2010–11 Australian region cyclone season
Encyclopedia
The 2010–11 Australian region cyclone season was a near average tropical cyclone season, with eleven tropical cyclones forming compared to an average of 12. The season began on 1 November 2010 and ended on 30 April 2011. The Australian region is defined as being to south of the equator, between the 90th meridian east
and 160th meridian east
. Tropical cyclones in this area are monitored by five Tropical Cyclone Warning Centres (TCWC's): Jakarta, Port Moresby, Perth, Darwin, and Brisbane, each of which have the power to name a tropical cyclone. The TCWC's in Perth, Darwin, and Brisbane are run by the Bureau of Meteorology, who designate significant tropical lows with a number and the U suffix. The Joint Typhoon Warning Center
also issues unofficial warnings for the region, designating significant tropical cyclones with the "S" suffix when they form west of 135°E, and the "P" suffix when they form east of 135°E.
, the Bureau of Meteorology's National Climate Centre (NCC), ahead of each season has issued a seasonal forecast for the whole basin between 90°E and 160°E. This season the NCC predicted how many tropical cyclones would pass through the basin as a whole as well as the Western, Northwest, Northern and Eastern regions with each prediction covering the whole tropical cyclone year from July to June. This year the BoM forecast that the cyclone season could start up to two weeks earlier than usual.
This year, the NCC forecast that the basin could turn into the most active season since 1983–84, with 20–22 tropical cyclones developing in or moving into the region, compared with an average of twelve tropical cyclones. For the western region, the NCC forecast that 11–12 tropical cyclones would develop in or pass through the region, compared to an average of seven. The NCC also predicted that 7–8 tropical cyclones would form or pass through the north-west region, compared to an average of six, while also predicting that five tropical cyclones would develop within the northern region. However, for both of these regions, the NCC noted that the model used for predicting cyclones in this area had a "low skill". For the eastern part of the basin the NCC reported that 6–7 tropical cyclones would develop and/or move through the region compared to an average of four.
The 2010–11 Australian region cyclone season was a near average tropical cyclone season, with eleven tropical cyclones forming compared to an average of 12. The season began on 1 November 2010 and ended on 30 April 2011. The Australian region is defined as being to south of the equator, between the 90th meridian east
and 160th meridian east
. Tropical cyclones in this area are monitored by five Tropical Cyclone Warning Centres (TCWC's): Jakarta, Port Moresby, Perth, Darwin, and Brisbane, each of which have the power to name a tropical cyclone. The TCWC's in Perth, Darwin, and Brisbane are run by the Bureau of Meteorology, who designate significant tropical lows with a number and the U suffix. The Joint Typhoon Warning Center
also issues unofficial warnings for the region, designating significant tropical cyclones with the "S" suffix when they form west of 135°E, and the "P" suffix when they form east of 135°E.
, the Bureau of Meteorology's National Climate Centre (NCC), ahead of each season has issued a seasonal forecast for the whole basin between 90°E and 160°E. This season the NCC predicted how many tropical cyclones would pass through the basin as a whole as well as the Western, Northwest, Northern and Eastern regions with each prediction covering the whole tropical cyclone year from July to June. This year the BoM forecast that the cyclone season could start up to two weeks earlier than usual.
This year, the NCC forecast that the basin could turn into the most active season since 1983–84, with 20–22 tropical cyclones developing in or moving into the region, compared with an average of twelve tropical cyclones. For the western region, the NCC forecast that 11–12 tropical cyclones would develop in or pass through the region, compared to an average of seven. The NCC also predicted that 7–8 tropical cyclones would form or pass through the north-west region, compared to an average of six, while also predicting that five tropical cyclones would develop within the northern region. However, for both of these regions, the NCC noted that the model used for predicting cyclones in this area had a "low skill". For the eastern part of the basin the NCC reported that 6–7 tropical cyclones would develop and/or move through the region compared to an average of four.
The 2010–11 Australian region cyclone season was a near average tropical cyclone season, with eleven tropical cyclones forming compared to an average of 12. The season began on 1 November 2010 and ended on 30 April 2011. The Australian region is defined as being to south of the equator, between the 90th meridian east
and 160th meridian east
. Tropical cyclones in this area are monitored by five Tropical Cyclone Warning Centres (TCWC's): Jakarta, Port Moresby, Perth, Darwin, and Brisbane, each of which have the power to name a tropical cyclone. The TCWC's in Perth, Darwin, and Brisbane are run by the Bureau of Meteorology, who designate significant tropical lows with a number and the U suffix. The Joint Typhoon Warning Center
also issues unofficial warnings for the region, designating significant tropical cyclones with the "S" suffix when they form west of 135°E, and the "P" suffix when they form east of 135°E.
, the Bureau of Meteorology's National Climate Centre (NCC), ahead of each season has issued a seasonal forecast for the whole basin between 90°E and 160°E. This season the NCC predicted how many tropical cyclones would pass through the basin as a whole as well as the Western, Northwest, Northern and Eastern regions with each prediction covering the whole tropical cyclone year from July to June. This year the BoM forecast that the cyclone season could start up to two weeks earlier than usual.
This year, the NCC forecast that the basin could turn into the most active season since 1983–84, with 20–22 tropical cyclones developing in or moving into the region, compared with an average of twelve tropical cyclones. For the western region, the NCC forecast that 11–12 tropical cyclones would develop in or pass through the region, compared to an average of seven. The NCC also predicted that 7–8 tropical cyclones would form or pass through the north-west region, compared to an average of six, while also predicting that five tropical cyclones would develop within the northern region. However, for both of these regions, the NCC noted that the model used for predicting cyclones in this area had a "low skill". For the eastern part of the basin the NCC reported that 6–7 tropical cyclones would develop and/or move through the region compared to an average of four.
have issued a forecast
that predicts the annual number of tropical cyclones that will affect the Australian region, and its 2 subregions Eastern and Western Australia. This season the GCACIC predicted that 19 tropical cyclones would either develop within or move into the basin compared to an average amount of 12 - 15. For the Western Australia subregion between 90°E and 135°E, the GCACIC predicted that 14 tropical cyclones would either develop or move into the region, compared to an average of 9 - 10 tropical cyclones. For the Eastern Australia subregion between 135°E and 160°E, the GCACIC predicted that 7 tropical cyclones would develop or move into the region, compared to an average of 5-6 tropical cyclones.
Throughout the Cocos (Keeling) Islands, heavy rain and gusty winds were experienced as Cyclone Anggrek passed. Only minor damage was reported, with several trees and power lines brought down. No deaths have been reported across the islands.
A Cyclone Watch was issued on 30 October for the Cocos (Keeling) Islands while the system was still a Tropical Low. On 31 October, when the Tropical Low was upgraded into a Cyclone, the Cyclone Watch was upgraded into a Cyclone Warning. On 1 November, the BOM reported that Cyclone Anggrek may produce destructive wind gusts as well as damaging waves. This led to a yellow alert being issued for Home and West Island. A red alert was also issued, but was downgraded back to a yellow alert as Anggrek moved away from the islands. During the next few days, the system slowly weakened as it slowly drifted west. Late on 4 November, the BoM issued their last advisory on Tropical Cyclone Anggrek, as it degenerated into a remnant low. The remnants of Tropical Cyclone Anggrek continued to move west, until it dissipated completely on 5 November.
In the catchment basin of the Gascoyne River heavy precipitation fell from 16 December to 19 December and triggered one of the worst floods along the Gascoyne River
in history. The rain also affected other river basins in the area, such as Wooramel, Murchison, Lyndon-Minilya, and Ashburton rivers. For the period from 16 to 20 December some stations reported up to 300 mm cumulated precipitation which is equivalent to the normal annual rainfall amount. The highest 24 hours rainfall was reported at Carnarvon Airport on 17 December. During that day 207.8 mm fell which set an all time record since recording began in 1883 with the previous record 119.4 mm set on 24 March 1923.
Preliminary estimates placed damage at A$100 million (US$100.4 million) with at least 2000 head of cattle lost in the flood.
. Early on Christmas Day (local time) it strengthened rapidly and was designated Tropical Cyclone Tasha when it was 95 km (59 mi) east northeast of Cairns. The cyclone crossed the coast between Cairns and Innisfail
at about 5:30 am, with wind gusts of up to 105 km/h (65 mph) recorded off the coast. Rainfall of about 100 mm was recorded in the space of an hour. Damage from associated flooding was estimated at A$
1 billion.
of Western Australia
. On 30 December, the TCWC Perth initiated cyclone advisories, as the system was initially forecasted to move off the coast of Western Australia, and strengthen into a Tropical Cyclone. Later on the same day, Tropical Low 06U moved off the coast of Western Australia, as expected, and slowly began to strengthen. After that, the low continued to strengthen, as it moved farther out west in the Indian Ocean
. But before it could reach Tropical Cyclone intensity, Tropical Low 06U dissipated completely on 4 January, and the BoM issued its final advisory on the system.
. The system gradually intensified and became a Category 1 tropical cyclone on 12 January, receiving the name "Vince". The cyclone was initially expected to reach Category 2 status, but it became less well organised and lost cyclone intensity on 14 January.
as an extratropical system.
(TCWC Brisbane) upgraded an area of low pressure to the North East of Cairns into a tropical low and designated it with '11U'. At midnight that day, TCWC Brisbane further upgraded the system into a Category 1 Tropical Cyclone and named it 'Anthony'. Soon Afterwards, the Joint Typhoon Warning Center
(JTWC) began monitoring the system as 'Tropical Cyclone 09P'. On the next day, the system moved into the South Pacific Ocean and weakened into a Tropical Low. On 25 January, the low moved back into the Australian region and started intensifying with that the JTWC issued a Tropical Cyclone Formation Alert stating that the system could redevelop into a Tropical Cyclone. On 28 January, TCWC Brisbane reported that the system regenerated into a Tropical Cyclone. Tropical Cyclone Anthony made landfall near Bowen
, at Category 2 strength, late on 30 January.
The remnants of the cyclone dropped large amount of rainfall in southern New South Wales, with 106 millimetre falling in Temora
, 77 millimetre at Burrinjuck Dam
, 63 millimetre at Wagga Wagga with higher rainfall totals being unofficially recorded at Muttama
and Rosehill
up until 3 February. The rainfall also resulted in flash flooding which cut the Olympic Highway at Illabo
, Newell Highway
between the towns of Beckom
and Mirrool
and Goldenfields Way north of Temora.
reported that a tropical low formed in the Gulf of Carpentaria
and gave it the identifier '12U'. Gradual strengthening took place and on 25 January, the Joint Typhoon Warning Center
(JTWC) began monitoring the system as Tropical Cyclone 10P. A few hours later, TCWC Perth upgraded the low into a Category 1 Tropical Cyclone, naming it Bianca. Early on the next day, TCWC Perth further upgraded Bianca to a Category 2 Tropical Cyclone. Intensification continued and late on the same day, TCWC Perth upgraded Bianca into a Category 3 Severe Tropical Cyclone. The system continued to intensify and became a Category 4 severe tropical cyclone on 28 January. On the same day, the system started weakening rapidly and TCWC Perth downgraded Bianca into a Category 3 Severe Tropical Cyclone.
Rain and strong winds were being felt along the Kimberley coast on 25 January. On 26 January, Bianca moved away from Kimberley and weather conditions started to improve. Bianca disrupted operations in Australia's major iron ore port and several oil facilities. In Western Australia
, preparations were underway as the system was soon expected to move close to land. Bianca is expected to move parallel to the Australian coast and re-curve to the south-southeast. As soon as Bianca became a category 3 Severe tropical cyclone, strong winds lashed through Pilbara suspending Oil and gas production and port facilities. Though Bianca was moving away and the level of risk was going down, coastal communities between Onslow
and Exmouth
remained on a red alert as the system intensified. On 28 January, According to the media, there was a chance for Bianca, to start weakening, as it was moving further south into a colder, high pressure zone.
The last cyclone to track south of Perth was Cyclone Ned in 1989.
Severe Tropical Cyclone Bianca was expected to make landfall around Mandurah as a weak Category 1 or strong Tropical Low late on 30 January. A Cyclone Warning was activated for the area between just north of Jurien Bay
and Albany
, including Perth. The warnings were cancelled on 30 January, however, as Bianca dissipated south of Western Australia on the afternoon of 30 January. The airmass around Bianca was responsible for giving Perth and the Southwest of WA a taste of the tropics with severe thunderstorms, unrelated to Bianca, springing up on Saturday 29th causing damage in the Geraldton region. Two deaths were attributed to damaging severe thunderstorms that formed along the storm's outer bands.
in 2006 and Cyclone Tracy
, which nearly destroyed Darwin
, in 1974. Thousands of residents in the path of the storm were urged to evacuate by Premier Anna Bligh.
Yasi crossed the Queensland
coast near Mission Beach
shortly after midnight (local time
) on 3 February. At that time, the large destructive core around the eye extended between Innisfail
and Cardwell, Queensland
. Latest reports indicate that Yasi is the second costliest tropical cyclone in Australia's history after Cyclone Tracy, as well as the costliest without inflation and so far, Yasi has caused at least 3.5 billion (2011 USD) in damage. One death occurred due to asphyxiation in Ingham
.
The Bureau of Meteorology issued a Cyclone watch later in the day reported that a tropical low formed 350 kilometre NNW of Exmouth
. A Cyclone watch had been issue for the coastal communities between Onslow
to Coral Bay. Late on 16 February, the low formed into Tropical Cyclone Dianne whilst 445 km NW of Exmouth. Dianne, as expected, intensified, and was upgraded to a Category 2 cyclone on 18 February whilst slowly moving towards the SSW. On 19 February the system intensified into a Category 3 severe tropical cyclone.
By late 21 February the system lost its strength as it moved into colder waters and was downgraded to a Category 1 Tropical Cyclone, and by 22 February it was classified as an ex-Tropical low.
reported that a tropical low formed near latitude 13.2S, longitude 130.7E, about 40 kilometre west southwest of Batchelor
. A severe weather warning was issued for northwest Darwin-Daly District
and the Tiwi Islands
. Heavy rain pounded the area on 15 February with reports of Marrara
recording 179.4 mm (7.1 in) and Darwin Airport 131 mm (5.2 in) of rain. This was later followed by 339.6 mm (13.4 in) of rain in just 24 hours, which is the highest 24-hour rainfall for the city on record.
On 16 February the slow moving system strengthened into Tropical Cyclone Carlos causing localised flooding and damage to homes, with fallen trees. Schools in Darwin, Darwin International Airport and East Arm Wharf were closed. After looping around the Darwin area overnight and back over land the system weakened on 17 February and BOM downgraded it to a Tropical low. A record three day total of 684.8 mm (27 in) rain was recorded at Darwin Airport due to the lingering of the system.
The system moved slowly southwest on 18 February moving towards the Northern Territory/Western Australian border with a possibility of restrengthening. The community of Daly River
received 442 mm (17.4 in) of rainfall. On 19 February the system passed into the Northern Kimberley region. Rainfall totals were not as large as in previous days. Wyndham
recorded 90 mm (3.5 in) while Kalumburu
recorded 80 mm (3.1 in) of rainfall.
In the early hours of 21 February the system returned to the open waters of the Indian Ocean
, causing it to redevelop back into a cyclone. The system was located 75 km (46.6 mi) northwest of Broome
. The cyclone continued to track southwest at a relatively fast pace and produced a squall line
that generated four tornadoes in the mining town of Karratha which damaged 38 homes as well as numerous cars, buildings and a school. It also strengthened steadily to become a category 2 cyclone.
On 22 February the system moved parallel to the Pilbara coast. Varanus Island
recorded 59 mm (2.3 in) of rainfall and the highest wind gusts in the area was 120 km/h (74.6 mph) at Bedout Island. The system became more organised and on 23 February the record rainfall amount of 283 mm (11.1 in) was recorded at Barrow Island
. The strongest gusts of 139 km/h (86.4 mph) recorded at Varanus Island. The cyclone crossed the North West Cape
and lashed Onslow
and Exmouth
with high winds up to 155 km/h (96.3 mph) and rain.
As Carlos moved away from the western coast of Australia on 24 February it strengthened into a Severe Tropical Cyclone.
reported that a tropical low formed estimated to be 75 kilometre west northwest of Kalumburu
and 445 kilometre northeast of Derby
and moving slowly southwest parallel to the north Kimberly coast. In the early hours of 28 February the tropical low moved inland from King Sound
. Heavy rainfall was reported on the Dampier Peninsula
east and southeast of Port Hedland
, including Telfer
and parts of the De Grey
catchment. Derby recorded 83 mm (3.3 in) of rain while Camballin
received 142 mm (5.6 in) and the aboriginal community of Looma
had 105 mm (4.1 in). The tropical low continued moving overland and the BOM issued their final advice on 28 February.
, Vanuatu
, in the Coral Sea
. During that day, the low tracked eastwards, and gradually intensified. On 8 March it continued eastwards. Later that day, the low moved out of the Australian region and entered the South Pacific.
. It later developed into Tropical Storm Cherono.
on April 10 and developed slowly as it moved westwards. It was upgraded on the 15th of April and was named 'Errol'. Errol moved southward slowly, over the next couple of days. On April 20, Errol dissipated.
, Papua New Guinea
. Tropical cyclone formation in this area is rare, with no named tropical cyclones developing in it since 2007. As names are assigned in a random order the whole list is shown below.
have assigned names to tropical cyclones from. However the Bureau of Meteorology still operates the various TCWCs in Perth
, Darwin
& Brisbane
. They monitor all tropical cyclones that form within the Australian region, including tropical lows or tropical cyclones located within TCWC Jakarta's or TCWC Port Moresby's area of responsibility. The next name that will be used is Fina.
!01U/02S !!Anggrek
|style="background:#"| || style="background:#"| ||style="background:#"| ||style="background:#"| || Cocos (Keeling) Islands || None || None || None ||
|-
! 02U/03S !! Abele
|style="background:#"| ||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 03U !! N/A
|style="background:#"| ||style="background:#"| || style="background:#"| ||style="background:#"| || Western Australia || $ || $ || None ||
|-
! 04U !! N/A
|style="background:#"| ||style="background:#"| || style="background:#"|||style="background:#"| || None || None || None || None ||
|-
! 05U/04P !! Tasha
|style="background:#"| || style="background:#"| || style="background:#"| || style="background:#"| || Queensland || Unknown|| Unknown|| None ||Damage from Tropical Cyclones Tasha and Anthony are not known as they both contributed to the 2010–11 Queensland floods
, which caused over A$ 30 billion.
|-
! 06U !! N/A
|style="background:#"| || style="background:#"| || style="background:#"| || style="background:#"| || Northern Territory, Western Australia || None || None || None ||
|-
! 07U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 08U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 09U/06S !! Vince
|style="background:#"|||style="background:#"| || style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 10U/07P !! Zelia
|style="background:#"| ||style="background:#"| || style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 11U/09P !! Anthony
|style="background:#"| || style="background:#"| ||style="background:#"| ||style="background:#"| || Queensland || Unknown || Unknown || None ||
|-
! 12U/10S !! Bianca
|style="background:#"||| style="background:#"| ||style="background:#"| ||style="background:#"| || Western Australia || Unknown || Unknown || 2||
|-
! 13U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 14U/11P !! Yasi
|style="background:#"| ||style="background:#"| || style="background:#"| || style="background:#"| || Solomon Islands, Australia || $ || $ || 1 ||
|-
! 15U/14S !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 16U/16S !! Dianne
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 17U/15S !! Carlos
|style="background:#"| || style="background:#"| ||style="background:#"| ||style="background:#"| || Northern Territory, Western Australia|| $|| $ || None ||
|-
! 18U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 19U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 20U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 21U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 22U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 23U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 25U/20S !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 26U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 27U/08R !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 28U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 29U/21S !! Errol
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-class="sortbottom"
|Colspan=2|28 Lows || 28 October – April 20 || || 205 km/h (125 mph) || 929 || || $ || $ || 3 ||
|}
90th meridian east
The meridian 90° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.The Ninety East Ridge is named after the meridian....
and 160th meridian east
160th meridian east
The meridian 160° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole....
. Tropical cyclones in this area are monitored by five Tropical Cyclone Warning Centres (TCWC's): Jakarta, Port Moresby, Perth, Darwin, and Brisbane, each of which have the power to name a tropical cyclone. The TCWC's in Perth, Darwin, and Brisbane are run by the Bureau of Meteorology, who designate significant tropical lows with a number and the U suffix. The Joint Typhoon Warning Center
Joint Typhoon Warning Center
The Joint Typhoon Warning Center is a joint United States Navy – United States Air Force task force located at the Naval Maritime Forecast Center in Pearl Harbor, Hawaii...
also issues unofficial warnings for the region, designating significant tropical cyclones with the "S" suffix when they form west of 135°E, and the "P" suffix when they form east of 135°E.
Seasonal forecasts
| Warning Centre |
Date | Average activity |
Predicted activity |
Actual activity (BoM) |
Actual activity (JTWC) |
| Whole | October 2010 | 12 | 20–22 | 11 | 13 |
| Western | October 2010 | 7 | 11–12 | 7 | 9 |
| North West | October 2010 | 6 | 7–8 | 5 | 7 |
| Northern | October 2010 | 4 | 5 | 2 | 3 |
| Eastern | October 2010 | 4 | 6–7 | 4 | 4 |
| Source:BoM's Seasonal Outlook for Tropical Cyclones. | |||||
|---|---|---|---|---|---|
| –––––––––––––––––––––––––––––––––––––––––– | |||||
| Whole | November 2010 | 12–15 | 19 | 11 | 13 |
| Western | November 2010 | 9–10 | 14 | 7 | 9 |
| Eastern | November 2010 | 5-6 | 7 | 4 | 4 |
| Source:GCACIC City University of Hong Kong City University of Hong Kong is a comprehensive research university in Hong Kong. It was founded in 1984 as City Polytechnic of Hong Kong and became a fully accredited university in 1994. It has achieved fast growth in recent years and received international recognition for its academic achievements... 's Seasonal outlook for tropical cyclones. |
|||||
Bureau of Meteorology
Since the 2009–10 season2009–10 Australian region cyclone season
The 2009–10 Australian region cyclone season was a below average tropical cyclone season, with eight tropical cyclones forming compared to an average of 12. The season began on 1 November 2009 and ran through until it end on 30 April 2010. The Australian region is defined as being to south of the...
, the Bureau of Meteorology's National Climate Centre (NCC), ahead of each season has issued a seasonal forecast for the whole basin between 90°E and 160°E. This season the NCC predicted how many tropical cyclones would pass through the basin as a whole as well as the Western, Northwest, Northern and Eastern regions with each prediction covering the whole tropical cyclone year from July to June. This year the BoM forecast that the cyclone season could start up to two weeks earlier than usual.
This year, the NCC forecast that the basin could turn into the most active season since 1983–84, with 20–22 tropical cyclones developing in or moving into the region, compared with an average of twelve tropical cyclones. For the western region, the NCC forecast that 11–12 tropical cyclones would develop in or pass through the region, compared to an average of seven. The NCC also predicted that 7–8 tropical cyclones would form or pass through the north-west region, compared to an average of six, while also predicting that five tropical cyclones would develop within the northern region. However, for both of these regions, the NCC noted that the model used for predicting cyclones in this area had a "low skill". For the eastern part of the basin the NCC reported that 6–7 tropical cyclones would develop and/or move through the region compared to an average of four.
The 2010–11 Australian region cyclone season was a near average tropical cyclone season, with eleven tropical cyclones forming compared to an average of 12. The season began on 1 November 2010 and ended on 30 April 2011. The Australian region is defined as being to south of the equator, between the 90th meridian east
90th meridian east
The meridian 90° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.The Ninety East Ridge is named after the meridian....
and 160th meridian east
160th meridian east
The meridian 160° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole....
. Tropical cyclones in this area are monitored by five Tropical Cyclone Warning Centres (TCWC's): Jakarta, Port Moresby, Perth, Darwin, and Brisbane, each of which have the power to name a tropical cyclone. The TCWC's in Perth, Darwin, and Brisbane are run by the Bureau of Meteorology, who designate significant tropical lows with a number and the U suffix. The Joint Typhoon Warning Center
Joint Typhoon Warning Center
The Joint Typhoon Warning Center is a joint United States Navy – United States Air Force task force located at the Naval Maritime Forecast Center in Pearl Harbor, Hawaii...
also issues unofficial warnings for the region, designating significant tropical cyclones with the "S" suffix when they form west of 135°E, and the "P" suffix when they form east of 135°E.
Seasonal forecasts
| Warning Centre |
Date | Average activity |
Predicted activity |
Actual activity (BoM) |
Actual activity (JTWC) |
| Whole | October 2010 | 12 | 20–22 | 11 | 13 |
| Western | October 2010 | 7 | 11–12 | 7 | 9 |
| North West | October 2010 | 6 | 7–8 | 5 | 7 |
| Northern | October 2010 | 4 | 5 | 2 | 3 |
| Eastern | October 2010 | 4 | 6–7 | 4 | 4 |
| Source:BoM's Seasonal Outlook for Tropical Cyclones. | |||||
|---|---|---|---|---|---|
| –––––––––––––––––––––––––––––––––––––––––– | |||||
| Whole | November 2010 | 12–15 | 19 | 11 | 13 |
| Western | November 2010 | 9–10 | 14 | 7 | 9 |
| Eastern | November 2010 | 5-6 | 7 | 4 | 4 |
| Source:GCACIC City University of Hong Kong City University of Hong Kong is a comprehensive research university in Hong Kong. It was founded in 1984 as City Polytechnic of Hong Kong and became a fully accredited university in 1994. It has achieved fast growth in recent years and received international recognition for its academic achievements... 's Seasonal outlook for tropical cyclones. |
|||||
Bureau of Meteorology
Since the 2009–10 season2009–10 Australian region cyclone season
The 2009–10 Australian region cyclone season was a below average tropical cyclone season, with eight tropical cyclones forming compared to an average of 12. The season began on 1 November 2009 and ran through until it end on 30 April 2010. The Australian region is defined as being to south of the...
, the Bureau of Meteorology's National Climate Centre (NCC), ahead of each season has issued a seasonal forecast for the whole basin between 90°E and 160°E. This season the NCC predicted how many tropical cyclones would pass through the basin as a whole as well as the Western, Northwest, Northern and Eastern regions with each prediction covering the whole tropical cyclone year from July to June. This year the BoM forecast that the cyclone season could start up to two weeks earlier than usual.
This year, the NCC forecast that the basin could turn into the most active season since 1983–84, with 20–22 tropical cyclones developing in or moving into the region, compared with an average of twelve tropical cyclones. For the western region, the NCC forecast that 11–12 tropical cyclones would develop in or pass through the region, compared to an average of seven. The NCC also predicted that 7–8 tropical cyclones would form or pass through the north-west region, compared to an average of six, while also predicting that five tropical cyclones would develop within the northern region. However, for both of these regions, the NCC noted that the model used for predicting cyclones in this area had a "low skill". For the eastern part of the basin the NCC reported that 6–7 tropical cyclones would develop and/or move through the region compared to an average of four.
The 2010–11 Australian region cyclone season was a near average tropical cyclone season, with eleven tropical cyclones forming compared to an average of 12. The season began on 1 November 2010 and ended on 30 April 2011. The Australian region is defined as being to south of the equator, between the 90th meridian east
90th meridian east
The meridian 90° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.The Ninety East Ridge is named after the meridian....
and 160th meridian east
160th meridian east
The meridian 160° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole....
. Tropical cyclones in this area are monitored by five Tropical Cyclone Warning Centres (TCWC's): Jakarta, Port Moresby, Perth, Darwin, and Brisbane, each of which have the power to name a tropical cyclone. The TCWC's in Perth, Darwin, and Brisbane are run by the Bureau of Meteorology, who designate significant tropical lows with a number and the U suffix. The Joint Typhoon Warning Center
Joint Typhoon Warning Center
The Joint Typhoon Warning Center is a joint United States Navy – United States Air Force task force located at the Naval Maritime Forecast Center in Pearl Harbor, Hawaii...
also issues unofficial warnings for the region, designating significant tropical cyclones with the "S" suffix when they form west of 135°E, and the "P" suffix when they form east of 135°E.
Seasonal forecasts
| Warning Centre |
Date | Average activity |
Predicted activity |
Actual activity (BoM) |
Actual activity (JTWC) |
| Whole | October 2010 | 12 | 20–22 | 11 | 13 |
| Western | October 2010 | 7 | 11–12 | 7 | 9 |
| North West | October 2010 | 6 | 7–8 | 5 | 7 |
| Northern | October 2010 | 4 | 5 | 2 | 3 |
| Eastern | October 2010 | 4 | 6–7 | 4 | 4 |
| Source:BoM's Seasonal Outlook for Tropical Cyclones. | |||||
|---|---|---|---|---|---|
| –––––––––––––––––––––––––––––––––––––––––– | |||||
| Whole | November 2010 | 12–15 | 19 | 11 | 13 |
| Western | November 2010 | 9–10 | 14 | 7 | 9 |
| Eastern | November 2010 | 5-6 | 7 | 4 | 4 |
| Source:GCACIC City University of Hong Kong City University of Hong Kong is a comprehensive research university in Hong Kong. It was founded in 1984 as City Polytechnic of Hong Kong and became a fully accredited university in 1994. It has achieved fast growth in recent years and received international recognition for its academic achievements... 's Seasonal outlook for tropical cyclones. |
|||||
Bureau of Meteorology
Since the 2009–10 season2009–10 Australian region cyclone season
The 2009–10 Australian region cyclone season was a below average tropical cyclone season, with eight tropical cyclones forming compared to an average of 12. The season began on 1 November 2009 and ran through until it end on 30 April 2010. The Australian region is defined as being to south of the...
, the Bureau of Meteorology's National Climate Centre (NCC), ahead of each season has issued a seasonal forecast for the whole basin between 90°E and 160°E. This season the NCC predicted how many tropical cyclones would pass through the basin as a whole as well as the Western, Northwest, Northern and Eastern regions with each prediction covering the whole tropical cyclone year from July to June. This year the BoM forecast that the cyclone season could start up to two weeks earlier than usual.
This year, the NCC forecast that the basin could turn into the most active season since 1983–84, with 20–22 tropical cyclones developing in or moving into the region, compared with an average of twelve tropical cyclones. For the western region, the NCC forecast that 11–12 tropical cyclones would develop in or pass through the region, compared to an average of seven. The NCC also predicted that 7–8 tropical cyclones would form or pass through the north-west region, compared to an average of six, while also predicting that five tropical cyclones would develop within the northern region. However, for both of these regions, the NCC noted that the model used for predicting cyclones in this area had a "low skill". For the eastern part of the basin the NCC reported that 6–7 tropical cyclones would develop and/or move through the region compared to an average of four.
City University of Hong Kong
Since the 2009-10 season, the Guy Carpenter Asia-Pacific Climate Impact Centre (GCACIC) at the City University of Hong KongCity University of Hong Kong
City University of Hong Kong is a comprehensive research university in Hong Kong. It was founded in 1984 as City Polytechnic of Hong Kong and became a fully accredited university in 1994. It has achieved fast growth in recent years and received international recognition for its academic achievements...
have issued a forecast
Tropical cyclone seasonal forecasting
Tropical cyclone seasonal forecasting is the process of predicting the number of tropical cyclones in one of the world's seven tropical cyclone basins during a particular tropical cyclone season. In the north Atlantic Ocean, one of the most widely publicized annual predictions comes from the...
that predicts the annual number of tropical cyclones that will affect the Australian region, and its 2 subregions Eastern and Western Australia. This season the GCACIC predicted that 19 tropical cyclones would either develop within or move into the basin compared to an average amount of 12 - 15. For the Western Australia subregion between 90°E and 135°E, the GCACIC predicted that 14 tropical cyclones would either develop or move into the region, compared to an average of 9 - 10 tropical cyclones. For the Eastern Australia subregion between 135°E and 160°E, the GCACIC predicted that 7 tropical cyclones would develop or move into the region, compared to an average of 5-6 tropical cyclones.
Tropical Cyclone Anggrek
On 28 October, the TCWC's in Perth and Jakarta reported that a Tropical Low had formed in TCWC Jakarta's area of responsibility, about 650 km, (400 mi) to the west of Jakarta, Indonesia. Over the next couple of days the Tropical Low gradually intensified, before TCWC Jakarta reported early on 31 October, that the low had intensified into a Tropical Cyclone and named it Anggrek. Later that day, as Anggrek moved into TCWC Perths area of responsibility it was reported that Anggrek had further intensified into a Category 2 Tropical Cyclone. Anggrek then passed to the east of the Cocos (Keeling) Islands early on 2 November. Later that day, after passing to the east of the Cocos (Keeling) Islands, the TCWC in Perth reported that Tropical Cyclone Anggrek had weakened into a Category 1 Cyclone. Anggrek continued to weaken, and on 4 November, the TCWC Perth reported Anggrek had become a Tropical Low, and issued their final advisory on the system.Throughout the Cocos (Keeling) Islands, heavy rain and gusty winds were experienced as Cyclone Anggrek passed. Only minor damage was reported, with several trees and power lines brought down. No deaths have been reported across the islands.
A Cyclone Watch was issued on 30 October for the Cocos (Keeling) Islands while the system was still a Tropical Low. On 31 October, when the Tropical Low was upgraded into a Cyclone, the Cyclone Watch was upgraded into a Cyclone Warning. On 1 November, the BOM reported that Cyclone Anggrek may produce destructive wind gusts as well as damaging waves. This led to a yellow alert being issued for Home and West Island. A red alert was also issued, but was downgraded back to a yellow alert as Anggrek moved away from the islands. During the next few days, the system slowly weakened as it slowly drifted west. Late on 4 November, the BoM issued their last advisory on Tropical Cyclone Anggrek, as it degenerated into a remnant low. The remnants of Tropical Cyclone Anggrek continued to move west, until it dissipated completely on 5 November.
Tropical Cyclone Abele
On 29 November, TCWC Perth reported that Tropical Low 02U had formed within the South-West Indian Ocean. Later that day, both the RSMC La Reunion and the JTWC started to monitor the low, designating it as Tropical Disturbance 02 and Tropical Cyclone 03S respectively. On 2 December, RSMC La Reunion reported that it had intensified into a moderate tropical storm and named it "Abele". On 3 December, Abele moved southeast and crossed 90°E as a Category 2 tropical cyclone when RSMC La reunion released their final advisory. Later that day, BoM took the full responsibility of monitoring the system and initiated warnings on Abele as a Category 1 tropical cyclone. On 4 December, Abele turned south-southeast while continuing to weaken further. The BoM then downgraded Abele into a tropical low and issued their final advisory. The remnants of Abele continued to weaken as they slowly moved southeast, before dissipating completely on 6 December.Tropical Low 03U
On 15 December a monsoonal low developed about 500 km north-west of Exmouth, Western Australia. The system drifted slowly to the south-east. Gales and heavy rain reached areas far from the centre of the system which crossed the coast near Coral Bay on 18 December. However, shortly after landfall the system turned sharply to the south-west and reached the Indian Ocean west of Carnarvon on 19 December. It moved away from the coast and dissipated late on 20 December some 500 km west of Geraldton.In the catchment basin of the Gascoyne River heavy precipitation fell from 16 December to 19 December and triggered one of the worst floods along the Gascoyne River
Gascoyne River
At 760 km, the Gascoyne River is the longest river in Western Australia.The river rises below Wilgoona Hill in the Robinson Ranges west of the Gibson Desert and it flows into Shark Bay and the Indian Ocean at Carnarvon....
in history. The rain also affected other river basins in the area, such as Wooramel, Murchison, Lyndon-Minilya, and Ashburton rivers. For the period from 16 to 20 December some stations reported up to 300 mm cumulated precipitation which is equivalent to the normal annual rainfall amount. The highest 24 hours rainfall was reported at Carnarvon Airport on 17 December. During that day 207.8 mm fell which set an all time record since recording began in 1883 with the previous record 119.4 mm set on 24 March 1923.
Preliminary estimates placed damage at A$100 million (US$100.4 million) with at least 2000 head of cattle lost in the flood.
Tropical Cyclone Tasha
In late December, a low pressure area was tracked for several days moving westwards towards QueenslandQueensland
Queensland is a state of Australia, occupying the north-eastern section of the mainland continent. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean...
. Early on Christmas Day (local time) it strengthened rapidly and was designated Tropical Cyclone Tasha when it was 95 km (59 mi) east northeast of Cairns. The cyclone crossed the coast between Cairns and Innisfail
Innisfail, Queensland
Innisfail is a town located in the far north of the state of Queensland, Australia. It is the major township of the Cassowary Coast and is well renowned for its sugar and banana industries, as well as for being one of Australia's wettest towns...
at about 5:30 am, with wind gusts of up to 105 km/h (65 mph) recorded off the coast. Rainfall of about 100 mm was recorded in the space of an hour. Damage from associated flooding was estimated at A$
Australian dollar
The Australian dollar is the currency of the Commonwealth of Australia, including Christmas Island, Cocos Islands, and Norfolk Island, as well as the independent Pacific Island states of Kiribati, Nauru and Tuvalu...
1 billion.
Tropical Low 06U
At the end of December, a Tropical Low developed inland over the Top EndTop End
The Top End of northern Australia is the second northernmost point on the continent. It covers a rather vaguely-defined area of perhaps 400,000 square kilometres behind the northern coast from the Northern Territory capital of Darwin across to Arnhem Land with the Indian Ocean on the west, the...
of Western Australia
Western Australia
Western Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...
. On 30 December, the TCWC Perth initiated cyclone advisories, as the system was initially forecasted to move off the coast of Western Australia, and strengthen into a Tropical Cyclone. Later on the same day, Tropical Low 06U moved off the coast of Western Australia, as expected, and slowly began to strengthen. After that, the low continued to strengthen, as it moved farther out west in the Indian Ocean
Indian Ocean
The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...
. But before it could reach Tropical Cyclone intensity, Tropical Low 06U dissipated completely on 4 January, and the BoM issued its final advisory on the system.
Tropical Cyclone Vince
At midnight, 10 January, The Bureau of Meteorology (BoM) reported that a Tropical Low developed off the coast of Western AustraliaWestern Australia
Western Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...
. The system gradually intensified and became a Category 1 tropical cyclone on 12 January, receiving the name "Vince". The cyclone was initially expected to reach Category 2 status, but it became less well organised and lost cyclone intensity on 14 January.
Severe Tropical Cyclone Zelia
A tropical depression formed in the Coral Sea east of Cairns on 13 January. The depression intensified into a Tropical Cyclone on 14 January, and given the name "Zelia". It strengthened rapidly and became the first severe tropical cyclone of the season on 15 January. Moving quickly to the south-east it crossed the 160°E meridian into the Pacific Basin on 16 January, after impacting New ZealandNew Zealand
New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...
as an extratropical system.
Tropical Cyclone Anthony
On 22 January Tropical Cyclone Warning Centre in BrisbaneBrisbane
Brisbane is the capital and most populous city in the Australian state of Queensland and the third most populous city in Australia. Brisbane's metropolitan area has a population of over 2 million, and the South East Queensland urban conurbation, centred around Brisbane, encompasses a population of...
(TCWC Brisbane) upgraded an area of low pressure to the North East of Cairns into a tropical low and designated it with '11U'. At midnight that day, TCWC Brisbane further upgraded the system into a Category 1 Tropical Cyclone and named it 'Anthony'. Soon Afterwards, the Joint Typhoon Warning Center
Joint Typhoon Warning Center
The Joint Typhoon Warning Center is a joint United States Navy – United States Air Force task force located at the Naval Maritime Forecast Center in Pearl Harbor, Hawaii...
(JTWC) began monitoring the system as 'Tropical Cyclone 09P'. On the next day, the system moved into the South Pacific Ocean and weakened into a Tropical Low. On 25 January, the low moved back into the Australian region and started intensifying with that the JTWC issued a Tropical Cyclone Formation Alert stating that the system could redevelop into a Tropical Cyclone. On 28 January, TCWC Brisbane reported that the system regenerated into a Tropical Cyclone. Tropical Cyclone Anthony made landfall near Bowen
Bowen, Queensland
Bowen is a town on the eastern coast of Queensland, Australia. At the 2006 census, Bowen had a population of 7,484.-Geography:Bowen is located on the north-east coast of Australia, at exactly twenty degrees south of the equator. In fact, the twentieth parallel crosses the main street...
, at Category 2 strength, late on 30 January.
The remnants of the cyclone dropped large amount of rainfall in southern New South Wales, with 106 millimetre falling in Temora
Temora, New South Wales
Temora is a town located in north east part of the Riverina area of New South Wales, south-west of the state capital, Sydney. At the 2006 census the population of Temora was 4,086.-History:...
, 77 millimetre at Burrinjuck Dam
Burrinjuck Dam
Burrinjuck Dam is a high, concrete gravity dam on the Murrumbidgee River approximately 60 km from Yass, New South Wales, Australia. The Yass and Goodradigbee Rivers flow into the dam. The dam divides the upper and lower catchment of the Murrumbidgee and is the headwater storage for the...
, 63 millimetre at Wagga Wagga with higher rainfall totals being unofficially recorded at Muttama
Muttama, New South Wales
Muttama is a rural community in the central east part of the Riverina. It is situated by road, about 24 kilometres south from Cootamundra and 17 kilometres north from Coolac....
and Rosehill
Rosehill, New South Wales
Rosehill is a suburb of Sydney, in the state of New South Wales, Australia. Rosehill is located 23 kilometres west of the Sydney central business district in the local government area of the City of Parramatta and is part of the Greater Western Sydney region....
up until 3 February. The rainfall also resulted in flash flooding which cut the Olympic Highway at Illabo
Illabo, New South Wales
Illabo is a locality in the South West Slopes part of the Riverina and situated about 13 kilometres southwest of Bethungra and 16 km northeast of Junee. At the 2006 census, Illabo had a population of 190 people. Illabo Post Office opened on 1 July 1879. A railway station on the Main...
, Newell Highway
Newell Highway
The Newell Highway is the longest highway in New South Wales, Australia. It runs parallel to the eastern coast about 400 kilometres inland, and is the main inland direct road link from Victoria to Queensland, bypassing the more congested coastal areas of New South Wales...
between the towns of Beckom
Beckom, New South Wales
Beckom is a village in the central part of the Riverina. It is situated about 5 kilometres north-east from Ardlethan, and situated about east from Griffith. It had a population of 170 people on the 2006 Census night. The town was established with the opening of the railway line in 1908...
and Mirrool
Mirrool, New South Wales
Mirrool is a small village community at the very northern edge of the Riverina region of New South Wales, Australia. It is situated by road, about 16 kilometres east from Beckom and 19 kilometres west from Ariah Park...
and Goldenfields Way north of Temora.
Severe Tropical Cyclone Bianca
Early on 21 January the Tropical Cyclone Warning Centre (TCWC) in DarwinDarwin, Northern Territory
Darwin is the capital city of the Northern Territory, Australia. Situated on the Timor Sea, Darwin has a population of 127,500, making it by far the largest and most populated city in the sparsely populated Northern Territory, but the least populous of all Australia's capital cities...
reported that a tropical low formed in the Gulf of Carpentaria
Gulf of Carpentaria
The Gulf of Carpentaria is a large, shallow sea enclosed on three sides by northern Australia and bounded on the north by the Arafura Sea...
and gave it the identifier '12U'. Gradual strengthening took place and on 25 January, the Joint Typhoon Warning Center
Joint Typhoon Warning Center
The Joint Typhoon Warning Center is a joint United States Navy – United States Air Force task force located at the Naval Maritime Forecast Center in Pearl Harbor, Hawaii...
(JTWC) began monitoring the system as Tropical Cyclone 10P. A few hours later, TCWC Perth upgraded the low into a Category 1 Tropical Cyclone, naming it Bianca. Early on the next day, TCWC Perth further upgraded Bianca to a Category 2 Tropical Cyclone. Intensification continued and late on the same day, TCWC Perth upgraded Bianca into a Category 3 Severe Tropical Cyclone. The system continued to intensify and became a Category 4 severe tropical cyclone on 28 January. On the same day, the system started weakening rapidly and TCWC Perth downgraded Bianca into a Category 3 Severe Tropical Cyclone.
Rain and strong winds were being felt along the Kimberley coast on 25 January. On 26 January, Bianca moved away from Kimberley and weather conditions started to improve. Bianca disrupted operations in Australia's major iron ore port and several oil facilities. In Western Australia
Western Australia
Western Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...
, preparations were underway as the system was soon expected to move close to land. Bianca is expected to move parallel to the Australian coast and re-curve to the south-southeast. As soon as Bianca became a category 3 Severe tropical cyclone, strong winds lashed through Pilbara suspending Oil and gas production and port facilities. Though Bianca was moving away and the level of risk was going down, coastal communities between Onslow
Onslow
Onslow can represent:People*Denzil Onslow , British politician, Member of Parliament for several constituencies*Denzil Onslow , general in the British Army and amateur cricketer...
and Exmouth
Exmouth
Exmouth is a town in Devon. It may also refer to:Places*Exmouth Peninsula in Southern Chile*Exmouth, Western AustraliaPeople*Edward Pellew, 1st Viscount Exmouth , a British naval officerShips...
remained on a red alert as the system intensified. On 28 January, According to the media, there was a chance for Bianca, to start weakening, as it was moving further south into a colder, high pressure zone.
The last cyclone to track south of Perth was Cyclone Ned in 1989.
Severe Tropical Cyclone Bianca was expected to make landfall around Mandurah as a weak Category 1 or strong Tropical Low late on 30 January. A Cyclone Warning was activated for the area between just north of Jurien Bay
Jurien Bay, Western Australia
-Demographics:At the ABS 2006 census, Jurien Bay had a population of 1,175, which represented over one-third of the total population of the Shire of Dandaragan...
and Albany
Albany, Western Australia
Albany is a port city in the Great Southern region of Western Australia, some 418 km SE of Perth, the state capital. As of 2009, Albany's population was estimated at 33,600, making it the 6th-largest city in the state....
, including Perth. The warnings were cancelled on 30 January, however, as Bianca dissipated south of Western Australia on the afternoon of 30 January. The airmass around Bianca was responsible for giving Perth and the Southwest of WA a taste of the tropics with severe thunderstorms, unrelated to Bianca, springing up on Saturday 29th causing damage in the Geraldton region. Two deaths were attributed to damaging severe thunderstorms that formed along the storm's outer bands.
Severe Tropical Cyclone Yasi
Yasi entered the Australian region from the South Pacific basin on 31 January. By the time Yasi crossed into the basin, preparations for the storm were under way. Media outlets referred to the storm as "what could be the state's worst cyclone in history." Many fear that the tropical cyclone could cause damage more severe than Cyclone LarryCyclone Larry
Severe Tropical Cyclone Larry was a tropical cyclone that made landfall in Australia during the 2005-06 Southern Hemisphere tropical cyclone season. Larry originated as a low pressure system over the eastern Coral Sea on 16 March and was monitored by the Australian Bureau of Meteorology in...
in 2006 and Cyclone Tracy
Cyclone Tracy
Cyclone Tracy was a tropical cyclone that devastated the city of Darwin, Northern Territory, Australia, from Christmas Eve to Christmas Day, 1974...
, which nearly destroyed Darwin
Darwin, Northern Territory
Darwin is the capital city of the Northern Territory, Australia. Situated on the Timor Sea, Darwin has a population of 127,500, making it by far the largest and most populated city in the sparsely populated Northern Territory, but the least populous of all Australia's capital cities...
, in 1974. Thousands of residents in the path of the storm were urged to evacuate by Premier Anna Bligh.
Yasi crossed the Queensland
Queensland
Queensland is a state of Australia, occupying the north-eastern section of the mainland continent. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean...
coast near Mission Beach
Mission Beach, Queensland
Mission Beach is a small village along the Coral Sea in Queensland, Australia. The popular tourist destination of Dunk Island lies 4 km offshore.-History:...
shortly after midnight (local time
Time in Australia
Australia uses Standard time, i.e: the same well defined time for a region. The proper names of Australia's time zones are Australian Western Standard Time , Australian Central Standard Time , and Australian Eastern Standard Time...
) on 3 February. At that time, the large destructive core around the eye extended between Innisfail
Innisfail, Queensland
Innisfail is a town located in the far north of the state of Queensland, Australia. It is the major township of the Cassowary Coast and is well renowned for its sugar and banana industries, as well as for being one of Australia's wettest towns...
and Cardwell, Queensland
Cardwell, Queensland
Cardwell is a tropical coastal town in northeastern Queensland. It is located at the southern extremity of the Cassowary Coast. At the 2006 census, Cardwell had a population of 1,250. The Bruce Highway National Highway 1 and the North Coast railway line are the dominant transport routes;...
. Latest reports indicate that Yasi is the second costliest tropical cyclone in Australia's history after Cyclone Tracy, as well as the costliest without inflation and so far, Yasi has caused at least 3.5 billion (2011 USD) in damage. One death occurred due to asphyxiation in Ingham
Ingham
-People:* Albert Ingham, Mathematician* Alice Ingham, Roman Catholic nun and missionary.* Barrie Ingham, British actor* Benjamin Ingham, 18th Century Yorkshire Evangelist* Bernard Ingham, British journalist and former press secretary to Margaret Thatcher...
.
Tropical Low 15U
A low formed off the Western Australian coast on 8 February and drifted steadily west south west for the next few days. On 11 February, the Bureau of Meteorology identified the system as Tropical Low 15U and began monitoring the system for further development. Later that day, the JTWC began issuing advisories on the system under the name 14S. The storm was expected to reach minimal category 1 cyclone intensity (Australian scale) on the 12 February but high shear, cool sea temperatures and poor organisation saw the system stay as a low.Severe Tropical Cyclone Dianne
A low developed off the Western Australian coast on 11 February and strengthened on 15 February.The Bureau of Meteorology issued a Cyclone watch later in the day reported that a tropical low formed 350 kilometre NNW of Exmouth
Exmouth, Western Australia
-Further reading:* Western Australia. Ministry for Planning. Exmouth-Learmonth structure plan. Perth, W.A. : Western Australian Planning Commission...
. A Cyclone watch had been issue for the coastal communities between Onslow
Onslow, Western Australia
Onslow is a coastal town in the Pilbara region of Western Australia, north of Perth. It currently has a population of around 573 people and is in the Shire of Ashburton Local Government Area....
to Coral Bay. Late on 16 February, the low formed into Tropical Cyclone Dianne whilst 445 km NW of Exmouth. Dianne, as expected, intensified, and was upgraded to a Category 2 cyclone on 18 February whilst slowly moving towards the SSW. On 19 February the system intensified into a Category 3 severe tropical cyclone.
By late 21 February the system lost its strength as it moved into colder waters and was downgraded to a Category 1 Tropical Cyclone, and by 22 February it was classified as an ex-Tropical low.
Severe Tropical Cyclone Carlos
On 14 February the Tropical Cyclone Warning Centre (TCWC) in DarwinDarwin, Northern Territory
Darwin is the capital city of the Northern Territory, Australia. Situated on the Timor Sea, Darwin has a population of 127,500, making it by far the largest and most populated city in the sparsely populated Northern Territory, but the least populous of all Australia's capital cities...
reported that a tropical low formed near latitude 13.2S, longitude 130.7E, about 40 kilometre west southwest of Batchelor
Batchelor, Northern Territory
Batchelor is a town in the Northern Territory of Australia. The town is located in the Coomalie Shire Local Government Area, 98 kilometres south of the territory capital, Darwin...
. A severe weather warning was issued for northwest Darwin-Daly District
Daly River, Northern Territory
Daly River is the name of a river and a town in the Northern Territory of Australia. At the 2006 census, Daly River had a population of 468.- History :...
and the Tiwi Islands
Tiwi Islands
The Tiwi Islands are part of Australia's Northern Territory, north of Darwin where the Arafura Sea joins the Timor Sea. They comprise Melville Island and Bathurst Island, with a combined area of ....
. Heavy rain pounded the area on 15 February with reports of Marrara
Marrara, Northern Territory
Marrara is a northern suburb of the city of Darwin, Northern Territory, Australia.-History:Shown on Goyder's original surveys of Darwin in 1869 was the swamp between the suburb and the Darwin International Airport, but it, like Leanyer, is believed to be derived from an Aboriginal name for the...
recording 179.4 mm (7.1 in) and Darwin Airport 131 mm (5.2 in) of rain. This was later followed by 339.6 mm (13.4 in) of rain in just 24 hours, which is the highest 24-hour rainfall for the city on record.
On 16 February the slow moving system strengthened into Tropical Cyclone Carlos causing localised flooding and damage to homes, with fallen trees. Schools in Darwin, Darwin International Airport and East Arm Wharf were closed. After looping around the Darwin area overnight and back over land the system weakened on 17 February and BOM downgraded it to a Tropical low. A record three day total of 684.8 mm (27 in) rain was recorded at Darwin Airport due to the lingering of the system.
The system moved slowly southwest on 18 February moving towards the Northern Territory/Western Australian border with a possibility of restrengthening. The community of Daly River
Daly River, Northern Territory
Daly River is the name of a river and a town in the Northern Territory of Australia. At the 2006 census, Daly River had a population of 468.- History :...
received 442 mm (17.4 in) of rainfall. On 19 February the system passed into the Northern Kimberley region. Rainfall totals were not as large as in previous days. Wyndham
Wyndham, Western Australia
Wyndham is the oldest and northernmost town in the Kimberley region of Western Australia, located on the Great Northern Highway, northeast of Perth. It was established in 1885 as a result of a gold rush at Halls Creek, and it is now a port and service centre for the east Kimberley with a...
recorded 90 mm (3.5 in) while Kalumburu
Kalumburu, Western Australia
Kalumburu and Kalumburu Community are both bounded localities within the Shire of Wyndham-East Kimberley Western Australia. Kalumburu Community is the northernmost settlement in Western Australia...
recorded 80 mm (3.1 in) of rainfall.
In the early hours of 21 February the system returned to the open waters of the Indian Ocean
Indian Ocean
The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...
, causing it to redevelop back into a cyclone. The system was located 75 km (46.6 mi) northwest of Broome
Broome, Western Australia
Broome is a pearling and tourist town in the Kimberley region of Western Australia, north of Perth. The year round population is approximately 14,436, growing to more than 45,000 per month during the tourist season...
. The cyclone continued to track southwest at a relatively fast pace and produced a squall line
Squall line
A squall line is a line of severe thunderstorms that can form along or ahead of a cold front. In the early 20th century, the term was used as a synonym for cold front. It contains heavy precipitation, hail, frequent lightning, strong straight-line winds, and possibly tornadoes and waterspouts....
that generated four tornadoes in the mining town of Karratha which damaged 38 homes as well as numerous cars, buildings and a school. It also strengthened steadily to become a category 2 cyclone.
On 22 February the system moved parallel to the Pilbara coast. Varanus Island
Varanus Island
Varanus Island is the largest of the Lowendal Islands, an archipelago off the north west coast of Western Australia, near Karratha in the Pilbara region...
recorded 59 mm (2.3 in) of rainfall and the highest wind gusts in the area was 120 km/h (74.6 mph) at Bedout Island. The system became more organised and on 23 February the record rainfall amount of 283 mm (11.1 in) was recorded at Barrow Island
Barrow Island (Western Australia)
Barrow Island is a island located northwest off the coast of Western Australia. The island is the second largest in Western Australia after Dirk Hartog Island.-Discovery and early history:...
. The strongest gusts of 139 km/h (86.4 mph) recorded at Varanus Island. The cyclone crossed the North West Cape
North West Cape
North West Cape is a large peninsula of land in the north west coast of Western Australia. Cape Range runs down the spine of the peninsula and Ningaloo Reef runs along the western edge...
and lashed Onslow
Onslow, Western Australia
Onslow is a coastal town in the Pilbara region of Western Australia, north of Perth. It currently has a population of around 573 people and is in the Shire of Ashburton Local Government Area....
and Exmouth
Exmouth, Western Australia
-Further reading:* Western Australia. Ministry for Planning. Exmouth-Learmonth structure plan. Perth, W.A. : Western Australian Planning Commission...
with high winds up to 155 km/h (96.3 mph) and rain.
As Carlos moved away from the western coast of Australia on 24 February it strengthened into a Severe Tropical Cyclone.
Tropical Low 18U
On 25 February, the Tropical Cyclone Warning Centre (TCWC) in PerthPerth, Western Australia
Perth is the capital and largest city of the Australian state of Western Australia and the fourth most populous city in Australia. The Perth metropolitan area has an estimated population of almost 1,700,000....
reported that a tropical low formed estimated to be 75 kilometre west northwest of Kalumburu
Kalumburu, Western Australia
Kalumburu and Kalumburu Community are both bounded localities within the Shire of Wyndham-East Kimberley Western Australia. Kalumburu Community is the northernmost settlement in Western Australia...
and 445 kilometre northeast of Derby
Derby, Western Australia
Derby is a town in the Kimberley region of Western Australia. At the 2006 census, Derby had a population of 3,093. Along with Broome and Kununurra, it is one of only three towns in the Kimberley to have a population over 2,000...
and moving slowly southwest parallel to the north Kimberly coast. In the early hours of 28 February the tropical low moved inland from King Sound
King Sound
King Sound is a large gulf in northern Western Australia. It expands from the mouth of the Fitzroy River, one of Australia's largest watercourses, and opens to the Indian Ocean. It is about 120 km long, and averages about 50 km in width. The port town of Derby lies near the mouth of the...
. Heavy rainfall was reported on the Dampier Peninsula
Dampier Peninsula
The Dampier Peninsula is a peninsula located north of Broome and Roebuck Bay in Western Australia. It is surrounded by the Indian Ocean to the west and north, and King Sound to the east...
east and southeast of Port Hedland
Port Hedland, Western Australia
Port Hedland is the highest tonnage port in Australia and largest town in the Pilbara region of Western Australia, with a population of approximately 14,000 ....
, including Telfer
Telfer, Western Australia
Telfer is a minesite in the Pilbara region of Western Australia, within the Great Sandy Desert. Telfer was previously the state's most isolated town, located north-east of the state capital Perth...
and parts of the De Grey
De Grey, Western Australia
De Grey is a locality in the Pilbara region of Western Australia, around 75 km east of Port Hedland. Also within the locality is the De Grey homestead, and the De Grey River....
catchment. Derby recorded 83 mm (3.3 in) of rain while Camballin
Camballin, Western Australia
Camballin is a small town in the West Kimberley district of Western Australia. The town is located on the Camballin Station about 110 km south of Derby and between Derby and Fitzroy Crossing, with the homestead being situated in the town...
received 142 mm (5.6 in) and the aboriginal community of Looma
Looma Community, Western Australia
Looma is an Aboriginal community about 120 km south-east of Derby adjacent the Fitzroy River. At the 2006 census, Looma had a population of 393.-History:...
had 105 mm (4.1 in). The tropical low continued moving overland and the BOM issued their final advice on 28 February.
Tropical Low 21U
On 7 March, TCWC Brisbane reported that Tropical Low 21U had developed about 1200 kilometre to the west of Port VilaPort Vila
Port Vila is the capital and largest city of Vanuatu. Situated on the south coast of the island of Efate, in Shefa Province, the city population at last was 29,356, an increase of 55% on the previous census result . This suggests a 2007 population of about 40,000 or around 65% of the province's...
, Vanuatu
Vanuatu
Vanuatu , officially the Republic of Vanuatu , is an island nation located in the South Pacific Ocean. The archipelago, which is of volcanic origin, is some east of northern Australia, northeast of New Caledonia, west of Fiji, and southeast of the Solomon Islands, near New Guinea.Vanuatu was...
, in the Coral Sea
Coral Sea
The Coral Sea is a marginal sea off the northeast coast of Australia. It is bounded in the west by the east coast of Queensland, thereby including the Great Barrier Reef, in the east by Vanuatu and by New Caledonia, and in the north approximately by the southern extremity of the Solomon Islands...
. During that day, the low tracked eastwards, and gradually intensified. On 8 March it continued eastwards. Later that day, the low moved out of the Australian region and entered the South Pacific.
Tropical Low 23U (Cherono)
On 10 March TCWC Perth reported that Tropical Low 23U, had developed within TCWC Jakarta's area of responsibility about 1640 km (1,019.1 mi) to the east of Jakarta, Indonesia. Over the next couple of days the low remained slow moving. On 13 March, the low briefly moved into TCWC Perth's area of responsibility, before crossing 90°E and moving out of the Australian region and into the South-West Indian Ocean2010–11 South-West Indian Ocean cyclone season
The 2010–11 South-West Indian Ocean cyclone season was the least active tropical cyclone season in the South-West Indian Ocean on record. It began on November 1, 2010 and ended on April 30, 2011, dates which conventionally delimit the year in which most tropical cyclones form in the basin...
. It later developed into Tropical Storm Cherono.
Tropical Low 25U
On 26 March, Tropical Low 25U formed off the northern coast of Australia. By 31 March, the tropical low was reported to be north-west of Darwin and slowly moving towards the Kimberley region, which is already struggling to cope with severe flooding from previous storms. On 6 April, the tropical low dissipated completely.Tropical Low 27U
On 26 March, TCWC Perth reported that a weak tropical low had developed about 315 km (195.7 mi) to the northwest of the Cocos islands. Over the next couple of days the low moved towards the west and briefly moved into the South West Indian Ocean. However, on April 2, Tropical Low 27U dissipated completely over open waters.Tropical Cyclone Errol
A Tropical Low formed north of the Tiwi IslandsTiwi Islands
The Tiwi Islands are part of Australia's Northern Territory, north of Darwin where the Arafura Sea joins the Timor Sea. They comprise Melville Island and Bathurst Island, with a combined area of ....
on April 10 and developed slowly as it moved westwards. It was upgraded on the 15th of April and was named 'Errol'. Errol moved southward slowly, over the next couple of days. On April 20, Errol dissipated.
Storm names
TCWC Jakarta
TCWC Jakarta monitor Tropical Cyclones from the Equator to 10S and from 90E to 125E. Should a Tropical Depression reach Tropical Cyclone strength within Jakarta's Area of Responsibility then it will be assigned a name from the following list.| Anggrek | ||||
TCWC Port Moresby
Tropical cyclones that develop north of 10°S between 141°E and 160°E are assigned names by the Tropical Cyclone Warning Centre in Port MoresbyPort Moresby
Port Moresby , or Pot Mosbi in Tok Pisin, is the capital and largest city of Papua New Guinea . It is located on the shores of the Gulf of Papua, on the southeastern coast of the island of New Guinea, which made it a prime objective for conquest by the Imperial Japanese forces during 1942–43...
, Papua New Guinea
Papua New Guinea
Papua New Guinea , officially the Independent State of Papua New Guinea, is a country in Oceania, occupying the eastern half of the island of New Guinea and numerous offshore islands...
. Tropical cyclone formation in this area is rare, with no named tropical cyclones developing in it since 2007. As names are assigned in a random order the whole list is shown below.
Bureau of Meteorology
Since the start of the 2008–09, there has only been one list that the Bureau of MeteorologyBureau of Meteorology
The Bureau of Meteorology is an Executive Agency of the Australian Government responsible for providing weather services to Australia and surrounding areas. It was established in 1906 under the Meteorology Act, and brought together the state meteorological services that existed before then...
have assigned names to tropical cyclones from. However the Bureau of Meteorology still operates the various TCWCs in Perth
Perth, Western Australia
Perth is the capital and largest city of the Australian state of Western Australia and the fourth most populous city in Australia. The Perth metropolitan area has an estimated population of almost 1,700,000....
, Darwin
Darwin, Northern Territory
Darwin is the capital city of the Northern Territory, Australia. Situated on the Timor Sea, Darwin has a population of 127,500, making it by far the largest and most populated city in the sparsely populated Northern Territory, but the least populous of all Australia's capital cities...
& Brisbane
Brisbane
Brisbane is the capital and most populous city in the Australian state of Queensland and the third most populous city in Australia. Brisbane's metropolitan area has a population of over 2 million, and the South East Queensland urban conurbation, centred around Brisbane, encompasses a population of...
. They monitor all tropical cyclones that form within the Australian region, including tropical lows or tropical cyclones located within TCWC Jakarta's or TCWC Port Moresby's area of responsibility. The next name that will be used is Fina.
| Tasha | Vince | Zelia | Anthony | Bianca | Carlos | Dianne | Errol |
Season effects
|-!01U/02S !!Anggrek
|style="background:#"| || style="background:#"| ||style="background:#"| ||style="background:#"| || Cocos (Keeling) Islands || None || None || None ||
|-
! 02U/03S !! Abele
|style="background:#"| ||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 03U !! N/A
|style="background:#"| ||style="background:#"| || style="background:#"| ||style="background:#"| || Western Australia || $ || $ || None ||
|-
! 04U !! N/A
|style="background:#"| ||style="background:#"| || style="background:#"|||style="background:#"| || None || None || None || None ||
|-
! 05U/04P !! Tasha
|style="background:#"| || style="background:#"| || style="background:#"| || style="background:#"| || Queensland || Unknown|| Unknown|| None ||Damage from Tropical Cyclones Tasha and Anthony are not known as they both contributed to the 2010–11 Queensland floods
2010–2011 Queensland floods
A series of floods hit Australia, beginning in December 2010, primarily in the state of Queensland including its capital city, Brisbane. The floods forced the evacuation of thousands of people from towns and cities. At least seventy towns and over 200,000 people were affected. Damage initially was...
, which caused over A$ 30 billion.
|-
! 06U !! N/A
|style="background:#"| || style="background:#"| || style="background:#"| || style="background:#"| || Northern Territory, Western Australia || None || None || None ||
|-
! 07U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 08U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 09U/06S !! Vince
|style="background:#"|||style="background:#"| || style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 10U/07P !! Zelia
|style="background:#"| ||style="background:#"| || style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 11U/09P !! Anthony
|style="background:#"| || style="background:#"| ||style="background:#"| ||style="background:#"| || Queensland || Unknown || Unknown || None ||
|-
! 12U/10S !! Bianca
|style="background:#"||| style="background:#"| ||style="background:#"| ||style="background:#"| || Western Australia || Unknown || Unknown || 2||
|-
! 13U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 14U/11P !! Yasi
|style="background:#"| ||style="background:#"| || style="background:#"| || style="background:#"| || Solomon Islands, Australia || $ || $ || 1 ||
|-
! 15U/14S !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 16U/16S !! Dianne
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 17U/15S !! Carlos
|style="background:#"| || style="background:#"| ||style="background:#"| ||style="background:#"| || Northern Territory, Western Australia|| $|| $ || None ||
|-
! 18U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 19U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 20U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 21U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 22U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 23U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 25U/20S !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 26U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 27U/08R !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 28U !! N/A
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-
! 29U/21S !! Errol
|style="background:#"|||style="background:#"| ||style="background:#"| ||style="background:#"| || None || None || None || None ||
|-class="sortbottom"
|Colspan=2|
|}
See also
- List of Southern Hemisphere cyclone seasons
- Atlantic hurricane seasons: 20102010 Atlantic hurricane seasonThe 2010 Atlantic hurricane season was the third most active Atlantic hurricane season on record, tying with the 1887 Atlantic hurricane season, 1995 Atlantic hurricane season and the 2011 Atlantic hurricane season. It had the most number of named storms since the 2005 season and also ties with the...
, 20112011 Atlantic hurricane seasonThe 2011 Atlantic hurricane season is tied for the third most active season on record with 1887, 1995 and 2010. It began on June 1, 2011, and ended on November 30, 2011, however these dates conventionally delimit the period of each year when most tropical cyclones develop in the Atlantic basin... - Pacific hurricane seasons: 20102010 Pacific hurricane seasonThe 2010 Pacific hurricane season was the least active Pacific hurricane season, in terms of the number of named storms and hurricanes, on record, due to a moderate La Niña, unlike the 2010 Atlantic hurricane season, which was one of the most active on record...
, 20112011 Pacific hurricane seasonThe 2011 Pacific hurricane season is an ongoing, annual cycle of tropical cyclone formation. The season officially started on May 15, 2011, for the eastern Pacific, and started on June 1, 2011, for the central Pacific, both of which ended on November 30, 2011. These dates conventionally... - Pacific typhoon seasons: 20102010 Pacific typhoon seasonThe 2010 Pacific typhoon season was the least active Pacific typhoon season, in terms of the number of named storms and typhoons, on record, due to a moderate La Niña event...
, 20112011 Pacific typhoon seasonThe 2011 Pacific typhoon season was the time of the year in which tropical cyclones form in the Western Pacific Ocean. The season ran throughout 2011 with most tropical cyclones forming between May and November. The scope of this article is limited to the Pacific Ocean to the north of the equator... - North Indian Ocean cyclone seasons: 20102010 North Indian Ocean cyclone seasonThe 2010 North Indian Ocean cyclone season was a very active event in the annual cycle of tropical cyclone formation with some 8 depressions and 6 named storms, nearly above the average of 4-6 storms in the region due to a moderate La Niña...
, 20112011 North Indian Ocean cyclone seasonThe 2011 North Indian Ocean cyclone season is an event in the annual cycle of tropical cyclone formation. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and December, with peaks in May and November...