Great Lakes Forecast
Issued by NWS
Issued by NWS
264 FZUS63 KMKX 151359 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 859 AM CDT Wed May 15 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... No major changes to the going forecast with this issuance. Low pressure around 29.6 inches will move across the Ohio Valley today, while the surface ridge of 29.9 inches over WI moves across Lake Michigan tonight. Modest northerly winds over the lake today will become light and variable tonight. Light to modest east to southeast winds will then develop for Thursday and Thursday evening as weakening low pressure around 29.6 inches tracks from northern Minnesota into western Lake Superior. Light and variable winds are then expected Friday and Friday night as weak high pressure develops over the lake late on Friday. LMZ261-362-364-366-563-565-567-868-152115- 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- 859 AM CDT Wed May 15 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .REST OF TODAY...Northeast winds 10 to 15 kt increasing to 15 to 25 kt. Waves 2 to 4 ft. .TONIGHT...Northeast winds 10 to 20 kt diminishing to 10 to 15 kt late in the evening, then becoming east after midnight becoming southeast late. Waves 1 to 3 ft subsiding to 1 to 2 ft. .THURSDAY...Southeast winds 5 to 10 kt becoming east 10 to 20 kt. Waves 1 to 3 ft. .THURSDAY NIGHT...Southeast winds 10 to 20 kt diminishing to 5 to 10 kt overnight. Chance of showers. Waves 1 to 3 ft. .FRIDAY...Southeast winds 5 to 10 kt backing to northeast 10 to 15 kt. Chance of showers in the morning. Waves 1 to 2 ft. .FRIDAY NIGHT...East winds 5 to 10 kt becoming northeast. Waves 1 to 2 ft. .SATURDAY...Northeast winds 10 to 15 kt. Waves 1 to 2 ft. .SUNDAY...West winds 10 to 20 kt becoming southwest. Waves 1 to 2 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-152115- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 859 AM CDT Wed May 15 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TODAY...Northeast winds 10 to 20 kt becoming north. Waves 2 to 4 ft. .TONIGHT...North winds 10 to 20 kt veering to east 10 to 15 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft. .THURSDAY...Southeast winds 10 to 15 kt. Chance of showers in the afternoon. Waves 1 to 2 ft. .THURSDAY NIGHT...Southeast winds 10 to 15 kt becoming south 5 to 10 kt. Showers likely in the evening, then chance of showers overnight. Waves 1 to 2 ft. .FRIDAY...East winds 10 to 15 kt becoming northeast. Waves 1 to 3 ft. .FRIDAY NIGHT...Northeast winds 5 to 10 kt. Waves 1 to 3 ft. .SATURDAY...Northeast winds 10 to 15 kt. Waves 1 to 2 ft. .SUNDAY...Northwest winds 10 to 20 kt becoming west. Waves 1 to 2 ft. $$ LMZ761-152115- MAFOR 1516/ MICHIGAN NORTH 11120 12130 11120 11110 11200 11300 11310. Waves 1 to 3 feet subsiding to 1 foot or less this afternoon and tonight. Waves 1 foot or less Thursday morning. MICHIGAN SOUTH 13820 11810 12210 12310. Waves 1 to 3 feet building to 2 to 4 feet this afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet tonight. Waves 2 feet or less Thursday morning. $$ CMiller Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes