778
FZUS63 KMKX 011345
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
845 AM CDT Wed May 1 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...

Gusty southwest to west winds today will gradually diminish this
evening, as high pressure of 30.6 inches moves into and across the
lake. Winds will then turn easterly and increase on Thursday, as
low pressure of 29.7 inches lifts from Kansas into southwestern
Wisconsin. That low will weaken and lift north into Canada on
Friday, with high pressure briefly building into the region.

Another area of low pressure, averaging 29.8 inches, will lift
into the region on Saturday. A brief period of gusty north winds
is expected Sunday morning as the low moves east and high
pressure of 30.2 inches builds in from the west.

LMZ261-362-364-366-563-565-567-868-012115-
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-
845 AM CDT Wed May 1 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...South winds 15 to 25 kt becoming west to 30 kt.
Waves 3 to 5 ft.
.TONIGHT...West winds 15 to 25 kt becoming northwest 10 to 20 kt,
then diminishing to 10 to 15 kt late. Waves 3 to 5 ft subsiding
to 1 to 3 ft.
.THURSDAY...North winds 10 to 15 kt becoming northeast. Chance of
rain showers in the afternoon. Waves 1 to 2 ft.
.THURSDAY NIGHT...East winds 10 to 20 kt becoming southeast 15 to
25 kt. Rain showers likely. Waves 1 to 3 ft building to 3 to
5 ft.
.FRIDAY...South winds 10 to 20 kt becoming southwest. Showers
likely. Waves 3 to 5 ft subsiding to 1 to 3 ft.
.FRIDAY NIGHT...South winds 5 to 10 kt veering to 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.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-012115-
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-
845 AM CDT Wed May 1 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Southwest winds 15 to 25 kt becoming west to
30 kt. Waves 3 to 5 ft.
.TONIGHT...West winds 10 to 20 kt becoming northwest 5 to 10 kt
late in the evening, then becoming north after midnight becoming
northeast 10 to 15 kt late. Waves 2 to 4 ft subsiding to 1 to
2 ft.
.THURSDAY...Northeast winds 10 to 15 kt becoming east 10 to
20 kt. Waves 1 to 3 ft.
.THURSDAY NIGHT...Southeast winds 10 to 20 kt becoming south.
Chance of rain showers and thunderstorms in the evening, then
rain showers likely with a chance of thunderstorms overnight.
Waves 2 to 4 ft.
.FRIDAY...Southwest winds 10 to 15 kt veering to northwest.
Showers likely in the morning, then chance of showers in the
afternoon. Waves 2 to 4 ft.
.FRIDAY NIGHT...Northeast winds 5 to 10 kt becoming north. Waves
1 to 3 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.

$$

LMZ761-012115-
MAFOR 0116/
MICHIGAN NORTH 11540 11640 11630 11620 11720 11710 11810 11110.
Waves 3 to 5 feet this afternoon. Waves 2 to 4 feet subsiding to
1 to 3 feet tonight. Waves 1 foot or less Thursday morning.

MICHIGAN SOUTH 11540 11640 11620 11710 11800 11810 11110 11210. A
chance of showers Thursday morning. Waves 2 to 4 feet this
afternoon. Waves 1 to 3 feet subsiding to 1 foot or less tonight.
Waves 2 feet or less Thursday 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