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 in a dozen years, meteorologists said Monday. The June 20 ...

ENDERLIN, N.D. (AP) - 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 confirmed on American soil in a dozen ...

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 eastern North Dakota in June and killed three people was ...

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 confirmed on American soil in a dozen years, meteorologists said ...

Severe Weather Awareness Week continues with the Day 3 topic: tornadoes and tornado safety.

According to the National Weather Service, tornadoes are the second leading cause of death from severe weather in the United States. In this web story, we’ll look at how tornadoes form, how strong they can get,

For many years, we have associated the most dangerous tornadoes in a region known as “Tornado Alley,” a large region of the Great Plains that includes the states of Texas, Oklahoma, Kansas, and Nebraska.

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, meteorologists said Monday. The tornado on June 20 in ...