Great Lakes Forecast
Issued by NWS

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342
FZUS63 KMKX 190801
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
301 AM CDT Sun May 19 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...

A cold front will move west to east across Lake Michigan early
this morning, with isolated showers and storms possible. Winds
become northerly behind the front, before becoming light and
variable as high pressure of 30.0 inches moves through this
afternoon. Southwest winds Monday morning will become
southeasterly ahead of an approach low pressure system of 29.6
inches. Breezy southerly winds will remain Tuesday into Wednesday
as another low pressure system advances toward the Great Lakes
Region.

LMZ261-362-364-366-563-565-567-868-191530-
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-
301 AM CDT Sun May 19 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...Northwest winds 10 to 20 kt backing to southwest 10 to
15 kt. Waves 1 to 3 ft.
.TONIGHT...South winds 10 to 15 kt becoming southeast. Waves 1 to
2 ft.
.MONDAY...Southeast winds 10 to 15 kt becoming south 10 to 20 kt.
Chance of showers in the morning, then showers likely with a
chance of thunderstorms in the afternoon. Waves 1 to 2 ft
building to 2 to 4 ft.
.MONDAY NIGHT...Southwest winds 10 to 15 kt. Showers likely with
a chance of thunderstorms in the evening, then showers likely
overnight. Waves 2 to 4 ft.
.TUESDAY...East winds 10 to 15 kt. Chance of showers. 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...South winds to 30 kt becoming southwest. Chance of
showers. Waves 5 to 8 ft occasionally to 10 ft.
.THURSDAY...West winds 15 to 25 kt becoming southwest. Waves 2 to
4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-191530-
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-
301 AM CDT Sun May 19 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...Northwest winds 10 to 20 kt becoming north. Waves 1 to
3 ft.
.TONIGHT...North winds 10 to 15 kt veering to southeast. Waves
1 to 3 ft subsiding to 1 ft or less.
.MONDAY...Southeast winds 10 to 15 kt becoming south 10 to 20 kt.
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 20 kt diminishing to 10 to
15 kt. Showers likely with a chance of thunderstorms in the
evening, then chance of showers and 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 in the morning, then
chance of showers in the afternoon. Waves 1 to 3 ft building to
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.
Waves 4 to 7 ft occasionally to 9 ft.
.THURSDAY...West winds 10 to 20 kt becoming southwest. Waves 2 to
4 ft.

$$

LMZ761-191530-
MAFOR 1910/
MICHIGAN NORTH 11720 11710 12610 11410 12300 11310. Waves 2 feet
or less.

MICHIGAN SOUTH 11720 13820 11810 11110 11200 11310. Waves 2 feet
or less.

$$


Patterson

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

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