⚠️ Severe Thunderstorm Warning – Dane, WI; Dodge, WI; Jefferson, WI; Milwaukee, WI; Ozaukee, WI; Washington, WI; Waukesha, WI – Tuesday, August 18, 2026

Severe Thunderstorm Warning issued August 18 at 6:23PM CDT until August 18 at 7:30PM CDT by NWS Milwaukee/Sullivan WI

Details

SVRMKX

The National Weather Service in Milwaukee/Sullivan has issued a

* Severe Thunderstorm Warning for…
Southwestern Ozaukee County in southeastern Wisconsin…
Northern Milwaukee County in southeastern Wisconsin…
Waukesha County in southeastern Wisconsin…
Southeastern Dane County in south central Wisconsin…
Southern Washington County in southeastern Wisconsin…
Jefferson County in southeastern Wisconsin…
Southeastern Dodge County in southeastern Wisconsin…

* Until 730 PM CDT.

* At 623 PM CDT, severe thunderstorms were located along a line
extending from near Jackson to near Lac La Belle to near Lake Mills
to near Stoughton, moving southeast at 35 mph.

HAZARD…60 mph wind gusts and penny size hail.

SOURCE…Radar indicated.

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

* Locations impacted include…
Milwaukee, Waukesha, West Allis, Wauwatosa, New Berlin, Brookfield,
Menomonee Falls, Muskego, Watertown, Mequon, Whitewater, Hartford,
Whitefish Bay, Pewaukee, Stoughton, Fort Atkinson, Brown Deer,
Grafton, Cedarburg, and Port Washington.

Other landmarks included are the following Locations Timmerman
Airport, Froedert & the Medical College, Pewaukee Lake, Ottawa Lake
Recreation Area, and Pinewoods Campground.

Instructions

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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.