Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 14, 2026
Looking for storm and wind reports in Grant County, South Dakota? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records show 61 severe weather events in the last 12 months — 47 high-wind reports with gusts up to 65 mph, plus 14 hail reports with hail up to 0.88". 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.
Where hail and high-wind reports clustered across Grant County over the last 12 months. Heat shows report density and significance, not radar.
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 →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.
1 NWS warning — hail up to 0.88"
“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.”
1 NWS warning — hail up to 0.25"
“At 813 PM CDT, Doppler radar was tracking a line of strong thunderstorms extending from over Immanuel Church to over Summit, or extending from 8 miles northeast of Wheaton to 9 miles southwest of Wilmot, moving east at 20 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.”
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.”
1 SPC verified storm report — wind gusts up to 62 mph
“Personal Weather Station at Lazy Coyote Farm. (ABR)”
4 NWS warnings — hail up to 0.88", wind gusts up to 55 mph
“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...”
“At 354 PM CDT, Doppler radar was tracking a strong thunderstorm capable of producing a landspout over Milbank, moving east at 5 mph. Hazard: Landspouts, wind gusts up to 40 mph, and nickel size hail. Impact: Minor damage to outdoor objects is possible. Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Milbank and Twin Brooks.”
1 SPC verified storm report · 1 NWS warning — hail up to 0.88", wind gusts up to 65 mph
“Mesonet station 292 Milbank 7NE(SDDOT). (ABR)”
“At 547 PM CDT, Doppler radar was tracking a strong thunderstorm over Lismore Colony, or 8 miles southwest of Clinton, 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... Lismore Colony around 550 PM CDT.”
1 NWS warning — hail up to 0.75"
“At 1134 AM CDT, Doppler radar was tracking a strong thunderstorm over Troy, or 14 miles northeast of Watertown, moving north at 25 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...”
1 SPC verified storm report · 4 NWS warnings — wind gusts up to 60 mph
“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...”
“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...”
1 NWS warning — wind gusts up to 55 mph
“WHAT...Southwest wind gusts as high as 45 to 55 mph. WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Deuel, Grant, and Roberts Counties. WHEN...Until 4 AM CDT early this morning. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”
2 NWS warnings — hail up to 0.88"
“At 344 PM CDT, Doppler radar was tracking a strong thunderstorm near Twin Brooks, or near Milbank, 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 hail damage to vegetation is possible. Locations impacted include... Milbank and Big Stone City.”
“At 343 PM CDT, Doppler radar was tracking a strong thunderstorm over Revillo, or 15 miles south of Milbank, 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... Revillo and Albee.”
2 NWS warnings — hail up to 0.5"
“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...”
“At 856 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from 6 miles north of Trinity Lutheran Country Church to near Lismore Colony to near Marvin. Movement was southeast at 25 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.”
2 NWS warnings — hail up to 0.88"
“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.”
“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.”
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.”
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.”
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.”
6 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.”
“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.”
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.”
“WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph expected, with locally higher wind gusts in the downslope enhanced areas along Interstate 29 between Peever and Summit. WHERE...Codington, Deuel, Grant, Marshall, and Roberts 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.”
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.”
“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.”
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.”
“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.”
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.”
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.”
“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.”
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.”
“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.”
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.”
“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.”
1 NWS warning — wind gusts up to 55 mph
“Locally strong and gusty south to southwesterly winds of 20 to 30 mph with occasional gusts of 40 to 55 mph are expected along the eastern slopes of the Sisseton Hills this evening into the early morning hours on Tuesday. The locations most affected will be the higher terrain areas of the Sisseton Hills as well as up to 15 miles east of the hills.”
The most recent recorded event was in September 2026. Official NWS and SPC records show 61 severe weather events in Grant County over the last 12 months. Exact dates and locations for recent storms are available in the app with a free account.
Yes — 14 hail reports in the last 12 months, with hail up to 0.88" recorded. The hail map above shows where reports clustered; the storm log lists each day.
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.