1680 The first confirmed tornado in America kills a servant at Cambridge, Massachusetts.
1840 The Great Natchez Tornado strikes Natchez, Mississippi killing 317 people. It is the second deadliest tornado in United States history.
1880 An F4 tornado strikes Marshfield, Missouri, killing 99 people and injuring 100.
1893 The small town of Pomeroy, Iowa, is nearly destroyed by a tornado that kills 71 people and injures 200.
1899 New Richmond Tornado: the eighth deadliest tornado in U.S. history kills 117 people and injures around 200.
1926 The deadliest November tornado outbreak in U.S. history strikes on Thanksgiving day. 27 twisters of great strength are reported in the Midwest, including the strongest November tornado, an estimated F4, that devastates Heber Springs, Arkansas. There are 51 deaths in Arkansas alone, 76 deaths and over 400 injuries in all.
1948 The first successful tornado forecast predicts that a tornado will strike Tinker Air Force Base, Oklahoma.
1953 In Warner Robins, Georgia, an F4 tornado kills 18 people.
1953 Flint-Worcester tornado outbreak sequence: A tornado hits Flint, Michigan, and kills 115. This is the last tornado to claim more than 100 lives.
1955 In the United States, a night time F5 tornado strikes the small city of Udall, Kansas, killing 80 and injuring 273. It is the deadliest tornado to ever occur in the state and the 23rd deadliest in the U.S.
1986 A tornado is broadcast live on KARE television in Minnesota when the station's helicopter pilot makes a chance encounter.
1987 A rare, class F4 tornado rips through Edmonton, Alberta, killing 27 people and causing $330 million in damage.
1996 Severe thunderstorms and a tornado in Bangladesh kill 600 people.
1998 A tornado sweeps through Dantan in India killing 250 people and injuring 3000 others.
1999 Wolverhampton, England is hit by storms which include a tornado. The area is hit again with severe storms on August 1.
2004 The U.S. town of Hallam, Nebraska, is wiped out by a powerful F4 tornado (part of the May 2004 tornado outbreak sequence) that broke a width record at an astounding {{convert|2.5|mi}} wide, which kills one resident.
2006 Over 60 tornadoes break out; hardest hit is in Tennessee with 29 people killed.
2007 Tornadoes break out across the southern United States, killing at least 20; eight of the deaths are at a high school in Enterprise, Alabama.
2007 Greensburg, Kansas is almost completely destroyed by a 1.7mi wide EF-5 tornado.
2007 An EF2 tornado touches down in Kings County and Richmond County, New York State, the most powerful tornado in New York to date and the first in Brooklyn since 1889.
2008 The Late-May 2008 tornado outbreak sequence unleashes 235 tornadoes, including an EF4 and an EF5 tornado, between 22 May and 31 May 2008. The tornadoes struck 19 states and one Canadian province.