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

Tornadoes rated EF5 are inconceivable. They raze the Earth with winds exceeding 200 mph, sweeping foundations bare and ...

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

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

A deadly tornado in Enderlin, North Dakota, on June 20 has been upgraded to an EF5, marking the first EF5 tornado in the ...

After 12 years, the U.S. has its first EF5 tornado. Meteorologist Andrew Stutzke breaks down why this could mean other ...

This tornado, which knocked a train off its tracks, ends the 12-year 'drought' of EF5 tornadoes since the Moore, Oklahoma ...

Meteorologists said this week that a deadly tornado in North Dakota this summer has been upgraded to a top-of-the-scale EF5, ...

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

ENDERLIN, N.D. — A tornado that killed three people this summer in southeast North Dakota has been reclassified EF5, the most ...

The storm, which killed three people and tossed train cars hundreds of feet, was nearly a mile wide and carved a 12-mile path ...

A deadly tornado that tore across southeastern North Dakota this summer has been upgraded to an EF5 with winds topping 200 ...