Expires:202110220330;;046341
FZUS63 KMKX 211951
GLFLM 

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
251 PM CDT Thu Oct 21 2021

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 29.7 inches over southern Ontario will move to southern
Quebec this evening. Northerly gales will gradually diminish from northern
Lake Michigan to southern Lake Michigan late this afternoon into
the early evening. 

Modest northwesterly winds will then prevail Friday and Saturday leading
to some lake effect shower activity over the eastern half of the 
lake. Some low level instability will be present supporting some 
waterspout threat with this lake effect shower activity, 
especially over the southern end of the lake.

Low pressure passing to the south late Sunday night and Monday may
then lead to easterly gales for the south half of the lake. 


LMZ261-362-364-366-563-565-567-868-220330-
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-
251 PM CDT Thu Oct 21 2021

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WARNING IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON...

.TONIGHT...North to 25 kt diminishing to 10 to 15 kt. Slight 
chance of rain. Waves 8 to 12 ft occasionally to 16 ft subsiding 
to 3 to 5 ft. 
.FRIDAY...Northwest winds 10 to 15 kt. Slight chance of rain.
Waves 2 to 4 ft subsiding to 1 to 3 ft. 
.FRIDAY NIGHT...Northwest winds 10 to 15 kt becoming north 10 to
20 kt. Chance of rain. Waves 1 to 3 ft. 
.SATURDAY...North winds 10 to 20 kt becoming northwest 10 to
15 kt. Waves 2 to 4 ft. 
.SATURDAY NIGHT...Northwest winds 10 to 15 kt. Waves 1 to 3 ft. 
.SUNDAY...North winds 10 to 15 kt becoming northeast 10 to 20 kt.
Waves 1 to 2 ft building to 2 to 4 ft. 
.SUNDAY NIGHT...East winds to 30 kt. Chance of rain. Waves 4 to
7 ft occasionally to 9 ft. 
.MONDAY...East winds to 30 kt. Chance of rain. Waves 4 to 7 ft
occasionally to 9 ft. 
.TUESDAY...East winds 10 to 20 kt. Waves 2 to 4 ft.  

$$