Great Lakes Forecast
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000
FZUS63 KMKX 102038
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
238 PM CST Mon Dec 10 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...

A broad area of high pressure of 30.4 inches over Oklahoma will
shift into southern Louisiana by Tuesday afternoon. Meanwhile,
low pressure of 29.9 inches will move from Lake Superior tonight
to Lake Erie by tomorrow evening. As this passes, persistent,
moderate southwest winds this afternoon will shift to west
tonight and to northwest on Tuesday.

Southeast winds will then develop on Wednesday, as a trough of
low pressure of 29.9 inches develops from the southern Rockies
into Iowa. A stronger low of 29.6 inches is then expected to
develop over northern Texas on Thursday, lifting into the eastern
US by the end of the week. Depending on the track of this low,
north to northeast winds could affect the southern portions of
Lake Michigan late in the week.

LMZ261-362-364-366-563-565-567-868-110430-
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-
238 PM CST Mon Dec 10 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Southwest winds to 30 kt becoming west 15 to 25 kt.
Waves 4 to 6 ft occasionally to 8 ft.
.TUESDAY...Northwest winds 10 to 20 kt becoming north. Waves 3 to
5 ft subsiding to 1 to 3 ft.
.TUESDAY NIGHT...Northeast winds 10 to 15 kt veering to southeast
10 to 20 kt. Waves 1 to 3 ft building to 2 to 4 ft.
.WEDNESDAY...Southeast winds to 30 kt diminishing to 15 to 25 kt.
Chance of snow in the morning, then chance of rain and snow in
the afternoon. Waves 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY NIGHT...Southeast winds 10 to 20 kt becoming south.
Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.THURSDAY...South winds 10 to 20 kt. Waves 2 to 4 ft.
.THURSDAY NIGHT...South winds 10 to 20 kt. Chance of rain and
snow. Waves 2 to 4 ft.
.FRIDAY...East winds 10 to 20 kt becoming northeast. Chance of
rain and snow. Waves 1 to 3 ft.
.SATURDAY...North winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 4 to 6 ft occasionally to 8 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-110430-
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-
238 PM CST Mon Dec 10 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Southwest winds to 30 kt becoming west. Waves 4 to
7 ft occasionally to 9 ft.
.TUESDAY...West winds 15 to 25 kt becoming northwest 10 to 20 kt
early in the afternoon, then diminishing to 10 to 15 kt late.
Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.TUESDAY NIGHT...Northeast winds 5 to 10 kt veering to southeast
late in the evening, then increasing to 10 to 20 kt after
midnight becoming southeast 10 to 20 kt late. Waves 1 to 3 ft
building to 2 to 4 ft.
.WEDNESDAY...Southeast winds to 30 kt becoming south. Rain likely
with a chance of snow. Waves 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY NIGHT...Southwest winds 10 to 20 kt diminishing to
10 to 15 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to
2 to 4 ft.
.THURSDAY...South winds 10 to 20 kt. Waves 1 to 3 ft.
.THURSDAY NIGHT...South winds 10 to 20 kt becoming southeast.
Rain likely. Waves 1 to 3 ft.
.FRIDAY...East winds 10 to 15 kt becoming northeast 10 to 20 kt.
Chance of rain. Waves 1 to 3 ft.
.SATURDAY...North winds to 30 kt diminishing to 15 to 25 kt.
Chance of rain. Waves 5 to 8 ft occasionally to 10 ft.

$$

LMZ761-110430-
MAFOR 1022/
MICHIGAN NORTH 11540 11640 12630 11620 13720. Waves 4 to 6 ft
occasionally to 8 ft tonight. Waves 3 to 5 ft subsiding to 2 to 4
ft Tuesday.

MICHIGAN SOUTH 12540 13640 11630 11620 11720. Waves 3 to 5 ft
building to 4 to 7 ft occasionally to 9 ft tonight. Waves 4 to 7
ft occasionally to 9 ft subsiding to 2 to 4 ft Tuesday.

$$

Boxell

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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