824 FZUS63 KMKX 091926 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 226 PM CDT Thu Jul 9 2026 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 to modest north winds over the northern and central portions of the lake will slowly move south into the southern portion of the lake into the early evening. Light to modest southwest winds over the southern portion of the lake will shift northerly during this time. Some fog may develop into tonight with patchy dense fog possible. Winds will remain north to northeast on Friday, as high pressure around 30.0 inches builds into the the region from the north. The high should shift southeast over the weekend, which should continue to bring light to modest winds. LMZ261-362-364-366-563-565-567-868-100315- 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- 226 PM CDT Thu Jul 9 2026 SHEBOYGAN WI TO PENTWATER MI NORTH... .TONIGHT...North winds 10 to 15 kt diminishing to 5 to 10 kt. Waves 1 to 2 ft. .FRIDAY...North winds 5 to 10 kt increasing to 10 to 20 kt. Waves 1 to 3 ft. .FRIDAY NIGHT...North winds 10 to 20 kt becoming northeast 10 to 15 kt late in the evening, then diminishing to 5 to 10 kt after midnight becoming northeast 5 to 10 kt late. Waves 1 to 3 ft subsiding to 1 to 2 ft. .SATURDAY...East winds 5 to 10 kt becoming northeast 10 to 20 kt in the afternoon. Waves 1 ft or less. .SATURDAY NIGHT...East winds 10 to 15 kt veering to south 5 to 10 kt. Waves 1 ft or less. .SUNDAY...South winds 10 to 15 kt becoming southwest 10 to 20 kt. Waves 1 to 2 ft. .SUNDAY NIGHT...Southwest winds 10 to 20 kt. Waves 1 to 2 ft. .MONDAY...Southwest winds 10 to 20 kt increasing to 15 to 25 kt. Waves 2 to 4 ft. .TUESDAY...Southwest winds 15 to 25 kt increasing to 30 kt. Waves 3 to 5 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-100315- 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- 226 PM CDT Thu Jul 9 2026 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TONIGHT...North winds 10 to 15 kt diminishing to 5 to 10 kt. Scattered showers with isolated thunderstorms this evening, then scattered showers overnight. Patchy fog overnight. Waves 1 to 2 ft. .FRIDAY...North winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft. .FRIDAY NIGHT...North winds 10 to 20 kt becoming northeast 10 to 15 kt after midnight, then diminishing to 5 to 10 kt late. Waves 2 to 4 ft subsiding to 1 to 3 ft. .SATURDAY...Northeast winds 5 to 10 kt becoming north 10 to 20 kt in the afternoon. Waves 1 to 2 ft. .SATURDAY NIGHT...Northeast winds 10 to 15 kt becoming east 5 to 10 kt. Waves 1 to 2 ft. .SUNDAY...East winds 5 to 10 kt becoming northeast. Waves 1 ft or less. .SUNDAY NIGHT...Northeast winds 5 to 10 kt veering to south. Waves 1 ft or less. .MONDAY...South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 2 ft. .TUESDAY...West winds 10 to 15 kt becoming southwest 10 to 20 kt. Waves 1 to 3 ft. $$ LMZ761-100315- MAFOR 0922/ MICHIGAN NORTH 11810 14800 12810 11820. Waves 2 feet or less. MICHIGAN SOUTH 11810 19816 13800 19806 13810 11820. Waves 1 foot or less tonight. Waves 1 to 3 feet Friday. $$ Gehring Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes  561 FZUS63 KDTX 091945 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 345 PM EDT Thu Jul 9 2026 For waters beyond five nautical miles off shore on Lake Huron Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS...A weak low pressure system, 29.80 inches, and trailing cold front will trek through the Great Lakes region today, bringing scattered rain showers and isolated thunderstorms. A high pressure system, 30.20 inches, is then expected to develop over the region and persist throughout the weekend. LHZ361-100400- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 345 PM EDT Thu Jul 9 2026 .TONIGHT...Light and variable winds becoming northwest 5 to 10 knots after midnight. Waves 2 feet or less. .FRIDAY...North winds 5 to 10 knots in the morning becoming light and variable. Waves 2 feet or less. .FRIDAY NIGHT...Light and variable winds. Waves 2 feet or less. .SATURDAY...Light and variable winds becoming east 5 to 10 knots early in the afternoon. Waves 2 feet or less. .SATURDAY NIGHT...Light and variable winds becoming south 5 to 10 knots in the late evening and overnight. Waves 2 feet or less. .SUNDAY...South winds 5 to 10 knots backing to the east late in the afternoon...then veering to the southwest late in the evening. Waves 2 feet or less. .MONDAY...Southwest winds 10 to 15 knots. Waves 1 to 3 feet building to 3 to 5 feet by midnight. .TUESDAY...West winds 15 to 20 knots decreasing to 10 to 15 knots by midnight. Waves 3 to 5 feet. $$ LHZ362-363-100400- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 345 PM EDT Thu Jul 9 2026 .TONIGHT...Light and variable winds. Waves 2 feet or less. .FRIDAY...Light and variable winds. Waves 2 feet or less. .FRIDAY NIGHT...Light and variable winds. Waves 2 feet or less. .SATURDAY...Light and variable winds. Waves 2 feet or less. .SATURDAY NIGHT...Light and variable winds. Waves 2 feet or less. .SUNDAY...Light and variable winds becoming southeast 5 to 10 knots. Waves 2 feet or less. .MONDAY...Southwest winds 5 to 10 knots. Waves 1 to 3 feet. .TUESDAY...Southwest winds 10 to 15 knots. Waves 2 to 4 feet. $$ LHZ462>464-100400- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 345 PM EDT Thu Jul 9 2026 .TONIGHT...Light and variable winds becoming north 5 to 10 knots early in the morning. Numerous thunderstorms and scattered showers in the evening. Waves 2 feet or less. .FRIDAY...North winds 5 to 10 knots increasing to 10 to 15 knots late in the afternoon. Waves 2 feet or less. .FRIDAY NIGHT...North winds 10 to 15 knots becoming northeast 5 to 10 knots in the late evening and overnight. Waves 1 to 3 feet. .SATURDAY...North winds 5 to 10 knots. Waves 2 feet or less. .SATURDAY NIGHT...Northeast winds 5 to 10 knots becoming light and variable. Waves 1 to 3 feet. .SUNDAY...Light and variable winds becoming southeast 5 to 10 knots late in the evening. Waves 2 feet or less. .MONDAY...South winds 5 to 10 knots. Waves 2 feet or less. .TUESDAY...Southwest winds 5 to 10 knots becoming west 10 to 15 knots . Waves 1 to 3 feet building to 2 to 4 feet . $$ LHZ461-100400- MAFOR 0921/ HURON NORTH 11100 14700 12800 11700. Waves nearly calm. HURON SOUTH 11109 11800 19809 15800. Waves 2 feet or less. $$ TF Experimental modernized open lake forecast is available online at weather.gov/dtx/glftable (all lower case) Graphical marineforecasts are available online at weather.gov/greatlakes (all lower case)  680 FZUS63 KDTX 091946 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 346 PM EDT Thu Jul 9 2026 Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS...A weak low pressure system, 29.80 inches, and trailing cold front will trek through the Great Lakes region today, bringing scattered showers and isolated thunderstorms. A high pressure system, 30.20 inches, is then expected to develop over the region and persist throughout the weekend. LCZ460-100400- Lake St Clair- 346 PM EDT Thu Jul 9 2026 .TONIGHT...West winds 5 to 10 knots veering to the northwest early in the morning. Variable cloudiness. Numerous showers and thunderstorms early in the evening...then scattered showers and thunderstorms late in the evening. Waves 2 feet or less. .FRIDAY...Northeast winds 5 to 10 knots. Partly sunny. A chance of light showers late in the afternoon. Waves 2 feet or less. .FRIDAY NIGHT...Northeast winds 10 to 15 knots becoming north 5 to 10 knots after midnight. Partly cloudy. Waves 2 feet or less. .SATURDAY...North winds 10 to 15 knots becoming northeast 5 to 10 knots in the late morning and afternoon. Partly sunny. Waves 2 feet or less. .SATURDAY NIGHT...Northeast winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. Mostly clear. Waves 2 feet or less. .SUNDAY...East winds 5 to 10 knots. Clear. Waves 2 feet or less. .MONDAY...South winds 5 to 10 knots. Clear. Waves 2 feet or less. .TUESDAY...Southwest winds 10 to 15 knots. Clear. Waves 2 feet or less. $$ TF Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes