Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
607 AM CDT Thu Aug 13 2026

WIZ046-047-051-052-056>060-062>072-141115-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
607 AM CDT Thu Aug 13 2026

This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.

.DAY ONE...Today and Tonight

Dense fog is expected this morning until high clouds spread
overhead. A Dense Fog Advisory is in effect inland from Lake
Michigan until 9am.

There are chances for showers and weak thunderstorms today and
tonight.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

On and off thunderstorms expected Friday through Sunday. Strong to
severe storms become possible this weekend.

Moderate to high swim risk Friday night into Saturday for Lake
Michigan beaches.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

URGENT - WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
503 AM CDT Thu Aug 13 2026

WIZ046-047-051-056>059-062>065-067>070-131400-
/O.NEW.KMKX.FG.Y.0013.260813T1003Z-260813T1400Z/
Marquette-Green Lake-Fond du Lac-Sauk-Columbia-Dodge-Washington-
Iowa-Dane-Jefferson-Waukesha-Lafayette-Green-Rock-Walworth-
Including the cities of Mayville, Lake Geneva, Prairie Du Sac,
Mineral Point, Oxford, Westfield, Beaver Dam, Endeavor,
Germantown, Baraboo, Reedsburg, Columbus, Jefferson, Montello,
Beloit, Brookfield, Muskego, Princeton, Whitewater, East Troy,
Janesville, Blanchardville, Sauk City, Brodhead, Fond Du Lac,
Berlin, Benton, Markesan, Lodi, Argyle, Hartford, Waukesha, Fort
Atkinson, Elkhorn, Watertown, Delavan, Dodgeville, Monroe,
Shullsburg, New Berlin, Madison, Portage, Waupun, West Bend,
Darlington, Menomonee Falls, Belmont, Neshkoro, Lake Wisconsin,
and Barneveld
503 AM CDT Thu Aug 13 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING...

* WHAT...Visibility one-quarter mile or less in dense fog.

* WHERE...Portions of east central, south central, and southeast
  Wisconsin.

* WHEN...Until 9 AM CDT this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

&&

$$

CMILLER

SPECIAL WEATHER STATEMENT
National Weather Service MILWAUKEE/SULLIVAN WI
417 AM CDT Thu Aug 13 2026

WIZ046-047-051-052-056>060-062>072-131415-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
Including the cities of Montello, Westfield, Oxford, Neshkoro,
Endeavor, Berlin, Princeton, Markesan, Fond Du Lac, Plymouth,
Sheboygan Falls, Howards Grove, Oostburg, Baraboo, Reedsburg,
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin,
Lodi, Beaver Dam, Waupun, Mayville, West Bend, Germantown,
Hartford, Mequon, Cedarburg, Grafton, Dodgeville, Mineral Point,
Barneveld, Madison, Watertown, Fort Atkinson, Jefferson,
Waukesha, Brookfield, New Berlin, Menomonee Falls, Muskego,
Milwaukee, Darlington, Shullsburg, Benton, Belmont, Argyle,
Blanchardville, Monroe, Brodhead, Janesville, Beloit, Whitewater,
Delavan, Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha
417 AM CDT Thu Aug 13 2026

...LOCALLY DENSE FOG POSSIBLE OVER SOUTHERN WISCONSIN THIS MORNING...

Fog will be locally dense in pockets over southern Wisconsin from
now through the mid morning. Visibility may be suddenly reduced
to 1/4 mile or less in these dense pockets. Caution is advised for
the morning commute.

At this time the need for a Dense Fog Advisory will be monitored
using surface observation trends, as mid to high level cloud
cover is spreading in from the west. This cloud cover may allow
for some mild improvements in visibility if it holds together.

$$

CMiller

Hazard Report Provided By forecast.weather.gov