993
FZUS63 KMKX 011930
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
230 PM 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 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.

LMZ261-362-364-366-563-565-567-868-020300-
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-
230 PM CDT Wed May 1 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...West winds 10 to 20 kt becoming northwest late this
evening, then becoming northwest 10 to 20 kt after midnight
becoming north 5 to 10 kt late. Waves 3 to 5 ft subsiding to 1 to
2 ft.
.THURSDAY...Northeast winds 5 to 10 kt increasing to 10 to 15 kt.
Chance of rain showers. Waves 1 to 2 ft.
.THURSDAY NIGHT...Northeast winds 10 to 20 kt veering to
southeast. Rain showers likely in the evening, then rain showers
overnight. Waves 2 to 4 ft.
.FRIDAY...South winds 10 to 20 kt veering to northwest. Chance of
rain showers. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.FRIDAY NIGHT...Northeast winds 5 to 10 kt. Waves 1 to 2 ft.
.SATURDAY...Northeast winds 10 to 15 kt. Waves 1 to 2 ft.
.SATURDAY NIGHT...North winds 10 to 15 kt becoming northwest.
Chance of rain showers. Waves 1 to 2 ft.
.SUNDAY...Northwest winds 10 to 15 kt. Waves 1 to 2 ft.
.MONDAY...Southeast winds 10 to 15 kt becoming east 10 to 20 kt.
Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-020300-
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-
230 PM CDT Wed May 1 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Northwest winds 10 to 15 kt veering to northeast.
Slight chance of rain showers overnight. 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 in the morning, then chance of rain
showers and slight chance of thunderstorms in the afternoon.
Waves 1 to 2 ft building to 2 to 4 ft.
.THURSDAY NIGHT...Southeast winds 10 to 20 kt becoming south
10 to 15 kt. Chance of showers and thunderstorms in the evening,
then showers with a chance of thunderstorms overnight. Waves 2 to
4 ft.
.FRIDAY...Southwest winds 10 to 15 kt veering to north. Chance of
showers and thunderstorms in the morning, then chance of showers
in the afternoon. Waves 1 to 3 ft.
.FRIDAY NIGHT...North winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 1 to 3 ft.
.SATURDAY...North winds 10 to 15 kt. Waves 1 to 3 ft.
.SATURDAY NIGHT...North winds 10 to 15 kt. Chance of showers.
Waves 1 to 3 ft.
.SUNDAY...North winds 10 to 15 kt. Waves 1 to 2 ft.
.MONDAY...East winds 10 to 15 kt becoming southeast 10 to 20 kt.
Chance of showers. Waves 1 to 3 ft.

$$

LMZ761-020300-
MAFOR 0122/
MICHIGAN NORTH 11630 12720 11810 12100 11210 11110. A chance of
showers Thursday. Waves 2 to 4 feet subsiding to 1 foot or less
tonight. Waves 2 feet or less Thursday.

MICHIGAN SOUTH 11620 11700 11800 11110 13210 11220. A chance of
showers Thursday. Waves 1 to 3 feet.

$$


Boxell

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

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