Severe Thunderstorm Warning — Marathon County, Wisconsin
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 1:16AM CDT until August 12 at 1:45AM CDT by NWS Green Bay WI
At 116 AM CDT, a severe thunderstorm was located 9 miles north of Wittenberg, or 12 miles south of Antigo, moving east at 25 mph. HAZARD...Two inch hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. Other locations impacted by the severe thunderstorm include Birnamwood, Aniwa, Elmhurst, Mattoon and Phlox.
Effective August 12, 2026 at 2:16 AM ET · Expires August 12, 2026 at 2:45 AM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Green Bay WI
Expires
August 12, 2026 at 2:45 AM ET
Last Checked
3 minutes ago
What To Do
📋 Official NWS Guidance
Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. This storm is capable of producing dangerous hail and damaging winds.
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Get Severe Thunderstorm Warning Alerts for Marathon County
StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for Marathon County, Wisconsin?
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 (3 minutes ago). It's set to expire August 12, 2026 at 2:45 AM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Marathon County?
Download StormCast free on Google Play and set Marathon County, Wisconsin 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.