Severe Thunderstorm Warning — Washington County, Missouri
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 12 at 6:53PM CDT until August 12 at 7:15PM CDT by NWS St Louis MO
At 653 PM CDT, severe thunderstorms were located along a line from 5 miles northwest of Ste. Genevieve to over Irondale, or along a line from 5 miles northwest of Ste. Genevieve to 7 miles west of Leadwood, moving southeast at 40 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Potosi, Mineral Point, Bonne Terre, Leadwood, Desloge, Park Hills, Frankclay, French Village, Leadington, Irondale, Farmington, Bloomsdale, Rocky Ridge, Weingarten, Bismarck, Iron Mountain, Iron Mountain Lake, Doe Run and Knob Lick. This includes the following State Parks... St. Joe State Park, St. Francois State Park and Missouri Mines Historic Site. This includes Interstate 55 in Missouri between exits 154 and 162.
Effective August 12, 2026 at 7:53 PM ET · Expires August 12, 2026 at 8:15 PM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS St Louis MO
Expires
August 12, 2026 at 8:15 PM ET
Last Checked
22 minutes ago
What To Do
📋 Official NWS Guidance
Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds.
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Get Severe Thunderstorm Warning Alerts for Washington County
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Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for Washington County, Missouri?
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 (22 minutes ago). It's set to expire August 12, 2026 at 8:15 PM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Washington County?
Download StormCast free on Google Play and set Washington County, Missouri 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.