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National Weather Service Marine Forecast FZUS63 KMKX

FZUS63 KMKX 210151
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
851 PM CDT Sat Apr 20 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 over western New York will continue to
weaken as it moves off to the northeast tonight. Meanwhile, weak
high pressure of 29.9 inches will move into the northeastern part
of the country through Sunday. Winds are becoming light and
variable across Lake Michigan this evening, but will turn
southerly by sunrise on Sunday...gradually increasing through the
day. Low pressure of 29.7 inches should then move from Kansas to
lower Michigan Sunday night through Tuesday. Winds may be gusty at
times during this period, becoming north on Tuesday.

LMZ261-362-364-366-563-565-567-868-210915-
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-
851 PM CDT Sat Apr 20 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

REST OF TONIGHT
North winds 5 to 10 kt backing to south. Waves
1 to 2 ft subsiding to 1 ft or less.

SUNDAY
South winds 10 to 15 kt becoming southeast 10 to 20 kt.
Waves 1 to 2 ft building to 2 to 4 ft.

SUNDAY NIGHT
Southeast winds 10 to 20 kt becoming south. Waves
2 to 4 ft.

MONDAY
South winds 10 to 20 kt backing to east. Chance of rain
showers. Waves 3 to 5 ft.

MONDAY NIGHT
Northeast winds 10 to 20 kt. Chance of rain
showers in the evening, then rain showers likely overnight. Waves
2 to 4 ft.

TUESDAY
North winds 15 to 25 kt. Chance of rain showers. Waves
3 to 5 ft.

TUESDAY NIGHT
North winds 10 to 20 kt. Waves 3 to 5 ft.

WEDNESDAY
North winds 10 to 15 kt backing to west. Waves 1 to
3 ft subsiding to 1 to 2 ft.

THURSDAY
South winds 10 to 20 kt becoming southwest. Chance of
rain showers. Waves 2 to 4 ft. 



LMZ080-669-671-673-675-777-779-870-872-874-876-878-210915-
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-
851 PM CDT Sat Apr 20 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

REST OF TONIGHT
North winds around 10 kt backing to southwest
5 to 10 kt after midnight, then increasing to 10 to 15 kt late.
Waves 3 to 5 ft subsiding to 1 to 3 ft.

SUNDAY
South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 2 ft building to 2 to 4 ft.

SUNDAY NIGHT
South winds 10 to 20 kt. Waves 2 to 4 ft.

MONDAY
South winds 10 to 20 kt. Waves 3 to 5 ft.

MONDAY NIGHT
South winds 10 to 20 kt becoming southwest.
Chance of rain showers and thunderstorms in the evening, then
chance of rain showers overnight. Waves 2 to 4 ft.

TUESDAY
Northwest winds 10 to 20 kt becoming north 15 to
25 kt. Chance of rain showers. Waves 3 to 5 ft.

TUESDAY NIGHT
North winds 15 to 25 kt diminishing to 10 to
20 kt. Waves 3 to 5 ft.

WEDNESDAY
North winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 2 to 4 ft.

THURSDAY
Southwest winds 10 to 20 kt. Waves 1 to 3 ft. 



LMZ761-210915-
MAFOR 2103/
MICHIGAN NORTH 12400 12410 12420 12320. Waves 1 ft or less
overnight. Waves 2 to 4 ft building to 3 to 5 ft Sunday. Waves 3
to 5 ft Sunday evening.

MICHIGAN SOUTH 11810 11400 11510 11410 14420. Waves 2 to 4 ft
overnight and Sunday. Waves 3 to 5 ft subsiding to 2 to 4 ft
Sunday 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