The following explanations will help you when the weather alerts are sounded.
Along with these definitions the Fujita Pearson Tornado Scale will give you an under-standing of the potential of the coming storm. Note the estimated damage done as the F rating goes up. The tornado which devastated Oklahoma City was an F-5.
F-0 - 40-72 mph, chimney damage, tree branches broken,
F-1 - 73-112 mph, mobile homes pushed off foundation or overturned.
F-2 - 113-I57 mph, considerable damage, mobile homes demolished, trees up-rooted.
F-3 - 158-205 mph, roofs and walls torn down, trains overturned, cars thrown.
F-4 - 207-260 mph, well-constructed walls leveled.
F-5 - 261-318 mph, homes lifted off their foundations and carried considerable distances, auto's thrown as far as 328 feet.
Our safe rooms have been tested and certified by an independent construction material testing laboratory by putting them against a static wind load up to 450 MPH (100 MPH stronger than the highest known twister).
Tornados can and do occur, anywhere when weather conditions create the right formula. Some tornadoes have been recorded with wind speeds over 300 MPH and staying on the ground for more than an hour. Due to the high winds, flying debris presents itself as one of the greatest dangers during tornadoes.
Yes, all of our units have been tested and certified to meet and exceed the FEMA 320. View test results below:
