Great Lakes Forecast
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000
FZUS63 KLOT 151446
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
846 AM CST Thu Feb 15 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 29.5 inches over southeast Ontario
will move into Quebec this afternoon. A trailing cold front from
this low will move across the lake this afternoon. Low pressure
of 29.7 inches over Missouri will quickly move to New England
tonight. Strong high pressure of 30.6 inches will move across the
Plains tonight and Friday and then across the southern Great Lakes
region Friday night. Low pressure is expected to move across
Hudson Bay Saturday with a weak cold front crossing the lake
Saturday night.

LMZ261-362-364-366-563-565-567-868-152230-
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-
846 AM CST Thu Feb 15 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...Southwest winds 15 to 25 kt becoming north late
this afternoon. Patchy fog through mid morning. Waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft.
.TONIGHT...North winds to 30 kt becoming northwest. Slight chance
of snow. Freezing spray overnight. Waves building to 5 to 8 ft
occasionally to 10 ft.
.FRIDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt
late in the morning...then becoming west in the afternoon.
Freezing spray in the morning. Waves 5 to 8 ft occasionally to
10 ft subsiding to 3 to 5 ft.
.FRIDAY NIGHT...Southwest winds 10 to 20 kt increasing to 30 kt
overnight. Waves building to 4 to 6 ft occasionally to 8 ft.
.SATURDAY...Southwest gales to 35 kt. Freezing spray in the
morning. Chance of snow in the afternoon. Waves 7 to 10 ft
occasionally to 13 ft.
.SATURDAY NIGHT...West winds to 30 kt diminishing to 15 to 25 kt.
Chance of snow. Waves 6 to 9 ft occasionally to 12 ft subsiding
to 4 to 6 ft occasionally to 8 ft.
.SUNDAY...West winds 10 to 20 kt becoming south 15 to 25 kt.
Chance of snow. Waves 3 to 5 ft.
.MONDAY...Southeast winds 10 to 20 kt becoming east. Rain with
snow likely. Waves 3 to 5 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-152230-
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-
846 AM CST Thu Feb 15 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...

.REST OF TODAY...Southwest winds 10 to 20 kt becoming northwest.
Areas of fog. Slight chance of rain through mid morning...then
chance of rain this afternoon. Waves 3 to 5 ft subsiding to 2 to
4 ft.
.TONIGHT...North winds to 30 kt. Slight chance of rain in the
evening...then slight chance of snow overnight. Waves building to
7 to 10 ft occasionally to 13 ft.
.FRIDAY...Northwest winds to 30 kt becoming west 10 to 20 kt in
the afternoon. Freezing spray in the morning. Waves 7 to 10 ft
occasionally to 13 ft subsiding to 4 to 7 ft occasionally to 9
ft.
.FRIDAY NIGHT...West winds 10 to 15 kt becoming southwest 15 to
25 kt overnight. Waves 3 to 5 ft.
.SATURDAY...South winds to 30 kt becoming southwest. Chance of
snow in the afternoon. Waves 5 to 8 ft occasionally to 10 ft.
.SATURDAY NIGHT...West winds to 30 kt diminishing to 15 to 25 kt.
Chance of snow. Waves 4 to 7 ft occasionally to 9 ft.
.SUNDAY...Southwest winds 10 to 20 kt becoming south 15 to 25 kt.
Waves 3 to 5 ft.
.MONDAY...South winds 15 to 25 kt increasing to 30 kt. Rain.
Waves 4 to 6 ft occasionally to 8 ft.

$$
LMZ761-152230-
MAFOR 1516/
MICHIGAN NORTH 11530 11730 11830 11840 14740. Waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft today. Waves 5 to 8
ft occasionally to 10 ft tonight and Friday morning.


MICHIGAN SOUTH 11523 11623 11723 14840 11740. Chance of rain
today. Waves 3 to 5 ft subsiding to 2 to 4 ft today. Waves 7 to
10 ft occasionally to 13 ft tonight and Friday morning.

$$


JEE

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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