The deadly tornado that ripped through rural Enderlin, North Dakota, in June has been upgraded from EF4 to an EF5, making it the strongest tornado and first EF5 in the United States in more than a ...

A rare, monstrous EF5 tornado that struck the United States more than three months ago was the first of its kind in more than a decade, experts announced Monday. A tornado that roared through part of ...

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

For the first time in more than a decade, the United States has recorded an EF5 tornado, which is the strongest classification. But the newly confirmed rating may have implications that stretch even ...

For the first time in 12 years, the United States has recorded an EF5 tornado, the most powerful type of twister on the Enhanced Fujita wind and damage scale, the National Weather Service confirmed ...