Some might think the Enhanced Fujita (EF) Scale is basically the same as the original Fujita (F) Scale, but Big Country ...

You're all familiar with the Enhanced Fujita Scale or EF Scale, which became operational on February 1, 2007, is used to assign a tornado a 'rating' based on estimated wind speeds and related damage.

LEXINGTON, Ky. (WKYT) - For today’s Good Question, Alvin asks: Tornadoes are classified as EF 1, 2, 3, and ect. What does EF and the number mean? The EF stands for ...

SIOUX FALLS, S.D. (KELO) — With severe weather season in full swing, you’ll start to hear some terms being thrown around when describing certain events. Meteorologist Adam Rutt explains. This past ...

ROCHESTER, N.Y. – A recent reanalysis shows a powerful tornado, which struck in June near Enderlin, North Dakota, has officially been upgraded to an EF-5 on the Enhanced Fujita Scale. This is the ...

A deadly tornado that tore across southeastern North Dakota this summer has been upgraded to an EF5 with winds topping 200 mph (322 kph), the strongest classification of tornado and the first ...