179
FZUS63 KMKX 041427
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
927 AM CDT Thu Jul 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...

Weak high pressure around 29.9 inches over WI and IL this morning
will slide eastward today, as a couple weak low pressure areas
develop east across MN and from IL into IN during the afternoon
and early evening. Light and variable winds are expected over Lake
MI.

More organized south to southeast winds will develop over the
south half tonight into Friday morning, with east northeasterly
winds over the north half as low pressure around 29.7 inches moves
from MN across central WI. This low pressure area will gradually
track eastward across the middle of Lake Michigan early Friday
afternoon. Modest southwest winds will prevail over central and
southern Lake MI at this time with northeasterly winds to the
north. The winds will then trend to north northwest Friday night
into Saturday morning as the low moves away across Lake Huron and
southern Ontario. The winds will then back to southwest during the
afternoon and evening, and southerly for Sunday as high pressure
around 30.0 inches moves across Lake MI and tracks to the lower
Great Lakes.


LMZ261-362-364-366-563-565-567-868-042130-
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-
927 AM CDT Thu Jul 4 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...West winds 5 to 10 kt backing to southeast.
Waves 1 to 2 ft.
.TONIGHT...East winds 5 to 10 kt increasing to 10 to 15 kt.
Slight chance of showers in the evening, then chance of showers
and slight chance of thunderstorms overnight. Waves 1 to 2 ft.
.FRIDAY...East winds 10 to 20 kt. Showers likely with a chance of
thunderstorms. Waves 2 to 4 ft.
.FRIDAY NIGHT...North winds 10 to 20 kt. Chance of showers and
thunderstorms in the evening. Waves 2 to 4 ft.
.SATURDAY...Northwest winds 10 to 20 kt becoming west. Waves 2 to
4 ft.
.SATURDAY NIGHT...Southwest winds 10 to 20 kt diminishing to 5 to
10 kt. Waves 1 to 2 ft.
.SUNDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.
.MONDAY...South winds 10 to 20 kt. Chance of showers. Waves 1 to
2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-042130-
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-
927 AM CDT Thu Jul 4 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Southwest winds 5 to 10 kt becoming southeast.
Waves 1 to 2 ft.
.TONIGHT...East winds 5 to 10 kt becoming south. Slight chance of
showers and thunderstorms in the evening, then chance of showers
and thunderstorms overnight. Waves 1 to 2 ft.
.FRIDAY...South winds 10 to 15 kt becoming southwest 10 to 20 kt.
Chance of showers and thunderstorms in the morning, then chance
of showers in the afternoon. Waves 2 to 4 ft.
.FRIDAY NIGHT...West winds 10 to 20 kt becoming northwest. Waves
3 to 5 ft.
.SATURDAY...Northwest winds 10 to 20 kt becoming west. Waves 3 to
5 ft.
.SATURDAY NIGHT...Southwest winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 1 to 3 ft subsiding to 1 to 2 ft.
.SUNDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.
.MONDAY...South winds 10 to 15 kt. Chance of showers and
thunderstorms. Waves 1 to 2 ft.

$$

LMZ761-042130-
MAFOR 0416/
MICHIGAN NORTH 11600 11400 11200 12100 11110 12216. A chance of
thunderstorms Friday morning. Waves 2 feet or less this afternoon
and tonight. Waves 1 to 3 feet Friday morning.

MICHIGAN SOUTH 12400 11200 12300 11400 12410. A chance of showers
and thunderstorms overnight and Friday morning. Waves 2 feet or
less this afternoon and tonight. Waves 1 to 3 feet Friday
morning.

$$


Gehring

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

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