[11] Though there may be some thunderstorms, they don't often become severe enough to spawn tornadoes. Most of the tornadoes here happen in the very eastern part of the state. [40], Tornadoes that are classified as EF4 and EF5 (or "violent tornadoes") on the Enhanced Fujita Scale only account for an average of two percent of all tornadoes in the United States each year. See more ideas about Tornado map, Map, Tornado. Hurricanes and other tropical storms can generate large numbers of tornadoes. During the winter months, tornadoes are usually spotted in the Southern area of the country, as well as states near the Gulf of Mexico. The Atlantic seaboard states can be affected too. 1 location in terms of tornado frequency, but the trend in many locations is down over the past 40 years.”. Tornado Alley is a colloquial term for the area of the United States where tornadoes are most frequent.. [26] The region was badly hit by the Palm Sunday Tornado Outbreak in April 1965 and by the Super Outbreak of April 1974. [15] However, Florida tornadoes are usually weak in comparison with those that strike the Plains and the Southern states – there have been only four reports of F4 strength tornadoes since 1950 and none of F5 strength. [15] Arizona and New Mexico experience regular summer thunderstorms during their monsoon season. [8], During the winter months of the year, tornadoes have been known to hit the Southern United States and Southeastern United States the most, but have hit other areas as well. On average, about 40 people die each year in the nine states that make up the southeastern U.S. Alabama tallies the highest death toll annually with an average of 14, according to data from the Storm Prediction Center.
[14], Tornadoes have been documented in every U.S. state (not including the non-state territories of Guam, the Virgin Islands, American Samoa, and Puerto Rico) at least once since 1950, although some regions and states are hit by tornadoes far more than others. [11] This is due to cold air moving southward reaching its southern limit of expansion, and stopping over the Gulf Coast. [33] On February 2, 2007, an EF3 tornado struck Lake County with 21 fatalities resulting – see 2007 Central Florida Tornadoes. “Regions in the Southeast and Midwest are closing the gap when it comes to the number of tornado reports,” said Northern Illinois University meteorologist Victor Gensini, who led the study. [26] Other outbreaks included the Tupelo-Gainesville tornado outbreak of April 1936, the 1908 Southeast tornado outbreak of April 1908 and the Candlestick Park Tornado of 1966. [45] Though the wind speed was over the F5 maximum, the tornado was not named the first ever F6 storm, as there was no F6 classification. [15] During the period 1950 to 2006, Florida reported 2,884 tornadoes according to NCDC figures. This F4 tornado struck the city on 9 June 1953 and killed 90 people.

[39] The states with the highest number of F5 and EF5 rated tornadoes since data was available in 1950 are Alabama and Oklahoma, each with seven tornadoes. [29], Areas further south – notably Pennsylvania and Maryland – and areas to the west of the Appalachians are more vulnerable to tornadoes. [20], The Midwestern states are very prone to tornado activity, as they are part of "Tornado Alley. © 2020 USA TODAY, a division of Gannett Satellite Information Network, LLC. [28] For the period 1950 to 2006, three hundred and fifty eight people were killed by tornadoes in Alabama, ranking the state third nationwide behind Texas (521) and neighboring Mississippi (404).

Until recently there was little hope of forecasting these systems. [48] This is not true. Overall,  more than 70 Americans nationwide are killed each year by tornadoes, based on data from 1985 to 2014. It was the deadliest single outbreak since the May 31, 1985 outbreak, which killed 76 across Ohio and Pennsylvania, as well claiming 12 victims in Ontario, Canada. Mar 8, 2018 - Explore Ephraim Edward Mejia's board "Tornado Map. [8] One notable recent example of a winter tornado outbreak was the 2008 Super Tuesday tornado outbreak on February 5 and February 6, 2008.
Other outbreaks included the Tupelo-Gainesville tornado outbreak of April 1936, the 1908 Southeast tornado outbreak of April 1908 and the Candlestick Park Tornado of 1966. A widespread and deadly tornado outbreak affected the Southeastern United States on Easter Sunday and Monday, April 12–13, 2020. [9] The outbreak was the deadliest of the modern NEXRAD doppler radar era, until the 2011 Super Outbreak killed over 348 people (324 of which were tornado-related). "Economic losses associated with tornadoes will continue to increase in future years," the study also warned, adding that "the combination of an increase in risk and exposure could lead to a threefold increase in tornado disaster potential.". [45] The National Weather Service also did a damage check, and found that the damage was that of an average F5 tornado. Iowa, Kansas, and Texas each are tied for second-most with six. [11] During the months of May and June, tornado activity is as its peak in the southern Great Plains.