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(1/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 7/26/2026 3:32 AM America/New_York.
Valid through 7/26/2026 11:45 AM America/New_York.
fzus63 kdtx 260732
glflh
expires:202607261545;;623915
open lake forecast for lake huron
national weather service detroit/pontiac mi
332 am edt sun jul 26 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...light winds out of the south-southwest between high
pressure and the next low over the plains. thunderstorm chances
increase sunday and monday as the low approaches and as the cold
front moves through the region monday night into tuesday.
lhz361-261545-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
332 am edt sun jul 26 2026
.today...light and variable winds. a chance of showers in the
morning. waves 2 feet or less.
.tonight...light and variable winds becoming south 5 to 10 knots
by midnight...then backing to the southeast early in the morning.
a chance of showers after midnight. waves 2 feet or less.
.monday...southeast winds 5 to 10 knots early in the morning
becoming light and variable...then becoming east 5 to 10 knots
early in the afternoon. a chance of showers and thunderstorms in
the afternoon. waves 2 feet or less.
.monday night...east winds 5 to 10 knots backing to the northwest
by midnight...then becoming north 10 to 15 knots after midnight.
a chance of showers and thunderstorms in the evening...then a
chance of showers after midnight. waves 2 feet or less.
.tuesday...north winds 10 to 15 knots. waves 1 to 3 feet.
.wednesday...north winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then backing
to the northwest . waves 2 feet or less.
.thursday...light and variable winds becoming southwest 5 to
10 knots by midnight. waves 2 feet or less.
$$
(2/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 7/26/2026 3:32 AM America/New_York.
Valid through 7/26/2026 11:45 AM America/New_York.
fzus63 kdtx 260732
glflh
expires:202607261545;;623916
open lake forecast for lake huron
national weather service detroit/pontiac mi
332 am edt sun jul 26 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...light winds out of the south-southwest between high
pressure and the next low over the plains. thunderstorm chances
increase sunday and monday as the low approaches and as the cold
front moves through the region monday night into tuesday.
lhz362-363-261545-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
332 am edt sun jul 26 2026
.today...light and variable winds. waves 2 feet or less.
.tonight...light and variable winds becoming east 5 to 10 knots.
waves 2 feet or less.
.monday...east winds 5 to 10 knots veering to the south in the
late morning and early afternoon...then backing to the southeast
early in the afternoon. a chance of showers and thunderstorms in
the afternoon. waves 2 feet or less.
.monday night...east winds 5 to 10 knots. a chance of showers and
thunderstorms in the evening...then a chance of showers after
midnight. waves 2 feet or less.
.tuesday...north winds 10 to 15 knots becoming northwest 15 to
20 knots late in the afternoon. waves 3 to 5 feet.
.wednesday...north winds 10 to 15 knots becoming northwest 5 to
10 knots by midnight. waves 3 to 5 feet subsiding to 1 to 3 feet
by midnight.
.thursday...north winds 5 to 10 knots early in the morning
becoming light and variable...then becoming east 5 to 10 knots by
midnight. waves 2 feet or less.
$$
(3/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 7/26/2026 3:32 AM America/New_York.
Valid through 7/26/2026 11:45 AM America/New_York.
fzus63 kdtx 260732
glflh
expires:202607261545;;623917
open lake forecast for lake huron
national weather service detroit/pontiac mi
332 am edt sun jul 26 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...light winds out of the south-southwest between high
pressure and the next low over the plains. thunderstorm chances
increase sunday and monday as the low approaches and as the cold
front moves through the region monday night into tuesday.
lhz462>464-261545-
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-
332 am edt sun jul 26 2026
.today...southwest winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less.
.tonight...light and variable winds becoming south 5 to 10 knots
after midnight. waves 2 feet or less.
.monday...north winds 5 to 10 knots veering to the south in the
late morning and afternoon. a chance of showers and thunderstorms
in the afternoon. waves 2 feet or less.
.monday night...southeast winds 5 to 10 knots backing to the east
by midnight...then veering to the southwest after midnight.
showers and a chance of thunderstorms. waves 2 feet or less.
.tuesday...north winds 10 to 15 knots increasing to 15 to
20 knots with gusts to around 30 knots. a chance of showers in
the morning. waves 4 to 6 feet building to 5 to 7 feet late in
the afternoon. waves occasionally around 10 feet.
.wednesday...north winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots by midnight. waves 4 to
6 feet.
.thursday...north winds 5 to 10 knots becoming light and
variable. waves 1 to 3 feet. waves occasionally around 8 feet.
$$
(4/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 7/26/2026 3:53 AM US/Central.
Valid through 7/26/2026 10:15 AM US/Central.
fzus63 kmkx 260853
glflm
expires:202607261515;;626991
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
353 am cdt sun jul 26 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...
low pressure around 29.8 inches will remain over wisconsin and
lake michigan through most of monday which will result in
increasing thunderstorm chances with severe storms possible. very
warm, moist and unstable air flowing over the relatively cool
waters may cause patchy dense fog over the lake through monday as
well.
northerly winds will develop monday night through wednesday as
high pressure around 29.9 inches builds over the upper great lakes
and the front pushes southward. a few gale force gusts are
possible tuesday afternoon. look for southerly winds and more
unsettled weather to resume thursday into next weekend.
lmz080-669-671-673-675-777-779-870-872-874-876-878-261515-
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-
353 am cdt sun jul 26 2026
sheboygan wi to pentwater mi south...
.today...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 2 ft.
.tonight...south winds 10 to 15 kt. slight chance of showers and
thunderstorms in the evening, then chance of showers and slight
chance of thunderstorms overnight. waves 1 to 3 ft.
.monday...south winds 10 to 15 kt increasing to 10 to 20 kt.
showers likely in the morning, then chance of showers in the
afternoon. waves 1 to 3 ft.
.monday night...west winds 10 to 20 kt veering to north 15 to
25 kt. chance of showers and thunderstorms in the evening, then
chance of showers overnight. waves 2 to 4 ft building to 4 to
7 ft occasionally to 9 ft.
.tuesday...north winds to 30 kt increasing to gales to 35 kt.
waves 6 to 9 ft occasionally to 12 ft building to 8 to 11 ft
occasionally to 14 ft.
.tuesday night...north gales to 35 kt diminishing to 10 to 20 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft.
.wednesday...north winds 10 to 20 kt increasing to 30 kt. waves
3 to 5 ft.
.thursday...east winds 10 to 15 kt becoming northeast 10 to
20 kt. waves 1 to 3 ft.
$$
(5/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 7/26/2026 3:53 AM US/Central.
Valid through 7/26/2026 10:15 AM US/Central.
fzus63 kmkx 260853
glflm
expires:202607261515;;626990
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
353 am cdt sun jul 26 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...
low pressure around 29.8 inches will remain over wisconsin and
lake michigan through most of monday which will result in
increasing thunderstorm chances with severe storms possible. very
warm, moist and unstable air flowing over the relatively cool
waters may cause patchy dense fog over the lake through monday as
well.
northerly winds will develop monday night through wednesday as
high pressure around 29.9 inches builds over the upper great lakes
and the front pushes southward. a few gale force gusts are
possible tuesday afternoon. look for southerly winds and more
unsettled weather to resume thursday into next weekend.
lmz261-362-364-366-563-565-567-868-261515-
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-
353 am cdt sun jul 26 2026
sheboygan wi to pentwater mi north...
.today...west winds 5 to 10 kt becoming southwest late this
morning, then increasing to 10 to 15 kt early this afternoon
becoming south 10 to 20 kt late. patchy fog this morning. waves
1 to 3 ft.
.tonight...south winds 10 to 20 kt becoming southwest 10 to
15 kt. chance of showers and thunderstorms in the evening, then
chance of showers and slight chance of thunderstorms overnight.
waves 1 to 3 ft.
.monday...southwest winds 10 to 15 kt backing to southeast 10 to
20 kt. chance of showers and thunderstorms in the afternoon.
waves 1 to 3 ft.
.monday night...north winds 10 to 20 kt increasing to 15 to
25 kt. chance of showers and thunderstorms in the evening, then
chance of showers overnight. waves 2 to 4 ft building to 4 to
6 ft occasionally to 8 ft.
.tuesday...north winds to 30 kt increasing to gales to 35 kt.
waves 4 to 7 ft occasionally to 9 ft.
.tuesday night...north winds to 30 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft.
.wednesday...north winds 10 to 20 kt increasing to 30 kt. waves
1 to 3 ft.
.thursday...southeast winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft.
$$
(6/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/26/2026 4:07 AM America/New_York.
Valid through 7/26/2026 4:00 PM America/New_York.
fzus63 kmqt 260807 cca
glfls
expires:202607262000;;625117
open lake forecast for lake superior...corrected
national weather service marquette mi
407 am edt sun jul 26 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...
troughing around 29.8 inches over lake superior deepens to 29.7
inches by tonight. a 29.6 to 29.7 inch clipper low then moves into
the upper great lakes or upper midwest by monday before departing
east towards the mid-atlantic on tuesday. behind the clipper, weak
ridging of 29.9 to 30.0 inches returns to lake superior tuesday into
thursday.
lsz264-262000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
407 am edt sun jul 26 2026
...dense fog advisory in effect until 11 am edt this morning...
.early this morning...southwest winds less than 10 knots. areas
of dense fog. waves calm to 2 feet.
.today...south winds less than 10 knots becoming southeast 5 to
15 knots in the afternoon. areas of dense fog through early
afternoon. patchy fog by mid afternoon. a slight chance of
showers and thunderstorms by mid afternoon. some thunderstorms
may be severe. waves calm to 2 feet.
.tonight...east winds 5 to 15 knots becoming northeast less than
10 knots after midnight, then increasing to 5 to 15 knots late.
patchy smoke through midnight. patchy fog. a slight chance of
showers and thunderstorms. some thunderstorms may be severe.
waves calm to 2 feet.
.monday...northeast winds 5 to 15 knots backing north late. areas
of dense fog through early afternoon. a slight chance of showers
and thunderstorms. some thunderstorms may be severe through early
afternoon. waves calm to 2 feet.
.monday night...north winds 5 to 15 knots. waves calm to 2 feet.
.tuesday...northeast winds 5 to 15 knots diminishing to less than
10 knots by mid afternoon. waves calm to 2 feet.
.tuesday night...northwest winds less than 10 knots backing
southeast after midnight. waves calm to 2 feet.
.wednesday...southeast winds less than 10 knots increasing to
5 to 15 knots. waves calm to 2 feet.
.thursday...south winds less than 10 knots increasing to 5 to
15 knots. a chance of showers. waves calm to 2 feet.
$$
(7/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/26/2026 4:07 AM America/New_York.
Valid through 7/26/2026 4:00 PM America/New_York.
fzus63 kmqt 260807 cca
glfls
expires:202607262000;;625118
open lake forecast for lake superior...corrected
national weather service marquette mi
407 am edt sun jul 26 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...
troughing around 29.8 inches over lake superior deepens to 29.7
inches by tonight. a 29.6 to 29.7 inch clipper low then moves into
the upper great lakes or upper midwest by monday before departing
east towards the mid-atlantic on tuesday. behind the clipper, weak
ridging of 29.9 to 30.0 inches returns to lake superior tuesday into
thursday.
lsz265-262000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
407 am edt sun jul 26 2026
.early this morning...southwest winds 5 to 15 knots. patchy fog.
waves calm to 2 feet.
.today...southeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then backing east late. patchy fog.
waves calm to 2 feet.
.tonight...east winds 10 to 20 knots becoming northeast 5 to
15 knots after midnight, then backing north late. patchy fog. a
slight chance of showers and thunderstorms. some thunderstorms
may be severe. waves calm to 2 feet.
.monday...northeast winds 10 to 20 knots backing north late.
areas of dense fog through early afternoon. a slight chance of
showers and thunderstorms. some thunderstorms may be severe.
waves calm to 2 feet.
.monday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet.
.tuesday...north winds 5 to 15 knots. waves calm to 2 feet.
.tuesday night...northwest winds 5 to 15 knots backing southeast
after midnight. waves calm to 2 feet.
.wednesday...southeast winds 5 to 15 knots veering south. waves
calm to 2 feet.
.thursday...southeast winds 5 to 15 knots becoming southwest
10 to 20 knots. a chance of showers. waves calm to 2 feet.
$$
(8/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/26/2026 4:07 AM America/New_York.
Valid through 7/26/2026 4:00 PM America/New_York.
fzus63 kmqt 260807 cca
glfls
expires:202607262000;;625119
open lake forecast for lake superior...corrected
national weather service marquette mi
407 am edt sun jul 26 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...
troughing around 29.8 inches over lake superior deepens to 29.7
inches by tonight. a 29.6 to 29.7 inch clipper low then moves into
the upper great lakes or upper midwest by monday before departing
east towards the mid-atlantic on tuesday. behind the clipper, weak
ridging of 29.9 to 30.0 inches returns to lake superior tuesday into
thursday.
lsz266-262000-
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-
407 am edt sun jul 26 2026
...dense fog advisory in effect until 11 am edt this morning...
.early this morning...southwest winds 5 to 15 knots. areas of
dense fog. waves calm to 2 feet.
.today...south winds 5 to 15 knots backing east late. areas of
dense fog through early afternoon. patchy fog by mid afternoon. a
slight chance of showers and thunderstorms by mid afternoon. some
thunderstorms may be severe. waves calm to 2 feet.
.tonight...southeast winds 5 to 15 knots backing northeast late.
patchy fog. a slight chance of showers and thunderstorms. some
thunderstorms may be severe. waves calm to 2 feet.
.monday...north winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. areas of dense fog through early afternoon. a
slight chance of showers and thunderstorms. some thunderstorms
may be severe through early afternoon. waves calm to 2 feet.
.monday night...north winds 10 to 20 knots. a slight chance of
showers through midnight. waves building to 2 to 4 feet.
.tuesday...north winds 10 to 20 knots becoming northwest 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet.
.tuesday night...north winds 5 to 15 knots. waves calm to 2 feet.
.wednesday...southeast winds 5 to 15 knots veering south. waves
calm to 2 feet.
.thursday...south winds 5 to 15 knots. waves calm to 2 feet.
$$
(9/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/26/2026 4:07 AM America/New_York.
Valid through 7/26/2026 4:00 PM America/New_York.
fzus63 kmqt 260807 cca
glfls
expires:202607262000;;625120
open lake forecast for lake superior...corrected
national weather service marquette mi
407 am edt sun jul 26 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...
troughing around 29.8 inches over lake superior deepens to 29.7
inches by tonight. a 29.6 to 29.7 inch clipper low then moves into
the upper great lakes or upper midwest by monday before departing
east towards the mid-atlantic on tuesday. behind the clipper, weak
ridging of 29.9 to 30.0 inches returns to lake superior tuesday into
thursday.
lsz267-262000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
407 am edt sun jul 26 2026
...dense fog advisory in effect until 11 am edt this morning...
.early this morning...south winds less than 10 knots. areas of
dense fog. waves calm to 2 feet.
.today...south winds less than 10 knots becoming southeast 5 to
15 knots in the afternoon, then backing east late. areas of dense
fog through early afternoon, then patchy fog by mid afternoon.
waves calm to 2 feet.
.tonight...east winds 5 to 15 knots becoming southeast 10 to
20 knots after midnight, then diminishing to 5 to 15 knots late.
patchy fog. a chance of showers and thunderstorms. waves calm to
2 feet.
.monday...north winds 5 to 15 knots becoming northwest 10 to
20 knots late. areas of dense fog through early afternoon. a
slight chance of showers and thunderstorms. some thunderstorms
may be severe through early afternoon. waves calm to 2 feet.
.monday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a slight chance of showers through
midnight. waves building to 2 to 4 feet.
.tuesday...north winds 10 to 20 knots backing northwest by mid
afternoon. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet.
.tuesday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet.
.wednesday...northwest winds 5 to 15 knots backing south. waves
calm to 2 feet.
.thursday...southeast winds 5 to 15 knots veering south. waves
calm to 2 feet.
$$
(10/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/26/2026 4:07 AM America/New_York.
Valid through 7/26/2026 4:00 PM America/New_York.
fzus63 kmqt 260807 cca
glfls
expires:202607262000;;625115
open lake forecast for lake superior...corrected
national weather service marquette mi
407 am edt sun jul 26 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...
troughing around 29.8 inches over lake superior deepens to 29.7
inches by tonight. a 29.6 to 29.7 inch clipper low then moves into
the upper great lakes or upper midwest by monday before departing
east towards the mid-atlantic on tuesday. behind the clipper, weak
ridging of 29.9 to 30.0 inches returns to lake superior tuesday into
thursday.
lsz162-262000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
407 am edt sun jul 26 2026 /307 am cdt sun jul 26 2026/
...dense fog advisory in effect until 11 am edt /10 am cdt/ this
morning...
.early this morning...north winds less than 10 knots. patchy dense
fog. waves calm to 2 feet.
.today...southeast winds less than 10 knots becoming northeast
5 to 15 knots in the afternoon, then veering east late. patchy dense
fog early. a slight chance of showers and thunderstorms by mid
afternoon. some thunderstorms may be severe. waves calm to 2 feet.
.tonight...northeast winds 5 to 15 knots veering east late.
patchy fog and smoke. a chance of showers and a slight chance of
thunderstorms. some thunderstorms may be severe. waves calm to
2 feet.
.monday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. areas of dense fog through early afternoon. a slight chance
of showers and thunderstorms. some thunderstorms may be severe.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet.
.monday night...north winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet.
.tuesday...northeast winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet.
.tuesday night...northeast winds 5 to 15 knots diminishing to
less than 10 knots after midnight. waves calm to 2 feet.
.wednesday...northeast winds 5 to 15 knots. waves calm to 2 feet.
.thursday...northeast winds 5 to 15 knots backing north. a chance
of showers. waves calm to 2 feet.
$$
(11/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 7/26/2026 4:07 AM America/New_York.
Valid through 7/26/2026 4:00 PM America/New_York.
fzus63 kmqt 260807 cca
glfls
expires:202607262000;;625116
open lake forecast for lake superior...corrected
national weather service marquette mi
407 am edt sun jul 26 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...
troughing around 29.8 inches over lake superior deepens to 29.7
inches by tonight. a 29.6 to 29.7 inch clipper low then moves into
the upper great lakes or upper midwest by monday before departing
east towards the mid-atlantic on tuesday. behind the clipper, weak
ridging of 29.9 to 30.0 inches returns to lake superior tuesday into
thursday.
lsz263-262000-
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-
407 am edt sun jul 26 2026
...dense fog advisory in effect until 11 am edt this morning...
.early this morning...southwest winds less than 10 knots. patchy
dense fog. waves calm to 2 feet.
.today...south winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon, then veering east late. patchy dense fog
early. patchy smoke by mid afternoon. a slight chance of showers and
thunderstorms by mid afternoon. some thunderstorms may be severe.
waves calm to 2 feet.
.tonight...east winds 5 to 15 knots backing northeast after
midnight. patchy smoke through midnight. patchy fog. a slight
chance of showers and thunderstorms. some thunderstorms may be
severe. waves calm to 2 feet.
.monday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. areas of dense fog through early
afternoon. a slight chance of showers and thunderstorms. some
thunderstorms may be severe. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.monday night...north winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet.
.tuesday...northeast winds less than 10 knots. waves calm to
2 feet.
.tuesday night...east winds less than 10 knots veering southeast
after midnight. waves calm to 2 feet.
.wednesday...east winds less than 10 knots becoming southeast
5 to 15 knots. waves calm to 2 feet.
.thursday...south winds 5 to 15 knots veering west. a chance of
showers. waves calm to 2 feet.
$$
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