fzus63 kdtx 051945
glflh 
expires:202610060345;;589388

open lake forecast for lake huron
national weather service detroit/pontiac mi
345 pm 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.


lhz361-060345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
345 pm edt mon oct 5 2026

.tonight...northwest winds 15 to 20 knots early in the evening
decreasing to 10 to 15 knots...then becoming north 5 to 10 knots
after midnight becoming light and variable. 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 increasing to 15 to
20 knots by midnight...then becoming southwest 10 to 15 knots
after midnight. waves 3 to 5 feet. 
.wednesday...west winds 10 to 15 knots increasing to 15 to
20 knots early in the afternoon. waves 2 to 4 feet. 
.wednesday night...west winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet by midnight...then building to 2 to
4 feet after midnight. 
.thursday...west winds 15 to 20 knots with gusts to around
30 knots becoming northwest 10 to 15 knots late in the evening.
waves 3 to 5 feet subsiding to 1 to 3 feet late in the evening. 
.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. 
.saturday...south winds 5 to 10 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet by midnight. 


$$

fzus63 kdtx 051945
glflh 
expires:202610060345;;589389

open lake forecast for lake huron
national weather service detroit/pontiac mi
345 pm 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.


lhz362-363-060345-
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-
345 pm edt mon oct 5 2026

.tonight...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. 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
late in the morning...then increasing to 10 to 15 knots early in
the afternoon increasing to 15 to 20 knots late in the afternoon.
waves 1 to 3 feet building to 4 to 6 feet late in the afternoon.
waves occasionally around 8 feet. 
.tuesday night...south winds 20 to 25 knots with gusts to around
30 knots. a chance of rain in the evening. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and afternoon. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.wednesday night...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 10 to 15 knots late in the evening. waves
3 to 5 feet. 
.friday...west winds 10 to 15 knots. waves 1 to 3 feet. 
.saturday...west winds 5 to 10 knots backing to the southeast in
the late morning and early afternoon...then increasing to 10 to
15 knots early in the evening becoming south 20 to 25 knots by
midnight. waves 1 to 3 feet building to 3 to 5 feet by midnight. 


$$

fzus63 kdtx 051945
glflh 
expires:202610060345;;589390

open lake forecast for lake huron
national weather service detroit/pontiac mi
345 pm 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>464-060345-
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-
345 pm edt mon oct 5 2026

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


$$

fzus63 kmkx 051946
glflm 
expires:202610060330;;589399

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
246 pm 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...

light and variable winds expected into early evening as high
pressure exits the region eastward. winds then turn south into
tonight. 

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 and become gusty. a gale 
warning is in effect tuesday afternoon and evening for the north 
half of the lake, north of a port washington wi to whitehall mi 
line, with southwest gales to 40 kt expected. the low will pull a 
cold front across the waters late tuesday night into wednesday 
shifting winds to the west-northwest.


lmz261-362-364-563-060330-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
246 pm cdt mon oct 5 2026

sturgeon bay wi to point betsie mi north...

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

.tonight...northeast winds 10 to 15 kt veering to south 10 to
20 kt. chance of rain showers overnight. waves 1 to 2 ft building
to 2 to 4 ft. 
.tuesday...south winds 15 to 25 kt becoming southwest gales to
40 kt. slight chance of rain showers. waves 4 to 7 ft
occasionally to 9 ft building to 8 to 12 ft occasionally to
16 ft. 
.tuesday night...southwest gales to 40 kt becoming west to 30 kt
after midnight, then diminishing to 10 to 20 kt late. waves 8 to
12 ft occasionally to 16 ft subsiding to 4 to 7 ft occasionally
to 9 ft. 
.wednesday...northwest winds 10 to 20 kt becoming west 15 to
25 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday night...northwest winds 10 to 20 kt increasing to
15 to 25 kt. waves 1 to 3 ft building to 3 to 5 ft. 
.thursday...northwest winds 15 to 25 kt. waves 3 to 5 ft. 
.thursday night...northwest winds 15 to 25 kt becoming west 10 to
15 kt. waves 1 to 3 ft. 
.friday...west winds 10 to 20 kt increasing to 15 to 25 kt. waves
1 to 3 ft. 
.saturday...southeast winds 15 to 25 kt becoming south. waves
2 to 4 ft building to 3 to 5 ft.  

$$

fzus63 kmkx 051946
glflm 
expires:202610060330;;589400

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
246 pm 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...

light and variable winds expected into early evening as high
pressure exits the region eastward. winds then turn south into
tonight. 

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 and become gusty. a gale 
warning is in effect tuesday afternoon and evening for the north 
half of the lake, north of a port washington wi to whitehall mi 
line, with southwest gales to 40 kt expected. the low will pull a 
cold front across the waters late tuesday night into wednesday 
shifting winds to the west-northwest.


lmz366-565-567-669-868-870-060330-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
246 pm cdt mon oct 5 2026

sturgeon bay wi to point betsie mi south to port washington wi to
whitehall mi...

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

.tonight...east winds 5 to 10 kt becoming southeast late this
evening, then becoming south after midnight increasing to 10 to
20 kt late. waves 1 to 3 ft building to 2 to 4 ft. 
.tuesday...south winds 15 to 25 kt increasing to gales to 40 kt.
slight chance of showers in the morning. waves 4 to 7 ft
occasionally to 9 ft building to 10 to 14 ft occasionally to
18 ft. 
.tuesday night...southwest gales to 35 kt, diminishing to 30 kt 
by midnight, becoming west 15 to 25 kt late. waves 10 to 14 ft 
occasionally to 18 ft subsiding to 6 to 9 ft occasionally to 12 
ft. 
.wednesday...northwest winds 10 to 20 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 diminishing to 10 to
20 kt. waves 3 to 5 ft. 
.thursday night...northwest winds 10 to 20 kt becoming west 10 to
15 kt. waves 1 to 3 ft. 
.friday...west winds 10 to 20 kt. waves 1 to 3 ft. 
.saturday...south winds to 30 kt. waves 4 to 6 ft occasionally to
8 ft building to 4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmkx 051946
glflm 
expires:202610060330;;589401

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
246 pm 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...

light and variable winds expected into early evening as high
pressure exits the region eastward. winds then turn south into
tonight. 

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 and become gusty. a gale 
warning is in effect tuesday afternoon and evening for the north 
half of the lake, north of a port washington wi to whitehall mi 
line, with southwest gales to 40 kt expected. the low will pull a 
cold front across the waters late tuesday night into wednesday 
shifting winds to the west-northwest.


lmz080-671-673-675-777-779-872-874-876-878-060330-
lake michigan from michigan city in to st. joseph mi 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 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-
246 pm cdt mon oct 5 2026

port washington wi to whitehall mi south...

.tonight...northeast winds 5 to 10 kt becoming east late this
evening, then becoming southeast 10 to 15 kt after midnight
becoming south 10 to 20 kt late. waves 2 to 4 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft building to 8 to 11 ft
occasionally to 14 ft. 
.tuesday night...south winds to 30 kt becoming southwest 15 to
25 kt. waves 8 to 11 ft occasionally to 14 ft subsiding to 7 to
10 ft occasionally to 13 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. waves 4 to 6 ft
occasionally to 8 ft. 
.thursday night...northwest winds 10 to 20 kt becoming west 10 to
15 kt. waves 1 to 3 ft. 
.friday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft. 
.saturday...southeast winds to 30 kt becoming south. waves 4 to
7 ft occasionally to 9 ft.  

$$

fzus63 kmqt 052002
glfls 
expires:202610060800;;589799

open lake forecast for lake superior
national weather service marquette mi
401 pm 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...

30.2 inch high pressure over lake superior this afternoon will shift 
east to the lower great lakes tonight. behind this, a 29.5 inch low 
drops southeast out of northern canada, reaching far northern 
ontario at 29.4 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 to 30.2 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.




lsz162-060800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt mon oct 5 2026 /301 pm cdt mon oct 5 2026/

.late this afternoon...southeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...southeast winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then becoming south 10 to 20 knots 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 1 to
3 feet. 
.tuesday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 10 to 20 knots increasing to 20 to
30 knots by mid afternoon. waves building to 1 to 3 feet. 
.wednesday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...west winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.thursday night...west winds 10 to 20 knots. waves calm to
2 feet. 
.friday...west winds 5 to 15 knots becoming southeast 10 to
20 knots. waves building to 1 to 3 feet. 
.saturday...southeast winds 20 to 30 knots veering southwest.
waves building to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 052002
glfls 
expires:202610060800;;589800

open lake forecast for lake superior
national weather service marquette mi
401 pm 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...

30.2 inch high pressure over lake superior this afternoon will shift 
east to the lower great lakes tonight. behind this, a 29.5 inch low 
drops southeast out of northern canada, reaching far northern 
ontario at 29.4 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 to 30.2 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.




lsz263-060800-
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 oct 5 2026

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

$$

fzus63 kmqt 052002
glfls 
expires:202610060800;;589801

open lake forecast for lake superior
national weather service marquette mi
401 pm 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...

30.2 inch high pressure over lake superior this afternoon will shift 
east to the lower great lakes tonight. behind this, a 29.5 inch low 
drops southeast out of northern canada, reaching far northern 
ontario at 29.4 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 to 30.2 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.




lsz264-060800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt mon oct 5 2026

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

$$

fzus63 kmqt 052002
glfls 
expires:202610060800;;589802

open lake forecast for lake superior
national weather service marquette mi
401 pm 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...

30.2 inch high pressure over lake superior this afternoon will shift 
east to the lower great lakes tonight. behind this, a 29.5 inch low 
drops southeast out of northern canada, reaching far northern 
ontario at 29.4 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 to 30.2 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.




lsz265-060800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt mon oct 5 2026

.late this afternoon...northwest winds 5 to 15 knots. 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 20 to 30 knots late.
waves building to 2 to 4 feet. 
.tuesday...south winds to 30 knots with a few gale force gusts to
35 knots possible diminishing to 20 to 30 knots in the afternoon,
then becoming southwest 15 to 25 knots late. a slight chance of
showers through early afternoon. 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 30 knots
with a few gale force gusts to 35 knots possible after midnight.
waves building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...west gales to 35 knots. waves building to 3 to
6 feet occasionally to 8 feet. 
.wednesday night...northwest gales to 35 knots. a chance of
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet,
then building to 4 to 7 feet occasionally to 9 feet. 
.thursday...northwest gales to 35 knots becoming west gales to
40 knots by mid afternoon. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.thursday night...west winds 15 to 25 knots. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.friday...northwest winds 15 to 25 knots becoming south 10 to
20 knots. waves subsiding to calm to 2 feet. 
.saturday...southeast gales to 35 knots veering south. waves
building to 5 to 8 feet occasionally to 10 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 052002
glfls 
expires:202610060800;;589803

open lake forecast for lake superior
national weather service marquette mi
401 pm 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...

30.2 inch high pressure over lake superior this afternoon will shift 
east to the lower great lakes tonight. behind this, a 29.5 inch low 
drops southeast out of northern canada, reaching far northern 
ontario at 29.4 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 to 30.2 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.




lsz266-060800-
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 oct 5 2026

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

.late this afternoon...northwest winds 5 to 15 knots. waves 2 to
4 feet. 
.tonight...southeast winds 5 to 15 knots becoming south 10 to
20 knots after midnight, then increasing to 20 to 30 knots late.
waves subsiding to calm to 2 feet, then building to 2 to 4 feet. 
.tuesday...south gales to 35 knots diminishing to 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 6 feet
occasionally to 8 feet. 
.tuesday night...west winds 15 to 25 knots increasing to 20 to
30 knots after midnight. waves subsiding to 2 to 4 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...northwest winds 20 to 30 knots becoming west gales
to 35 knots by mid afternoon. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.wednesday night...northwest winds 20 to 30 knots. a chance of
showers. waves building to 5 to 8 feet occasionally to 10 feet. 
.thursday...northwest gales to 40 knots. a chance of showers
through early afternoon. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.thursday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. a chance of showers. waves
subsiding to 1 to 3 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.saturday...southeast gales to 35 knots veering south. a chance
of showers. waves building to 5 to 9 feet occasionally to
11 feet. 

$$

fzus63 kmqt 052002
glfls 
expires:202610060800;;589804

open lake forecast for lake superior
national weather service marquette mi
401 pm 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...

30.2 inch high pressure over lake superior this afternoon will shift 
east to the lower great lakes tonight. behind this, a 29.5 inch low 
drops southeast out of northern canada, reaching far northern 
ontario at 29.4 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 to 30.2 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.




lsz267-060800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt mon oct 5 2026

.late this afternoon...northwest winds 10 to 20 knots. waves 3 to
5 feet occasionally to 7 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 increasing to 30 knots with
a few gale force gusts to 35 knots possible in the afternoon. a
chance of showers. waves building to 3 to 6 feet occasionally to
8 feet. 
.tuesday night...southwest winds 20 to 30 knots veering northwest
late. a slight chance of showers through midnight. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...northwest winds 20 to 30 knots backing west by mid
afternoon. waves building to 4 to 8 feet occasionally to 10 feet.
.wednesday night...northwest winds 20 to 30 knots. showers likely
through midnight, then a chance of showers after midnight. waves
subsiding to 3 to 6 feet occasionally to 8 feet, then building to
4 to 7 feet occasionally to 9 feet. 
.thursday...northwest winds 20 to 30 knots increasing to gales to
35 knots by mid afternoon. a chance of showers. waves building to
7 to 10 feet occasionally to 13 feet, then subsiding to 5 to
8 feet occasionally to 10 feet. 
.thursday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. a chance of showers. waves
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. 
.saturday...southeast winds 15 to 25 knots becoming south 20 to
30 knots. waves building to 4 to 7 feet occasionally to 9 feet. 

$$