####018005297#### FZUS63 KMKX 200735 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 235 AM CDT Sat Apr 20 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... High pressure of 30.3 inches over the central US and deepening low pressure across northern Quebec will maintain west winds over Lake Michigan today. Winds will gradually decrease in intensity through the day today, with lighter winds continuing into Sunday as high pressure approaches from the west. Light and variable winds will then occur with the passage of the high Sunday night. Breezy south winds will then develop for Monday into Tuesday as low pressure approaches the northern Great Lakes from Canada. Winds could approach gale force during this time. LMZ080-669-671-673-675-777-779-870-872-874-876-878-201515- 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- 235 AM CDT Sat Apr 20 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TODAY...West winds 15 to 25 kt diminishing to 10 to 20 kt. Chance of sprinkles this afternoon. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft. .TONIGHT...West winds 10 to 15 kt increasing to 10 to 20 kt. Chance of sprinkles in the evening. Waves 2 to 4 ft. .SUNDAY...West winds 10 to 20 kt becoming southwest. Waves 2 to 4 ft. .SUNDAY NIGHT...West winds 10 to 15 kt diminishing to 5 to 10 kt. Waves 1 to 3 ft. .MONDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt. Waves 1 to 3 ft building to 3 to 5 ft. .MONDAY NIGHT...South winds 15 to 25 kt increasing to 30 kt. Chance of showers. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. .TUESDAY...Southwest winds to 30 kt. Rain showers. Waves 4 to 7 ft occasionally to 9 ft. .WEDNESDAY...North winds 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. $$ LMZ261-362-364-366-563-565-567-868-201515- Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM offshore to Mid Lake- Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and north of a line from Charlevoix MI to South Fox Island 5 NM offshore- Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to Mid Lake- Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to Mid Lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI- Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid Lake- 235 AM CDT Sat Apr 20 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .TODAY...West winds 15 to 25 kt. Chance of sprinkles this afternoon. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .TONIGHT...West winds 10 to 20 kt. Waves 2 to 4 ft. .SUNDAY...West winds 10 to 20 kt increasing to 15 to 25 kt. Waves 3 to 5 ft. .SUNDAY NIGHT...Northeast winds 10 to 20 kt veering to southeast 5 to 10 kt overnight. Waves 1 to 3 ft subsiding to 1 to 2 ft. .MONDAY...South winds 10 to 15 kt increasing to 15 to 25 kt in the afternoon. Waves 1 to 2 ft building to 3 to 5 ft. .MONDAY NIGHT...South winds 15 to 25 kt increasing to 30 kt. Chance of rain showers. Waves 4 to 6 ft occasionally to 8 ft. .TUESDAY...South winds to 30 kt becoming west. Rain showers likely. Waves 4 to 7 ft occasionally to 9 ft. .WEDNESDAY...North winds to 30 kt diminishing to 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. $$ LMZ761-201515- MAFOR 2010/ MICHIGAN NORTH 14630 11620 12610 11620. Waves 3 to 6 feet subsiding to 2 to 4 feet today. Waves 1 to 3 feet tonight. MICHIGAN SOUTH 13630 11620 12610 12620. Waves 4 to 7 feet subsiding to 3 to 6 feet today. Waves 2 to 4 feet subsiding to 1 to 3 feet tonight. $$ Boxell Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes ####018006190#### FZUS63 KDTX 200739 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 339 AM EDT Sat Apr 20 2024 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...Upper level trough settles over the Great Lakes through this weekend maintaining cooler, moderate west to northwest flow. High pressure, 30.10 inches, then briefly tracks across the region Monday. LHZ361-362-201600- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- 339 AM EDT Sat Apr 20 2024 .TODAY...West winds 15 to 20 knots. Gusts to 30 knots late in the afternoon. Waves 4 to 6 feet building to 6 to 9 feet late in the afternoon. Waves occasionally around 12 feet. .TONIGHT...West winds 15 to 20 knots decreasing to 10 to 15 knots in the late evening and overnight. Waves 5 to 7 feet subsiding to 2 to 4 feet early in the morning. Waves occasionally around 10 feet. .SUNDAY...Southwest winds 10 to 15 knots becoming west 15 to 20 knots with gusts to around 30 knots in the late morning and afternoon. Waves 4 to 6 feet building to 6 to 9 feet early in the afternoon. Waves occasionally around 12 feet. .SUNDAY NIGHT...Northwest winds 15 to 20 knots with gusts to around 30 knots decreasing to 5 to 10 knots. Waves 6 to 9 feet subsiding to 3 to 5 feet after midnight. Waves occasionally around 12 feet. .MONDAY...West winds 5 to 10 knots becoming south 10 to 15 knots late in the morning...then increasing to 15 to 20 knots late in the evening. A chance of showers late in the evening. Waves 1 to 3 feet building to 2 to 4 feet late in the afternoon. .TUESDAY...South winds 20 to 25 knots with gusts to around 30 knots becoming southwest 15 to 20 knots with gusts to around 30 knots until early evening...then veering to the north in the late evening and early morning. Showers early in the morning... then a chance of showers until early morning. Waves 3 to 5 feet. .WEDNESDAY...North winds 15 to 20 knots with gusts to around 30 knots becoming northwest 10 to 15 knots in the late evening and early morning. Waves 3 to 5 feet. $$ LHZ363-462-201600- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- 339 AM EDT Sat Apr 20 2024 .TODAY...West winds 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Waves 2 to 4 feet. .TONIGHT...West winds 10 to 15 knots decreasing to 5 to 10 knots after midnight...then increasing to 10 to 15 knots early in the morning. Waves 3 to 5 feet subsiding to 2 to 4 feet early in the morning. .SUNDAY...Southwest winds 10 to 15 knots. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. Waves 4 to 6 feet. .MONDAY...Northwest winds 5 to 10 knots becoming south 10 to 15 knots late in the morning...then increasing to 15 to 20 knots with gusts to around 30 knots late in the evening. A chance of showers late in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the morning...then building to 2 to 4 feet late in the afternoon. Waves occasionally around 8 feet. .TUESDAY...South winds 20 to 25 knots with gusts to 35 knot gales becoming southwest 15 to 20 knots with gusts to around 30 knots until early evening...then veering to the northwest in the late evening and early morning. Showers likely early in the morning... then showers until early evening. A chance of showers in the late evening and early morning. Waves 3 to 5 feet. .WEDNESDAY...North winds 15 to 20 knots with gusts to around 30 knots decreasing to 10 to 15 knots in the late evening and early morning. A chance of rain and snow showers early in the morning. Waves 4 to 6 feet. Waves occasionally around 8 feet. $$ LHZ463-464-201600- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 339 AM EDT Sat Apr 20 2024 .TODAY...West winds 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .TONIGHT...West winds 10 to 15 knots decreasing to 5 to 10 knots in the late evening and overnight. Waves 1 to 3 feet. .SUNDAY...West winds 10 to 15 knots. Waves 1 to 3 feet. .SUNDAY NIGHT...West winds 10 to 15 knots becoming 5 to 10 knots after midnight. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and overnight. .MONDAY...Northwest winds 5 to 10 knots becoming south 10 to 15 knots late in the morning...then increasing to 15 to 20 knots late in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the morning...then building to 2 to 4 feet late in the evening. .TUESDAY...South winds 20 to 25 knots with gusts to 35 knot gales becoming southwest 15 to 20 knots with gusts to around 30 knots until early evening...then veering to the west in the late evening and early morning. Showers likely. Waves 3 to 5 feet. .WEDNESDAY...North winds 15 to 20 knots. Gusts to 30 knots until afternoon. A chance of showers early in the morning. Waves 4 to 6 feet. $$ LHZ461-201600- MAFOR 2009/ HURON NORTH 12620 12630 11730 11720 12610. Waves 1 to 3 feet building to 3 to 5 feet...THEN building to 5 to 7 feet. Occasional wave height around 10 feet today. Waves 5 to 7 feet subsiding to 3 to 5 feet...THEN subsiding to 1 to 3 feet. Occasional wave height around 10 feet tonight. HURON SOUTH 11610 11620 13610 12700 11600. Waves 2 to 4 feet. $$ TF Experimental modernized open lake forecast is available online at weather.gov/dtx/glftable (all lower case) Graphical marine forecasts are available online at weather.gov/greatlakes (all lower case)