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

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

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

It was the strongest classification of tornado and the first confirmed on American soil in a dozen years, meteorologists said ...

A powerful tornado struck Enderlin, North Dakota, on June 20, causing significant damage and leading to a rare EF5 ...

The June 20 tornado near Enderlin, North Dakota, has been upgraded to EF5, the first in the US since 2013. With winds over ...

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

Weather experts in the U.S. reassessed that rare, deadly ‘Tornado’ that killed 3 in North Dakota and struck the United States ...

A 12-year "drought" of EF5 tornadoes has ended, after the National Weather Service upgraded a tornado in North Dakota to EF5 ...

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