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

Day County Hail Map & Storm Reports

Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 14, 2026

Day County, South Dakota has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 2 tornado reports among 53 severe weather events here in the last 12 months, alongside 6 hail reports with hail up to 1" and 45 high-wind reports with gusts up to 68 mph. The most recent recorded storm activity was on Aug 7, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

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

Day County hail map

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

53
Events (12 mo)
6
Hail
45
Wind
2
Tornado
1"
Max hail
68
Max wind (mph)
Aug 7, 2026
Most recent

What the radar showed

Radar snapshot during the Jun 29, 2026 tornado event near Pierpont, Day County, South Dakota, with NWS warning polygons
NEXRAD radar at the moment of the Jun 29, 2026 tornado event (Tornado) near Pierpont. 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.

Hail history for an address in Day County

See address-level storm exposure — verified hail and wind reports plus official warning boundaries around any specific property, including the most recent 30 days. Free account, takes under a minute.

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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, August 7, 2026

1 NWS warning — hail up to 0.88"

NEXRAD radar during the Friday, August 7, 2026 storm activity in Day 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 521 AM CDT, Doppler radar was tracking a strong thunderstorm 6 miles northeast of Florence, 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... Dakota Sioux Casino around 535 AM CDT.”

NWS severe weather mention · Day County

Friday, July 24, 2026

1 SPC verified storm report — wind gusts up to 64 mph

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

“Wundergound station 5.2 SE of Pierpont. (ABR)”

SPC verified report · 4 SE Pierpont

Monday, July 20, 2026

1 NWS warning — hail up to 0.25"

“At 1221 AM CDT, Doppler radar was tracking a strong thunderstorm near Agency Village, moving east at 35 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... Agency Village, Sisseton and Long Hollow Housing around 1225 AM CDT.”

NWS severe weather mention · Day 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 Day 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 · Day 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 · Day 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 · Day County

Monday, July 6, 2026

3 SPC verified storm reports — hail up to 1", wind gusts up to 62 mph

NEXRAD radar during the Monday, July 6, 2026 storm activity in Day 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.

“The CoCoRaHS observer 5 miles north of Waubay estimated wind speeds hit 60 mph. Time estimated. (ABR)”

SPC verified report · 2 SE Waubay Wildlife Re

“Mesonet station SD503 in Andover (SDDOT). (ABR)”

SPC verified report · Andover

Monday, June 29, 2026

6 SPC verified storm reports · 4 NWS warnings — wind gusts up to 65 mph, 2 tornado reports

NEXRAD radar during the Monday, June 29, 2026 storm activity in Day 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.

“Marshall County EM relayed a report of a tornado near Pierpont. Time/location estimated. (ABR)”

SPC verified report · Pierpont

“Tornado observed and quickly became rain wrapped. (ABR)”

SPC verified report · 1 S Andover

Sunday, June 28, 2026

1 NWS warning — wind gusts up to 50 mph

NEXRAD radar during the Sunday, June 28, 2026 storm activity in Day 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 · Day County

Monday, June 15, 2026

1 SPC verified storm report · 2 NWS warnings — wind gusts up to 68 mph

NEXRAD radar during the Monday, June 15, 2026 storm activity in Day 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 182 Waubay (SDDOT). (ABR)”

SPC verified report · 4 W Waubay

“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 · Day County

Tuesday, May 26, 2026

2 NWS warnings — hail up to 0.88"

NEXRAD radar during the Tuesday, May 26, 2026 storm activity in Day 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 950 PM CDT, Doppler radar was tracking a strong thunderstorm near Bitter Lake, or 9 miles southwest of Waubay, moving south at 10 mph. Hazard: Nickel size hail. Impact: Minor hail damage to vegetation is possible. Locations impacted include... Webster, Waubay, Wallace, Grass Lake, Antelope Lake, Rush Lake, Minnewasta Lake, Blue Dog Lake, Bitter Lake, and Waubay Lake.”

NWS severe weather mention · Day County

“At 930 PM CDT, Doppler radar was tracking a strong thunderstorm over Bitter Lake, or near Waubay, moving southeast at 10 mph. Hazard: Penny size hail. Impact: Minor hail damage to vegetation is possible. Locations impacted include... Waubay, Rush Lake, Bitter Lake, and Blue Dog Lake.”

NWS severe weather mention · Day County

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 · Day 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 · Day 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 · Day 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 · Day 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 · Day County

Saturday, March 28, 2026

2 NWS warnings — wind gusts up to 60 mph

“AFFECTED AREA...In South Dakota, Marshall, Roberts and Day. WINDS...Southwest 25 to 35 mph with gusts up to 60 mph. RELATIVE HUMIDITY...As low as 23 percent. IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.”

NWS severe weather mention · Day County

“AFFECTED AREA...In South Dakota, Marshall, Roberts and Day. 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 19 percent.”

NWS severe weather mention · Day County

Friday, March 27, 2026

4 NWS warnings — wind gusts up to 55 mph

“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 · Day County

“AFFECTED AREA...In South Dakota, Marshall, Roberts and Day. WINDS...Southwest 25 to 35 mph with gusts up to 50 mph. The strongest winds will be in the morning, before slowly diminishing in the afternoon. 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 · Day 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 · Day 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 · Day 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 · Day 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 · Day 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 · Day County

Wednesday, February 18, 2026

5 NWS warnings — wind gusts up to 55 mph

“WHAT...West winds 30 to 40 mph with gusts up to 55 mph. WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Day and Marshall 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 · Day County

“WHAT...West winds 30 to 40 mph with gusts up to 55 mph. WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Day and Marshall 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 · Day 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 · Day 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 · Day 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 Day County, SD?

The most recent recorded event was on Aug 7, 2026. Official NWS and SPC records show 53 severe weather events in Day 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 Day County recently?

Yes — 6 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 Day 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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