Johnson 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 Johnson County, Wyoming recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 56 hail reports with hail up to 0.88", among 85 severe weather events logged here in the last 12 months, together with 29 high-wind reports with gusts up to 89 mph. 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.
Johnson County hail map
Where hail and high-wind reports clustered across Johnson County over the last 12 months. Heat shows report density and significance, not radar.
What the radar showed
Storm exposure for an address in Johnson 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 SPC verified storm report · 3 NWS warnings — hail up to 0.25", wind gusts up to 59 mph
“ASOS station KBYG Buffalo Airport (ASOS). (RIW)”
“At 456 PM MDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from 17 miles northeast of Mayoworth to near Edgerton. Movement was northeast 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 hail damage to vegetation is possible.”
- Wind 59 mph 3 NNW Buffalo SPC verified report
- Hail 0.25" Johnson County NWS severe weather mention
- Hail 0.25" Johnson County NWS severe weather mention
- Hail 0.25" Johnson County NWS severe weather mention
Sunday, August 30, 2026
2 NWS warnings — wind gusts up to 55 mph
“At 118 PM MDT, Doppler radar was tracking gusty showers near Lake De Smet, which is 7 miles northeast of Buffalo, moving southeast at 20 mph. Hazard: Wind gusts of 50 to 55 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. This strong thunderstorm will be near... Buffalo around 125 PM MDT. This includes the following highways...”
“At 118 PM MDT, Doppler radar was tracking gusty showers near Lake De Smet, which is 7 miles northeast of Buffalo, moving southeast at 20 mph. Hazard: Wind gusts of 50 to 55 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. This strong thunderstorm will be near... Buffalo around 125 PM MDT. This includes the following highways...”
- Wind 55 mph Johnson County NWS severe weather mention
- Wind 55 mph Johnson County NWS severe weather mention
Sunday, August 23, 2026
4 NWS warnings — hail up to 0.5", wind gusts up to 50 mph
“At 938 PM MDT, Doppler radar was tracking an outflow boundary moving south-southeast at 15 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could blow around unsecured objects. This storm will remain over mainly rural areas of central Johnson County. This includes the following highways... Interstate 25 between mile markers 263 and 297. Interstate 90 between mile markers 62 and 83.”
“At 938 PM MDT, Doppler radar was tracking an outflow boundary moving south-southeast at 15 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could blow around unsecured objects. This storm will remain over mainly rural areas of central Johnson County. This includes the following highways... Interstate 25 between mile markers 263 and 297. Interstate 90 between mile markers 62 and 83.”
- Wind 50 mph Johnson County NWS severe weather mention
- Wind 50 mph Johnson County NWS severe weather mention
- Wind 50 mph Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
Saturday, August 22, 2026
1 SPC verified storm report · 6 NWS warnings — hail up to 0.75"
“At 638 PM MDT, Doppler radar was tracking a strong thunderstorm 9 miles west of Linch, which is 16 miles southeast of Kaycee, moving south at 10 mph. Hazard: Wind gusts of 50 to 55 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.”
“At 548 PM MDT, Doppler radar was tracking a strong thunderstorm 11 miles east of Kaycee, moving south at 5 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. This storm will remain over mainly rural areas of south central Johnson County.”
- Hail 0.75" Johnson County NWS severe weather mention
- Hail 0.75" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Wind Unknown 7 W Sussex SPC verified report
Tuesday, August 18, 2026
1 NWS warning — hail up to 0.25"
“At 705 PM MDT, Doppler radar was tracking a strong thunderstorm near Mayoworth, which is near Kaycee, moving southeast at 50 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 hail damage to vegetation is possible. This storm will remain over mainly rural areas of southeastern Johnson County.”
- Hail 0.25" Johnson County NWS severe weather mention
Saturday, July 25, 2026
2 NWS warnings — wind gusts up to 50 mph
“At 1026 PM MDT, Doppler radar was tracking gusty showers over Lake De Smet, which is 7 miles north of Buffalo, moving southeast at 35 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. This strong thunderstorm will be near... Buffalo around 1030 PM MDT. This includes the following highways...”
“At 1026 PM MDT, Doppler radar was tracking gusty showers over Lake De Smet, which is 7 miles north of Buffalo, moving southeast at 35 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. This strong thunderstorm will be near... Buffalo around 1030 PM MDT. This includes the following highways...”
- Wind 50 mph Johnson County NWS severe weather mention
- Wind 50 mph Johnson County NWS severe weather mention
Sunday, July 19, 2026
2 NWS warnings — wind gusts up to 55 mph
“At 626 PM MDT, Doppler radar was tracking a strong thunderstorm 12 miles east of Lake De Smet, which is 15 miles northeast of Buffalo, moving southeast at 25 mph. Hazard: Wind gusts of 50 to 55 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. This storm will remain over mainly rural areas of northeastern Johnson County, including the following locations...”
“At 555 PM MDT, Doppler radar was tracking a strong thunderstorm near Fort Phil Kearny Historical Site, which is 15 miles southeast of Sheridan, moving southeast at 20 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects.”
- Wind 55 mph Johnson County NWS severe weather mention
- Wind 50 mph Johnson County NWS severe weather mention
Friday, July 17, 2026
2 NWS warnings — hail up to 0.75"
“At 628 PM MDT, Doppler radar was tracking a strong thunderstorm over Powder River Rest Area, which is 30 miles west of Gillette, moving northwest at 20 mph. Hazard: Wind gusts of 50 to 55 mph and penny size hail. Impact: Gusty winds could blow around unsecured objects. Minor hail damage to vegetation is possible. This strong thunderstorm will be near... Powder River Rest Area around 635 PM MDT.”
“At 628 PM MDT, Doppler radar was tracking a strong thunderstorm over Powder River Rest Area, which is 30 miles west of Gillette, moving northwest at 20 mph. Hazard: Wind gusts of 50 to 55 mph and penny size hail. Impact: Gusty winds could blow around unsecured objects. Minor hail damage to vegetation is possible. This strong thunderstorm will be near... Powder River Rest Area around 635 PM MDT.”
- Hail 0.75" Johnson County NWS severe weather mention
- Hail 0.75" Johnson County NWS severe weather mention
Wednesday, July 8, 2026
1 SPC verified storm report · 3 NWS warnings — hail up to 0.75", wind gusts up to 58 mph
“Mesonet station WY3 I-90 Indian Creek Rd (DOT). (RIW)”
“At 252 PM MDT, Doppler radar was tracking a strong thunderstorm near Fort Reno Historical Site, which is 25 miles east of Kaycee, moving east 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.”
- Wind 58 mph 24 ESE Buffalo SPC verified report
- Hail 0.75" Johnson County NWS severe weather mention
- Hail 0.75" Johnson County NWS severe weather mention
- Hail 0.75" Johnson County NWS severe weather mention
Tuesday, July 7, 2026
1 SPC verified storm report · 3 NWS warnings — hail up to 0.75", wind gusts up to 61 mph
“Mesonet station WY63 I-25 Tisdale Divide (DOT). (RIW)”
“At 600 PM MDT, Doppler radar was tracking a strong thunderstorm near Hole In The Wall, which is 7 miles southwest of Kaycee, moving southeast at 20 mph. Hazard: Wind gusts of 50 to 55 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.”
- Wind 61 mph 14 SE Kaycee SPC verified report
- Hail 0.75" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
Monday, July 6, 2026
3 NWS warnings — hail up to 0.88"
“At 830 PM MDT, Doppler radar was tracking a strong thunderstorm over Linch, which is 25 miles east of Kaycee, moving northeast at 15 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. This storm will remain over mainly rural areas of southeastern Johnson County.”
“At 826 PM MDT, Doppler radar was tracking a strong thunderstorm over Powder River Rest Area, which is 27 miles east of Buffalo, moving northeast at 15 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. This strong thunderstorm will be near...”
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.88" Johnson County NWS severe weather mention
Thursday, July 2, 2026
4 NWS warnings — hail up to 0.5", wind gusts up to 50 mph
“At 1100 PM MDT, Doppler radar was tracking a strong thunderstorm 12 miles west of Powder River Rest Area, which is 16 miles southeast of Buffalo, moving northeast at 40 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. This storm will remain over mainly rural areas of northeastern Johnson County.”
“At 633 PM MDT, Doppler radar was tracking a strong thunderstorm near Buffalo, moving northeast 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.”
- Wind 50 mph Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
Saturday, June 27, 2026
3 SPC verified storm reports · 8 NWS warnings — hail up to 0.5", wind gusts up to 89 mph
“Mesonet station WY3 I-90 Indian Creek Rd (DOT). (RIW)”
“Mesonet station PC578 Purdy East (PC). Time estimate from radar. (RIW)”
- Wind 89 mph 24 ESE Buffalo SPC verified report
- Wind 58 mph 15 NNE Mayoworth SPC verified report
- Wind 63 mph 13 WNW Midwest SPC verified report
- Wind 55 mph Johnson County NWS severe weather mention
- Wind 55 mph Johnson County NWS severe weather mention
- Wind 55 mph Johnson County NWS severe weather mention
- Wind 55 mph Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
Friday, June 26, 2026
10 NWS warnings — hail up to 0.5"
“At 455 PM MDT, Doppler radar was tracking a strong thunderstorm near Powder River Rest Area, which is 32 miles west of Gillette, moving northeast at 20 mph. Hazard: Wind gusts of 50 to 55 mph and half inch hail. Impact: Gusty winds could blow around unsecured objects. Minor hail damage to vegetation is possible. This storm will remain over mainly rural areas of east central Johnson County.”
“At 455 PM MDT, Doppler radar was tracking a strong thunderstorm near Powder River Rest Area, which is 32 miles west of Gillette, moving northeast at 20 mph. Hazard: Wind gusts of 50 to 55 mph and half inch hail. Impact: Gusty winds could blow around unsecured objects. Minor hail damage to vegetation is possible. This storm will remain over mainly rural areas of east central Johnson County.”
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.25" Johnson County NWS severe weather mention
- Hail 0.25" Johnson County NWS severe weather mention
Thursday, June 25, 2026
6 NWS warnings — hail up to 0.88"
“At 312 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from 14 miles southwest of Powder River Rest Area to 8 miles southwest of Linch. Movement was east at 50 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.”
“At 312 PM MDT, Doppler radar was tracking strong thunderstorms along a line extending from 14 miles southwest of Powder River Rest Area to 8 miles southwest of Linch. Movement was east at 50 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.”
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
Monday, June 22, 2026
4 NWS warnings — hail up to 0.88"
“At 213 PM MDT, Doppler radar was tracking a strong thunderstorm 8 miles southeast of Powder River Rest Area, which is 31 miles west of Gillette, moving east at 25 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.”
“At 131 PM MDT, Doppler radar was tracking a strong thunderstorm 9 miles west of Powder River Rest Area, which is 21 miles southeast of Buffalo, moving southeast at 25 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.”
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.75" Johnson County NWS severe weather mention
Saturday, June 20, 2026
3 SPC verified storm reports — wind gusts up to 67 mph
“Public weather sensor measured gust. (RIW)”
“Purdy East PC sensor. Sustained 37 mph wind with 59 mph gust. (RIW)”
- Wind 67 mph 1 SE Sussex SPC verified report
- Wind 59 mph 15 NNE Mayoworth SPC verified report
- Wind 58 mph 13 WNW Midwest SPC verified report
Sunday, June 7, 2026
2 SPC verified storm reports · 3 NWS warnings — hail up to 0.88", wind gusts up to 64 mph
“Mesonet station PC549 Tisdale Mtn (PC). (RIW)”
“Mesonet station WY3 I-90 Indian Creek Rd (DOT). (RIW)”
- Wind 64 mph 13 WNW Midwest SPC verified report
- Wind 58 mph 24 ESE Buffalo SPC verified report
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
Saturday, June 6, 2026
1 SPC verified storm report — wind gusts up to 59 mph
“Mesonet station DHS I-90 Piney Creek (DOT). (RIW)”
- Wind 59 mph 13 NNW Buffalo SPC verified report
Thursday, June 4, 2026
3 NWS warnings — hail up to 0.88"
“At 157 PM MDT, Doppler radar was tracking a strong thunderstorm near Powder River Rest Area, which is 24 miles southeast of Buffalo, moving east at 30 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. This strong thunderstorm will be near...”
“At 157 PM MDT, Doppler radar was tracking a strong thunderstorm near Powder River Rest Area, which is 24 miles southeast of Buffalo, moving east at 30 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. This strong thunderstorm will be near...”
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.88" Johnson County NWS severe weather mention
- Hail 0.5" Johnson County NWS severe weather mention
Friday, May 29, 2026
1 NWS warning — hail up to 0.5"
“At 423 PM MDT, Doppler radar was tracking a strong thunderstorm near Fort Reno Historical Site, which is 24 miles northeast of Kaycee, moving northwest at 15 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.”
- Hail 0.5" Johnson County NWS severe weather mention
Wednesday, May 13, 2026
1 NWS warning — wind gusts up to 50 mph
“At 308 PM MDT, Doppler radar was tracking a strong thunderstorm 12 miles southeast of Kaycee, moving northeast at 30 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. This storm will remain over mainly rural areas of northeastern Natrona and southeastern Johnson Counties, including the following locations... Sussex.”
- Wind 50 mph Johnson County NWS severe weather mention
Saturday, April 11, 2026
1 SPC verified storm report — wind gusts up to 63 mph
“Mesonet station PC460 Buffalo South (PC). (RIW)”
- Wind 63 mph 2 SSW Buffalo SPC verified report
Today's severe weather outlook
Common questions
When was the last severe storm in Johnson County, WY?
The most recent recorded event was on Sep 18, 2026. Official NWS and SPC records show 85 severe weather events in Johnson 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 Johnson County recently?
Yes — 56 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 Johnson 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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