Great Lakes Forecast
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FZUS63 KLOT 242020
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
220 PM CST Fri Nov 24 2017

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 29.1 inches over Ontario will move to
northern Quebec by late tonight. A cold front trailing the low
will move across Lake Michigan late this evening. High pressure
of 30.2 inches will then build across the western Great Lakes
over the weekend. Low pressure of 29.8 inches will pass just north
of the northern Great Lakes Sunday. High pressure of 30.2 inches
will then build across the Great Lakes through early next week.


LMZ261-362-364-366-563-565-567-868-250445-
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-
220 PM CST Fri Nov 24 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WARNING IN EFFECT UNTIL 9 PM CST THIS EVENING...

.TONIGHT...Southwest gales to 35 kt becoming west to 30 kt late
this evening, and then northwest after midnight. Rain showers
likely this evening. Waves 8 to 12 ft occasionally to 16 ft
subsiding to 6 to 9 ft occasionally to 12 ft.
.SATURDAY...Northwest winds to 30 kt. Slight chance of rain and
snow showers in the morning...then slight chance of snow showers
in the afternoon. Waves 4 to 7 ft occasionally to 9 ft.
.SATURDAY NIGHT...Northwest winds 15 to 25 kt becoming west 10 to
20 kt after midnight. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 2 to 4 ft.
.SUNDAY...Southwest winds to 30 kt becoming west in the afternoon.
Waves building to 5 to 8 ft occasionally to 10 ft.
.SUNDAY NIGHT...Northwest winds 15 to 25 kt becoming north 10 to
20 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft.
.MONDAY...East winds 10 to 15 kt becoming south to 30 kt in the
afternoon. Waves building to 4 to 6 ft occasionally to 8 ft.
.MONDAY NIGHT...South gales to 35 kt becoming southwest. Waves
building to 7 to 10 ft occasionally to 13 ft.
.TUESDAY...Southwest winds to 30 kt becoming west. Waves
subsiding to 5 to 8 ft occasionally to 10 ft.
.WEDNESDAY...North winds 10 to 20 kt veering to southeast 10 to
15 kt. Waves subsiding to 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-250445-
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-
220 PM CST Fri Nov 24 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WARNING IN EFFECT UNTIL 9 PM CST THIS EVENING...

.TONIGHT...Southwest gales to 40 kt becoming west to 30 kt late
this evening, and then northwest after midnight. Chance of rain
showers this evening. Waves 8 to 11 ft occasionally to 14 ft
subsiding to 6 to 9 ft occasionally to 12 ft.
.SATURDAY...Northwest winds to 30 kt. Slight chance of rain
showers. Waves 5 to 8 ft occasionally to 10 ft.
.SATURDAY NIGHT...Northwest winds to 30 kt diminishing to 10 to
15 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft.
.SUNDAY...West winds 15 to 25 kt becoming southwest to 30 kt.
Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.SUNDAY NIGHT...West winds 15 to 25 kt becoming northwest 10 to
20 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft.
.MONDAY...Southeast winds 10 to 20 kt becoming south 15 to 25 kt.
Waves building to 3 to 5 ft.
.MONDAY NIGHT...South winds to 30 kt becoming southwest. Waves
6 to 9 ft occasionally to 12 ft.
.TUESDAY...Southwest winds to 30 kt becoming west 15 to 25 kt.
Waves 6 to 9 ft occasionally to 12 ft.
.WEDNESDAY...Northeast winds 10 to 15 kt becoming southeast.
Waves subsiding to 2 to 4 ft.

$$

LMZ761-250445-
MAFOR 2422/
MICHIGAN NORTH...Gale Warning in effect...11550 11556 11646
14740 11740. Chance of rain showers this evening. Waves 8 to 12 ft
occasionally to 16 ft subsiding to 6 to 9 ft occasionally to 12
ft tonight, further subsiding to 4 to 7 ft occasionally to 9 ft
Saturday morning.

MICHIGAN SOUTH...Gale Warning in effect...12550 11640 14740 11740.
Chance of rain showers this evening. Waves 8 to 11 ft
occasionally to 14 ft subsiding to 6 to 9 ft occasionally to 12
ft tonight, further subsiding to 5 to 8 ft occasionally to 10 ft
Saturday morning.

$$

MTF

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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