Great Lakes Forecast
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906
FZUS63 KLOT 121458 CCA
GLFLM

OPEN LAKE FORECAST for Lake Michigan...CORRECTED
National Weather Service Chicago/Romeoville IL
858 AM CST Fri Jan 12 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 of 30.8 inches stretches from Alberta
into the Dakotas. The high will move to the Ohio Valley Saturday
night then to the eastern Great Lakes and Quebec on Sunday. A 30.2
inch low will form over Minnesota Sunday and will move across
Lake Michigan Monday. Another high of 31.1 inches will build into
the northern Great Plains Monday then shift to the mid Mississippi
Valley Wednesday weakening slightly to 30.7 inches.

LMZ261-362-364-366-563-565-567-868-122230-
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-
858 AM CST Fri Jan 12 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...North gales to 35 kt. Freezing spray. Scattered
snow showers. Waves 10 to 14 ft occasionally to 18 ft.
.TONIGHT...North gales to 35 kt diminishing to 30 kt late.
Freezing spray. Chance of flurries. Waves 8 to 11 ft occasionally
to 14 ft subsiding to 7 to 10 ft occasionally to 13 ft.
.SATURDAY...North winds to 30 kt becoming northwest 10 to 20 kt.
Freezing spray in the morning. Chance of flurries in the
afternoon. Waves 5 to 8 ft occasionally to 10 ft subsiding to
3 to 5 ft.
.SATURDAY NIGHT...Northwest winds 10 to 20 kt becoming west 10 to
15 kt. Chance of flurries overnight. Waves 2 to 4 ft subsiding to
1 to 2 ft.
.SUNDAY...Southwest winds 10 to 20 kt increasing to 30 kt in the
afternoon. Chance of flurries. Waves 1 to 3 ft building to 4 to
6 ft occasionally to 8 ft.
.SUNDAY NIGHT...South winds to 30 kt. Snow likely. Waves 5 to
8 ft occasionally to 10 ft.
.MONDAY...South winds 15 to 25 kt backing to east 10 to 20 kt.
Snow likely. Waves 4 to 7 ft occasionally to 9 ft subsiding to
3 to 5 ft.
.TUESDAY...Northeast winds to 30 kt becoming north. Chance of
snow. Waves 5 to 8 ft occasionally to 10 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-122230-
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-
858 AM CST Fri Jan 12 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.TODAY...North gales to 40 kt. Freezing spray. Light snow
showers. Waves 12 to 16 ft occasionally to 21 ft.
.TONIGHT...North gales to 35 kt diminishing to 30 kt late.
Freezing spray. Light snow showers. Waves 10 to 14 ft
occasionally to 18 ft subsiding to 8 to 12 ft occasionally to 16
ft.
.SATURDAY...North winds to 30 kt becoming northwest 10 to 20 kt.
Freezing spray. Snow likely in the morning...then chance of snow
in the afternoon. Waves 8 to 11 ft occasionally to 14 ft
subsiding to 4 to 7 ft occasionally to 9 ft.
.SATURDAY NIGHT...Northwest winds 10 to 20 kt becoming west 10 to
15 kt. Chance of snow in the evening...then chance of flurries
overnight. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.SUNDAY...Southwest winds 10 to 20 kt becoming south to 30 kt in
the afternoon. Chance of flurries. Waves 1 to 3 ft building to
3 to 5 ft.
.SUNDAY NIGHT...South winds to 30 kt. Freezing spray. Snow. Waves
5 to 8 ft occasionally to 10 ft.
.MONDAY...Southwest winds to 30 kt becoming northwest. Chance of
snow. Waves 4 to 7 ft occasionally to 9 ft.
.TUESDAY...Northwest winds to 30 kt becoming north. Chance of
snow. Waves 5 to 8 ft occasionally to 10 ft.

$$
LMZ761-122230-
MAFOR 1216/
MICHIGAN NORTH...Gale Warning in effect...15851 12841. Waves 10
to 14 ft occasionally to 18 ft subsiding to 7 to 10 ft
occasionally to 13 ft.

MICHIGAN SOUTH...Gale Warning in effect...15851 12841. Waves 12
to 16 ft occasionally to 21 ft today gradually subsiding tonight
to 8 to 12 ft occasionally to 16 ft.

$$

- Izzi

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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