fzus63 kdtx 170142
glflh 
expires:202610171000;;226036

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 pm edt fri oct 16 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...northerly gales begin to subside after midnight. a
ridge of high pressure passes across the central great lakes
saturday morning then settles across the ohio valley on sunday.
this produces gusty westerly winds on sunday as deep low pressure
tracks across northern ontario. the high pressure builds
northward into the great lakes early next week.


lhz361-171000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
942 pm edt fri oct 16 2026

...gale warning in effect until 4 am edt saturday...

.rest of tonight...north winds 20 to 25 knots with gusts to
35 knot gales decreasing to 10 to 15 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.saturday...northwest winds 5 to 10 knots backing to the west
late in the morning...then becoming southwest 10 to 15 knots
early in the afternoon becoming west 15 to 20 knots with gusts to
around 30 knots late in the afternoon. waves 1 to 3 feet building
to 3 to 5 feet late in the afternoon. 
.saturday night...southwest winds 15 to 20 knots. gusts to
30 knots early in the evening. waves 3 to 5 feet. 
.sunday...southwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots early in the afternoon.
waves 3 to 5 feet. 
.sunday night...southwest winds 10 to 15 knots. waves 2 to
4 feet. 
.monday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then becoming light and variable
late in the afternoon. waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 
.wednesday...light and variable winds becoming southeast 5 to
10 knots. waves 2 feet or less. 


$$

fzus63 kdtx 170142
glflh 
expires:202610171000;;226037

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 pm edt fri oct 16 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...northerly gales begin to subside after midnight. a
ridge of high pressure passes across the central great lakes
saturday morning then settles across the ohio valley on sunday.
this produces gusty westerly winds on sunday as deep low pressure
tracks across northern ontario. the high pressure builds
northward into the great lakes early next week.


lhz362-363-171000-
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 pm edt fri oct 16 2026

...gale warning in effect until 4 am edt saturday...

.rest of tonight...north winds to 30 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots. waves 10 to 14 feet. waves
occasionally around 18 feet. 
.saturday...north winds 10 to 15 knots becoming northwest 5 to
10 knots late in the morning...then backing to the west early in
the afternoon becoming southwest 10 to 15 knots late in the
afternoon. waves 4 to 6 feet subsiding to 1 to 3 feet early in
the afternoon...then building to 2 to 4 feet late in the
afternoon. waves occasionally around 8 feet. 
.saturday night...southwest winds 15 to 20 knots. waves 4 to
6 feet. 
.sunday...southwest winds 20 to 25 knots with gusts to 35 knot
gales. waves 6 to 9 feet. waves occasionally around 12 feet. 
.sunday night...south winds 20 to 25 knots with gusts to 35 knot
gales becoming southwest 10 to 15 knots. waves 8 to 12 feet
subsiding to 4 to 6 feet after midnight. waves occasionally
around 15 feet. 
.monday...southwest winds 10 to 15 knots in the morning
decreasing to 5 to 10 knots...then backing to the south late in
the afternoon becoming light and variable. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.tuesday...light and variable winds becoming east 5 to 10 knots
by midnight. waves 2 feet or less. 
.wednesday...southeast winds 5 to 10 knots. waves 2 feet or less.


$$

fzus63 kdtx 170142
glflh 
expires:202610171000;;226038

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 pm edt fri oct 16 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...northerly gales begin to subside after midnight. a
ridge of high pressure passes across the central great lakes
saturday morning then settles across the ohio valley on sunday.
this produces gusty westerly winds on sunday as deep low pressure
tracks across northern ontario. the high pressure builds
northward into the great lakes early next week.


lhz462>464-171000-
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 pm edt fri oct 16 2026

...gale warning in effect until 4 am edt saturday...

.rest of tonight...north at 35 knot gales decreasing to 20 to
25 knots. a chance of rain this evening. waves 12 to 16 feet.
waves occasionally around 20 feet. 
.saturday...north winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming west 5 to 10 knots
in the afternoon. waves 6 to 9 feet subsiding to 3 to 5 feet in
the afternoon. waves occasionally around 12 feet. 
.saturday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. waves 2 to
4 feet. 
.sunday...southwest winds 15 to 20 knots. waves 3 to 5 feet. 
.sunday night...southwest winds 15 to 20 knots decreasing to
10 to 15 knots after midnight. waves 3 to 5 feet. 
.monday...southwest winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.tuesday...light and variable winds becoming northeast 5 to
10 knots. waves 2 feet or less. 
.wednesday...east winds 5 to 10 knots until afternoon becoming
light and variable...then becoming east 5 to 10 knots by
midnight. waves 2 feet or less. 


$$

fzus63 kmkx 170251
glflm 
expires:202610170930;;228367

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
951 pm cdt fri oct 16 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 29.4 inches will continue to move well east
of the region tonight, as strong high pressure around 30.6
inches remains over the central plains. north gales are expected
to linger over the next few hours over the southern half of lake 
michigan, quickly tapering off into early saturday morning. a 
gale warning remains in effect for all of the open waters of lake 
michigan until 1 am cdt saturday morning. scattered showers will 
linger into early saturday morning over the southern half of lake 
michigan. a few rumbles of thunder and some isolated waterspout 
potential will reamin over the south half of lake michigan.

as the high shifts toward the ohio river valley on saturday, 
strong low pressure around 29.0 inches will develop in south 
central canada, shifting toward and into hudson bay on sunday. 
this may bring southwest gales to far northern portions of lake 
michigan saturday night into sunday night. 

high pressure around 30.5 inches should develop east northeast
of the region next week, bringing dry conditions and light to
modest winds.


lmz080-669-671-673-675-777-779-870-872-874-876-878-170930-
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-
951 pm cdt fri oct 16 2026

sheboygan wi to pentwater mi south...

...gale warning in effect until 1 am cdt saturday...

.rest of tonight...north gales to 40 kt diminishing to 15 to
25 kt. slight chance of waterspouts. scattered rain showers late
this evening, then isolated rain showers overnight. waves 15 to
20 ft occasionally to 26 ft subsiding to 8 to 12 ft occasionally
to 16 ft. 
.saturday...north winds 10 to 20 kt backing to southwest 15 to
25 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to
5 ft. 
.saturday night...southwest winds 15 to 25 kt increasing to
30 kt. waves 4 to 7 ft occasionally to 9 ft building to 6 to 9 ft
occasionally to 12 ft. 
.sunday...southwest winds to 30 kt increasing to gales to 35 kt.
waves 8 to 12 ft occasionally to 16 ft. 
.sunday night...south winds to 30 kt becoming southwest 15 to
25 kt. waves 8 to 11 ft occasionally to 14 ft subsiding to 5 to
8 ft occasionally to 10 ft. 
.monday...southwest winds 10 to 20 kt becoming south. waves 3 to
5 ft subsiding to 2 to 4 ft. 
.monday night...south winds 10 to 15 kt diminishing to less than
10 kt. waves 1 to 2 ft. 
.tuesday...east winds 5 to 10 kt diminishing to less than 10 kt.
waves 1 ft or less. 
.wednesday...southeast winds 10 to 15 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 170251
glflm 
expires:202610170930;;228366

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
951 pm cdt fri oct 16 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 29.4 inches will continue to move well east
of the region tonight, as strong high pressure around 30.6
inches remains over the central plains. north gales are expected
to linger over the next few hours over the southern half of lake 
michigan, quickly tapering off into early saturday morning. a 
gale warning remains in effect for all of the open waters of lake 
michigan until 1 am cdt saturday morning. scattered showers will 
linger into early saturday morning over the southern half of lake 
michigan. a few rumbles of thunder and some isolated waterspout 
potential will reamin over the south half of lake michigan.

as the high shifts toward the ohio river valley on saturday, 
strong low pressure around 29.0 inches will develop in south 
central canada, shifting toward and into hudson bay on sunday. 
this may bring southwest gales to far northern portions of lake 
michigan saturday night into sunday night. 

high pressure around 30.5 inches should develop east northeast
of the region next week, bringing dry conditions and light to
modest winds.


lmz261-362-364-366-563-565-567-868-170930-
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-
951 pm cdt fri oct 16 2026

sheboygan wi to pentwater mi north...

...gale warning in effect until 1 am cdt saturday...

.rest of tonight...north gales to 35 kt becoming northwest 10 to
20 kt. waves 10 to 14 ft occasionally to 18 ft subsiding to 4 to
7 ft occasionally to 9 ft. 
.saturday...west winds 10 to 20 kt increasing to 15 to 25 kt late
in the morning, then becoming southwest to 30 kt in the
afternoon. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.saturday night...southwest gales to 35 kt. waves 6 to 9 ft
occasionally to 12 ft building to 8 to 11 ft occasionally to
14 ft. 
.sunday...southwest gales to 40 kt. waves 10 to 14 ft
occasionally to 18 ft. 
.sunday night...southwest gales to 40 kt diminishing to gales to
35 kt. waves 8 to 12 ft occasionally to 16 ft subsiding to 7 to
10 ft occasionally to 13 ft. 
.monday...southwest winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.monday night...southwest winds 10 to 15 kt diminishing to less
than 10 kt. waves 1 to 3 ft. 
.tuesday...southeast winds 5 to 10 kt. waves 1 ft or less. 
.wednesday...south winds 10 to 15 kt. waves 1 to 2 ft.  

$$

fzus63 kmqt 170201
glfls 
expires:202610170800;;226407

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt fri oct 16 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 30.6 inch high over the plains extends 30.3 to 30.4 inch ridging 
over lake superior tonight. the high then slides south of the great 
lakes at 30.5 inches by saturday night as a 29.2 inch alberta 
clipper moves through the northern canadian prairie provinces 
towards hudson bay, deepening to 29.0 inches by the time it arrives 
at hudson bay on sunday. this brings weak 30.0 inch troughing to 
northern lake superior on sunday. as the low continues east over 
hudson bay and weakens with time sunday night into monday afternoon, 
high pressure ridging of 30.3 inches returns to the upper great 
lakes by monday. the high pressure ridging strengthens to 30.4 
inches over lake superior by tuesday as the now 30.5 inch parent 
high over northern ontario continues east into northern quebec. as 
the high continues to retreat eastward, the ridging over lake 
superior may potentially weaken to 30.2 inches by wednesday. 




lsz264-170800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt fri oct 16 2026

.rest of tonight...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight, then becoming west 15 to 25 knots
late. waves 3 to 6 feet occasionally to 8 feet subsiding to 1 to
3 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.saturday...west 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. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.saturday night...southwest winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 40 knots possible after
midnight. waves subsiding to 5 to 8 feet occasionally to 10 feet,
then building to 9 to 12 feet occasionally to 15 feet. 
.sunday...southwest gales to 40 knots. waves building to 10 to
14 feet occasionally to 18 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet. 
.sunday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.monday...northwest winds 5 to 15 knots diminishing to less than
10 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...south winds less than 10 knots backing east after
midnight. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots veering south. waves calm to
2 feet. 
.wednesday...south winds 5 to 15 knots becoming southwest 10 to
20 knots. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202610170800;;226408

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt fri oct 16 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 30.6 inch high over the plains extends 30.3 to 30.4 inch ridging 
over lake superior tonight. the high then slides south of the great 
lakes at 30.5 inches by saturday night as a 29.2 inch alberta 
clipper moves through the northern canadian prairie provinces 
towards hudson bay, deepening to 29.0 inches by the time it arrives 
at hudson bay on sunday. this brings weak 30.0 inch troughing to 
northern lake superior on sunday. as the low continues east over 
hudson bay and weakens with time sunday night into monday afternoon, 
high pressure ridging of 30.3 inches returns to the upper great 
lakes by monday. the high pressure ridging strengthens to 30.4 
inches over lake superior by tuesday as the now 30.5 inch parent 
high over northern ontario continues east into northern quebec. as 
the high continues to retreat eastward, the ridging over lake 
superior may potentially weaken to 30.2 inches by wednesday. 




lsz265-170800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt fri oct 16 2026

.rest of tonight...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight, then becoming west 15 to 25 knots
late. waves 5 to 8 feet occasionally to 10 feet subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.saturday...west winds 20 to 30 knots becoming southwest 15 to
25 knots late. waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 2 to 4 feet. 
.saturday night...southwest winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible late.
waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday...southwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 1 to 3 feet. 
.sunday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.monday...west winds 5 to 15 knots veering northeast by mid
afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots veering southeast after
midnight. waves calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots becoming south 10 to
20 knots. waves calm to 2 feet. 
.wednesday...south winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202610170800;;226409

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt fri oct 16 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 30.6 inch high over the plains extends 30.3 to 30.4 inch ridging 
over lake superior tonight. the high then slides south of the great 
lakes at 30.5 inches by saturday night as a 29.2 inch alberta 
clipper moves through the northern canadian prairie provinces 
towards hudson bay, deepening to 29.0 inches by the time it arrives 
at hudson bay on sunday. this brings weak 30.0 inch troughing to 
northern lake superior on sunday. as the low continues east over 
hudson bay and weakens with time sunday night into monday afternoon, 
high pressure ridging of 30.3 inches returns to the upper great 
lakes by monday. the high pressure ridging strengthens to 30.4 
inches over lake superior by tuesday as the now 30.5 inch parent 
high over northern ontario continues east into northern quebec. as 
the high continues to retreat eastward, the ridging over lake 
superior may potentially weaken to 30.2 inches by wednesday. 




lsz266-170800-
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 pm edt fri oct 16 2026

.rest of tonight...north winds 20 to 30 knots becoming northwest
10 to 20 knots after midnight, then backing west late. waves 7 to
10 feet occasionally to 13 feet subsiding to 2 to 4 feet. 
.saturday...west winds 20 to 30 knots backing southwest late.
waves building to 8 to 11 feet occasionally to 14 feet, then
subsiding to 6 to 9 feet occasionally to 11 feet. 
.saturday night...southwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. waves subsiding to 4 to 7 feet
occasionally to 9 feet, then building to 7 to 10 feet
occasionally to 13 feet. 
.sunday...southwest winds 20 to 30 knots. waves building to 9 to
12 feet occasionally to 15 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet. 
.sunday night...southwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.monday...west winds 5 to 15 knots veering north by mid
afternoon. waves subsiding to calm to 2 feet. 
.monday night...east winds less than 10 knots increasing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots veering south. waves
calm to 2 feet. 
.wednesday...south winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202610170800;;226410

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt fri oct 16 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 30.6 inch high over the plains extends 30.3 to 30.4 inch ridging 
over lake superior tonight. the high then slides south of the great 
lakes at 30.5 inches by saturday night as a 29.2 inch alberta 
clipper moves through the northern canadian prairie provinces 
towards hudson bay, deepening to 29.0 inches by the time it arrives 
at hudson bay on sunday. this brings weak 30.0 inch troughing to 
northern lake superior on sunday. as the low continues east over 
hudson bay and weakens with time sunday night into monday afternoon, 
high pressure ridging of 30.3 inches returns to the upper great 
lakes by monday. the high pressure ridging strengthens to 30.4 
inches over lake superior by tuesday as the now 30.5 inch parent 
high over northern ontario continues east into northern quebec. as 
the high continues to retreat eastward, the ridging over lake 
superior may potentially weaken to 30.2 inches by wednesday. 




lsz267-170800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt fri oct 16 2026

.rest of tonight...north winds 20 to 30 knots diminishing to
15 to 25 knots after midnight, then becoming west 10 to 20 knots
late. waves 6 to 9 feet occasionally to 11 feet subsiding to 2 to
4 feet. 
.saturday...west winds 15 to 25 knots becoming southwest 20 to
30 knots in the afternoon, then diminishing to 15 to 25 knots
late. waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday night...southwest winds 15 to 25 knots increasing to
30 knots with a few gale force gusts to 35 knots possible. waves
building to 5 to 8 feet occasionally to 10 feet. 
.sunday...southwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...southwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 2 to 4 feet. 
.monday...southwest winds 5 to 15 knots veering west by mid
afternoon. waves subsiding to calm to 2 feet. 
.monday night...northwest winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 
.wednesday...south winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202610170800;;226405

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt fri oct 16 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 30.6 inch high over the plains extends 30.3 to 30.4 inch ridging 
over lake superior tonight. the high then slides south of the great 
lakes at 30.5 inches by saturday night as a 29.2 inch alberta 
clipper moves through the northern canadian prairie provinces 
towards hudson bay, deepening to 29.0 inches by the time it arrives 
at hudson bay on sunday. this brings weak 30.0 inch troughing to 
northern lake superior on sunday. as the low continues east over 
hudson bay and weakens with time sunday night into monday afternoon, 
high pressure ridging of 30.3 inches returns to the upper great 
lakes by monday. the high pressure ridging strengthens to 30.4 
inches over lake superior by tuesday as the now 30.5 inch parent 
high over northern ontario continues east into northern quebec. as 
the high continues to retreat eastward, the ridging over lake 
superior may potentially weaken to 30.2 inches by wednesday. 




lsz162-170800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt fri oct 16 2026 /901 pm cdt fri oct 16 2026/

.rest of tonight...northwest winds 10 to 20 knots backing west
after midnight, then becoming southwest 15 to 25 knots late.
waves 1 to 3 feet subsiding to calm to 2 feet, then building to
3 to 5 feet occasionally to 7 feet. 
.saturday...southwest 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. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 4 to 7 feet occasionally to 9 feet. 
.saturday night...southwest winds to 30 knots with a few gale
force gusts to 40 knots possible. waves building to 8 to 11 feet
occasionally to 14 feet. 
.sunday...southwest gales to 40 knots. waves subsiding to 4 to
7 feet occasionally to 9 feet. 
.sunday night...southwest winds 15 to 25 knots becoming west 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...northwest winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.monday night...northeast winds less than 10 knots increasing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots veering south. waves calm to
2 feet. 
.wednesday...south winds 5 to 15 knots veering southwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202610170800;;226406

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt fri oct 16 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 30.6 inch high over the plains extends 30.3 to 30.4 inch ridging 
over lake superior tonight. the high then slides south of the great 
lakes at 30.5 inches by saturday night as a 29.2 inch alberta 
clipper moves through the northern canadian prairie provinces 
towards hudson bay, deepening to 29.0 inches by the time it arrives 
at hudson bay on sunday. this brings weak 30.0 inch troughing to 
northern lake superior on sunday. as the low continues east over 
hudson bay and weakens with time sunday night into monday afternoon, 
high pressure ridging of 30.3 inches returns to the upper great 
lakes by monday. the high pressure ridging strengthens to 30.4 
inches over lake superior by tuesday as the now 30.5 inch parent 
high over northern ontario continues east into northern quebec. as 
the high continues to retreat eastward, the ridging over lake 
superior may potentially weaken to 30.2 inches by wednesday. 




lsz263-170800-
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 pm edt fri oct 16 2026

.rest of tonight...northwest winds 5 to 15 knots backing west
after midnight, then increasing to 15 to 25 knots late. waves
2 to 4 feet subsiding to calm to 2 feet, then building to 3 to
6 feet occasionally to 8 feet. 
.saturday...southwest winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible in the
afternoon. waves building to 8 to 11 feet occasionally to
14 feet, then subsiding to 6 to 9 feet occasionally to 11 feet. 
.saturday night...southwest winds to 30 knots with a few gale
force gusts to 40 knots possible. waves subsiding to 5 to 8 feet
occasionally to 10 feet, then building to 9 to 12 feet
occasionally to 15 feet. 
.sunday...southwest gales to 40 knots. waves building to 10 to
14 feet occasionally to 18 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.sunday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots becoming east less than
10 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...east winds less than 10 knots. waves calm to
2 feet. 
.tuesday...east winds 5 to 15 knots veering south. waves calm to
2 feet. 
.wednesday...south winds 5 to 15 knots becoming southwest 10 to
20 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$