Yankton, SD 08-21-2017

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Hail Map Yankton, SD 08-21-2017

Doppler radar detected Quarter size hail near Yankton, SD, Storm Lake, IA and Denison, IA on August 21, 2017. This hail storm was traveling ESE at 5 mph and the entire storm produced hail for roughly 7 hour(s). There were 6 spotter report(s) with reported max hail size of 1″ and an average hail size of 1″. We estimate that 42,862 buildings were in the affected area and the probability of hail DHI detected was significant. Based on this information, you can expect to see minor damage to vehicles, tile roofs and crops in isolated areas (Impact Rating 2).

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Vermillion, SD 08-20-2017

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Hail Map Vermillion, SD 08-20-2017

Doppler radar detected Half Dollar size hail near Vermillion, SD, Beresford, SD and Atkinson, NE on August 20, 2017. This hail storm was traveling E at 35 mph and the entire storm produced hail for roughly 2 hour(s). There were 1 spotter report(s) with reported max hail size of 1.5″ and an average hail size of 1.32″. We estimate that 17,214 buildings were in the affected area and the probability of hail DHI detected was significant. Based on this information, you can expect potential damage to fruit, crops and vegetation, but not much else (Impact Rating 1).

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Rock Valley, IA 06-30-2017

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Hail Map Rock Valley, IA 06-30-2017

Doppler radar detected Quarter size hail near Rock Valley, IA, Moorhead, IA on June 30, 2017. This hail storm was traveling E at 24 mph and the entire storm produced hail for roughly 1 hour(s). Radar reported a max hail size of 1″ and an average hail size of 1″. We estimate that 8,240 buildings were in the affected area and the probability of hail DHI detected was significant. Based on this information, you can expect potential damage to fruit, crops and vegetation, but not much else (Impact Rating 1).

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Gretna, NE 06-30-2017

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Hail Map Gretna, NE 06-30-2017

Doppler radar detected Quarter size hail near Gretna, NE, Sioux Center, IA and Orange City, IA on June 30, 2017. This hail storm was traveling ESE at 21 mph and the entire storm produced hail for roughly 3 hour(s). Radar reported a max hail size of 1.75″ and an average hail size of 1.21″. We estimate that 18,886 buildings were in the affected area and the probability of hail DHI detected was significant. Based on this information, you can expect potential damage to fruit, crops and vegetation, but not much else (Impact Rating 1).

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Sioux City, IA 06-29-2017

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Hail Map Sioux City, IA 06-29-2017

Doppler radar detected Ping Pong Ball size hail near Sioux City, IA, Norfolk, NE and Yankton, SD on June 29, 2017. This hail storm was traveling ESE at 20 mph and the entire storm produced hail for roughly 2 hour(s). There were 36 spotter report(s) with reported max hail size of 4.25″ and an average hail size of 1.68″. We estimate that 33,435 buildings were in the affected area and the probability of hail DHI detected was significant. Based on this information, you can expect widespread, severe damage to tiled roofs, automobiles, and aircraft over highly populated areas. Risk of personal injury is also high, and is often accompanied by other severe weather events (wind, tornadoes).

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