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Great Lakes Forecast
Issued by NWS
Issued by NWS
546 FZUS63 KMKX 120752 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 252 AM CDT Fri Jul 12 2024 FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON Lake Michigan. Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the wave, along with the average height of the highest 10% of the waves which will occasionally be encountered. .SYNOPSIS... Light winds prevail across the open waters this morning, which has allowed areas of fog to form over the northern third of the lake. Visibilities below one mile will be possible within areas of fog, with a dense fog advisory in effect through 9 AM CDT/10 AM EDT this morning. Fog is expected to dissipate following sunrise, giving way to continued light winds this afternoon. Isolated showers and storms are possible over the open waters Saturday afternoon and evening, with better chances for showers and storms arriving Sunday & Monday as 29.5 inch low pressure develops over Ontario. A few storms could become severe on Sunday and Monday. Winds will turn out of the west and northwest on Tuesday as a cold front moves across the open waters. LMZ261-362-364-563-121515- Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM 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 5 NM offshore- Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to Mid Lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI- 252 AM CDT Fri Jul 12 2024 STURGEON BAY WI TO POINT BETSIE MI NORTH... ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... .TODAY...South winds 5 to 10 kt increasing to 10 to 15 kt. Patchy fog this morning. Waves 1 to 2 ft. .TONIGHT...South winds 5 to 10 kt. Waves 1 to 2 ft. .SATURDAY...South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 2 ft. .SATURDAY NIGHT...South winds 10 to 20 kt diminishing to 10 to 15 kt. Waves 1 to 2 ft. .SUNDAY...South winds 10 to 20 kt becoming southwest. Chance of showers in the morning. Waves 1 to 3 ft. .SUNDAY NIGHT...Southwest winds 10 to 15 kt diminishing to 5 to 10 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft. .MONDAY...Southwest winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 2 ft. .TUESDAY...West winds 10 to 20 kt. Waves 1 to 3 ft. $$ LMZ366-565-567-868-121515- Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to Mid Lake- Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid Lake- 252 AM CDT Fri Jul 12 2024 STURGEON BAY WI TO POINT BETSIE MI SOUTH TO SHEBOYGAN WI TO PENTWATER MI... .TODAY...South winds less than 10 kt increasing to 5 to 10 kt. Waves 1 ft or less. .TONIGHT...South winds 5 to 10 kt. Waves 1 ft or less. .SATURDAY...South winds 5 to 10 kt increasing to 10 to 20 kt. Waves 1 to 2 ft. .SATURDAY NIGHT...South winds 10 to 20 kt diminishing to 10 to 15 kt. Waves 1 to 2 ft. .SUNDAY...South winds 10 to 20 kt. Waves 1 to 3 ft. .SUNDAY NIGHT...Southwest winds 10 to 20 kt diminishing to 10 to 15 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft. .MONDAY...Southwest winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 2 ft. .TUESDAY...Northwest winds 10 to 15 kt becoming west 10 to 20 kt. Waves 1 to 3 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-121515- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 252 AM CDT Fri Jul 12 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TODAY...Northeast winds 5 to 10 kt becoming north. Waves 1 ft or less. .TONIGHT...North winds 5 to 10 kt veering to south. Waves 1 ft or less. .SATURDAY...South winds 5 to 10 kt increasing to 10 to 20 kt. Waves 1 to 2 ft. .SATURDAY NIGHT...South winds 10 to 15 kt. Waves 1 to 2 ft. .SUNDAY...South winds 10 to 20 kt. Chance of showers and thunderstorms in the morning. Waves 1 to 3 ft. .SUNDAY NIGHT...Southwest winds 10 to 20 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft. .MONDAY...Southwest winds 10 to 20 kt. Waves 1 to 3 ft. .TUESDAY...West winds 10 to 20 kt becoming northwest. Waves 1 to 3 ft. $$ LMZ761-121515- MAFOR 1210/ MICHIGAN NORTH 12400 13410 13400. Waves 1 foot or less. MICHIGAN SOUTH 13100 12800 11100 12300. Waves 1 foot or less. $$ Quigley Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes