Brown County Storm Activity
Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 180 days · Updated Sep 11, 2026
Has it hailed in Brown County, South Dakota recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 15 hail reports with hail up to 2", among 63 severe weather events logged here in the last 180 days, together with 48 high-wind reports with gusts up to 84 mph. The most recent recorded storm activity was in August 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.
What the radar showed
Last 30 days in Brown County
Recent storms — full detail available in the app
Storm activity from the last 30 days is summarized at the county level on this page. Exact locations, radar snapshots, and official warning boundaries for recent events are available with a free account.
See the specifics — free →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.
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...”
- Hail 0.75" Brown County NWS severe weather mention
Friday, July 24, 2026
3 SPC verified storm reports — wind gusts up to 72 mph
“Weatherlink station 3.2 east of Groton. (ABR)”
“ASOS station KABR Aberdeen Rgnl AP. (ABR)”
- Wind 72 mph 2 E Groton SPC verified report
- Wind 69 mph 2 W Richmond Lake Rec A SPC verified report
- Wind 59 mph 1 SSE Aberdeen Regional SPC verified report
Thursday, July 23, 2026
5 SPC verified storm reports — hail up to 2", wind gusts up to 60 mph
“Photo sent of 2 inch hail 10 miles north of Aberdeen. Time estimated by radar. (ABR)”
“Brown County EM Reported quarter sized hail at the intersection of 118th street and 387th Ave. (ABR)”
- Hail 2" 3 SSE Westport SPC verified report
- Wind 60 mph 4 NNE Hutterville Colon SPC verified report
- Hail 1" 2 N Westport SPC verified report
- Hail 1" 2 NNW Westport SPC verified report
- Wind Unknown Barnard SPC verified report
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.”
- Hail 0.25" Brown County NWS severe weather mention
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...”
- Wind 55 mph Brown County NWS severe weather mention
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.”
- Hail 0.5" Brown County NWS severe weather mention
Tuesday, July 7, 2026
1 SPC verified storm report · 1 NWS warning — hail up to 0.25", wind gusts up to 74 mph
“At 1100 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from 6 miles east of Grassland Colony to near Westport to near Richmond Lake Rec Area to 6 miles southwest of Aberdeen to near Mansfield. 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.”
- Wind 74 mph 6 W Barnard SPC verified report
- Hail 0.25" Brown County NWS severe weather mention
Monday, July 6, 2026
7 SPC verified storm reports — wind gusts up to 71 mph
“KABR ASOS Station reported a peak wind gust of 68 miles per hour. (ABR)”
“Mesonet station AWMS2 Aberdeen 10WSW (SD Mesonet). (ABR)”
- Wind 68 mph 1 SSE Aberdeen Regional SPC verified report
- Wind 71 mph 4 ESE Mina SPC verified report
- Wind 64 mph 2 SW Westport SPC verified report
- Wind 70 mph 7 S Claremont SPC verified report
- Wind 59 mph Warner SPC verified report
- Wind Unknown 5 ESE Bath SPC verified report
- Wind Unknown 1 E Aberdeen SPC verified report
Monday, June 29, 2026
2 SPC verified storm reports · 7 NWS warnings — hail up to 1", wind gusts up to 64 mph
“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.”
“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.”
- Wind 64 mph 6 SW Stratford SPC verified report
- Wind 50 mph Brown County NWS severe weather mention
- Wind 50 mph Brown County NWS severe weather mention
- Wind 50 mph Brown County NWS severe weather mention
- Wind 50 mph Brown County NWS severe weather mention
- Wind 50 mph Brown County NWS severe weather mention
- Wind 50 mph Brown County NWS severe weather mention
- Wind 50 mph Brown County NWS severe weather mention
- Hail 1" Groton SPC verified report
Sunday, June 28, 2026
2 NWS warnings — hail up to 0.25", wind gusts up to 50 mph
“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...”
“At 1223 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Spring Creek Colony to near Leola to near Long Lake Colony. Movement was northeast 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. Minor hail damage to vegetation is possible. Locations impacted include...”
- Wind 50 mph Brown County NWS severe weather mention
- Hail 0.25" Brown County NWS severe weather mention
Saturday, June 27, 2026
2 SPC verified storm reports — wind gusts up to 75 mph
“Mesonet station GOTS2 Groton 9 NNE (SD Mesonet). (ABR)”
- Wind 75 mph 2 ENE Aberdeen SPC verified report
- Wind 70 mph 7 S Claremont SPC verified report
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)”
- Wind Unknown Groton SPC verified report
Tuesday, June 9, 2026
2 SPC verified storm reports
“1 tree down. Report via social media. Time estimated via radar. (ABR)”
“several trees down in town... particularly on North Washington Street and 15th Avenue Northeast. (ABR)”
- Wind Unknown Columbia SPC verified report
- Wind Unknown 1 N Aberdeen SPC verified report
Monday, June 8, 2026
6 SPC verified storm reports · 5 NWS warnings — hail up to 0.5", wind gusts up to 78 mph
“ASOS station KABR Aberdeen Rgnl AP. (ABR)”
“Mesonet station GOTS2 Groton 9 NNE (SD Mesonet). (ABR)”
- Wind 78 mph 2 WNW Richmond Lake Rec SPC verified report
- Wind 70 mph 1 SSE Aberdeen Regional SPC verified report
- Wind 66 mph 7 S Claremont SPC verified report
- Hail 0.5" Brown County NWS severe weather mention
- Hail 0.25" Brown County NWS severe weather mention
- Hail 0.25" Brown County NWS severe weather mention
- Hail 0.25" Brown County NWS severe weather mention
- Hail 0.25" Brown County NWS severe weather mention
- Wind Unknown 1 N Columbia SPC verified report
- Wind Unknown 3 NNW Aberdeen SPC verified report
- Wind Unknown 3 N Aberdeen SPC verified report
Wednesday, June 3, 2026
2 SPC verified storm reports — wind gusts up to 84 mph
“personal weather station. A small building at a football field also destroyed. (ABR)”
“Video of strong winds and tree damage from storm via facebook. Time estimated from Radar. (ABR)”
- Wind 84 mph Frederick SPC verified report
- Wind Unknown Hecla SPC verified report
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.”
“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.”
- Wind 50 mph Brown County NWS severe weather mention
- Wind 50 mph Brown County NWS severe weather mention
- Wind 50 mph Brown County NWS severe weather mention
- Wind 50 mph Brown County NWS severe weather mention
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.”
“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.”
- Wind 50 mph Brown County NWS severe weather mention
- Wind 50 mph Brown County NWS severe weather mention
- Wind 50 mph Brown County NWS severe weather mention
- Wind 50 mph Brown County NWS severe weather mention
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.”
- Wind 50 mph Brown County NWS severe weather mention
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...”
- Wind 55 mph Brown County NWS severe weather mention
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.”
- Wind 50 mph Brown County NWS severe weather mention
Today's severe weather outlook
Common questions
When was the last severe storm in Brown County, SD?
The most recent recorded event was in August 2026. Official NWS and SPC records show 63 severe weather events in Brown County over the last 180 days. Exact dates and locations for recent storms are available in the app with a free account.
Has there been hail in Brown County recently?
Yes — 15 hail reports in the last 180 days, with hail up to 2" recorded.
How do I check whether a specific address was affected?
Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property — county-level pages like this one only tell part of the story.