FLUS43 KMKX 181148 HWOMKX Hazardous Weather Outlook National Weather Service Milwaukee/Sullivan WI 648 AM CDT Sat Jul 18 2026 WIZ046-047-051-052-056>060-062>072-191200- Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge- Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee- Lafayette-Green-Rock-Walworth-Racine-Kenosha- 648 AM CDT Sat Jul 18 2026 This Hazardous Weather Outlook is for portions of east central Wisconsin, south central Wisconsin and southeast Wisconsin. .DAY ONE...Today and Tonight Wildfire smoke is expected to contribute to lower visibilities and unhealthy air quality again this weekend especially Saturday night and Sunday. High Swim Risk conditions for area beaches in Ozaukee, Milwaukee, Racine and Kenosha counties. Moderate swim risk for Sheboygan county beaches this evening through tonight. .DAYS TWO THROUGH SEVEN...Sunday through Friday Wildfire smoke is expected to contribute to lower visibilities and unhealthy air quality through Sunday. Numerous thunderstorms, possibly severe, Monday into Monday night. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed Monday and Monday night. $$ LMZ643>646-191200- Sheboygan to Port Washington WI- Port Washington to North Point Light WI- North Point Light to Wind Point WI- Wind Point WI to Winthrop Harbor IL- 648 AM CDT Sat Jul 18 2026 This Hazardous Weather Outlook is for the nearshore waters from Sheboygan Wisconsin to Winthrop Harbor Illinois. .DAY ONE...Today and Tonight Wildfire smoke is expected to contribute to lower visibilities and unhealthy air quality again this weekend especially Saturday night and Sunday. A Dense Smoke Advisory is in effect this afternoon through Sunday night. A Small Craft Advisory is in effect this evening into tonight for building waves. .DAYS TWO THROUGH SEVEN...Sunday through Friday Numerous thunderstorms, possibly severe, Monday afternoon into Monday night. $$ LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-191200- 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- 648 AM CDT Sat Jul 18 2026 This Hazardous Weather Outlook is for the open waters of Lake Michigan. .DAY ONE...Todayand Tonight Widespread smoke will return from north to south across the lake from this afternoon into the evening, and continuing into Sunday. A Dense Smoke Advisory is in effect this afternoon through Sunday night. .DAYS TWO THROUGH SEVEN...Sunday through Friday Widespread smoke will return from north to south across the lake from through Sunday. The Dense Smoke Advisory remains in effect through Sunday night. Numerous thunderstorms,possibly severe, for Monday into Monday night. Southerly gales possible Monday afternoon and evening. $$ www.weather.gov/mkx