Great Lakes Forecast
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000
FZUS63 KMKX 220233
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
833 PM CST Mon Jan 21 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...

Low pressure of 29.6 inches will push into Kansas by Tuesday
morning, northern Missouri by late Tuesday afternoon, then
southern Lake Michigan by Wednesday morning. Its central pressure
may weaken a bit with time. Gusty south winds and high waves are
expected to develop tonight into Tuesday ahead of the low.
Southerly gale force winds are expected Tuesday. Heavy freezing
spray is expected tonight into Tuesday as well.

The low pressure of 29.7 inches will move northeast of the region
Wednesday. Winds will become northwester and gusty during this
time. Gusty winds and heavy freezing spray will become a risk once
again later in the week and into the weekend, as very cold air
returns to the region.

LMZ261-362-364-366-563-565-567-868-221030-
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-
833 PM CST Mon Jan 21 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH TUESDAY
MORNING...
...GALE WARNING IN EFFECT FROM 6 AM CST TUESDAY THROUGH TUESDAY
AFTERNOON...

.REST OF TONIGHT...South winds to 30 kt increasing to gales to
35 kt toward morning. Freezing spray. Chance of snow overnight.
Waves 4 to 6 ft occasionally to 8 ft building to 8 to 12 ft
occasionally to 16 ft.
.TUESDAY...South gales to 35 kt diminishing to 30 kt. Freezing
spray. Slight chance of light freezing rain and snow in the
morning, then snow with a chance of light freezing rain in the
afternoon. Waves 10 to 14 ft occasionally to 18 ft subsiding to
8 to 11 ft occasionally to 14 ft.
.TUESDAY NIGHT...South winds to 30 kt becoming southwest 10 to
20 kt late in the evening, then becoming northwest after midnight
becoming north late. Snow with a chance of light freezing rain.
Waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 6 ft
occasionally to 8 ft.
.WEDNESDAY...North winds 15 to 25 kt becoming northwest. Snow
likely in the morning. Waves 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 kt becoming west.
Freezing spray. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.THURSDAY...West winds 15 to 25 kt becoming northwest to 30 kt.
Freezing spray. Chance of snow. Waves 3 to 5 ft building to 5 to
8 ft occasionally to 10 ft.
.THURSDAY NIGHT...Northwest winds to 30 kt. Heavy freezing spray.
Snow. Waves 5 to 8 ft occasionally to 10 ft.
.FRIDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt.
Heavy freezing spray. Snow. Waves 4 to 7 ft occasionally to 9 ft.
.SATURDAY...West winds to 30 kt. Heavy freezing spray. Chance of
snow. Waves 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-221030-
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-
833 PM CST Mon Jan 21 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH TUESDAY
MORNING...
...GALE WARNING IN EFFECT FROM 6 AM CST TUESDAY THROUGH TUESDAY
AFTERNOON...

.REST OF TONIGHT...Southeast winds to 30 kt increasing to gales
to 35 kt toward morning. Heavy freezing spray. Slight chance of
snow overnight. Waves 4 to 6 ft occasionally to 8 ft building to 8
to 11 ft occasionally to 14 ft.
.TUESDAY...South gales to 35 kt diminishing to 30 kt. Freezing
spray in the morning. Slight chance of light freezing rain and
snow in the morning, then snow, light freezing rain and rain in
the afternoon. Waves 10 to 14 ft occasionally to 18 ft subsiding
to 8 to 11 ft occasionally to 14 ft.
.TUESDAY NIGHT...South winds to 30 kt veering to northwest 15 to
25 kt. Rain, snow with a chance of freezing rain in the evening,
then snow with rain with possible freezing rain overnight. Waves
7 to 10 ft occasionally to 13 ft subsiding to 4 to 6 ft
occasionally to 8 ft.
.WEDNESDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt.
Chance of light freezing rain, snow and rain in the morning.
Waves 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY NIGHT...Northwest winds 15 to 25 kt becoming west
10 to 20 kt. Freezing spray. Waves 4 to 6 ft occasionally to
8 ft.
.THURSDAY...West winds 15 to 25 kt becoming northwest to 30 kt.
Freezing spray. Chance of snow in the afternoon. Waves 3 to 5 ft
building to 5 to 8 ft occasionally to 10 ft.
.THURSDAY NIGHT...Northwest gales to 35 kt diminishing to 30 kt.
Heavy freezing spray. Chance of snow. Waves 6 to 9 ft
occasionally to 12 ft.
.FRIDAY...West winds to 30 kt. Heavy freezing spray. Chance of
snow. Waves 4 to 7 ft occasionally to 9 ft building to 5 to 8 ft
occasionally to 10 ft.
.SATURDAY...West winds 15 to 25 kt. Freezing spray. Chance of
snow. Waves 3 to 5 ft.

$$

LMZ761-221030-
MAFOR 2204/
MICHIGAN NORTH...GALE WARNING IN EFFECT...13442 13457 11457
11537. Chance of snow overnight. Chance of snow Tuesday morning,
then chance of light freezing rain Tuesday afternoon. Chance of
light freezing rain Tuesday evening. Waves 6 to 9 ft occasionally
to 12 ft building to 8 to 12 ft occasionally to 16 ft overnight.
Waves 10 to 14 ft occasionally to 18 ft Tuesday. Waves 7 to 10 ft
occasionally to 13 ft Tuesday evening.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...13342 12450 11457
12447. Chance of freezing rain Tuesday evening. Waves 6 to 9 ft
occasionally to 12 ft building to 8 to 12 ft occasionally to 16 ft
overnight. Waves 10 to 14 ft occasionally to 18 ft Tuesday. Waves
7 to 10 ft occasionally to 13 ft Tuesday evening.

$$


Davis

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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