128
FLUS43 KMKX 191858
HWOMKX

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
158 PM CDT Sat Jul 19 2025

WIZ046-047-051-052-056>060-062>072-201900-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
158 PM CDT Sat Jul 19 2025

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

.DAY ONE...Tonight

Widely scattered thunderstorms (15 to 35 percent chances) are
expected along a cold front late this afternoon into this evening.
Expecting briefly gusty winds and potential for some small hail
with these storms.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

A moderate swim risk is possible from Milwaukee southward early
Sunday. Breaking waves and currents are expected. Stay away from
dangerous areas like piers, breakwalls, and river outlets.

There are on and off chances for thunderstorms next week, with
the best chances Tuesday night and again Wednesday night into
Thursday.

Heat index values will likely exceed 100 degrees on Wednesday,
with some areas seeing above 105 degree heat index values.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

$$

LMZ643>646-201900-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
158 PM CDT Sat Jul 19 2025

This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.

.DAY ONE...Tonight

Additional isolated to scattered thunderstorms may develop late
this afternoon into this evening along a cold front.

A brief period of gusty northerly winds up to 25 kt are possible
tonight in the wake of a cold front.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

There are on and off chances for thunderstorms next week, with
the best chances Tuesday night and again Wednesday night into
Thursday.

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-201900-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
158 PM CDT Sat Jul 19 2025

This Hazardous Weather Outlook is for the open waters of Lake Michigan.

.DAY ONE...Tonight

There is a chance of thunderstorms through late this evening.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

A few thunderstorms may develop across the far southern open
waters Sunday, lingering into Sunday evening.

There are on and off chances for thunderstorms through next week,
with the best chances Tuesday night and again Wednesday night
through Thursday.

$$


www.weather.gov/mkx