The most rare and extreme form of tornado struck eastern North Dakota in June, but experts just determined how strong it ...
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 confirmed on ...
Three people were killed in the tornado, which produced 210 mph winds, leveling homes and tossing fully-loaded box cars.
The National Weather Service said the EF5 twister in North Dakota packed winds stronger than 200 mph, underscoring risks that ...