Great Lakes Forecast
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455
FZUS63 KLOT 230125
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
825 PM CDT Fri Jun 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...Low pressure of 29.6 inches over east central Indiana
will move to near Detroit by Saturday afternoon, and then slowly
east on Sunday. Meanwhile, a ridge of high pressure averaging 29.9
inches will remain stretched from the northern Great Lakes to New
England through early Saturday. A cold front will move south
across the region Saturday night with high pressure of 30.2 inches
moving across the Great Lakes on Monday.

LMZ261-362-364-366-563-565-567-868-230930-
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-
825 PM CDT Fri Jun 22 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Northeast winds 10 to 20 kt. Waves 2 to 4 ft
subsiding to 1 to 3 ft.
.SATURDAY...Northeast winds 10 to 20 kt. Waves 1 to 3 ft.
.SATURDAY NIGHT...Northeast winds 10 to 15 kt becoming north.
Waves 1 to 2 ft.
.SUNDAY...Northeast winds 10 to 15 kt becoming north. Waves 1 to
2 ft.
.SUNDAY NIGHT...North winds 10 to 15 kt becoming northeast. Waves
1 to 3 ft.
.MONDAY...East winds 5 to 10 kt. Waves 1 to 2 ft.
.TUESDAY...Southeast winds 15 to 25 kt. Chance of showers and
thunderstorms. Waves 4 to 6 ft occasionally to 8 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-230930-
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-
825 PM CDT Fri Jun 22 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...North winds 15 to 25 kt diminishing to 10 to
20 kt. Patchy fog. Scattered showers this evening, then slight
chance of showers overnight. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 2 to 4 ft.
.SATURDAY...North winds 10 to 20 kt becoming northwest by early
afternoon. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.SATURDAY NIGHT...Northwest winds 10 to 15 kt. Waves 1 to 3 ft.
.SUNDAY...North winds 10 to 15 kt. Waves 1 to 3 ft.
.SUNDAY NIGHT...Northeast winds 10 to 15 kt. Waves 1 to 3 ft.
.MONDAY...East winds 10 to 15 kt. Waves 1 to 3 ft.
.TUESDAY...Southeast winds 15 to 25 kt becoming south. Chance of
showers and thunderstorms. Waves 4 to 6 ft occasionally to 8 ft.

$$
LMZ761-230930-
MAFOR 2303/
MICHIGAN NORTH 14110 11110 12120 11110. Waves 2 to 4 ft subsiding
to 1 to 3 ft overnight and continuing Saturday and Saturday
evening.

MICHIGAN SOUTH 11830 19130 11820 19120 12820 14810. Chance of
showers overnight. Waves 4 to 6 ft occasionally to 8 ft subsiding
to 3 to 5 ft overnight. Waves 2 to 4 ft Saturday subsiding to 1 to
3 ft by Saturday evening.

$$

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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