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EF-3 Tornadoes, Hurricane Winds, and Flash Floods Devastate U.S. States

EF-3 Tornadoes, Hurricane Winds, and Flash Floods Devastate U.S. States Overnight on June 21, a powerful derecho thunderstorm swept across North Dakota and western Minnesota, leaving behind destruction, casualties, and emergency declarations. Eastern parts of North Dakota were hit especially hard. EF-3 Tornadoes, Hurricane Winds, and Flash Floods Devastate U.S. States EF-3 Tornadoes, Hurricane Winds, and Flash Floods Devastate U.S. States EF-3 Tornadoes, Hurricane Winds, and Flash Floods Devastate U.S. States