National Weather Service Marine Forecast FZUS63 KMKX
FZUS63 KMKX 150900
GLFLM
OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
300 AM CST Sat Feb 15 2025
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
Winds will become east to northeast today into tonight as low pressure of 29.7 travels from the southern Plains into the Ohio River Valley, while deepening to 29.2 inches. North to northwest winds may approach gale force Sunday into Sunday evening as the low lifts into the northeast United States and deepens even more. Freezing Spray, possibly heavy for a time, is also expected Sunday evening through at least Monday night as a much colder airmass moves in.
LMZ261-362-364-366-563-565-567-868-151615
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
300 AM CST Sat Feb 15 2025
SHEBOYGAN WI TO PENTWATER MI NORTH...
GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING
TODAY
Southeast winds 10 to 15 kt becoming northeast 10 to
20 kt. Snow this morning, then snow likely this afternoon. Waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
TONIGHT
Northeast winds 10 to 20 kt increasing to 30 kt.
Chance of snow. Waves 4 to 6 ft occasionally to 8 ft building to
6 to 9 ft occasionally to 12 ft.
SUNDAY
North winds to 30 kt increasing to gales to 35 kt. Snow
likely. Freezing spray in the afternoon. Waves 8 to 12 ft
occasionally to 16 ft.
SUNDAY NIGHT
Northwest gales to 35 kt diminishing to 30 kt.
Freezing spray. Waves 8 to 11 ft occasionally to 14 ft subsiding
to 6 to 9 ft occasionally to 12 ft.
MONDAY
Northwest winds to 30 kt diminishing to 15 to 25 kt.
Heavy freezing spray. Waves 5 to 8 ft occasionally to 10 ft.
MONDAY NIGHT
Northwest winds to 30 kt. Waves 4 to 7 ft
occasionally to 9 ft.
TUESDAY
Northwest winds 15 to 25 kt. Waves 4 to 6 ft
occasionally to 8 ft.
WEDNESDAY
Northwest winds 10 to 20 kt. Waves 2 to 4 ft.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-151615
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
300 AM CST Sat Feb 15 2025
SHEBOYGAN WI TO PENTWATER MI SOUTH...
GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING
TODAY
Southeast winds 10 to 15 kt backing to northeast 10 to
20 kt. Chance of snow this morning, then snow likely this
afternoon. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft.
TONIGHT
Northeast winds 10 to 20 kt becoming north to 30 kt.
Chance of snow in the evening, then snow likely overnight. Waves
4 to 6 ft occasionally to 8 ft building to 6 to 9 ft occasionally
to 12 ft.
SUNDAY
North winds to 30 kt increasing to gales to 35 kt late
in the morning, then becoming northwest early in the afternoon
increasing to gales to 40 kt late. Snow in the morning, then
chance of snow in the afternoon. Waves 8 to 11 ft occasionally to
14 ft building to 10 to 14 ft occasionally to 18 ft.
SUNDAY NIGHT
Northwest gales to 35 kt diminishing to 30 kt.
Chance of snow in the evening. Freezing spray. Waves 10 to 14 ft
occasionally to 18 ft subsiding to 8 to 12 ft occasionally to
16 ft.
MONDAY
Northwest winds 15 to 25 kt becoming west. Heavy
freezing spray in the morning, then freezing spray in the
afternoon. Waves 7 to 10 ft occasionally to 13 ft subsiding to
6 to 9 ft occasionally to 12 ft.
MONDAY NIGHT
Northwest winds 15 to 25 kt. Freezing spray.
Waves 5 to 8 ft occasionally to 10 ft.
TUESDAY
Northwest winds 10 to 20 kt. Freezing spray. Waves
4 to 7 ft occasionally to 9 ft.
WEDNESDAY
Northwest winds 10 to 20 kt. Waves 3 to 5 ft.
LMZ761-151615
MAFOR 1511/
MICHIGAN NORTH 12317 11217 12127 11120 11130 11140. Waves 3 to 6
feet subsiding to 1 to 3 feet today. Waves 3 to 6 feet building
to 5 to 8 feet tonight.
MICHIGAN SOUTH 12310 11217 11127 11120 11127 11137 11847. Waves 3 to 6 feet subsiding to 1 to 3 feet today. Waves 3 to 5 feet building to 5 to 8 feet tonight.
DDV
Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable
Graphical marine forecasts are available online at: weather.gov/greatlakes