An F5 tornado forms in much the same way a any other tornado is.
For general tornado formation first, a condition called wind shear, in which the speed or direction of the wind changes with altitude. If the shear is strong enough it can essentially tilt a thunderstorm, this separates the updraft and downdraft of the thunderstorm, preventing them from interfering with one another. This allows the storm to become stronger and last longer.
Additionally, if the wind shear is strong enough it can start the air rolling in what is called horizontal vorticity. This horizontal vorticity can then be turned vertical by a thunderstorm's updraft. When this happens, the thunderstorm may start rotating. The rotation is especially strong in an updraft called a mesocyclone. If the storm intensifies rapidly enough, a relatively warm downdraft called a rear-flank downdraft or RFD can wrap around the bottom part of the mesocyclone. This can then tighten and intensify its rotation and bring it down to the ground to produce a tornado.
An F5 tornado is simply the most extreme case of this where a supercell has an enormous amount of energy, is well organized, and wind shear is very strong.
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.
An F5 tornado typically lasts for over half an hour, and sometimes over an hour.
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.
It is unlikely. There has never been a recorded F5 tornado in Colorado.
No. Florida has never recorded an F5 or EF5 tornado.
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 most recent F5/EF5 tornado was the Moore, Oklahoma tornado of May 20, 2013.
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.
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.
F4 and F5 are the two strongest categories of tornado on the Fujita scale. A damage based scale which rates tornadoes from F0 to F5. An F4 tornado will reduce most houses to piles of rubble. An F5 tornado will completely annihilate almost any house and wipe it clean off its foundation. Winds in an F5 can exceed 300 mph.
F5 is the strongest category of tornado which rates tornadoes from F0 to F5 based on damage. An F5 tornado can sweep a house clean off its foundation.
No, there is not
Amazingly, there were no deaths in the Elie tornado, which is unusual for an F5. The one house which suffered F5 damage was unoccupied at the time it was struck.