Meteorologists say a deadly tornado in North Dakota tornado this summer has been upgraded to an EF5, the strongest classification of tornado and the first on American soil in 12 years. The tornado on June 20 in Enderlin caused significant ... .
Meteorologists say 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. The June 20 twister killed three people and at its largest was over ... .
— A tornado that killed three people this summer in southeast North Dakota has been reclassified EF5, the most damaging level for a twister ... The minimum speed for an EF5 tornado is 201 mph ... The last EF5 tornado in the U.S.
The deadly North Dakota tornado on June 20 has been upgraded to an EF5, the strongest kind of tornado and the first one on American soil in twelve years ... .
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 ... .