Fujita scale Facts for Kids

Fujita scale
F0	F1	F2	F3	F4	F5

The Fujita scale is a scale used for rating tornado strength, based on the damage tornadoes cause on human-built buildings and vegetation. The official Fujita scale category is determined by meteorologists (and engineers) after a ground and/or aerial damage inspection; also including analysis of available sources such as eyewitness accounts and damage images and/or videos. It was replaced with the Enhanced Fujita scale in the United States in February 2007.

Scale	Wind speed^*		Relative frequency	Common Damage Path Width (meters)	Example of Damage
Scale	mph	km/h	Relative frequency	Common Damage Path Width (meters)	Example of Damage
F0	40–72	64–116	38.9%	10 - 50	Small damage. Some damage to chimneys; branches broken off trees; sign boards damaged.
F1	73–112	117–180	35.6%	30 - 150	Medium damage. The lower limit is the beginning of hurricane wind speed; peels surface off roofs; mobile homes pushed or rolled over; moving cars and trucks pushed off the roads; garages may be destroyed.
F2	113–157	181–253	19.4%	110 - 250	Fairly bad damage. Roofs come off frame houses; mobile homes destroyed; big trees snapped or uprooted.
F3	158–206	254–332	4.9%	200 - 500	Bad damage. Roofs and some walls come off well-made houses; trains rolled over; most trees in forest uprooted; skyscrapers twisted and damaged; heavy cars lifted off the ground and thrown.
F4	207–260	333–418	1.1%	400 - 900	Very bad damage. Well-made houses leveled; buildings and other things with weak foundations blown away very far; skyscrapers and highrises destroyed.
F5	261–318	419–512	<0.1%	1100 ~	Worst damage. Strong frame houses lifted off foundations and thrown very far away which are soon destroyed; trees debarked; strong reinforced concrete structures badly damaged.

Other F0 Rated Tornadoes: Waterspout

Fujita scale facts for kids

See also