Big Horn County Hail Map & Storm Reports
Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Nov 1, 2026
Looking for storm and wind reports in Big Horn County, Wyoming? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records show 51 severe weather events in the last 12 months — 39 high-wind reports with gusts up to 70 mph, plus 12 hail reports with hail up to 0.75". The most recent recorded storm activity was on Sep 18, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.
Big Horn County hail map
Where hail and high-wind reports clustered across Big Horn County over the last 12 months. Heat shows report density and significance, not radar.
What the radar showed
Storm exposure for an address in Big Horn 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.
Friday, September 18, 2026
1 NWS warning — hail up to 0.75"
“At 504 PM MDT, Doppler radar was tracking an area of strong thunderstorms extending from over Ranchester to 29 miles southeast of Sheridan moving northeast at 20 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. Locations impacted include...”
- Hail 0.75" Big Horn County NWS severe weather mention
Thursday, August 27, 2026
1 NWS warning — wind gusts up to 50 mph
“At 557 PM MDT, Doppler radar was tracking a line of thunderstorms producing gusty winds extending from 7 miles northeast of Lodge Grass to near Sheridan, moving east at 45 mph. Hazard: Wind gusts of 40 to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Big Horn County NWS severe weather mention
Tuesday, August 18, 2026
1 SPC verified storm report — wind gusts up to 60 mph
- Wind 60 mph 6 NE Hyattville SPC verified report
Wednesday, July 8, 2026
2 NWS warnings — hail up to 0.5"
“At 557 PM MDT, Doppler radar was tracking an area of strong thunderstorms extending from 40 miles south of Ashland to 30 miles east of Sheridan, or extending from 35 miles northeast of Sheridan to 30 miles east of Sheridan, moving east at 30 mph. Hazard: Wind gusts up to 50 mph and half inch size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects.”
“At 411 PM MDT, Doppler radar was tracking an area of strong thunderstorms 13 miles northwest of Dayton, or 29 miles northwest of Sheridan, moving east at 30 mph. Hazard: Wind gusts up to 40 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. Locations impacted include...”
- Hail 0.5" Big Horn County NWS severe weather mention
- Hail 0.5" Big Horn County NWS severe weather mention
Monday, July 6, 2026
1 NWS warning — hail up to 0.75"
“At 842 PM MDT, Doppler radar was tracking a strong thunderstorm 27 miles south of Fort Smith over the Bighorn Mountains, or 39 miles west of Sheridan, moving east at 25 mph. Hazard: Wind gusts up to 40 mph and penny size hail, along with very heavy rain. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible.”
- Hail 0.75" Big Horn County NWS severe weather mention
Friday, July 3, 2026
1 NWS warning — hail up to 0.5"
“At 652 PM MDT, Doppler radar was tracking a strong thunderstorm 13 miles north of Sheridan, moving southeast at 25 mph. Hazard: Wind gusts up to 50 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. Locations impacted include... Tongue River Reservoir.”
- Hail 0.5" Big Horn County NWS severe weather mention
Thursday, July 2, 2026
1 NWS warning — hail up to 0.5"
“At 536 PM MDT, Doppler radar was tracking a strong thunderstorm 15 miles northeast of Sheridan, moving northeast at 20 mph. Hazard: Wind gusts up to 40 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. Locations impacted include...”
- Hail 0.5" Big Horn County NWS severe weather mention
Friday, June 26, 2026
1 NWS warning — hail up to 0.5"
“At 702 PM MDT, Doppler radar was tracking an area of strong thunderstorms 26 miles south of Ashland, or 40 miles west of Broadus, moving northeast at 35 mph. Hazard: Wind gusts up to 40 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. Locations impacted include...”
- Hail 0.5" Big Horn County NWS severe weather mention
Thursday, June 25, 2026
1 NWS warning — hail up to 0.75"
“At 257 PM MDT, Doppler radar was tracking a strong thunderstorm 25 miles east of Sheridan, moving east at 25 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. Locations impacted include...”
- Hail 0.75" Big Horn County NWS severe weather mention
Sunday, June 7, 2026
3 NWS warnings — hail up to 0.75"
“At 732 PM MDT, Doppler radar was tracking a line of strong thunderstorms extending from near Ashland to 33 miles east of Sheridan, or extending from 23 miles southeast of Colstrip to 33 miles east of Sheridan, moving east at 55 mph. Hazard: Wind gusts of up to 55 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects.”
“At 233 PM MDT, Doppler radar was tracking an area of thunderstorms extending from 12 miles west of Fort Smith to 13 miles south of Sheridan, or extending from 37 miles southeast of Billings to 13 miles south of Sheridan, moving northeast at 35 mph. Hazard: Line of storms over the Bighorn mountains are expected to rapidly intensify as they mover northeast into the foothills.”
- Hail 0.75" Big Horn County NWS severe weather mention
- Hail 0.75" Big Horn County NWS severe weather mention
- Hail 0.75" Big Horn County NWS severe weather mention
Friday, April 17, 2026
2 NWS warnings — wind gusts up to 50 mph
“At 423 PM MDT, Doppler radar was tracking an area of scattered snow showers moving southeast at 25 mph. Locations impacted include... Billings, Sheridan, Livingston, Hardin, Colstrip, Red Lodge, Columbus, Roundup, Big Timber, Harlowton, Hysham, Custer, Laurel, Ranchester, Dayton, Bridger, Joliet, Fromberg, Lodge Grass and Ryegate.”
“At 423 PM MDT, Doppler radar was tracking an area of scattered snow showers moving southeast at 25 mph. Locations impacted include... Billings, Sheridan, Livingston, Hardin, Colstrip, Red Lodge, Columbus, Roundup, Big Timber, Harlowton, Hysham, Custer, Laurel, Ranchester, Dayton, Bridger, Joliet, Fromberg, Lodge Grass and Ryegate.”
- Wind 50 mph Big Horn County NWS severe weather mention
- Wind 50 mph Big Horn County NWS severe weather mention
Thursday, April 2, 2026
1 NWS warning — hail up to 0.5"
“At 646 PM MDT, Doppler radar was tracking thunderstorms 25 miles south of Busby, or 26 miles north of Sheridan, moving east at 25 mph. Hazard: Wind gusts up to 40 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. Locations impacted include...”
- Hail 0.5" Big Horn County NWS severe weather mention
Thursday, March 12, 2026
2 NWS warnings — wind gusts up to 70 mph
“WHAT...West winds with gusts of 50 to 70 mph expected. Locally higher gusts are possible. WHERE...In Montana, Bighorn Canyon, Red Lodge Foothills, and Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...Until 9 PM MDT this evening. IMPACTS...Extreme wind gusts could blow down trees and power lines. Power outages are possible. Travel could be difficult for high profile vehicles.”
“WHAT...West winds with gusts of 50 to 70 mph expected. Locally higher gusts are possible. WHERE...In Montana, Bighorn Canyon, Red Lodge Foothills, and Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...Until 9 PM MDT this evening. IMPACTS...Extreme wind gusts could blow down trees and power lines. Power outages are possible. Travel could be difficult for high profile vehicles.”
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
Wednesday, March 11, 2026
2 NWS warnings — wind gusts up to 70 mph
“WHAT...West winds with gusts of 50 to 70 mph possible. Locally higher gusts are possible. WHERE...Portions of central and south central Montana and north central Wyoming. WHEN...From late tonight through Thursday evening. IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel could be difficult, especially for high profile vehicles.”
“WHAT...West winds with gusts of 50 to 70 mph possible. Locally higher gusts are possible. WHERE...Portions of central and south central Montana and north central Wyoming. WHEN...From late tonight through Thursday evening. IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel could be difficult, especially for high profile vehicles.”
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
Tuesday, March 10, 2026
4 NWS warnings — wind gusts up to 70 mph
“WHAT...West winds with gusts of 50 to 70 mph possible. Locally higher gusts are possible. WHERE...Portions of central and south central Montana and north central Wyoming. WHEN...From late Wednesday night through Thursday evening. IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel could be difficult, especially for high profile vehicles.”
“WHAT...West winds with gusts of 50 to 70 mph possible. Locally higher gusts are possible. WHERE...Portions of central and south central Montana and north central Wyoming. WHEN...From late Wednesday night through Thursday evening. IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel could be difficult, especially for high profile vehicles.”
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
Monday, February 23, 2026
2 NWS warnings — wind gusts up to 60 mph
“WHAT...West winds 30 to 40 mph with gusts up to 60 mph possible. WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...From 8 PM MST this evening through Tuesday morning. IMPACTS...Travel could be difficult, especially for high profile vehicles. Expect crosswinds to be sudden and erratic.”
“WHAT...Southwest to west winds gusting 40 to 60 mph possible. WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...From this evening through Tuesday morning. IMPACTS...Travel could be difficult, especially for high profile vehicles. Expect crosswinds to be sudden and erratic.”
- Wind 60 mph Big Horn County NWS severe weather mention
- Wind 60 mph Big Horn County NWS severe weather mention
Tuesday, February 17, 2026
3 NWS warnings — wind gusts up to 70 mph
“WHAT...West wind gusts 50 to 70 mph. WHERE...In Montana, Bighorn Canyon, Pryor/Northern Bighorn Mountains, Red Lodge Foothills, Southeastern Carbon, and Southern Big Horn. In Wyoming, Northeast Bighorn Mountains and Sheridan Foothills. WHEN...Until 8 PM MST this evening. IMPACTS...Travel will be difficult, especially for high profile vehicles.”
“WHAT...Southwest winds gusting 50 to 70 mph. WHERE...Portions of south central Montana and north central Wyoming. WHEN...Until 8 PM MST this evening. IMPACTS...Travel will be difficult, especially for high profile vehicles. Damaging winds may blow down trees and power lines, and power outages are possible. Warm and dry conditions could cause rapid fire spread in wildland grasses.”
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 60 mph Big Horn County NWS severe weather mention
Monday, February 16, 2026
3 NWS warnings — wind gusts up to 70 mph
“WHAT...Southwest winds gusting 50 to 70 mph expected. WHERE...Portions of south central Montana and north central Wyoming. WHEN...Until 8 PM MST Tuesday. IMPACTS...Travel will be difficult, especially for high profile vehicles. Damaging winds may blow down trees and power lines, and power outages are possible. Warm and dry conditions could cause rapid fire spread.”
“WHAT...Southwest winds gusts up to 70 mph expected. WHERE...Portions of south central Montana and north central Wyoming. WHEN...From 11 PM this evening to 8 PM MST Tuesday. IMPACTS...Damaging winds will blow down trees and power lines. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles. Warm and dry conditions could cause rapid fire spread.”
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
Thursday, January 15, 2026
2 NWS warnings — wind gusts up to 60 mph
“WHAT...Northwest winds gusting 40 to 60 mph. WHERE...In Montana, Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...Until 5 PM MST Friday. IMPACTS...Damaging winds could blow down trees and power lines resulting in power outages. Travel will be difficult, especially for high profile vehicles. This includes travel along Interstate 90.”
“At 440 PM MST, an area of snow was located over Sheridan and Southern Big Horn counties. Locations impacted include... Sheridan, Ranchester, Dayton, Big Horn, Wyola, Parkman, Banner, and Ucross. Web cams show a slushy snow accumulation over the higher hills along I-90. Visibility will be near a mile at times due to snowfall and blowing snow, with northerly winds gusting 40 to 60 mph at times.”
- Wind 60 mph Big Horn County NWS severe weather mention
- Wind 60 mph Big Horn County NWS severe weather mention
Wednesday, January 7, 2026
1 NWS warning — wind gusts up to 50 mph
“At 311 PM MST, Doppler radar was tracking a line of showers extending from 26 miles northeast of Sheridan to 9 miles west of Dayton, or extending from 26 miles northeast of Sheridan to 25 miles west of Sheridan, moving south at 25 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Big Horn County NWS severe weather mention
Friday, December 26, 2025
1 NWS warning — wind gusts up to 60 mph
“At 849 PM MST, Gusty southwest to west winds will affect the east side of the Bighorn Mountains through the remainder of the evening. Winds could be erratic, surging suddenly down the mountains. Strongest winds can be expected between now and midnight. Winds will gradually decrease overnight. Hazard: Wind gusts of 40 to 60 mph.”
- Wind 60 mph Big Horn County NWS severe weather mention
Friday, December 19, 2025
2 NWS warnings — wind gusts up to 65 mph
“WHAT...Southwest to west winds with gusts of 50 to 65 mph. Locally higher gusts possible. WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...Until 2 PM MST this afternoon. IMPACTS...Damaging winds could blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. This includes travel on I-90 through Sheridan.”
“WHAT...Southwest to west winds with gusts of 50 to 65 mph. WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...Until 2 PM MST this afternoon. IMPACTS...Damaging winds could blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. This includes travel on I-90 through Sheridan.”
- Wind 65 mph Big Horn County NWS severe weather mention
- Wind 65 mph Big Horn County NWS severe weather mention
Thursday, December 18, 2025
5 NWS warnings — wind gusts up to 65 mph
“WHAT...Southwest to west winds with gusts of 50 to 65 mph. WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...From 8 PM this evening to 2 PM MST Friday. IMPACTS...Damaging winds could blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. This includes travel on I-90 through Sheridan.”
“WHAT...Southwest to west winds with gusts of 50 to 65 mph possible. WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...From this evening through Friday afternoon. IMPACTS...Damaging winds could blow down trees and power lines. Travel could be difficult, especially for high profile vehicles. This includes travel on I-90 through Sheridan.”
- Wind 65 mph Big Horn County NWS severe weather mention
- Wind 65 mph Big Horn County NWS severe weather mention
- Wind 65 mph Big Horn County NWS severe weather mention
- Wind 65 mph Big Horn County NWS severe weather mention
- Wind 65 mph Big Horn County NWS severe weather mention
Wednesday, December 17, 2025
3 NWS warnings — wind gusts up to 70 mph
“WHAT...Northwest winds with gusts 60 to 70 mph occurring. WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...Until 2 AM MST Thursday. IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. This includes travel on I-90 through Sheridan. Secure loose outdoor items.”
“WHAT...West winds gusting 55 to 70 mph occurring. WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...Until 2 AM MST Thursday. IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. This includes travel on I-90 through Sheridan. Secure loose outdoor items.”
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
Tuesday, December 16, 2025
5 NWS warnings — wind gusts up to 70 mph
“WHAT...Southwest to west winds gusts 55 to 70 mph expected. WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...From 2 AM Wednesday to 2 AM MST Thursday. IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. This includes travel on I-90 through Sheridan. Secure loose outdoor items.”
“WHAT...Southwest to west winds gusts 55 to 70 mph expected. WHERE...In Montana, Bighorn Canyon and Southern Big Horn. In Wyoming, Sheridan Foothills. WHEN...From 2 AM Wednesday to 2 AM MST Thursday. IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. This includes travel on I-90 through Sheridan. Secure loose outdoor items.”
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 70 mph Big Horn County NWS severe weather mention
- Wind 60 mph Big Horn County NWS severe weather mention
Today's severe weather outlook
Common questions
When was the last severe storm in Big Horn County, WY?
The most recent recorded event was on Sep 18, 2026. Official NWS and SPC records show 51 severe weather events in Big Horn 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 Big Horn County recently?
Yes — 12 hail reports in the last 12 months, with hail up to 0.75" 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 Big Horn 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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