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 ...

Nikki Nolan is a meteorologist for CBS News and Stations. She graduated from Metropolitan State University of Denver with a Bachelor of Science degree in Meteorology and has worked in national weather ...

The more than decade-long EF5 tornado drought has come to an end. A tornado that struck Enderlin, North Dakota, on June 20 has been upgraded to an EF5, according to the National Weather Service in ...

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 ...

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 ...

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 ...