Great Lakes Forecast
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000
FZUS63 KMKX 230133
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
833 PM CDT Sat Sep 22 2018

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 centered over the eastern Great Lakes will merge
with a stronger high pressure of 30.47 inches drifting across
Ontario and Quebec, Canada Sunday into Monday. Look for
diminishing winds later tonight through Sunday afternoon.
Eventually, high pressure across the northeast U.S. will combine
with low pressure lingering over the northern plains producing an
increasing east to southeast wind across all of Lake Michigan
Sunday night into Monday. Expect building waves, especially over
the northern and western portions of Lake Michigan.

LMZ261-362-364-366-563-565-567-868-230945-
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-
833 PM CDT Sat Sep 22 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Southwest winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY...Southwest winds 10 to 15 kt backing to east 10 to
20 kt. Waves 2 to 4 ft.
.SUNDAY NIGHT...East winds 15 to 25 kt becoming southeast 10 to
20 kt. Waves 4 to 6 ft occasionally to 8 ft.
.MONDAY...Southeast winds 10 to 20 kt. Waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft.
.MONDAY NIGHT...South winds 10 to 20 kt becoming southwest 15 to
25 kt. Chance of showers. Waves 2 to 4 ft.
.TUESDAY...Southwest winds 10 to 20 kt becoming west. Chance of
showers. Waves 2 to 4 ft.
.TUESDAY NIGHT...North winds 10 to 15 kt increasing to 10 to
20 kt. Chance of showers. Waves 1 to 3 ft building to 2 to 4 ft.
.WEDNESDAY...Northwest winds 10 to 20 kt becoming west. Waves
3 to 5 ft.
.THURSDAY...Southwest winds to 30 kt. Chance of showers. Waves
6 to 9 ft occasionally to 12 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-230945-
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-
833 PM CDT Sat Sep 22 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Southeast winds 10 to 15 kt becoming south.
Waves 1 to 2 ft.
.SUNDAY...South winds 10 to 15 kt becoming east 5 to 10 kt. Waves
1 to 2 ft.
.SUNDAY NIGHT...East winds 10 to 15 kt becoming southeast 15 to
25 kt, then diminishing to 10 to 20 kt late. Waves 1 to 2 ft
building to 3 to 5 ft.
.MONDAY...Southeast winds 10 to 20 kt. Chance of showers in the
afternoon. Waves 3 to 5 ft.
.MONDAY NIGHT...South winds 10 to 20 kt becoming southwest.
Chance of showers. Waves 2 to 4 ft.
.TUESDAY...Southwest winds 10 to 20 kt diminishing to 10 to
15 kt. Chance of showers in the afternoon. Waves 2 to 4 ft.
.TUESDAY NIGHT...Northwest winds 10 to 15 kt increasing to 15 to
25 kt. Chance of showers. Waves 1 to 3 ft building to 3 to 5 ft.
.WEDNESDAY...Northwest winds 15 to 25 kt diminishing to 10 to
20 kt. Waves 4 to 6 ft occasionally to 8 ft.
.THURSDAY...Southwest winds to 30 kt. Waves 4 to 7 ft
occasionally to 9 ft.

$$

LMZ761-230945-
MAFOR 2303/
MICHIGAN NORTH 14520 12310 11220 11230. Waves 3 to 5 ft subsiding
to 2 to 4 ft overnight. Waves 2 to 4 ft Sunday. Waves 3 to 5 ft
Sunday evening.

MICHIGAN SOUTH 15310 13210. Waves 1 to 3 ft.

$$


Davis

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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