National Weather Service United States Department of Commerce


A low pressure system and attached cold front triggered storms in a ripe environment across southern North Dakota during the mid-afternoon, and these storms quickly became strong to severe. Through the remainder of the afternoon and evening, these storms maintained their strong to severe intensity and even became destructive in some areas as they drifted southeast across the border into South Dakota. Extensive crop and property damage resulted from up to 80 mph wind gusts and/or large hail to baseball sized plus across portions of Corson, Dewey, Walworth, Potter, Sully, Hughes and Lyman Counties. Two rounds of severe storms about an hour apart affected those roughly from Blunt to Lower Brule to Iona.

2.3" Hail one mile west of Blunt, SD (Credit Derek Thompson)
2.3" Hail one mile west of Blunt, SD (Credit Derek Thompson)
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