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(1/10)
Latest Great Lakes Marine Forecast by KDTX
Issued 11/24/2025 9:42 AM America/New_York.
Valid through 11/24/2025 5:45 PM America/New_York.
fzus63 kdtx 241442
glflh
expires:202511242245;;425020
open lake forecast for lake huron
national weather service detroit/pontiac mi
942 am est mon nov 24 2025
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...lighter winds around the rest of this evening and
tonight as a ridge of high pressure, 30.20 inches, has arrived.
light to moderate southerly flow on monday. next low pressure
system arrives on tuesday, leading to widespread rain. gales are
then likely to develop in wednesday-thursday time frame.
lhz361-362-242245-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
942 am est mon nov 24 2025
...gale watch in effect from wednesday morning through friday
morning...
.rest of today...south winds 10 to 15 knots increasing to 15 to
20 knots in the afternoon. waves 3 to 5 feet building to 4 to
6 feet late in the afternoon. waves occasionally around 8 feet.
.tonight...south winds 10 to 15 knots decreasing to 5 to 10 knots
after midnight. a chance of rain. waves 3 to 5 feet.
.tuesday...south winds 5 to 10 knots. rain likely in the
morning...then a chance of rain in the afternoon. waves 1 to
3 feet.
.tuesday night...southeast winds 5 to 10 knots increasing to
10 to 15 knots after midnight. rain likely in the evening...then
rain after midnight. waves 1 to 3 feet.
.wednesday...south winds 15 to 20 knots becoming southwest to
30 knots with gusts to 35 knot gales late in the morning...then
becoming west at 40 knot gales late in the afternoon. rain, snow.
waves 6 to 9 feet building to 14 to 18 feet. waves occasionally
around 23 feet. a gale warning may be needed.
.thursday...west at 40 knot gales veering to the northwest at
35 knot gales in the late evening and early morning. gusts to
45 knot gales. snow...then snow likely in the late evening and
early morning. waves 15 to 20 feet. waves occasionally around
25 feet.
.friday...northwest winds to 30 knots with gusts to 35 knot gales
decreasing to 15 to 20 knots. a chance of snow. waves 12 to
16 feet subsiding to 8 to 12 feet until early morning. waves
occasionally around 20 feet.
$$
(2/10)
Latest Great Lakes Marine Forecast by KDTX
Issued 11/24/2025 9:42 AM America/New_York.
Valid through 11/24/2025 5:45 PM America/New_York.
fzus63 kdtx 241442
glflh
expires:202511242245;;425021
open lake forecast for lake huron
national weather service detroit/pontiac mi
942 am est mon nov 24 2025
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...lighter winds around the rest of this evening and
tonight as a ridge of high pressure, 30.20 inches, has arrived.
light to moderate southerly flow on monday. next low pressure
system arrives on tuesday, leading to widespread rain. gales are
then likely to develop in wednesday-thursday time frame.
lhz363-462-242245-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
942 am est mon nov 24 2025
...gale watch in effect from wednesday morning through friday
morning...
.rest of today...south winds 10 to 15 knots increasing to 15 to
20 knots in the afternoon. waves 3 to 5 feet building to 4 to
6 feet late in the afternoon. waves occasionally around 8 feet.
.tonight...south winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. a chance of rain
after midnight. waves 3 to 5 feet.
.tuesday...south winds 5 to 10 knots. a chance of rain. waves
1 to 3 feet.
.tuesday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots after midnight. a chance of rain in the evening...
then rain likely after midnight. waves 1 to 3 feet.
.wednesday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest at 40 knot gales with gusts to
45 knot gales. rain likely. snow likely. waves 6 to 9 feet
building to 14 to 18 feet. waves occasionally around 23 feet. a
gale warning may be needed.
.thursday...west at 40 knot gales with gusts to 45 knot gales.
snow likely early in the morning...then snow early in the
evening. snow likely in the late evening and early morning. waves
18 to 23 feet. waves occasionally around 28 feet.
.friday...northwest at 35 knot gales with gusts to 40 knot gales
becoming west 15 to 20 knots. a chance of snow. waves 14 to
18 feet subsiding to 8 to 12 feet until early morning. waves
occasionally around 23 feet.
$$
(3/10)
Latest Great Lakes Marine Forecast by KMKX
Issued 11/24/2025 9:40 AM US/Central.
Valid through 11/24/2025 4:15 PM US/Central.
fzus63 kmkx 241540
glflm
expires:202511242215;;427565
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
940 am cst mon nov 24 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...
southerly winds will increase today as low pressure around 29.7
inches develops in the northern plains. the low will strengthen
to 29.6 inches as it tracks across minnesota on tuesday. the
associated cold front will surge across southern lake michigan
tuesday night and expand into northern lake michigan wednesday as
the low further deepens to 29.3 inches over eastern lake
superior. the strong low will generally maintain its strength as
it crosses ontario wednesday night and quebec on thursday.
westerly gales will likely develop over southern lake michigan
early wednesday morning and expand into the north half several
hours later. the westerly gales will become northwesterly
wednesday night and persist into thursday afternoon before
diminishing. a gale watch is in effect.
winds will diminish as high pressure of 30.5 inches crosses the
midwest on friday. look for southerly winds to develop sunday as
low pressure develops over the western half of the country.
lmz080-669-671-673-675-777-779-870-872-874-876-878-242215-
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-
940 am cst mon nov 24 2025
sheboygan wi to pentwater mi south...
...gale watch in effect from late tuesday night through thursday
evening...
.rest of today...south winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft.
.tonight...south winds 10 to 20 kt diminishing to 10 to 15 kt.
slight chance of rain in the evening, then chance of rain
overnight. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft.
.tuesday...south winds 5 to 10 kt. chance of rain in the morning.
waves 1 to 3 ft subsiding to 1 to 2 ft.
.tuesday night...south winds 10 to 20 kt becoming west gales to
35 kt overnight. rain in the evening, then chance of rain
overnight. waves 2 to 4 ft building to 8 to 11 ft occasionally to
14 ft.
.wednesday...west gales to 45 kt. rain and snow likely in the
morning, then snow likely in the afternoon. waves 12 to 16 ft
occasionally to 21 ft building to 14 to 18 ft occasionally to
23 ft.
.wednesday night...west gales to 45 kt diminishing to gales to
40 kt. chance of snow. waves 14 to 18 ft occasionally to 23 ft.
.thursday...northwest gales to 40 kt. chance of snow. waves 12 to
16 ft occasionally to 21 ft.
.friday...northwest winds to 30 kt diminishing to 10 to 20 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
$$
(4/10)
Latest Great Lakes Marine Forecast by KMKX
Issued 11/24/2025 9:40 AM US/Central.
Valid through 11/24/2025 4:15 PM US/Central.
fzus63 kmkx 241540
glflm
expires:202511242215;;427564
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
940 am cst mon nov 24 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...
southerly winds will increase today as low pressure around 29.7
inches develops in the northern plains. the low will strengthen
to 29.6 inches as it tracks across minnesota on tuesday. the
associated cold front will surge across southern lake michigan
tuesday night and expand into northern lake michigan wednesday as
the low further deepens to 29.3 inches over eastern lake
superior. the strong low will generally maintain its strength as
it crosses ontario wednesday night and quebec on thursday.
westerly gales will likely develop over southern lake michigan
early wednesday morning and expand into the north half several
hours later. the westerly gales will become northwesterly
wednesday night and persist into thursday afternoon before
diminishing. a gale watch is in effect.
winds will diminish as high pressure of 30.5 inches crosses the
midwest on friday. look for southerly winds to develop sunday as
low pressure develops over the western half of the country.
lmz261-362-364-366-563-565-567-868-242215-
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-
940 am cst mon nov 24 2025
sheboygan wi to pentwater mi north...
...gale watch in effect from wednesday morning through late
thursday night...
.rest of today...southwest winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft.
.tonight...southwest winds 10 to 20 kt becoming south 5 to 10 kt.
chance of rain. patchy fog overnight. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft.
.tuesday...south winds 5 to 10 kt increasing to 10 to 15 kt.
chance of rain. waves 1 to 3 ft.
.tuesday night...south winds 10 to 20 kt becoming southwest to
30 kt overnight. rain. waves 2 to 4 ft building to 6 to 9 ft
occasionally to 12 ft.
.wednesday...west gales to 40 kt increasing to gales to 45 kt.
rain in the morning, then rain and snow in the afternoon. waves
12 to 16 ft occasionally to 21 ft.
.wednesday night...northwest gales to 45 kt diminishing to gales
to 40 kt. snow. waves 12 to 16 ft occasionally to 21 ft.
.thursday...northwest gales to 40 kt. chance of snow. waves 10 to
14 ft occasionally to 18 ft subsiding to 8 to 11 ft occasionally
to 14 ft.
.friday...northwest winds to 30 kt. chance of snow. waves 5 to
8 ft occasionally to 10 ft subsiding to 3 to 5 ft.
$$
(5/10)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/24/2025 9:58 AM America/New_York.
Valid through 11/24/2025 4:00 PM America/New_York.
fzus63 kmqt 241458
glfls
expires:202511242100;;425584
open lake forecast for lake superior
national weather service marquette mi
958 am est mon nov 24 2025
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.8 inch trough over minnesota this morning moves over the lake
today. tonight into tuesday, a 29.8 inch low will organize just west
of the great lakes, deepening to 29.6 inches tuesday night over the
upper peninsula and passing over eastern lake superior at 29.3
inches wednesday. this low deepens further to 29.2 inches over
quebec thursday while 30.5 inch high pressure builds over the
northern great plains. this high moves over lake superior friday
into the weekend.
lsz264-242100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
958 am est mon nov 24 2025
...gale watch in effect from tuesday evening through thursday
evening...
.rest of today...southwest winds 15 to 25 knots veering west by
late morning, then diminishing to 5 to 15 knots by mid afternoon.
waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to
4 feet.
.tonight...north winds 5 to 15 knots veering northeast by
midnight. waves subsiding to calm to 2 feet.
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a slight chance of rain in the
morning, then rain likely, possibly mixed with snow in the
afternoon. waves building to 3 to 6 feet occasionally to 8 feet.
.tuesday night...northeast gales to 45 knots. rain in the
evening. snow. a slight chance of rain after midnight. waves
building to 12 to 17 feet occasionally to 21 feet.
.wednesday...north gales to 45 knots. a slight chance of rain in
the morning. snow. waves 12 to 17 feet occasionally to 21 feet.
.wednesday night...north gales to 40 knots backing northwest
after midnight. snow showers. waves 12 to 17 feet occasionally to
21 feet.
.thursday...northwest gales to 40 knots. a chance of snow
showers. waves subsiding to 5 to 8 feet occasionally to 10 feet.
.friday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet.
$$
(6/10)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/24/2025 9:58 AM America/New_York.
Valid through 11/24/2025 4:00 PM America/New_York.
fzus63 kmqt 241458
glfls
expires:202511242100;;425585
open lake forecast for lake superior
national weather service marquette mi
958 am est mon nov 24 2025
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.8 inch trough over minnesota this morning moves over the lake
today. tonight into tuesday, a 29.8 inch low will organize just west
of the great lakes, deepening to 29.6 inches tuesday night over the
upper peninsula and passing over eastern lake superior at 29.3
inches wednesday. this low deepens further to 29.2 inches over
quebec thursday while 30.5 inch high pressure builds over the
northern great plains. this high moves over lake superior friday
into the weekend.
lsz265-242100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
958 am est mon nov 24 2025
...gale watch in effect from late tuesday night through thursday
evening...
.rest of today...southwest winds 15 to 25 knots becoming west
10 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to calm to 2 feet.
.tonight...north winds 5 to 15 knots veering northeast by
midnight. a slight chance of rain after midnight. waves calm to
2 feet.
.tuesday...northeast winds 10 to 20 knots increasing to 20 to
30 knots by mid afternoon. a chance of rain in the morning, then
rain in the afternoon. waves building to 3 to 6 feet occasionally
to 8 feet.
.tuesday night...northeast winds 20 to 30 knots increasing to
gales to 35 knots after midnight. rain. snow after midnight.
waves building to 10 to 14 feet occasionally to 18 feet.
.wednesday...north gales to 45 knots. snow, possibly mixed with
rain. waves building to 12 to 17 feet occasionally to 21 feet.
.wednesday night...northwest storm force winds to 50 knots
diminishing to gales to 45 knots after midnight. snow showers.
waves subsiding to 12 to 17 feet occasionally to 21 feet.
.thursday...northwest gales to 40 knots. snow showers. waves
subsiding to 5 to 8 feet occasionally to 10 feet.
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves subsiding to calm to
2 feet.
$$
(7/10)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/24/2025 9:58 AM America/New_York.
Valid through 11/24/2025 4:00 PM America/New_York.
fzus63 kmqt 241458
glfls
expires:202511242100;;425586
open lake forecast for lake superior
national weather service marquette mi
958 am est mon nov 24 2025
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.8 inch trough over minnesota this morning moves over the lake
today. tonight into tuesday, a 29.8 inch low will organize just west
of the great lakes, deepening to 29.6 inches tuesday night over the
upper peninsula and passing over eastern lake superior at 29.3
inches wednesday. this low deepens further to 29.2 inches over
quebec thursday while 30.5 inch high pressure builds over the
northern great plains. this high moves over lake superior friday
into the weekend.
lsz266-242100-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
958 am est mon nov 24 2025
...gale watch in effect from late tuesday night through late
thursday night...
.rest of today...southwest winds 15 to 25 knots becoming west
10 to 20 knots by mid afternoon. waves 4 to 7 feet occasionally
to 9 feet subsiding to 2 to 4 feet.
.tonight...north winds 5 to 15 knots veering northeast by
midnight. a slight chance of rain after midnight. waves subsiding
to calm to 2 feet.
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a chance of rain in the morning, then
rain in the afternoon. waves building to 3 to 6 feet occasionally
to 8 feet.
.tuesday night...northeast gales to 40 knots. a slight chance of
snow in the evening. rain. snow after midnight. waves building to
10 to 14 feet occasionally to 18 feet.
.wednesday...north gales to 45 knots. rain in the morning. snow.
a slight chance of rain in the afternoon. waves building to 15 to
20 feet occasionally to 25 feet.
.wednesday night...north gales to 45 knots increasing to storm
force winds to 50 knots after midnight. snow showers. waves 15 to
20 feet occasionally to 25 feet.
.thursday...northwest gales to 45 knots. snow showers. waves
subsiding to 9 to 12 feet occasionally to 15 feet.
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves subsiding to 1 to
3 feet.
$$
(8/10)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/24/2025 9:58 AM America/New_York.
Valid through 11/24/2025 4:00 PM America/New_York.
fzus63 kmqt 241458
glfls
expires:202511242100;;425587
open lake forecast for lake superior
national weather service marquette mi
958 am est mon nov 24 2025
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.8 inch trough over minnesota this morning moves over the lake
today. tonight into tuesday, a 29.8 inch low will organize just west
of the great lakes, deepening to 29.6 inches tuesday night over the
upper peninsula and passing over eastern lake superior at 29.3
inches wednesday. this low deepens further to 29.2 inches over
quebec thursday while 30.5 inch high pressure builds over the
northern great plains. this high moves over lake superior friday
into the weekend.
lsz267-242100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
958 am est mon nov 24 2025
...gale watch in effect from wednesday afternoon through late
thursday night...
.rest of today...south winds 20 to 30 knots veering southwest by
late morning, then diminishing to 10 to 20 knots by mid
afternoon. waves 3 to 6 feet occasionally to 8 feet building to
4 to 7 feet occasionally to 9 feet, then subsiding to 1 to
3 feet.
.tonight...west winds 5 to 15 knots veering northeast by
midnight, then veering east late. a slight chance of rain after
midnight. waves subsiding to calm to 2 feet.
.tuesday...east winds 5 to 15 knots increasing to 15 to 25 knots.
rain. waves building to 3 to 5 feet occasionally to 7 feet.
.tuesday night...east winds 15 to 25 knots. rain. waves building
to 4 to 7 feet occasionally to 9 feet.
.wednesday...south winds 20 to 30 knots becoming north gales to
35 knots in the afternoon. rain, possibly mixed with snow. waves
building to 8 to 11 feet occasionally to 14 feet.
.wednesday night...north gales to 35 knots becoming northwest
gales to 45 knots after midnight. snow showers. waves building to
15 to 20 feet occasionally to 25 feet.
.thursday...northwest gales to 45 knots. snow showers. waves
subsiding to 8 to 11 feet occasionally to 14 feet.
.friday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. snow showers likely. waves subsiding to 2 to 4 feet.
$$
(9/10)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/24/2025 9:58 AM America/New_York.
Valid through 11/24/2025 4:00 PM America/New_York.
fzus63 kmqt 241458
glfls
expires:202511242100;;425582
open lake forecast for lake superior
national weather service marquette mi
958 am est mon nov 24 2025
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.8 inch trough over minnesota this morning moves over the lake
today. tonight into tuesday, a 29.8 inch low will organize just west
of the great lakes, deepening to 29.6 inches tuesday night over the
upper peninsula and passing over eastern lake superior at 29.3
inches wednesday. this low deepens further to 29.2 inches over
quebec thursday while 30.5 inch high pressure builds over the
northern great plains. this high moves over lake superior friday
into the weekend.
lsz162-242100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
958 am est mon nov 24 2025 /858 am cst mon nov 24 2025/
...gale watch in effect from tuesday evening through thursday
morning...
.rest of today...west winds 10 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to calm to 2 feet.
.tonight...north winds 5 to 15 knots becoming northeast 10 to
20 knots by midnight, then veering east late. a slight chance of
rain after midnight. waves building to 2 to 4 feet.
.tuesday...northeast winds 15 to 25 knots increasing to 20 to
30 knots. rain. snow in the afternoon. waves building to 6 to
9 feet occasionally to 11 feet.
.tuesday night...northeast gales to 35 knots becoming north gales
to 40 knots after midnight. rain in the evening. snow. a slight
chance of rain after midnight. waves building to 10 to 14 feet
occasionally to 18 feet.
.wednesday...north gales to 40 knots backing northwest in the
afternoon. snow. waves subsiding to 9 to 12 feet occasionally to
15 feet, then building to 10 to 14 feet occasionally to 18 feet.
.wednesday night...northwest gales to 35 knots. a chance of snow
showers. waves subsiding to 5 to 8 feet occasionally to 10 feet.
.thursday...northwest gales to 35 knots diminishing to 15 to
25 knots. waves subsiding to 1 to 3 feet.
.friday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet.
$$
(10/10)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/24/2025 9:58 AM America/New_York.
Valid through 11/24/2025 4:00 PM America/New_York.
fzus63 kmqt 241458
glfls
expires:202511242100;;425583
open lake forecast for lake superior
national weather service marquette mi
958 am est mon nov 24 2025
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.8 inch trough over minnesota this morning moves over the lake
today. tonight into tuesday, a 29.8 inch low will organize just west
of the great lakes, deepening to 29.6 inches tuesday night over the
upper peninsula and passing over eastern lake superior at 29.3
inches wednesday. this low deepens further to 29.2 inches over
quebec thursday while 30.5 inch high pressure builds over the
northern great plains. this high moves over lake superior friday
into the weekend.
lsz263-242100-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
958 am est mon nov 24 2025
...gale watch in effect from tuesday evening through thursday
morning...
.rest of today...southwest winds 10 to 20 knots veering west by
late morning, then diminishing to 5 to 15 knots by mid afternoon.
waves 3 to 5 feet occasionally to 7 feet subsiding to 1 to
3 feet.
.tonight...north winds 5 to 15 knots veering east late. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet.
.tuesday...northeast winds 10 to 20 knots increasing to 20 to
30 knots. a chance of rain in the morning, then rain, possibly
mixed with snow in the afternoon. waves building to 6 to 9 feet
occasionally to 11 feet.
.tuesday night...northeast gales to 40 knots becoming north gales
to 45 knots after midnight. rain in the evening. snow. a slight
chance of rain after midnight. waves building to 12 to 17 feet
occasionally to 21 feet.
.wednesday...north gales to 45 knots. snow. waves subsiding to
10 to 14 feet occasionally to 18 feet.
.wednesday night...northwest gales to 40 knots. snow showers
likely in the evening, then a chance of snow showers after
midnight. waves subsiding to 8 to 11 feet occasionally to
14 feet.
.thursday...northwest gales to 35 knots diminishing to 20 to
30 knots. a chance of snow showers. waves subsiding to 3 to
6 feet occasionally to 8 feet.
.friday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet.
$$
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