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Storm Activity›South Dakota Storm Activity›Dewey County, SD
South Dakota · Official NOAA Storm Data

Dewey County Hail Map & Storm Reports

Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Nov 1, 2026

Has it hailed in Dewey County, South Dakota recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 30 hail reports with hail up to 1.75", among 104 severe weather events logged here in the last 12 months, together with 74 high-wind reports with gusts up to 80 mph. The most recent recorded storm activity was on Sep 28, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

Map of Dewey County, South Dakota showing the county boundary and surrounding cities
Dewey County, South Dakota. Map © Mapbox © OpenStreetMap · County boundary: US Census Bureau.

Dewey County hail map

Where hail and high-wind reports clustered across Dewey County over the last 12 months. Heat shows report density and significance, not radar.

104
Events (12 mo)
30
Hail
74
Wind
0
Tornado
1.75"
Max hail
80
Max wind (mph)
Sep 28, 2026
Most recent

What the radar showed

Radar snapshot during the Aug 24, 2026 hail event near 7 WNW Swan Creek Rec Ar, Dewey County, South Dakota, with NWS warning polygons
NEXRAD radar at the moment of the Aug 24, 2026 hail event (1.75") near 7 WNW Swan Creek Rec Ar. Outlined polygons are the storm-based warnings exactly as issued by the National Weather Service. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Storm exposure for an address in Dewey County

Get a free report in your folder. A city is enough if you do not have a street.

Storm log — the official record, day by day

Events older than 30 days, as recorded by the National Weather Service and Storm Prediction Center. Excerpts are quoted directly from official warnings and verified reports.

Monday, September 28, 2026

1 NWS warning — hail up to 0.5"

“At 732 AM MDT, Doppler radar was tracking a strong thunderstorm over Little Moreau Rec Area, or near Timber Lake, moving northeast at 30 mph. Hazard: Wind gusts up to 50 mph and half inch size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. The strong thunderstorm will be near...”

NWS severe weather mention · Dewey County

Sunday, September 27, 2026

4 NWS warnings — hail up to 0.5"

NEXRAD radar during the Sunday, September 27, 2026 storm activity in Dewey County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 856 AM CDT /756 AM MDT/, Doppler radar was tracking a strong thunderstorm 5 miles northwest of Mission Ridge, or 26 miles southeast of Eagle Butte, moving east at 15 mph. Hazard: Wind gusts up to 40 mph and half inch size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. The strong thunderstorm will be near...”

NWS severe weather mention · Dewey County

“At 728 AM MDT, Doppler radar was tracking a strong thunderstorm 8 miles southeast of Parade, or 13 miles east of Eagle Butte, moving east at 20 mph. Hazard: Wind gusts up to 40 mph and half inch size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible.”

NWS severe weather mention · Dewey County

Tuesday, September 15, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph. WHERE...Corson and Dewey Counties. WHEN...Until 6 AM MDT early this morning. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

Monday, September 14, 2026

6 NWS warnings — hail up to 0.5", wind gusts up to 55 mph

NEXRAD radar during the Monday, September 14, 2026 storm activity in Dewey County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“WHAT...West winds 25 to 35 mph with gusts up to 55 mph expected. WHERE...Corson and Dewey Counties. WHEN...Until 1 AM MDT Tuesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

“WHAT...West winds 25 to 35 mph with gusts up to 55 mph expected. WHERE...Corson and Dewey Counties. WHEN...From 11 AM this morning to midnight MDT tonight. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

Sunday, September 13, 2026

2 NWS warnings — wind gusts up to 50 mph

“WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. WHERE...Corson and Dewey Counties. WHEN...From 11 AM to 9 PM MDT Monday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

“WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. WHERE...Corson and Dewey Counties. WHEN...From 11 AM to 9 PM MDT Monday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

Saturday, September 5, 2026

1 NWS warning — hail up to 0.5"

“At 409 PM CDT /309 PM MDT/, Doppler radar was tracking an area of strong thunderstorms 7 miles northwest of Mission Ridge, or 24 miles southeast of Eagle Butte, moving northeast at 25 mph. Hazard: Wind gusts up to 40 mph and half inch size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible.”

NWS severe weather mention · Dewey County

Sunday, August 30, 2026

1 SPC verified storm report · 1 NWS warning — hail up to 0.25", wind gusts up to 66 mph

“Mesonet station TIMS2 Timber Lake (SD Mesonet). (ABR)”

SPC verified report · 1 SW Timber Lake

“At 607 PM MDT, Doppler radar was tracking an area of strong thunderstorms extending from 9 miles north of Firesteel to 20 miles south of Lantry, or extending from 11 miles northwest of Timber Lake to 20 miles south of Lantry, moving east at 45 mph. Hazard: Wind gusts of 50 to 55 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects.”

NWS severe weather mention · Dewey County

Monday, August 24, 2026

1 SPC verified storm report · 2 NWS warnings — hail up to 1.75"

NEXRAD radar during the Monday, August 24, 2026 storm activity in Dewey County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Hail started after 7 pm... and continued until about 7:30 pm. (ABR)”

SPC verified report · 7 WNW Swan Creek Rec Ar

“At 515 PM MDT, Doppler radar was tracking a strong thunderstorm 8 miles south of Ridgeview, or 19 miles east of Eagle Butte, moving east at 20 mph. Hazard: Wind gusts up to 50 mph and half inch size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. The strong thunderstorm will be near...”

NWS severe weather mention · Dewey County

Tuesday, August 18, 2026

1 NWS warning — wind gusts up to 50 mph

“At 1051 PM CDT /951 PM MDT/, Doppler radar was tracking a line of showers extending from 10 miles west of Isabel to 27 miles west of Brown Church, or extending from 25 miles northwest of Lantry to 41 miles south of Lantry, moving east at 35 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. The shower will be near...”

NWS severe weather mention · Dewey County

Monday, August 17, 2026

1 SPC verified storm report — wind gusts up to 60 mph

“no hail... strong winds: estimated 60mph... had 1 inch of rain. Time estimated by radar. (ABR)”

SPC verified report · 1 SSW Lantry

Wednesday, August 12, 2026

1 NWS warning — hail up to 0.75"

“At 603 PM CDT /503 PM MDT/, Doppler radar was tracking a strong thunderstorm over Whitlocks Bay Rec Area, or 13 miles west of Gettysburg, moving east at 15 mph. Hazard: Wind gusts up to 40 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. The strong thunderstorm will be near...”

NWS severe weather mention · Dewey County

Monday, August 3, 2026

1 NWS warning — wind gusts up to 50 mph

“...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT /9 PM CDT/ THIS EVENING DUE TO WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF CENTRAL AND NORTH CENTRAL SOUTH DAKOTA... AFFECTED AREA...Portions of central and north central South Dakota. TIMING...Until 9 PM CDT /8 PM MDT/ this evening. WINDS...North winds 25 to 35 mph with gusts up to 50 mph.”

NWS severe weather mention · Dewey County

Monday, July 27, 2026

1 SPC verified storm report — wind gusts up to 68 mph

“Mesonet station LTMS2 Lantry 5NNW (SD Mesonet). (ABR)”

SPC verified report · 6 NNW Lantry

Saturday, July 25, 2026

3 SPC verified storm reports · 2 NWS warnings — hail up to 0.5", wind gusts up to 76 mph

NEXRAD radar during the Saturday, July 25, 2026 storm activity in Dewey County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Mesonet station LTMS2 Lantry 5NNW (SD Mesonet). (ABR)”

SPC verified report · 6 NNW Lantry

“Mesonet station EGBS2 Eagle Butte 8ENE (SD Mesonet). (ABR)”

SPC verified report · 1 E Parade

Sunday, July 19, 2026

1 SPC verified storm report · 1 NWS warning — hail up to 0.25", wind gusts up to 58 mph

“Mesonet station 293 Timber Lake (SDDOT). (ABR)”

SPC verified report · 1 NE Timber Lake

“At 813 PM CDT /713 PM MDT/, Doppler radar was tracking an area of strong thunderstorms extending from 10 miles north of Mahto to 6 miles southwest of Trail City, or extending from 11 miles northeast of Mclaughlin to 14 miles east of Timber Lake, moving east at 45 mph. Hazard: Wind gusts of 50 to 55 mph and pea size hail.”

NWS severe weather mention · Dewey County

Tuesday, July 7, 2026

1 NWS warning — hail up to 0.75"

“At 624 AM MDT, Doppler radar was tracking a strong thunderstorm near Little Moreau Rec Area, or near Timber Lake, moving northeast at 30 mph. Hazard: Wind gusts up to 50 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Dewey County

Monday, June 29, 2026

2 NWS warnings — hail up to 0.75"

“At 229 AM MDT, Doppler radar was tracking a strong thunderstorm 7 miles east of White Horse, or 19 miles southeast of Timber Lake, moving north at 55 mph. Hazard: Wind gusts up to 50 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Dewey County

“At 204 AM MDT, Doppler radar was tracking a strong thunderstorm 7 miles east of Parade, or 13 miles east of Eagle Butte, moving north at 45 mph. Hazard: Wind gusts up to 50 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Dewey County

Saturday, June 27, 2026

5 NWS warnings — hail up to 0.25", wind gusts up to 55 mph

NEXRAD radar during the Saturday, June 27, 2026 storm activity in Dewey County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 925 PM CDT/825 PM MDT/, trained weather spotters reported strong thunderstorms along a line extending from near Eagle Butte to 13 miles south of Ridgeview to Mission Ridge to 6 miles northwest of Van Metre. Movement was east at 30 mph. Hazard: Wind gusts of 50 to 55 mph. been reported with these thunderstorms in western Stanley County.”

NWS severe weather mention · Dewey County

“WHAT...Southeast winds 25 to 35 mph with gusts up to 50 mph. WHERE...Portions of central and north central South Dakota. WHEN...Until 7 PM CDT /6 PM MDT/ this evening. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

Thursday, June 18, 2026

2 NWS warnings — wind gusts up to 55 mph

NEXRAD radar during the Thursday, June 18, 2026 storm activity in Dewey County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 1016 PM CDT/916 PM MDT/, Doppler radar was tracking strong thunderstorms along a line extending from near Selfridge to near Mclaughlin to near Glencross. Movement was east at 40 mph. Hazard: Wind gusts of 50 to 55 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”

NWS severe weather mention · Dewey County

“At 1111 PM CDT/1011 PM MDT/, Doppler radar was tracking gusty showers along a line extending from Timber Lake to 9 miles southwest of Ridgeview to 8 miles northeast of Hayes. Movement was east at 45 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”

NWS severe weather mention · Dewey County

Tuesday, June 16, 2026

2 NWS warnings — wind gusts up to 55 mph

NEXRAD radar during the Tuesday, June 16, 2026 storm activity in Dewey County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 1030 PM CDT/930 PM MDT/, trained weather spotters reported a strong thunderstorm near Bear Creek, or 7 miles northeast of Lantry, moving southeast at 55 mph. Hazard: Wind gusts of 50 to 55 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”

NWS severe weather mention · Dewey County

“WHAT...Northwest winds 30 to 40 mph with gusts up to 50 mph expected. WHERE...Corson and Dewey Counties. WHEN...From 9 AM to 8 PM MDT Wednesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

Monday, June 15, 2026

1 NWS warning — hail up to 0.25"

“At 158 PM CDT/1258 PM MDT/, Doppler radar was tracking strong thunderstorms along a line extending from near Greenway to near Selby to Laplant. Movement was east at 40 mph. Hazard: Wind gusts of 50 to 55 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Dewey County

Monday, June 8, 2026

1 SPC verified storm report — wind gusts up to 65 mph

“Mesonet station TIMS2 Timber Lake (SD Mesonet). (ABR)”

SPC verified report · 1 SW Timber Lake

Sunday, June 7, 2026

2 NWS warnings — hail up to 0.5", wind gusts up to 50 mph

“WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected. WHERE...Campbell, Corson, Dewey, Edmunds, McPherson, and Walworth Counties. WHEN...From noon CDT /11 AM MDT/ today to 8 PM CDT /7 PM MDT/ this evening. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

“At 1049 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from Walker to 6 miles south of Klein Ranch to 7 miles west of Green Grass. Movement was east at 40 mph. Hazard: Wind gusts of 50 to 55 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible.”

NWS severe weather mention · Dewey County

Saturday, June 6, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...Southeast winds 25 to 35 mph with gusts up to 50 mph expected. WHERE...Corson and Dewey Counties. WHEN...From noon today to 11 PM MDT this evening. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

Wednesday, June 3, 2026

2 SPC verified storm reports — hail up to 1"

“Report from mPING: Quarter (1.00 in.). Time adjusted from radar. (ABR)”

SPC verified report · 2 NE White Horse

Thursday, May 14, 2026

4 NWS warnings — wind gusts up to 50 mph

“AFFECTED AREA...In Minnesota, Traverse and Big Stone. In South Dakota, Corson, Campbell, McPherson, Brown, Marshall, Roberts, Walworth, Edmunds, Day, Dewey, Potter, Faulk and Grant. WINDS...West 20 to 30 mph with gusts up to 50 mph. RELATIVE HUMIDITY...As low as 17 percent. IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.”

NWS severe weather mention · Dewey County

“Strong wind gusts up to 50 mph are expected to persist through the afternoon hours today. Localized stronger wind gusts of more than 50 mph will be possible as the result of sprinkles or brief showers moving through this morning into the afternoon. This will lead to patchy to areas of blowing dust and reduced visibilities between 1 to 3 miles.”

NWS severe weather mention · Dewey County

Wednesday, May 13, 2026

10 NWS warnings — wind gusts up to 50 mph

“AFFECTED AREA...In South Dakota, Corson and Dewey. WINDS...West 25 to 35 mph with gusts up to 50 mph. RELATIVE HUMIDITY...As low as 14 percent. IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.”

NWS severe weather mention · Dewey County

“AFFECTED AREA...In South Dakota, Corson and Dewey. WINDS...West 25 to 35 mph with gusts up to 50 mph. RELATIVE HUMIDITY...As low as 14 percent. IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.”

NWS severe weather mention · Dewey County

Thursday, April 23, 2026

3 NWS warnings — wind gusts up to 60 mph

“WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. WHERE...Campbell, Corson, Dewey, Edmunds, McPherson, and Walworth Counties. WHEN...Until 7 PM CDT /6 PM MDT/ this evening. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

“WHAT...West winds 30 to 40 mph with gusts up to 55 mph expected. WHERE...Campbell, Corson, Dewey, Edmunds, McPherson, and Walworth Counties. WHEN...From 11 AM CDT /10 AM MDT/ this morning to 7 PM CDT /6 PM MDT/ this evening. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

Wednesday, April 22, 2026

6 NWS warnings — hail up to 0.88", wind gusts up to 55 mph

NEXRAD radar during the Wednesday, April 22, 2026 storm activity in Dewey County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 748 PM CDT/648 PM MDT/, Doppler radar was tracking strong thunderstorms along a line extending from 9 miles south of Intersection of Highway 63 and BIA Road 8 to near Bunker to 8 miles north of Belvidere. Movement was northeast at 50 mph. Hazard: Wind gusts of 50 to 55 mph. Dry lightning Impact: Gusty winds could knock down tree limbs and blow around unsecured objects.”

NWS severe weather mention · Dewey County

“At 1132 PM CDT/1032 PM MDT/, Doppler radar was tracking strong thunderstorms along a line extending from near Ridgeview to Swiftbird Day School to near Cottonwood Lake Near Agar. Movement was northeast at 30 mph. Hazard: Wind gusts of 50 to 55 mph and nickel size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible.”

NWS severe weather mention · Dewey County

Saturday, April 11, 2026

1 NWS warning — wind gusts up to 55 mph

“At 1032 PM CDT/932 PM MDT/, Doppler radar was tracking gusty outflow wind from a couple of showers along a line extending from Milesville to near Ottumwa to near Midland to 7 miles north of Corn Creek. Movement was northeast at 40 mph. Hazard: Wind gusts of 50 to 55 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”

NWS severe weather mention · Dewey County

Wednesday, April 8, 2026

3 NWS warnings — wind gusts up to 55 mph

“WHAT...Northwest winds 30 to 40 mph with gusts up to 55 mph. WHERE...Corson and Dewey Counties. WHEN...Until 6 PM MDT this evening. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

“WHAT...Northwest winds 30 to 40 mph with gusts up to 50 mph expected. WHERE...Corson and Dewey Counties. WHEN...Until 6 PM MDT this evening. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

Tuesday, April 7, 2026

2 NWS warnings — wind gusts up to 50 mph

“WHAT...West winds 30 to 40 mph with gusts up to 50 mph expected. WHERE...Corson and Dewey Counties. WHEN...From 9 AM to 6 PM MDT Wednesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

“WHAT...West winds 30 to 40 mph with gusts up to 50 mph expected. WHERE...Corson and Dewey Counties. WHEN...From 9 AM to 6 PM MDT Wednesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

Thursday, March 12, 2026

5 NWS warnings — wind gusts up to 80 mph

“WHAT...Northwest winds 45 to 55 mph with gusts up to 80 mph expected. WHERE...Portions of central and north central South Dakota. WHEN...Until 1 AM CDT /midnight MDT/ Friday. IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.”

NWS severe weather mention · Dewey County

“AFFECTED AREA...In South Dakota, Corson, Campbell, McPherson, Walworth, Edmunds, Dewey, Potter, Faulk, Stanley, Sully, Hughes, Hyde, Hand, Jones, Lyman and Buffalo. WINDS...West 45 to 55 mph with gusts up to 80 mph. RELATIVE HUMIDITY...20 to 35 percent across south central South Dakota. 35 to 50 percent over north central South Dakota.”

NWS severe weather mention · Dewey County

Wednesday, March 11, 2026

5 NWS warnings — wind gusts up to 65 mph

“The National Weather Service in Aberdeen has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon CDT /11 AM MDT/ to 9 PM CDT /8 PM MDT/ Thursday. The Fire Weather Watch is no longer in effect. AFFECTED AREA...In South Dakota, Corson, Campbell, McPherson, Walworth, Edmunds, Dewey, Potter, Faulk, Stanley, Sully, Hughes, Hyde, Hand, Jones, Lyman and Buffalo.”

NWS severe weather mention · Dewey County

“AFFECTED AREA...In South Dakota, Corson, Campbell, McPherson, Walworth, Edmunds, Dewey, Potter, Faulk, Stanley, Sully, Hughes, Hyde, Hand, Jones, Lyman and Buffalo. WINDS...West 30 to 40 mph with gusts up to 65 mph. RELATIVE HUMIDITY...Down to between 20 and 35 percent. IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.”

NWS severe weather mention · Dewey County

Tuesday, March 10, 2026

2 NWS warnings — wind gusts up to 55 mph

“WHAT...Northwest winds 30 to 40 mph with gusts up to 55 mph possible. WHERE...Portions of central and north central South Dakota. WHEN...From Thursday afternoon through late Thursday night. IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.”

NWS severe weather mention · Dewey County

“WHAT...Northwest winds 30 to 40 mph with gusts up to 55 mph possible. WHERE...Portions of central and north central South Dakota. WHEN...From Thursday afternoon through late Thursday night. IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.”

NWS severe weather mention · Dewey County

Wednesday, February 18, 2026

5 NWS warnings — wind gusts up to 65 mph

“WHAT...West winds 30 to 40 mph with gusts up to 65 mph. WHERE...Buffalo, Hand, Hughes, Hyde, Jones, Lyman, Stanley, Sully, Dewey, and Potter Counties. WHEN...Until noon CST /11 AM MST/ today. IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.”

NWS severe weather mention · Dewey County

“WHAT...Northwest winds 35 to 45 mph with gusts up to 60 mph. WHERE...Buffalo, Hand, Hughes, Hyde, Jones, Lyman, Stanley, Sully, Dewey, and Potter Counties. WHEN...Until noon CST /11 AM MST/ today. IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.”

NWS severe weather mention · Dewey County

Tuesday, February 17, 2026

3 NWS warnings — wind gusts up to 55 mph

“WHAT...West winds 25 to 35 mph with gusts up to 55 mph. WHERE...Portions of central and north central South Dakota. WHEN...Until noon CST /11 AM MST/ Wednesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

“WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. WHERE...Portions of central and north central South Dakota. WHEN...From 9 PM CST /8 PM MST/ this evening to noon CST /11 AM MST/ Wednesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Dewey County

Friday, January 16, 2026

1 NWS warning — wind gusts up to 55 mph

“Wind gusts will generally remain below 60 mph through the evening hours. A Winter Weather Advisory remains in effect until 12 AM CST /11 PM MST/ this evening. Wind gusts ranging from 35 to 55 mph this evening with areas of light snow and blowing snow.”

NWS severe weather mention · Dewey County

Thursday, December 18, 2025

1 NWS warning — wind gusts up to 75 mph

“WHAT...Northwest winds 40 to 50 mph with gusts up to 75 mph. WHERE...Campbell, Corson, Dewey, Potter, and Walworth Counties. WHEN...Until 3 PM CST /2 PM MST/ this afternoon. IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.”

NWS severe weather mention · Dewey County

Wednesday, December 17, 2025

2 NWS warnings — wind gusts up to 75 mph

“WHAT...Northwest winds 40 to 50 mph with gusts up to 75 mph expected. WHERE...Campbell, Corson, Dewey, Potter, and Walworth Counties. WHEN...From midnight CST /11 PM MST/ tonight to 3 PM CST /2 PM MST/ Thursday. IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.”

NWS severe weather mention · Dewey County

“WHAT...Northwest winds 40 to 50 mph with gusts up to 70 mph expected. WHERE...Campbell, Corson, Dewey, Potter, and Walworth Counties. WHEN...From midnight CST /11 PM MST/ tonight to 3 PM CST /2 PM MST/ Thursday. IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.”

NWS severe weather mention · Dewey County

Today's severe weather outlook

Storm Prediction Center Day 1 convective outlook — national severe weather risk map for today
Storm Prediction Center Day 1 convective outlook: categorical severe weather risk for today, updated several times daily. Source: NOAA/NWS Storm Prediction Center.

Common questions

When was the last severe storm in Dewey County, SD?

The most recent recorded event was on Sep 28, 2026. Official NWS and SPC records show 104 severe weather events in Dewey County over the last 12 months. Exact dates and locations for recent storms are available in the app with a free account.

Did it hail in Dewey County recently?

Yes — 30 hail reports in the last 12 months, with hail up to 1.75" recorded. The hail map above shows where reports clustered; the storm log lists each day.

How do I see hail history for a specific address in Dewey County?

Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property, including the most recent 30 days — county-level pages like this one only tell part of the story.

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Proudly AI-powered. Honestly sourced. IDOLCheck is built by HailyAI. Every storm event, magnitude, radar snapshot, and date on this page is deterministic — retrieved directly from official NOAA, National Weather Service (NWS), and Storm Prediction Center (SPC) storm records through HailyAPI and displayed exactly as reported. Quoted warning and report text is always attributed to its official source. Where the surrounding copy is not a direct quote, it was generated with AI assistance from that same verified storm data and reviewed and approved by humans before publication. AI organizes and presents the record — it never invents storm data.
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