Expires:202507180345;;612371
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.


LMZ761-180345-
MAFOR 1722/
MICHIGAN NORTH 11820 12110 11200 11300 11400 12500. Waves 3 to 5
feet subsiding to 1 to 3 feet tonight. Waves 1 foot or less
Friday. 

MICHIGAN SOUTH 12820 12110 12210 12300. Waves 3 to 6 feet
subsiding to 1 to 3 feet tonight. Waves 1 to 3 feet Friday. 

$$


Gehring

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

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