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, ...

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

(CNN) — 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 ...

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.

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.

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 confirmed on ...

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