fzus61 kbuf 190203
glflo 
expires:202610190900;;339082

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt sun oct 18 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 30.2 inches affects the lake through 
friday. one embedded high pressure center should wobble 
northeastward from southern pennsylvania to atlantic waters east of 
newfoundland through monday. another embedded and reinforcing high 
pressure center should move from near the border of the north-
central united states and canada to near the canadian maritimes this 
monday through wednesday. a third embedded and reinforcing high 
pressure center should wobble eastward from the canadian prairies to 
northern ontario this wednesday through thursday and then wobble 
southeastward to southern ontario this thursday night through friday.


loz062-190900-
lake ontario open waters from the niagara river to hamlin beach-
1003 pm edt sun oct 18 2026

.overnight...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...southwest winds 5 to 15 knots becoming west. waves
2 feet or less. 
.monday night...west winds 10 knots or less becoming northeast
10 to 15 knots. waves 2 feet or less. 
.tuesday...northeast winds 5 to 15 knots. waves 1 to 3 feet. 
.tuesday night...northeast winds 5 to 15 knots becoming east.
waves 1 to 2 feet. 
.wednesday...east winds 10 knots or less becoming west. waves
2 feet or less. 
.thursday...northwest winds less than 10 knots becoming northeast
and increasing to 15 to 20 knots. waves 2 feet or less building
to 2 to 4 feet. 
.friday...northeast winds 5 to 15 knots becoming east. waves 2 to
4 feet subsiding to 1 to 3 feet. 

$$

fzus61 kbuf 190203
glflo 
expires:202610190900;;339083

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt sun oct 18 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 30.2 inches affects the lake through 
friday. one embedded high pressure center should wobble 
northeastward from southern pennsylvania to atlantic waters east of 
newfoundland through monday. another embedded and reinforcing high 
pressure center should move from near the border of the north-
central united states and canada to near the canadian maritimes this 
monday through wednesday. a third embedded and reinforcing high 
pressure center should wobble eastward from the canadian prairies to 
northern ontario this wednesday through thursday and then wobble 
southeastward to southern ontario this thursday night through friday.


loz063>065-190900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 pm edt sun oct 18 2026

.overnight...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.monday...southwest winds 5 to 15 knots becoming west. waves 1 to
3 feet. 
.monday night...west winds 5 to 15 knots becoming northeast.
waves 2 feet or less. 
.tuesday...northeast winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.tuesday night...northeast winds 15 to 20 knots diminishing to
5 to 15 knots. waves 1 to 3 feet. 
.wednesday...northeast winds 10 knots or less becoming northwest.
waves 2 feet or less. 
.thursday...northwest winds 5 to 10 knots becoming northeast and
increasing to 15 to 20 knots. waves 1 foot or less building to
3 to 5 feet. 
.friday...northeast winds 15 to 20 knots becoming east 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 

$$

fzus61 kcle 190145
glfle 
expires:202610190815;;338688

open lake forecast for lake erie
national weather service cleveland oh
945 pm edt sun oct 18 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 will persist through this week, weakening slightly 
from 30.50 inches to 30.30 inches.


lez162-163-190815-
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-
945 pm edt sun oct 18 2026

.overnight...south winds around 10 knots becoming
southwest. waves 1 foot or less. 
.monday...southwest winds 5 to 10 knots becoming light and
variable. waves 1 foot or less. 
.monday night...light and variable winds. waves 1 foot or less. 
.tuesday...northeast winds 5 to 10 knots. waves 1 foot or less. 
.tuesday night...northeast winds 5 to 10 knots becoming east.
waves 2 feet or less. 
.wednesday...northeast winds 10 knots or less becoming northwest.
waves 2 feet or less. 
.thursday...northwest winds 10 knots or less becoming northeast
10 to 15 knots. waves 2 feet or less. 
.friday...northeast winds 10 to 15 knots becoming southeast.
waves 1 to 3 feet. 

$$

fzus61 kcle 190145
glfle 
expires:202610190815;;338689

open lake forecast for lake erie
national weather service cleveland oh
945 pm edt sun oct 18 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 will persist through this week, weakening slightly 
from 30.50 inches to 30.30 inches.


lez164>168-190815-
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-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-
945 pm edt sun oct 18 2026

.overnight...south winds 10 to 15 knots becoming southwest.
waves 1 to 3 feet. 
.monday...southwest winds 10 knots or less becoming west. waves
2 feet or less. 
.monday night...light and variable winds becoming northeast 5 to
10 knots. waves 1 foot or less. 
.tuesday...northeast winds 5 to 15 knots. waves 2 feet or less. 
.tuesday night...northeast winds 15 to 20 knots becoming east
10 to 15 knots. waves 1 to 3 feet. 
.wednesday...east winds 10 knots or less becoming north. waves
2 feet or less. 
.thursday...north winds 5 to 15 knots becoming northeast 15 to
20 knots. waves 2 feet or less. 
.friday...northeast winds 15 to 20 knots becoming southeast 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 

$$

fzus61 kcle 190145
glfle 
expires:202610190815;;338690

open lake forecast for lake erie
national weather service cleveland oh
945 pm edt sun oct 18 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 will persist through this week, weakening slightly 
from 30.50 inches to 30.30 inches.


lez061-169-190815-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
945 pm edt sun oct 18 2026

.overnight...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.monday...southwest winds 5 to 10 knots becoming west. waves 1 to
2 feet. 
.monday night...west winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.tuesday...northeast winds 5 to 15 knots. waves 2 feet or less. 
.tuesday night...northeast winds 10 to 15 knots becoming east.
waves 1 to 3 feet. 
.wednesday...east winds 10 knots or less becoming northeast.
waves 2 feet or less. 
.thursday...north winds less than 10 knots becoming northeast
10 to 15 knots. waves 2 feet or less. 
.friday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet. 

$$

fzus63 kdtx 190139
glfsc 
expires:202610191000;;338627

lake st clair forecast
national weather service detroit/pontiac mi
939 pm edt sun oct 18 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...a ridge of high pressure over the mid-atlantic
produces gusty southwesterly winds through the evening as deep
low pressure tracks across hudson bay. the high pressure then
drifts into the great lakes and stalls through the middle of the
week.


lcz460-191000-
lake st clair-
939 pm edt sun oct 18 2026

.rest of tonight...southwest winds 10 to 15 knots diminishing to 5
to 10 knots early in the morning. clear. waves 2 feet or less.
.monday...southwest winds 5 to 10 knots in the morning becoming
light and variable. sunny. waves 2 feet or less.
.monday night...light and variable winds becoming north 5 to 10
knots after midnight. mostly clear. waves nearly calm.
.tuesday...northeast winds 5 to 10 knots until late afternoon
becoming light and variable. partly sunny until late afternoon then
clearing. waves 2 feet or less.
.tuesday night...northeast winds 5 to 10 knots. clear. waves 2 feet
or less.
.wednesday...northeast winds 5 to 10 knots in the morning becoming
light and variable. clear. waves 2 feet or less.
.thursday...north winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.friday...east winds 10 to 15 knots. clear. waves 2 feet or less.

$$

fzus63 kdtx 190138
glflh 
expires:202610191000;;338625

open lake forecast for lake huron
national weather service detroit/pontiac mi
938 pm edt sun oct 18 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...a ridge of high pressure over the mid-atlantic
produces gusty southwesterly winds through the evening as deep
low pressure tracks across hudson bay. the high pressure then
drifts into the great lakes and stalls through the middle of the
week.


lhz462>464-191000-
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-
938 pm edt sun oct 18 2026

.rest of tonight...southwest winds 15 to 20 knots decreasing to
10 to 15 knots early in the morning. waves 3 to 5 feet. 
.monday...southwest winds 10 to 15 knots becoming light and
variable. waves 1 to 3 feet. 
.monday night...light and variable winds becoming northeast 5 to
10 knots after midnight. waves 2 feet or less. 
.tuesday...northeast winds 5 to 10 knots until late afternoon
becoming light and variable. waves 2 feet or less. 
.tuesday night...north winds 5 to 10 knots veering to the east by
midnight...then becoming southeast 10 to 15 knots after midnight.
waves 2 feet or less. 
.wednesday...southeast winds 5 to 10 knots becoming light and
variable...then becoming southwest 5 to 10 knots late in the
evening. waves 2 feet or less. 
.thursday...west winds 5 to 10 knots becoming 10 to 15 knots .
waves 2 feet or less. 
.friday...northeast winds 10 to 15 knots becoming east 5 to
10 knots until early evening...then increasing to 10 to 15 knots
by midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 190138
glflh 
expires:202610191000;;338624

open lake forecast for lake huron
national weather service detroit/pontiac mi
938 pm edt sun oct 18 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...a ridge of high pressure over the mid-atlantic
produces gusty southwesterly winds through the evening as deep
low pressure tracks across hudson bay. the high pressure then
drifts into the great lakes and stalls through the middle of the
week.


lhz362-363-191000-
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-
938 pm edt sun oct 18 2026

.rest of tonight...southwest winds 20 to 25 knots with gusts to
30 knots decreasing to 15 to 20 knots with gusts to around 30 
knots after midnight. waves 5 to 7 feet. waves occasionally around
10 feet. 
.monday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. waves 3 to 5 feet subsiding to 1 to
3 feet in the afternoon. 
.monday night...light and variable winds becoming northeast 5 to
10 knots after midnight. waves 2 feet or less. 
.tuesday...east winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and afternoon. waves 1 to 3 feet. 
.tuesday night...northeast winds 5 to 10 knots veering to the
southeast after midnight. waves 2 feet or less. 
.wednesday...south winds 5 to 10 knots. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots becoming northeast 10 to
15 knots by midnight. waves 2 feet or less. 
.friday...east winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kdtx 190138
glflh 
expires:202610191000;;338623

open lake forecast for lake huron
national weather service detroit/pontiac mi
938 pm edt sun oct 18 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...a ridge of high pressure over the mid-atlantic
produces gusty southwesterly winds through the evening as deep
low pressure tracks across hudson bay. the high pressure then
drifts into the great lakes and stalls through the middle of the
week.


lhz361-191000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
938 pm edt sun oct 18 2026

.rest of tonight...southwest winds 15 to 20 knots with gusts to
around 30 knots decreasing to 10 to 15 knots early in the
morning. waves 2 to 4 feet. 
.monday...southwest winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet. 
.monday night...light and variable winds becoming north 5 to
10 knots by midnight...then veering to the east after midnight.
waves 2 feet or less. 
.tuesday...east winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday night...southeast winds 5 to 10 knots. waves 2 feet or
less. 
.wednesday...south winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.thursday...light and variable winds becoming northeast 5 to
10 knots in the late morning and early afternoon...then becoming
light and variable early in the evening becoming east 5 to
10 knots by midnight. waves 2 feet or less. 
.friday...east winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kmkx 190222
glflm 
expires:202610190915;;340016

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
922 pm cdt sun oct 18 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...

strong low pressure around 29.0 inches will continue to move over
hudson bay tonight while high pressure around 30.6 remains in
place over the northeastern us and ohio river valley. southwest 
gales are expected across the northern half of lake michigan until
just after midnight cdt. a gale warning is in effect during this 
period. the southwest gales will diminish tonight ahead of an 
approaching high pressure around 30.5 inches from the northern
great plains. light and variable winds will develop across lake 
michigan monday night through tuesday afternoon.


lmz080-669-671-673-675-777-779-870-872-874-876-878-190915-
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-
922 pm cdt sun oct 18 2026

sheboygan wi to pentwater mi south...

.rest of tonight...southwest winds to 30 kt diminishing to 10 to
20 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.monday...southwest winds 10 to 20 kt diminishing to 10 to 15 kt
late in the morning, then becoming south early in the afternoon
becoming south 5 to 10 kt late. waves 3 to 5 ft subsiding to 1 to
3 ft. 
.monday night...southeast winds 5 to 10 kt becoming east. waves
1 to 2 ft. 
.tuesday...east winds 5 to 10 kt. waves 1 ft or less. 
.tuesday night...east winds 5 to 10 kt becoming south. waves 1 to
2 ft. 
.wednesday...south winds 10 to 15 kt. waves 1 to 2 ft. 
.wednesday night...south winds 5 to 10 kt becoming west. waves
1 to 2 ft. 
.thursday...north winds 5 to 10 kt. waves 1 ft or less. 
.friday...southeast winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 190222
glflm 
expires:202610190915;;340014

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
922 pm cdt sun oct 18 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...

strong low pressure around 29.0 inches will continue to move over
hudson bay tonight while high pressure around 30.6 remains in
place over the northeastern us and ohio river valley. southwest 
gales are expected across the northern half of lake michigan until
just after midnight cdt. a gale warning is in effect during this 
period. the southwest gales will diminish tonight ahead of an 
approaching high pressure around 30.5 inches from the northern
great plains. light and variable winds will develop across lake 
michigan monday night through tuesday afternoon.


lmz261-362-364-563-190915-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
922 pm cdt sun oct 18 2026

sturgeon bay wi to point betsie mi north...

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

.rest of tonight...southwest gales to 40 kt diminishing to 30 kt.
waves 10 to 14 ft occasionally to 18 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.monday...west winds 10 to 20 kt becoming northwest 10 to 15 kt
late in the morning, then diminishing to 5 to 10 kt early in the
afternoon becoming northeast late. waves 4 to 6 ft occasionally
to 8 ft subsiding to 1 to 3 ft. 
.monday night...northeast winds 5 to 10 kt increasing to 10 to
15 kt late in the evening, then becoming east after midnight
becoming east 10 to 15 kt late. waves 1 to 3 ft. 
.tuesday...southeast winds 10 to 15 kt. waves 1 to 2 ft. 
.tuesday night...southeast winds 10 to 15 kt becoming south.
waves 1 to 2 ft. 
.wednesday...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.wednesday night...southwest winds 10 to 15 kt veering to north.
waves 1 to 2 ft. 
.thursday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 ft or less. 
.friday...southeast winds 10 to 15 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 190222
glflm 
expires:202610190915;;340015

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
922 pm cdt sun oct 18 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...

strong low pressure around 29.0 inches will continue to move over
hudson bay tonight while high pressure around 30.6 remains in
place over the northeastern us and ohio river valley. southwest 
gales are expected across the northern half of lake michigan until
just after midnight cdt. a gale warning is in effect during this 
period. the southwest gales will diminish tonight ahead of an 
approaching high pressure around 30.5 inches from the northern
great plains. light and variable winds will develop across lake 
michigan monday night through tuesday afternoon.


lmz366-565-567-868-190915-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
922 pm cdt sun oct 18 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

...gale warning in effect until 10 pm cdt this evening...

.rest of tonight...southwest gales to 35 kt diminishing to 15 to
25 kt. waves 8 to 11 ft occasionally to 14 ft subsiding to 6 to
9 ft occasionally to 12 ft. 
.monday...west winds 10 to 20 kt diminishing to 5 to 10 kt late
in the morning, then becoming southwest early in the afternoon
becoming southeast late. waves 4 to 6 ft occasionally to 8 ft
subsiding to 1 to 3 ft. 
.monday night...east winds less than 10 kt increasing to 5 to
10 kt. waves 1 to 2 ft. 
.tuesday...southeast winds 5 to 10 kt becoming south. waves 1 to
2 ft. 
.tuesday night...south winds 5 to 10 kt. waves 1 ft or less.
.wednesday...southwest winds 10 to 15 kt becoming south. waves
1 to 2 ft. 
.wednesday night...southwest winds 5 to 10 kt veering to
northwest. waves 1 to 2 ft. 
.thursday...north winds 5 to 10 kt becoming northeast. waves 1 ft
or less. 
.friday...southeast winds 10 to 15 kt. waves 1 to 3 ft.  

$$

fzus63 kmqt 190201
glfls 
expires:202610190800;;338990

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sun oct 18 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...


a 29.1 inch low over northern ontario will track east over the 
hudson bay tonight and a 30.3 inch high will build over lake 
superior through monday afternoon. high pressure will slowly shift 
east and gradually strengthens to 30.5 inches over quebec through 
tuesday night. ridging then weakens to 30.1 inches over the lake on 
wednesday as a 29.7 inch trough crosses hudson bay. high pressure 
will build back over the lake wednesday night into thursday, 
reaching 30.3 inches.




lsz267-190800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt sun oct 18 2026

.rest of tonight...southwest winds 20 to 30 knots becoming west
10 to 20 knots late. waves 3 to 6 feet occasionally to 8 feet
subsiding to 2 to 4 feet. 
.monday...northwest winds 10 to 20 knots becoming north 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.monday night...north winds 5 to 15 knots veering east after
midnight, then increasing to 10 to 20 knots late. waves calm to
2 feet. 
.tuesday...southeast winds 10 to 20 knots. waves calm to 2 feet. 
.tuesday night...south winds 15 to 25 knots. waves building to
1 to 3 feet, then subsiding to calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots veering southeast.
waves calm to 2 feet. 
.friday...southeast winds 10 to 20 knots becoming south 15 to
25 knots. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 190201
glfls 
expires:202610190800;;338985

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sun oct 18 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...


a 29.1 inch low over northern ontario will track east over the 
hudson bay tonight and a 30.3 inch high will build over lake 
superior through monday afternoon. high pressure will slowly shift 
east and gradually strengthens to 30.5 inches over quebec through 
tuesday night. ridging then weakens to 30.1 inches over the lake on 
wednesday as a 29.7 inch trough crosses hudson bay. high pressure 
will build back over the lake wednesday night into thursday, 
reaching 30.3 inches.




lsz162-190800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt sun oct 18 2026 /901 pm cdt sun oct 18 2026/

.rest of tonight...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then veering northwest late. waves 2 to
4 feet subsiding to calm to 2 feet. 
.monday...north winds 5 to 15 knots veering northeast in the
afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots. waves calm to 2 feet.
.wednesday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...east winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots becoming south 15 to 25 knots.
waves building to 2 to 4 feet. 

$$

fzus63 kmqt 190201
glfls 
expires:202610190800;;338987

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sun oct 18 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...


a 29.1 inch low over northern ontario will track east over the 
hudson bay tonight and a 30.3 inch high will build over lake 
superior through monday afternoon. high pressure will slowly shift 
east and gradually strengthens to 30.5 inches over quebec through 
tuesday night. ridging then weakens to 30.1 inches over the lake on 
wednesday as a 29.7 inch trough crosses hudson bay. high pressure 
will build back over the lake wednesday night into thursday, 
reaching 30.3 inches.




lsz264-190800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt sun oct 18 2026

.rest of tonight...west winds 15 to 25 knots becoming northwest
5 to 15 knots late. waves 4 to 7 feet occasionally to 9 feet
subsiding to 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots becoming north less than
10 knots in the afternoon, then increasing to 5 to 15 knots late.
waves subsiding to calm to 2 feet. 
.monday night...east winds less than 10 knots becoming southeast
5 to 15 knots late. waves calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots veering southwest
after midnight. waves building to 1 to 3 feet. 
.wednesday...southwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots veering southeast. waves
calm to 2 feet. 
.friday...southeast winds 10 to 20 knots becoming south 15 to
25 knots. waves building to 3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 190201
glfls 
expires:202610190800;;338986

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sun oct 18 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...


a 29.1 inch low over northern ontario will track east over the 
hudson bay tonight and a 30.3 inch high will build over lake 
superior through monday afternoon. high pressure will slowly shift 
east and gradually strengthens to 30.5 inches over quebec through 
tuesday night. ridging then weakens to 30.1 inches over the lake on 
wednesday as a 29.7 inch trough crosses hudson bay. high pressure 
will build back over the lake wednesday night into thursday, 
reaching 30.3 inches.




lsz263-190800-
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 sun oct 18 2026

.rest of tonight...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight, then becoming northwest 5 to 15 knots
late. waves 3 to 6 feet occasionally to 8 feet subsiding to calm
to 2 feet. 
.monday...north winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots veering southeast late.
waves calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots veering southwest
after midnight. waves building to 1 to 3 feet. 
.wednesday...southwest winds 5 to 15 knots veering west by mid
afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...east winds 5 to 15 knots veering southeast. waves
calm to 2 feet. 
.friday...southeast winds 5 to 15 knots becoming south 15 to
25 knots. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 190201
glfls 
expires:202610190800;;338988

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sun oct 18 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...


a 29.1 inch low over northern ontario will track east over the 
hudson bay tonight and a 30.3 inch high will build over lake 
superior through monday afternoon. high pressure will slowly shift 
east and gradually strengthens to 30.5 inches over quebec through 
tuesday night. ridging then weakens to 30.1 inches over the lake on 
wednesday as a 29.7 inch trough crosses hudson bay. high pressure 
will build back over the lake wednesday night into thursday, 
reaching 30.3 inches.




lsz265-190800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt sun oct 18 2026

.rest of tonight...southwest winds 15 to 25 knots veering west
after midnight, then diminishing to 5 to 15 knots late. waves
1 to 3 feet subsiding to calm to 2 feet. 
.monday...northwest winds 5 to 15 knots veering northeast late.
waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots veering southeast late.
waves calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots veering southwest
after midnight. waves calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots becoming southeast 10 to
20 knots. waves calm to 2 feet. 
.friday...southeast winds 15 to 25 knots veering south. waves
building to 2 to 4 feet. 

$$

fzus63 kmqt 190201
glfls 
expires:202610190800;;338989

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sun oct 18 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...


a 29.1 inch low over northern ontario will track east over the 
hudson bay tonight and a 30.3 inch high will build over lake 
superior through monday afternoon. high pressure will slowly shift 
east and gradually strengthens to 30.5 inches over quebec through 
tuesday night. ridging then weakens to 30.1 inches over the lake on 
wednesday as a 29.7 inch trough crosses hudson bay. high pressure 
will build back over the lake wednesday night into thursday, 
reaching 30.3 inches.




lsz266-190800-
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 sun oct 18 2026

.rest of tonight...southwest winds 15 to 25 knots becoming west
10 to 20 knots late. waves 4 to 7 feet occasionally to 9 feet
subsiding to 2 to 4 feet. 
.monday...northwest winds 10 to 20 knots becoming north 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.monday night...northeast winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...south winds 15 to 25 knots. waves building to
1 to 3 feet. 
.wednesday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots veering southeast.
waves calm to 2 feet. 
.friday...south winds 15 to 25 knots increasing to 20 to
30 knots. waves building to 3 to 5 feet occasionally to 7 feet. 

$$