August 12, 2026

Midwest Storm Chasers

Live Weather Coverage & Severe Storm Reporting

⚠️ Severe Thunderstorm Warning – Marathon, WI; Portage, WI; Wood, WI – Tuesday, August 11, 2026

Event Severe Thunderstorm Warning
Severity Severe
Urgency Immediate
Certainty Observed
Area Marathon, WI; Portage, WI; Wood, WI
Effective 8/11/2026, 11:26:00 PM CDT
Expires 8/12/2026, 12:30:00 AM CDT

Severe Thunderstorm Warning issued August 11 at 11:26PM CDT until August 12 at 12:30AM CDT by NWS Green Bay WI

Details

SVRGRB

The National Weather Service in Green Bay has issued a

* Severe Thunderstorm Warning for…
South Central Marathon County in central Wisconsin…
Northwestern Portage County in central Wisconsin…
Northeastern Wood County in central Wisconsin…

* Until 1230 AM CDT.

* At 1126 PM CDT, a severe thunderstorm was located 11 miles
northeast of Marshfield, or 22 miles southwest of Wausau, 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
Rozellville, Halder, Big Eau Pleine County Park, Auburndale,
Blenker, Milladore, Sherry and Junction City.

Instructions

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.


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