Great Lakes Forecast
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685
FZUS63 KMKX 111458
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
858 AM CST Mon Feb 11 2019

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...

Broad ridge of high pressure of 30.6 inches across Manitoba and
Ontario will continue eastward, while low pressure develops over
the southern Great Plains today. This will maintain modest
easterly flow over Lake Michigan. Low pressure of 29.6 inches will
then track from the southern Great Plains to far southern Lake
Michigan or northern Indiana by the middle of the day on Tuesday.
The low will then continue across Lake Huron into Ontario for
Tuesday night into Wednesday, while strengthening to 29.3 inches.
A few easterly gusts to gale force are possible Monday night into
Tuesday morning but west to northwest gales will become likely
Tuesday night through Wednesday morning across the entire lake. A
High pressure of 29.9 inches will then move across Lake Michigan
Wednesday night into Thursday morning with much lighter winds
expected.


LMZ261-362-364-366-563-565-567-868-112230-
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 Mon Feb 11 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY
MORNING...

.REST OF TODAY...East winds 10 to 20 kt increasing to 15 to
25 kt. Freezing spray. Waves 3 to 5 ft building to 4 to 6 ft
occasionally to 8 ft.
.TONIGHT...East winds to 30 kt. A few gale force gusts are
possible. Heavy freezing spray possible. Chance of snow in the
evening, then chance of snow and slight chance of light freezing
rain overnight. Waves 6 to 9 ft occasionally to 12 ft.
.TUESDAY...East winds to 30 kt becoming northeast. Heavy freezing
spray possible. Snow. Waves 6 to 9 ft occasionally to 12 ft.
.TUESDAY NIGHT...North gales to 35 kt becoming northwest gales to
40 kt. Freezing spray. Snow in the evening, then chance of snow
overnight. Waves 7 to 10 ft occasionally to 13 ft.
.WEDNESDAY...Northwest gales to 35 kt becoming west to 30 kt.
Chance of snow in the morning. Heavy freezing spray in the
morning, then freezing spray in the afternoon. Waves 7 to 10 ft
occasionally to 13 ft subsiding to 5 to 8 ft occasionally to
10 ft.
.WEDNESDAY NIGHT...West winds 15 to 25 kt diminishing to 10 to
20 kt. Freezing spray. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 2 to 4 ft.
.THURSDAY...Northwest winds 10 to 15 kt becoming northeast.
Chance of snow. Waves 1 to 2 ft.
.FRIDAY...Northeast gales to 35 kt becoming north. Freezing
spray. Chance of snow. Waves 7 to 10 ft occasionally to 13 ft
building to 8 to 11 ft occasionally to 14 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-112230-
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 Mon Feb 11 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WATCH IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY
MORNING...

.REST OF TODAY...East winds 10 to 20 kt increasing to 15 to
25 kt. Waves 4 to 6 ft occasionally to 8 ft building to 4 to 7 ft
occasionally to 9 ft.
.TONIGHT...East winds to 30 kt. A few gale force gusts are
possible. Chance of snow and freezing rain in the evening, then
snow, rain and freezing rain overnight. Waves 6 to 9 ft
occasionally to 12 ft building to 8 to 11 ft occasionally to 14
ft.
.TUESDAY...East winds to 30 kt, then backing to north 15 to 25 kt
early in the afternoon becoming northwest to 30 kt late. A few
gale force gusts are possible. Snow and light freezing rain in
the morning, then snow with light freezing rain likely in the
afternoon. Waves 7 to 10 ft occasionally to 13 ft subsiding to 4
to 6 ft occasionally to 8 ft.
.TUESDAY NIGHT...Northwest gales to 40 kt. Freezing spray. Chance
of snow. Waves 8 to 11 ft occasionally to 14 ft building to 10 to
14 ft occasionally to 18 ft.
.WEDNESDAY...West gales to 40 kt diminishing to 30 kt in the
afternoon. Chance of snow in the morning. Freezing spray. Waves
10 to 14 ft occasionally to 18 ft subsiding to 8 to 11 ft
occasionally to 14 ft.
.WEDNESDAY NIGHT...West winds 15 to 25 kt becoming southwest
10 to 15 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to
2 to 4 ft.
.THURSDAY...Southeast winds 10 to 15 kt becoming east 10 to
20 kt. Chance of snow and rain. Waves 1 to 2 ft.
.FRIDAY...Northeast gales to 35 kt becoming north gales to 40 kt.
Freezing spray. Snow likely. Waves 7 to 10 ft occasionally to
13 ft building to 8 to 12 ft occasionally to 16 ft.

$$

LMZ761-112230-
MAFOR 1116/
MICHIGAN NORTH 12230 12232 12242 12257. Chance of snow this
evening. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8
ft this afternoon. Waves 4 to 7 ft occasionally to 9 ft building
to 6 to 9 ft occasionally to 12 ft tonight. Waves 6 to 9 ft
occasionally to 12 ft Tuesday morning. Wave heights are for ice
free areas.

MICHIGAN SOUTH 11220 11230 12240 14257. Waves 3 to 5 ft building
to 4 to 7 ft occasionally to 9 ft this afternoon. Waves 6 to 9 ft
occasionally to 12 ft building to 8 to 11 ft occasionally to 14
ft tonight. Waves 8 to 11 ft occasionally to 14 ft subsiding to 6
to 9 ft occasionally to 12 ft Tuesday morning.

$$


Gehring

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

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



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