(1/13)
Latest Great Lakes Marine Forecast by KDTX
Issued 7/5/2026 3:34 AM America/New_York.
Valid through 7/5/2026 11:45 AM America/New_York.
fzus63 kdtx 050734
glflh
expires:202607051545;;443343
open lake forecast for lake huron
national weather service detroit/pontiac mi
334 am edt sun jul 5 2026
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...northeast flow holds today along with additional
chances for some shower and thunderstorms. high pressure, 30.10
inches, will build in monday and tuesday, bringing dry weather
and light winds.
lhz361-051545-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
334 am edt sun jul 5 2026
.today...northeast winds 10 to 15 knots becoming light and
variable. waves 2 feet or less.
.tonight...light and variable winds becoming north 5 to 10 knots
early in the morning. waves 2 feet or less.
.monday...northeast winds 5 to 10 knots becoming light and
variable. waves 2 feet or less.
.monday night...light and variable winds. waves 2 feet or less.
.tuesday...light and variable winds. waves 2 feet or less.
.wednesday...light and variable winds becoming south 5 to
10 knots . a chance of showers early in the morning...then
showers likely . waves 2 feet or less.
.thursday...north winds 5 to 10 knots backing to the west early
in the evening...then becoming northwest 10 to 15 knots by
midnight. a chance of showers until afternoon. waves 2 feet or
less.
$$
(2/13)
Latest Great Lakes Marine Forecast by KDTX
Issued 7/5/2026 3:34 AM America/New_York.
Valid through 7/5/2026 11:45 AM America/New_York.
fzus63 kdtx 050734
glflh
expires:202607051545;;443344
open lake forecast for lake huron
national weather service detroit/pontiac mi
334 am edt sun jul 5 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...northeast flow holds today along with additional
chances for some shower and thunderstorms. high pressure, 30.10
inches, will build in monday and tuesday, bringing dry weather
and light winds.
lhz362-363-051545-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
334 am edt sun jul 5 2026
.today...northeast winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet late in the afternoon.
.tonight...north winds 5 to 10 knots. waves 2 to 4 feet subsiding
to 1 to 3 feet after midnight.
.monday...northeast winds 5 to 10 knots. waves 1 to 3 feet.
.monday night...north winds 5 to 10 knots becoming light and
variable. waves 2 feet or less.
.tuesday...light and variable winds. waves 2 feet or less.
.wednesday...light and variable winds becoming southeast 5 to
10 knots. a chance of showers . waves 2 feet or less.
.thursday...south winds 5 to 10 knots veering to the west by
midnight. a chance of showers. waves 1 to 3 feet.
$$
(3/13)
Latest Great Lakes Marine Forecast by KDTX
Issued 7/5/2026 3:34 AM America/New_York.
Valid through 7/5/2026 11:45 AM America/New_York.
fzus63 kdtx 050734
glflh
expires:202607051545;;443345
open lake forecast for lake huron
national weather service detroit/pontiac mi
334 am edt sun jul 5 2026
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...northeast flow holds today along with additional
chances for some shower and thunderstorms. high pressure, 30.10
inches, will build in monday and tuesday, bringing dry weather
and light winds.
lhz462>464-051545-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
334 am edt sun jul 5 2026
.today...northeast winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. waves 1 to 3 feet.
.tonight...northeast winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight.
.monday...northeast winds 5 to 10 knots becoming north 10 to
15 knots early in the afternoon. waves 1 to 3 feet.
.monday night...north winds 10 to 15 knots becoming northeast
5 to 10 knots in the late evening and overnight. waves 1 to
3 feet.
.tuesday...light and variable winds becoming north 5 to 10 knots
late in the morning...then becoming light and variable late in
the afternoon. waves 2 feet or less.
.wednesday...light and variable winds becoming south 5 to
10 knots . a chance of showers by midnight. waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots veering to the
northwest by midnight. a chance of showers. a chance of
thunderstorms early in the evening. waves 2 feet or less.
$$
(4/13)
Latest Great Lakes Marine Forecast by KMKX
Issued 7/5/2026 6:08 AM US/Central.
Valid through 7/5/2026 10:15 AM US/Central.
fzus63 kmkx 051108 aaa
glflm
expires:202607051515;;451757
open lake forecast for lake michigan...updated
national weather service milwaukee/sullivan wi
608 am cdt sun jul 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...
high pressure around 30.2 inches northeast of the region will
remain in place through monday. weak low pressure around 29.9
inches will slowly move east across indiana into ohio during this
time. scattered showers and a few thunderstorms are expected over
mainly the far southern portions of lake michigan today into early
this evening. increasing north to northeast winds are expected as
well today, lingering tonight into monday.
high pressure around 30.0 inches will then shift southeast across
the region monday night and tuesday, with lighter winds.
southwest winds should increase wednesday, ahead of a cold front
moving toward the region.
lmz080-669-671-673-675-777-779-870-872-874-876-878-051515-
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-
608 am cdt sun jul 5 2026
sheboygan wi to pentwater mi south...
.today...northeast winds 10 to 15 kt becoming north 15 to 25 kt.
patchy fog this morning. chance of showers and slight chance of
thunderstorms this morning, then slight chance of showers and
thunderstorms this afternoon. waves 2 to 4 ft.
.tonight...north winds 15 to 25 kt becoming northeast 10 to
20 kt, then diminishing to 10 to 15 kt late. waves 3 to 5 ft.
.monday...northeast winds 10 to 15 kt becoming north 10 to 20 kt
early in the afternoon, then increasing to 15 to 25 kt late.
waves 2 to 4 ft.
.monday night...north winds 10 to 20 kt diminishing to 5 to 10 kt
overnight. waves 2 to 4 ft.
.tuesday...north winds 5 to 10 kt becoming northwest. waves 1 to
2 ft.
.tuesday night...southwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 ft or less.
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 3 ft.
.thursday...west winds 10 to 20 kt becoming northwest. chance of
showers. waves 2 to 4 ft.
$$
(5/13)
Latest Great Lakes Marine Forecast by KMKX
Issued 7/5/2026 6:08 AM US/Central.
Valid through 7/5/2026 10:15 AM US/Central.
fzus63 kmkx 051108 aaa
glflm
expires:202607051515;;451756
open lake forecast for lake michigan...updated
national weather service milwaukee/sullivan wi
608 am cdt sun jul 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...
high pressure around 30.2 inches northeast of the region will
remain in place through monday. weak low pressure around 29.9
inches will slowly move east across indiana into ohio during this
time. scattered showers and a few thunderstorms are expected over
mainly the far southern portions of lake michigan today into early
this evening. increasing north to northeast winds are expected as
well today, lingering tonight into monday.
high pressure around 30.0 inches will then shift southeast across
the region monday night and tuesday, with lighter winds.
southwest winds should increase wednesday, ahead of a cold front
moving toward the region.
lmz261-362-364-366-563-565-567-868-051515-
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-
608 am cdt sun jul 5 2026
sheboygan wi to pentwater mi north...
.today...northeast winds 10 to 15 kt increasing to 15 to 25 kt.
waves 2 to 4 ft.
.tonight...northeast winds 15 to 25 kt diminishing to 5 to 10 kt.
waves 2 to 4 ft subsiding to 1 to 3 ft.
.monday...northeast winds 5 to 10 kt becoming north 15 to 25 kt.
waves 2 to 4 ft.
.monday night...northeast winds 10 to 20 kt becoming southeast
5 to 10 kt overnight. waves 2 to 4 ft subsiding to 1 to 2 ft.
.tuesday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.
.tuesday night...southwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 ft or less.
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. chance of showers. waves 1 to 2 ft building to 1 to 3 ft.
.thursday...north winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers. waves 2 to 4 ft.
$$
(6/13)
Latest Great Lakes Marine Forecast by KMKX
Issued 7/5/2026 3:07 AM US/Central.
Valid through 7/5/2026 10:30 AM US/Central.
fzus63 kmkx 050807
glflm
expires:202607051530;;444673
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
307 am cdt sun jul 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...
high pressure around 30.2 inches northeast of the region will
remain in place through monday. weak low pressure around 29.9
inches will slowly move east across indiana into ohio during this
time. scattered showers and a few thunderstorms are expected over
mainly the far southern portions of lake michigan today into early
this evening. increasing north to northeast winds are expected as
well today, lingering tonight into monday.
areas of dense fog should linger into the middle morning hours
across central and southern portions of the lake, where a dense
fog advisory is in effect. there is an expectation that the fog
will diminish by the middle morning hours, with increasing north
to northeast winds.
high pressure around 30.0 inches will then shift southeast across
the region monday night and tuesday, with lighter winds.
southwest winds should increase wednesday, ahead of a cold front
moving toward the region.
lmz261-362-364-563-051530-
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 rock island passage to sturgeon bay wi-
307 am cdt sun jul 5 2026
sturgeon bay wi to point betsie mi north...
.today...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.
.tonight...northeast winds 10 to 20 kt diminishing to 5 to 10 kt.
waves 1 to 2 ft.
.monday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft.
.monday night...northeast winds 10 to 15 kt veering to south less
than 10 kt overnight. waves 1 ft or less.
.tuesday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.
.tuesday night...southwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 ft or less.
.wednesday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. chance of showers. waves 1 to 2 ft.
.thursday...north winds 10 to 20 kt. waves 1 to 3 ft.
$$
(7/13)
Latest Great Lakes Marine Forecast by KMKX
Issued 7/5/2026 3:07 AM US/Central.
Valid through 7/5/2026 10:30 AM US/Central.
fzus63 kmkx 050807
glflm
expires:202607051530;;444674
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
307 am cdt sun jul 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...
high pressure around 30.2 inches northeast of the region will
remain in place through monday. weak low pressure around 29.9
inches will slowly move east across indiana into ohio during this
time. scattered showers and a few thunderstorms are expected over
mainly the far southern portions of lake michigan today into early
this evening. increasing north to northeast winds are expected as
well today, lingering tonight into monday.
areas of dense fog should linger into the middle morning hours
across central and southern portions of the lake, where a dense
fog advisory is in effect. there is an expectation that the fog
will diminish by the middle morning hours, with increasing north
to northeast winds.
high pressure around 30.0 inches will then shift southeast across
the region monday night and tuesday, with lighter winds.
southwest winds should increase wednesday, ahead of a cold front
moving toward the region.
lmz366-565-567-868-051530-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
307 am cdt sun jul 5 2026
sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...
...dense fog advisory in effect until 10 am cdt this morning...
.today...northeast winds 10 to 15 kt becoming north 15 to 25 kt.
areas of dense fog this morning. waves 2 to 4 ft.
.tonight...northeast winds 15 to 25 kt diminishing to 5 to 10 kt.
waves 2 to 4 ft subsiding to 1 to 3 ft.
.monday...northeast winds 5 to 10 kt becoming north 15 to 25 kt.
waves 2 to 4 ft.
.monday night...north winds 10 to 20 kt diminishing to 5 to 10 kt
overnight. waves 2 to 4 ft subsiding to 1 to 2 ft.
.tuesday...west winds 5 to 10 kt becoming southwest. waves 1 ft
or less.
.tuesday night...southwest winds 5 to 10 kt. waves nearly calm.
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. chance of showers. waves 1 to 2 ft building to 1 to 3 ft.
.thursday...northwest winds 10 to 20 kt becoming north 15 to
25 kt. chance of showers. waves 2 to 4 ft.
$$
(8/13)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/5/2026 4:01 AM America/New_York.
Valid through 7/5/2026 4:00 PM America/New_York.
fzus63 kmqt 050801
glfls
expires:202607052000;;444034
open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jul 5 2026
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 30.2 inch high over the hudson bay will push southeast into quebec
through monday morning, extending a 30.1 inch ridge over lake
superior. meanwhile, low pressure will move from northern
saskatchewan to the hudson bay, deepening to 29.5 inches as it
reaches the hudson bay on tuesday morning. as the low departs the
hudson bay, moving east, it will extend a 29.8 inch trough over lake
superior on wednesday. thereafter high pressure at 29.9 inches
builds over the upper great lakes for thursday and friday.
lsz264-052000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt sun jul 5 2026
.early this morning...east winds 5 to 15 knots. waves calm to
2 feet.
.today...east winds 5 to 15 knots. waves calm to 2 feet.
.tonight...east winds 5 to 15 knots becoming southeast less than
10 knots after midnight. waves calm to 2 feet.
.monday...southeast winds less than 10 knots increasing to 5 to
15 knots late. waves calm to 2 feet.
.monday night...south winds 5 to 15 knots veering southwest after
midnight. a slight chance of showers after midnight. waves calm
to 2 feet.
.tuesday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet.
.tuesday night...southwest winds 5 to 15 knots becoming east less
than 10 knots after midnight. waves calm to 2 feet.
.wednesday...northeast winds less than 10 knots becoming north
5 to 15 knots. a chance of showers. waves calm to 2 feet.
.thursday...north winds 5 to 15 knots. waves calm to 2 feet.
$$
(9/13)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/5/2026 4:01 AM America/New_York.
Valid through 7/5/2026 4:00 PM America/New_York.
fzus63 kmqt 050801
glfls
expires:202607052000;;444035
open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jul 5 2026
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 30.2 inch high over the hudson bay will push southeast into quebec
through monday morning, extending a 30.1 inch ridge over lake
superior. meanwhile, low pressure will move from northern
saskatchewan to the hudson bay, deepening to 29.5 inches as it
reaches the hudson bay on tuesday morning. as the low departs the
hudson bay, moving east, it will extend a 29.8 inch trough over lake
superior on wednesday. thereafter high pressure at 29.9 inches
builds over the upper great lakes for thursday and friday.
lsz265-052000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt sun jul 5 2026
.early this morning...northeast winds 5 to 15 knots. waves calm
to 2 feet.
.today...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. waves calm to 2 feet.
.tonight...east winds 5 to 15 knots veering southeast after
midnight. waves calm to 2 feet.
.monday...southeast winds 5 to 15 knots backing east in the
afternoon, then increasing to 10 to 20 knots late. waves calm to
2 feet.
.monday night...southeast winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet.
.tuesday...southwest winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet.
.tuesday night...southeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet.
.wednesday...east winds 5 to 15 knots. showers likely. a chance
of thunderstorms. a chance of showers. waves calm to 2 feet.
.thursday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet.
$$
(10/13)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/5/2026 4:01 AM America/New_York.
Valid through 7/5/2026 4:00 PM America/New_York.
fzus63 kmqt 050801
glfls
expires:202607052000;;444032
open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jul 5 2026
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 30.2 inch high over the hudson bay will push southeast into quebec
through monday morning, extending a 30.1 inch ridge over lake
superior. meanwhile, low pressure will move from northern
saskatchewan to the hudson bay, deepening to 29.5 inches as it
reaches the hudson bay on tuesday morning. as the low departs the
hudson bay, moving east, it will extend a 29.8 inch trough over lake
superior on wednesday. thereafter high pressure at 29.9 inches
builds over the upper great lakes for thursday and friday.
lsz162-052000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt sun jul 5 2026 /300 am cdt sun jul 5 2026/
.early this morning...northeast winds 5 to 15 knots. waves calm
to 2 feet.
.today...northeast winds 5 to 15 knots. waves calm to 2 feet.
.tonight...northeast winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet.
.monday...east winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon, then backing north late. waves calm to
2 feet.
.monday night...north winds less than 10 knots becoming southwest
5 to 15 knots after midnight. a slight chance of showers and
thunderstorms. waves calm to 2 feet.
.tuesday...southwest winds 5 to 15 knots. waves calm to 2 feet.
.tuesday night...southwest winds 5 to 15 knots veering north
after midnight. a chance of showers and thunderstorms. waves calm
to 2 feet.
.wednesday...northeast winds 5 to 15 knots backing north. showers
likely. a chance of thunderstorms. a chance of showers. waves
calm to 2 feet.
.thursday...northeast winds 5 to 15 knots backing north. waves
calm to 2 feet.
$$
(11/13)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/5/2026 4:01 AM America/New_York.
Valid through 7/5/2026 4:00 PM America/New_York.
fzus63 kmqt 050801
glfls
expires:202607052000;;444037
open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jul 5 2026
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 30.2 inch high over the hudson bay will push southeast into quebec
through monday morning, extending a 30.1 inch ridge over lake
superior. meanwhile, low pressure will move from northern
saskatchewan to the hudson bay, deepening to 29.5 inches as it
reaches the hudson bay on tuesday morning. as the low departs the
hudson bay, moving east, it will extend a 29.8 inch trough over lake
superior on wednesday. thereafter high pressure at 29.9 inches
builds over the upper great lakes for thursday and friday.
lsz267-052000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt sun jul 5 2026
.early this morning...northeast winds 10 to 20 knots. waves calm
to 2 feet.
.today...northeast winds 5 to 15 knots backing north late. waves
calm to 2 feet.
.tonight...north winds 5 to 15 knots backing west late. waves
calm to 2 feet.
.monday...northwest winds less than 10 knots veering north in the
afternoon, then becoming east 5 to 15 knots late. waves calm to
2 feet.
.monday night...southeast winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet.
.tuesday...south winds 5 to 15 knots backing north by mid
afternoon. waves calm to 2 feet.
.tuesday night...southeast winds less than 10 knots becoming east
5 to 15 knots after midnight. waves calm to 2 feet.
.wednesday...northeast winds 5 to 15 knots backing north. a
chance of showers. waves calm to 2 feet.
.thursday...northwest winds 10 to 20 knots becoming north 5 to
15 knots. waves calm to 2 feet.
$$
(12/13)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/5/2026 4:01 AM America/New_York.
Valid through 7/5/2026 4:00 PM America/New_York.
fzus63 kmqt 050801
glfls
expires:202607052000;;444036
open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jul 5 2026
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 30.2 inch high over the hudson bay will push southeast into quebec
through monday morning, extending a 30.1 inch ridge over lake
superior. meanwhile, low pressure will move from northern
saskatchewan to the hudson bay, deepening to 29.5 inches as it
reaches the hudson bay on tuesday morning. as the low departs the
hudson bay, moving east, it will extend a 29.8 inch trough over lake
superior on wednesday. thereafter high pressure at 29.9 inches
builds over the upper great lakes for thursday and friday.
lsz266-052000-
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-
400 am edt sun jul 5 2026
.early this morning...east winds 5 to 15 knots. waves calm to
2 feet.
.today...east winds 5 to 15 knots backing northeast in the
afternoon. waves calm to 2 feet.
.tonight...north winds 5 to 15 knots veering northeast after
midnight, then becoming northwest less than 10 knots late. waves
calm to 2 feet.
.monday...east winds less than 10 knots increasing to 5 to
15 knots in the afternoon, then veering southeast late. waves
calm to 2 feet.
.monday night...southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves calm to 2 feet.
.tuesday...southwest winds 5 to 15 knots diminishing to less than
10 knots by mid afternoon. waves calm to 2 feet.
.tuesday night...southeast winds less than 10 knots increasing to
5 to 15 knots after midnight. a chance of showers. waves calm to
2 feet.
.wednesday...northeast winds 5 to 15 knots. a chance of showers
and thunderstorms. waves calm to 2 feet.
.thursday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet.
$$
(13/13)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/5/2026 4:01 AM America/New_York.
Valid through 7/5/2026 4:00 PM America/New_York.
fzus63 kmqt 050801
glfls
expires:202607052000;;444033
open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jul 5 2026
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 30.2 inch high over the hudson bay will push southeast into quebec
through monday morning, extending a 30.1 inch ridge over lake
superior. meanwhile, low pressure will move from northern
saskatchewan to the hudson bay, deepening to 29.5 inches as it
reaches the hudson bay on tuesday morning. as the low departs the
hudson bay, moving east, it will extend a 29.8 inch trough over lake
superior on wednesday. thereafter high pressure at 29.9 inches
builds over the upper great lakes for thursday and friday.
lsz263-052000-
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-
400 am edt sun jul 5 2026
.early this morning...northeast winds 5 to 15 knots. waves calm
to 2 feet.
.today...northeast winds 5 to 15 knots. waves calm to 2 feet.
.tonight...east winds 5 to 15 knots diminishing to less than
10 knots late. waves calm to 2 feet.
.monday...east winds less than 10 knots. waves calm to 2 feet.
.monday night...east winds 5 to 15 knots veering southwest after
midnight. a slight chance of showers and thunderstorms after
midnight. waves calm to 2 feet.
.tuesday...southwest winds 5 to 15 knots. waves calm to 2 feet.
.tuesday night...southwest winds 5 to 15 knots becoming north
less than 10 knots after midnight. a chance of showers and
thunderstorms. waves calm to 2 feet.
.wednesday...northeast winds 5 to 15 knots backing north. showers
likely. a chance of thunderstorms. a chance of showers. waves
calm to 2 feet.
.thursday...north winds 5 to 15 knots. waves calm to 2 feet.
$$
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