Great Lakes Forecast
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613
FZUS63 KMKX 181932
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
232 PM CDT Sat May 18 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...

Southwest winds will continue this afternoon and early evening ahead
of a cold front. Winds become northerly early Sunday behind the front,
before becoming light and variable as high pressure of 30.0
inches moves through Sunday afternoon. Breezy southerly winds
return Monday and Tuesday ahead of the next approaching low
pressure system.

LMZ261-362-364-366-563-565-567-868-190315-
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-
232 PM CDT Sat May 18 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...South winds 10 to 20 kt veering to west 10 to 15 kt.
Chance of showers and slight chance of thunderstorms this
evening, then slight chance of showers and thunderstorms
overnight. Waves 2 to 4 ft.
.SUNDAY...Northwest winds 10 to 15 kt becoming west. Waves 1 to
3 ft.
.SUNDAY NIGHT...Southeast winds 5 to 10 kt. Waves 1 to 2 ft.
.MONDAY...Southeast winds 10 to 20 kt becoming south. Chance of
showers in the morning, then showers likely with a chance of
thunderstorms in the afternoon. Waves 1 to 3 ft building to 2 to
4 ft.
.MONDAY NIGHT...South winds 10 to 15 kt. Showers likely with a
chance of thunderstorms. Waves 2 to 4 ft.
.TUESDAY...East winds 10 to 15 kt increasing to 10 to 20 kt.
Chance of showers in the morning, then chance of showers and
thunderstorms in the afternoon. Waves 2 to 4 ft.
.TUESDAY NIGHT...Southeast winds 15 to 25 kt becoming south to
30 kt. Showers with a chance of thunderstorms. Waves 3 to 5 ft
building to 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY...Southwest winds to 30 kt. Chance of showers. Waves
4 to 7 ft occasionally to 9 ft.
.THURSDAY...West winds 10 to 20 kt becoming southwest 15 to
25 kt. Waves 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-190315-
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-
232 PM CDT Sat May 18 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...South winds 10 to 20 kt veering to west 10 to 15 kt.
Slight chance of showers and thunderstorms overnight. Waves 1 to
3 ft.
.SUNDAY...Northwest winds 10 to 15 kt becoming north 10 to 20 kt.
Waves 1 to 3 ft.
.SUNDAY NIGHT...North winds 10 to 15 kt veering to southeast.
Waves 1 to 3 ft subsiding to 1 ft or less.
.MONDAY...South winds 10 to 20 kt. Chance of showers. Waves 1 to
3 ft building to 2 to 4 ft.
.MONDAY NIGHT...South winds 10 to 20 kt diminishing to 10 to
15 kt. Chance of showers and thunderstorms in the evening, then
showers likely with a chance of thunderstorms overnight. Waves
2 to 4 ft.
.TUESDAY...South winds 10 to 15 kt becoming southeast 10 to
20 kt. Chance of showers and thunderstorms. Waves 2 to 4 ft.
.TUESDAY NIGHT...South winds 15 to 25 kt increasing to 30 kt.
Showers likely with a chance of thunderstorms. Waves 3 to 5 ft
building to 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY...Southwest winds to 30 kt diminishing to 15 to 25 kt.
Chance of showers. Waves 4 to 7 ft occasionally to 9 ft.
.THURSDAY...West winds 10 to 20 kt becoming southwest. Waves 2 to
4 ft.

$$

LMZ761-190315-
MAFOR 1822/
MICHIGAN NORTH 11420 11430 11520 11610 13710 11610. A chance of
showers this evening. Waves 1 to 3 feet tonight. Waves 2 feet or
less Sunday.

MICHIGAN SOUTH 11320 12420 11510 11710 12810 11820. Waves 1 to 3
feet tonight. Waves 2 feet or less Sunday.

$$


Boxell

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

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