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Areas of Hazardous Weather This Weekend

A series of cold fronts from North Pacific storms will bring periods of gusty winds, low elevation rainfall, and high elevation snow to the Pacific Northwest this weekend into next week. Heavy to excessive rainfall may produce areas of flooding over southern Texas this weekend. Read More >

Overview

Thunderstorms rapidly developed around midnight on June 11th in central South Dakota, producing large hail up to 2.5 inches in size. As the storms moved to the east-northeast, they evolved into a line and produced a large area of wind damage across east central South Dakota.

The hardest hit areas were across Clark, Codington, Hamlin, and Deuel counties, where winds were estimated to reach 80 to 90 mph.  The storms continued east into Minnesota and eventually Wisconsin and Upper Michigan, producing damaging winds into the afternoon hours.  

Storm Reports across SD on June 11, 2017
Storm reports across eastern South Dakota and central Minnesota during the morning of June 11, 2017. 
Radar Loop of the storms developing and moving east through east-central South Dakota. Image
Radar image of storms as they strike the Watertown area at 5:30 am on June 11th, 2017 GOES-16 Infrared Satellite Imagery at 4:50 am. (Preliminary, Non-Operational Data)
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