Storm was a lightly carbonated, caffeinated lemon

Lemon

The lemon is both a small evergreen tree native to Asia, and the tree's ellipsoidal yellow fruit. The fruit is used for culinary and non-culinary purposes throughout the world – primarily for its juice, though the pulp and rind are also used, mainly in cooking and baking...

-lime

Lime (fruit)

Lime is a term referring to a number of different citrus fruits, both species and hybrids, which are typically round, green to yellow in color, 3–6 cm in diameter, and containing sour and acidic pulp. Limes are a good source of vitamin C. Limes are often used to accent the flavors of foods and...

 flavored soft drink

Soft drink

A soft drink is a non-alcoholic beverage that typically contains water , a sweetener, and a flavoring agent...

. It was test market

Test market

A test market, in the field of business and marketing, is a geographic region or demographic group used to gauge the viability of a product or service in the mass market prior to a wide scale roll-out...

ed by PepsiCo

PepsiCo

PepsiCo Inc. is an American multinational corporation headquartered in Purchase, New York, United States, with interests in the manufacturing, marketing and distribution of grain-based snack foods, beverages, and other products. PepsiCo was formed in 1965 with the merger of the Pepsi-Cola Company...

 in some areas of the U.S. in 1998 as part of Pepsi's attempt to become more competitive in the U.S. clear lemon-lime soda market, one which was dominated by The Coca-Cola Company

The Coca-Cola Company

The Coca-Cola Company is an American multinational beverage corporation and manufacturer, retailer and marketer of non-alcoholic beverage concentrates and syrups. The company is best known for its flagship product Coca-Cola, invented in 1886 by pharmacist John Stith Pemberton in Columbus, Georgia...

's Sprite

Sprite (soft drink)

Sprite is a transparent, lemon-lime flavored , caffeine free soft drink, produced by the Coca-Cola Company. It was introduced in the United States in 1961. This was Coke's response to the popularity of 7 Up, which had begun as "Bib-Label Lithiated Lemon-Lime Soda" in 1929...

. Storm differed from Sprite in that its flavor was uniquely subtle and had a very slight bitterness to it.

Although Storm was only offered in test markets, Pepsi included it in their marketing of Star Wars Episode I: The Phantom Menace

Star Wars Episode I: The Phantom Menace

Star Wars Episode I: The Phantom Menace is a 1999 American epic space opera film written and directed by George Lucas. It is the fourth film to be released in the Star Wars saga, as the first of a three-part prequel to the original Star Wars trilogy, as well as the first film in the saga in terms...

, and offered cans with characters in both Storm and Light storm varieties.

Pepsi already had an existing offering, lemon-lime Slice

Slice (soft drink)

Slice is a line of fruit-flavored soft drinks manufactured by PepsiCo and introduced in 1984, with the lemon-lime flavor replacing Teem.Varieties of Slice have included apple, fruit punch, grape, passionfruit, peach glaze, Mandarin orange, pineapple, strawberry, Cherry Cola, "Red", Cherry-Lime, and...

, although it, like Sprite, was caffeine-free.

Pepsi dropped Storm while it was still in the test market stage. Test markets included Denver, Indianapolis

Indianapolis

Indianapolis is the capital of the U.S. state of Indiana, and the county seat of Marion County, Indiana. As of the 2010 United States Census, the city's population is 839,489. It is by far Indiana's largest city and, as of the 2010 U.S...

, Omaha

Omaha

Omaha may refer to:*Omaha , a Native American tribe that currently resides in the northeastern part of the U.S. state of Nebraska-Places:United States* Omaha, Nebraska* Omaha, Arkansas* Omaha, Georgia* Omaha, Illinois* Omaha, Texas...

, San Francisco, Milwaukee, and Philadelphia. Lemon-lime Slice was dropped in favor of a new formula, marketed as Sierra Mist

Sierra Mist

Sierra Mist is a lemon-lime flavored caffeine-free soft drink, introduced by PepsiCo in 2000 and rolled out nationally in the United States in 2003. PepsiCo owns the rights to the similar 7 Up brand outside the U.S...

in 2000.