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 090751
glfle 
expires:202610091415;;782609

open lake forecast for lake erie
national weather service cleveland oh
351 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. 


lez061-166>169-091415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm 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-
351 am edt fri oct 9 2026

.today...northwest winds 5 to 15 knots becoming west 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. 
.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 090751
glfle 
expires:202610091415;;782608

open lake forecast for lake erie
national weather service cleveland oh
351 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>165-091415-
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-
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-
351 am edt fri oct 9 2026

.today...west winds 10 knots or less becoming southwest. waves
2 feet or less. 
.tonight...east winds 5 to 10 knots becoming southeast. waves
2 feet or less. 
.saturday...southeast winds 10 to 15 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 building to
2 to 4 feet. 
.sunday...southeast winds 15 to 20 knots becoming north and
diminishing to 5 to 10 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 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 2 to 4 feet. 

$$

fzus63 kdtx 090739
glfsc 
expires:202610091545;;782377

lake st clair forecast
national weather service detroit/pontiac mi
339 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.


lcz460-091545-
lake st clair-
339 am edt fri oct 9 2026

.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 1 to 3 feet.
.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 090739
glflh 
expires:202610091545;;782373

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 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.


lhz361-362-091545-
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-
339 am edt fri oct 9 2026

.today...west winds 10 to 15 knots veering to the northwest early
in the afternoon...then becoming northwest 10 to 15 knots late in
the afternoon. waves 1 to 3 feet building to 2 to 4 feet in the
late morning and early afternoon...then 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
6 to 9 feet in the late morning and afternoon. waves occasionally
around 12 feet. 
.saturday night...south winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots after midnight. waves 6 to
9 feet. waves occasionally around 12 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 090739
glflh 
expires:202610091545;;782374

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 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.


lhz363-462-091545-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
339 am edt fri oct 9 2026

.today...southwest winds 10 to 15 knots becoming west 5 to
10 knots 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. 
.saturday night...south winds 15 to 20 knots. waves 4 to 6 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. waves occasionally around
8 feet. 
.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 kdtx 090739
glflh 
expires:202610091545;;782375

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 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.


lhz463-464-091545-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
339 am edt fri oct 9 2026

.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 kmkx 090556
glflm 
expires:202610091515;;776096

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1256 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 move across the region 
overnight. winds will become southeast on friday and south friday
night, as the high moves to the east and low pressure around 29.2
inches develops the northern plains. the tight pressure gradient 
over lake michigan will produce breezy southerly winds up to 30 
knots from friday night through sunday morning. a few gale force 
gusts may occur in the northern half of the lake saturday 
afternoon and evening. gale warnings aren't expected at this time.

lighter winds are expected 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.


lmz080-669-671-673-675-777-779-870-872-874-876-878-091515-
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-
1256 am cdt fri oct 9 2026

sheboygan wi to pentwater mi south...

.today...southwest winds 5 to 10 kt becoming south late this
morning, then becoming southeast early this afternoon becoming
10 to 20 kt late. 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 7 to 10 ft occasionally
to 13 ft. 
.saturday night...south winds to 30 kt diminishing to 15 to
25 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
7 ft occasionally to 9 ft. 
.sunday...southeast winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.sunday night...south winds 10 to 15 kt. waves 2 to 4 ft
subsiding to 1 to 2 ft. 
.monday...south winds 10 to 20 kt becoming southwest 15 to 25 kt.
waves 2 to 4 ft. 
.tuesday...north winds 15 to 25 kt. waves 6 to 9 ft occasionally
to 12 ft.  

$$

fzus63 kmkx 090556
glflm 
expires:202610091515;;776095

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1256 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 move across the region 
overnight. winds will become southeast on friday and south friday
night, as the high moves to the east and low pressure around 29.2
inches develops the northern plains. the tight pressure gradient 
over lake michigan will produce breezy southerly winds up to 30 
knots from friday night through sunday morning. a few gale force 
gusts may occur in the northern half of the lake saturday 
afternoon and evening. gale warnings aren't expected at this time.

lighter winds are expected 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.


lmz261-362-364-366-563-565-567-868-091515-
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-
1256 am cdt fri oct 9 2026

sheboygan wi to pentwater mi north...

.today...northwest winds 10 to 15 kt veering to east. waves 1 to
2 ft. 
.tonight...east winds 10 to 20 kt becoming southeast 15 to 25 kt.
waves 1 to 3 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 7 to 10 ft occasionally to
13 ft. 
.saturday night...south winds to 30 kt. waves 7 to 10 ft
occasionally to 13 ft. 
.sunday...south winds 15 to 25 kt. waves 5 to 8 ft occasionally
to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.sunday night...south winds 10 to 20 kt becoming southwest. waves
3 to 5 ft subsiding to 2 to 4 ft. 
.monday...southwest winds 15 to 25 kt. chance of showers. waves
2 to 4 ft. 
.tuesday...north winds 15 to 25 kt. waves 4 to 7 ft occasionally
to 9 ft.  

$$

fzus63 kmqt 090801
glfls 
expires:202610092000;;782820

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

30.1 inch surface high pressure south of the lower great lakes 
builds to 30.2 inches later this morning, sending 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. 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. 
meanwhile, the high will shift to the new england coastline, ushered 
east by the tropical remnants now at 29.9 inches over tennessee. for 
sunday evening, the plains low will shift to eastern colorado at 
29.6 inches, extending a 29.8 inch trough over lake superior as the 
high and tropical remnants shift further east. 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-
401 am edt fri oct 9 2026

.early this morning...north winds 5 to 15 knots. waves calm to
2 feet. 
.today...north winds 5 to 15 knots veering east in the afternoon,
then increasing to 10 to 20 knots late. 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 090801
glfls 
expires:202610092000;;782821

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

30.1 inch surface high pressure south of the lower great lakes 
builds to 30.2 inches later this morning, sending 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. 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. 
meanwhile, the high will shift to the new england coastline, ushered 
east by the tropical remnants now at 29.9 inches over tennessee. for 
sunday evening, the plains low will shift to eastern colorado at 
29.6 inches, extending a 29.8 inch trough over lake superior as the 
high and tropical remnants shift further east. 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-
401 am edt fri oct 9 2026

.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...north winds 5 to 15 knots becoming northwest less than
10 knots in the afternoon, then 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 7 to 10 feet occasionally to
13 feet, then subsiding to 5 to 8 feet occasionally to 10 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. 

$$

fzus63 kmqt 090801
glfls 
expires:202610092000;;782822

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

30.1 inch surface high pressure south of the lower great lakes 
builds to 30.2 inches later this morning, sending 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. 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. 
meanwhile, the high will shift to the new england coastline, ushered 
east by the tropical remnants now at 29.9 inches over tennessee. for 
sunday evening, the plains low will shift to eastern colorado at 
29.6 inches, extending a 29.8 inch trough over lake superior as the 
high and tropical remnants shift further east. 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-
401 am edt fri oct 9 2026

.early this morning...northwest winds 10 to 20 knots. waves calm
to 2 feet. 
.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 090801
glfls 
expires:202610092000;;782823

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

30.1 inch surface high pressure south of the lower great lakes 
builds to 30.2 inches later this morning, sending 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. 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. 
meanwhile, the high will shift to the new england coastline, ushered 
east by the tropical remnants now at 29.9 inches over tennessee. for 
sunday evening, the plains low will shift to eastern colorado at 
29.6 inches, extending a 29.8 inch trough over lake superior as the 
high and tropical remnants shift further east. 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-
401 am edt fri oct 9 2026

.early this morning...northwest winds 10 to 20 knots. waves 1 to
3 feet. 
.today...northwest winds 5 to 15 knots veering east late. waves
subsiding to 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 090801
glfls 
expires:202610092000;;782824

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

30.1 inch surface high pressure south of the lower great lakes 
builds to 30.2 inches later this morning, sending 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. 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. 
meanwhile, the high will shift to the new england coastline, ushered 
east by the tropical remnants now at 29.9 inches over tennessee. for 
sunday evening, the plains low will shift to eastern colorado at 
29.6 inches, extending a 29.8 inch trough over lake superior as the 
high and tropical remnants shift further east. 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-
401 am edt fri oct 9 2026

.early this morning...northwest winds 10 to 20 knots. waves 2 to
4 feet. 
.today...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves 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 building 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 090801
glfls 
expires:202610092000;;782819

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

30.1 inch surface high pressure south of the lower great lakes 
builds to 30.2 inches later this morning, sending 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. 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. 
meanwhile, the high will shift to the new england coastline, ushered 
east by the tropical remnants now at 29.9 inches over tennessee. for 
sunday evening, the plains low will shift to eastern colorado at 
29.6 inches, extending a 29.8 inch trough over lake superior as the 
high and tropical remnants shift further east. 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-
401 am edt fri oct 9 2026 /301 am cdt fri oct 9 2026/

.early this morning...north winds less than 10 knots. waves calm
to 2 feet. 
.today...east winds less than 10 knots increasing to 15 to
25 knots. waves 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. 

$$