259
FZUS63 KMKX 301341
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
841 AM 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...

Southerly winds will be generally under 15 knots today, as high
pressure of 30.0 inches slides through the area. Southeast to
south winds will increase tonight, as low pressure of 29.5 inches
lifts northeast through northern Wisconsin. Breezy west to
southwest winds are expected on Wednesday behind the departing low
and as high pressure of 30.0 inches builds in from the west.
Another low of 29.6 inches will lift through Wisconsin Thursday
into Thursday night, bringing breezy east to southwest winds to
the lake.

LMZ261-362-364-366-563-565-567-868-302115-
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-
841 AM CDT Tue Apr 30 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...Southwest winds 10 to 15 kt becoming south 10 to
20 kt. Waves 1 to 3 ft.
.TONIGHT...South winds 10 to 15 kt becoming southeast late in the
evening, then increasing to 10 to 20 kt after midnight increasing
to 15 to 25 kt late. 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. Chance of rain showers in the morning. Waves 2 to 4 ft.
.WEDNESDAY NIGHT...West winds 10 to 20 kt becoming northwest
10 to 15 kt. Waves 2 to 4 ft subsiding to 1 to 2 ft.
.THURSDAY...Northeast winds 10 to 15 kt becoming east 10 to
20 kt. Chance of rain showers. Waves 1 to 2 ft building to 2 to
4 ft.
.THURSDAY NIGHT...East winds 15 to 25 kt becoming southeast to
30 kt. Showers likely with a chance of thunderstorms. Waves 2 to
4 ft.
.FRIDAY...South winds to 30 kt diminishing to 10 to 20 kt. Chance
of showers. Waves 2 to 4 ft.
.SATURDAY...Northeast winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-302115-
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-
841 AM CDT Tue Apr 30 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Southwest winds 10 to 15 kt backing to
southeast. Waves 1 to 2 ft.
.TONIGHT...Southeast winds 10 to 15 kt increasing to 10 to 20 kt
late in the evening, then becoming southeast 10 to 20 kt after
midnight becoming south 15 to 25 kt late. Chance of rain showers
overnight. Waves 1 to 3 ft building to 2 to 4 ft.
.WEDNESDAY...Southwest winds 15 to 25 kt diminishing to 10 to
20 kt. Waves 3 to 5 ft.
.WEDNESDAY NIGHT...West winds 10 to 15 kt veering to northeast.
Waves 2 to 4 ft subsiding to 1 to 2 ft.
.THURSDAY...East winds 10 to 20 kt becoming southeast. Chance of
showers. Waves 1 to 3 ft building to 3 to 5 ft.
.THURSDAY NIGHT...Southeast winds 10 to 20 kt becoming south
15 to 25 kt. Showers with a chance of thunderstorms. Waves 3 to
5 ft.
.FRIDAY...Southwest winds 10 to 20 kt. Chance of showers. Waves
2 to 4 ft.
.SATURDAY...Northeast winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 2 ft.

$$

LMZ761-302115-
MAFOR 3016/
MICHIGAN NORTH 12520 12410 11310 11336 11430 11530. Waves 2 feet
or less this afternoon. Waves 2 feet or less building to 2 to 4
feet tonight. Waves 2 to 4 feet Wednesday morning.

MICHIGAN SOUTH 11510 11410 12310 11320 12430 11530. A chance of
showers overnight. Waves 2 feet or less this afternoon. Waves 1
to 3 feet building to 2 to 4 feet tonight. Waves 2 to 4 feet
Wednesday morning.

$$


Boxell

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

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