fzus61 kbuf 110802
glflo 
expires:202610111500;;901603

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun oct 11 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 high pressure ridge averaging 30.1 inches exits slowly 
eastward today. a weak trough averaging 29.8 inches slides eastward 
across the lake tonight. behind the trough, a weak ridge averaging 
29.9 inches slides eastward across the lake on monday, exits 
eastward monday night, and is followed by a cold front sweeping 
southeastward across the lake on tuesday. behind the cold front, a 
ridge averaging 30.0 inches builds from northern ontario through 
thursday.


loz063>065-111500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt sun oct 11 2026

.today...southeast winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of rain early this afternoon. rain likely
late. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...southeast winds 10 knots or less. rain in the evening,
then a chance of rain after midnight. waves 2 feet or less. 
.monday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.monday night...southwest winds 5 to 15 knots becoming south. a
chance of showers overnight. waves 2 feet or less. 
.tuesday...south winds 15 to 20 knots becoming northwest. showers
with a chance of thunderstorms. waves 1 to 3 feet building to
2 to 4 feet. 
.wednesday...northwest winds 5 to 15 knots becoming north 15 to
20 knots. waves 1 to 3 feet. 
.thursday...north winds 10 to 15 knots becoming southeast 15 to
20 knots. a chance of showers thursday night. waves 1 to 3 feet
building to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 110802
glflo 
expires:202610111500;;901602

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun oct 11 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 high pressure ridge averaging 30.1 inches exits slowly 
eastward today. a weak trough averaging 29.8 inches slides eastward 
across the lake tonight. behind the trough, a weak ridge averaging 
29.9 inches slides eastward across the lake on monday, exits 
eastward monday night, and is followed by a cold front sweeping 
southeastward across the lake on tuesday. behind the cold front, a 
ridge averaging 30.0 inches builds from northern ontario through 
thursday.


loz062-111500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt sun oct 11 2026

.today...southeast winds 5 to 15 knots becoming east. a chance of
rain. rain late. waves 1 to 2 feet. 
.tonight...east winds 5 to 15 knots becoming northeast less than
10 knots. rain early, then a chance of rain late in the evening.
waves 1 to 2 feet. 
.monday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.monday night...southwest winds 5 to 15 knots. a chance of
showers overnight. waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots becoming northwest.
showers. waves 1 to 3 feet building to 2 to 4 feet. 
.wednesday...northwest winds 5 to 15 knots becoming north. waves
1 to 2 feet. 
.thursday...northeast winds 10 to 15 knots becoming southeast
15 to 20 knots. a chance of showers thursday night. waves 1 to
3 feet. 

$$

fzus61 kcle 110747
glfle 
expires:202610111415;;901209

open lake forecast for lake erie
national weather service cleveland oh
347 am edt sun oct 11 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...
the remnant low of isaias 29.90 inches will move northeast 
through the central appalachians today then offshore of the mid 
atlantic by monday. a cold front with pressure of 29.70 inches 
will settle south across lake erie by tuesday night. high pressure
of 30.30 inches will build over the upper great lakes on 
wednesday and thursday.


lez162-163-111415-
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-
347 am edt sun oct 11 2026

.today...southeast winds 15 to 20 knots becoming northeast 5 to
15 knots. showers this morning, then a chance of showers early
this afternoon. a slight chance of showers late. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tonight...northeast winds 10 knots or less becoming northwest.
waves 2 feet or less. 
.monday...west winds 5 to 10 knots becoming south. waves 1 foot
or less. 
.monday night...south winds 10 to 15 knots becoming southwest
15 to 20 knots. a chance of showers overnight. waves 1 to 3 feet.
.tuesday...southwest winds 15 to 20 knots becoming northwest and
diminishing to around 10 knots. waves 1 to 3 feet. 
.wednesday...north winds 5 to 15 knots becoming northeast 15 to
20 knots. a chance of showers during the day. waves 1 to 3 feet. 
.thursday...northeast winds 10 to 15 knots becoming south 15 to
20 knots. a chance of showers during the day, then showers likely
thursday night. waves 2 to 4 feet. 

$$

fzus61 kcle 110747
glfle 
expires:202610111415;;901210

open lake forecast for lake erie
national weather service cleveland oh
347 am edt sun oct 11 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...
the remnant low of isaias 29.90 inches will move northeast 
through the central appalachians today then offshore of the mid 
atlantic by monday. a cold front with pressure of 29.70 inches 
will settle south across lake erie by tuesday night. high pressure
of 30.30 inches will build over the upper great lakes on 
wednesday and thursday.


lez164-165-111415-
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-
347 am edt sun oct 11 2026

.today...southeast winds 15 to 20 knots becoming northeast 10 to
15 knots. showers through early afternoon, then a chance of
showers late. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...northeast winds 5 to 10 knots becoming northwest. a
slight chance of showers early. waves 1 to 2 feet. 
.monday...west winds 5 to 10 knots becoming south. waves around
1 foot. 
.monday night...south winds 10 to 15 knots becoming southwest
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...north winds 10 to 15 knots becoming northeast 15 to
20 knots. a chance of showers during the day. waves 1 to 3 feet. 
.thursday...northeast winds 15 to 20 knots becoming south. a
chance of showers during the day, then showers likely thursday
night. waves 3 to 5 feet. 

$$

fzus61 kcle 110747
glfle 
expires:202610111415;;901211

open lake forecast for lake erie
national weather service cleveland oh
347 am edt sun oct 11 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...
the remnant low of isaias 29.90 inches will move northeast 
through the central appalachians today then offshore of the mid 
atlantic by monday. a cold front with pressure of 29.70 inches 
will settle south across lake erie by tuesday night. high pressure
of 30.30 inches will build over the upper great lakes on 
wednesday and thursday.


lez061-166>169-111415-
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-
347 am edt sun oct 11 2026

.today...southeast winds 15 to 20 knots becoming east 10 to
15 knots. showers through early afternoon, then a chance of
showers late. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tonight...east winds 5 to 15 knots becoming north. a slight
chance of showers early. waves 2 feet or less. 
.monday...northwest winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.monday night...south winds 10 to 15 knots becoming southwest
15 to 20 knots. a chance of showers overnight. waves 1 to 2 feet
building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of showers. waves 3 to 5 feet subsiding
to 2 to 4 feet. 
.wednesday...northwest winds 5 to 15 knots becoming northeast
15 to 20 knots. waves 1 to 3 feet. 
.thursday...northeast winds 15 to 20 knots becoming south.
showers likely thursday night. waves 2 to 4 feet building to 3 to
5 feet. 

$$

fzus63 kdtx 110745
glfsc 
expires:202610111545;;901156

lake st clair forecast
national weather service detroit/pontiac mi
345 am edt sun oct 11 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...remnants from hurricane isaias, 29.80 inches, will
move from the ohio river valley into new england today. low
pressure, 29.60 inches, will then push from the central plains
into the great lakes tuesday morning, bringing the next potential
for showers and isolated thunderstorms.


lcz460-111545-
lake st clair-
345 am edt sun oct 11 2026

.today...southeast winds 10 to 15 knots becoming east 5 to 10 knots
in the afternoon. mostly cloudy. a chance of light rain early in the
morning...then light rain likely late in the morning. a chance of
light rain early in the afternoon. waves 2 feet or less.
.tonight...light and variable winds. mostly cloudy this evening
becoming partly cloudy. patchy fog after midnight. waves 2 feet or
less.
.monday...southwest winds 5 to 10 knots becoming south 10 to 15
knots early in the afternoon. partly sunny. patchy dense fog early
in the morning. waves 2 feet or less.
.monday night...southwest winds 10 to 15 knots. partly cloudy. a
chance of light rain and thunderstorms after midnight. waves 1 to 3
feet.
.tuesday...southwest winds 15 to 20 knots becoming west 10 to 15
knots in the afternoon and evening. mostly sunny becoming partly
cloudy. a chance of light rain. waves 1 to 3 feet.
.wednesday...northeast winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
.thursday...east winds 15 to 20 knots. partly cloudy. a chance of
light rain. waves 1 to 3 feet.

$$

fzus63 kdtx 110743
glflh 
expires:202610111545;;901152

open lake forecast for lake huron
national weather service detroit/pontiac mi
343 am edt sun oct 11 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...remnants from hurricane isaias, 29.80 inches, will
move from the ohio river valley into new england today. low
pressure, 29.60 inches, will then push from the central plains
into the great lakes tuesday morning, bringing the next potential
for rain showers and isolated thunderstorms.


lhz463-464-111545-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
343 am edt sun oct 11 2026

.today...southeast winds 10 to 15 knots decreasing to 5 to
10 knots late in the afternoon. waves 2 to 4 feet subsiding to
1 to 3 feet in the late morning and afternoon. 
.tonight...east winds 5 to 10 knots early in the evening becoming
light and variable...then becoming southwest 5 to 10 knots early
in the morning. patchy dense fog after midnight. waves 2 feet or
less. 
.monday...southwest winds 5 to 10 knots becoming south 10 to
15 knots in the late morning and afternoon. waves 2 feet or less.
.monday night...south winds 10 to 15 knots. rain likely after
midnight. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.tuesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots late in the afternoon...then becoming north 10 to
15 knots late in the evening. rain likely. waves 2 to 4 feet
building to 3 to 5 feet late in the afternoon. 
.wednesday...north winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.thursday...northeast winds 10 to 15 knots becoming east 15 to
20 knots . a chance of rain by midnight. waves 3 to 5 feet. 


$$

fzus63 kdtx 110743
glflh 
expires:202610111545;;901151

open lake forecast for lake huron
national weather service detroit/pontiac mi
343 am edt sun oct 11 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...remnants from hurricane isaias, 29.80 inches, will
move from the ohio river valley into new england today. low
pressure, 29.60 inches, will then push from the central plains
into the great lakes tuesday morning, bringing the next potential
for rain showers and isolated thunderstorms.


lhz363-462-111545-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
343 am edt sun oct 11 2026

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


$$

fzus63 kdtx 110743
glflh 
expires:202610111545;;901150

open lake forecast for lake huron
national weather service detroit/pontiac mi
343 am edt sun oct 11 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...remnants from hurricane isaias, 29.80 inches, will
move from the ohio river valley into new england today. low
pressure, 29.60 inches, will then push from the central plains
into the great lakes tuesday morning, bringing the next potential
for rain showers and isolated thunderstorms.


lhz361-362-111545-
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-
343 am edt sun oct 11 2026

.today...south winds 10 to 15 knots. waves 3 to 5 feet. 
.tonight...south winds 10 to 15 knots decreasing to 5 to 10 knots
after midnight. waves 2 to 4 feet subsiding to 1 to 3 feet in the
late evening and overnight. 
.monday...south winds 5 to 10 knots backing to the east early in
the afternoon. waves 1 to 3 feet. 
.monday night...east winds 10 to 15 knots. a chance of rain in
the evening...then rain likely after midnight. waves 2 to 4 feet.
.tuesday...northeast winds 10 to 15 knots backing to the north
late in the afternoon...then becoming northwest 5 to 10 knots
late in the evening. rain likely in the morning. rain late in the
morning. waves 2 to 4 feet. 
.wednesday...northwest winds 5 to 10 knots increasing to 10 to
15 knots. waves 1 to 3 feet. 
.thursday...northeast winds 10 to 15 knots veering to the east
early in the evening...then becoming southeast 15 to 20 knots by
midnight. a chance of rain . waves 1 to 3 feet building to 4 to
6 feet. waves occasionally around 8 feet. 


$$

fzus63 kmkx 110733
glflm 
expires:202610111515;;900838

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
233 am cdt sun oct 11 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure will continue weakening to around 29.7 inches by 
dawn. south winds will slowly decelerate in the process. 

light to modest south winds continue through monday as oblong low
pressure lingers over the high plains and upper mississippi river
valley. this low pressure, around 29.6 inches, will tighten up 
and track northeastward across central lake mi late monday into 
early tuesday, with rain showers likely and chances for 
thunderstorms. northwest winds arrive behind the associated cold 
front into tuesday, veering northerly or even northeasterly into 
wednesday. 

a stronger low pressure system is possible later this week, which
could bring gusty east to southeast winds and shower / storm 
chances into thursday. the associated cold front and incoming 
strong high pressure may then yield gusty northwest winds friday 
into saturday, with gales possible.


lmz080-669-671-673-675-777-779-870-872-874-876-878-111515-
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-
233 am cdt sun oct 11 2026

sheboygan wi to pentwater mi south...

.today...southeast winds 10 to 20 kt becoming south. waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.tonight...south winds 10 to 20 kt. waves 2 to 4 ft. 
.monday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.monday night...southwest winds 10 to 20 kt. chance of showers.
waves 3 to 5 ft. 
.tuesday...west winds 10 to 20 kt becoming northwest 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.tuesday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...north winds 10 to 20 kt. waves 3 to 5 ft. 
.thursday...east winds 15 to 25 kt. chance of showers. waves 5 to
8 ft occasionally to 10 ft.  

$$

fzus63 kmkx 110733
glflm 
expires:202610111515;;900837

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
233 am cdt sun oct 11 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure will continue weakening to around 29.7 inches by 
dawn. south winds will slowly decelerate in the process. 

light to modest south winds continue through monday as oblong low
pressure lingers over the high plains and upper mississippi river
valley. this low pressure, around 29.6 inches, will tighten up 
and track northeastward across central lake mi late monday into 
early tuesday, with rain showers likely and chances for 
thunderstorms. northwest winds arrive behind the associated cold 
front into tuesday, veering northerly or even northeasterly into 
wednesday. 

a stronger low pressure system is possible later this week, which
could bring gusty east to southeast winds and shower / storm 
chances into thursday. the associated cold front and incoming 
strong high pressure may then yield gusty northwest winds friday 
into saturday, with gales possible.


lmz261-362-364-366-563-565-567-868-111515-
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-
233 am cdt sun oct 11 2026

sheboygan wi to pentwater mi north...

.today...south winds to 30 kt diminishing to 15 to 25 kt. waves
5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.monday...south winds 10 to 20 kt becoming southeast 15 to 25 kt.
waves 3 to 5 ft. 
.monday night...southeast winds 15 to 25 kt becoming northeast
10 to 20 kt. chance of showers in the evening, then showers
overnight. waves 3 to 5 ft. 
.tuesday...northeast winds 10 to 20 kt becoming north 15 to
25 kt. chance of showers. waves 4 to 6 ft occasionally to 8 ft. 
.tuesday night...north winds 15 to 25 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.thursday...east winds 10 to 20 kt becoming southeast 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft building to 4 to 7 ft
occasionally to 9 ft.  

$$

fzus63 kmqt 110806 cca
glfls 
expires:202610112000;;901903

open lake forecast for lake superior...corrected
national weather service marquette mi
406 am edt sun oct 11 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...

lake superior is currently between a 30.5 inch high offshore of new 
england and a 29.6 inch low stretched out from northern mn through 
south dakota. through the daytime hours, the low splits and weakens 
into a pair of 29.7 inch lows, one that remains in the central 
plains and another that moves across northern ontario. this will 
drag a 29.8 inch low across lake superior tonight into monday 
morning as 30.3 inch high pressure expands across the ontario and 
manitoba shores of hudson bay. by monday night, the high will weaken 
to 30.2 inches over quebec as the plains low moves into the upper 
great lakes region at 29.7 inches. as the low escapes to new england 
tuesday into wednesday morning, a new 30.2 inch high forms over the 
dakotas, moving over lake superior at 30.3 inches wednesday night. 
thursday, the high shifts to the eastern great lakes as a 29.8 inch 
alberta clipper moves over lake winnipeg.




lsz162-112000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
406 am edt sun oct 11 2026 /306 am cdt sun oct 11 2026/

...gale watch in effect from late tonight through monday
evening...

.early this morning...southwest winds 15 to 25 knots. waves 2 to
4 feet. 
.today...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.tonight...northeast winds 15 to 25 knots increasing to gales to
35 knots. a slight chance of showers. waves building to 5 to
8 feet occasionally to 10 feet. 
.monday...northeast gales to 35 knots. a chance of showers. waves
building to 6 to 9 feet occasionally to 11 feet, then subsiding
to 4 to 7 feet occasionally to 9 feet. 
.monday night...northeast winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. showers. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.tuesday...northeast winds 10 to 20 knots becoming north 5 to
15 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 5 to 15 knots. waves subsiding
to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots veering east. waves
calm to 2 feet. 
.thursday...southeast winds 10 to 20 knots becoming west gales to
35 knots. a chance of showers. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 110806 cca
glfls 
expires:202610112000;;901904

open lake forecast for lake superior...corrected
national weather service marquette mi
406 am edt sun oct 11 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...

lake superior is currently between a 30.5 inch high offshore of new 
england and a 29.6 inch low stretched out from northern mn through 
south dakota. through the daytime hours, the low splits and weakens 
into a pair of 29.7 inch lows, one that remains in the central 
plains and another that moves across northern ontario. this will 
drag a 29.8 inch low across lake superior tonight into monday 
morning as 30.3 inch high pressure expands across the ontario and 
manitoba shores of hudson bay. by monday night, the high will weaken 
to 30.2 inches over quebec as the plains low moves into the upper 
great lakes region at 29.7 inches. as the low escapes to new england 
tuesday into wednesday morning, a new 30.2 inch high forms over the 
dakotas, moving over lake superior at 30.3 inches wednesday night. 
thursday, the high shifts to the eastern great lakes as a 29.8 inch 
alberta clipper moves over lake winnipeg.




lsz263-112000-
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-
406 am edt sun oct 11 2026

...gale watch in effect from late tonight through monday
evening...

.early this morning...south winds 15 to 25 knots. waves 3 to
5 feet occasionally to 7 feet. 
.today...southwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then veering west late. waves
subsiding to calm to 2 feet. 
.tonight...northeast winds 15 to 25 knots increasing to gales to
35 knots. a chance of showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.monday...northeast gales to 35 knots diminishing to 20 to
30 knots in the afternoon. a chance of showers. waves building to
6 to 9 feet occasionally to 11 feet, then subsiding to 4 to
7 feet occasionally to 9 feet. 
.monday night...northeast winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. showers. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.tuesday...northeast winds 10 to 20 knots becoming north 5 to
15 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 5 to 15 knots. waves subsiding
to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots veering east. waves
calm to 2 feet. 
.thursday...southeast winds 15 to 25 knots becoming west gales to
40 knots. a chance of showers. waves building to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 110806 cca
glfls 
expires:202610112000;;901905

open lake forecast for lake superior...corrected
national weather service marquette mi
406 am edt sun oct 11 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...

lake superior is currently between a 30.5 inch high offshore of new 
england and a 29.6 inch low stretched out from northern mn through 
south dakota. through the daytime hours, the low splits and weakens 
into a pair of 29.7 inch lows, one that remains in the central 
plains and another that moves across northern ontario. this will 
drag a 29.8 inch low across lake superior tonight into monday 
morning as 30.3 inch high pressure expands across the ontario and 
manitoba shores of hudson bay. by monday night, the high will weaken 
to 30.2 inches over quebec as the plains low moves into the upper 
great lakes region at 29.7 inches. as the low escapes to new england 
tuesday into wednesday morning, a new 30.2 inch high forms over the 
dakotas, moving over lake superior at 30.3 inches wednesday night. 
thursday, the high shifts to the eastern great lakes as a 29.8 inch 
alberta clipper moves over lake winnipeg.




lsz264-112000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
406 am edt sun oct 11 2026

.early this morning...south winds 15 to 25 knots. waves 3 to
6 feet occasionally to 8 feet. 
.today...southwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then becoming north 5 to 15 knots
late. waves subsiding to 1 to 3 feet. 
.tonight...northeast winds 10 to 20 knots increasing to 20 to
30 knots after midnight. a chance of showers. waves subsiding to
calm to 2 feet, then building to 5 to 8 feet occasionally to
10 feet. 
.monday...northeast winds 20 to 30 knots. showers through early
afternoon, then a slight chance of showers by mid afternoon.
waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.monday night...northeast winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. showers. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.tuesday...northeast winds 10 to 20 knots becoming north 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.wednesday...northwest winds 5 to 15 knots veering east. waves
calm to 2 feet. 
.thursday...southeast winds 15 to 25 knots becoming south gales
to 40 knots. showers likely. waves building to 4 to 7 feet
occasionally to 9 feet. 

$$

fzus63 kmqt 110806 cca
glfls 
expires:202610112000;;901906

open lake forecast for lake superior...corrected
national weather service marquette mi
406 am edt sun oct 11 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...

lake superior is currently between a 30.5 inch high offshore of new 
england and a 29.6 inch low stretched out from northern mn through 
south dakota. through the daytime hours, the low splits and weakens 
into a pair of 29.7 inch lows, one that remains in the central 
plains and another that moves across northern ontario. this will 
drag a 29.8 inch low across lake superior tonight into monday 
morning as 30.3 inch high pressure expands across the ontario and 
manitoba shores of hudson bay. by monday night, the high will weaken 
to 30.2 inches over quebec as the plains low moves into the upper 
great lakes region at 29.7 inches. as the low escapes to new england 
tuesday into wednesday morning, a new 30.2 inch high forms over the 
dakotas, moving over lake superior at 30.3 inches wednesday night. 
thursday, the high shifts to the eastern great lakes as a 29.8 inch 
alberta clipper moves over lake winnipeg.




lsz265-112000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
406 am edt sun oct 11 2026

.early this morning...south winds 20 to 30 knots. waves 2 to
4 feet. 
.today...south winds 20 to 30 knots diminishing to 5 to 15 knots.
waves subsiding to calm to 2 feet. 
.tonight...north winds 10 to 20 knots becoming northeast 15 to
25 knots late. a slight chance of showers after midnight. waves
building to 3 to 5 feet occasionally to 7 feet. 
.monday...northeast winds 20 to 30 knots. a chance of showers.
waves building to 4 to 8 feet occasionally to 10 feet. 
.monday night...northeast winds 15 to 25 knots. showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday...northeast winds 15 to 25 knots becoming north 10 to
20 knots by mid afternoon. waves subsiding to 2 to 4 feet. 
.tuesday night...northwest winds 10 to 20 knots. waves subsiding
to calm to 2 feet. 
.wednesday...northwest winds 15 to 25 knots veering north. waves
calm to 2 feet. 
.thursday...southeast winds 15 to 25 knots becoming south gales
to 40 knots. a chance of showers, then showers likely. waves
building to 4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 110806 cca
glfls 
expires:202610112000;;901907

open lake forecast for lake superior...corrected
national weather service marquette mi
406 am edt sun oct 11 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...

lake superior is currently between a 30.5 inch high offshore of new 
england and a 29.6 inch low stretched out from northern mn through 
south dakota. through the daytime hours, the low splits and weakens 
into a pair of 29.7 inch lows, one that remains in the central 
plains and another that moves across northern ontario. this will 
drag a 29.8 inch low across lake superior tonight into monday 
morning as 30.3 inch high pressure expands across the ontario and 
manitoba shores of hudson bay. by monday night, the high will weaken 
to 30.2 inches over quebec as the plains low moves into the upper 
great lakes region at 29.7 inches. as the low escapes to new england 
tuesday into wednesday morning, a new 30.2 inch high forms over the 
dakotas, moving over lake superior at 30.3 inches wednesday night. 
thursday, the high shifts to the eastern great lakes as a 29.8 inch 
alberta clipper moves over lake winnipeg.




lsz266-112000-
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-
406 am edt sun oct 11 2026

.early this morning...south winds to 30 knots with a few gale
force gusts to 35 knots possible. waves 4 to 7 feet occasionally
to 9 feet subsiding to 3 to 6 feet occasionally to 8 feet. 
.today...south winds to 30 knots with a few gale force gusts to
35 knots possible diminishing to 10 to 20 knots. waves subsiding
to 1 to 3 feet. 
.tonight...south winds 10 to 20 knots becoming northeast 20 to
30 knots after midnight. a slight chance of showers after
midnight. waves building to 4 to 7 feet occasionally to 9 feet. 
.monday...northeast winds 20 to 30 knots veering east in the
afternoon. a chance of showers. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.monday night...northeast winds 15 to 25 knots. showers. a slight
chance of thunderstorms after midnight. waves 3 to 6 feet
occasionally to 8 feet. 
.tuesday...northeast winds 15 to 25 knots becoming north 10 to
20 knots by mid afternoon. waves subsiding to 2 to 4 feet. 
.tuesday night...northwest winds 10 to 20 knots. waves subsiding
to calm to 2 feet. 
.wednesday...northwest winds 10 to 20 knots veering north. waves
building to 1 to 3 feet. 
.thursday...southeast winds 15 to 25 knots becoming south gales
to 40 knots. showers likely. waves building to 5 to 8 feet
occasionally to 10 feet. 

$$

fzus63 kmqt 110806 cca
glfls 
expires:202610112000;;901908

open lake forecast for lake superior...corrected
national weather service marquette mi
406 am edt sun oct 11 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...

lake superior is currently between a 30.5 inch high offshore of new 
england and a 29.6 inch low stretched out from northern mn through 
south dakota. through the daytime hours, the low splits and weakens 
into a pair of 29.7 inch lows, one that remains in the central 
plains and another that moves across northern ontario. this will 
drag a 29.8 inch low across lake superior tonight into monday 
morning as 30.3 inch high pressure expands across the ontario and 
manitoba shores of hudson bay. by monday night, the high will weaken 
to 30.2 inches over quebec as the plains low moves into the upper 
great lakes region at 29.7 inches. as the low escapes to new england 
tuesday into wednesday morning, a new 30.2 inch high forms over the 
dakotas, moving over lake superior at 30.3 inches wednesday night. 
thursday, the high shifts to the eastern great lakes as a 29.8 inch 
alberta clipper moves over lake winnipeg.




lsz267-112000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
406 am edt sun oct 11 2026

.early this morning...south winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.today...south winds 20 to 30 knots diminishing to 15 to 25 knots
in the afternoon. waves subsiding to 1 to 3 feet. 
.tonight...south winds 10 to 20 knots becoming southwest 5 to
15 knots after midnight, then becoming northeast 15 to 25 knots
late. waves subsiding to calm to 2 feet, then building to 2 to
4 feet. 
.monday...east winds 15 to 25 knots. a chance of showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.monday night...east winds 15 to 25 knots. a chance of showers
through midnight, then showers after midnight. waves subsiding to
3 to 5 feet occasionally to 7 feet. 
.tuesday...northeast winds 10 to 20 knots backing north by mid
afternoon. a chance of showers through early afternoon. waves
subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 10 to 20 knots. waves subsiding
to calm to 2 feet. 
.wednesday...northwest winds 10 to 20 knots veering north. waves
building to 1 to 3 feet. 
.thursday...southeast winds 10 to 20 knots becoming south 20 to
30 knots. showers likely. waves building to 4 to 7 feet
occasionally to 9 feet. 

$$