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000
FZUS63 KMKX 181413
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
913 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 around 29.6 inches will deepen across
Ontario today into northwest Quebec for late tonight into Friday.
With a strengthening high pressure around 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.

LMZ080-669-671-673-675-777-779-870-872-874-876-878-182115-
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-
913 AM CDT Thu Apr 18 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...West winds 5 to 10 kt becoming northwest 10 to
15 kt. Slight chance of rain showers late this morning, then
chance of rain showers this afternoon. Waves 1 to 3 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 7 ft occasionally to
9 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.

$$

LMZ261-362-364-366-563-565-567-868-182115-
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-
913 AM CDT Thu Apr 18 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...West winds 10 to 15 kt becoming southwest.
Chance of rain showers this afternoon. Waves 1 to 3 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 3 to 5 ft building to 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.

$$

LMZ761-182115-
MAFOR 1816/
MICHIGAN NORTH 13510 11516 11510 12620 11630. Waves 2 feet or
less this afternoon. Waves 1 to 3 feet tonight. Waves 2 to 4 feet
Friday morning.

MICHIGAN SOUTH 12600 11716 11726 11716 11720 11730 11630. Waves 2
feet or less this afternoon. Waves 2 feet or less building to 2
to 4 feet tonight. Waves 3 to 5 feet Friday morning.

$$

Wagner

Experimental modernized open lake forecast is available online at
weather.gov/mkx/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes