(1/2)
Latest Great Lakes Marine Forecast by KMKX
Issued 1/30/2026 3:07 AM US/Central.
Valid through 1/30/2026 10:30 AM US/Central.
fzus63 kmkx 300907
glflm
expires:202601301630;;784186
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
307 am cst fri jan 30 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...
northeast winds will develop early this morning and increase
through the day. lake effect snow showers will prevail mainly over
the west half of the lake. strong high pressure of 30.8 inches
over manitoba early this morning will then track south through the
northern and central great plains through tonight. this will
maintain brisk north winds over lake michigan throught saturday
with a period of moderate freezing spray as well. a ridge of high
pressure will then shift across the lake saturday night with light
and variable winds expected. modest southwest winds will develop
for sunday into sunday night as a trough of low pressure approaches
from the west. the trough will then pass and shift the winds to
northwesterly for monday.
lmz261-362-364-366-563-565-567-868-301630-
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-
307 am cst fri jan 30 2026
sheboygan wi to pentwater mi north...
.today...northeast winds 10 to 20 kt becoming north 15 to 25 kt.
chance of snow showers this morning, then chance of snow showers
and slight chance of light freezing rain this afternoon. waves
4 to 6 ft occasionally to 8 ft.
.tonight...north winds to 30 kt diminishing to 15 to 25 kt.
freezing spray. chance of snow showers. waves 4 to 7 ft
occasionally to 9 ft building to 6 to 9 ft occasionally to 12 ft.
.saturday...north winds 15 to 25 kt diminishing to 10 to 20 kt.
freezing spray in the morning. waves 6 to 9 ft occasionally to
12 ft subsiding to 3 to 5 ft.
.saturday night...north winds 10 to 15 kt backing to west. waves
2 to 4 ft subsiding to 1 to 2 ft.
.sunday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 2 to 4 ft.
.sunday night...southwest winds 10 to 20 kt becoming west 10 to
15 kt. chance of snow showers. waves 2 to 4 ft.
.monday...northwest winds 10 to 20 kt. waves 2 to 4 ft.
.tuesday...north winds 5 to 10 kt becoming northwest 10 to 15 kt.
waves 1 to 3 ft.
$$
(2/2)
Latest Great Lakes Marine Forecast by KMKX
Issued 1/30/2026 3:07 AM US/Central.
Valid through 1/30/2026 10:30 AM US/Central.
fzus63 kmkx 300907
glflm
expires:202601301630;;784187
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
307 am cst fri jan 30 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...
northeast winds will develop early this morning and increase
through the day. lake effect snow showers will prevail mainly over
the west half of the lake. strong high pressure of 30.8 inches
over manitoba early this morning will then track south through the
northern and central great plains through tonight. this will
maintain brisk north winds over lake michigan throught saturday
with a period of moderate freezing spray as well. a ridge of high
pressure will then shift across the lake saturday night with light
and variable winds expected. modest southwest winds will develop
for sunday into sunday night as a trough of low pressure approaches
from the west. the trough will then pass and shift the winds to
northwesterly for monday.
lmz080-669-671-673-675-777-779-870-872-874-876-878-301630-
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-
307 am cst fri jan 30 2026
sheboygan wi to pentwater mi south...
.today...northeast winds 10 to 20 kt becoming north 15 to 25 kt.
chance of snow showers. waves 4 to 6 ft occasionally to 8 ft.
.tonight...north winds 15 to 25 kt increasing to 30 kt. freezing
spray. chance of snow showers. waves 4 to 7 ft occasionally to
9 ft building to 7 to 10 ft occasionally to 13 ft.
.saturday...north winds to 30 kt diminishing to 10 to 20 kt.
freezing spray in the morning. chance of snow showers. waves 6 to
9 ft occasionally to 12 ft subsiding to 4 to 7 ft occasionally to
9 ft.
.saturday night...north winds 10 to 20 kt becoming northwest 5 to
10 kt overnight. chance of snow showers in the evening. waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.sunday...southwest winds 10 to 15 kt. waves 2 to 4 ft.
.sunday night...southwest winds 10 to 20 kt. chance of snow
showers. waves 2 to 4 ft.
.monday...west winds 10 to 15 kt becoming northwest 10 to 20 kt.
waves 2 to 4 ft.
.tuesday...northwest winds 10 to 15 kt. waves 2 to 4 ft.
$$
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