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Storm ActivitySouth Dakota Storm ActivityHamlin County, SD
South Dakota · Official NOAA Storm Data

Hamlin County Hail Map & Storm Reports

Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 15, 2026

Has it hailed in Hamlin County, South Dakota recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 7 hail reports with hail up to 1", among 48 severe weather events logged here in the last 12 months, together with 41 high-wind reports with gusts up to 70 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 Hamlin County, South Dakota showing the county boundary and surrounding cities
Hamlin County, South Dakota. Map © Mapbox © OpenStreetMap · County boundary: US Census Bureau.

Hamlin County hail map

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

48
Events (12 mo)
7
Hail
41
Wind
0
Tornado
1"
Max hail
70
Max wind (mph)
September 2026
Most recent

What the radar showed

Radar snapshot during the Jun 9, 2026 wind event near 2 SW Stone Bridge, Hamlin County, South Dakota, with NWS warning polygons
NEXRAD radar at the moment of the Jun 9, 2026 wind event (70 mph) near 2 SW Stone Bridge. 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 Hamlin County

Current NEXRAD radar over Hamlin County, South Dakota with recent storm report locations
Current radar over the Hamlin 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 · 1 NWS warning — wind to 55 mph Exact dates & locations in app →
August 2026 2 storm days · 1 SPC verified report · 1 NWS warning — hail to 0.88", wind to 60 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.

Friday, July 24, 2026

1 NWS warning — hail up to 0.25"

NEXRAD radar during the Friday, July 24, 2026 storm activity in Hamlin 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 1056 PM CDT, Doppler radar was tracking a strong thunderstorm near Clark, moving south at 50 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 damage to outdoor objects is possible. The strong thunderstorm will be near... Clark and Fordham Colony around 1100 PM CDT.”

NWS severe weather mention · Hamlin County

Tuesday, July 7, 2026

1 NWS warning — hail up to 0.75"

NEXRAD radar during the Tuesday, July 7, 2026 storm activity in Hamlin 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 1214 AM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from 7 miles northeast of Gary to near Naples. Movement was south at 20 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 · Hamlin County

Thursday, July 2, 2026

2 SPC verified storm reports — wind gusts up to 60 mph

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

“Corrects previous tstm wnd gst report from 4 E Hayti for updated time. Trained spotter estimated wind gusts of 60-65 mph. (ABR)”

SPC verified report · 4 E Hayti

Monday, June 15, 2026

4 NWS warnings — wind gusts up to 55 mph

NEXRAD radar during the Monday, June 15, 2026 storm activity in Hamlin 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 529 PM CDT, trained weather spotters reported strong thunderstorms along a line extending from near Long Hollow Housing to near Summit to Bryant. Movement was east at 45 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 · Hamlin County

“At 454 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Beardsley to near Twin Brooks to Lake Albert. Movement was east at 50 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 · Hamlin County

Tuesday, June 9, 2026

3 SPC verified storm reports — wind gusts up to 70 mph

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

“Trained spotter reports multiple irrigation pivots damaged due to wind. Time estimated by radar. (ABR)”

SPC verified report · 2 SSW Claremont Colony

“Significant tree damage along 465th Avenue. (ABR)”

SPC verified report · 3 N Poinsett Colony

Wednesday, June 3, 2026

2 NWS warnings — hail up to 0.88"

NEXRAD radar during the Wednesday, June 3, 2026 storm activity in Hamlin 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 839 PM CDT, Doppler radar was tracking a strong thunderstorm near Claremont Colony, or near Castlewood, moving northeast at 25 mph. Hazard: Wind gusts up to 40 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... Kranzburg, Goodwin, and Bemis.”

NWS severe weather mention · Hamlin County

“At 935 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Bryant to near Poinsett Colony to near Gary. Movement was east at 25 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. Locations impacted include...”

NWS severe weather mention · Hamlin County

Tuesday, June 2, 2026

2 SPC verified storm reports — hail up to 1"

NEXRAD radar during the Tuesday, June 2, 2026 storm activity in Hamlin 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.

“Delayed report. A trained spotter noted hail damage to crops at 459th ave between 187th and 189th st. Time and size estimated. (ABR)”

SPC verified report · 3 S Castlewood

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 · Hamlin 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 · Hamlin 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 · Hamlin 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 · Hamlin County

Saturday, March 28, 2026

2 NWS warnings — wind gusts up to 60 mph

“AFFECTED AREA...In South Dakota, Clark, Codington, Grant, Hamlin and Deuel. WINDS...Southwest 25 to 35 mph with gusts up to 60 mph. RELATIVE HUMIDITY...As low as 22 percent. IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.”

NWS severe weather mention · Hamlin County

“AFFECTED AREA...In South Dakota, Clark, Codington, Grant, Hamlin and Deuel. WINDS...Southwest 25 to 35 mph with gusts up to 60 mph. The strongest winds will be in the favored Sisseton hills downslope areas during the late morning, before slowly diminishing in the mid to late afternoon. RELATIVE HUMIDITY...As low as 18 percent.”

NWS severe weather mention · Hamlin County

Friday, March 27, 2026

5 NWS warnings — wind gusts up to 60 mph

“AFFECTED AREA...In South Dakota, Clark, Codington, Grant, Hamlin and Deuel. WINDS...Southwest 35 to 45 mph with gusts up to 60 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 · Hamlin County

“WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph expected. WHERE...Clark, Day, and Hamlin Counties. WHEN...From 7 AM to 5 PM CDT Saturday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Hamlin County

Friday, March 13, 2026

2 NWS warnings — wind gusts up to 65 mph

“WHAT...Northwest winds 30 to 40 mph with gusts up to 65 mph. WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Clark, Codington, Day, Deuel, Grant, Hamlin, Marshall, and Roberts Counties. WHEN...Until 7 AM CDT 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 · Hamlin County

“WHAT...Northwest winds 30 to 40 mph with gusts up to 55 mph. WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Clark, Codington, Day, Deuel, Grant, Hamlin, Marshall, and Roberts Counties. WHEN...Until 7 AM CDT 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 · Hamlin County

Thursday, March 12, 2026

3 NWS warnings — wind gusts up to 65 mph

“WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Clark, Codington, Day, Deuel, Grant, Hamlin, Marshall, and Roberts Counties. WHEN...Until 7 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 · Hamlin County

“WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Clark, Codington, Day, Deuel, Grant, Hamlin, Marshall, and Roberts Counties. WHEN...From 7 PM this evening to 7 AM CDT Friday. IMPACTS...High winds may move loose debris, damage property and cause power outages.”

NWS severe weather mention · Hamlin County

Wednesday, March 11, 2026

1 NWS warning — wind gusts up to 60 mph

“WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph expected. WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Clark, Codington, Day, Deuel, Grant, Hamlin, Marshall, and Roberts Counties. WHEN...From 7 PM Thursday to 7 AM CDT Friday. IMPACTS...High winds may move loose debris, damage property and cause power outages.”

NWS severe weather mention · Hamlin County

Wednesday, February 18, 2026

6 NWS warnings — wind gusts up to 65 mph

“WHAT...West winds 35 to 45 mph with gusts up to 65 mph. WHERE...Codington, Deuel, Grant, Hamlin, and Roberts Counties. WHEN...Until 2 PM CST 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 · Hamlin County

“WHAT...West winds 35 to 40 mph with gusts up to 60 mph. WHERE...Codington, Deuel, Grant, Hamlin, and Roberts Counties. WHEN...Until 2 PM CST 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 · Hamlin 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 · Hamlin 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 · Hamlin County

Thursday, December 4, 2025

2 NWS warnings — wind gusts up to 50 mph

“There will be sustained southwest winds of 20 to 25 mph with gusts up to 40 to 50 mph between Brandt and Sisseton this afternoon. These winds will be focused along the eastern side of the Prairie Coteau. This is causing blowing and drifting snow, which may briefly reduce visibilities down to a mile or less at times.”

NWS severe weather mention · Hamlin County

“There will be sustained southwest winds of 20 to 25 mph with gusts up to 40 to 50 mph between Watertown and Sisseton this afternoon. These winds will be focused along the eastern side of the Prairie Coteau. This is causing mainly drifting snow, but in areas prone to blowing snow, the snow may be lofted and briefly reduce visibilities.”

NWS severe weather mention · Hamlin 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 Hamlin County, SD?

The most recent recorded event was in September 2026. Official NWS and SPC records show 48 severe weather events in Hamlin 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 Hamlin County recently?

Yes — 7 hail reports in the last 12 months, with hail up to 1" 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 Hamlin 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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