fzus63 kmkx 140850
glflm 
expires:202512141615;;557656

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
250 am cst sun dec 14 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...

brisk northwest winds and heavy freezing spray will continue
across the open waters of lake mi this morning. winds will then 
gradually ease this afternoon and evening as a ridge of high 
pressure moves across the lake. low pressure then enters hudson 
bay as high pressure exits across the ohio valley, bringing brisk 
southwest winds late tonight into monday. a gale warning is now 
in effect for this time frame. a brief period of lighter winds 
develop monday night, but low pressure around 29.2 inches develops
and progresses eastward across southern canada into tuesday, 
bringing an additional round of brisk southwest winds and gale 
potential, especially across the northern half. winds diminish 
into wednesday as low pressure exits, but become gusty and 
southwesterly again thursday as an additional low pressure system 
progresses across the northern plains.


lmz261-362-364-366-563-565-567-868-141615-
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-
250 am cst sun dec 14 2025

sheboygan wi to pentwater mi north...

...heavy freezing spray warning in effect until 9 am cst this
morning...
...gale warning in effect from late tonight through monday
morning...

.today...northwest winds to 30 kt diminishing to 10 to 20 kt.
freezing spray this morning. chance of snow showers this morning,
then slight chance of light freezing rain and snow showers this
afternoon. waves 7 to 10 ft occasionally to 13 ft subsiding to
4 to 6 ft occasionally to 8 ft. 
.tonight...west winds 10 to 15 kt becoming southwest 10 to 20 kt
late in the evening, then increasing to 30 kt after midnight
increasing to gales to 35 kt late. slight chance of snow showers
in the evening, then chance of snow showers overnight. freezing
spray overnight. waves 3 to 5 ft building to 7 to 10 ft
occasionally to 13 ft. 
.monday...southwest gales to 35 kt becoming west to 30 kt late in
the morning, then diminishing to 15 to 25 kt early in the
afternoon diminishing to 10 to 20 kt late. freezing spray in the
morning. chance of snow showers in the morning. waves 8 to 12 ft
occasionally to 16 ft subsiding to 5 to 8 ft occasionally to
10 ft. 
.monday night...northwest winds 10 to 20 kt becoming southwest
10 to 15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to
1 to 3 ft. 
.tuesday...southwest winds to 30 kt increasing to gales to 40 kt
in the afternoon. waves 4 to 7 ft occasionally to 9 ft building
to 8 to 12 ft occasionally to 16 ft. 
.tuesday night...southwest gales to 40 kt becoming west. waves
10 to 14 ft occasionally to 18 ft subsiding to 8 to 11 ft
occasionally to 14 ft. 
.wednesday...northwest winds 15 to 25 kt becoming west 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to
4 ft. 
.thursday...south gales to 40 kt becoming west gales to 45 kt.
rain likely with a chance of snow. waves 18 to 23 ft occasionally
to 30 ft.  

$$

fzus63 kmkx 140850
glflm 
expires:202512141615;;557657

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
250 am cst sun dec 14 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...

brisk northwest winds and heavy freezing spray will continue
across the open waters of lake mi this morning. winds will then 
gradually ease this afternoon and evening as a ridge of high 
pressure moves across the lake. low pressure then enters hudson 
bay as high pressure exits across the ohio valley, bringing brisk 
southwest winds late tonight into monday. a gale warning is now 
in effect for this time frame. a brief period of lighter winds 
develop monday night, but low pressure around 29.2 inches develops
and progresses eastward across southern canada into tuesday, 
bringing an additional round of brisk southwest winds and gale 
potential, especially across the northern half. winds diminish 
into wednesday as low pressure exits, but become gusty and 
southwesterly again thursday as an additional low pressure system 
progresses across the northern plains.


lmz080-669-671-673-675-777-779-870-872-874-876-878-141615-
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-
250 am cst sun dec 14 2025

sheboygan wi to pentwater mi south...

...heavy freezing spray warning in effect until 9 am cst this
morning...
...gale warning in effect from late tonight through monday
morning...

.today...northwest winds to 30 kt becoming west 10 to 20 kt.
freezing spray. chance of snow showers and slight chance of light
freezing rain this morning, then slight chance of light freezing
rain this afternoon. waves 8 to 11 ft occasionally to 14 ft
subsiding to 7 to 10 ft occasionally to 13 ft. 
.tonight...west winds 10 to 20 kt becoming southwest 15 to 25 kt
after midnight, then increasing to gales to 35 kt late. freezing
spray overnight. waves 4 to 6 ft occasionally to 8 ft building to
7 to 10 ft occasionally to 13 ft. 
.monday...southwest gales to 35 kt becoming west to 30 kt early
in the afternoon, then diminishing to 15 to 25 kt late. freezing
spray in the morning. waves 10 to 14 ft occasionally to 18 ft
subsiding to 7 to 10 ft occasionally to 13 ft. 
.monday night...west winds 10 to 20 kt becoming southwest 10 to
15 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to
4 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft building to 8 to 12 ft
occasionally to 16 ft. 
.tuesday night...southwest winds to 30 kt becoming west. waves
8 to 12 ft occasionally to 16 ft subsiding to 8 to 11 ft
occasionally to 14 ft. 
.wednesday...west winds 10 to 20 kt becoming southwest. waves
5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.thursday...southwest gales to 40 kt becoming west gales to
45 kt. chance of rain. waves 18 to 23 ft occasionally to 30 ft.  

$$