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South Dakota · Official NOAA Storm Data

Buffalo County Storm Activity

Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 180 days · Updated Sep 11, 2026

Buffalo County, South Dakota has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 2 tornado reports among 29 severe weather events here in the last 180 days, alongside 11 hail reports with hail up to 3" and 16 high-wind reports with gusts up to 81 mph. The most recent recorded storm activity was in September 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

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

29
Events (180d)
11
Hail
16
Wind
2
Tornado
3"
Max hail
81
Max wind (mph)
September 2026
Most recent

What the radar showed

Radar snapshot during the Jul 2, 2026 tornado event near 2 E Gann Valley, Buffalo County, South Dakota, with NWS warning polygons
NEXRAD radar at the moment of the Jul 2, 2026 tornado event (Tornado) near 2 E Gann Valley. 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.

Last 30 days in Buffalo County

Current NEXRAD radar over Buffalo County, South Dakota with recent storm report locations
Current radar over the Buffalo County area, with storm reports from the past 7 days plotted. Refreshes throughout the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.
September 2026 1 storm day · 2 NWS warnings — hail to 0.25" Exact dates & locations in app →
August 2026 2 storm days · 1 SPC verified report · 2 NWS warnings — hail to 0.25", wind to 63 mph Exact dates & locations in app →

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.

Monday, July 6, 2026

1 NWS warning — hail up to 0.88"

NEXRAD radar during the Monday, July 6, 2026 storm activity in Buffalo 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 300 PM CDT, Doppler radar was tracking a strong thunderstorm over Counselor Creek Boat Access Area, or near Fort Thompson, moving east at 20 mph. Hazard: Wind gusts up to 50 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. Locations impacted include...”

NWS severe weather mention · Buffalo County

Friday, July 3, 2026

2 NWS warnings — hail up to 0.75"

NEXRAD radar during the Friday, July 3, 2026 storm activity in Buffalo 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 327 AM CDT, trained weather spotters reported a cluster of strong thunderstorms along a line extending from 6 miles southwest of Highmore to near Etbauer Hill to near Chamberlain. Movement was east at 35 mph. Hazard: Wind gusts of 50 to 55 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.”

NWS severe weather mention · Buffalo County

“At 255 AM CDT, trained weather spotters reported a cluster of strong thunderstorms along a line extending from near Lake Sharpe to 7 miles north of Colome. Movement was northeast at 25 mph. Hazard: Wind gusts of 50 to 55 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.”

NWS severe weather mention · Buffalo County

Thursday, July 2, 2026

7 SPC verified storm reports — hail up to 3", wind gusts up to 81 mph, 2 tornado reports

NEXRAD radar during the Thursday, July 2, 2026 storm activity in Buffalo 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.

“Several photos on X of a tornado on the ground near Gann Valley. Location estimated via radar. (ABR)”

SPC verified report · 2 E Gann Valley

“Photo relayed via text... included spotter ruler card. (ABR)”

SPC verified report · 7 SSW Gann Valley

Saturday, June 27, 2026

4 NWS warnings — wind gusts up to 50 mph

NEXRAD radar during the Saturday, June 27, 2026 storm activity in Buffalo 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 1129 PM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from 10 miles west of Polo to near Highmore to Stephan to near Lower Brule. 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... Miller, Highmore, Lower Brule, St.”

NWS severe weather mention · Buffalo 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 · Buffalo County

Wednesday, June 17, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph. WHERE...Buffalo, Hand, Hughes, Hyde, Sully, Faulk, Potter, Walworth, 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 · Buffalo County

Tuesday, June 16, 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...Buffalo, Hand, Hughes, Hyde, Sully, Faulk, Potter, Walworth, and Spink Counties. WHEN...From 10 AM to 9 PM CDT Wednesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Buffalo County

Tuesday, June 2, 2026

1 NWS warning — wind gusts up to 50 mph

NEXRAD radar during the Tuesday, June 2, 2026 storm activity in Buffalo 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 819 PM CDT, trained weather spotters reported a cluster of strong thunderstorms near Degrey Rec Area, or 13 miles south of Blunt, moving northeast at 20 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 · Buffalo County

Sunday, May 31, 2026

1 NWS warning — hail up to 0.25"

NEXRAD radar during the Sunday, May 31, 2026 storm activity in Buffalo 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 1248 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from 7 miles northeast of Degrey Rec Area to 9 miles east of Stephan to near Gann Valley. Movement was north 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.”

NWS severe weather mention · Buffalo County

Thursday, May 14, 2026

3 NWS warnings — wind gusts up to 50 mph

“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 · Buffalo County

“AFFECTED AREA...In South Dakota, Spink, Clark, Codington, Hamlin, Deuel, Stanley, Sully, Hughes, Hyde, Hand, Jones, Lyman and Buffalo. 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 · Buffalo County

Saturday, March 28, 2026

3 NWS warnings — wind gusts up to 55 mph

“AFFECTED AREA...In South Dakota, Faulk, Spink, Hyde, Hand, Lyman and Buffalo. WINDS...Southwest 20 to 30 mph with gusts up to 55 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 · Buffalo County

“WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph. WHERE...Buffalo, Hand, Hyde, Lyman, and Spink Counties. WHEN...Until 4 PM CDT this afternoon. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Gusty winds may also cause blowing dust to occasionally reduce visibility, especially near open fields.”

NWS severe weather mention · Buffalo 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 Buffalo County, SD?

The most recent recorded event was in September 2026. Official NWS and SPC records show 29 severe weather events in Buffalo 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 Buffalo County recently?

Yes — 11 hail reports in the last 180 days, with hail up to 3" 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.

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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 our HailyDB engine 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.