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.
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 Fujita scale is a way to measure the intensity of a tornado. f5 is the most violent category. An f5 tornado has 261-318 mph winds.
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.
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.
There is no given size for an F5 tornado as tornado ratings are based on damage severity, not size. A tornado is rated F5 if well-built houses are blown clean off their foundations. F5 tornadoes have come in various sizes, ranging from as small as 100 yards to over 2 miles wide. That being said, F5 tornadoes are usually very large, averaging about half a mile wide.
It is unlikely. There has never been a recorded F5 tornado in Colorado.
No. Florida has never recorded an F5 or EF5 tornado.
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.
Tornadoes fluctuate in intensity. An F5 tornado is only at F5 strength for part of the time it is on the ground.
The most recent F5/EF5 tornado was the Moore, Oklahoma tornado of May 20, 2013.
In most cases, no and it does not have to be an F5. The average tornado, regardless of intensity, moves at about 35 mph. A cheetah can definitely run faster than this, but only for a short time as it will tire quickly. By contrast a tornado will generally maintain its speed for most of its existence, which for an F5 tornado, is usually for more than half an hour and often over an hour.
The rarest rating for a tornado is F5.
The Waco tornado was an F5.