Great Lakes Forecast
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274
FZUS63 KMKX 192049
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
249 PM CST Sat Jan 19 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 29.4 inches will move from the Tennessee Valley
Region toward the east coast tonight. This will continue to cause
gusty north to northeast winds across Lake Michigan that will
linger through Sunday. Isolated gales are expected tonight across
the southern part of the lake along with an increasing threat for
freezing spray. Heavy freezing spray is expected across the
northern half of Lake Michigan today into Sunday morning.

High pressure of 30.6 inches will move across Ontario later
Sunday into Sunday night, bringing lighter winds. However weak low
pressure lingering over the lake will result in variable winds and
scattered snow showers Sunday into Monday. South winds will
increase on Monday into Tuesday, ahead the next low of 29.6 inches
approaching the region.

LMZ261-362-364-366-563-565-567-868-200430-
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-
249 PM CST Sat Jan 19 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SUNDAY
MORNING...

.TONIGHT...Northeast winds 15 to 25 kt becoming north. Freezing
spray this evening, then heavy freezing spray overnight. Isolated
snow showers this evening, then scattered snow showers overnight.
Waves 5 to 8 ft occasionally to 10 ft.
.SUNDAY...North winds 15 to 25 kt diminishing to 10 to 20 kt.
Heavy freezing spray. Isolated snow showers. Waves 4 to 7 ft
occasionally to 9 ft.
.SUNDAY NIGHT...North winds 15 to 25 kt becoming northeast 10 to
20 kt, then diminishing to 10 to 15 kt late. Heavy freezing
spray. Chance of snow showers. Waves 4 to 7 ft occasionally to
9 ft subsiding to 3 to 5 ft.
.MONDAY...Southeast winds 10 to 20 kt becoming south 15 to 25 kt.
Freezing spray. Waves 1 to 3 ft building to 3 to 5 ft.
.MONDAY NIGHT...South winds to 30 kt. Freezing spray. Chance of
snow overnight. Waves 5 to 8 ft occasionally to 10 ft building to
7 to 10 ft occasionally to 13 ft.
.TUESDAY...South winds to 30 kt. Freezing spray. Chance of snow
in the morning, then snow in the afternoon. Waves 7 to 10 ft
occasionally to 13 ft.
.TUESDAY NIGHT...Southwest winds 15 to 25 kt veering to north to
30 kt. Snow. Waves 5 to 8 ft occasionally to 10 ft.
.WEDNESDAY...Northwest winds to 30 kt diminishing to 10 to 20 kt.
Freezing spray. Chance of snow. Waves 4 to 6 ft occasionally to
8 ft subsiding to 3 to 5 ft.
.THURSDAY...West winds 10 to 20 kt becoming northwest 15 to
25 kt. Freezing spray. Waves 2 to 4 ft building to 3 to 5 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-200430-
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-
249 PM CST Sat Jan 19 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WARNING IN EFFECT FROM 6 PM CST THIS EVENING THROUGH LATE
TONIGHT...

.TONIGHT...Northeast winds to 30 kt becoming north. Freezing
spray this evening, then heavy freezing spray overnight.
Scattered snow showers. Waves 7 to 10 ft occasionally to 13 ft.
.SUNDAY...North winds 10 to 20 kt. Heavy freezing spray.
Scattered snow showers. Waves 5 to 8 ft occasionally to 10 ft
subsiding to 4 to 7 ft occasionally to 9 ft.
.SUNDAY NIGHT...North winds 15 to 25 kt becoming northeast 10 to
20 kt, then becoming east 10 to 15 kt late. Heavy freezing spray
in the evening, then freezing spray overnight. Chance of snow
showers. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.MONDAY...Southeast winds 10 to 20 kt increasing to 15 to 25 kt.
Freezing spray. Chance of snow showers. Waves 2 to 4 ft building
to 3 to 5 ft.
.MONDAY NIGHT...Southeast winds to 30 kt becoming south. Freezing
spray. Waves 7 to 10 ft occasionally to 13 ft.
.TUESDAY...South winds to 30 kt increasing to gales to 35 kt.
Freezing spray in the morning. Snow and rain in the afternoon.
Waves 7 to 10 ft occasionally to 13 ft.
.TUESDAY NIGHT...Southwest gales to 35 kt becoming west to 30 kt.
Snow and rain. Waves 6 to 9 ft occasionally to 12 ft subsiding to
5 to 8 ft occasionally to 10 ft.
.WEDNESDAY...Northwest winds to 30 kt diminishing to 10 to 20 kt.
Chance of snow. Waves 4 to 7 ft occasionally to 9 ft subsiding to
3 to 5 ft.
.THURSDAY...West winds 10 to 20 kt increasing to 15 to 25 kt.
Freezing spray. Waves 3 to 5 ft.

$$

LMZ761-200430-
MAFOR 1922/
MICHIGAN NORTH 12130 13832 11132 11122 11822. Scattered snow
showers overnight and Sunday. Waves 4 to 7 ft occasionally to 9
ft building to 5 to 8 ft occasionally to 10 ft tonight. Waves 5
to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally
to 9 ft Sunday.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...12140 11142 11842 11832
13822. Scattered snow showers. Waves 7 to 10 ft occasionally to
13 ft tonight. Waves 6 to 9 ft occasionally to 12 ft subsiding to
4 to 7 ft occasionally to 9 ft Sunday.

$$
MBK

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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