683 FLUS43 KMKX 282350 HWOMKX Hazardous Weather Outlook National Weather Service Milwaukee/Sullivan WI 650 PM CDT Sun Jun 28 2026 WIZ046-047-051-052-056>060-062>072-300000- Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge- Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee- Lafayette-Green-Rock-Walworth-Racine-Kenosha- 650 PM CDT Sun Jun 28 2026 This Hazardous Weather Outlook is for portions of east central Wisconsin, south central Wisconsin and southeast Wisconsin. .DAY ONE...Tonight Chances for additional storm development tonight toward central Wisconsin with only slight chances from Madison to Milwaukee. .DAYS TWO THROUGH SEVEN...Monday through Sunday Hot and humid conditions with daily maximum heat index values of 95 to 108 degrees for much of the week. The hottest days will be Monday and Tuesday. An Extreme Heat Warning is in effect those days but additional heat headlines will likely be needed. High swim risk conditions from early Monday morning into the evening for the Lake Michigan beaches in Sheboygan and Ozaukee Counties with moderate swim risk conditions to the south. beaches. Daily chances for thunderstorms Tuesday night through the end of the week. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$ LMZ643>646-300000- Sheboygan to Port Washington WI- Port Washington to North Point Light WI- North Point Light to Wind Point WI- Wind Point WI to Winthrop Harbor IL- 650 PM CDT Sun Jun 28 2026 This Hazardous Weather Outlook is for the nearshore waters from Sheboygan Wisconsin to Winthrop Harbor Illinois. .DAY ONE...Tonight Scattered thunderstorms, especially north of North Point Lighthouse. .DAYS TWO THROUGH SEVEN...Monday through Sunday A Small Craft Advisory is in effect from early Monday morning into the evening for breezy south winds and building waves. Daily chances for thunderstorms Wednesday through the end of the week, but with better chances to the north of North Point Lighthouse on most days. $$ LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-300000- 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- 650 PM CDT Sun Jun 28 2026 This Hazardous Weather Outlook is for the open waters of Lake Michigan. .DAY ONE...Tonight Scattered thunderstorms. .DAYS TWO THROUGH SEVEN...Monday through Sunday Areas of dense fog may occur at times due to a very warm and humid airmass over the colder waters of Lake Michigan. Daily chances for thunderstorms Tuesday through the end of the week. $$ www.weather.gov/mkx