This is dependent upon a few factors. There are different levels of intensity/size of tornadoes, and what the tornado is capable of or currently destroying, also speed varies.
The scale of intensity and potential damage is as followed:
F-0: 40-72 mph, chimney damage, tree branches broken
F-1: 73-112 mph, mobile homes pushed off foundation or overturned
69% of all tornadoes are F0-F1.
These tornadoes cause less than 5% of all tornado-related deaths
The average lifetime of the weak tornado is 1-10 minutes
F-2: 113-157 mph, considerable damage, mobile homes demolished, trees
F-3: 158-205 mph, roofs and walls torn down, trains overturned, cars thrown
29% of all tornadoes are F2-3. These tornadoes cause nearly 30% of
all tornado deaths and may last as long as 20 minutes.
F-4: 207-260 mph, well-constructed walls leveled
F-5: 261-318 mph, homes lifted off foundation and carried considerable
distances, autos thrown as far as 100 meters
Only 53 F-5 tornadoes have been measure to date in the United States
since 1950 while Canada has had only 1 official F5 tornado.
(a list can be found at http://www.spc.noaa.gov/faq/tornado/f5torns.html ) ”
Measurements and list from:
Click here to cancel reply.
Sorry,At this time user registration is disabled. We will open registration soon!
Don't have an account? Click Here to Signup
© Copyright GreenAnswers.com LLC