Great Lakes Forecast
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FZUS63 KMKX 302035
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
235 PM CST Mon Jan 30 2023

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...

High pressure around 30.6 inches moving into southern Minnesota
and Iowa will continue to slide southeast of Wisconsin and Lake
Michigan through Wednesday. Brisk northwest winds this afternoon
will back west and southwest late tonight into Wednesday. Another
arctic front will then arrive on Thursday with brisk northwest
winds returning. Light to moderate freezing spray can be expected
this week.

LMZ261-362-364-366-563-565-567-868-311030-
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-
235 PM CST Mon Jan 30 2023

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...West winds 15 to 25 kt becoming northwest to
30 kt, then becoming west 15 to 25 kt late. Heavy freezing spray.
Slight chance of snow showers. Waves 4 to 7 ft occasionally to
9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.TUESDAY...West winds 15 to 25 kt becoming southwest to 30 kt.
Heavy freezing spray in the afternoon. Slight chance of snow
showers in the afternoon. Waves 2 to 4 ft building to 5 to 8 ft
occasionally to 10 ft.
.TUESDAY NIGHT...Southwest winds to 30 kt, becoming west to 30
kt. Freezing spray. Waves 6 to 9 ft occasionally to 12 ft.
.WEDNESDAY...West winds 15 to 25 kt becoming southwest. Waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft.
.WEDNESDAY NIGHT...West winds 15 to 25 kt increasing to 30 kt.
Waves 4 to 7 ft occasionally to 9 ft.
.THURSDAY...West gales to 35 kt becoming northwest gales to
40 kt. Chance of snow showers. Freezing spray in the afternoon.
Waves 6 to 9 ft occasionally to 12 ft.
.THURSDAY NIGHT...Northwest gales to 40 kt diminishing to 30 kt.
Freezing spray. Waves 7 to 10 ft occasionally to 13 ft subsiding
to 4 to 7 ft occasionally to 9 ft.
.FRIDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt.
Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.SATURDAY...South gales to 35 kt. Waves 7 to 10 ft occasionally
to 13 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-311030-
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-
235 PM CST Mon Jan 30 2023

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Northwest winds 15 to 25 kt diminishing to
10 to 20 kt. Heavy freezing spray. Slight chance of snow showers.
Waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft.
.TUESDAY...West winds 10 to 15 kt increasing to 10 to 20 kt.
Slight chance of snow showers in the morning. Waves 2 to 4 ft.
.TUESDAY NIGHT...West winds 15 to 25 kt. Freezing spray
overnight. Waves 3 to 5 ft building to 4 to 7 ft occasionally to
9 ft.
.WEDNESDAY...Southwest winds to 30 kt. Waves 4 to 7 ft
occasionally to 9 ft building to 6 to 9 ft occasionally to 12 ft.
.WEDNESDAY NIGHT...Southwest winds to 30 kt becoming west. Waves
6 to 9 ft occasionally to 12 ft.
.THURSDAY...West winds to 30 kt becoming northwest. Waves 6 to
9 ft occasionally to 12 ft.
.THURSDAY NIGHT...Northwest winds to 30 kt becoming north.
Freezing spray. Waves 7 to 10 ft occasionally to 13 ft.
.FRIDAY...Northwest winds to 30 kt diminishing to 10 to 20 kt.
Freezing spray. Waves 4 to 7 ft occasionally to 9 ft subsiding to
3 to 5 ft.
.SATURDAY...South winds to 30 kt increasing to gales to 35 kt.
Waves 6 to 9 ft occasionally to 12 ft.

$$

LMZ761-311030-
MAFOR 3105/

MICHIGAN NORTH 11740 13630 11540 11542 11540 11640. Waves 4 to 6
ft occasionally to 8 ft subsiding to 3 to 5 ft overnight. Waves 3
to 5 ft building to 5 to 8 ft occasionally to 10 ft Tuesday. Waves
6 to 9 ft occasionally to 12 ft Tuesday evening.

MICHIGAN SOUTH 12720 11710 11610 12620 12630. Waves 4 to 7 ft
occasionally to 9 ft overnight. Waves 3 to 5 ft Tuesday. Waves 4
to 7 ft occasionally to 9 ft Tuesday evening.

$$


Anderson

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

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


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