008
FZUS63 KMKX 281509
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
909 AM CST Fri Feb 28 2025

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...

No major changes to the going forecast with this issuance.

Low pressure of 29.1 inches will move west to east across Lake
Superior this morning. Southerly winds over Lake Michigan will
rapidly accelerate towards daybreak, with southerly gales
expected after sunrise this morning. The low pressure will pass
over the northern end of the lake midday, causing a lull in wind
speeds, before a cold front sinks south over the lake, causing a
secondary period of west to northwest gales this afternoon. North
to northwest gales will continue through late tonight before
easing off in strength. Winds will remain elevated, however, into
the post-dawn hours of Saturday. Moderate freezing spray is likely
late tonight into Saturday morning, and may become heavy at times
over the northern third of the lake.

LMZ261-362-364-366-563-565-567-868-282230-
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-
909 AM CST Fri Feb 28 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...South gales to 40 kt veering to west. Chance of
snow showers and slight chance of rain showers. Waves 8 to 11 ft
occasionally to 14 ft building to 8 to 12 ft occasionally to
16 ft, then subsiding to 7 to 10 ft occasionally to 13 ft.
.TONIGHT...Northwest gales to 45 kt becoming north gales to
35 kt. Freezing spray. Chance of snow showers in the evening,
then slight chance of snow showers overnight. Waves 10 to 14 ft
occasionally to 18 ft.
.SATURDAY...North winds to 30 kt becoming northwest 10 to 20 kt.
Freezing spray in the morning. Chance of snow showers in the
morning. Waves 10 to 14 ft occasionally to 18 ft subsiding to
4 to 6 ft occasionally to 8 ft.
.SATURDAY NIGHT...Northwest winds 10 to 20 kt. Waves 3 to 5 ft
subsiding to 1 to 3 ft.
.SUNDAY...West winds 10 to 15 kt becoming southwest 10 to 20 kt.
Waves 1 to 2 ft.
.SUNDAY NIGHT...Southwest winds 10 to 20 kt. Waves 1 to 3 ft
building to 2 to 4 ft.
.MONDAY...South winds 15 to 25 kt. Chance of rain. Waves 4 to
6 ft occasionally to 8 ft.
.TUESDAY...South winds 10 to 20 kt becoming southeast. Chance of
rain. Waves 3 to 5 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-282230-
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-
909 AM CST Fri Feb 28 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...Southwest gales to 40 kt becoming west. Waves
5 to 8 ft occasionally to 10 ft building to 8 to 11 ft
occasionally to 14 ft, then subsiding to 7 to 10 ft occasionally
to 13 ft.
.TONIGHT...Northwest gales to 40 kt becoming north gales to
35 kt. Slight chance of rain and snow showers in the evening,
then slight chance of snow showers overnight. Freezing spray
overnight. Waves 8 to 12 ft occasionally to 16 ft building to
10 to 14 ft occasionally to 18 ft.
.SATURDAY...North winds to 30 kt diminishing to 10 to 20 kt.
Freezing spray in the morning. Waves 10 to 14 ft occasionally to
18 ft subsiding to 6 to 9 ft occasionally to 12 ft.
.SATURDAY NIGHT...Northwest winds 10 to 20 kt diminishing to 5 to
10 kt overnight. Waves 4 to 7 ft occasionally to 9 ft subsiding
to 2 to 4 ft.
.SUNDAY...West winds 10 to 15 kt becoming southwest. Waves 1 to
3 ft.
.SUNDAY NIGHT...South winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 3 ft building to 2 to 4 ft.
.MONDAY...South winds 10 to 20 kt. Chance of snow and rain. Waves
4 to 6 ft occasionally to 8 ft.
.TUESDAY...South winds 10 to 20 kt becoming southeast. Chance of
rain. Waves 3 to 5 ft.

$$

LMZ761-282230-
MAFOR 2817/
MICHIGAN NORTH...GALE WARNING IN EFFECT...11550 11650 12760 12850
12840. A chance of snow showers this afternoon, this evening, and
Saturday morning. Waves 6 to 10 feet this afternoon. Waves 10 to
14 feet tonight. Waves 9 to 12 feet subsiding to 7 to 10 feet
Saturday morning.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...11550 11650 13750 11851
12840. Waves 7 to 11 feet subsiding to 6 to 9 feet this
afternoon. Waves 8 to 11 feet building to 10 to 14 feet tonight.
Waves 9 to 13 feet Saturday morning.

$$


CMiller

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

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