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

Clark County Hail Map & Storm Reports

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

Clark County, South Dakota has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 1 tornado report among 46 severe weather events here in the last 12 months, alongside 12 hail reports with hail up to 1" and 33 high-wind reports with gusts up to 65 mph. The most recent recorded storm activity was on Sep 14, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

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

Clark County hail map

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

46
Events (12 mo)
12
Hail
33
Wind
1
Tornado
1"
Max hail
65
Max wind (mph)
Sep 14, 2026
Most recent

What the radar showed

Radar snapshot during the Jul 2, 2026 tornado event near 5 SW Willow Lake, Clark County, South Dakota, with NWS warning polygons
NEXRAD radar at the moment of the Jul 2, 2026 tornado event (Tornado) near 5 SW Willow Lake. 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 Clark 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 14, 2026

1 NWS warning — wind gusts up to 55 mph

NEXRAD radar during the Monday, September 14, 2026 storm activity in Clark 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 843 AM CDT, Doppler radar was tracking a line of strong thunderstorms extending from over Memorial Park Camping Site to 17 miles south of Astoria, or extending from 6 miles north of Goose Lake to 28 miles southeast of Estelline, moving 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.”

NWS severe weather mention · Clark County

Wednesday, September 2, 2026

1 NWS warning — hail up to 0.75"

“At 536 AM CDT, Doppler radar was tracking a strong thunderstorm over Camrose Colony, or 14 miles east of Redfield, moving east at 40 mph. Hazard: Penny size hail. Impact: Minor damage to outdoor objects is possible. The strong thunderstorm will be near... Camrose Colony and Frankfort around 540 AM CDT. Doland and Turton around 550 AM CDT. Raymond around 600 AM CDT. Clark around 610 AM CDT.”

NWS severe weather mention · Clark County

Saturday, August 29, 2026

2 NWS warnings — hail up to 0.88"

NEXRAD radar during the Saturday, August 29, 2026 storm activity in Clark 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 212 AM CDT, Doppler radar was tracking a strong thunderstorm over Mayfield Colony, or 8 miles northwest of Bryant, moving east 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 damage to outdoor objects is possible. The strong thunderstorm will be near...”

NWS severe weather mention · Clark County

“At 150 AM CDT, Doppler radar was tracking a strong thunderstorm 8 miles northwest of Willow Lake, or 12 miles south of Clark, moving east 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 damage to outdoor objects is possible. The strong thunderstorm will be near...”

NWS severe weather mention · Clark County

Friday, August 28, 2026

1 NWS warning — hail up to 0.88"

NEXRAD radar during the Friday, August 28, 2026 storm activity in Clark 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 1156 PM CDT, Doppler radar was tracking a strong thunderstorm 8 miles southwest of Hillside Colony, or 23 miles southeast of Redfield, moving east at 25 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 damage to outdoor objects is possible. The strong thunderstorm will be near...”

NWS severe weather mention · Clark County

Friday, July 24, 2026

2 NWS warnings — hail up to 0.25"

“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 · Clark County

“At 1034 PM CDT, Doppler radar was tracking a strong thunderstorm 6 miles southwest of Crocker, or 14 miles northwest of Clark, moving southeast at 50 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 damage to outdoor objects is possible. The strong thunderstorm will be near...”

NWS severe weather mention · Clark County

Friday, July 10, 2026

2 NWS warnings — wind gusts up to 55 mph

NEXRAD radar during the Friday, July 10, 2026 storm activity in Clark 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 106 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from Blue Dog Lake to near Swan Lake to Turton to near Devoe. Movement was southeast 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 · Clark County

“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 · Clark County

Tuesday, July 7, 2026

1 NWS warning — hail up to 0.75"

“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 · Clark County

Thursday, July 2, 2026

4 SPC verified storm reports · 1 NWS warning — hail up to 1", wind gusts up to 59 mph, 1 tornado report

NEXRAD radar during the Thursday, July 2, 2026 storm activity in Clark 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 444 PM CDT, Doppler radar was tracking a strong thunderstorm near Carpenter, or 17 miles southwest of Clark, moving northeast at 10 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 damage to outdoor objects is possible. The strong thunderstorm will be near...”

NWS severe weather mention · Clark County

Sunday, June 28, 2026

1 NWS warning — wind gusts up to 50 mph

NEXRAD radar during the Sunday, June 28, 2026 storm activity in Clark 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 125 AM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from near Pierpont to Andover to 6 miles west of Butler to near Crocker to Fordham Colony. 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. Strong thunderstorms will be near...”

NWS severe weather mention · Clark County

Monday, June 15, 2026

2 NWS warnings — wind gusts up to 55 mph

NEXRAD radar during the Monday, June 15, 2026 storm activity in Clark 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 435 PM CDT, trained weather spotters reported strong thunderstorms along a line extending from near Claire City to 8 miles south of Ortley to near Bryant. 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 · Clark County

“At 409 PM CDT, trained weather spotters reported strong thunderstorms along a line extending from 6 miles southeast of Kidder to Webster to near Raymond. Movement was east at 55 mph. Hazard: Wind gusts of 50 to 55 mph and blowing dust. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”

NWS severe weather mention · Clark County

Wednesday, June 3, 2026

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

NEXRAD radar during the Wednesday, June 3, 2026 storm activity in Clark 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 903 PM CDT, Doppler radar was tracking a strong thunderstorm near Fordham Colony, or near Clark, moving east at 30 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 · Clark County

“At 728 PM CDT, Doppler radar was tracking a strong thunderstorm near Carpenter, or 17 miles south of Clark, moving northeast 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 hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 · Clark 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 Clark County, SD?

The most recent recorded event was on Sep 14, 2026. Official NWS and SPC records show 46 severe weather events in Clark 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 Clark County recently?

Yes — 12 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 Clark 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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