Forecast for Lake Michigan

878 
FZUS63 KLOT 240833
GLFLM 

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
233 AM CST Fri Nov 24 2017

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 29.2 inches over western Ontario will
deepen to 29.1 inches as it passes north of the Lakes today. A 
cold front trailing the low will move across Lake Michigan 
tonight, as high pressure of 30.1 inches builds across the Plains.
This high will move across the western Great Lakes over the 
weekend, before a 29.8 inch low passes over, or very close to the 
northern Great Lakes Sunday. High pressure of 30.2 inches will 
then build across the Great Lakes through early next week.

LMZ261-362-364-366-563-565-567-868-241630-
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-
233 AM CST Fri Nov 24 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.TODAY...Southwest gales to 40 kt. Slight chance of rain showers
this morning...then chance of rain showers this afternoon. Waves 
8 to 12 ft occasionally to 16 ft building to 10 to 14 ft 
occasionally to 18 ft. 
.TONIGHT...West gales to 35 kt becoming northwest to 30 kt. 
Chance of rain showers in the evening. Waves 8 to 11 ft 
occasionally to 14 ft subsiding to 6 to 9 ft occasionally to 12 
ft. 
.SATURDAY...Northwest winds to 30 kt. Waves 4 to 7 ft
occasionally to 9 ft. 
.SATURDAY NIGHT...Northwest winds 15 to 25 kt becoming west 10 to
20 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.SUNDAY...West winds to 30 kt becoming northwest. Waves 4 to 7 ft
occasionally to 9 ft. 
.SUNDAY NIGHT...Northwest winds 15 to 25 kt becoming north 10 to
20 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft. 
.MONDAY...Northeast winds 10 to 20 kt veering to south to 30 kt
in the afternoon. Waves 1 to 2 ft building to 3 to 5 ft. 
.TUESDAY...Southwest winds to 30 kt becoming west. Waves 6 to
9 ft occasionally to 12 ft.  

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-241630-
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-
233 AM CST Fri Nov 24 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WARNING IN EFFECT FROM 6 AM CST THIS MORNING THROUGH THIS
EVENING...

.TODAY...Southwest winds to 30 kt increasing to gales to 40 kt. 
Waves 6 to 9 ft occasionally to 12 ft building to 10 to 14 ft 
occasionally to 18 ft. 
.TONIGHT...Southwest gales to 35 kt becoming northwest to 30 kt.
Slight chance of rain showers in the evening. Waves 8 to 11 ft
occasionally to 14 ft subsiding to 6 to 9 ft occasionally to
12 ft. 
.SATURDAY...Northwest winds to 30 kt. Waves 6 to 9 ft
occasionally to 12 ft. 
.SATURDAY NIGHT...Northwest winds 15 to 25 kt becoming west 10 to
20 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft. 
.SUNDAY...Southwest winds 15 to 25 kt becoming west. Waves 3 to
5 ft. 
.SUNDAY NIGHT...Northwest winds 15 to 25 kt becoming north 10 to
15 kt overnight. Waves 3 to 5 ft subsiding to 2 to 4 ft. 
.MONDAY...Southeast winds 10 to 20 kt becoming south to 30 kt in
the afternoon. Waves 1 to 2 ft building to 3 to 5 ft. 
.TUESDAY...Southwest winds to 30 kt. Waves 6 to 9 ft occasionally
to 12 ft.  

$$

LMZ761-241630-
MAFOR 2410/
MICHIGAN NORTH...Gale Warning in effect...14550 11550 11650 
12740. Chance of showers today. Chance of rain showers this 
evening. Waves 8 to 12 feet occasionally to 16 feet building to 10
to 14 feet occasionally to 18 feet today. Waves 8 to 11 feet 
occasionally to 14 feet subsiding to 6 to 9 feet occasionally to 
12 feet tonight. 

MICHIGAN SOUTH...Gale Warning in effect...11540 12550 11450 12550
11640 11740. Waves 6 to 9 feet occasionally to 12 feet building 
to 10 to 14 feet occasionally to 18 feet today. Waves 8 to 11 feet
occasionally to 14 feet subsiding to 6 to 9 feet occasionally to 
12 feet tonight. 

$$


Rodriguez

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

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