Tornadoes are rated from F0 to F5 on the Fujita scale, based on wind speed and damage. The scale was developed by Theodore Fujita of the University of Chicago. - F0: Light damage, wind under 73 mph.

Fairfield County only have been hit with F0 and F1 tornadoes One of Ohio's deadliest tornadoes was about an hour and a half away from Lancaster LANCASTER — The Midwest is over a month into tornado ...

The tornado season has gone for a long and fairly quiet run, but someone has finally asked about the rating scale for tornado intensity. That is often referred to as the F scale. The F comes from a ...

On May 15th, 1968, a surface low pressure system swept across Iowa bringing with it severe weather across the country. 39 tornadoes touched down, stretching from Minnesota to Mississippi. Here is the ...

MADISON, Wis. -- Starting immediately, the National Weather Service La Crosse office will adopt the EF-U (Unknown) rating as an acceptable rating for tornadoes that touch down in parts of Wisconsin, ...