fzus63 kdtx 051345
glflh 
expires:202610052200;;574062

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am edt mon oct 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...high pressure, 30.20 inches, will move into the region
monday afternoon, bringing much lighter wind conditions. the next
system to affect the region will be later tuesday with stronger
southwest winds.


lhz361-052200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
945 am edt mon oct 5 2026

.rest of today...northwest winds 15 to 20 knots. gusts to
30 knots late in the morning then 30 knots late in the afternoon.
waves 4 to 6 feet. waves occasionally around 8 feet. 
.tonight...northwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the evening...then becoming light and variable
after midnight. waves 2 to 4 feet subsiding to 2 feet or less
after midnight. 
.tuesday...south winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. waves 1 to 3 feet. 
.tuesday night...south winds 10 to 15 knots becoming southwest
15 to 20 knots with gusts to around 30 knots in the late evening
and overnight. waves 3 to 5 feet. 
.wednesday...west winds 10 to 15 knots. waves 2 to 4 feet. 
.thursday...west winds 15 to 20 knots with gusts to around
30 knots decreasing to 5 to 10 knots by midnight. waves 3 to
5 feet subsiding to 2 to 4 feet by midnight. 
.friday...west winds 5 to 10 knots increasing to 10 to 15 knots
until early evening...then becoming northwest 5 to 10 knots by
midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 051345
glflh 
expires:202610052200;;574063

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am edt mon oct 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...high pressure, 30.20 inches, will move into the region
monday afternoon, bringing much lighter wind conditions. the next
system to affect the region will be later tuesday with stronger
southwest winds.


lhz362-363-052200-
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-
945 am edt mon oct 5 2026

.rest of today...northwest winds 20 to 25 knots with gusts to
around 30 knots. waves 8 to 12 feet. waves occasionally around
15 feet. 
.tonight...northwest winds 15 to 20 knots becoming light and
variable. waves 4 to 6 feet subsiding to 1 to 3 feet early in the
morning. waves occasionally around 8 feet. 
.tuesday...light and variable winds becoming south 10 to 15 knots
in the late morning and early afternoon...then increasing to
15 to 20 knots with gusts to around 30 knots early in the
afternoon. waves 1 to 3 feet building to 4 to 6 feet early in the
afternoon. waves occasionally around 8 feet. 
.tuesday night...southwest winds 20 to 25 knots with gusts to
around 30 knots. waves 6 to 9 feet. waves occasionally around
12 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots late in the morning...then veering to the northwest late
in the afternoon. waves 4 to 6 feet. waves occasionally around
8 feet. 
.thursday...west winds 15 to 20 knots decreasing to 10 to
15 knots by midnight. waves 3 to 5 feet. 
.friday...west winds 10 to 15 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 051345
glflh 
expires:202610052200;;574064

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am edt mon oct 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...high pressure, 30.20 inches, will move into the region
monday afternoon, bringing much lighter wind conditions. the next
system to affect the region will be later tuesday with stronger
southwest winds.


lhz462>464-052200-
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-
945 am edt mon oct 5 2026

.rest of today...northwest winds 20 to 25 knots decreasing to
15 to 20 knots in the afternoon. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.tonight...northwest winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 3 to 5 feet. 
.tuesday...west winds 5 to 10 knots backing to the southwest in
the late morning and early afternoon...then becoming south 10 to
15 knots early in the afternoon. waves 1 to 3 feet. 
.tuesday night...south winds 15 to 20 knots becoming southwest
20 to 25 knots in the late evening and overnight. waves 4 to
6 feet. waves occasionally around 8 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet late in the
afternoon. 
.thursday...west winds 10 to 15 knots. waves 2 to 4 feet. 
.friday...west winds 10 to 15 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 050754
glflh 
expires:202610051600;;561748

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 am edt mon oct 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...low pressure, 29.50 inches, south of james bay will
track into quebec tonight. this low is driving a cold front
through the region, with west/northwest flow expected tonight
into monday. speeds will increase to around 25 knots this
evening, with gale force gusts to 35 knots still possible. high
pressure, 30.20 inches, will move into the region monday
afternoon, bringing much lighter wind conditions. the next system
to affect the region will be later tuesday with stronger
southwest winds.


lhz363-051600-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
354 am edt mon oct 5 2026

.today...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the afternoon. waves
6 to 9 feet. waves occasionally around 12 feet. 
.tonight...northwest winds 15 to 20 knots becoming light and
variable. waves 4 to 6 feet subsiding to 1 to 3 feet early in the
morning. waves occasionally around 8 feet. 
.tuesday...light and variable winds becoming south 5 to 10 knots
in the late morning and early afternoon...then increasing to
10 to 15 knots early in the afternoon. waves 1 to 3 feet building
to 2 to 4 feet early in the afternoon. 
.tuesday night...south winds 15 to 20 knots becoming southwest
20 to 25 knots in the late evening and overnight. gusts to
30 knots. waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 5 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 10 feet. 
.thursday...west winds 15 to 20 knots decreasing to 10 to
15 knots. waves 2 to 4 feet. 
.friday...west winds 10 to 15 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 050754
glflh 
expires:202610051600;;561747

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 am edt mon oct 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...low pressure, 29.50 inches, south of james bay will
track into quebec tonight. this low is driving a cold front
through the region, with west/northwest flow expected tonight
into monday. speeds will increase to around 25 knots this
evening, with gale force gusts to 35 knots still possible. high
pressure, 30.20 inches, will move into the region monday
afternoon, bringing much lighter wind conditions. the next system
to affect the region will be later tuesday with stronger
southwest winds.


lhz361-362-051600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
354 am edt mon oct 5 2026

.today...northwest winds 20 to 25 knots with gusts to around
30 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.tonight...northwest winds 15 to 20 knots early in the evening
decreasing to 10 to 15 knots...then decreasing to 5 to 10 knots
after midnight becoming light and variable. waves 4 to 6 feet
subsiding to 1 to 3 feet early in the morning. waves occasionally
around 8 feet. 
.tuesday...south winds 5 to 10 knots increasing to 15 to 20 knots
with gusts to around 30 knots. waves 1 to 3 feet building to 4 to
6 feet early in the afternoon. waves occasionally around 8 feet. 
.tuesday night...south winds 20 to 25 knots becoming southwest
15 to 20 knots in the late evening and overnight. gusts to
30 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday...southwest winds 10 to 15 knots veering to the west
late in the afternoon. waves 3 to 5 feet subsiding to 2 to 4 feet
late in the evening. 
.thursday...west winds 15 to 20 knots with gusts to around
30 knots decreasing to 5 to 10 knots by midnight. waves 3 to
5 feet. 
.friday...west winds 10 to 15 knots decreasing to 5 to 10 knots
by midnight. waves 1 to 3 feet building to 2 to 4 feet . 


$$

fzus63 kmkx 051402
glflm 
expires:202610052115;;574755

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt mon oct 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...

northwest winds will gradually decrease this morning as high 
pressure of 30.2 inches enters from the west.

low pressure of 29.4 inches will build toward the hudson bay 
tuesday through thursday. ahead of this low, south southwest 
winds will increase tuesday afternoon through wednesday and 
become gusty. a gale watch is in effect tuesday afternoon and
evening for the north half of the lake. the low will pull a cold 
front across the waters wednesday night into thursday, delivering 
scattered showers and shifting winds to the west northwest.


lmz080-669-671-673-675-777-779-870-872-874-876-878-052115-
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-
902 am cdt mon oct 5 2026

sheboygan wi to pentwater mi south...

.rest of today...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tonight...northeast winds 5 to 10 kt becoming east late in the
evening, then becoming southeast 10 to 15 kt after midnight
becoming south 10 to 20 kt late. waves 1 to 3 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. a few
gusts to gale force possible in the late afternoon and early
evening. waves 3 to 5 ft building to 7 to 10 ft occasionally to 
13 ft. 
.tuesday night...southwest winds to 30 kt diminishing to 15 to 25
kt overnight. waves 7 to 10 ft occasionally to 13 ft subsiding to
5 to 8 ft occasionally to 10 ft. 
.wednesday...west winds 10 to 20 kt. waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft. 
.wednesday night...west winds 10 to 20 kt becoming northwest.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.thursday...northwest winds 10 to 20 kt becoming west. waves 4 to
6 ft occasionally to 8 ft. 
.friday...west winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 051402
glflm 
expires:202610052115;;574754

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt mon oct 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...

northwest winds will gradually decrease this morning as high 
pressure of 30.2 inches enters from the west.

low pressure of 29.4 inches will build toward the hudson bay 
tuesday through thursday. ahead of this low, south southwest 
winds will increase tuesday afternoon through wednesday and 
become gusty. a gale watch is in effect tuesday afternoon and
evening for the north half of the lake. the low will pull a cold 
front across the waters wednesday night into thursday, delivering 
scattered showers and shifting winds to the west northwest.


lmz261-362-364-366-563-565-567-868-052115-
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-
902 am cdt mon oct 5 2026

sheboygan wi to pentwater mi north...

...gale watch in effect from tuesday afternoon through tuesday
evening...

.rest of today...northwest winds 15 to 25 kt becoming north 10 to
20 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.tonight...northeast winds 10 to 15 kt veering to south 10 to
20 kt. chance of showers overnight. waves 1 to 2 ft building to
2 to 4 ft. 
.tuesday...south winds 15 to 25 kt increasing to gales to 40 kt.
chance of showers. waves 4 to 6 ft occasionally to 8 ft building
to 10 to 14 ft occasionally to 18 ft. 
.tuesday night...southwest gales to 40 kt becoming west to 30 kt
overnight. waves 8 to 12 ft occasionally to 16 ft subsiding to
5 to 8 ft occasionally to 10 ft. 
.wednesday...northwest winds 15 to 25 kt becoming west. waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.wednesday night...west winds 10 to 20 kt becoming northwest.
waves 3 to 5 ft. 
.thursday...northwest winds 15 to 25 kt becoming west. waves 3 to
5 ft. 
.friday...west winds 10 to 20 kt. waves 1 to 3 ft.  

$$

fzus63 kmqt 051401
glfls 
expires:202610052000;;574693

open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon oct 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...

30.3 inch high pressure will move over the great lakes today. behind 
this, a 29.5 inch low drops southeast out of northern canada, 
reaching far northern ontario at 29.5 inches by tuesday evening. 
this brings 29.6 inch troughing over lake superior late on tuesday, 
weakening to 29.7 inches through wednesday. high pressure builds 
back in from the canadian prairies and northern plains late in the 
week, resulting in 30.1 inch ridging over lake superior late 
thursday into friday. a 29.4 inch low will develop off the northern 
rockies late friday and extend a 29.7 to 29.9 inch trough to the 
upper great lakes by saturday night.




lsz162-052000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt mon oct 5 2026 /901 am cdt mon oct 5 2026/

.rest of today...north winds 5 to 15 knots veering south in the
afternoon. waves calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots veering south late. a
chance of showers. waves building to 1 to 3 feet. 
.tuesday...south winds 10 to 20 knots becoming southwest 15 to
25 knots in the afternoon, then veering west late. waves building
to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.tuesday night...west winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.wednesday...west winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 1 to 3 feet. 
.wednesday night...west winds 10 to 20 knots. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.thursday...west winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots becoming east 10 to 20 knots.
waves building to 1 to 3 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202610052000;;574694

open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon oct 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...

30.3 inch high pressure will move over the great lakes today. behind 
this, a 29.5 inch low drops southeast out of northern canada, 
reaching far northern ontario at 29.5 inches by tuesday evening. 
this brings 29.6 inch troughing over lake superior late on tuesday, 
weakening to 29.7 inches through wednesday. high pressure builds 
back in from the canadian prairies and northern plains late in the 
week, resulting in 30.1 inch ridging over lake superior late 
thursday into friday. a 29.4 inch low will develop off the northern 
rockies late friday and extend a 29.7 to 29.9 inch trough to the 
upper great lakes by saturday night.




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-
1001 am edt mon oct 5 2026

.rest of today...north winds 5 to 15 knots backing northwest in
the afternoon, then backing south late. waves 1 to 3 feet
subsiding to calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots becoming south 10 to
20 knots after midnight, then increasing to 15 to 25 knots late.
a chance of showers. waves building to 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots veering west late. a slight
chance of showers through early afternoon. waves 2 to 4 feet. 
.tuesday night...west winds 10 to 20 knots. waves subsiding to
1 to 3 feet. 
.wednesday...west winds 15 to 25 knots. a slight chance of
showers by mid afternoon. waves building to 2 to 4 feet. 
.wednesday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves 2 to 4 feet. 
.thursday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet. 
.friday...west winds 10 to 20 knots backing east. waves building
to 1 to 3 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202610052000;;574695

open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon oct 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...

30.3 inch high pressure will move over the great lakes today. behind 
this, a 29.5 inch low drops southeast out of northern canada, 
reaching far northern ontario at 29.5 inches by tuesday evening. 
this brings 29.6 inch troughing over lake superior late on tuesday, 
weakening to 29.7 inches through wednesday. high pressure builds 
back in from the canadian prairies and northern plains late in the 
week, resulting in 30.1 inch ridging over lake superior late 
thursday into friday. a 29.4 inch low will develop off the northern 
rockies late friday and extend a 29.7 to 29.9 inch trough to the 
upper great lakes by saturday night.




lsz264-052000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt mon oct 5 2026

.rest of today...northwest winds 5 to 15 knots. waves 2 to 4 feet
subsiding to calm to 2 feet. 
.tonight...south winds 5 to 15 knots increasing to 10 to 20 knots
late. a slight chance of showers after midnight. waves building
to 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots veering west late. a slight
chance of showers through early afternoon. waves building to 3 to
6 feet occasionally to 8 feet. 
.tuesday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to 2 to 4 feet. 
.wednesday...west winds 15 to 25 knots. a slight chance of
showers by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.wednesday night...northwest winds 15 to 25 knots. waves building
to 3 to 5 feet occasionally to 7 feet. 
.thursday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to calm to 2 feet. 
.friday...northwest winds 10 to 20 knots. waves subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202610052000;;574696

open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon oct 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...

30.3 inch high pressure will move over the great lakes today. behind 
this, a 29.5 inch low drops southeast out of northern canada, 
reaching far northern ontario at 29.5 inches by tuesday evening. 
this brings 29.6 inch troughing over lake superior late on tuesday, 
weakening to 29.7 inches through wednesday. high pressure builds 
back in from the canadian prairies and northern plains late in the 
week, resulting in 30.1 inch ridging over lake superior late 
thursday into friday. a 29.4 inch low will develop off the northern 
rockies late friday and extend a 29.7 to 29.9 inch trough to the 
upper great lakes by saturday night.




lsz265-052000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt mon oct 5 2026

.rest of today...northwest winds 15 to 25 knots diminishing to
5 to 15 knots. waves 3 to 5 feet occasionally to 7 feet subsiding
to calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots becoming south 10 to
20 knots after midnight, then increasing to 15 to 25 knots late.
a slight chance of showers after midnight. waves building to 2 to
4 feet. 
.tuesday...south winds 20 to 30 knots becoming west 15 to
25 knots late. a slight chance of showers. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to calm to 2 feet. 
.tuesday night...west winds 15 to 25 knots increasing to 20 to
30 knots after midnight. waves building to 2 to 4 feet. 
.wednesday...west winds 20 to 30 knots increasing to gales to
35 knots by mid afternoon. waves 2 to 4 feet. 
.wednesday night...west winds 20 to 30 knots veering northwest
after midnight. waves building to 3 to 5 feet occasionally to
7 feet. 
.thursday...northwest winds 20 to 30 knots becoming west 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to calm to 2 feet. 
.friday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202610052000;;574697

open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon oct 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...

30.3 inch high pressure will move over the great lakes today. behind 
this, a 29.5 inch low drops southeast out of northern canada, 
reaching far northern ontario at 29.5 inches by tuesday evening. 
this brings 29.6 inch troughing over lake superior late on tuesday, 
weakening to 29.7 inches through wednesday. high pressure builds 
back in from the canadian prairies and northern plains late in the 
week, resulting in 30.1 inch ridging over lake superior late 
thursday into friday. a 29.4 inch low will develop off the northern 
rockies late friday and extend a 29.7 to 29.9 inch trough to the 
upper great lakes by saturday night.




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-
1001 am edt mon oct 5 2026

...gale watch in effect from tuesday morning through tuesday
afternoon...

.rest of today...north winds 15 to 25 knots becoming northwest
10 to 20 knots in the afternoon, then diminishing to 5 to
15 knots late. waves 4 to 7 feet occasionally to 9 feet subsiding
to 2 to 4 feet. 
.tonight...northwest winds 5 to 15 knots becoming south 10 to
20 knots after midnight, then increasing to 15 to 25 knots late.
a slight chance of showers after midnight. waves subsiding to
calm to 2 feet, then building to 3 to 5 feet occasionally to
7 feet. 
.tuesday...south gales to 35 knots becoming southwest 20 to
30 knots late. a slight chance of showers. waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.tuesday night...west winds 15 to 25 knots. waves subsiding to
2 to 4 feet. 
.wednesday...northwest winds 20 to 30 knots backing west by mid
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.wednesday night...northwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. a chance of showers. waves
building to 4 to 7 feet occasionally to 9 feet. 
.thursday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to 2 to 4 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202610052000;;574698

open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon oct 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...

30.3 inch high pressure will move over the great lakes today. behind 
this, a 29.5 inch low drops southeast out of northern canada, 
reaching far northern ontario at 29.5 inches by tuesday evening. 
this brings 29.6 inch troughing over lake superior late on tuesday, 
weakening to 29.7 inches through wednesday. high pressure builds 
back in from the canadian prairies and northern plains late in the 
week, resulting in 30.1 inch ridging over lake superior late 
thursday into friday. a 29.4 inch low will develop off the northern 
rockies late friday and extend a 29.7 to 29.9 inch trough to the 
upper great lakes by saturday night.




lsz267-052000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt mon oct 5 2026

.rest of today...north winds 15 to 25 knots backing northwest in
the afternoon, then diminishing to 10 to 20 knots late. waves
4 to 7 feet occasionally to 9 feet subsiding to 2 to 4 feet. 
.tonight...northwest winds 5 to 15 knots backing south after
midnight, then increasing to 10 to 20 knots late. waves subsiding
to calm to 2 feet, then building to 1 to 3 feet. 
.tuesday...south winds 20 to 30 knots. a chance of showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...southwest winds 20 to 30 knots becoming west
15 to 25 knots after midnight. a slight chance of showers through
midnight. waves subsiding to 2 to 4 feet. 
.wednesday...northwest winds 20 to 30 knots backing west by mid
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.wednesday night...west winds 20 to 30 knots veering northwest
after midnight. showers likely through midnight. a chance of
showers after midnight. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. a chance of showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 2 to 4 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to calm to 2 feet. 

$$