Great Lakes Forecast
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000
FZUS63 KLOT 100903
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
303 AM CST Wed Jan 10 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 29.4 inches over the far northern
High Plains early this morning will track to James Bay by
this evening. Another low of 29.5 inches will move from the
central Plains on Wednesday night to Lake Superior by Thursday
morning and to western Quebec by Thursday night. An associated
cold front trailing from this low will move across the lake
Thursday afternoon and evening. High pressure of 30.8 inches will
build into the Upper Midwest Saturday while low pressure of 29.4
inches shifts through the Appalachian states. The high will move
into the Great Lakes region on Sunday. Another clipper like low
will quickly follow Sunday night into Monday.

LMZ261-362-364-366-563-565-567-868-101630-
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-
303 AM CST Wed Jan 10 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...South winds to 30 kt. Occasional gale force gusts to 35
kt through early afternoon. Areas of fog. Patchy drizzle. Waves 8
to 11 ft occasionally to 14 ft.
.TONIGHT...South winds to 30 kt. Areas of fog. Rain likely in the
evening...then rain showers likely overnight. Waves 6 to 9 ft
occasionally to 12 ft.
.THURSDAY...South winds to 30 kt becoming west. Areas of fog.
Rain showers. Waves 5 to 8 ft occasionally to 10 ft.
.THURSDAY NIGHT...Northwest gales to 35 kt becoming north.
Freezing spray. Snow likely in the evening...then chance of snow
overnight. Waves 8 to 11 ft occasionally to 14 ft.
.FRIDAY...North gales to 35 kt easing to 30 kt in the afternoon.
Freezing spray in the morning. Waves 8 to 11 ft occasionally to 14
ft subsiding to 5 to 8 ft occasionally to 10 ft.
.FRIDAY NIGHT...North winds to 30 kt. Freezing spray. Chance of
snow showers. Waves 6 to 9 ft occasionally to 12 ft building to
8 to 11 ft occasionally to 14 ft.
.SATURDAY...North winds to 30 kt. Freezing spray. Chance of snow
showers. Waves 8 to 11 ft occasionally to 14 ft.
.SUNDAY...Northwest winds 10 to 20 kt becoming west 10 to 15 kt.
Waves 2 to 4 ft.

Wave forecast is for ice free areas

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-101630-
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-
303 AM CST Wed Jan 10 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...South winds to 30 kt. Areas of fog. Patchy drizzle.
Waves 6 to 9 ft occasionally to 12 ft.
.TONIGHT...South winds to 30 kt. Areas of fog in the evening...
then areas of dense fog overnight. Areas of drizzle with a chance
of rain showers. Waves 6 to 9 ft occasionally to 12 ft.
.THURSDAY...South winds to 30 kt becoming southwest. Areas of
dense fog in the morning...then areas of fog in the afternoon.
Rain showers likely. Waves 5 to 8 ft occasionally to 10 ft.
.THURSDAY NIGHT...Northwest winds increasing to gales to 35 kt and
becoming north. Rain likely, chance of snow and light sleet in the
evening...then chance of snow overnight. Freezing spray
overnight. Waves 6 to 9 ft occasionally to 12 ft building to 8 to
12 ft occasionally to 16 ft.
.FRIDAY...North gales to 35 kt. Freezing spray in the morning.
Chance of snow in the afternoon. Waves 8 to 12 ft occasionally to
16 ft subsiding to 7 to 10 ft occasionally to 13 ft.
.FRIDAY NIGHT...Northeast gales to 35 kt. Freezing spray. Chance
of snow showers. Waves 7 to 10 ft occasionally to 13 ft building
to 8 to 12 ft occasionally to 16 ft.
.SATURDAY...North winds to 30 kt. Freezing spray. Chance of snow
showers. Waves 8 to 12 ft occasionally to 16 ft.
.SUNDAY...Northwest winds 10 to 20 kt becoming west. Waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft.

Wave forecast is for ice free areas

$$

LMZ761-101630-
MAFOR 1010/
MICHIGAN NORTH 13443 19453 13443 12446. Patchy drizzle today.
Waves 8 to 11 feet occasionally to 14 feet today. Waves 6 to 9
feet occasionally to 12 feet tonight.

MICHIGAN SOUTH 14443 11443 12445 11444. Patchy drizzle today.
Areas of drizzle with a chance of rain tonight. Waves 6 to 9 feet
occasionally to 12 feet.

$$

RC

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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