####018005251#### FZUS63 KMKX 180804 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 304 AM CDT Thu Apr 18 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... Another low pressure area of 29.6 inches will deepen across Ontario today into northwest Quebec for late tonight into Friday. With a strengthening high pressure of 30.7 inches in western Canada impinging southeastward the pressure gradient will sharply increase for Friday across the region leading to breezy westerly winds across the lake during this time. However, winds are not expected to be as strong as over land due to the cooler waters of the lake. through the weekend the high pressure will weaken as it slides southeast meaning winds will trend lighter while remaining largely from the west to northwest. LMZ080-669-671-673-675-777-779-870-872-874-876-878-181545- 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- 304 AM CDT Thu Apr 18 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TODAY...West winds 10 to 15 kt becoming northwest. Chance of rain showers. Waves 2 to 4 ft subsiding to 1 to 2 ft. .TONIGHT...Northwest winds 10 to 20 kt. Rain showers in the evening, then chance of rain showers overnight. Waves 1 to 3 ft building to 2 to 4 ft. .FRIDAY...Northwest winds 15 to 25 kt becoming west to 30 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .FRIDAY NIGHT...West winds 10 to 20 kt increasing to 30 kt overnight. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. .SATURDAY...West winds to 30 kt becoming northwest 15 to 25 kt. Waves 5 to 8 ft occasionally to 10 ft. .SATURDAY NIGHT...West winds 10 to 15 kt. Waves 3 to 5 ft subsiding to 1 to 3 ft. .SUNDAY...West winds 10 to 20 kt becoming southwest. Waves 1 to 3 ft. .MONDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt. Waves 2 to 4 ft. $$ LMZ261-362-364-366-563-565-567-868-181545- Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM offshore to Mid Lake- Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and north of a line from Charlevoix MI to South Fox Island 5 NM offshore- Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to Mid Lake- Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to Mid Lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI- Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid Lake- 304 AM CDT Thu Apr 18 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .TODAY...West winds 10 to 20 kt becoming southwest 10 to 15 kt. Chance of rain showers this afternoon. Waves 2 to 4 ft subsiding to 1 to 2 ft. .TONIGHT...Southwest winds 10 to 15 kt becoming west 10 to 20 kt. Rain showers likely in the evening, then chance of rain showers overnight. Waves 1 to 3 ft. .FRIDAY...West winds 10 to 20 kt increasing to 30 kt. Waves 3 to 5 ft. .FRIDAY NIGHT...West winds 10 to 20 kt increasing to 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. .SATURDAY...West winds 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. .SATURDAY NIGHT...West winds 10 to 20 kt. Waves 3 to 5 ft subsiding to 1 to 3 ft. .SUNDAY...West winds 10 to 20 kt becoming southwest 15 to 25 kt. Waves 1 to 3 ft. .MONDAY...Southwest winds 10 to 20 kt becoming south. Waves 2 to 4 ft. $$ LMZ761-181545- MAFOR 1810/ MICHIGAN NORTH 11620 11610 13510 11516 11510 11620. Waves 2 to 4 feet subsiding to 1 to 3 feet today. Waves 2 feet or less tonight. MICHIGAN SOUTH 11610 13600 11716 11726 11710 11720. Waves 1 to 3 feet. $$ Kuroski Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes ####018000897#### FZUS61 KBUF 180804 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 404 AM EDT Thu Apr 18 2024 SLZ022-024-181515- Saint Lawrence River from Cape Vincent to Saint Regis 404 AM EDT Thu Apr 18 2024 .TODAY...Northeast winds 10 to 20 knots veering to south. Occasional showers...especially through early afternoon. .TONIGHT...South winds 5 to 10 knots. A chance of showers through the early overnight. .FRIDAY...South winds increasing to 15 to 20 knots. Showers. .FRIDAY NIGHT...Southwest winds 15 to 20 knots diminishing to 10 to 15 knots. Rain showers likely in the evening. .SATURDAY...Southwest winds 10 to 15 knots. A chance of rain showers. .SUNDAY...Southwest winds 15 to 20 knots. Partly cloudy. .MONDAY...West winds 5 to 10 knots. Partly cloudy. $$ HSK/RSH