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

Sully County Hail Map & Storm Reports

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 Sully County, South Dakota? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records show 65 severe weather events in the last 12 months — 43 high-wind reports with gusts up to 80 mph, plus 22 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.

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

Sully County hail map

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

65
Events (12 mo)
22
Hail
43
Wind
0
Tornado
0.88"
Max hail
80
Max wind (mph)
September 2026
Most recent

What the radar showed

Radar snapshot during the Jul 25, 2026 wind event near 7 NW Harrold, Sully County, South Dakota, with NWS warning polygons
NEXRAD radar at the moment of the Jul 25, 2026 wind event (67 mph) near 7 NW Harrold. 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 Sully County

Current NEXRAD radar over Sully County, South Dakota with recent storm report locations
Current radar over the Sully 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 3 storm days · 7 NWS warnings — hail to 0.75" Exact dates & locations in app →
August 2026 1 storm day · 1 SPC verified report — wind to 61 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, August 3, 2026

1 NWS warning — wind gusts up to 50 mph

“...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT /9 PM CDT/ THIS EVENING DUE TO WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF CENTRAL AND NORTH CENTRAL SOUTH DAKOTA... AFFECTED AREA...Portions of central and north central South Dakota. TIMING...Until 9 PM CDT /8 PM MDT/ this evening. WINDS...North winds 25 to 35 mph with gusts up to 50 mph.”

NWS severe weather mention · Sully County

Thursday, July 30, 2026

1 NWS warning — hail up to 0.25"

“At 1207 AM CDT /1107 PM MDT/, Public reported a line of strong thunderstorms extending from near Grey Goose to 13 miles south of 5 Mile Corner, or extending from 13 miles north of Pierre to 15 miles southwest of Presho, moving east at 25 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.”

NWS severe weather mention · Sully County

Wednesday, July 29, 2026

1 NWS warning — hail up to 0.25"

“At 1130 PM CDT /1030 PM MDT/, Public reported a line of strong thunderstorms extending from near Chantier Creek Recreation Area to 7 miles east of Westover, or extending from 17 miles west of Fort Pierre to 15 miles southeast of Murdo, moving east at 25 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.”

NWS severe weather mention · Sully County

Saturday, July 25, 2026

1 SPC verified storm report · 2 NWS warnings — hail up to 0.5", wind gusts up to 67 mph

NEXRAD radar during the Saturday, July 25, 2026 storm activity in Sully 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 HDMS2 Harrold 8NW (SD Mesonet). (ABR)”

SPC verified report · 7 NW Harrold

“At 612 PM CDT /512 PM MDT/, Doppler radar was tracking an area of strong thunderstorms extending from over Lantry to 8 miles northwest of Chantier Creek Recreation Area, or extending from over Lantry to 22 miles northwest of Fort Pierre, moving northeast at 45 mph. Hazard: Wind gusts of 50 to 55 mph and half inch size hail.”

NWS severe weather mention · Sully County

Saturday, July 4, 2026

1 NWS warning — hail up to 0.75"

“At 740 PM CDT, Doppler radar was tracking a strong thunderstorm 6 miles southeast of Stone Lake, or 20 miles southeast of Gettysburg, moving southeast at 10 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 damage to outdoor objects is possible. The strong thunderstorm will be near...”

NWS severe weather mention · Sully County

Saturday, June 27, 2026

6 NWS warnings — hail up to 0.25", wind gusts up to 55 mph

NEXRAD radar during the Saturday, June 27, 2026 storm activity in Sully 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 925 PM CDT/825 PM MDT/, trained weather spotters reported strong thunderstorms along a line extending from near Eagle Butte to 13 miles south of Ridgeview to Mission Ridge to 6 miles northwest of Van Metre. Movement was east at 30 mph. Hazard: Wind gusts of 50 to 55 mph. been reported with these thunderstorms in western Stanley County.”

NWS severe weather mention · Sully County

“At 1030 PM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from near Akaska to 8 miles south of Cottonwood Lake Near Agar to Rousseau. Movement was northeast at 30 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 · Sully County

Thursday, June 18, 2026

1 NWS warning — wind gusts up to 50 mph

“At 1111 PM CDT/1011 PM MDT/, Doppler radar was tracking gusty showers along a line extending from Timber Lake to 9 miles southwest of Ridgeview to 8 miles northeast of Hayes. Movement was east 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...”

NWS severe weather mention · Sully 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 · Sully County

Tuesday, June 16, 2026

3 NWS warnings — hail up to 0.75", wind gusts up to 55 mph

NEXRAD radar during the Tuesday, June 16, 2026 storm activity in Sully 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 1030 PM CDT/930 PM MDT/, trained weather spotters reported a strong thunderstorm near Bear Creek, or 7 miles northeast of Lantry, moving southeast at 55 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 · Sully County

“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 · Sully County

Monday, June 15, 2026

1 SPC verified storm report · 1 NWS warning — wind gusts up to 60 mph

NEXRAD radar during the Monday, June 15, 2026 storm activity in Sully 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 ONMS2 Onida 13WSW (SD Mesonet). (ABR)”

SPC verified report · 8 ENE Okobojo Creek Rec

“At 253 PM CDT, Doppler radar was tracking gusty showers and a weak few thunderstorms along a line extending from near Seneca to near Cottonwood Lake Near Agar to near Chantier Creek Recreation Area. Movement was east 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...”

NWS severe weather mention · Sully County

Thursday, June 4, 2026

1 NWS warning — hail up to 0.75"

“At 1001 PM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from 6 miles northwest of Canning to 8 miles west of Intersection of Highway 83 and White River. Movement was south at 35 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.”

NWS severe weather mention · Sully County

Sunday, May 31, 2026

2 NWS warnings — hail up to 0.25", wind gusts up to 55 mph

NEXRAD radar during the Sunday, May 31, 2026 storm activity in Sully 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 124 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Stone Lake to 8 miles north of Ree Heights to near Vayland. Movement was north 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... Redfield, Miller, Faulkton, Bowdle, Tulare, St.”

NWS severe weather mention · Sully County

“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 · Sully 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 · Sully 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 · Sully County

Thursday, April 23, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. WHERE...Hughes, Hyde, Jones, Lyman, Stanley, Sully, Faulk, and Potter Counties. WHEN...From 1 PM CDT /noon MDT/ this afternoon to 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 · Sully County

Wednesday, April 22, 2026

6 NWS warnings — hail up to 0.88"

NEXRAD radar during the Wednesday, April 22, 2026 storm activity in Sully 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 1132 PM CDT/1032 PM MDT/, Doppler radar was tracking strong thunderstorms along a line extending from near Ridgeview to Swiftbird Day School to near Cottonwood Lake Near Agar. Movement was northeast at 30 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 hail damage to vegetation is possible.”

NWS severe weather mention · Sully County

“At 1054 PM CDT/954 PM MDT/, Doppler radar was tracking strong thunderstorms along a line extending from 8 miles southeast of Intersection of Highway 63 and BIA Road 8 to near Little Bend Rec Area to near Pierre. Movement was north at 35 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.”

NWS severe weather mention · Sully County

Tuesday, April 21, 2026

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

NEXRAD radar during the Tuesday, April 21, 2026 storm activity in Sully 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 332 Okobojo (SDDOT). (ABR)”

SPC verified report · 7 N Okobojo Creek Rec A

Saturday, April 11, 2026

1 NWS warning — wind gusts up to 55 mph

NEXRAD radar during the Saturday, April 11, 2026 storm activity in Sully 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 1032 PM CDT/932 PM MDT/, Doppler radar was tracking gusty outflow wind from a couple of showers along a line extending from Milesville to near Ottumwa to near Midland to 7 miles north of Corn Creek. Movement was northeast 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 · Sully County

Thursday, March 12, 2026

5 NWS warnings — wind gusts up to 80 mph

“WHAT...Northwest winds 45 to 55 mph with gusts up to 80 mph expected. WHERE...Portions of central and north central South Dakota. WHEN...Until 1 AM CDT /midnight MDT/ 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 · Sully County

“AFFECTED AREA...In South Dakota, Corson, Campbell, McPherson, Walworth, Edmunds, Dewey, Potter, Faulk, Stanley, Sully, Hughes, Hyde, Hand, Jones, Lyman and Buffalo. WINDS...West 45 to 55 mph with gusts up to 80 mph. RELATIVE HUMIDITY...20 to 35 percent across south central South Dakota. 35 to 50 percent over north central South Dakota.”

NWS severe weather mention · Sully County

Wednesday, March 11, 2026

5 NWS warnings — wind gusts up to 65 mph

“The National Weather Service in Aberdeen has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon CDT /11 AM MDT/ to 9 PM CDT /8 PM MDT/ Thursday. The Fire Weather Watch is no longer in effect. AFFECTED AREA...In South Dakota, Corson, Campbell, McPherson, Walworth, Edmunds, Dewey, Potter, Faulk, Stanley, Sully, Hughes, Hyde, Hand, Jones, Lyman and Buffalo.”

NWS severe weather mention · Sully County

“AFFECTED AREA...In South Dakota, Corson, Campbell, McPherson, Walworth, Edmunds, Dewey, Potter, Faulk, Stanley, Sully, Hughes, Hyde, Hand, Jones, Lyman and Buffalo. WINDS...West 30 to 40 mph with gusts up to 65 mph. RELATIVE HUMIDITY...Down to between 20 and 35 percent. IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.”

NWS severe weather mention · Sully County

Tuesday, March 10, 2026

2 NWS warnings — wind gusts up to 55 mph

“WHAT...Northwest winds 30 to 40 mph with gusts up to 55 mph possible. WHERE...Portions of central and north central South Dakota. WHEN...From Thursday afternoon through late Thursday night. 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 · Sully County

“WHAT...Northwest winds 30 to 40 mph with gusts up to 55 mph possible. WHERE...Portions of central and north central South Dakota. WHEN...From Thursday afternoon through late Thursday night. 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 · Sully County

Wednesday, February 18, 2026

5 NWS warnings — wind gusts up to 65 mph

“WHAT...West winds 30 to 40 mph with gusts up to 65 mph. WHERE...Buffalo, Hand, Hughes, Hyde, Jones, Lyman, Stanley, Sully, Dewey, and Potter Counties. WHEN...Until noon CST /11 AM MST/ today. 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 · Sully County

“WHAT...Northwest winds 35 to 45 mph with gusts up to 60 mph. WHERE...Buffalo, Hand, Hughes, Hyde, Jones, Lyman, Stanley, Sully, Dewey, and Potter Counties. WHEN...Until noon CST /11 AM MST/ today. 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 · Sully County

Tuesday, February 17, 2026

3 NWS warnings — wind gusts up to 55 mph

“WHAT...West winds 25 to 35 mph with gusts up to 55 mph. WHERE...Portions of central and north central South Dakota. WHEN...Until noon CST /11 AM MST/ Wednesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Sully County

“WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. WHERE...Portions of central and north central South Dakota. WHEN...From 9 PM CST /8 PM MST/ this evening to noon CST /11 AM MST/ Wednesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Sully County

Friday, January 16, 2026

1 NWS warning — wind gusts up to 55 mph

“Wind gusts will generally remain below 60 mph through the evening hours. A Winter Weather Advisory remains in effect until 12 AM CST /11 PM MST/ this evening. Wind gusts ranging from 35 to 55 mph this evening with areas of light snow and blowing snow.”

NWS severe weather mention · Sully County

Thursday, December 18, 2025

1 NWS warning — wind gusts up to 70 mph

“WHAT...Northwest winds 40 to 50 mph with gusts up to 70 mph. WHERE...Buffalo, Hand, Hughes, Hyde, Jones, Lyman, Stanley, and Sully Counties. WHEN...Until 3 PM CST /2 PM MST/ 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 · Sully 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 Sully County, SD?

The most recent recorded event was in September 2026. Official NWS and SPC records show 65 severe weather events in Sully 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 Sully County recently?

Yes — 22 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.

How do I see hail history for a specific address in Sully 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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