F1 Tornado Wind Speed
F1 moderate tornado 73 112 mph moderate damage.
F1 tornado wind speed. Photo is typical f1 damage. Mobile homes pushed off foundations or overturned. The fujita scale introduced in 1971 as a means to differentiate tornado intensity and path area assigned wind speeds to damage that were at best educated guesses. Peels surface off roofs.
Wind speed 73 112 mph 33 50 meters per sec roof shingles peeled back moving automobiles pushed off roads. F2 significant tornado. Different wind speeds may cause similar looking damage from place to place even from building to building. Peel surface off roofs.
The lower limit is the beginning of hurricane wind speed. Wind speed 113 157 mph 51 70 meters per sec. Without a thorough engineering analysis of tornado damage in any event the actual wind speeds needed to cause that damage are unknown. Moving autos pushed off the roads.
Attached garages may be destroyed. Fujita and others recognized this immediately and intensive engineering analysis was conducted through the rest of the 1970s. The lower limit is the beginning of hurricane wind speed. Moving autos pushed off the roads.
Mobile homes pushed off foundations or overturned.