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

Lyman County Hail Map & Storm Reports

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

Has it hailed in Lyman County, South Dakota recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 32 hail reports with hail up to 1.75", among 90 severe weather events logged here in the last 12 months, together with 58 high-wind reports with gusts up to 80 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 Lyman County, South Dakota showing the county boundary and surrounding cities
Lyman County, South Dakota. Map © Mapbox © OpenStreetMap · County boundary: US Census Bureau.

Lyman County hail map

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

90
Events (12 mo)
32
Hail
58
Wind
0
Tornado
1.75"
Max hail
80
Max wind (mph)
Sep 14, 2026
Most recent

What the radar showed

Radar snapshot during the Jun 3, 2026 hail event near 4 WNW Iona, Lyman County, South Dakota, with NWS warning polygons
NEXRAD radar at the moment of the Jun 3, 2026 hail event (1.75") near 4 WNW Iona. 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 Lyman 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 — hail up to 0.5"

“At 646 AM CDT /546 AM MDT/, Doppler radar was tracking a line of strong thunderstorms extending from 7 miles southwest of Ridgeview to 6 miles southeast of Pierre, or extending from 18 miles east of Eagle Butte to 6 miles southeast of Pierre, moving northeast at 55 mph. Hazard: Wind gusts of 50 to 55 mph and half inch size hail.”

NWS severe weather mention · Lyman County

Monday, September 7, 2026

3 NWS warnings — hail up to 0.25"

“At 1216 PM CDT /1116 AM MDT/, Doppler radar was tracking an area of strong thunderstorms 5 miles west of Ree Heights, or 7 miles east of Highmore, moving northeast at 40 mph. Also, strong thunderstorms were located near Murdo to Presho to Grey Hill Rec Area. 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.”

NWS severe weather mention · Lyman County

“At 1152 AM CDT /1052 AM MDT/, Doppler radar was tracking an area of strong thunderstorms 11 miles south of Holabird, or 11 miles southwest of Highmore, moving northeast at 40 mph. Also, strong thunderstorms were located from near Murdo to Presho to Grey Hill Rec Area. Hazard: Wind gusts of 50 to 55 mph and pea size hail.”

NWS severe weather mention · Lyman County

Wednesday, August 19, 2026

2 NWS warnings — hail up to 0.25", wind gusts up to 50 mph

“At midnight CDT /1100 PM MDT/, Doppler radar was tracking a line of showers extending from near Sansarc to 9 miles south of Okaton, or extending from 35 miles west of Fort Pierre to 13 miles southwest of Murdo, moving east at 45 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. The shower will be near...”

NWS severe weather mention · Lyman County

“At 155 AM CDT, Doppler radar was tracking a strong thunderstorm 9 miles southwest of Earling Hill, or 12 miles south of Presho, moving east at 15 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.”

NWS severe weather mention · Lyman County

Tuesday, August 18, 2026

1 SPC verified storm report · 2 NWS warnings — hail up to 0.25", wind gusts up to 60 mph

“Strong winds and rain was coming down horizontally (0.70in). time estimated by Radar. (ABR)”

SPC verified report · 5 N Iona

“At 1227 AM CDT, Doppler radar was tracking a line of strong thunderstorms extending from 6 miles southwest of Vayland to 6 miles northeast of Byre Lake, or extending from 9 miles southeast of Miller to 10 miles southwest of Lower Brule, moving southeast at 45 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 · Lyman County

Monday, August 17, 2026

1 NWS warning — hail up to 0.75"

“At 704 PM CDT, Doppler radar was tracking a strong thunderstorm 7 miles southwest of Cedar Creek Rec Area, or 14 miles north of Presho, moving east 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 damage to outdoor objects is possible. The strong thunderstorm will be near...”

NWS severe weather mention · Lyman County

Tuesday, August 11, 2026

1 SPC verified storm report — wind gusts up to 58 mph

“Mesonet station KBMS2 Kennebec 6SSE (SD Mesonet). (ABR)”

SPC verified report · 6 SSE Kennebec

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 · Lyman 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 · Lyman County

Saturday, July 25, 2026

2 NWS warnings — hail up to 0.5"

“At 254 PM CDT /154 PM MDT/, Doppler radar was tracking a strong thunderstorm 11 miles north of Murdo, moving northeast at 25 mph. Hazard: Wind gusts of 50 to 55 mph and half inch size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible.”

NWS severe weather mention · Lyman County

“At 340 PM CDT /240 PM MDT/, Doppler radar was tracking a strong thunderstorm 6 miles south of Wendte, or 19 miles north of Murdo, moving east at 30 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... Wendte around 345 PM CDT.”

NWS severe weather mention · Lyman County

Sunday, July 19, 2026

2 SPC verified storm reports — wind gusts up to 62 mph

“Mesonet station KBMS2 Kennebec 6SSE (SD Mesonet). (ABR)”

SPC verified report · 6 SSE Kennebec

Monday, July 6, 2026

2 NWS warnings — hail up to 0.88"

“At 326 PM CDT, Doppler radar was tracking a strong thunderstorm 9 miles south of Lyman, or 13 miles west of Oacoma, 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 hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Lyman County

“At 300 PM CDT, Doppler radar was tracking a strong thunderstorm over Counselor Creek Boat Access Area, or near Fort Thompson, moving east at 20 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 · Lyman County

Saturday, July 4, 2026

2 SPC verified storm reports · 1 NWS warning — hail up to 1.25"

NEXRAD radar during the Saturday, July 4, 2026 storm activity in Lyman 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.

“mainly dime and nickel size hail with some larger hailstones thrown in. (ABR)”

SPC verified report · 3 NE Oacoma

“At 631 PM CDT, Doppler radar was tracking a strong thunderstorm over Oacoma, moving southeast 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... Oacoma and Dude Ranch around 645 PM CDT.”

NWS severe weather mention · Lyman County

Friday, July 3, 2026

2 SPC verified storm reports · 5 NWS warnings — hail up to 0.88", wind gusts up to 62 mph

NEXRAD radar during the Friday, July 3, 2026 storm activity in Lyman 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.

“Personal weather station 4.9 miles SW of Kennebec recorded a gust of 58 mph. (ABR)”

SPC verified report · 4 SW Kennebec

“Mesonet station 13 Vivian (SDDOT). (ABR)”

SPC verified report · 9 NNW Vivian

Thursday, July 2, 2026

2 SPC verified storm reports — wind gusts up to 69 mph

NEXRAD radar during the Thursday, July 2, 2026 storm activity in Lyman 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 54 Reliance (SDDOT). (ABR)”

SPC verified report · 3 SE Reliance

“Mesonet station 285 Lower Brule 14 W (SDDOT). (ABR)”

SPC verified report · 6 SW Joe Creek Rec Area

Wednesday, July 1, 2026

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

“Mesonet station OCMS2 Oacoma 2W (SD Mesonet). (ABR)”

SPC verified report · 2 W Oacoma

“At 232 AM CDT, trained weather spotters reported a cluster of strong thunderstorms 8 miles northwest of Iona, or 11 miles southwest of Oacoma, moving 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 · Lyman County

Monday, June 29, 2026

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

NEXRAD radar during the Monday, June 29, 2026 storm activity in Lyman 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 13 Vivian (SDDOT). (ABR)”

SPC verified report · 9 NNW Vivian

“Mesonet station VVMS2 Vivian 12S (SD Mesonet). (ABR)”

SPC verified report · 12 S Vivian

Saturday, June 27, 2026

5 NWS warnings — wind gusts up to 55 mph

NEXRAD radar during the Saturday, June 27, 2026 storm activity in Lyman 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 1000 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from Grey Goose to near Pierre to 8 miles southeast of Wendte. 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 · Lyman County

“At 1129 PM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from 10 miles west of Polo to near Highmore to Stephan to near Lower Brule. 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. Locations impacted include... Miller, Highmore, Lower Brule, St.”

NWS severe weather mention · Lyman County

Wednesday, June 17, 2026

2 NWS warnings — wind gusts up to 55 mph

“WHAT...Northwest winds 25 to 35 mph with gusts up to 55 mph. WHERE...Jones, Lyman, and Stanley Counties. WHEN...Until 9 PM CDT /8 PM MDT/ this evening. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Lyman County

“WHAT...Northwest winds 30 to 40 mph with gusts up to 55 mph expected. WHERE...Jones, Lyman, and Stanley Counties. WHEN...Until 9 PM CDT /8 PM MDT/ this evening. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Lyman County

Tuesday, June 16, 2026

2 NWS warnings — wind gusts up to 55 mph

“WHAT...Northwest winds 30 to 40 mph with gusts up to 55 mph expected. WHERE...Jones, Lyman, and Stanley Counties. WHEN...From 10 AM CDT /9 AM MDT/ to 9 PM CDT /8 PM MDT/ Wednesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Lyman County

“WHAT...Northwest winds 30 to 40 mph with gusts up to 55 mph expected. WHERE...Jones, Lyman, and Stanley Counties. WHEN...From 10 AM CDT /9 AM MDT/ to 9 PM CDT /8 PM MDT/ Wednesday. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Lyman County

Tuesday, June 9, 2026

1 SPC verified storm report — wind gusts up to 59 mph

“Mesonet station LBMS2 Lower Brule 2WNW (SD Mesonet). (ABR)”

SPC verified report · 1 WNW Lower Brule

Thursday, June 4, 2026

4 SPC verified storm reports · 2 NWS warnings — hail up to 0.88", wind gusts up to 71 mph

NEXRAD radar during the Thursday, June 4, 2026 storm activity in Lyman 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 285 Lower Brule 14 W (SDDOT). (ABR)”

SPC verified report · 6 SW Joe Creek Rec Area

“Mesonet station 13 Vivian (SDDOT). (ABR)”

SPC verified report · 9 NNW Vivian

Wednesday, June 3, 2026

3 SPC verified storm reports — hail up to 1.75", wind gusts up to 60 mph

NEXRAD radar during the Wednesday, June 3, 2026 storm activity in Lyman 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.

“winds rocking a pickup filled with equipment... very heavy downpours also reported. (ABR)”

SPC verified report · 8 WNW Iona

Tuesday, June 2, 2026

2 SPC verified storm reports · 2 NWS warnings — hail up to 1.75", wind gusts up to 60 mph

NEXRAD radar during the Tuesday, June 2, 2026 storm activity in Lyman 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 13 Vivian (SDDOT). (ABR)”

SPC verified report · 9 NNW Vivian

“At 1032 PM CDT, Doppler radar was tracking a strong thunderstorm over Medicine Butte, or 8 miles south of Lower Brule, 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...”

NWS severe weather mention · Lyman County

Sunday, May 31, 2026

2 NWS warnings — hail up to 0.88"

“At 1206 AM CDT, Doppler radar was tracking a strong thunderstorm near Kennebec, or near Presho, moving north at 40 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 · Lyman 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 · Lyman 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 · Lyman 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 · Lyman 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 · Lyman County

Wednesday, April 22, 2026

1 NWS warning — hail up to 0.25"

“At 930 PM CDT/830 PM MDT/, Doppler radar was tracking strong thunderstorms along a line extending from Strasburg to 7 miles north of Gettysburg to 7 miles north of Wood. Movement was northeast at 55 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 · Lyman County

Saturday, March 28, 2026

3 NWS warnings — wind gusts up to 55 mph

“AFFECTED AREA...In South Dakota, Faulk, Spink, Hyde, Hand, Lyman and Buffalo. WINDS...Southwest 20 to 30 mph with gusts up to 55 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 · Lyman County

“WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph. WHERE...Buffalo, Hand, Hyde, Lyman, and Spink Counties. WHEN...Until 4 PM CDT this afternoon. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Gusty winds may also cause blowing dust to occasionally reduce visibility, especially near open fields.”

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

The most recent recorded event was on Sep 14, 2026. Official NWS and SPC records show 90 severe weather events in Lyman 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 Lyman County recently?

Yes — 32 hail reports in the last 12 months, with hail up to 1.75" 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 Lyman 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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