The Enhanced Fujita Scale is used to determine the severity of tornadoes: from an EF-0, the weakest, to an EF-5, the strongest. Wind speeds and damage are the main components to rating a storm.

After a tornado, surveyors examine the damage left behind to figure out how fast the twister was moving. The EF Rating is based on a 6-point scale of EF-0 through EF-5. An EF-0 is the weakest a ...

VINA, Ala. (WAFF) - An EF-0 tornado touched down in Vina on Jan. 5, the National Weather Service confirmed Tuesday. NWS officials said the tornado began along Highway 23, where it shattered a window ...

According to the weather agency, a trained spotter and footage ... tornado’s wind peak and rating are both unknown, the news release said. “The preliminary determination is that this was an EF ...