839
FZUS63 KMKX 021937
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
Issued by National Weather Service Green Bay WI
237 PM CDT Thu May 2 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...

Low pressure of 29.7 inches over northern Iowa will will weaken
to 29.8 inches as it lifts northeast to the Wisconsin/Upper
Peninsula border by 1 am tonight and northern Lake Superior by 7
am Friday. As the low passes west of Lake Michigan, winds will be
veering from the east this afternoon to the south tonight, then to
the west on Friday morning. Areas of fog will be possible from
late evening into Friday morning prior to winds shifting to the
west.

Lighter winds are expected Friday under high pressure of 30.0
inches. A cold front 29.9 inches will pass across Lake Michigan on
Saturday afternoon and evening before high pressure 30.0 inches
moves from Minnesota on Saturday night to northern Lake Michigan
on Sunday night. Winds will then likely be 15 knots or less
through the upcoming weekend.

LMZ261-362-364-366-563-565-567-868-030315-
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-
237 PM CDT Thu May 2 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...East winds 15 to 25 kt veering to south 10 to 20 kt.
Chance of rain showers and slight chance of thunderstorms. Patchy
fog overnight. Waves 2 to 4 ft.
.FRIDAY...Southwest winds 10 to 20 kt becoming south 10 to 15 kt.
Slight chance of rain showers in the morning. Waves 1 to 3 ft.
.FRIDAY NIGHT...South winds 10 to 15 kt becoming southeast 5 to
10 kt. Waves 1 to 2 ft.
.SATURDAY...East winds 10 to 15 kt becoming northeast. Waves 1 to
2 ft.
.SATURDAY NIGHT...North winds 10 to 15 kt diminishing to 5 to
10 kt. Chance of rain showers. Waves 1 to 2 ft.
.SUNDAY...North winds 10 to 15 kt becoming northwest. Waves 1 to
2 ft.
.SUNDAY NIGHT...East winds 10 to 15 kt. Waves 1 to 2 ft.
.MONDAY...East winds 10 to 15 kt becoming northeast 10 to 20 kt.
Waves 1 to 3 ft.
.TUESDAY...Southeast winds 15 to 25 kt. Chance of showers. Waves
3 to 5 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-030315-
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-
237 PM CDT Thu May 2 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Southeast winds 10 to 20 kt becoming southwest 10 to
15 kt. Chance of rain showers and thunderstorms this evening,
then rain showers likely with slight chance of thunderstorms
overnight. Patchy fog overnight. Waves 2 to 4 ft.
.FRIDAY...West winds 10 to 15 kt veering to northeast. Patchy fog
in the morning. Chance of showers and slight chance of
thunderstorms in the morning. Waves 1 to 3 ft.
.FRIDAY NIGHT...Northeast winds 10 to 15 kt becoming east 5 to
10 kt. Waves 1 to 2 ft.
.SATURDAY...East winds 5 to 10 kt becoming northeast 10 to 15 kt.
Waves 1 to 3 ft.
.SATURDAY NIGHT...North winds 5 to 10 kt becoming northwest 10 to
15 kt. Chance of showers. Waves 1 to 3 ft.
.SUNDAY...North winds 10 to 20 kt. Waves 1 to 3 ft.
.SUNDAY NIGHT...Northeast winds 10 to 15 kt. Waves 1 to 3 ft.
.MONDAY...East winds 10 to 20 kt. Waves 1 to 3 ft.
.TUESDAY...Southeast winds 15 to 25 kt becoming south. Showers
likely. Waves 3 to 5 ft.

$$

LMZ761-030315-
MAFOR 0222/
MICHIGAN NORTH 11130 11230 11330 11420 11510 11610 11510 11410. A
chance of showers tonight and Friday morning. Waves 2 to 4 ft
building to 3 to 5 ft, then subsiding to 2 to 4 ft tonight. Waves
2 to 4 ft Friday.

MICHIGAN SOUTH 11320 11420 11410 11416 11610 11710 12810. A
chance of thunderstorms this evening. Waves 2 to 4 ft tonight.
Waves 1 to 3 ft Friday.

$$

MPC

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

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