The nation's longest "drought" between EF5 tornadoes has come to an end, scientists from the National Weather Service ...

A storm in California brings a nasty mix of foul weather, including the chances for flash flooding, isolated tornadoes and ...

making it the strongest tornado and first EF5 in the United States in more than a decade. Why the upgrade nearly four months ...

The United State's hasn't had an EF-5 tornado touch down since 2013 however, on Monday, the National Weather Service Grand ...

The most rare and extreme form of tornado struck eastern North Dakota in June, but experts just determined how strong it really was.

SIOUX CITY (KTIV) - A June tornado in North Dakota has been upgraded to an EF-5, ending a 12-year streak without the most ...

At least 32 people were killed in Kentucky, Missouri and Virginia after storms and tornadoes tore through the region as part of an extreme weather outbreak on May 16, "leaving behind a trail of ...

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.

A pair of storm systems could fuel heavy rain and flooding across sections of the nation from the Desert Southwest to the East Coast this week, and some areas are bracing for the possibility of ...

The first EF-5 tornado to hit the United States in 12 years was confirmed by the National Weather Service on Monday. It ...