Expires:202507180345;;612369
FZUS63 KMKX 171923
GLFLM 

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
223 PM CDT Thu Jul 17 2025

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... 

Modest northerly winds will gradually weaken into the evening as 
high pressure around 30.1 inches moves from northern Minnesota to 
northern Lake Michigan by this evening. The high will then move to
the Mid Atlantic States by Friday night while low pressure around
29.8 inches moves into the Upper Mississippi River Valley. Thus 
light to modest northeast winds this evening will become light and
variable late tonight into Friday evening. Light to modest 
southerly winds will then develop Saturday morning ahead of the 
approaching weak low with winds turning northerly again after the 
lows passage by Saturday evening. Light to modest northeast winds 
will then prevail late Saturday night into Sunday while another 
high pressure area around 30.1 inches sets up over Lake Superior.


LMZ261-362-364-366-563-565-567-868-180345-
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-
223 PM CDT Thu Jul 17 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...North winds 10 to 20 kt becoming northeast 10 to
15 kt, then veering to east late. Waves 3 to 5 ft subsiding to
1 to 3 ft. 
.FRIDAY...Southeast winds 5 to 10 kt veering to southwest. Waves
1 to 2 ft. 
.FRIDAY NIGHT...Southeast winds 5 to 10 kt becoming south. Waves
1 ft or less. 
.SATURDAY...South winds 10 to 15 kt veering to northwest 10 to
20 kt. Chance of showers and thunderstorms in the morning, then
chance of showers in the afternoon. Waves 1 to 2 ft. 
.SATURDAY NIGHT...North winds 10 to 15 kt. Waves 1 to 2 ft. 
.SUNDAY...Northeast winds 10 to 15 kt becoming north. Waves 1 to
2 ft. 
.SUNDAY NIGHT...Northeast winds 10 to 15 kt becoming east. Waves
1 to 2 ft. 
.MONDAY...Southeast winds 10 to 20 kt becoming east. Waves 1 to
3 ft. 
.TUESDAY...South winds 10 to 20 kt. Waves 1 to 3 ft.  

$$