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.

Three people were killed in the tornado, which produced 210 mph winds, leveling homes and tossing fully-loaded box cars.

The first EF5 tornado was confirmed in North Dakota, here's a history and the last F5 tornadoes to hit Michigan.

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