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

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.

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.

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

The last recorded EF5 tornado was on May 20, 2013, in a town outside Oklahoma City, killing 24 people and injuring more than 200 others. That tornado tore through hundreds of homes, a school, hospital ...

Initially, this tornado was rated an EF3. But due to work from the Northern Tornadoes Project of Western University in ...

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, ...

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.

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 ...

NORTH DAKOTA Deadly tornado classified EF5 A deadly tornado that tore across southeastern North Dakota this summer has been ...