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

A deadly tornado that tore across North Dakota this summer has been upgraded to an EF5 with winds over 200 mph, the strongest classification of tornado and the first on American soil in 12 years, ...

After over 12 years, the EF5 tornado drought in the U.S. has come to an end. A tornado that struck Enderlin, North Dakota, in June was just upgraded to an EF5. Find the details here.

The most rare and extreme form of tornado struck eastern North Dakota in June, but experts just determined how strong it really was.

Meteorologists said this week that a deadly tornado in North Dakota this summer has been upgraded to a top-of-the-scale EF5, and was the first on American soil in 12 years.

A tornado that killed three people in Enderlin, North Dakota, has been upgraded to an EF5 tornado. This is the first EF5 tornado in the United States in about 12 years. The tornado flipped rail cars, ...

WASHINGTON — An EF5 tornado struck North Dakota this year, the National Weather Service confirmed Monday, marking the first tornado of that strength in more than a decade on American soil. 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 ...