000
FZUS63 KMKX 171353
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
853 AM CDT Wed Apr 17 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 29.4 inches over southeast Minnesota will track
through central Wisconsin today and across northern Lake Michigan
this evening while weakening to 29.6 inches. As low pressure
tracks northward this morning, southeasterly winds will continue
to gust near 30 kt. In the northern third of the lake, easterly
gales continue through early this evening. A cold front will track
eastward across the southern two thirds today, shifting winds to
southwesterly, then westerly. Winds will slowly diminish tonight
as the low departs. Low pressure of 29.8 inches then settles over
Ontario Thursday night, leading to gusty winds Friday near the
shorelines.


LMZ080-673-675-777-779-874-876-878-172115-
Lake Michigan from Michigan City IN to St. Joseph MI 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 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-
853 AM CDT Wed Apr 17 2024

NORTH POINT LIGHT WI TO GRAND HAVEN MI SOUTH...

.REST OF TODAY...South winds to 30 kt becoming southwest. Chance
of rain showers and thunderstorms through mid morning, then
slight chance of rain showers this afternoon. Waves 4 to 7 ft
occasionally to 9 ft.
.TONIGHT...West winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
.THURSDAY...West winds 10 to 15 kt veering to north. Rain showers
likely in the afternoon. Waves 2 to 4 ft subsiding to 1 to 2 ft.
.THURSDAY NIGHT...North winds 10 to 15 kt becoming northwest
15 to 25 kt overnight. Rain showers likely in the evening. Waves
1 to 2 ft building to 3 to 5 ft.
.FRIDAY...Northwest winds 15 to 25 kt becoming west. Waves 4 to
7 ft occasionally to 9 ft.
.FRIDAY NIGHT...West winds 15 to 25 kt increasing to 30 kt. Waves
4 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally
to 10 ft.
.SATURDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt.
Waves 6 to 9 ft occasionally to 12 ft.
.SUNDAY...West winds 10 to 15 kt backing to southwest. Waves 1 to
3 ft.

$$

LMZ364-366-563-565-567-669-671-868-870-872-172115-
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 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 Pentwater to Manistee MI 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-
853 AM CDT Wed Apr 17 2024

ROCK ISLAND PASSAGE TO CHARLEVOIX MI SOUTH TO NORTH POINT LIGHT
WI TO GRAND HAVEN MI...

.REST OF TODAY...Southeast gales to 35 kt becoming south to 30 kt
early this afternoon, then diminishing to 15 to 25 kt late. Rain
showers likely with a chance of thunderstorms through mid
morning, then chance of rain showers and slight chance of
thunderstorms this afternoon. Waves 6 to 9 ft occasionally to
12 ft subsiding to 4 to 7 ft occasionally to 9 ft.
.TONIGHT...Southwest winds to 30 kt becoming west late in the
evening, then diminishing to 15 to 25 kt after midnight
diminishing to 10 to 20 kt late. Chance of rain showers in the
evening. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft.
.THURSDAY...West winds 10 to 20 kt becoming southwest 10 to
15 kt. Chance of rain showers in the afternoon. Waves 2 to 4 ft
subsiding to 1 to 2 ft.
.THURSDAY NIGHT...Southwest winds 10 to 15 kt becoming west 15 to
25 kt overnight. Chance of rain showers. Waves 1 to 2 ft building
to 3 to 5 ft.
.FRIDAY...West winds 15 to 25 kt increasing to 30 kt. Waves 4 to
7 ft occasionally to 9 ft.
.FRIDAY NIGHT...West winds 15 to 25 kt increasing to 30 kt. Waves
4 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally
to 10 ft.
.SATURDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt.
Waves 6 to 9 ft occasionally to 12 ft.
.SUNDAY...West winds 10 to 20 kt becoming southwest. Waves 1 to
3 ft.

$$

LMZ261-362-172115-
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-
853 AM CDT Wed Apr 17 2024

ROCK ISLAND PASSAGE TO CHARLEVOIX MI NORTH...

...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.REST OF TODAY...East gales to 45 kt diminishing to gales to
40 kt. Chance of rain showers and slight chance of thunderstorms
through mid morning, then rain showers and slight chance of
thunderstorms this afternoon. Waves 7 to 10 ft occasionally to
13 ft.
.TONIGHT...Southeast winds to 30 kt becoming southwest 10 to
20 kt late in the evening, then becoming west after midnight
becoming west 10 to 20 kt late. Chance of rain showers in the
evening, then slight chance of rain showers overnight. Waves 4 to
7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
.THURSDAY...West winds 10 to 20 kt becoming southwest. Waves 1 to
3 ft.
.THURSDAY NIGHT...Southwest winds 10 to 15 kt becoming west 5 to
10 kt. Chance of rain showers. Waves 1 to 2 ft.
.FRIDAY...West winds 15 to 25 kt. Chance of rain showers in the
afternoon. Waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft.
.FRIDAY NIGHT...West winds 15 to 25 kt increasing to 30 kt. Waves
3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.SATURDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt.
Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft.
.SUNDAY...West winds 10 to 20 kt becoming southwest 15 to 25 kt.
Waves 2 to 4 ft.

$$

LMZ761-172115-
MAFOR 1716/
MICHIGAN NORTH...GALE WARNING IN EFFECT...11366 11356 11450 11540
11630 12620 11610. A chance of thunderstorms late this morning.
Waves 6 to 9 feet this afternoon. Waves 4 to 7 feet subsiding to
2 to 4 feet tonight. Waves 1 to 3 feet Thursday morning.

MICHIGAN SOUTH 11430 11530 11630 11640 11630 12620 11610. A
chance of showers late this morning. Waves 4 to 7 feet subsiding
to 3 to 6 feet this afternoon. Waves 3 to 6 feet tonight. Waves 1
to 3 feet Thursday morning.

$$


MH

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

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