Forecast for Lake Michigan

000
FZUS63 KLOT 200746
GLFLM 

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
246 AM CDT Wed Jun 20 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...A nearly stationary frontal boundary will remain
stretched west to east across Illinois and Indiana, south of the
lake, through Thursday. High pressure of 30.1 inches will extend
from the far northern Great Plains to southeast Ontario through 
the end of the week. A 29.6 inch low will form over the Central 
Plains Wednesday and meander around the Central Plains and Middle 
Mississippi Valley through Friday. This low will finally move 
across the Great Lakes region on Saturday.

LMZ261-362-364-366-563-565-567-868-201400-
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-
246 AM CDT Wed Jun 20 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...North winds around 10 kt becoming northwest. Waves 1 ft 
or less. 
.TONIGHT...North winds 10 to 15 kt becoming northeast 10 to 20 
kt late. Waves 1 to 3 ft. 
.THURSDAY...Northeast winds 10 to 20 kt. Waves 2 to 4 ft.
.THURSDAY NIGHT...East winds 10 to 15 kt. Waves 2 to 4 ft. 
.FRIDAY...East winds 10 to 15 kt becoming northeast. Waves 1 to
2 ft. 
.FRIDAY NIGHT...Northeast winds 10 to 15 kt. Waves 1 to 2 ft. 
.SATURDAY...Northeast winds 10 to 15 kt becoming north. Waves 1 
to 3 ft. 
.SUNDAY...North winds 10 to 20 kt. Waves 2 to 4 ft.

$$

LMZ669-671-870-872-201400-
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 Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
246 AM CDT Wed Jun 20 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH TO NORTH POINT LIGHT WI TO
GRAND HAVEN MI...

.TODAY...Northeast winds 10 to 20 kt becoming north. Waves 1 to 
3 ft. 
.TONIGHT...North winds 10 to 15 kt becoming northeast. Waves 1 
to 3 ft.
.THURSDAY...Northeast winds 10 to 15 kt becoming north 10 to 20 
kt. Waves 1 to 3 ft.
.THURSDAY NIGHT...Northeast winds 10 to 20 kt becoming east.
Waves 3 to 5 ft. 
.FRIDAY...Northeast winds 10 to 20 kt. Chance of showers in the
afternoon. Waves 2 to 4 ft. 
.FRIDAY NIGHT...Northeast winds 10 to 20 kt diminishing to 10 to
15 kt. Chance of showers. Waves 1 to 3 ft. 
.SATURDAY...North winds 10 to 15 kt. Waves 1 to 3 ft. 
.SUNDAY...North winds 10 to 20 kt. Waves 2 to 4 ft.

$$

LMZ080-673-675-777-779-874-876-878-201400-
Lake Michigan from Michigan City IN to St. Joseph MI 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 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-
246 AM CDT Wed Jun 20 2018

NORTH POINT LIGHT WI TO GRAND HAVEN MI SOUTH...

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...Northeast winds 10 to 20 kt becoming north. Areas of
dense fog this morning. Slight chance of showers and
thunderstorms this morning. Waves 2 to 4 ft. 
.TONIGHT...North winds 10 to 20 kt becoming east 10 to 15 kt.
Waves 1 to 3 ft. 
.THURSDAY...East winds 10 to 15 kt becoming northeast 10 to 20 
kt. Waves 1 to 3 ft.
.THURSDAY NIGHT...Northeast winds 10 to 20 kt becoming east.
Chance of showers overnight. Waves 3 to 5 ft. 
.FRIDAY...East winds 10 to 20 kt becoming northeast. Chance of
showers. Waves 3 to 5 ft. 
.FRIDAY NIGHT...Northeast winds 10 to 20 kt diminishing to 10 to
15 kt. Chance of showers. Waves 2 to 4 ft. 
.SATURDAY...North winds 10 to 15 kt becoming northwest. Waves 1 
to 3 ft.
.SUNDAY...North winds 5 to 10 kt increasing to 10 to 20 kt in 
the afternoon. Waves 1 to 3 ft building to 3 to 5 ft. 

$$

LMZ761-201400-
MAFOR 2009/
MICHIGAN NORTH 12800 11810 12710 12810 11110. Waves 1 ft or 
less today. Waves 1 to 3 ft tonight.

MICHIGAN SOUTH 12124 11120 13820 12110. Waves 2 to 4 ft today. 
Waves 1 to 3 ft tonight.

$$

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

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