(1/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/25/2026 3:41 PM America/New_York.
Valid through 5/25/2026 11:45 PM America/New_York.
fzus63 kdtx 251941
glflh
expires:202605260345;;639231
open lake forecast for lake huron
national weather service detroit/pontiac mi
341 pm edt mon may 25 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 prevail today across the central great
lakes. a cold front slowly sags south across lake huron late
tuesday through wednesday, with breezy southwest winds ahead of
the front. this front moves south across the rest of the area
wednesday into wednesday night, as high pressure builds in from
the north. varying winds are expected through the end of the
week.
lhz361-260345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
341 pm edt mon may 25 2026
.tonight...southeast winds 5 to 10 knots becoming south 10 to
15 knots after midnight...then becoming southwest 15 to 20 knots
early in the morning. waves 1 to 3 feet building to 3 to 5 feet
early in the morning.
.tuesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the afternoon. waves 3 to 5 feet.
.tuesday night...northwest winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight.
.wednesday...northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming west 5 to 10 knots
early in the afternoon. waves 2 feet or less.
.wednesday night...north winds 10 to 15 knots. waves 1 to 3 feet.
.thursday...north winds 5 to 10 knots becoming southwest 10 to
15 knots late in the afternoon...then becoming northwest 5 to
10 knots late in the evening. waves 2 feet or less.
.friday...west winds 5 to 10 knots becoming northwest 10 to
15 knots . waves 1 to 3 feet.
.saturday...north winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then backing
to the west early in the evening veering to the northwest by
midnight. waves 1 to 3 feet.
$$
(2/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/25/2026 3:41 PM America/New_York.
Valid through 5/25/2026 11:45 PM America/New_York.
fzus63 kdtx 251941
glflh
expires:202605260345;;639232
open lake forecast for lake huron
national weather service detroit/pontiac mi
341 pm edt mon may 25 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...light winds prevail today across the central great
lakes. a cold front slowly sags south across lake huron late
tuesday through wednesday, with breezy southwest winds ahead of
the front. this front moves south across the rest of the area
wednesday into wednesday night, as high pressure builds in from
the north. varying winds are expected through the end of the
week.
lhz362-363-260345-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
341 pm edt mon may 25 2026
.tonight...south winds 10 to 15 knots becoming southwest 15 to
20 knots early in the morning. waves 2 to 4 feet.
.tuesday...southwest winds 15 to 20 knots becoming northeast
10 to 15 knots late in the afternoon. waves 3 to 5 feet.
.tuesday night...north winds 10 to 15 knots decreasing to 5 to
10 knots by midnight...then backing to the northwest after
midnight. waves 2 to 4 feet.
.wednesday...northwest winds 5 to 10 knots. waves 1 to 3 feet.
.wednesday night...west winds 10 to 15 knots. waves 1 to 3 feet.
.thursday...north winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then backing to the west late in
the evening. waves 1 to 3 feet.
.friday...west winds 5 to 10 knots. waves 1 to 3 feet.
.saturday...north winds 10 to 15 knots decreasing to 5 to
10 knots . waves 1 to 3 feet.
$$
(3/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/25/2026 3:41 PM America/New_York.
Valid through 5/25/2026 11:45 PM America/New_York.
fzus63 kdtx 251941
glflh
expires:202605260345;;639233
open lake forecast for lake huron
national weather service detroit/pontiac mi
341 pm edt mon may 25 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 prevail today across the central great
lakes. a cold front slowly sags south across lake huron late
tuesday through wednesday, with breezy southwest winds ahead of
the front. this front moves south across the rest of the area
wednesday into wednesday night, as high pressure builds in from
the north. varying winds are expected through the end of the
week.
lhz462>464-260345-
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-
341 pm edt mon may 25 2026
.tonight...south winds 10 to 15 knots. waves 1 to 3 feet.
.tuesday...south winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet in the late morning and afternoon.
.tuesday night...southwest winds 5 to 10 knots veering to the
west by midnight...then veering to the west 5 to 10 knots after
midnight. waves 1 to 3 feet.
.wednesday...north winds 5 to 10 knots. waves 2 feet or less.
.wednesday night...north winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet.
.thursday...north winds 10 to 15 knots decreasing to 5 to
10 knots late in the afternoon...then becoming light and variable
late in the evening. waves 1 to 3 feet.
.friday...west winds 5 to 10 knots veering to the northwest early
in the evening...then becoming northwest 5 to 10 knots by
midnight. waves 2 feet or less.
.saturday...north winds 5 to 10 knots increasing to 10 to
15 knots until early evening...then decreasing to 5 to 10 knots
by midnight. waves 1 to 3 feet building to 2 to 4 feet .
$$
(4/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 5/25/2026 2:45 PM US/Central.
Valid through 5/25/2026 10:15 PM US/Central.
fzus63 kmkx 251945
glflm
expires:202605260315;;639329
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
245 pm cdt mon may 25 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 will continue to drift east to
the eastern great lakes today. fog has largely dissipated
across the lake. modest southerly winds will continue tonight
into tuesday, while high pressure around 30.3 inches is expected
to build toward eastern hudson bay tuesday into wednesday. this
will eventually move a cold front southward over lake michigan
for tuesday night and wednesday. winds will shift northeasterly
behind the front. another potential cold front sliding down the
lake possible friday.
lmz261-362-364-366-563-565-567-868-260315-
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-
245 pm cdt mon may 25 2026
sheboygan wi to pentwater mi north...
.tonight...south winds to 30 kt becoming southwest. waves 4 to
6 ft occasionally to 8 ft.
.tuesday...southwest winds to 30 kt becoming south 10 to 20 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft.
.tuesday night...south winds 10 to 20 kt backing to east 10 to
15 kt late in the evening, then becoming northeast after midnight
becoming northeast 5 to 10 kt late. chance of rain showers in the
evening. waves 2 to 4 ft subsiding to 1 to 3 ft.
.wednesday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft building to 3 to 5 ft.
.wednesday night...north winds 15 to 25 kt becoming northeast
10 to 20 kt. waves 3 to 5 ft.
.thursday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 2 to 4 ft.
.thursday night...north winds 10 to 20 kt becoming west 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 2 ft.
.friday...west winds 10 to 15 kt increasing to 10 to 20 kt. waves
1 to 2 ft.
.saturday...northeast winds 10 to 15 kt increasing to 15 to
25 kt. waves 1 to 3 ft building to 2 to 4 ft.
$$
(5/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 5/25/2026 2:45 PM US/Central.
Valid through 5/25/2026 10:15 PM US/Central.
fzus63 kmkx 251945
glflm
expires:202605260315;;639330
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
245 pm cdt mon may 25 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 will continue to drift east to
the eastern great lakes today. fog has largely dissipated
across the lake. modest southerly winds will continue tonight
into tuesday, while high pressure around 30.3 inches is expected
to build toward eastern hudson bay tuesday into wednesday. this
will eventually move a cold front southward over lake michigan
for tuesday night and wednesday. winds will shift northeasterly
behind the front. another potential cold front sliding down the
lake possible friday.
lmz080-669-671-673-675-777-779-870-872-874-876-878-260315-
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-
245 pm cdt mon may 25 2026
sheboygan wi to pentwater mi south...
.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 3 to 5 ft.
.tuesday...southwest winds 10 to 20 kt becoming south. waves 2 to
4 ft.
.tuesday night...south winds 10 to 20 kt diminishing to 10 to
15 kt late in the evening, then becoming southwest 5 to 10 kt
overnight. waves 2 to 4 ft subsiding to 1 to 3 ft.
.wednesday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft building to 3 to 5 ft.
.wednesday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft.
.thursday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 3 to 5 ft.
.thursday night...north winds 10 to 20 kt becoming northeast 5 to
10 kt. waves 2 to 4 ft.
.friday...north winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 to 3 ft.
.saturday...northeast winds 10 to 15 kt becoming north 15 to
25 kt. waves 1 to 3 ft building to 2 to 4 ft.
$$
(6/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/25/2026 4:01 PM America/New_York.
Valid through 5/26/2026 4:00 AM America/New_York.
fzus63 kmqt 252001
glfls
expires:202605260800;;639703
open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon may 25 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 29.6 inch low over northern ontario drags a 29.8 inch trough over
lake superior tonight. by tuesday night, a 30.4 inch high over the
western shores of hudson bay extends weak ridging over lake
superior. the parent high shifts south into lake superior on
thursday at 30.4 inches still. on friday, the high weakens to around
30.1 inches as it continues south towards chicago. however, another
high pressure ridge pushing in from hudson bay brings 30.1 inch
ridging back over lake superior late on friday, with the ridging
increasing once again to 30.3 inches by saturday as the parent high
over hudson bay pushes south.
lsz162-260800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt mon may 25 2026 /301 pm cdt mon may 25 2026/
.late this afternoon...east winds 5 to 15 knots. waves calm to
2 feet.
.tonight...south winds 10 to 20 knots becoming southwest 5 to
15 knots after midnight, then veering west late. a slight chance
of showers and thunderstorms through midnight. waves calm to
2 feet.
.tuesday...north winds 5 to 15 knots veering northeast in the
afternoon. waves calm to 2 feet.
.tuesday night...northeast winds 5 to 15 knots. waves calm to
2 feet.
.wednesday...northeast winds 10 to 20 knots. waves building to
2 to 4 feet.
.wednesday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet.
.thursday...northeast winds 5 to 15 knots. waves calm to 2 feet.
.thursday night...north winds less than 10 knots becoming west
5 to 15 knots after midnight. waves calm to 2 feet.
.friday...south winds 5 to 15 knots backing northeast. waves calm
to 2 feet.
.saturday...northeast winds 10 to 20 knots. waves building to
1 to 3 feet, then subsiding to calm to 2 feet.
$$
(7/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/25/2026 4:01 PM America/New_York.
Valid through 5/26/2026 4:00 AM America/New_York.
fzus63 kmqt 252001
glfls
expires:202605260800;;639704
open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon may 25 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 29.6 inch low over northern ontario drags a 29.8 inch trough over
lake superior tonight. by tuesday night, a 30.4 inch high over the
western shores of hudson bay extends weak ridging over lake
superior. the parent high shifts south into lake superior on
thursday at 30.4 inches still. on friday, the high weakens to around
30.1 inches as it continues south towards chicago. however, another
high pressure ridge pushing in from hudson bay brings 30.1 inch
ridging back over lake superior late on friday, with the ridging
increasing once again to 30.3 inches by saturday as the parent high
over hudson bay pushes south.
lsz263-260800-
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-
401 pm edt mon may 25 2026
.late this afternoon...southeast winds 5 to 15 knots. waves calm
to 2 feet.
.tonight...south winds 10 to 20 knots becoming southwest 15 to
25 knots after midnight, then becoming west 5 to 15 knots late. a
slight chance of thunderstorms through midnight. a slight chance
of rain showers. waves building to 1 to 3 feet.
.tuesday...north winds 5 to 15 knots veering south in the
afternoon, then backing east late. waves subsiding to calm to
2 feet.
.tuesday night...east winds 5 to 15 knots backing northeast after
midnight. waves calm to 2 feet.
.wednesday...northeast winds 10 to 20 knots. waves building to
2 to 4 feet.
.wednesday night...northeast winds 5 to 15 knots becoming east
less than 10 knots after midnight. waves subsiding to calm to
2 feet.
.thursday...northeast winds 5 to 15 knots. waves calm to 2 feet.
.thursday night...southwest winds 5 to 15 knots veering west
after midnight. waves calm to 2 feet.
.friday...west winds 5 to 15 knots backing east. waves calm to
2 feet.
.saturday...northeast winds 5 to 15 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet.
$$
(8/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/25/2026 4:01 PM America/New_York.
Valid through 5/26/2026 4:00 AM America/New_York.
fzus63 kmqt 252001
glfls
expires:202605260800;;639705
open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon may 25 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 29.6 inch low over northern ontario drags a 29.8 inch trough over
lake superior tonight. by tuesday night, a 30.4 inch high over the
western shores of hudson bay extends weak ridging over lake
superior. the parent high shifts south into lake superior on
thursday at 30.4 inches still. on friday, the high weakens to around
30.1 inches as it continues south towards chicago. however, another
high pressure ridge pushing in from hudson bay brings 30.1 inch
ridging back over lake superior late on friday, with the ridging
increasing once again to 30.3 inches by saturday as the parent high
over hudson bay pushes south.
lsz264-260800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt mon may 25 2026
.late this afternoon...southeast winds 5 to 15 knots. waves calm
to 2 feet.
.tonight...south winds 10 to 20 knots becoming southwest 15 to
25 knots after midnight, then becoming west 10 to 20 knots late.
a slight chance of thunderstorms through midnight. a chance of
showers. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet.
.tuesday...northwest winds 10 to 20 knots becoming west 5 to
15 knots in the afternoon, then backing southwest late. waves
subsiding to calm to 2 feet.
.tuesday night...south winds less than 10 knots backing east
after midnight, then becoming northeast 5 to 15 knots late. waves
calm to 2 feet.
.wednesday...northeast winds 5 to 15 knots backing north by mid
afternoon. waves calm to 2 feet.
.wednesday night...northeast winds 5 to 15 knots. waves calm to
2 feet.
.thursday...east winds less than 10 knots becoming south 5 to
15 knots by mid afternoon. waves calm to 2 feet.
.thursday night...south winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet.
.friday...west winds 5 to 15 knots backing east. waves calm to
2 feet.
.saturday...east winds 5 to 15 knots backing north. waves calm to
2 feet.
$$
(9/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/25/2026 4:01 PM America/New_York.
Valid through 5/26/2026 4:00 AM America/New_York.
fzus63 kmqt 252001
glfls
expires:202605260800;;639706
open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon may 25 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 29.6 inch low over northern ontario drags a 29.8 inch trough over
lake superior tonight. by tuesday night, a 30.4 inch high over the
western shores of hudson bay extends weak ridging over lake
superior. the parent high shifts south into lake superior on
thursday at 30.4 inches still. on friday, the high weakens to around
30.1 inches as it continues south towards chicago. however, another
high pressure ridge pushing in from hudson bay brings 30.1 inch
ridging back over lake superior late on friday, with the ridging
increasing once again to 30.3 inches by saturday as the parent high
over hudson bay pushes south.
lsz265-260800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt mon may 25 2026
.late this afternoon...southeast winds 10 to 20 knots. a slight
chance of showers and thunderstorms. waves calm to 2 feet.
.tonight...south winds 10 to 20 knots becoming southwest 20 to
30 knots after midnight, then becoming west 15 to 25 knots late.
a slight chance of showers. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.tuesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing southeast late. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.
.tuesday night...south winds 5 to 15 knots backing east late.
waves calm to 2 feet.
.wednesday...northeast winds 5 to 15 knots becoming north 10 to
20 knots by mid afternoon. waves calm to 2 feet.
.wednesday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet.
.thursday...northeast winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet.
.thursday night...south winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet.
.friday...northwest winds 5 to 15 knots veering east. waves calm
to 2 feet.
.saturday...east winds 10 to 20 knots becoming north 5 to
15 knots. waves calm to 2 feet.
$$
(10/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/25/2026 4:01 PM America/New_York.
Valid through 5/26/2026 4:00 AM America/New_York.
fzus63 kmqt 252001
glfls
expires:202605260800;;639707
open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon may 25 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 29.6 inch low over northern ontario drags a 29.8 inch trough over
lake superior tonight. by tuesday night, a 30.4 inch high over the
western shores of hudson bay extends weak ridging over lake
superior. the parent high shifts south into lake superior on
thursday at 30.4 inches still. on friday, the high weakens to around
30.1 inches as it continues south towards chicago. however, another
high pressure ridge pushing in from hudson bay brings 30.1 inch
ridging back over lake superior late on friday, with the ridging
increasing once again to 30.3 inches by saturday as the parent high
over hudson bay pushes south.
lsz266-260800-
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-
401 pm edt mon may 25 2026
.late this afternoon...southeast winds 10 to 20 knots. a slight
chance of showers and thunderstorms. waves calm to 2 feet.
.tonight...south winds 15 to 25 knots becoming southwest 20 to
30 knots after midnight, then diminishing to 15 to 25 knots late.
a slight chance of thunderstorms through midnight. a slight
chance of showers. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet.
.tuesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing west late. waves
subsiding to calm to 2 feet.
.tuesday night...west winds 5 to 15 knots veering north after
midnight, then veering northeast late. waves calm to 2 feet.
.wednesday...north winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet.
.wednesday night...north winds 10 to 20 knots becoming northeast
5 to 15 knots after midnight. waves subsiding to calm to 2 feet.
.thursday...northeast winds 5 to 15 knots backing northwest by
mid afternoon. waves calm to 2 feet.
.thursday night...southwest winds 5 to 15 knots. waves calm to
2 feet.
.friday...northwest winds 5 to 15 knots veering northeast. waves
calm to 2 feet.
.saturday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet.
$$
(11/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/25/2026 4:01 PM America/New_York.
Valid through 5/26/2026 4:00 AM America/New_York.
fzus63 kmqt 252001
glfls
expires:202605260800;;639708
open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon may 25 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 29.6 inch low over northern ontario drags a 29.8 inch trough over
lake superior tonight. by tuesday night, a 30.4 inch high over the
western shores of hudson bay extends weak ridging over lake
superior. the parent high shifts south into lake superior on
thursday at 30.4 inches still. on friday, the high weakens to around
30.1 inches as it continues south towards chicago. however, another
high pressure ridge pushing in from hudson bay brings 30.1 inch
ridging back over lake superior late on friday, with the ridging
increasing once again to 30.3 inches by saturday as the parent high
over hudson bay pushes south.
lsz267-260800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt mon may 25 2026
.late this afternoon...south winds 10 to 20 knots. a slight
chance of showers. waves calm to 2 feet.
.tonight...south winds 20 to 30 knots veering southwest after
midnight, then diminishing to 15 to 25 knots late. a slight
chance of rain showers after midnight. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet.
.tuesday...west winds 10 to 20 knots. waves subsiding to calm to
2 feet.
.tuesday night...west winds 5 to 15 knots veering north late.
waves calm to 2 feet.
.wednesday...north winds 5 to 15 knots becoming northwest 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet.
.wednesday night...north winds 10 to 20 knots veering northeast
after midnight. waves subsiding to calm to 2 feet.
.thursday...north winds 5 to 15 knots becoming northwest 10 to
20 knots by mid afternoon. waves calm to 2 feet.
.thursday night...west winds 5 to 15 knots. waves calm to 2 feet.
.friday...northwest winds 5 to 15 knots veering northeast. waves
calm to 2 feet.
.saturday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet.
$$
|