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Great Lakes Forecast
Issued by NWS
Issued by NWS
726 FZUS63 KMKX 041919 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 219 PM CDT Thu Jul 4 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... Weak high pressure around 29.9 inches over Lake MI this afternoon will slide eastward this afternoon and evening, as a couple weak low pressure areas develop east across MN and from IL into IN during the afternoon and early evening. Light and variable winds are expected over Lake MI. More organized south to southeast winds will develop over the south half tonight into Friday morning, with east northeasterly winds over the north half as low pressure around 29.7 inches moves from MN across central WI. This low pressure area will gradually track eastward across the middle of Lake Michigan early Friday afternoon. Modest southwest winds will prevail over central and southern Lake MI at this time with northeasterly winds to the north. The winds will then trend to north northwest Friday night into Saturday morning as the low moves away across Lake Huron and southern Ontario. The winds will then back to southwest during the afternoon and evening, and southerly for Sunday as high pressure around 30.0 inches moves across Lake MI and tracks to the lower Great Lakes. LMZ261-362-364-366-563-565-567-868-042130- 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 Point Betsie to Manistee MI 5 NM offshore to Mid Lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI- 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- 219 PM CDT Thu Jul 4 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .REST OF TODAY...Southwest winds 5 to 10 kt backing to southeast. Waves 1 ft or less. .TONIGHT...East winds 5 to 10 kt increasing to 10 to 15 kt. Patchy fog overnight. Chance of showers and slight chance of thunderstorms overnight. Waves 1 to 2 ft. .FRIDAY...East winds 10 to 20 kt. Patchy fog. Showers likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. Waves 2 to 4 ft. .FRIDAY NIGHT...North winds 10 to 20 kt. Chance of showers. Waves 2 to 4 ft. .SATURDAY...Northwest winds 10 to 20 kt becoming west. Waves 2 to 4 ft. .SATURDAY NIGHT...Southwest winds 10 to 20 kt diminishing to 5 to 10 kt. Waves 1 to 2 ft. .SUNDAY...South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft. .MONDAY...South winds 10 to 20 kt. Chance of showers. Waves 1 to 2 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-042130- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 219 PM CDT Thu Jul 4 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TODAY...South winds 5 to 10 kt becoming southeast. Isolated showers. Waves 1 ft or less. .TONIGHT...East winds 5 to 10 kt becoming south. Areas of dense fog overnight. Chance of showers and thunderstorms overnight. Waves 1 ft or less. .FRIDAY...South winds 10 to 15 kt becoming southwest 10 to 20 kt. Chance of showers and thunderstorms in the morning, then chance of showers in the afternoon. Waves 2 to 4 ft. .FRIDAY NIGHT...West winds 10 to 20 kt becoming northwest. Chance of showers. Waves 2 to 4 ft. .SATURDAY...Northwest winds 10 to 20 kt becoming west. Waves 3 to 5 ft. .SATURDAY NIGHT...Southwest winds 10 to 15 kt diminishing to 5 to 10 kt. Waves 1 to 3 ft subsiding to 1 to 2 ft. .SUNDAY...South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft. .MONDAY...South winds 10 to 15 kt. Chance of showers. Waves 1 to 2 ft. $$ LMZ761-042130- MAFOR 0416/ MICHIGAN NORTH 11600 11400 11200 12100 11110 11210 11216. Waves 2 feet or less. MICHIGAN SOUTH 12400 11200 12300 11404 12410. A chance of showers and thunderstorms overnight and Friday morning. Waves 2 feet or less. $$ Gehring Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes