⚠️ Severe Thunderstorm Warning – Portage, WI; Waupaca, WI; Waushara, WI; Winnebago, WI – Friday, September 4, 2026

Severe Thunderstorm Warning issued September 4 at 1:06AM CDT until September 4 at 1:45AM CDT by NWS Green Bay WI

Details

SVRGRB

The National Weather Service in Green Bay has issued a

* Severe Thunderstorm Warning for…
Eastern Portage County in central Wisconsin…
Northern Waushara County in central Wisconsin…
Northwestern Winnebago County in east central Wisconsin…
Waupaca County in northeastern Wisconsin…

* Until 145 AM CDT.

* At 106 AM CDT, a severe thunderstorm was located over Chain O’
Lakes-King, or 6 miles west of Waupaca, moving east at 35 mph.

HAZARD…Golf ball size 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.

* This severe thunderstorm will be near…
Chain O’ Lakes-King and Hartman Creek State Park around 110 AM CDT.
Waupaca around 115 AM CDT.
Fremont around 130 AM CDT.

Other locations impacted by the severe thunderstorm include King,
Rural, Sheridan, Emmons Creek Barrens, Scandinavia, Lind Center,
Ogdensburg, Weyauwega, Manawa and Royalton.

Instructions

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.

Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.