815
FZUS63 KMKX 010203
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
903 PM CDT Tue Apr 30 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...

Southeast to south winds will continue to increase tonight as low
pressure of 29.5 inches lifts through northern Wisconsin. Low
pressure will depart on Wednesday and shift winds to west to
southwest as high pressure of 30.0 inches builds in from the
west. Another low of 29.6 inches will then lift through Wisconsin
Thursday into Thursday night, bringing breezy east to southwest
winds to the lake.

LMZ261-362-364-366-563-565-567-868-010930-
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-
903 PM CDT Tue Apr 30 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...South winds 10 to 15 kt becoming southeast
15 to 25 kt. Rain showers likely overnight. Waves 1 to 3 ft
building to 2 to 4 ft.
.WEDNESDAY...South winds 10 to 20 kt becoming southwest 15 to
25 kt late in the morning, then increasing to 30 kt early in the
afternoon becoming west 15 to 25 kt late. Chance of rain showers
in the morning. Waves 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY NIGHT...West winds 10 to 20 kt becoming north 10 to
15 kt. Waves 3 to 5 ft subsiding to 1 to 3 ft.
.THURSDAY...North winds 10 to 20 kt becoming east 10 to 15 kt.
Chance of rain showers. Waves 1 to 2 ft building to 1 to 3 ft.
.THURSDAY NIGHT...East winds 10 to 20 kt becoming southeast.
Showers in the evening, then showers with a chance of
thunderstorms overnight. Waves 1 to 3 ft building to 2 to 4 ft.
.FRIDAY...South winds 10 to 20 kt becoming southwest. Showers
likely in the morning, then chance of showers in the afternoon.
Waves 2 to 4 ft.
.FRIDAY NIGHT...Southwest winds 10 to 15 kt becoming northwest.
Waves 1 to 3 ft.
.SATURDAY...Northeast winds 10 to 15 kt. Waves 1 to 2 ft.
.SUNDAY...Northwest winds 10 to 15 kt backing to southwest 10 to
20 kt. Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-010930-
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-
903 PM CDT Tue Apr 30 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Southeast winds 10 to 15 kt increasing to
10 to 20 kt late this evening, then increasing to 15 to 25 kt
after midnight becoming south late. Chance of rain showers
overnight. Waves 1 to 3 ft building to 2 to 4 ft.
.WEDNESDAY...Southwest winds 15 to 25 kt becoming west. Waves
3 to 5 ft.
.WEDNESDAY NIGHT...Northwest winds 10 to 15 kt veering to
northeast 5 to 10 kt. Waves 2 to 4 ft subsiding to 1 to 2 ft.
.THURSDAY...East winds 10 to 15 kt increasing to 10 to 20 kt.
Chance of rain showers. Waves 1 to 3 ft building to 2 to 4 ft.
.THURSDAY NIGHT...Southeast winds 10 to 20 kt becoming south.
Showers likely in the evening, then showers likely with a chance
of thunderstorms overnight. Waves 2 to 4 ft.
.FRIDAY...Southwest winds 10 to 20 kt becoming west 10 to 15 kt.
Showers likely in the morning, then chance of showers in the
afternoon. Waves 2 to 4 ft.
.FRIDAY NIGHT...Northwest winds 10 to 15 kt becoming north. Waves
1 to 3 ft subsiding to 1 to 2 ft.
.SATURDAY...Northeast winds 10 to 15 kt becoming north. Waves
1 to 2 ft.
.SUNDAY...North winds 10 to 15 kt becoming northeast. Waves 1 to
3 ft.

$$

LMZ761-010930-
MAFOR 0104/
MICHIGAN NORTH 11320 11336 11430 12530 11640 11630 11720. Waves 2
feet or less building to 2 to 4 feet overnight. Waves 2 to 4 feet
building to 3 to 5 feet Wednesday. Waves 2 to 4 feet subsiding to
1 to 3 feet Wednesday evening.

MICHIGAN SOUTH 11330 11430 12530 12630 11620 11710. A chance of
showers overnight. Waves 1 to 3 feet building to 2 to 4 feet
overnight. Waves 2 to 4 feet Wednesday. Waves 1 to 3 feet
Wednesday evening.

$$


MH

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

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