Great Lakes Forecast
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FZUS63 KLOT 161341
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
841 AM CDT Mon Jul 16 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...Low pressure of 29.6 inches near James Bay will move
to Quebec today as a cold front extending from this low moves
southward across the lake. High pressure of 30.1 inches over the
Northern Plains will build across the Upper Midwest by Tuesday.
The high will shift east across the Great Lakes Wednesday,
reaching the New England coast Thursday. A 29.8 inch low will
develop over the northern Great Plains Wednesday and move through
the western Great Lakes Friday.

LMZ261-362-364-563-162130-
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 Rock Island Passage to Sturgeon Bay WI-
841 AM CDT Mon Jul 16 2018

STURGEON BAY WI TO POINT BETSIE MI NORTH...

.REST OF TODAY...Northwest winds 5 to 15 kt becoming southwest.
Patchy fog this morning. Waves 2 ft or less.
.TONIGHT...Northwest winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 1 to 2 ft building to 2 to 4 ft.
.TUESDAY...North winds 10 to 20 kt. Waves 3 to 5 ft subsiding to
2 to 4 ft.
.TUESDAY NIGHT...North winds 10 to 20 kt diminishing to 5 to
10 kt overnight. Waves 2 to 4 ft.
.WEDNESDAY...North winds less than 10 kt backing to southwest.
Waves 1 ft or less.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 kt becoming south.
Waves 1 ft or less.
.THURSDAY...South winds 10 to 15 kt. Waves 1 to 2 ft.
.FRIDAY...Southeast winds 15 to 25 kt. Chance of showers and
thunderstorms. Waves 4 to 7 ft occasionally to 9 ft.

$$

LMZ366-565-567-669-868-870-162130-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
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 Pentwater to Manistee MI 5 NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
841 AM CDT Mon Jul 16 2018

STURGEON BAY WI TO POINT BETSIE MI SOUTH TO PORT WASHINGTON WI TO
WHITEHALL MI...

.REST OF TODAY...West winds 10 to 15 kt. Waves 1 to 2 ft.
.TONIGHT...West winds 10 to 20 kt becoming north. Waves building
to 2 to 4 ft.
.TUESDAY...North winds 10 to 20 kt becoming northeast. Waves 3 to
5 ft.
.TUESDAY NIGHT...Northeast winds 10 to 20 kt diminishing to 5 to
10 kt overnight. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.WEDNESDAY...Northeast winds 5 to 10 kt. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 kt becoming south.
Waves 1 ft or less.
.THURSDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 1 to 2 ft building to 2 to 4 ft.
.FRIDAY...South winds 15 to 25 kt. Chance of showers and
thunderstorms. Waves 4 to 7 ft occasionally to 9 ft.

$$

LMZ080-671-673-675-777-779-872-874-876-878-162130-
Lake Michigan from Michigan City IN to St. Joseph MI 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 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-
841 AM CDT Mon Jul 16 2018

PORT WASHINGTON WI TO WHITEHALL MI SOUTH...

.REST OF TODAY...West winds 5 to 10 kt veering north 10 to 15 kt
by late afternoon. Slight chance of showers and thunderstorms,
mainly near the Illinois and Indiana shores. Waves 1 ft or less
building 1 to 2 ft.
.TONIGHT...Northwest winds 10 to 15 kt becoming north 15 to
25 kt. Waves building to 4 to 6 ft occasionally to 8 ft.
.TUESDAY...North winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 3 to 5 ft.
.TUESDAY NIGHT...Northeast winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 3 to 5 ft.
.WEDNESDAY...Northeast winds 5 to 10 kt. Waves 1 to 3 ft
subsiding to 1 to 2 ft.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 kt becoming southeast.
Waves 1 ft or less.
.THURSDAY...Southeast winds 10 to 20 kt becoming south 15 to
25 kt. Waves 1 to 2 ft building to 2 to 4 ft.
.FRIDAY...South winds 15 to 25 kt becoming southwest 10 to 20 kt.
Chance of showers and thunderstorms. Waves 4 to 7 ft occasionally
to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.

$$
LMZ761-162130-
MAFOR 1615/
MICHIGAN NORTH 11710 12610 11720 11820 11830 11720 11820. Waves 1
ft or less this afternoon. Waves 2 to 4 ft tonight. Waves 3 to 5
ft Tuesday morning.

MICHIGAN SOUTH 11610 11810 12710 11720 11730 11830 11820. Waves 2
ft or less this afternoon. Waves 1 to 3 ft building to 4 to 6 ft
occasionally to 8 ft tonight. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft Tuesday morning.

$$

Kluber

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

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



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