Hazardous Weather Outlook
Issued by NWS Milwaukee/Sullivan, WI

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FLUS43 KMKX 041857
HWOMKX

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
157 PM CDT Fri Jul 4 2025

WIZ046-047-051-052-056>060-062>072-051900-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
157 PM CDT Fri Jul 4 2025

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

.DAY ONE...Tonight

Heat index values around 95 are possible through late this
afternoon.

An Air Quality Advisory has been issued by the Wisconsin
Department of Natural Resources for Ozone, which is expected to
reach the unhealthy level for sensitive groups. This is in effect
for Kenosha, Milwaukee, Ozaukee, and Racine counties until 11 pm
CDT.

.DAYS TWO THROUGH SEVEN...Saturday through Friday

Heat indices will again warm to around 95 degrees Saturday
afternoon.

Thunderstorms are likely later Saturday afternoon into Sunday
morning, including the potential for gusty winds, frequent
lightning, and heavy rain.

There will be additional chances for scattered storms for Tuesday
through the end of the week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed later Saturday.

$$

LMZ643>646-051900-
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-
157 PM CDT Fri Jul 4 2025

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

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Friday

Thunderstorms are likely Saturday night through Sunday morning.

There will be additional chances for scattered storms for Tuesday
through the end of the week.

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-051900-
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-
157 PM CDT Fri Jul 4 2025

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

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Friday

Thunderstorms are likely Saturday night through Sunday morning.

There will be additional chances for scattered storms for Tuesday
through the end of the week.

$$


www.weather.gov/mkx