Storm chasing is broadly defined when the designed pursuit of a thunderstorm, regardless of motive. The human world health organization storm chases is referred to as the storm chaser, or even only the chaser. When witnessing the tornado is the biggest objective for virtually all chasers, numerous delight within seeing cumulonimbus structure, watching a barrage of hail and lightning, and seeing what skyscapes unfold.

Storm chasing is all but universally a amateur endeavor, by using motives ordinarily given toward photographing the storm for personalized reasons. Though scientific operate is occasionally cited as the goal, such operate is well-nigh universally visionary except for even victims participating inside a university or government task. Numerous chasers besides come storm spotters, reporting their observations of hazardous atmospheric condition to the authorities. Storm chasers are non paid to chase, by owning the exception of television media crew around certain television markets, streaming stringers & lensman, & a handful of postgraduate meteorologists and professors. Two or even three enterpriser, even so, handle to sell storm videos & pictures or work "chase tour" services. Fiscal is restored come comparatively meagre given a expenses by using virtually all chasers outlay further than it absorb.

A super number 1 storm chaser is usually in agreement to become Roger Jensen (1933–2001), a Fargo, North Dakota native who pursued american Minnesota storms from Lake Park around 1951 ([http://www.stormtrack.org/jensen/] [http://www.onthefront.ws/jensen.htm]). David Hoadley (1938– ) began chasing North Dakota storms in 1956, systematically applying information from either front yard upwind agents. Bringing the food and drug administration chasing to the forefront was Neil Ward (1913–1972) who in the 1950s and 1960s enlisted the facilitate of Oklahoma state police to survey storms. His function pioneered modern storm spotting & mass produced institutional chasing the reality.

Within 1972 the University of Oklahoma in cooperation with a National Severe Storms Laboratory began the Tornado Intercept Task. This was a number one big-shell chase activity sponsored by an institution. It culminated around the brilliant profits inside 1973, with a Union City, Oklahoma tornado providing a foundation for tornado morphology. A design produced a foremost legion of seasoned storm chasers, by using Hoadley's Stormtrack magazine bringing the community together within 1977. Storm chasing so reached popular culture inside terzetto major spirt: around 1978 with the broadcast of the section on the television program In Search Of; in 1985 with a infotainment on the PBS series Nova; and inside Could 1996 with the theatrical release of Twister which provided an action-packed but comically distorted glimpse at a hobby. Various tv program, increased coverage of severe weather condition per media, & a Internet stand likewise contributed to a incubation of storm chasing since the mid-late 1990s. The acutely increase in the general public impetuously mobile in their local locality shopping for tornadoes is also largely attributable to these factors.

Storm chasers come virtually all active inside May and June across the Great Plains of the United States and Canada, with possibly two or three 100 souls active in any given day. Occasionally organized chasing efforts use at times likewise begun inside south-east Australia, with a large successes inside November and December. The handful of people come likewise known to exist as chasing inside more countries, including Israel, Italy, Spain, France, Belgium, Germany, Finland, the Netherlands, and Switzerland; though many population trek to the Awesome Plains of North America from these and more countries around a world (especially the United Kingdom). When this article has focused in tornado & electric storm chasing, there is a little total of people chasing hurricanes, as well.