⚠️ Severe Thunderstorm Warning – Columbia, WI; Dane, WI – Sunday, August 9, 2026

Severe Thunderstorm Warning issued August 9 at 9:45AM CDT until August 9 at 10:30AM CDT by NWS Milwaukee/Sullivan WI

Details

SVRMKX

The National Weather Service in Milwaukee/Sullivan has issued a

* Severe Thunderstorm Warning for…
Southern Columbia County in south central Wisconsin…
Dane County in south central Wisconsin…

* Until 1030 AM CDT.

* At 945 AM CDT, a severe thunderstorm was located near Deforest, or
near Windsor, moving east at 30 mph.

HAZARD…60 mph wind gusts and penny size hail.

SOURCE…Radar indicated.

IMPACT…Expect damage to roofs, siding, and trees.

* Locations impacted include…
Madison, Sun Prairie, Fitchburg, Middleton, Stoughton, Waunakee,
Verona, Oregon, McFarland, Monona, Mount Horeb, Windsor, Edgerton,
Columbus, Prairie Du Sac, Marshall, Sauk City, Lake Wisconsin,
Deforest, and Cottage Grove.

People attending Madison Ride the Drive , and Belleville Community
Picnic should seek safe shelter immediately!

Other landmarks included are the following Locations Wisconsin State
Capitol and Gibraltar Rock Natural Area County Park.

Instructions

For your protection move to an interior room on the lowest floor of a
building.

Large hail, damaging wind, and continuous cloud to ground lightning
are occurring with this storm. Move indoors immediately. Lightning is
one of nature’s leading killers. Remember, if you can hear thunder,
you are close enough to be struck by lightning.

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