EF5 vs. F5: Abilene meteorologists explain how tornado ratings evolved

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

First EF5 tornado to strike the US in over a decade just confirmed by experts

The most rare and extreme form of tornado struck eastern North Dakota in June, but experts just determined how strong it really was.
FOX 9 Minneapolis-St. Paul on MSN

Deadly North Dakota tornado upgraded to EF5, the first in US in 12 years

ENDERLIN, N.D. (FOX 9) - A deadly tornado in Enderlin, North Dakota, on June 20 has been upgraded to an EF5, marking the first EF5 tornado in the United States in 12 years.
WTAE-TV

EF5 tornado that killed 3 in North Dakota was the nation's first in 12 years

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