A tornado that killed three people in North Dakota this summer was upgraded Monday to an EF5, the first such tornado in the U.S. in 12 years. Level 5 is the highest rating on the Enhanced Fujita scale ...

(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 ...

AUSTIN (KXAN) — A 12-year “drought” of EF5 tornadoes has ended, after the National Weather Service upgraded a tornado in North Dakota to EF5 status. The tornado touched down near Enderlin, North ...

A deadly tornado that tore across southeastern North Dakota this summer has been upgraded to an EF5 with winds topping 200 mph (322 kph), the strongest classification of tornado and the first on ...

ENDERLIN, N.D. (KSNW) – The first EF5 tornado in 12 years has officially been recorded. The National Weather Service has upgraded a tornado that struck southeastern North Dakota in June to an EF5 ...

WASHINGTON — An EF5 tornado struck North Dakota this year, the National Weather Service confirmed Monday, marking the first tornado of that strength in more than a decade on American soil. The ...

BISMARCK, ND (KXNET) — More than 20 tornadoes occurred across North Dakota during the severe weather outbreak and derecho event on June 20, earlier this year. One of these tornadoes has made history ...

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 ...