fzus61 kbuf 090803
glflo 
expires:202610091500;;782897

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri oct 9 2026

for waters beyond five nautical miles of shore on lake ontario

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 ridge averaging 30.1 inches overhead today will slowly 
exit eastward tonight through saturday and allow a warm front to 
drift northward across the lake. on sunday through tuesday, a weak 
trough averaging 29.9 inches will overspread our area generally from 
the west with a cold front sweeping eastward across the lake on 
tuesday. simultaneously, the future remnant low of isaias will 
wobble northeastward from near the lower ohio valley to atlantic 
waters south of nova scotia and weaken to 29.6 inches sunday through 
tuesday.


loz062-091500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt fri oct 9 2026

.today...west winds 15 to 20 knots. waves 3 to 5 feet. 
.tonight...northwest winds 5 to 15 knots becoming east. waves
2 to 4 feet subsiding to 1 foot or less. 
.saturday...southeast winds 5 to 15 knots becoming east. waves
2 feet or less. 
.saturday night...east winds 5 to 15 knots becoming southeast.
waves 1 to 2 feet. 
.sunday...southeast winds 5 to 15 knots becoming east. showers.
waves 2 feet or less. 
.monday...north winds less than 10 knots becoming southwest and
increasing to 15 to 20 knots. a chance of showers monday night.
waves 1 to 3 feet. 
.tuesday...west winds 15 to 20 knots becoming north 10 to
15 knots. a chance of showers. waves 2 to 4 feet. 

$$

fzus61 kbuf 090803
glflo 
expires:202610091500;;782898

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri oct 9 2026

for waters beyond five nautical miles of shore on lake ontario

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 ridge averaging 30.1 inches overhead today will slowly 
exit eastward tonight through saturday and allow a warm front to 
drift northward across the lake. on sunday through tuesday, a weak 
trough averaging 29.9 inches will overspread our area generally from 
the west with a cold front sweeping eastward across the lake on 
tuesday. simultaneously, the future remnant low of isaias will 
wobble northeastward from near the lower ohio valley to atlantic 
waters south of nova scotia and weaken to 29.6 inches sunday through 
tuesday.


loz063>065-091500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt fri oct 9 2026

.today...west winds 15 to 20 knots. a chance of waterspouts. a
chance of showers. waves 4 to 7 feet subsiding to 3 to 6 feet.
waves occasionally around 9 feet. 
.tonight...northwest winds 15 to 20 knots becoming east and
diminishing to 5 to 10 knots. waves 3 to 6 feet subsiding to 1 to
3 feet. 
.saturday...east winds 5 to 15 knots. waves 2 feet or less. 
.saturday night...east winds 10 to 15 knots becoming southeast
15 to 20 knots. waves 1 to 3 feet. 
.sunday...southeast winds 15 to 20 knots diminishing to 5 to
15 knots. showers. waves 1 to 3 feet. 
.monday...northeast winds 10 knots or less becoming southwest and
increasing to 15 to 20 knots. a chance of showers monday night.
waves 1 foot or less building to 1 to 3 feet. 
.tuesday...west winds 15 to 20 knots becoming northwest. a chance
of showers. waves 2 to 4 feet building to 3 to 5 feet, then
subsiding to 2 to 4 feet. 

$$

fzus61 kcle 091425
glfle 
expires:202610092015;;797568

open lake forecast for lake erie
national weather service cleveland oh
1025 am edt fri oct 9 2026

for waters beyond five nautical miles of shore on lake erie

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 remain overhead today then exit 
east on saturday. the remnant low of isaias 29.80 inches will 
track northeast through the tennessee and ohio valleys on 
sunday before departing off the east coast on monday. a cold 
front with pressure of 29.80 inches will cross the lake on 
tuesday.


lez061-167>169-092015-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
1025 am edt fri oct 9 2026

.this afternoon...west winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.tonight...southwest winds 5 to 15 knots becoming southeast.
waves 1 to 3 feet subsiding to 1 foot or less. 
.saturday...southeast winds 5 to 15 knots. waves 2 feet or less. 
.saturday night...southeast winds 10 to 15 knots increasing to
15 to 20 knots. showers likely overnight. waves 1 to 3 feet
building to 2 to 4 feet. 
.sunday...southeast winds 15 to 20 knots becoming northeast 5 to
15 knots. showers during the day, then a chance of showers sunday
night. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...north winds 5 to 15 knots becoming southwest 15 to
20 knots. a chance of showers monday night. waves 2 feet or less
building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 20 knots becoming north. a
chance of showers during the day. waves 3 to 6 feet. 

$$

fzus61 kcle 091425
glfle 
expires:202610092015;;797566

open lake forecast for lake erie
national weather service cleveland oh
1025 am edt fri oct 9 2026

for waters beyond five nautical miles of shore on lake erie

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 remain overhead today then exit 
east on saturday. the remnant low of isaias 29.80 inches will 
track northeast through the tennessee and ohio valleys on 
sunday before departing off the east coast on monday. a cold 
front with pressure of 29.80 inches will cross the lake on 
tuesday.


lez162-163-092015-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
1025 am edt fri oct 9 2026

.this afternoon...southwest winds 10 knots or less becoming
southeast. waves 1 foot or less. 
.tonight...southeast winds 5 to 10 knots. waves 2 feet or less. 
.saturday...southeast winds around 10 knots. waves 2 feet or
less. 
.saturday night...southeast winds 10 to 15 knots increasing to
15 to 20 knots. showers overnight. waves 1 to 3 feet. 
.sunday...east winds 15 to 20 knots becoming northwest 5 to
15 knots. showers during the day. waves 2 to 4 feet subsiding to
1 foot or less. 
.monday...northwest winds 5 to 15 knots becoming southwest. a
chance of showers monday night. waves 1 to 3 feet. 
.tuesday...west winds 15 to 20 knots becoming north. a chance of
showers during the day. waves 1 to 3 feet. 

$$

fzus61 kcle 091425
glfle 
expires:202610092015;;797567

open lake forecast for lake erie
national weather service cleveland oh
1025 am edt fri oct 9 2026

for waters beyond five nautical miles of shore on lake erie

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 remain overhead today then exit 
east on saturday. the remnant low of isaias 29.80 inches will 
track northeast through the tennessee and ohio valleys on 
sunday before departing off the east coast on monday. a cold 
front with pressure of 29.80 inches will cross the lake on 
tuesday.


lez164>166-092015-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-
1025 am edt fri oct 9 2026

.this afternoon...southwest winds 5 to 10 knots becoming west.
waves 2 feet or less. 
.tonight...southeast winds 5 to 10 knots. waves 2 feet or less. 
.saturday...southeast winds 10 to 15 knots. waves 1 to 2 feet. 
.saturday night...southeast winds 10 to 15 knots increasing to
15 to 20 knots. showers overnight. waves 1 to 3 feet building to
2 to 4 feet. 
.sunday...southeast winds 15 to 20 knots becoming north 5 to
15 knots. showers during the day. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.monday...northwest winds 5 to 15 knots becoming southwest 15 to
20 knots. a chance of showers monday night. waves 1 to 2 feet
building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 20 knots becoming north. a
chance of showers during the day. waves 3 to 5 feet. 

$$

fzus63 kdtx 091337
glfsc 
expires:202610092200;;796052

lake st clair forecast
national weather service detroit/pontiac mi
937 am edt fri oct 9 2026

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 over quebec departs on friday as high
pressure builds in from the west. winds will decrease and shift
southerly once the center of the high builds into the ohio
valley. rain-free conditions expected until the remnants of
hurricane isaias arrive saturday night or sunday, along with
increasing wind speeds.


lcz460-092200-
lake st clair-
937 am edt fri oct 9 2026

.rest of today...southwest winds 5 to 10 knots. sunny. waves 2 feet
or less.
.tonight...south winds 5 to 10 knots becoming southeast 10 to 15
knots after midnight. mostly clear. waves 2 feet or less.
.saturday...southeast winds 10 to 15 knots. partly sunny. waves 2
feet or less.
.saturday night...southeast winds 10 to 15 knots. mostly cloudy
becoming partly cloudy by midnight becoming mostly cloudy. a chance
of light rain after midnight. waves 2 feet or less.
.sunday...southeast winds 10 to 15 knots becoming northeast 5 to 10
knots in the evening. light rain. waves 2 feet or less.
.monday...southwest winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
.tuesday...north winds 15 to 20 knots. partly cloudy. a chance of
light rain. waves 1 to 3 feet.

$$

fzus63 kdtx 091336
glflh 
expires:202610092200;;796047

open lake forecast for lake huron
national weather service detroit/pontiac mi
936 am edt fri oct 9 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 over quebec departs on friday as high
pressure builds in from the west. winds will decrease and shift
southerly once the center of the high builds into the ohio
valley. rain-free conditions expected until the remnants of
hurricane isaias arrive saturday night or sunday, along with
increasing wind speeds.


lhz463-464-092200-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
936 am edt fri oct 9 2026

.rest of today...west winds 10 to 15 knots decreasing to 5 to
10 knots late in the afternoon. waves 1 to 3 feet. 
.tonight...north winds 5 to 10 knots veering to the east late in
the evening...then becoming southeast 10 to 15 knots after
midnight. waves 1 to 3 feet. 
.saturday...southeast winds 15 to 20 knots. waves 3 to 5 feet. 
.saturday night...southeast winds 15 to 20 knots. waves 3 to
5 feet. 
.sunday...southeast winds 10 to 15 knots becoming light and
variable. rain likely in the morning...then a chance of rain late
in the morning. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...light and variable winds becoming southwest 10 to
15 knots. a chance of rain by midnight. waves 2 feet or less. 
.tuesday...west winds 15 to 20 knots veering to the northwest. a
chance of rain until afternoon. waves 3 to 5 feet. 


$$

fzus63 kdtx 091336
glflh 
expires:202610092200;;796045

open lake forecast for lake huron
national weather service detroit/pontiac mi
936 am edt fri oct 9 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 over quebec departs on friday as high
pressure builds in from the west. winds will decrease and shift
southerly once the center of the high builds into the ohio
valley. rain-free conditions expected until the remnants of
hurricane isaias arrive saturday night or sunday, along with
increasing wind speeds.


lhz361-362-092200-
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-
936 am edt fri oct 9 2026

.rest of today...northwest winds 10 to 15 knots. waves 2 to
4 feet subsiding to 1 to 3 feet late in the afternoon. 
.tonight...light and variable winds becoming east 5 to 10 knots
after midnight...then becoming southeast 10 to 15 knots early in
the morning. waves 2 feet or less. 
.saturday...southeast winds 15 to 20 knots. gusts to 30 knots in
the late morning and afternoon. waves 3 to 5 feet building to
5 to 7 feet in the late morning and afternoon. waves occasionally
around 10 feet. 
.saturday night...south winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots after midnight. waves 5 to
7 feet. waves occasionally around 10 feet. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
late in the evening. waves 3 to 5 feet subsiding to 1 to 3 feet
late in the evening. 
.monday...southwest winds 5 to 10 knots becoming south 10 to
15 knots . a chance of rain . waves 1 to 3 feet building to 2 to
4 feet . 
.tuesday...north winds 15 to 20 knots decreasing to 10 to
15 knots. a chance of rain early in the morning. waves 2 to 4 
feet. 


$$

fzus63 kdtx 091336
glflh 
expires:202610092200;;796046

open lake forecast for lake huron
national weather service detroit/pontiac mi
936 am edt fri oct 9 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 over quebec departs on friday as high
pressure builds in from the west. winds will decrease and shift
southerly once the center of the high builds into the ohio
valley. rain-free conditions expected until the remnants of
hurricane isaias arrive saturday night or sunday, along with
increasing wind speeds.


lhz363-462-092200-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
936 am edt fri oct 9 2026

.rest of today...west winds 10 to 15 knots decreasing to 5 to
10 knots early in the afternoon...then veering to the west 5 to
10 knots late in the afternoon. waves 2 to 4 feet subsiding to
1 to 3 feet late in the afternoon. 
.tonight...northeast winds 5 to 10 knots veering to the east late
in the evening...then becoming southeast 10 to 15 knots after
midnight. waves 1 to 3 feet. 
.saturday...southeast winds 15 to 20 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.saturday night...south winds 15 to 20 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.sunday...south winds 10 to 15 knots becoming light and variable.
a chance of rain in the morning. waves 3 to 5 feet subsiding to
1 to 3 feet late in the afternoon. 
.monday...southwest winds 5 to 10 knots increasing to 10 to
15 knots . a chance of rain by midnight. waves 2 feet or less
building to 2 to 4 feet. 
.tuesday...north winds 15 to 20 knots decreasing to 10 to
15 knots by midnight. a chance of rain until afternoon. waves
3 to 5 feet. 


$$

fzus63 kmkx 091340
glflm 
expires:202610092115;;796107

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
840 am cdt fri oct 9 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...

high pressure around 30.1 inches will exit into this afternoon,
allowing for winds to become southeasterly. winds shift to
southerly tonight as the high moves to the east and low pressure 
around 29.2 inches develops the northern plains. a tight pressure
gradient over lake michigan will produce southerly winds gusting up
to 30 knots from tonight through sunday morning. a few gale force
gusts may occur in the northern half of the lake saturday 
afternoon and evening. gale warnings are not expected at this 
time.

lighter winds are expected by monday, as a weak low pressure 
trough around 29.7 inches slowly moves from minnesota to 
wisconsin. look for gusty northwest to north winds to develop 
monday night into tuesday after the passage of a cold front, as 
high pressure around 30.1 inches builds into the upper midwest.


lmz080-669-671-673-675-777-779-870-872-874-876-878-092115-
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-
840 am cdt fri oct 9 2026

sheboygan wi to pentwater mi south...

.rest of today...southwest winds 10 to 15 kt backing to
southeast. slight chance of showers this afternoon. waves 1 to
3 ft. 
.tonight...southeast winds 10 to 20 kt becoming south 15 to
25 kt. slight chance of showers in the evening. waves 3 to 5 ft
building to 4 to 7 ft occasionally to 9 ft. 
.saturday...south winds to 30 kt. waves 6 to 9 ft occasionally to
12 ft building to 8 to 11 ft occasionally to 14 ft. 
.saturday night...south winds to 30 kt diminishing to 15 to
25 kt. waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to
8 ft occasionally to 10 ft. 
.sunday...southeast winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.sunday night...south winds 10 to 15 kt. waves 1 to 3 ft. 
.monday...south winds 10 to 20 kt becoming southwest 15 to 25 kt.
waves 2 to 4 ft building to 3 to 5 ft. 
.tuesday...north winds to 30 kt. waves 6 to 9 ft occasionally to
12 ft.  

$$

fzus63 kmkx 091340
glflm 
expires:202610092115;;796106

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
840 am cdt fri oct 9 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...

high pressure around 30.1 inches will exit into this afternoon,
allowing for winds to become southeasterly. winds shift to
southerly tonight as the high moves to the east and low pressure 
around 29.2 inches develops the northern plains. a tight pressure
gradient over lake michigan will produce southerly winds gusting up
to 30 knots from tonight through sunday morning. a few gale force
gusts may occur in the northern half of the lake saturday 
afternoon and evening. gale warnings are not expected at this 
time.

lighter winds are expected by monday, as a weak low pressure 
trough around 29.7 inches slowly moves from minnesota to 
wisconsin. look for gusty northwest to north winds to develop 
monday night into tuesday after the passage of a cold front, as 
high pressure around 30.1 inches builds into the upper midwest.


lmz261-362-364-366-563-565-567-868-092115-
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-
840 am cdt fri oct 9 2026

sheboygan wi to pentwater mi north...

.rest of today...north winds 5 to 10 kt veering to east. waves
1 to 2 ft. 
.tonight...east winds 10 to 20 kt becoming southeast 15 to 25 kt.
waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft. 
.saturday...southeast winds to 30 kt becoming south. waves 6 to
9 ft occasionally to 12 ft building to 8 to 11 ft occasionally to
14 ft. 
.saturday night...south winds to 30 kt. waves 8 to 11 ft
occasionally to 14 ft subsiding to 6 to 9 ft occasionally to
12 ft. 
.sunday...south winds 15 to 25 kt. waves 4 to 7 ft occasionally
to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.sunday night...south winds 10 to 20 kt becoming southwest. waves
2 to 4 ft. 
.monday...southwest winds 15 to 25 kt. chance of showers. waves
2 to 4 ft building to 3 to 5 ft. 
.tuesday...north winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmqt 091401
glfls 
expires:202610092000;;796490

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri oct 9 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 30.2 inch surface high has built over the ohio river valley this 
morning, resulting in 30.1 inch ridging over lake superior. this 
ridge is separating a pair of 29.4 inch lows, one over southern 
alberta and one off the labrador coast. throughout the day and into 
saturday morning, the high will build to 30.4 inches over new york 
as the alberta low moves to southern saskatchewan and the north 
plains. meanwhile, 29.7 inch hurricane isaias will move up the 
alabama/mississippi state line, eventually helping to kick the high 
east as it weakens. by early sunday morning, the canada low will 
split into 2 weaker 29.6 inch lows, one settling over the central 
plains and one moving from northern minnesota to northern ontario. 
this will create weak 29.8 inch troughing over lake superior for 
sunday, deepening to 29.7 inches by monday evening. meanwhile, the 
high will shift to the new england coastline then over the atlantic, 
ushered east by the tropical remnants at 29.9 inches as they move 
into the ohio river valley. the colorado low crosses the great lakes 
basin early next week, followed by 30.2 inch high pressure for the 
midweek.




lsz265-092000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt fri oct 9 2026

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

$$

fzus63 kmqt 091401
glfls 
expires:202610092000;;796491

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri oct 9 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 30.2 inch surface high has built over the ohio river valley this 
morning, resulting in 30.1 inch ridging over lake superior. this 
ridge is separating a pair of 29.4 inch lows, one over southern 
alberta and one off the labrador coast. throughout the day and into 
saturday morning, the high will build to 30.4 inches over new york 
as the alberta low moves to southern saskatchewan and the north 
plains. meanwhile, 29.7 inch hurricane isaias will move up the 
alabama/mississippi state line, eventually helping to kick the high 
east as it weakens. by early sunday morning, the canada low will 
split into 2 weaker 29.6 inch lows, one settling over the central 
plains and one moving from northern minnesota to northern ontario. 
this will create weak 29.8 inch troughing over lake superior for 
sunday, deepening to 29.7 inches by monday evening. meanwhile, the 
high will shift to the new england coastline then over the atlantic, 
ushered east by the tropical remnants at 29.9 inches as they move 
into the ohio river valley. the colorado low crosses the great lakes 
basin early next week, followed by 30.2 inch high pressure for the 
midweek.




lsz266-092000-
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 fri oct 9 2026

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

$$

fzus63 kmqt 091401
glfls 
expires:202610092000;;796492

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri oct 9 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 30.2 inch surface high has built over the ohio river valley this 
morning, resulting in 30.1 inch ridging over lake superior. this 
ridge is separating a pair of 29.4 inch lows, one over southern 
alberta and one off the labrador coast. throughout the day and into 
saturday morning, the high will build to 30.4 inches over new york 
as the alberta low moves to southern saskatchewan and the north 
plains. meanwhile, 29.7 inch hurricane isaias will move up the 
alabama/mississippi state line, eventually helping to kick the high 
east as it weakens. by early sunday morning, the canada low will 
split into 2 weaker 29.6 inch lows, one settling over the central 
plains and one moving from northern minnesota to northern ontario. 
this will create weak 29.8 inch troughing over lake superior for 
sunday, deepening to 29.7 inches by monday evening. meanwhile, the 
high will shift to the new england coastline then over the atlantic, 
ushered east by the tropical remnants at 29.9 inches as they move 
into the ohio river valley. the colorado low crosses the great lakes 
basin early next week, followed by 30.2 inch high pressure for the 
midweek.




lsz267-092000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt fri oct 9 2026

.rest of today...northwest winds 10 to 20 knots diminishing to
5 to 15 knots in the afternoon. waves 1 to 3 feet subsiding to
calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots increasing to 20 to
30 knots. waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday...southeast winds to 30 knots with a few gale force
gusts to 35 knots possible becoming south 20 to 30 knots late.
waves building to 4 to 8 feet occasionally to 10 feet. 
.saturday night...south winds 20 to 30 knots. waves subsiding to
4 to 8 feet occasionally to 10 feet. 
.sunday...south winds 15 to 25 knots. waves subsiding to 1 to
3 feet. 
.sunday night...south winds 10 to 20 knots. waves 1 to 3 feet. 
.monday...northeast winds 15 to 25 knots backing north. a chance
of showers. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday...north winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 091401
glfls 
expires:202610092000;;796488

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri oct 9 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 30.2 inch surface high has built over the ohio river valley this 
morning, resulting in 30.1 inch ridging over lake superior. this 
ridge is separating a pair of 29.4 inch lows, one over southern 
alberta and one off the labrador coast. throughout the day and into 
saturday morning, the high will build to 30.4 inches over new york 
as the alberta low moves to southern saskatchewan and the north 
plains. meanwhile, 29.7 inch hurricane isaias will move up the 
alabama/mississippi state line, eventually helping to kick the high 
east as it weakens. by early sunday morning, the canada low will 
split into 2 weaker 29.6 inch lows, one settling over the central 
plains and one moving from northern minnesota to northern ontario. 
this will create weak 29.8 inch troughing over lake superior for 
sunday, deepening to 29.7 inches by monday evening. meanwhile, the 
high will shift to the new england coastline then over the atlantic, 
ushered east by the tropical remnants at 29.9 inches as they move 
into the ohio river valley. the colorado low crosses the great lakes 
basin early next week, followed by 30.2 inch high pressure for the 
midweek.




lsz263-092000-
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 fri oct 9 2026

.rest of today...east winds less than 10 knots increasing to
10 to 20 knots. waves calm to 2 feet. 
.tonight...east winds 15 to 25 knots veering southeast after
midnight. waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday...southeast winds 15 to 25 knots becoming south 20 to
30 knots in the afternoon. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.saturday night...south winds 20 to 30 knots veering southwest
after midnight. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.sunday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.sunday night...east winds 15 to 25 knots becoming northeast
20 to 30 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday...northeast winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of rain showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.tuesday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 091401
glfls 
expires:202610092000;;796487

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri oct 9 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 30.2 inch surface high has built over the ohio river valley this 
morning, resulting in 30.1 inch ridging over lake superior. this 
ridge is separating a pair of 29.4 inch lows, one over southern 
alberta and one off the labrador coast. throughout the day and into 
saturday morning, the high will build to 30.4 inches over new york 
as the alberta low moves to southern saskatchewan and the north 
plains. meanwhile, 29.7 inch hurricane isaias will move up the 
alabama/mississippi state line, eventually helping to kick the high 
east as it weakens. by early sunday morning, the canada low will 
split into 2 weaker 29.6 inch lows, one settling over the central 
plains and one moving from northern minnesota to northern ontario. 
this will create weak 29.8 inch troughing over lake superior for 
sunday, deepening to 29.7 inches by monday evening. meanwhile, the 
high will shift to the new england coastline then over the atlantic, 
ushered east by the tropical remnants at 29.9 inches as they move 
into the ohio river valley. the colorado low crosses the great lakes 
basin early next week, followed by 30.2 inch high pressure for the 
midweek.




lsz162-092000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt fri oct 9 2026 /901 am cdt fri oct 9 2026/

.rest of today...east winds 5 to 15 knots increasing to 15 to
25 knots late. waves calm to 2 feet building to 1 to 3 feet. 
.tonight...east winds 15 to 25 knots veering southeast after
midnight, then diminishing to 10 to 20 knots late. waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.saturday...southeast winds 10 to 20 knots increasing to 20 to
30 knots in the afternoon, then veering south late. waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet. 
.saturday night...south winds 20 to 30 knots veering southwest
after midnight. waves building to 3 to 6 feet occasionally to
8 feet. 
.sunday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.sunday night...northeast winds 10 to 20 knots increasing to
20 to 30 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday...northeast winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of showers. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 2 to 4 feet. 
.tuesday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 091401
glfls 
expires:202610092000;;796489

open lake forecast for lake superior
national weather service marquette mi
1001 am edt fri oct 9 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 30.2 inch surface high has built over the ohio river valley this 
morning, resulting in 30.1 inch ridging over lake superior. this 
ridge is separating a pair of 29.4 inch lows, one over southern 
alberta and one off the labrador coast. throughout the day and into 
saturday morning, the high will build to 30.4 inches over new york 
as the alberta low moves to southern saskatchewan and the north 
plains. meanwhile, 29.7 inch hurricane isaias will move up the 
alabama/mississippi state line, eventually helping to kick the high 
east as it weakens. by early sunday morning, the canada low will 
split into 2 weaker 29.6 inch lows, one settling over the central 
plains and one moving from northern minnesota to northern ontario. 
this will create weak 29.8 inch troughing over lake superior for 
sunday, deepening to 29.7 inches by monday evening. meanwhile, the 
high will shift to the new england coastline then over the atlantic, 
ushered east by the tropical remnants at 29.9 inches as they move 
into the ohio river valley. the colorado low crosses the great lakes 
basin early next week, followed by 30.2 inch high pressure for the 
midweek.




lsz264-092000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt fri oct 9 2026

.rest of today...northwest winds less than 10 knots becoming
southeast 5 to 15 knots late. waves calm to 2 feet. 
.tonight...southeast winds 15 to 25 knots increasing to 20 to
30 knots late. waves building to 4 to 7 feet occasionally to
9 feet. 
.saturday...southeast winds 20 to 30 knots becoming south 15 to
25 knots late. waves building to 6 to 10 feet occasionally to
13 feet. 
.saturday night...south winds 20 to 30 knots becoming southwest
15 to 25 knots after midnight. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...northeast winds 10 to 20 knots increasing to
20 to 30 knots after midnight. a chance of showers after
midnight. waves subsiding to calm to 2 feet, then building to
3 to 6 feet occasionally to 8 feet. 
.monday...northeast gales to 35 knots diminishing to 15 to
25 knots. a chance of showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 2 to 4 feet. 
.tuesday...north winds 10 to 20 knots becoming northwest 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$