484
FZUS63 KMKX 260150
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
850 PM CDT Sat May 25 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...

High pressure of 29.9 inches over Lower Michigan will move east
into New England tomorrow, while low pressure of 29.4 inches lifts
from Kansas into western Illinois by afternoon, and then to
southern Lake Michigan by late Sunday night. This will result in
increasing southeast to east winds across the lake late tonight
and Sunday, with showers and thunderstorms likely at times on
Sunday.

That low will then progress northeastward to Lake Huron by Monday
afternoon, with winds quickly turning northwesterly as the low
departs. West to northwest flow will persist into mid week, with
winds gradually weakening over time as high pressure eventually
builds into the region.

LMZ261-362-364-366-563-565-567-868-260930-
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-
850 PM CDT Sat May 25 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...South winds 10 to 20 kt. Waves 1 to 3 ft.
.SUNDAY...Southeast winds 10 to 20 kt becoming east early in the
afternoon, then increasing to 30 kt late. Chance of showers in
the afternoon. Waves 2 to 4 ft.
.SUNDAY NIGHT...East winds to 30 kt diminishing to 15 to 25 kt
late in the evening, then becoming east 15 to 25 kt after
midnight becoming northeast 10 to 20 kt late. Showers. Waves 3 to
5 ft.
.MONDAY...North winds 15 to 25 kt becoming northwest to 30 kt.
Chance of showers. Waves 3 to 5 ft.
.MONDAY NIGHT...Northwest winds 15 to 25 kt. Chance of showers.
Waves 3 to 5 ft.
.TUESDAY...Northwest winds 15 to 25 kt. Chance of showers. Waves
2 to 4 ft.
.TUESDAY NIGHT...Northwest winds 15 to 25 kt diminishing to 10 to
20 kt. Waves 2 to 4 ft.
.WEDNESDAY...North winds 10 to 20 kt. Waves 1 to 3 ft.
.THURSDAY...Northeast winds 5 to 10 kt backing to southwest 10 to
15 kt. Waves 1 ft or less.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-260930-
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-
850 PM CDT Sat May 25 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...South winds 10 to 15 kt becoming southeast
10 to 20 kt. Waves 1 to 2 ft.
.SUNDAY...Southeast winds 10 to 20 kt increasing to 15 to 25 kt.
Showers likely with a chance of thunderstorms in the afternoon.
Waves 1 to 3 ft building to 3 to 5 ft.
.SUNDAY NIGHT...Southeast winds 10 to 20 kt veering to west.
Showers likely with a chance of thunderstorms in the evening,
then chance of showers and thunderstorms overnight. Waves 3 to
5 ft.
.MONDAY...West winds 15 to 25 kt. Chance of showers. Waves 4 to
6 ft occasionally to 8 ft.
.MONDAY NIGHT...West winds 10 to 20 kt. Chance of showers in the
evening. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.TUESDAY...West winds 10 to 20 kt becoming northwest. Waves 3 to
5 ft.
.TUESDAY NIGHT...Northwest winds 10 to 20 kt. Waves 2 to 4 ft.
.WEDNESDAY...Northwest winds 10 to 20 kt becoming north. Waves
3 to 5 ft.
.THURSDAY...Northeast winds 5 to 10 kt becoming north 10 to
15 kt. Waves 1 to 2 ft.

$$

LMZ761-260930-
MAFOR 2604/
MICHIGAN NORTH 12420 11310 11320 11220 11230 12246. Waves 1 to 3
feet overnight. Waves 1 to 3 feet building to 2 to 4 feet Sunday.
Waves 2 to 4 feet Sunday evening.

MICHIGAN SOUTH 12310 13320 12336 11326. A chance of thunderstorms
Sunday afternoon and Sunday evening. Waves 1 foot or less
overnight. Waves 1 to 3 feet building to 2 to 4 feet Sunday.
Waves 2 to 4 feet Sunday evening.

$$


Boxell

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

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