⚠️ Severe Thunderstorm Warning – Jefferson, WI; Waukesha, WI – Monday, July 27, 2026

Severe Thunderstorm Warning issued July 27 at 10:00AM CDT until July 27 at 11:00AM CDT by NWS Milwaukee/Sullivan WI

Details

SVRMKX

The National Weather Service in Milwaukee/Sullivan has issued a

* Severe Thunderstorm Warning for…
Waukesha County in southeastern Wisconsin…
Eastern Jefferson County in southeastern Wisconsin…

* Until 1100 AM CDT.

* At 1000 AM CDT, severe thunderstorms were located along a line
extending from near Watertown to near Palmyra, moving east at 35
mph.

HAZARD…60 mph wind gusts and half dollar size hail.

SOURCE…Radar indicated.

IMPACT…Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.

* Locations impacted include…
Northern Milwaukee, Waukesha, West Allis, Wauwatosa, New Berlin,
Brookfield, Greenfield, Menomonee Falls, Muskego, Watertown,
Whitewater, Pewaukee, Sussex, Hartland, Hales Corners, Mukwonago,
Delafield, Elm Grove, Wales, and Okauchee Lake.

Other landmarks included are the following Locations Pewaukee Lake,
Ottawa Lake Recreation Area, and Pinewoods Campground.

Instructions

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

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