549
FZUS63 KMKX 040748
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
248 AM CDT Sat May 4 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...

Areas of patchy fog are possible from predawn through the morning
hours today over the open waters, though confidence regarding the
precise placement of any development remains low. Will monitor
trends over the next several hours and make forecast adjustments
as necessary. A weak, 29.9 inch low pressure center will approach
from the west today, dragging a cold front across the open waters
in the process. Scattered showers and thunderstorms will be
possible along the front. Most activity is expected to remain
sub-severe, though an isolated strong storm with small hail and
gusty winds can`t be ruled out. A 30.1 inch high pressure will
approach from the northern Great Plains on Sunday, resulting in
light & variable surface winds. Winds will begin to shift out of
the east-southeast Monday afternoon & evening as a 29.1 inch low
pressure center develops over the northern Great Plains. Winds
will pivot between southeasterly and southwesterly through mid-
week, prior to turning out of the north and northwest on Thursday
& Friday as a 29.6 inch low pressure center moves east of the
open waters. Periods of showers and thunderstorms are forecast
from early to mid week, with conditions drying out by the end of
the week & beginning of next weekend.

LMZ261-362-364-366-563-565-567-868-041515-
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-
248 AM CDT Sat May 4 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...Southeast winds 10 to 20 kt. Waves 1 to 2 ft.
.TONIGHT...South winds 10 to 20 kt veering to northwest. Chance
of rain showers and slight chance of thunderstorms. Waves 1 to
3 ft.
.SUNDAY...Northwest winds 10 to 20 kt backing to south. Waves
1 to 3 ft.
.SUNDAY NIGHT...Southeast winds 10 to 15 kt becoming east. Waves
1 to 2 ft.
.MONDAY...East winds 5 to 10 kt becoming northeast in the
afternoon. Waves 1 to 2 ft.
.MONDAY NIGHT...East winds 10 to 15 kt becoming southeast 10 to
20 kt. Waves 1 to 3 ft building to 3 to 5 ft.
.TUESDAY...Southeast winds 15 to 25 kt. Rain showers with a
chance of thunderstorms. Waves 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY...Southwest winds 10 to 20 kt becoming south. Waves
1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-041515-
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-
248 AM CDT Sat May 4 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...East winds 10 to 20 kt becoming southeast. Waves 1 to
2 ft.
.TONIGHT...South winds 10 to 15 kt veering to west 10 to 20 kt
late in the evening, then becoming northwest after midnight
increasing to 15 to 25 kt late. Chance of rain showers and
thunderstorms in the evening, then slight chance of rain showers
and thunderstorms overnight. Waves 1 to 3 ft building to 2 to
4 ft.
.SUNDAY...Northwest winds 15 to 25 kt becoming north 10 to 20 kt.
Waves 3 to 5 ft.
.SUNDAY NIGHT...Northeast winds 10 to 20 kt diminishing to 5 to
10 kt overnight. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.MONDAY...East winds 10 to 15 kt increasing to 10 to 20 kt. Waves
2 to 4 ft.
.MONDAY NIGHT...East winds 10 to 15 kt becoming southeast 10 to
20 kt. Waves 2 to 4 ft building to 3 to 5 ft.
.TUESDAY...Southeast winds 15 to 25 kt becoming south. Showers
with a chance of thunderstorms. Waves 4 to 6 ft occasionally to
8 ft.
.WEDNESDAY...Southwest winds 10 to 20 kt becoming south. Waves
1 to 3 ft.

$$

LMZ761-041515-
MAFOR 0410/
MICHIGAN NORTH 12310 12320 11420 11526 11620 11720. Waves 2 feet
or less.

MICHIGAN SOUTH 11220 11320 11310 12320 11510 11720 11730. A
chance of showers and thunderstorms this evening. Waves 2 feet or
less today. Waves 1 to 3 feet tonight.

$$


Quigley

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

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