Tornadoes, particularly the strong ones, usually form in powerful thunderstorms called supercells. Supercells form best along boundaries with highly contrasting temperatures and/or moisture content. Florida's subtropical climate means that temperature contrasts are generally small, so especially powerful thunderstorms such as supercells have trouble forming, and when they do form they often have difficulty becoming intense enough to produce strong tornadoes.
There are mechanisms where a storm other than a supercell can produce a tornado, which are not uncommon in Florida, but such tornadoes rarely exceed EF1 strength.
Weak tornadoes typically last for only a few minutes, generally ranging from a few seconds to around 10 minutes. These tornadoes are usually short-lived and localized, causing less widespread damage compared to stronger tornadoes.
Thin tornadoes are typically weak and do not conjure much damage, while fat tornadoes are usually much more dangerous, and can grow to over mile in width. However, this is only the general trend. Some very large tornadoes have been relatively weak while a few very violent tornadoes have been relatively small.
Florida is in such a position that sea breezes from the Atlantic Ocean and the Gulf of Mexico converge. The converging warm, moist air rises and forms thunderstorms, which may spawn tornadoes. Subtropical storm systems and the southern ends of extratropical storm systems often trigger thunderstorms which are then fueled by the plentiful warm, moist air.
Strength is determined by wind speed, not size, in tornadoes. The Enhanced Fujita Scale categorizes tornadoes based on their estimated wind speeds and resulting damage. Tornado size can vary, with larger tornadoes usually associated with stronger wind speeds.
Tornadoes can vary in intensity, with wind speeds ranging from 65 mph for weak tornadoes to over 200 mph for violent tornadoes. The Enhanced Fujita Scale (EF-Scale) categorizes tornadoes from EF0 (weakest) to EF5 (strongest), based on observed damage and wind speeds. The most powerful tornadoes (EF4 and EF5) can cause catastrophic damage, leveling well-built houses and even lifting heavy objects like cars and trains.
On average, Florida experiences about 54 tornadoes per year. Tornadoes in Florida are mostly weak in intensity, but occasionally strong tornadoes can happen, especially during severe weather outbreaks.
Yes. Florida has a very high incidence of tornadoes, and Tampa has been hit a fair number of times. However, the tornadoes in Florida are generally not as strong as the ones in the Midwest.
As of April 16, 2013 Florida has already had 2 weak tornadoes. Tornadoes occur in Florida every year, and if the past is any indicator, we could expect a few dozen more.
Yes. There were two tornadoes near Pensacola, Florida associated with Camille. One was an F0 and the the was not rate, but was presumably weak.
About 89% of tornadoes are rated as weak (F0 or F1).
Most states have more than 6 tornadoes per year. Weak tornadoes are more common than most people think. Florida averages about 65 tornadoes per year. This is due to Florida's somewhat unique position. Over the Florida peninsula warm, moist air masses converge. This convergence, combined with intrusions of cooler air from further north means the Florida very frequently gets thunderstorms. In some cases these can spawn tornadoes.
There were 56 confirmed tornadoes in Florida in 2008.
Florida can have tornadoes at any time of year. But the greatest number of tornadoes in Florida happen in the summer.
It is difficult to determine, as until the 1990s we did not have an accurate count of weak tornadoes. The largest number of recorded weak tornadoes tornadoes in an outbreak would probably go to the Super Outbreak of April 25-28, 2011 with 264 tornadoes rated as weak. This outbreak also holds the record for most tornadoes overall at 349.
There were 39 tornadoes in Florida in 2011.
There were 37 recorded tornadoes in Florida in 2009.
There were 30 tornadoes in Florida in 2015.