fzus61 kbuf 172102
glflo 
expires:202511180400;;582450

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est mon nov 17 2025

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 28.8 low over the canadian maritimes will withdraw 
northward across labrador tonight and tuesday. a 30.3 inch high will 
build from the upper great lakes tuesday to the lower great lakes 
wednesday, then to new england thursday. a 29.6 inch low over 
northern ontario will then make its way to quebec friday, while 
pushing its trailing cold front across the lake. a 30.1 inch high 
is then forecast to build across the lower great lakes saturday.


loz062-180400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est mon nov 17 2025

.tonight...northwest winds 15 to 25 knots. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.tuesday...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 5 to 10 knots becoming north.
waves 2 feet or less. 
.wednesday...northeast winds 5 to 10 knots becoming light and
variable. waves 1 foot or less. 
.wednesday night...light and variable winds. waves 1 foot or
less. 
.thursday...southeast winds 10 knots or less becoming southwest
10 to 15 knots. rain showers likely thursday night. waves 2 feet
or less. 
.friday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. rain showers likely during the day, then a chance of
rain showers friday night. waves 1 to 3 feet building to 2 to
4 feet. 
.saturday...northwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 

$$

fzus61 kbuf 172102
glflo 
expires:202511180400;;582452

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est mon nov 17 2025

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 28.8 low over the canadian maritimes will withdraw 
northward across labrador tonight and tuesday. a 30.3 inch high will 
build from the upper great lakes tuesday to the lower great lakes 
wednesday, then to new england thursday. a 29.6 inch low over 
northern ontario will then make its way to quebec friday, while 
pushing its trailing cold front across the lake. a 30.1 inch high 
is then forecast to build across the lower great lakes saturday.


loz064-065-180400-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 pm est mon nov 17 2025

.tonight...northwest winds 15 to 25 knots. waves 6 to 10 feet
subsiding to 5 to 8 feet. waves occasionally around 13 feet. 
.tuesday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 4 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 9 feet. 
.tuesday night...west winds 5 to 10 knots becoming northwest.
waves 1 to 3 feet subsiding to 1 foot or less. 
.wednesday...northwest winds 10 knots or less. waves 1 foot or
less. 
.wednesday night...light and variable winds. waves 1 foot or
less. 
.thursday...southeast winds 5 to 15 knots becoming south 15 to
20 knots. rain showers likely thursday night. waves 2 feet or
less building to 2 to 4 feet. 
.friday...southwest winds 15 to 20 knots becoming northwest. rain
showers during the day, then a chance of rain showers friday
night. waves 3 to 6 feet. 
.saturday...northwest winds 10 to 15 knots becoming west. a
chance of rain showers during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 

$$

fzus61 kbuf 172102
glflo 
expires:202511180400;;582451

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est mon nov 17 2025

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 28.8 low over the canadian maritimes will withdraw 
northward across labrador tonight and tuesday. a 30.3 inch high will 
build from the upper great lakes tuesday to the lower great lakes 
wednesday, then to new england thursday. a 29.6 inch low over 
northern ontario will then make its way to quebec friday, while 
pushing its trailing cold front across the lake. a 30.1 inch high 
is then forecast to build across the lower great lakes saturday.


loz063-180400-
lake ontario open waters from hamlin beach to sodus bay-
402 pm est mon nov 17 2025

.tonight...northwest winds 15 to 25 knots. a chance of snow
showers through the early overnight. waves 5 to 9 feet subsiding
to 4 to 7 feet. waves occasionally around 11 feet. 
.tuesday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.tuesday night...west winds 5 to 10 knots becoming north. waves
1 to 2 feet. 
.wednesday...north winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.wednesday night...light and variable winds becoming southeast
5 to 10 knots. waves 1 foot or less. 
.thursday...southeast winds 5 to 10 knots becoming south and
increasing to 15 to 20 knots. rain showers likely thursday night.
waves 1 foot or less building to 1 to 3 feet. 
.friday...southwest winds 15 to 20 knots becoming northwest. rain
showers likely during the day, then a chance of rain showers
friday night. waves 2 to 4 feet building to 3 to 6 feet. 
.saturday...northwest winds 10 to 15 knots becoming west. a
chance of rain showers during the day. waves 2 to 4 feet
subsiding to 1 to 2 feet. 

$$

fzus61 kcle 172031
glfle 
expires:202511180330;;580878

open lake forecast for lake erie
national weather service cleveland oh
331 pm est mon nov 17 2025

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 builds over lake erie tonight, followed
by a trough averaging 30.00 inches tuesday. high pressure 30.10
inches builds back in for tuesday night through wednesday night. a
cold front tracks through the region late thursday night through
early friday.



lez162-163-180330-
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-
331 pm est mon nov 17 2025

.tonight...northwest winds 10 knots or less becoming north. a
slight chance of rain and snow late. waves 2 feet or less. 
.tuesday...northeast winds 10 knots or less becoming east. a
chance of rain and snow early, then rain from late morning on.
waves 1 foot or less. 
.tuesday night...east winds around 10 knots becoming northeast. a
chance of rain in the evening. waves 1 foot or less. 
.wednesday...northeast winds 5 to 10 knots. waves 1 foot or less.
.wednesday night...east winds 5 to 10 knots becoming light and
variable. waves 1 foot or less. 
.thursday...south winds 10 knots or less becoming southwest. rain
likely thursday night. waves 2 feet or less. 
.friday...west winds 10 to 15 knots becoming north. a chance of
rain. waves 1 to 2 feet. 
.saturday...north winds 5 to 15 knots becoming southwest. waves
2 feet or less. 

$$

fzus61 kcle 172031
glfle 
expires:202511180330;;580879

open lake forecast for lake erie
national weather service cleveland oh
331 pm est mon nov 17 2025

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 builds over lake erie tonight, followed
by a trough averaging 30.00 inches tuesday. high pressure 30.10
inches builds back in for tuesday night through wednesday night. a
cold front tracks through the region late thursday night through
early friday.



lez164-165-180330-
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-
331 pm est mon nov 17 2025

.tonight...northwest winds 5 to 15 knots diminishing to less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.tuesday...west winds 10 knots or less becoming southeast. a
slight chance of rain early, then a chance of rain late in the
morning. rain in the afternoon. waves 1 foot or less. 
.tuesday night...east winds 5 to 10 knots becoming northeast. a
chance of rain in the evening. waves 1 foot or less. 
.wednesday...northeast winds around 10 knots. waves around
1 foot. 
.wednesday night...east winds 5 to 10 knots becoming light and
variable. waves 1 foot or less. 
.thursday...south winds 10 knots or less becoming southwest 10 to
15 knots. rain likely thursday night. waves 1 to 3 feet. 
.friday...west winds 10 to 15 knots becoming north. rain likely
during the day, then a chance of rain friday night. waves 2 to
4 feet. 
.saturday...north winds 5 to 15 knots becoming southwest. a
chance of rain during the day. waves 1 to 3 feet. 

$$

fzus61 kcle 172031
glfle 
expires:202511180330;;580880

open lake forecast for lake erie
national weather service cleveland oh
331 pm est mon nov 17 2025

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 builds over lake erie tonight, followed
by a trough averaging 30.00 inches tuesday. high pressure 30.10
inches builds back in for tuesday night through wednesday night. a
cold front tracks through the region late thursday night through
early friday.



lez061-166>169-180330-
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-
331 pm est mon nov 17 2025

.tonight...northwest winds 15 to 25 knots diminishing to 10 to
15 knots. a slight chance of rain early. waves 3 to 6 feet
subsiding to 1 to 3 feet. 
.tuesday...west winds 10 knots or less becoming south. a slight
chance of rain late in the morning. a chance of rain in the
afternoon. waves 1 to 3 feet subsiding to 1 foot or less. 
.tuesday night...southeast winds 5 to 10 knots becoming
northeast. a chance of rain in the evening. waves 1 foot or less.
.wednesday...northeast winds 5 to 10 knots. waves 1 foot or less.
.wednesday night...northeast winds 10 knots or less becoming
east. waves 1 foot or less. 
.thursday...southeast winds 10 knots or less becoming southwest
10 to 15 knots. rain likely thursday night. waves 1 to 3 feet. 
.friday...west winds 15 to 20 knots becoming north 10 to
15 knots. rain likely during the day, then a chance of rain
friday night. waves 2 to 4 feet. 
.saturday...north winds 5 to 15 knots becoming southwest. a
chance of rain during the day. waves 1 to 3 feet. 

$$

fzus63 kdtx 172042
glfsc 
expires:202511180445;;581357

lake st clair forecast
national weather service detroit/pontiac mi
342 pm est mon nov 17 2025

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 expand across the
western great lake today and across lower michigan tonight. this
will result in steadily decreasing winds on the lakes today. the
high will become centered over the northern lakes tuesday and
tuesday night as low pressure, 29.90 inches moves across the ohio
valley. high pressure will then expand back across the entire
region wednesday.


lcz460-180445-
lake st clair-
342 pm est mon nov 17 2025

.tonight...northwest winds 5 to 10 knots. mostly clear. waves 2 feet
or less.
.tuesday...light and variable winds becoming east 5 to 10 knots late
in the afternoon. mostly cloudy. a chance of light snow in the
morning. a chance of light rain in the late morning and afternoon.
waves 2 feet or less.
.tuesday night...northeast winds 5 to 10 knots. mostly cloudy until
early morning becoming partly cloudy. waves 2 feet or less.
.wednesday...northeast winds 5 to 10 knots until late afternoon
becoming light and variable. partly sunny. waves 2 feet or less.
.wednesday night...light and variable winds. mostly cloudy early in
the evening becoming partly cloudy. waves nearly calm.
.thursday...light and variable winds becoming south 5 to 10 knots in
the afternoon...then increasing to 10 to 15 knots in the evening.
mostly cloudy. light rain likely in the evening. waves 2 feet or
less.
.friday...north winds 10 to 15 knots. mostly cloudy. light rain
likely. waves 2 feet or less.
.saturday...west winds 10 to 15 knots. partly cloudy. a chance of
light rain. waves 2 feet or less.

$$

fzus63 kdtx 172041
glflh 
expires:202511180445;;581355

open lake forecast for lake huron
national weather service detroit/pontiac mi
341 pm est mon nov 17 2025

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...high pressure, 30.20 inches, will expand across the
western great lake today and across lower michigan tonight. this
will result in steadily decreasing winds on the lakes today. the
high will become centered over the northern lakes tuesday and
tuesday night as low pressure, 29.90 inches moves across the ohio
valley. high pressure will then expand back across the entire
region wednesday.


lhz463-464-180445-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
341 pm est mon nov 17 2025

.tonight...northwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.tuesday...northwest winds 5 to 10 knots in the morning becoming
light and variable. waves 2 to 4 feet subsiding to 1 to 3 feet in
the late morning and afternoon. 
.tuesday night...light and variable winds becoming north 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.wednesday...north winds 5 to 10 knots until late afternoon
becoming light and variable. waves 2 feet or less. 
.wednesday night...light and variable winds becoming south 5 to
10 knots after midnight. waves 2 feet or less. 
.thursday...south winds 5 to 10 knots increasing to 10 to
15 knots. rain likely late in the afternoon. waves 2 feet or less
building to 2 to 4 feet late in the afternoon. 
.friday...west winds 15 to 20 knots becoming northwest 10 to
15 knots until early morning. rain likely early in the morning...
then a chance of rain. waves 3 to 5 feet. 
.saturday...northwest winds 10 to 15 knots becoming west 5 to
10 knots early in the evening...then becoming southwest 10 to
15 knots in the late evening and early morning. a chance of rain
early in the morning. waves 3 to 5 feet subsiding to 1 to 3 feet
until early morning. 


$$

fzus63 kdtx 172041
glflh 
expires:202511180445;;581354

open lake forecast for lake huron
national weather service detroit/pontiac mi
341 pm est mon nov 17 2025

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...high pressure, 30.20 inches, will expand across the
western great lake today and across lower michigan tonight. this
will result in steadily decreasing winds on the lakes today. the
high will become centered over the northern lakes tuesday and
tuesday night as low pressure, 29.90 inches moves across the ohio
valley. high pressure will then expand back across the entire
region wednesday.


lhz363-462-180445-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
341 pm est mon nov 17 2025

.tonight...northwest winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.tuesday...northwest winds 5 to 10 knots in the morning becoming
light and variable. waves 2 to 4 feet subsiding to 1 to 3 feet in
the late morning and afternoon. 
.tuesday night...light and variable winds becoming north 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.wednesday...northwest winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.wednesday night...light and variable winds becoming south 5 to
10 knots after midnight. waves 2 feet or less. 
.thursday...southwest winds 5 to 10 knots increasing to 15 to
20 knots. rain likely late in the afternoon. waves 1 to 3 feet
building to 2 to 4 feet late in the afternoon. 
.friday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and early morning. a chance of rain
early in the morning. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.saturday...northwest winds 10 to 15 knots becoming west 5 to
10 knots early in the evening...then becoming southwest 10 to
15 knots in the late evening and early morning. waves 2 to 4 feet
subsiding to 1 to 3 feet until early morning. 


$$

fzus63 kdtx 172041
glflh 
expires:202511180445;;581353

open lake forecast for lake huron
national weather service detroit/pontiac mi
341 pm est mon nov 17 2025

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...high pressure, 30.20 inches, will expand across the
western great lake today and across lower michigan tonight. this
will result in steadily decreasing winds on the lakes today. the
high will become centered over the northern lakes tuesday and
tuesday night as low pressure, 29.90 inches moves across the ohio
valley. high pressure will then expand back across the entire
region wednesday.


lhz361-362-180445-
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-
341 pm est mon nov 17 2025

.tonight...northwest winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.tuesday...northwest winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon. 
.tuesday night...northwest winds 5 to 10 knots. waves 2 feet or
less. 
.wednesday...light and variable winds. waves 2 feet or less. 
.wednesday night...light and variable winds becoming southwest
5 to 10 knots in the late evening and overnight. waves 2 feet or
less. 
.thursday...southwest winds 5 to 10 knots increasing to 15 to
20 knots. a chance of rain. waves 1 to 3 feet building to 3 to
5 feet late in the afternoon. 
.friday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and early morning. a chance of rain
early in the morning. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.saturday...northwest winds 10 to 15 knots backing to the
southwest until early morning. waves 2 to 4 feet subsiding to
1 to 3 feet. 


$$

fzus63 kmkx 172038
glflm 
expires:202511180415;;581202

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
238 pm cst mon nov 17 2025

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 of 29.8 inches will move from the central plains through
the central mississippi valley region tonight into tomorrow
afternoon. as this happens, light and variable winds overnight,
will come around to southeasterly and easterly through tomorrow
morning. winds will become breezy over the southern half of the
lake as the low moves into the ohio river valley tomorrow evening.
winds then ease wednesday as high pressure of 30.3 inches moves
over the lake.


lmz080-669-671-673-675-777-779-870-872-874-876-878-180415-
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-
238 pm cst mon nov 17 2025

sheboygan wi to pentwater mi south...

.tonight...northeast winds 5 to 10 kt becoming east late this
evening, then becoming southeast after midnight becoming 10 to
20 kt late. rain overnight. waves 1 to 3 ft. 
.tuesday...east winds 10 to 20 kt. rain in the morning, then
slight chance of rain in the afternoon. waves 3 to 5 ft. 
.tuesday night...east winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday...east winds 10 to 15 kt becoming southeast 5 to
10 kt. waves 2 to 4 ft. 
.wednesday night...south winds 5 to 10 kt becoming southwest.
waves 1 to 2 ft. 
.thursday...southwest winds 10 to 20 kt. chance of rain in the
afternoon. waves 2 to 4 ft. 
.thursday night...west winds 10 to 20 kt becoming northwest.
chance of rain. waves 2 to 4 ft building to 3 to 5 ft. 
.friday...northwest winds 10 to 20 kt becoming north. chance of
rain. waves 4 to 6 ft occasionally to 8 ft. 
.saturday...northeast winds 10 to 15 kt veering to southwest
10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 172038
glflm 
expires:202511180415;;581201

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
238 pm cst mon nov 17 2025

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 of 29.8 inches will move from the central plains through
the central mississippi valley region tonight into tomorrow
afternoon. as this happens, light and variable winds overnight,
will come around to southeasterly and easterly through tomorrow
morning. winds will become breezy over the southern half of the
lake as the low moves into the ohio river valley tomorrow evening.
winds then ease wednesday as high pressure of 30.3 inches moves
over the lake.


lmz261-362-364-366-563-565-567-868-180415-
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-
238 pm cst mon nov 17 2025

sheboygan wi to pentwater mi north...

.tonight...north winds 10 to 20 kt becoming northeast 10 to
15 kt. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.tuesday...northeast winds 10 to 15 kt. chance of rain. waves
1 to 2 ft. 
.tuesday night...northeast winds 5 to 10 kt becoming north. waves
1 to 2 ft. 
.wednesday...south winds 5 to 10 kt becoming southwest. waves
1 ft or less. 
.wednesday night...south winds 10 to 15 kt becoming southwest.
waves 1 to 2 ft. 
.thursday...southwest winds 10 to 20 kt. chance of rain in the
morning, then rain likely in the afternoon. waves 2 to 4 ft. 
.thursday night...west winds 15 to 25 kt becoming northwest 10 to
20 kt. chance of rain. waves 2 to 4 ft. 
.friday...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.saturday...west winds 10 to 20 kt becoming southwest. waves 1 to
3 ft.  

$$

fzus63 kmqt 172107 cca
glfls 
expires:202511180900;;583016

open lake forecast for lake superior...corrected
national weather service marquette mi
407 pm est mon nov 17 2025

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...
high pressure averaging 30.1 inches will build over lake superior 
through tuesday while a 28.8 inch low moves north through the 
canadian maritimes. 30.2 inch ridging will continue to encompass the 
great lakes basin wednesday, shifting into new england by thursday 
as a 29.7 inch low develops over northern ontario. high pressure
ridging of around 30.1 inches develops over the northern plains and
upper midwest on friday before moving into the great lakes region by
saturday.



lsz266-180900-
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-
407 pm est mon nov 17 2025

.late this afternoon...northwest winds 15 to 25 knots. a slight
chance of snow showers. waves 3 to 6 feet occasionally to 8 feet.
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots by midnight, then veering north late. waves subsiding to
calm to 2 feet. 
.tuesday...north winds 5 to 15 knots backing northwest. waves
calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots backing west by
midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 10 to 20 knots. a chance of
rain showers. waves building to 1 to 3 feet. 
.thursday...southwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. rain showers. waves building to 3 to
5 feet occasionally to 7 feet. 
.thursday night...northwest winds 20 to 30 knots. a chance of
rain showers. waves building to 5 to 8 feet occasionally to
10 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers, possibly mixed with rain.
waves subsiding to 1 to 3 feet. 
.saturday...southwest winds 10 to 20 knots veering west. waves
1 to 3 feet. 

$$

fzus63 kmqt 172107 cca
glfls 
expires:202511180900;;583017

open lake forecast for lake superior...corrected
national weather service marquette mi
407 pm est mon nov 17 2025

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...
high pressure averaging 30.1 inches will build over lake superior 
through tuesday while a 28.8 inch low moves north through the 
canadian maritimes. 30.2 inch ridging will continue to encompass the 
great lakes basin wednesday, shifting into new england by thursday 
as a 29.7 inch low develops over northern ontario. high pressure
ridging of around 30.1 inches develops over the northern plains and
upper midwest on friday before moving into the great lakes region by
saturday.



lsz267-180900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
407 pm est mon nov 17 2025

.late this afternoon...northwest winds 15 to 25 knots. a slight
chance of snow showers. waves 3 to 6 feet occasionally to 8 feet.
.tonight...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by midnight, then veering north late. a slight chance of
snow showers. waves subsiding to calm to 2 feet. 
.tuesday...north winds 5 to 15 knots backing northwest. waves
calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots backing west late.
waves calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.wednesday night...southwest winds 10 to 20 knots. a chance of
rain showers after midnight. waves building to 1 to 3 feet. 
.thursday...southwest winds 15 to 25 knots. rain showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.thursday night...west winds 20 to 30 knots veering northwest
after midnight. rain showers in the evening, then a chance of
rain showers after midnight. waves building to 5 to 8 feet
occasionally to 10 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. a chance of rain and snow showers. waves subsiding to
1 to 3 feet. 
.saturday...southwest winds 10 to 20 knots veering west. a chance
of rain showers. waves 1 to 3 feet. 

$$

fzus63 kmqt 172107 cca
glfls 
expires:202511180900;;583012

open lake forecast for lake superior...corrected
national weather service marquette mi
407 pm est mon nov 17 2025

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...
high pressure averaging 30.1 inches will build over lake superior 
through tuesday while a 28.8 inch low moves north through the 
canadian maritimes. 30.2 inch ridging will continue to encompass the 
great lakes basin wednesday, shifting into new england by thursday 
as a 29.7 inch low develops over northern ontario. high pressure
ridging of around 30.1 inches develops over the northern plains and
upper midwest on friday before moving into the great lakes region by
saturday.



lsz162-180900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
407 pm est mon nov 17 2025 /307 pm cst mon nov 17 2025/

.late this afternoon...west winds less than 10 knots. waves calm
to 2 feet. 
.tonight...north winds less than 10 knots becoming northeast 5 to
15 knots by midnight. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots diminishing to less than
10 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...south winds less than 10 knots becoming
southwest 5 to 15 knots by midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 10 to 20 knots. a chance of
rain showers in the evening, then rain showers likely after
midnight. waves calm to 2 feet. 
.thursday...southwest winds 10 to 20 knots becoming west 15 to
25 knots in the afternoon. rain showers likely in the morning,
then a chance of rain showers in the afternoon. waves building to
1 to 3 feet. 
.thursday night...west winds 15 to 25 knots. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.friday...northwest winds 10 to 20 knots becoming west 5 to
15 knots. waves calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots veering west. waves
calm to 2 feet. 

$$

fzus63 kmqt 172107 cca
glfls 
expires:202511180900;;583013

open lake forecast for lake superior...corrected
national weather service marquette mi
407 pm est mon nov 17 2025

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...
high pressure averaging 30.1 inches will build over lake superior 
through tuesday while a 28.8 inch low moves north through the 
canadian maritimes. 30.2 inch ridging will continue to encompass the 
great lakes basin wednesday, shifting into new england by thursday 
as a 29.7 inch low develops over northern ontario. high pressure
ridging of around 30.1 inches develops over the northern plains and
upper midwest on friday before moving into the great lakes region by
saturday.



lsz263-180900-
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-
407 pm est mon nov 17 2025

.late this afternoon...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...north winds 5 to 15 knots becoming northeast less than
10 knots late. waves calm to 2 feet. 
.tuesday...north winds less than 10 knots backing northwest by
mid afternoon. waves calm to 2 feet. 
.tuesday night...west winds less than 10 knots becoming southwest
5 to 15 knots by midnight. waves calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. waves building to
1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots. a chance of
rain showers. waves building to 2 to 4 feet. 
.thursday...southwest winds 15 to 25 knots veering west in the
afternoon. rain showers likely in the morning, then a chance of
rain showers in the afternoon. waves 2 to 4 feet. 
.thursday night...west winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet. 
.friday...northwest winds 15 to 25 knots becoming west 5 to
15 knots. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots veering west. waves
building to 1 to 3 feet. 

$$

fzus63 kmqt 172107 cca
glfls 
expires:202511180900;;583014

open lake forecast for lake superior...corrected
national weather service marquette mi
407 pm est mon nov 17 2025

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...
high pressure averaging 30.1 inches will build over lake superior 
through tuesday while a 28.8 inch low moves north through the 
canadian maritimes. 30.2 inch ridging will continue to encompass the 
great lakes basin wednesday, shifting into new england by thursday 
as a 29.7 inch low develops over northern ontario. high pressure
ridging of around 30.1 inches develops over the northern plains and
upper midwest on friday before moving into the great lakes region by
saturday.



lsz264-180900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
407 pm est mon nov 17 2025

.late this afternoon...northwest winds 5 to 15 knots. waves 1 to
3 feet. 
.tonight...north winds 5 to 15 knots diminishing to less than
10 knots late. waves subsiding to calm to 2 feet. 
.tuesday...north winds less than 10 knots backing northwest.
waves calm to 2 feet. 
.tuesday night...northwest winds less than 10 knots backing west
by midnight, then increasing to 5 to 15 knots late. waves calm to
2 feet. 
.wednesday...southwest winds 10 to 20 knots. waves building to
1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots. a chance of
rain showers. waves building to 2 to 4 feet. 
.thursday...southwest winds 15 to 25 knots veering west in the
afternoon. rain showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.thursday night...northwest winds 15 to 25 knots. waves building
to 4 to 7 feet occasionally to 9 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots veering west. waves
building to 1 to 3 feet. 

$$

fzus63 kmqt 172107 cca
glfls 
expires:202511180900;;583015

open lake forecast for lake superior...corrected
national weather service marquette mi
407 pm est mon nov 17 2025

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...
high pressure averaging 30.1 inches will build over lake superior 
through tuesday while a 28.8 inch low moves north through the 
canadian maritimes. 30.2 inch ridging will continue to encompass the 
great lakes basin wednesday, shifting into new england by thursday 
as a 29.7 inch low develops over northern ontario. high pressure
ridging of around 30.1 inches develops over the northern plains and
upper midwest on friday before moving into the great lakes region by
saturday.



lsz265-180900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
407 pm est mon nov 17 2025

.late this afternoon...northwest winds 10 to 20 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots by midnight, then veering north late. waves subsiding to
calm to 2 feet. 
.tuesday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots backing west by
midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 10 to 20 knots. a chance of
rain showers. waves calm to 2 feet. 
.thursday...southwest winds 10 to 20 knots becoming west 20 to
30 knots in the afternoon. rain showers. waves building to 1 to
3 feet. 
.thursday night...west winds 20 to 30 knots. a chance of rain
showers. waves building to 3 to 5 feet occasionally to 7 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.saturday...west winds 10 to 20 knots. waves calm to 2 feet. 

$$