fzus63 kmkx 051402
glflm 
expires:202610052115;;574754

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt mon oct 5 2026

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...

northwest winds will gradually decrease this morning as high 
pressure of 30.2 inches enters from the west.

low pressure of 29.4 inches will build toward the hudson bay 
tuesday through thursday. ahead of this low, south southwest 
winds will increase tuesday afternoon through wednesday and 
become gusty. a gale watch is in effect tuesday afternoon and
evening for the north half of the lake. the low will pull a cold 
front across the waters wednesday night into thursday, delivering 
scattered showers and shifting winds to the west northwest.


lmz261-362-364-366-563-565-567-868-052115-
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-
902 am cdt mon oct 5 2026

sheboygan wi to pentwater mi north...

...gale watch in effect from tuesday afternoon through tuesday
evening...

.rest of today...northwest winds 15 to 25 kt becoming north 10 to
20 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.tonight...northeast winds 10 to 15 kt veering to south 10 to
20 kt. chance of showers overnight. waves 1 to 2 ft building to
2 to 4 ft. 
.tuesday...south winds 15 to 25 kt increasing to gales to 40 kt.
chance of showers. waves 4 to 6 ft occasionally to 8 ft building
to 10 to 14 ft occasionally to 18 ft. 
.tuesday night...southwest gales to 40 kt becoming west to 30 kt
overnight. waves 8 to 12 ft occasionally to 16 ft subsiding to
5 to 8 ft occasionally to 10 ft. 
.wednesday...northwest winds 15 to 25 kt becoming west. waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.wednesday night...west winds 10 to 20 kt becoming northwest.
waves 3 to 5 ft. 
.thursday...northwest winds 15 to 25 kt becoming west. waves 3 to
5 ft. 
.friday...west winds 10 to 20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 051402
glflm 
expires:202610052115;;574755

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt mon oct 5 2026

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...

northwest winds will gradually decrease this morning as high 
pressure of 30.2 inches enters from the west.

low pressure of 29.4 inches will build toward the hudson bay 
tuesday through thursday. ahead of this low, south southwest 
winds will increase tuesday afternoon through wednesday and 
become gusty. a gale watch is in effect tuesday afternoon and
evening for the north half of the lake. the low will pull a cold 
front across the waters wednesday night into thursday, delivering 
scattered showers and shifting winds to the west northwest.


lmz080-669-671-673-675-777-779-870-872-874-876-878-052115-
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-
902 am cdt mon oct 5 2026

sheboygan wi to pentwater mi south...

.rest of today...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tonight...northeast winds 5 to 10 kt becoming east late in the
evening, then becoming southeast 10 to 15 kt after midnight
becoming south 10 to 20 kt late. waves 1 to 3 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. a few
gusts to gale force possible in the late afternoon and early
evening. waves 3 to 5 ft building to 7 to 10 ft occasionally to 
13 ft. 
.tuesday night...southwest winds to 30 kt diminishing to 15 to 25
kt overnight. waves 7 to 10 ft occasionally to 13 ft subsiding to
5 to 8 ft occasionally to 10 ft. 
.wednesday...west winds 10 to 20 kt. waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft. 
.wednesday night...west winds 10 to 20 kt becoming northwest.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.thursday...northwest winds 10 to 20 kt becoming west. waves 4 to
6 ft occasionally to 8 ft. 
.friday...west winds 10 to 20 kt. waves 2 to 4 ft.  

$$