The National Weather Service said the EF5 twister in North Dakota packed winds stronger than 200 mph, underscoring risks that ...

The nation's longest "drought" between EF5 tornadoes has come to an end, scientists from the National Weather Service ...

Meteorologists say a deadly tornado in North Dakota this summer has been upgraded to a top-of-the-scale EF5, and was the ...

The first EF5 tornado was confirmed in North Dakota, here's a history and the last F5 tornadoes to hit Michigan.

The United State's hasn't had an EF-5 tornado touch down since 2013 however, on Monday, the National Weather Service Grand ...

Preliminary ratings for the twister came in at EF3. Rafferty says the specific damage that led to the EF5 rating ended up ...

Three people were killed in the tornado, which produced 210 mph winds, leveling homes and tossing fully-loaded box cars.

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

In the immediate aftermath of a tornadic storm, the National Weather Service compiles damage reports from the public, ...

New forensic damage analysis confirms Enderlin, ND tornado exceeded 210 MPH winds, ending the longest streak without an EF-5 ...