Severe Thunderstorm Warning — Johnson County, Wyoming
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Current Status
⛈️ Active: Severe Thunderstorm Warning
Severe Thunderstorm Warning issued August 22 at 7:17PM MDT until August 22 at 8:00PM MDT by NWS Riverton WY
SVRRIW The National Weather Service in Riverton has issued a * Severe Thunderstorm Warning for... Northeastern Natrona County in central Wyoming... Southeastern Johnson County in north central Wyoming... * Until 800 PM MDT. * At 717 PM MDT, a severe thunderstorm was located near Edgerton, which is 27 miles southeast of Kaycee, moving southeast at 10 mph. HAZARD...60 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * This severe thunderstorm will remain over mainly rural areas of northeastern Natrona and southeastern Johnson Counties.
Effective August 22, 2026 at 9:17 PM ET · Expires August 22, 2026 at 10:00 PM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Riverton WY
Expires
August 22, 2026 at 10:00 PM ET
Last Checked
2 days ago
What To Do
📋 Official NWS Guidance
For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Other Active Alerts in Wyoming
Severe Thunderstorm Watch
Severe Thunderstorm Warning
Flood Advisory
Flood Advisory
Flood Advisory
Severe Thunderstorm Warning
Get Severe Thunderstorm Warning Alerts for Johnson County
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Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for Johnson County, Wyoming?
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Is this Severe Thunderstorm Warning currently active?
Yes — this alert is active as of our last check (2 days ago). It's set to expire August 22, 2026 at 10:00 PM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Johnson County?
Download StormCast free on Google Play and set Johnson County, Wyoming as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.