Marine Forecast Map
Click on any of the red dots to view the marine forecast for that area.
Major US Cities
Marine Forecast Report


FZUS63 KLOT 230843
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
243 AM CST Tue Jan 23 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 central lower
Michigan will move to southern Quebec by this evening. Weak high
pressure ridging of 30.3 inches will move across the western Great
Lakes Wednesday, and to the northeast U.S. on Friday, while
strengthening to 30.7 inches. Another low of 29.4 inches will
develop in lee of the northern Rockies Thursday night, moving to
near James Bay by Saturday morning. A cold front trailing from
this low will push across the lake by late Saturday. Yet another
low may move over or south of the southern portion of the lake
Saturday evening.

LMZ261-362-364-366-563-565-231630-
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-
243 AM CST Tue Jan 23 2018

TWO RIVERS WI TO MANISTEE MI NORTH...

...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...North gales to 40 kt diminishing to gales to 35 kt.
Snow this morning. Waves 8 to 12 ft occasionally to 16 ft.
.TONIGHT...North winds to 30 kt diminishing to 10 to 20 kt. Waves
8 to 11 ft occasionally to 14 ft subsiding to 4 to 6 ft
occasionally to 8 ft.
.WEDNESDAY...North winds 10 to 15 kt becoming variable less than
10 kt. Waves 3 to 5 ft subsiding to 1 to 3 ft.
.WEDNESDAY NIGHT...Variable winds 5 to 10 kt becoming southwest.
Waves 1 to 2 ft.
.THURSDAY...Southwest winds 10 to 15 kt becoming south 10 to
20 kt. Waves 1 to 2 ft.
.THURSDAY NIGHT...Southeast winds 10 to 20 kt becoming south and
increasing to 30 kt late. Waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft.
.FRIDAY...South winds to 30 kt increasing to gales to 35 kt.
Waves 5 to 8 ft occasionally to 10 ft building to 8 to 11 ft
occasionally to 14 ft.
.SATURDAY...Southwest winds to 30 kt becoming west. Waves 8 to
11 ft occasionally to 14 ft subsiding to 4 to 7 ft occasionally
to 9 ft.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-231630-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 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 Pentwater to Manistee MI 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-
243 AM CST Tue Jan 23 2018

TWO RIVERS WI TO MANISTEE MI SOUTH...

...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Northwest gales to 40 kt diminishing to gales to 35 kt.
Snow and rain likely this morning...then chance of snow showers
this afternoon. Waves 6 to 9 ft occasionally to 12 ft building to
10 to 14 ft occasionally to 18 ft.
.TONIGHT...Northwest winds to 30 kt diminishing to 10 to 20 kt.
Slight chance of snow showers in the evening. Waves 8 to 12 ft
occasionally to 16 ft subsiding to 4 to 7 ft occasionally to
9 ft.
.WEDNESDAY...Northwest winds 10 to 15 kt becoming west. Waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.WEDNESDAY NIGHT...West winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 1 to 3 ft.
.THURSDAY...South winds 10 to 20 kt becoming southeast. Waves 2
to 4 ft.
.THURSDAY NIGHT...Southeast winds 10 to 20 kt becoming south and
increasing to 30 kt late. Waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft.
.FRIDAY...South winds to 30 kt. Waves 5 to 8 ft occasionally to
10 ft building to 7 to 10 ft occasionally to 13 ft.
.SATURDAY...Southwest winds to 30 kt becoming west 10 to 20 kt in
the afternoon. Waves 6 to 9 ft occasionally to 12 ft subsiding to
4 to 6 ft occasionally to 8 ft.

$$

LMZ761-231630-
MAFOR 2310/
MICHIGAN NORTH...Gale Warning in effect...12857 13850 11840
11830 11820. Waves 10 to 14 ft occasionally to 18 ft today. Waves
8 to 11 ft occasionally to 14 ft subsiding to 4 to 6 ft
occasionally to 8 ft tonight.

MICHIGAN SOUTH...Gale Warning in effect...12757 13750 11740 11730
11720. Chance of snow showers this afternoon. Waves 6 to 9 ft
occasionally to 12 ft building to 10 to 14 ft occasionally to 18
ft today. Waves 8 to 12 ft occasionally to 16 ft subsiding to 4 to
7 ft occasionally to 9 ft tonight.

$$

RC

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

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

More in Boat & Beach
Featured Tool:

View complete marine weather reports for various on and off-shore locations.
Boat & Beach Weather Maps
Advertisements