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(1/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/25/2026 3:58 PM America/New_York.
Valid through 10/26/2026 12:00 AM America/New_York.
fzus63 kdtx 251958
glflh
expires:202610260400;;176818
open lake forecast for lake huron
national weather service detroit/pontiac mi
358 pm edt sun oct 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...a cold front slowly drops southeast across the region
through tonight. following the passage of the front, an area of
high pressure, averaging 30.60 inches, migrates southeast across
ontario and new england through mid-week, while an area of low
pressure lifts north across northern plains and up into the
canadian prairies.
lhz361-260400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
358 pm edt sun oct 25 2026
.tonight...northwest winds 5 to 10 knots. waves 2 feet or less.
.monday...north winds 5 to 10 knots. waves 2 feet or less.
.monday night...north winds 5 to 10 knots becoming east 10 to
15 knots after midnight. waves 2 feet or less.
.tuesday...east winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet early in the afternoon.
.tuesday night...east winds 15 to 20 knots becoming southeast
10 to 15 knots in the late evening and overnight. waves 2 to
4 feet.
.wednesday...south winds 10 to 15 knots. a chance of rain late in
the evening. waves 2 to 4 feet subsiding to 1 to 3 feet late in
the afternoon.
.thursday...southwest winds 10 to 15 knots becoming west 5 to
10 knots . a chance of rain. waves 1 to 3 feet.
.friday...light and variable winds becoming west 5 to 10 knots. a
chance of rain by midnight. waves 2 feet or less.
$$
(2/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/25/2026 3:58 PM America/New_York.
Valid through 10/26/2026 12:00 AM America/New_York.
fzus63 kdtx 251958
glflh
expires:202610260400;;176819
open lake forecast for lake huron
national weather service detroit/pontiac mi
358 pm edt sun oct 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...a cold front slowly drops southeast across the region
through tonight. following the passage of the front, an area of
high pressure, averaging 30.60 inches, migrates southeast across
ontario and new england through mid-week, while an area of low
pressure lifts north across northern plains and up into the
canadian prairies.
lhz362-363-260400-
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-
358 pm edt sun oct 25 2026
.tonight...south winds 10 to 15 knots becoming southwest 5 to
10 knots late in the evening...then increasing to 10 to 15 knots
after midnight veering to the northwest early in the morning.
waves 1 to 3 feet.
.monday...north winds 10 to 15 knots. waves 1 to 3 feet.
.monday night...north winds 10 to 15 knots veering to the
northeast after midnight. waves 1 to 3 feet.
.tuesday...east winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and early afternoon...then decreasing to 5 to
10 knots early in the afternoon. waves 1 to 3 feet.
.tuesday night...southeast winds 10 to 15 knots veering to the
south after midnight. waves 1 to 3 feet building to 2 to 4 feet
after midnight.
.wednesday...south winds 15 to 20 knots decreasing to 10 to
15 knots. waves 3 to 5 feet.
.thursday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then veering to the west by
midnight. a chance of rain. waves 2 to 4 feet subsiding to 1 to
3 feet .
.friday...northwest winds 5 to 10 knots backing to the south
early in the evening...then backing to the east by midnight. a
chance of rain by midnight. waves 2 feet or less.
$$
(3/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/25/2026 3:58 PM America/New_York.
Valid through 10/26/2026 12:00 AM America/New_York.
fzus63 kdtx 251958
glflh
expires:202610260400;;176820
open lake forecast for lake huron
national weather service detroit/pontiac mi
358 pm edt sun oct 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...a cold front slowly drops southeast across the region
through tonight. following the passage of the front, an area of
high pressure, averaging 30.60 inches, migrates southeast across
ontario and new england through mid-week, while an area of low
pressure lifts north across northern plains and up into the
canadian prairies.
lhz462>464-260400-
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-
358 pm edt sun oct 25 2026
.tonight...south winds 5 to 10 knots increasing to 10 to 15 knots
late in the evening...then becoming southwest 5 to 10 knots after
midnight. waves 1 to 3 feet.
.monday...north winds 10 to 15 knots. waves 1 to 3 feet.
.monday night...north winds 10 to 15 knots veering to the
northeast after midnight. waves 2 to 4 feet.
.tuesday...east winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and afternoon. waves 1 to 3 feet.
.tuesday night...east winds 5 to 10 knots becoming southeast
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet building to 2 to 4 feet after midnight.
.wednesday...south winds 10 to 15 knots. waves 2 to 4 feet.
.thursday...southwest winds 10 to 15 knots becoming west 5 to
10 knots by midnight. a chance of rain until early evening. waves
1 to 3 feet.
.friday...north winds 5 to 10 knots veering to the east . waves
2 feet or less.
$$
(4/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 10/25/2026 2:38 PM US/Central.
Valid through 10/25/2026 10:15 PM US/Central.
fzus63 kmkx 251938
glflm
expires:202610260315;;176520
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
238 pm cdt sun oct 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...
low pressure around 29.3 inches shifting east of hudson bay
and high pressure around 30.6 inches tracking from saskatchewan
to the northern great lakes through monday will result in a
slow moving cold front from north to south across lake michigan.
expect modest southerly winds to abruptly become north to
northeasterly with the frontal passage from north to south
overnight into monday morning. breezy north to northeast winds
will continue through monday evening. look for winds to become
southeasterly tuesday as low pressure of 30.0 inches tracks from
southwest minnesota to the duluth area, and become breezy out of
the south on wednesday as the next low of 29.9 inches takes a
similar path. winds will shift to northerly on thursday in the
wake of the associated trough.
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-
238 pm cdt sun oct 25 2026
sheboygan wi to pentwater mi north...
.tonight...north winds 10 to 15 kt increasing to 10 to 20 kt.
chance of rain showers this evening, then slight chance of rain
showers overnight. waves 2 to 4 ft.
.monday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft.
.monday night...northeast winds 15 to 25 kt becoming east 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft.
.tuesday...southeast winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft.
.tuesday night...southeast winds 15 to 25 kt becoming south.
waves 4 to 6 ft occasionally to 8 ft.
.wednesday...south winds to 30 kt. waves 4 to 6 ft occasionally
to 8 ft.
.wednesday night...south winds to 30 kt becoming southwest.
chance of showers. waves 4 to 6 ft occasionally to 8 ft.
.thursday...southwest winds 15 to 25 kt becoming west 10 to
20 kt. chance of showers. waves 3 to 5 ft.
.friday...east winds 10 to 15 kt veering to south. chance of
showers. waves 1 to 2 ft.
$$
(5/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 10/25/2026 2:38 PM US/Central.
Valid through 10/25/2026 10:15 PM US/Central.
fzus63 kmkx 251938
glflm
expires:202610260315;;176521
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
238 pm cdt sun oct 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...
low pressure around 29.3 inches shifting east of hudson bay
and high pressure around 30.6 inches tracking from saskatchewan
to the northern great lakes through monday will result in a
slow moving cold front from north to south across lake michigan.
expect modest southerly winds to abruptly become north to
northeasterly with the frontal passage from north to south
overnight into monday morning. breezy north to northeast winds
will continue through monday evening. look for winds to become
southeasterly tuesday as low pressure of 30.0 inches tracks from
southwest minnesota to the duluth area, and become breezy out of
the south on wednesday as the next low of 29.9 inches takes a
similar path. winds will shift to northerly on thursday in the
wake of the associated trough.
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-
238 pm cdt sun oct 25 2026
sheboygan wi to pentwater mi south...
.tonight...south winds 10 to 15 kt veering to north 10 to 20 kt.
waves 3 to 5 ft.
.monday...north winds 10 to 20 kt becoming northeast 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft building to 4 to 7 ft
occasionally to 9 ft.
.monday night...northeast winds 15 to 25 kt becoming east 10 to
20 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.tuesday...southeast winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft.
.tuesday night...southeast winds 10 to 20 kt becoming south.
waves 4 to 6 ft occasionally to 8 ft.
.wednesday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft.
.wednesday night...south winds 15 to 25 kt becoming southwest
10 to 20 kt. waves 4 to 6 ft occasionally to 8 ft.
.thursday...southwest winds 10 to 20 kt. chance of showers. waves
3 to 5 ft.
.friday...east winds 10 to 15 kt becoming southeast. chance of
showers. waves 1 to 3 ft.
$$
(6/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 10/25/2026 4:01 PM America/New_York.
Valid through 10/26/2026 4:00 AM America/New_York.
fzus63 kmqt 252001
glfls
expires:202610260800;;176914
open lake forecast for lake superior
national weather service marquette mi
400 pm edt sun oct 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...
30.7 inch high pressure over the canadian prairie extends 30.4 inch
ridging over the great lakes by this evening. high pressure becomes
centered over northern ontario at 30.5 inches on monday, shifting to
the saint lawrence seaway on tuesday. a 29.7 inch low tracks from
the northern plains tuesday night to the james bay at 29.6 inches by
thursday morning, dragging a 29.9 inch trough across lake superior
on wednesday. high pressure of 30.2 to 30.3 inches returns to the
upper great lakes late thursday into friday.
lsz162-260800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt sun oct 25 2026 /300 pm cdt sun oct 25 2026/
.late this afternoon...west winds 10 to 20 knots. waves 1 to
3 feet.
.tonight...northwest winds 10 to 20 knots veering north after
midnight. waves subsiding to calm to 2 feet.
.monday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then veering east late. waves calm to
2 feet.
.monday night...east winds 5 to 15 knots increasing to 15 to
25 knots. a chance of rain showers after midnight. waves building
to 2 to 4 feet.
.tuesday...east winds 15 to 25 knots. rain showers. waves
building to 3 to 5 feet occasionally to 7 feet.
.tuesday night...east winds 10 to 20 knots becoming south 5 to
15 knots after midnight. a chance of showers. waves subsiding to
1 to 3 feet.
.wednesday...southwest winds 10 to 20 knots. waves 1 to 3 feet.
.wednesday night...west winds 10 to 20 knots. a chance of
showers. waves subsiding to calm to 2 feet.
.thursday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet.
.friday...north winds 5 to 15 knots veering east. a chance of
showers. waves calm to 2 feet.
$$
(7/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 10/25/2026 4:01 PM America/New_York.
Valid through 10/26/2026 4:00 AM America/New_York.
fzus63 kmqt 252001
glfls
expires:202610260800;;176915
open lake forecast for lake superior
national weather service marquette mi
400 pm edt sun oct 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...
30.7 inch high pressure over the canadian prairie extends 30.4 inch
ridging over the great lakes by this evening. high pressure becomes
centered over northern ontario at 30.5 inches on monday, shifting to
the saint lawrence seaway on tuesday. a 29.7 inch low tracks from
the northern plains tuesday night to the james bay at 29.6 inches by
thursday morning, dragging a 29.9 inch trough across lake superior
on wednesday. high pressure of 30.2 to 30.3 inches returns to the
upper great lakes late thursday into friday.
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-
400 pm edt sun oct 25 2026
.late this afternoon...west winds 10 to 20 knots. waves 2 to
4 feet.
.tonight...northwest winds 10 to 20 knots veering north after
midnight. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet.
.monday...north winds 5 to 15 knots veering northeast in the
afternoon. waves subsiding to calm to 2 feet.
.monday night...east winds 5 to 15 knots increasing to 10 to
20 knots late. a chance of rain showers after midnight. waves
building to 1 to 3 feet.
.tuesday...southeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a chance of rain showers through early
afternoon, then rain showers likely by mid afternoon. waves
building to 3 to 5 feet occasionally to 7 feet.
.tuesday night...southeast winds 15 to 25 knots becoming south
10 to 20 knots after midnight. a chance of showers. waves
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
2 to 4 feet.
.wednesday...southwest winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. waves subsiding to 1 to 3 feet.
.wednesday night...southwest winds 10 to 20 knots veering west
after midnight. a chance of showers. waves 1 to 3 feet.
.thursday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet.
.friday...west winds 5 to 15 knots backing east. waves calm to
2 feet.
$$
(8/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 10/25/2026 4:01 PM America/New_York.
Valid through 10/26/2026 4:00 AM America/New_York.
fzus63 kmqt 252001
glfls
expires:202610260800;;176916
open lake forecast for lake superior
national weather service marquette mi
400 pm edt sun oct 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...
30.7 inch high pressure over the canadian prairie extends 30.4 inch
ridging over the great lakes by this evening. high pressure becomes
centered over northern ontario at 30.5 inches on monday, shifting to
the saint lawrence seaway on tuesday. a 29.7 inch low tracks from
the northern plains tuesday night to the james bay at 29.6 inches by
thursday morning, dragging a 29.9 inch trough across lake superior
on wednesday. high pressure of 30.2 to 30.3 inches returns to the
upper great lakes late thursday into friday.
lsz264-260800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm edt sun oct 25 2026
.late this afternoon...west winds 10 to 20 knots. waves 2 to
4 feet.
.tonight...northwest winds 10 to 20 knots veering north after
midnight. waves 2 to 4 feet.
.monday...north winds 5 to 15 knots. waves subsiding to calm to
2 feet.
.monday night...northeast winds 5 to 15 knots veering east late.
waves calm to 2 feet.
.tuesday...southeast winds 15 to 25 knots. a chance of rain
showers. waves building to 3 to 6 feet occasionally to 8 feet.
.tuesday night...southeast winds 20 to 30 knots becoming south
15 to 25 knots after midnight. a chance of showers through
midnight. waves 3 to 6 feet occasionally to 8 feet.
.wednesday...south winds 10 to 20 knots becoming southwest 15 to
25 knots by mid afternoon. waves subsiding to 2 to 4 feet.
.wednesday night...southwest winds 10 to 20 knots veering west
after midnight. a chance of showers. waves subsiding to 1 to
3 feet.
.thursday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet.
.friday...west winds 5 to 15 knots backing southeast. waves calm
to 2 feet.
$$
(9/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 10/25/2026 4:01 PM America/New_York.
Valid through 10/26/2026 4:00 AM America/New_York.
fzus63 kmqt 252001
glfls
expires:202610260800;;176917
open lake forecast for lake superior
national weather service marquette mi
400 pm edt sun oct 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...
30.7 inch high pressure over the canadian prairie extends 30.4 inch
ridging over the great lakes by this evening. high pressure becomes
centered over northern ontario at 30.5 inches on monday, shifting to
the saint lawrence seaway on tuesday. a 29.7 inch low tracks from
the northern plains tuesday night to the james bay at 29.6 inches by
thursday morning, dragging a 29.9 inch trough across lake superior
on wednesday. high pressure of 30.2 to 30.3 inches returns to the
upper great lakes late thursday into friday.
lsz265-260800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt sun oct 25 2026
.late this afternoon...west winds 10 to 20 knots. waves 1 to
3 feet.
.tonight...west winds 10 to 20 knots becoming north 15 to
25 knots after midnight. waves building to 2 to 4 feet.
.monday...north winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to calm to 2 feet.
.monday night...north winds 10 to 20 knots veering east after
midnight. waves calm to 2 feet.
.tuesday...southeast winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. a chance of rain showers by mid
afternoon. waves building to 3 to 6 feet occasionally to 8 feet.
.tuesday night...southeast winds 20 to 30 knots becoming south
15 to 25 knots after midnight. waves subsiding to 2 to 4 feet.
.wednesday...south winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves subsiding to calm to 2 feet.
.wednesday night...southwest winds 15 to 25 knots veering west
after midnight. a chance of showers. waves calm to 2 feet.
.thursday...west winds 10 to 20 knots. waves calm to 2 feet.
.friday...west winds 10 to 20 knots backing southeast. a chance
of showers. waves calm to 2 feet.
$$
(10/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 10/25/2026 4:01 PM America/New_York.
Valid through 10/26/2026 4:00 AM America/New_York.
fzus63 kmqt 252001
glfls
expires:202610260800;;176918
open lake forecast for lake superior
national weather service marquette mi
400 pm edt sun oct 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...
30.7 inch high pressure over the canadian prairie extends 30.4 inch
ridging over the great lakes by this evening. high pressure becomes
centered over northern ontario at 30.5 inches on monday, shifting to
the saint lawrence seaway on tuesday. a 29.7 inch low tracks from
the northern plains tuesday night to the james bay at 29.6 inches by
thursday morning, dragging a 29.9 inch trough across lake superior
on wednesday. high pressure of 30.2 to 30.3 inches returns to the
upper great lakes late thursday into friday.
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-
400 pm edt sun oct 25 2026
.late this afternoon...west winds 10 to 20 knots. waves 2 to
4 feet.
.tonight...west winds 10 to 20 knots becoming north 15 to
25 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet.
.monday...north winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to 1 to 3 feet.
.monday night...north winds 5 to 15 knots veering east late.
waves subsiding to calm to 2 feet.
.tuesday...southeast winds 10 to 20 knots increasing to 20 to
30 knots by mid afternoon. a chance of rain showers by mid
afternoon. waves building to 3 to 5 feet occasionally to 7 feet.
.tuesday night...southeast winds 20 to 30 knots veering south
after midnight. waves building to 3 to 6 feet occasionally to
8 feet.
.wednesday...south winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. a chance of showers. waves subsiding
to 2 to 4 feet.
.wednesday night...southwest winds 15 to 25 knots veering west
after midnight. a chance of showers through midnight, then
showers likely after midnight. waves subsiding to 1 to 3 feet.
.thursday...west winds 10 to 20 knots becoming northwest 5 to
15 knots. waves subsiding to calm to 2 feet.
.friday...west winds 10 to 20 knots backing south. waves calm to
2 feet.
$$
(11/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 10/25/2026 4:01 PM America/New_York.
Valid through 10/26/2026 4:00 AM America/New_York.
fzus63 kmqt 252001
glfls
expires:202610260800;;176919
open lake forecast for lake superior
national weather service marquette mi
400 pm edt sun oct 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...
30.7 inch high pressure over the canadian prairie extends 30.4 inch
ridging over the great lakes by this evening. high pressure becomes
centered over northern ontario at 30.5 inches on monday, shifting to
the saint lawrence seaway on tuesday. a 29.7 inch low tracks from
the northern plains tuesday night to the james bay at 29.6 inches by
thursday morning, dragging a 29.9 inch trough across lake superior
on wednesday. high pressure of 30.2 to 30.3 inches returns to the
upper great lakes late thursday into friday.
lsz267-260800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt sun oct 25 2026
.late this afternoon...west winds 10 to 20 knots. waves 1 to
3 feet.
.tonight...west winds 10 to 20 knots becoming northwest 15 to
25 knots after midnight, then veering north late. waves building
to 3 to 5 feet occasionally to 7 feet.
.monday...north winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to 1 to 3 feet.
.monday night...north winds 10 to 20 knots veering east after
midnight. waves subsiding to calm to 2 feet.
.tuesday...southeast winds 10 to 20 knots increasing to 20 to
30 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet.
.tuesday night...southeast winds 20 to 30 knots veering south
after midnight. waves building to 3 to 6 feet occasionally to
8 feet.
.wednesday...south winds 20 to 30 knots. a chance of showers.
waves subsiding to 2 to 4 feet.
.wednesday night...southwest winds 15 to 25 knots veering west
after midnight. a chance of showers through midnight, then
showers likely after midnight. waves 2 to 4 feet.
.thursday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet.
.friday...west winds 10 to 20 knots backing southeast. waves calm
to 2 feet.
$$
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