An F5 tornado typically lasts for over half an hour, and sometimes over an hour.
In most cases an F5 tornado will be larger than an F1. However, tornado ratings are a measure of the strength of a tornado, not its size. F5 is the strongest category, and such tornadoes are usually very large, but a few have been fairly small. Conversely, F1 is the second lowest rating (F0 is the lowest) and such tornadoes are generally small, but some have been huge.
Theoretical winds for an F6 tornado are 319-379 mph. However, because tornado ratings are based on damage, the highest a tornado could ever be rated is F5. So the F6 rating is purely theoretical with no applications in the real world. On the enhanced scale there is no EF6 level theoretical or otherwise.
Tornado ratings are based on damage, so the wind speeds for any given rating are estimates. The original estimated wind speed range for an F5 tornado was 261-318 mph. This estimate is now believed to have been too high. Currently, a tornado with estimate winds in excess of 200 mph is rated EF5, though the damage inflicted is the same as that from an F5.
It is not known as we have not exactly tested this. The heaviest known object to have been lifted by a tornado was a 90 ton oil tank. The tornado that did this almost certainly reach F5 intensity.
An F5 tornado is the strongest category of tornado on the Fujita Scale of Tornado Intensity, which rates tornadoes from F0 to F5 based on damage. An F5 tornado causes total devastation, blowing houses clean off their foundations and throwing cars hundreds of yards. Wind estimates for F5 damage were originally put at 261-318 mph, but later analysis showed that this estimate was to high, ans was adjust to 201+ mph for the EF5 category on the Enhanced Fujita scale.
The last F5 tornado to hit Texas struck the town of Jarrell on May 27, 1997.
The last F5 or EF5 tornado in Iowa was on May 25, 2008 when a large tornado caused EF5 damage in the towns of Parkersburg and New Hartford, Iowa.
Assuming you mean the F5 tornado that touched down in Oklahoma on May 3, 1999, that tornado lasted 1 hour and 25 minutes.
It is unlikely. There has never been a recorded F5 tornado in Colorado.
No. Florida has never recorded an F5 or EF5 tornado.
The most recent F5/EF5 tornado was the Moore, Oklahoma tornado of May 20, 2013.
An F5 tornado does not form directly from an F1 tornado. Tornado intensity is determined by the Enhanced Fujita Scale based on wind speeds and damage. It is possible for a tornado to rapidly intensify due to various atmospheric conditions, leading to an increase in intensity from an F1 to an F5 tornado.
The Waco tornado was an F5.
No. There has never been an F5 tornado recorded in Colorado. It has had a handful of F4 tornadoes.
There is not given size for an F5 tornado as ratings are based on damage rather than size. Typical F5 damage is well constructed houses blown clean off their foundations.
Any tornado can be dangerous. An F5 tornado is extremely dangerous. Hit by the full force of an F5 tornado, even the strongest houses will be swept away. Many F5 tornadoes are quite large, capable of leveling whole neighborhoods and killing dozens in a matter of minutes.
To date there have been no F5 tornadoes in the Freedom area since 1950. If you are referring to the 1984 tornado, it was an F4.