fzus63 kdtx 061342
glflh 
expires:202610062200;;629201

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 am edt tue oct 6 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, drifts over the central
great lakes through tuesday morning. low pressure sliding over
northern ontario results in stronger southwest winds tuesday.
persistent influence of james bay low pressure then maintains
moderate northwesterly winds through thursday.


lhz361-062200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
942 am edt tue oct 6 2026

.rest of today...south winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet late in the afternoon. 
.tonight...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 increasing to 15 to
20 knots early in the afternoon. waves 2 to 4 feet. 
.wednesday night...west winds 10 to 15 knots. a chance of
showers. waves 2 to 4 feet subsiding to 1 to 3 feet by midnight...
then building to 2 to 4 feet after midnight. 
.thursday...northwest winds 15 to 20 knots with gusts to around
30 knots becoming west 5 to 10 knots late in the evening. 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. 
.saturday...southeast winds 5 to 10 knots becoming south 15 to
20 knots. waves 2 feet or less building to 3 to 5 feet. 


$$

fzus63 kdtx 061342
glflh 
expires:202610062200;;629202

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 am edt tue oct 6 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, drifts over the central
great lakes through tuesday morning. low pressure sliding over
northern ontario results in stronger southwest winds tuesday.
persistent influence of james bay low pressure then maintains
moderate northwesterly winds through thursday.


lhz362-363-062200-
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-
942 am edt tue oct 6 2026

.rest of today...south winds 5 to 10 knots increasing to 15 to
20 knots with gusts to around 30 knots. waves 2 feet or less
building to 4 to 6 feet. waves occasionally around 8 feet. 
.tonight...south winds 20 to 25 knots veering to the southwest
early in the morning. gusts to 30 knots. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.wednesday...southwest winds 15 to 20 knots with gusts to around
30 knots becoming west 5 to 10 knots. waves 6 to 9 feet subsiding
to 3 to 5 feet in the late morning and afternoon. waves
occasionally around 12 feet. 
.wednesday night...west winds 10 to 15 knots. a chance of showers
in the evening. waves 2 to 4 feet. 
.thursday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the evening. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.friday...west winds 10 to 15 knots decreasing to 5 to 10 knots
by midnight. waves 1 to 3 feet. 
.saturday...south winds 5 to 10 knots increasing to 20 to
25 knots. waves 1 to 3 feet building to 5 to 7 feet. waves
occasionally around 10 feet. 


$$

fzus63 kdtx 061342
glflh 
expires:202610062200;;629203

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 am edt tue oct 6 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, drifts over the central
great lakes through tuesday morning. low pressure sliding over
northern ontario results in stronger southwest winds tuesday.
persistent influence of james bay low pressure then maintains
moderate northwesterly winds through thursday.


lhz462>464-062200-
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-
942 am edt tue oct 6 2026

.rest of today...south winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. waves 1 to 3 feet. 
.tonight...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. 
.wednesday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and afternoon. waves 4 to 6 feet
subsiding to 1 to 3 feet early in the afternoon. waves
occasionally around 8 feet. 
.wednesday night...west winds 10 to 15 knots. waves 1 to 3 feet. 
.thursday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 3 to 5 feet. 
.friday...west winds 10 to 15 knots. 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. 


$$

fzus63 kmkx 061359
glflm 
expires:202610062115;;629506

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cdt tue oct 6 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...

south to southwest winds will continue to increase to gale
level this afternoon and evening across the northern two thirds of
the lake as low pressure around 29.4 inches tracks across 
northern ontario. gales to 40 kts are expected. as the low 
approaches the hudson bay tonight, a cold front will move down the
lake and turn the winds briefly to the northwest wednesday 
morning. west to northwest winds will settle across the lake into 
thursday as high pressure around 30.1 inches moves into the 
northern plains.


lmz261-362-364-563-062115-
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-
859 am cdt tue oct 6 2026

sturgeon bay wi to point betsie mi north...

...gale warning in effect from 1 pm cdt this afternoon through
this evening...

.rest of today...south winds 15 to 25 kt increasing to gales to
40 kt. slight chance of showers. waves 4 to 6 ft occasionally to
8 ft building to 8 to 12 ft occasionally to 16 ft. 
.tonight...southwest gales to 40 kt becoming west gales to 35 kt
after midnight, then becoming northwest 10 to 20 kt late. slight
chance of showers in the evening. 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 southwest.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday night...west winds 15 to 25 kt becoming northwest.
waves 2 to 4 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 2 to 4 ft subsiding to 1 to 2 ft. 
.friday...west winds 10 to 20 kt increasing to 15 to 25 kt. waves
1 to 3 ft. 
.saturday...south winds 15 to 25 kt. waves 4 to 7 ft occasionally
to 9 ft building to 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 061359
glflm 
expires:202610062115;;629507

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cdt tue oct 6 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...

south to southwest winds will continue to increase to gale
level this afternoon and evening across the northern two thirds of
the lake as low pressure around 29.4 inches tracks across 
northern ontario. gales to 40 kts are expected. as the low 
approaches the hudson bay tonight, a cold front will move down the
lake and turn the winds briefly to the northwest wednesday 
morning. west to northwest winds will settle across the lake into 
thursday as high pressure around 30.1 inches moves into the 
northern plains.


lmz366-565-567-669-868-870-062115-
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-
859 am cdt tue oct 6 2026

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

...gale warning in effect from 1 pm cdt this afternoon through
this evening...

.rest of today...south winds 10 to 20 kt increasing to gales to
35 kt. waves 4 to 6 ft occasionally to 8 ft building to 7 to
10 ft occasionally to 13 ft. 
.tonight...southwest gales to 35 kt diminishing to 30 kt late in
the evening, then becoming southwest to 30 kt after midnight and
becoming west 15 to 25 kt late. waves 7 to 10 ft occasionally to
13 ft subsiding to 4 to 7 ft occasionally to 9 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 15 to 25 kt becoming northwest.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.thursday...northwest winds 15 to 25 kt diminishing to 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 2 to 4 ft. 
.friday...west winds 10 to 20 kt. waves 1 to 3 ft. 
.saturday...south winds to 30 kt. waves 6 to 9 ft occasionally to
12 ft building to 7 to 10 ft occasionally to 13 ft.  

$$

fzus63 kmkx 061359
glflm 
expires:202610062115;;629508

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cdt tue oct 6 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...

south to southwest winds will continue to increase to gale
level this afternoon and evening across the northern two thirds of
the lake as low pressure around 29.4 inches tracks across 
northern ontario. gales to 40 kts are expected. as the low 
approaches the hudson bay tonight, a cold front will move down the
lake and turn the winds briefly to the northwest wednesday 
morning. west to northwest winds will settle across the lake into 
thursday as high pressure around 30.1 inches moves into the 
northern plains.


lmz080-671-673-675-777-779-872-874-876-878-062115-
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-
859 am cdt tue oct 6 2026

port washington wi to whitehall mi south...

.rest of today...south winds 10 to 20 kt increasing to 30 kt.
waves 3 to 5 ft building to 6 to 9 ft occasionally to 12 ft. 
.tonight...south winds to 30 kt becoming west 15 to 25 kt. waves
6 to 9 ft occasionally to 12 ft. 
.wednesday...west winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 1 to 3 ft. 
.wednesday night...west winds 15 to 25 kt becoming northwest.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.thursday...northwest winds 10 to 20 kt. waves 4 to 7 ft
occasionally to 9 ft. 
.thursday night...northwest winds 10 to 20 kt becoming west 10 to
15 kt. waves 2 to 4 ft. 
.friday...west winds 10 to 20 kt becoming southwest. waves 1 to
3 ft. 
.saturday...south winds to 30 kt. waves 6 to 9 ft occasionally to
12 ft.  

$$

fzus63 kmqt 061403
glfls 
expires:202610062000;;629656

open lake forecast for lake superior
national weather service marquette mi
1002 am edt tue oct 6 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 29.5 inch low moving over far northern ontario at 29.4 inches this 
evening will bring 29.6 inch troughing over lake superior this 
afternoon. troughing will weaken to 29.7 inches over the lake 
through wednesday. high pressure builds in from the canadian 
prairies and northern plains late in the work week, with 30.0 inch 
ridging over lake superior on thursday strengthening to 30.1 inches 
on friday. a 29.4 inch clipper low then develops off the northern 
rockies late friday and extends a 29.6 to 29.9 inch trough into the 
upper great lakes by saturday.




lsz162-062000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1002 am edt tue oct 6 2026 /902 am cdt tue oct 6 2026/

.rest of today...south winds 15 to 25 knots veering west late.
waves 1 to 3 feet. 
.tonight...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 in the afternoon. a slight chance of showers by mid
afternoon. waves building to 2 to 4 feet. 
.wednesday night...northwest winds 10 to 20 knots. waves
subsiding to 1 to 3 feet. 
.thursday...west winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.thursday night...west winds 5 to 15 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 061403
glfls 
expires:202610062000;;629657

open lake forecast for lake superior
national weather service marquette mi
1002 am edt tue oct 6 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 29.5 inch low moving over far northern ontario at 29.4 inches this 
evening will bring 29.6 inch troughing over lake superior this 
afternoon. troughing will weaken to 29.7 inches over the lake 
through wednesday. high pressure builds in from the canadian 
prairies and northern plains late in the work week, with 30.0 inch 
ridging over lake superior on thursday strengthening to 30.1 inches 
on friday. a 29.4 inch clipper low then develops off the northern 
rockies late friday and extends a 29.6 to 29.9 inch trough into the 
upper great lakes by saturday.




lsz263-062000-
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-
1002 am edt tue oct 6 2026

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

$$

fzus63 kmqt 061403
glfls 
expires:202610062000;;629658

open lake forecast for lake superior
national weather service marquette mi
1002 am edt tue oct 6 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 29.5 inch low moving over far northern ontario at 29.4 inches this 
evening will bring 29.6 inch troughing over lake superior this 
afternoon. troughing will weaken to 29.7 inches over the lake 
through wednesday. high pressure builds in from the canadian 
prairies and northern plains late in the work week, with 30.0 inch 
ridging over lake superior on thursday strengthening to 30.1 inches 
on friday. a 29.4 inch clipper low then develops off the northern 
rockies late friday and extends a 29.6 to 29.9 inch trough into the 
upper great lakes by saturday.




lsz264-062000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1002 am edt tue oct 6 2026

.rest of today...south winds 15 to 25 knots becoming west 10 to
20 knots late. a chance of showers. waves 3 to 6 feet
occasionally to 8 feet subsiding to 2 to 4 feet. 
.tonight...west winds 10 to 20 knots. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.wednesday...west winds 15 to 25 knots increasing to 20 to
30 knots late. a chance of showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.wednesday night...northwest winds 15 to 25 knots. a slight
chance of showers. waves 3 to 6 feet occasionally to 8 feet. 
.thursday...northwest winds 15 to 25 knots backing west by mid
afternoon. a slight chance of showers through early afternoon.
waves subsiding to 2 to 4 feet. 
.thursday night...west winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.friday...west winds 5 to 15 knots becoming southeast 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 
.saturday...southeast gales to 35 knots becoming southwest 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 061403
glfls 
expires:202610062000;;629659

open lake forecast for lake superior
national weather service marquette mi
1002 am edt tue oct 6 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 29.5 inch low moving over far northern ontario at 29.4 inches this 
evening will bring 29.6 inch troughing over lake superior this 
afternoon. troughing will weaken to 29.7 inches over the lake 
through wednesday. high pressure builds in from the canadian 
prairies and northern plains late in the work week, with 30.0 inch 
ridging over lake superior on thursday strengthening to 30.1 inches 
on friday. a 29.4 inch clipper low then develops off the northern 
rockies late friday and extends a 29.6 to 29.9 inch trough into the 
upper great lakes by saturday.




lsz265-062000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1002 am edt tue oct 6 2026

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

$$

fzus63 kmqt 061403
glfls 
expires:202610062000;;629660

open lake forecast for lake superior
national weather service marquette mi
1002 am edt tue oct 6 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 29.5 inch low moving over far northern ontario at 29.4 inches this 
evening will bring 29.6 inch troughing over lake superior this 
afternoon. troughing will weaken to 29.7 inches over the lake 
through wednesday. high pressure builds in from the canadian 
prairies and northern plains late in the work week, with 30.0 inch 
ridging over lake superior on thursday strengthening to 30.1 inches 
on friday. a 29.4 inch clipper low then develops off the northern 
rockies late friday and extends a 29.6 to 29.9 inch trough into the 
upper great lakes by saturday.




lsz266-062000-
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-
1002 am edt tue oct 6 2026

...gale warning in effect until 3 pm edt this afternoon...

.rest of today...south gales to 35 knots diminishing to 20 to
30 knots late. a chance of showers. waves 5 to 8 feet
occasionally to 10 feet subsiding to 3 to 5 feet occasionally to
7 feet. 
.tonight...west winds 15 to 25 knots becoming northwest 20 to
30 knots late. waves subsiding to 2 to 4 feet. 
.wednesday...west winds 20 to 30 knots. a slight chance of
showers. waves building to 3 to 6 feet occasionally to 8 feet. 
.wednesday night...northwest winds 20 to 30 knots. a slight
chance of thunderstorms through midnight. a chance of showers.
waves building to 4 to 7 feet occasionally to 9 feet. 
.thursday...northwest winds 20 to 30 knots. a chance of showers.
waves 4 to 7 feet occasionally to 9 feet. 
.thursday night...west winds 15 to 25 knots veering northwest
after midnight. waves subsiding to 2 to 4 feet. 
.friday...northwest winds 10 to 20 knots becoming south 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 
.saturday...south gales to 35 knots. waves building to 5 to
9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 061403
glfls 
expires:202610062000;;629661

open lake forecast for lake superior
national weather service marquette mi
1002 am edt tue oct 6 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 29.5 inch low moving over far northern ontario at 29.4 inches this 
evening will bring 29.6 inch troughing over lake superior this 
afternoon. troughing will weaken to 29.7 inches over the lake 
through wednesday. high pressure builds in from the canadian 
prairies and northern plains late in the work week, with 30.0 inch 
ridging over lake superior on thursday strengthening to 30.1 inches 
on friday. a 29.4 inch clipper low then develops off the northern 
rockies late friday and extends a 29.6 to 29.9 inch trough into the 
upper great lakes by saturday.




lsz267-062000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1002 am edt tue oct 6 2026

.rest of today...south winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible in the
afternoon, then diminishing to 20 to 30 knots late. a slight
chance of showers. waves 3 to 6 feet occasionally to 8 feet, then
subsiding to 3 to 5 feet occasionally to 7 feet. 
.tonight...southwest winds 15 to 25 knots veering northwest late.
a slight chance of showers through midnight. waves subsiding to
1 to 3 feet, then building to 2 to 4 feet. 
.wednesday...northwest winds 15 to 25 knots becoming west 20 to
30 knots in the afternoon. a chance of showers. waves building to
3 to 5 feet occasionally to 7 feet. 
.wednesday night...northwest winds 20 to 30 knots. a slight
chance of thunderstorms through midnight. a chance of showers.
waves building to 4 to 7 feet occasionally to 9 feet. 
.thursday...northwest winds 20 to 30 knots. a chance of showers.
waves building to 4 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...west winds 10 to 20 knots backing south. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.saturday...south winds 15 to 25 knots increasing to 20 to
30 knots. waves building to 4 to 7 feet occasionally to 9 feet. 

$$