Winter Storm, Corson
- When
- April 14, 2:30 PM CST to April 15, 11:00 AM CST
- Where
- Corson forecast zone
- Reported by
- COOP Observer
- Coordinates
- 45.709, -101.197 (the zone’s center; the record gives no point)
A strong upper level low pressure area brought widespread heavy snowfall to central and parts of northeast South Dakota. This early spring storm brought 6 to 14 inches of heavy snow to the area.
Every event with a place to put it; 19 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS ABR wrote it up.
A strong upper level low pressure area brought widespread heavy snowfall to central and parts of northeast South Dakota. This early spring storm brought 6 to 14 inches of heavy snow to the area. The heavy wet snow caused a lot of travel problems along with a few accidents. Some snowfall amounts included, 6 inches at Gann Valley, Kennebec, Ipswich, Turton, Mobridge, Roscoe, and McLaughlin; 7 inches at Pollock, Groton, McIntosh, Miller, Mission Ridge, and Mellette; 8 inches at Blunt, Onaka, Selby, Murdo, and Timber Lake; 9 inches at Claremont, Gettysburg, Bowdle, 9 NW Britton; 10 inches at Faulkton; 11 inches at Onida, Ree Heights, and Artas. Locations with a foot or more of snowfall included, 12 inches 12 SSW Harrold, 23 N Highmore, and Orient; 13 inches 14 NNE Isabel and Eureka with 14 inches at Eagle Butte.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Aberdeen, SD wrote its last area forecast discussion before the first event at Apr 13, 2:33 PM CST, 23 hours 57 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
19 winter storm. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2011Every state in 2011This day in weather historyWarnings in South Dakota, April 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 298998, 299009, 299012, 299013, 299014, 299029, 299033, 299015, 299016, 299035, 299036, 299038, 299023, 299040, 299045, 299051, 299059, 299056, 299062.