Initially, this tornado was rated an EF3. But due to work from the Northern Tornadoes Project of Western University in ...

A powerful tornado struck Enderlin, North Dakota, on June 20, causing significant damage and leading to a rare EF5 ...

Tornado experts upgraded the deadly June 20 North Dakota twister to the rarest, strongest rating: EF5. With winds over 210 mph, it's the first in the U.S. in years.

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

The National Weather Service said the EF5 twister in North Dakota packed winds stronger than 200 mph, underscoring risks that ...

The Enderlin tornado on June 20 was classified as an EF-5 with estimated winds up to 266 mph, making it one of the strongest ...

Graphic images of utter devastation from the EF-5 tornado that slammed into Moore, Okla., are a stark reminder of the power of cyclonic storms in the Great Plains to destroy virtually all above-ground ...

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.

This photo shows the upper part of the water tornado model. The acrylic glas tank has a diameter of 50 centimetres and is illuminated with LED strips. The water forms a vortex whose surface shape ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. As if they aren’t already facing enough, ...