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

Brown 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 Brown County, South Dakota recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 14 hail reports with hail up to 2", among 73 severe weather events logged here in the last 12 months, together with 59 high-wind reports with gusts up to 84 mph. The most recent recorded storm activity was on Aug 30, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

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

Brown County hail map

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

73
Events (12 mo)
14
Hail
59
Wind
0
Tornado
2"
Max hail
84
Max wind (mph)
Aug 30, 2026
Most recent

What the radar showed

Radar snapshot during the Jul 24, 2026 hail event near 3 SSE Westport, Brown County, South Dakota, with NWS warning polygons
NEXRAD radar at the moment of the Jul 24, 2026 hail event (2") near 3 SSE Westport. 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 Brown 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.

Sunday, August 30, 2026

1 SPC verified storm report — hail up to 1.5"

“Report and photo relayed via Facebook. Time estimated by Radar. (ABR)”

SPC verified report · 4 NE Verdon

Monday, August 24, 2026

1 SPC verified storm report — wind gusts up to 63 mph

Tuesday, August 11, 2026

1 NWS warning — hail up to 0.75"

“At 559 PM CDT, Doppler radar was tracking a strong thunderstorm 5 miles northeast of Spring Creek Colony, or 17 miles northeast of Leola, moving southeast at 30 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 · Brown County

Saturday, July 25, 2026

4 SPC verified storm reports — wind gusts up to 72 mph

NEXRAD radar during the Saturday, July 25, 2026 storm activity in Brown 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.

“Weatherlink station 3.2 east of Groton. (ABR)”

SPC verified report · 2 E Groton

“ASOS station KABR Aberdeen Rgnl AP. (ABR)”

SPC verified report · 1 SSE Aberdeen Regional

Friday, July 24, 2026

4 SPC verified storm reports — hail up to 2", wind gusts up to 60 mph

NEXRAD radar during the Friday, July 24, 2026 storm activity in Brown 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.

“Photo sent of 2 inch hail 10 miles north of Aberdeen. Time estimated by radar. (ABR)”

SPC verified report · 3 SSE Westport

“Law enforcement relayed a report of estimated 60-70 mph wind and quarter sized hail at 118th Street and US 281. Report relayed by Brown County EM. (ABR)”

SPC verified report · 2 NNW Westport

Sunday, July 19, 2026

1 NWS warning — hail up to 0.25"

“At 1035 PM CDT, Doppler radar was tracking an area of strong thunderstorms extending from 18 miles north of Hecla to 6 miles north of Frederick, or extending from 27 miles northwest of Britton to 24 miles northeast of Leola, moving southeast at 45 mph. Hazard: Wind gusts up to 50 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects.”

NWS severe weather mention · Brown County

Friday, July 10, 2026

1 NWS warning — wind gusts up to 55 mph

“At 1232 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from Opitz Lake to near Andover to near Warner to near Cravens Corner. Movement was southeast 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 · Brown County

Thursday, July 9, 2026

1 NWS warning — hail up to 0.5"

“At 1125 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Rutland to 7 miles northwest of Westwood Colony to Forbes to near Venturia. Movement was southeast 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 · Brown County

Tuesday, July 7, 2026

8 SPC verified storm reports · 1 NWS warning — hail up to 0.25", wind gusts up to 74 mph

NEXRAD radar during the Tuesday, July 7, 2026 storm activity in Brown 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.

“KABR ASOS Station reported a peak wind gust of 68 miles per hour. (ABR)”

SPC verified report · 1 SSE Aberdeen Regional

“Mesonet station AWMS2 Aberdeen 10WSW (SD Mesonet). (ABR)”

SPC verified report · 4 ESE Mina

Monday, June 29, 2026

2 SPC verified storm reports · 7 NWS warnings — hail up to 1", wind gusts up to 64 mph

NEXRAD radar during the Monday, June 29, 2026 storm activity in Brown 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...North winds 30 to 35 mph with gusts up to 50 mph. WHERE...Brown County. WHEN...Until 2 PM CDT this afternoon. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Brown County

“WHAT...North winds 25 to 35 mph with gusts up to 50 mph expected. WHERE...Edmunds, Faulk, McPherson, Brown, and Spink Counties. WHEN...Until 2 PM CDT this afternoon. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Brown County

Sunday, June 28, 2026

2 SPC verified storm reports · 2 NWS warnings — hail up to 0.25", wind gusts up to 75 mph

NEXRAD radar during the Sunday, June 28, 2026 storm activity in Brown 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 GOTS2 Groton 9 NNE (SD Mesonet). (ABR)”

SPC verified report · 7 S Claremont

“At 116 AM CDT, trained weather spotters reported strong thunderstorms along a line extending from 6 miles west of Ludden to near Putney. Movement was northeast 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 · Brown County

Monday, June 15, 2026

1 SPC verified storm report

“Public report on Facebook... with photo of a dumpster having been blown over by the winds. Time estimated by radar. (ABR)”

SPC verified report · Groton

Tuesday, June 9, 2026

8 SPC verified storm reports — wind gusts up to 78 mph

NEXRAD radar during the Tuesday, June 9, 2026 storm activity in Brown 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.

“ASOS station KABR Aberdeen Rgnl AP. (ABR)”

SPC verified report · 1 SSE Aberdeen Regional

“Mesonet station GOTS2 Groton 9 NNE (SD Mesonet). (ABR)”

SPC verified report · 7 S Claremont

Monday, June 8, 2026

5 NWS warnings — hail up to 0.5"

NEXRAD radar during the Monday, June 8, 2026 storm activity in Brown 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 314 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Stratford to near Chelsea to near Faulkton to 10 miles east of Stone Lake. Movement was southeast at 40 mph. Hazard: Wind gusts up to 50 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 · Brown County

“At 244 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Hecla to near Westport to near Mina Lake Rec Area. Movement was southeast 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. Minor hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Brown County

Wednesday, June 3, 2026

2 SPC verified storm reports — wind gusts up to 84 mph

NEXRAD radar during the Wednesday, June 3, 2026 storm activity in Brown 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.

“personal weather station. A small building at a football field also destroyed. (ABR)”

SPC verified report · Frederick

“Video of strong winds and tree damage from storm via facebook. Time estimated from Radar. (ABR)”

SPC verified report · Hecla

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 · Brown 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 · Brown County

Wednesday, May 13, 2026

4 NWS warnings — wind gusts up to 50 mph

“AFFECTED AREA...In Minnesota, Traverse and Big Stone. In South Dakota, Brown, Marshall, Roberts, Day, Spink, Clark, Codington, Grant, Hamlin and Deuel. WINDS...West 25 to 35 mph with gusts up to 50 mph. RELATIVE HUMIDITY...As low as 18 percent. IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.”

NWS severe weather mention · Brown County

“AFFECTED AREA...In Minnesota, Traverse and Big Stone. In South Dakota, Brown, Marshall, Roberts, Day, Spink, Clark, Codington, Grant, Hamlin and Deuel. WINDS...West 25 to 35 mph with gusts up to 50 mph. RELATIVE HUMIDITY...As low as 18 percent. IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.”

NWS severe weather mention · Brown County

Tuesday, May 12, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...Northwest winds 25 to 35 mph with gusts up to 50 mph expected. WHERE...McPherson, Brown, Marshall, and Roberts Counties. WHEN...Until 7 PM CDT this evening. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Brown County

Wednesday, April 22, 2026

1 NWS warning — wind gusts up to 55 mph

“At 1128 PM CDT/1028 PM MDT/, Doppler radar was tracking strong thunderstorms along a line extending from 9 miles north of Glenham to near Hillsview to 6 miles northwest of North Scatterwood Lake. Movement was northeast at 60 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 · Brown County

Wednesday, April 8, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...West winds 25 to 40 mph with gusts up to 50 mph expected. WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Brown, Clark, Codington, Day, Grant, Marshall, Roberts, and Spink Counties. WHEN...Until 9 PM CDT this evening. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Brown County

Friday, March 13, 2026

1 NWS warning — wind gusts up to 60 mph

“WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph. WHERE...Brown and Spink Counties. WHEN...Until 4 AM CDT early this morning. 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 · Brown County

Thursday, March 12, 2026

3 NWS warnings — wind gusts up to 70 mph

“WHAT...Northwest winds 40 to 50 mph with gusts up to 70 mph expected. WHERE...Brown and Spink Counties. WHEN...Until 4 AM CDT 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 · Brown County

“WHAT...Northwest winds 40 to 50 mph with gusts up to 70 mph expected. WHERE...Brown and Spink Counties. WHEN...From 7 PM this evening to 4 AM CDT 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 · Brown County

Wednesday, March 11, 2026

2 NWS warnings — wind gusts up to 60 mph

“WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph expected. WHERE...Brown and Spink Counties. WHEN...From 7 PM Thursday to 4 AM CDT 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 · Brown County

“WHAT...Northwest winds 30 to 35 mph with gusts up to 60 mph possible. WHERE...Brown and Spink Counties. WHEN...From Thursday evening 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 · Brown County

Wednesday, February 18, 2026

2 NWS warnings — wind gusts up to 55 mph

“WHAT...West winds 30 to 40 mph with gusts up to 55 mph. WHERE...Brown, Clark, Codington, Day, Deuel, Grant, Hamlin, Marshall, Roberts, and Spink Counties. WHEN...Until noon CST today. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Brown County

“WHAT...West winds 30 to 40 mph with gusts up to 55 mph. WHERE...Brown, Clark, Codington, Day, Deuel, Grant, Hamlin, Marshall, Roberts, and Spink Counties. WHEN...Until noon CST today. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Brown County

Tuesday, February 17, 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...Brown, Clark, Codington, Day, Deuel, Grant, Hamlin, Marshall, Roberts, and Spink Counties. WHEN...From midnight tonight to noon CST Wednesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Brown County

“WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. WHERE...Brown, Clark, Codington, Day, Deuel, Grant, Hamlin, Marshall, Roberts, and Spink Counties. WHEN...From midnight tonight to noon CST Wednesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Brown 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 Brown County, SD?

The most recent recorded event was on Aug 30, 2026. Official NWS and SPC records show 73 severe weather events in Brown 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 Brown County recently?

Yes — 14 hail reports in the last 12 months, with hail up to 2" 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 Brown 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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