Severe Thunderstorm Warning — Portage 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 12:16AM CDT until August 12 at 12:30AM CDT by NWS Green Bay WI
At 1216 AM CDT, a severe thunderstorm was located 11 miles north of Wisconsin Rapids, moving southeast at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Other locations impacted by the severe thunderstorm include Junction City, Milladore, Sherry and Blenker.
Effective August 12, 2026 at 1:16 AM ET · Expires August 12, 2026 at 1:30 AM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Green Bay WI
Expires
August 12, 2026 at 1:30 AM ET
Last Checked
7 minutes ago
What To Do
📋 Official NWS Guidance
Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. Torrential rainfall is also occurring with this storm and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
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Get Severe Thunderstorm Warning Alerts for Portage County
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Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for Portage 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 (7 minutes ago). It's set to expire August 12, 2026 at 1:30 AM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Portage County?
Download StormCast free on Google Play and set Portage 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.