(1/2)
Latest Great Lakes Marine Forecast by KMKX
Issued 10/5/2026 9:02 PM US/Central.
Valid through 10/6/2026 4:45 AM US/Central.
fzus63 kmkx 060202
glflm
expires:202610060945;;602896
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 pm 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...
winds then turn south into tonight as 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
and become gusty. a gale warning is in effect tuesday afternoon
and evening for the north half of the lake, north of a port
washington wi to whitehall mi line, with southwest gales to 40 kt
expected. the low will pull a cold front across the waters late
tuesday night into wednesday shifting winds to the west-northwest.
lmz366-565-567-669-868-870-060945-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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 sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
902 pm cdt mon oct 5 2026
sturgeon bay wi to point betsie mi south to port washington wi to
whitehall mi...
...gale warning in effect from tuesday afternoon through tuesday
evening...
.rest of tonight...east winds 5 to 10 kt becoming southeast late
this evening, then becoming south after midnight becoming 10 to
20 kt late. chance of showers overnight. waves 1 to 2 ft building
to 2 to 4 ft.
.tuesday...south winds to 30 kt increasing to gales to 35 kt.
waves 4 to 6 ft occasionally to 8 ft building to 7 to 10 ft
occasionally to 13 ft.
.tuesday night...southwest gales to 35 kt diminishing to 30 kt
late in the evening, then becoming southwest to 30 kt after
midnight becoming west 15 to 25 kt late. waves 8 to 11 ft
occasionally to 14 ft subsiding to 6 to 9 ft occasionally to
12 ft.
.wednesday...northwest winds 10 to 20 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 diminishing to 10 to
20 kt. waves 3 to 5 ft.
.thursday night...northwest winds 10 to 20 kt becoming west 10 to
15 kt. waves 2 to 4 ft.
.friday...west winds 10 to 20 kt. waves 1 to 3 ft.
.saturday...south winds to 30 kt. waves 4 to 7 ft occasionally to
9 ft building to 7 to 10 ft occasionally to 13 ft.
$$
(2/2)
Latest Great Lakes Marine Forecast by KMKX
Issued 10/5/2026 9:02 PM US/Central.
Valid through 10/6/2026 4:45 AM US/Central.
fzus63 kmkx 060202
glflm
expires:202610060945;;602897
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 pm 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...
winds then turn south into tonight as 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
and become gusty. a gale warning is in effect tuesday afternoon
and evening for the north half of the lake, north of a port
washington wi to whitehall mi line, with southwest gales to 40 kt
expected. the low will pull a cold front across the waters late
tuesday night into wednesday shifting winds to the west-northwest.
lmz080-671-673-675-777-779-872-874-876-878-060945-
lake michigan from michigan city in to st. joseph mi 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 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 pm cdt mon oct 5 2026
port washington wi to whitehall mi south...
.rest of tonight...east winds 5 to 10 kt becoming southeast 10 to
15 kt after midnight, then becoming south 10 to 20 kt late. waves
1 to 3 ft.
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
3 to 5 ft building to 6 to 9 ft occasionally to 12 ft.
.tuesday night...south winds to 30 kt becoming southwest 15 to
25 kt. waves 6 to 9 ft occasionally to 12 ft.
.wednesday...west winds 10 to 20 kt. waves 4 to 7 ft occasionally
to 9 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 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft.
.thursday night...northwest winds 10 to 20 kt becoming west 10 to
15 kt. waves 2 to 4 ft.
.friday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft.
.saturday...southeast winds to 30 kt becoming south. waves 6 to
9 ft occasionally to 12 ft.
$$
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