fzus61 kbuf 231502
glflo 
expires:202511232200;;368256

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun nov 23 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 29.5 inch low will move from northern ontario to james 
bay, sending its cold front across the lake this afternoon. a 30.2 
inch high is then forecast to build across the ohio valley monday. 
on tuesday a 29.5 inch low to the north of lake superior will swing 
a cold front across the lake by tuesday night. the surface low will 
then track well north of the lake wednesday and thursday.


loz062-232200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est sun nov 23 2025

.rest of today...west winds 15 to 25 knots. a chance of showers.
waves 3 to 6 feet building to 6 to 9 feet. waves occasionally
around 11 feet. 
.tonight...west winds 15 to 25 knots becoming northwest. a chance
of showers early. waves 5 to 8 feet subsiding to 3 to 6 feet.
waves occasionally around 10 feet. 
.monday...west winds 5 to 15 knots becoming southwest. waves 1 to
3 feet. 
.monday night...south winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...south winds 5 to 10 knots. showers likely. waves
1 foot or less. 
.wednesday...southwest winds 15 to 20 knots becoming west and
increasing to 35 knot gales. rain showers likely during the day,
then rain showers likely with a chance of snow showers wednesday
night. waves 2 to 4 feet building to 9 to 13 feet. waves
occasionally around 16 feet. 
.thursday...west gales to 35 knots. a chance of snow showers.
waves 10 to 14 feet subsiding to 8 to 11 feet. waves occasionally
around 18 feet. 

$$

fzus61 kbuf 231502
glflo 
expires:202511232200;;368258

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun nov 23 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 29.5 inch low will move from northern ontario to james 
bay, sending its cold front across the lake this afternoon. a 30.2 
inch high is then forecast to build across the ohio valley monday. 
on tuesday a 29.5 inch low to the north of lake superior will swing 
a cold front across the lake by tuesday night. the surface low will 
then track well north of the lake wednesday and thursday.


loz064-065-232200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am est sun nov 23 2025

.rest of today...south winds 15 to 25 knots becoming west. rain
showers likely late this morning, then rain early this afternoon.
rain showers likely late. waves 3 to 6 feet building to 6 to
9 feet. waves occasionally around 11 feet. 
.tonight...west winds 15 to 25 knots becoming northwest. a chance
of rain showers in the evening. waves 6 to 10 feet subsiding to
4 to 7 feet. waves occasionally around 13 feet. 
.monday...northwest winds 15 to 20 knots becoming southwest and
diminishing to 5 to 10 knots. waves 3 to 5 feet subsiding to 1 to
2 feet. 
.monday night...south winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday...south winds 10 to 15 knots. showers. waves 1 to
3 feet. 
.wednesday...south winds 15 to 20 knots becoming west and
increasing to 35 knot gales. rain showers during the day, then
rain showers with snow showers likely wednesday night. waves 1 to
3 feet building to 10 to 15 feet. waves occasionally around
19 feet. 
.thursday...west gales to 35 knots diminishing to 30 knots. rain
and snow showers likely during the day, then snow showers likely
thursday night. waves 11 to 16 feet. waves occasionally around
20 feet. 

$$

fzus61 kbuf 231502
glflo 
expires:202511232200;;368257

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun nov 23 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 29.5 inch low will move from northern ontario to james 
bay, sending its cold front across the lake this afternoon. a 30.2 
inch high is then forecast to build across the ohio valley monday. 
on tuesday a 29.5 inch low to the north of lake superior will swing 
a cold front across the lake by tuesday night. the surface low will 
then track well north of the lake wednesday and thursday.


loz063-232200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est sun nov 23 2025

.rest of today...southwest winds 15 to 25 knots becoming west to
30 knots. a chance of showers late this morning, then showers
likely this afternoon. waves 3 to 5 feet building to 7 to
10 feet. waves occasionally around 13 feet. 
.tonight...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. a chance of showers early. waves
6 to 10 feet subsiding to 4 to 7 feet. waves occasionally around
13 feet. 
.monday...northwest winds 15 to 20 knots becoming southwest and
diminishing to 5 to 10 knots. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.monday night...south winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...south winds 10 to 15 knots. showers likely. waves
2 feet or less. 
.wednesday...south winds 10 to 15 knots becoming west and
increasing to 35 knot gales. rain showers likely during the day,
then rain and snow showers likely wednesday night. waves 1 to
3 feet building to 10 to 15 feet. waves occasionally around
19 feet. 
.thursday...west gales to 35 knots diminishing to 30 knots. snow
and rain showers likely during the day, then snow showers likely
thursday night. waves 11 to 16 feet subsiding to 10 to 14 feet.
waves occasionally around 20 feet. 

$$

fzus61 kcle 231949
glfle 
expires:202511240315;;379605

open lake forecast for lake erie
national weather service cleveland oh
249 pm est sun nov 23 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 30.30 inches will build over lake erie tonight and 
monday. another area of low pressure 29.70 inches will lift into 
the upper midwest tuesday. this low will lift a warm front north 
through the region on tuesday, followed by a cold front on 
wednesday as the low deepens to 29.20 inches over the northern 
great lakes. a surface trough averaging 29.90 inches will then 
linger across the area through friday.


lez165>167-240315-
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-
249 pm est sun nov 23 2025

.tonight...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.monday...southwest winds 10 knots or less becoming south 10 to
15 knots. waves 2 feet or less. 
.monday night...south winds 10 to 15 knots. a chance of rain
overnight. waves 1 to 2 feet. 
.tuesday...south winds 10 to 15 knots. rain. waves 1 to 3 feet. 
.tuesday night...southwest winds 5 to 15 knots increasing to
15 to 20 knots. a chance of rain in the evening, then rain likely
overnight. waves 1 to 3 feet. 
.wednesday...southwest winds to 30 knots becoming west and
increasing to 35 knot gales. rain likely during the day, then
snow and rain likely wednesday night. waves 5 to 8 feet building
to 9 to 13 feet. waves occasionally around 16 feet. 
.thursday...west gales to 35 knots diminishing to 30 knots. a
chance of snow. waves 8 to 12 feet. waves occasionally around
15 feet. 
.friday...west winds to 30 knots diminishing to 15 to 20 knots. a
chance of snow during the day. waves 5 to 9 feet subsiding to
3 to 6 feet. waves occasionally around 11 feet. 

$$

fzus61 kcle 231949
glfle 
expires:202511240315;;379606

open lake forecast for lake erie
national weather service cleveland oh
249 pm est sun nov 23 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 30.30 inches will build over lake erie tonight and 
monday. another area of low pressure 29.70 inches will lift into 
the upper midwest tuesday. this low will lift a warm front north 
through the region on tuesday, followed by a cold front on 
wednesday as the low deepens to 29.20 inches over the northern 
great lakes. a surface trough averaging 29.90 inches will then 
linger across the area through friday.


lez061-168-169-240315-
ripley to buffalo ny extending from 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-
249 pm est sun nov 23 2025

.tonight...west winds 15 to 25 knots becoming northwest and
diminishing to 5 to 10 knots. waves 4 to 7 feet subsiding to 1 to
3 feet. waves occasionally around 9 feet. 
.monday...south winds 10 knots or less. waves 1 to 2 feet. 
.monday night...south winds 10 to 15 knots. waves 1 to 2 feet. 
.tuesday...south winds 10 to 15 knots. rain. waves 1 to 2 feet. 
.tuesday night...south winds 10 to 15 knots becoming southwest.
rain likely. waves 1 to 2 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west and
increasing to 35 knot gales. rain during the day, then rain and
snow likely wednesday night. waves 4 to 7 feet building to 10 to
14 feet. waves occasionally around 18 feet. 
.thursday...west gales to 35 knots. snow likely. waves 10 to
14 feet. waves occasionally around 18 feet. 
.friday...west winds to 30 knots diminishing to 15 to 20 knots. a
chance of snow. waves 8 to 11 feet subsiding to 4 to 6 feet.
waves occasionally around 14 feet. 

$$

fzus61 kcle 231949
glfle 
expires:202511240315;;379604

open lake forecast for lake erie
national weather service cleveland oh
249 pm est sun nov 23 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 30.30 inches will build over lake erie tonight and 
monday. another area of low pressure 29.70 inches will lift into 
the upper midwest tuesday. this low will lift a warm front north 
through the region on tuesday, followed by a cold front on 
wednesday as the low deepens to 29.20 inches over the northern 
great lakes. a surface trough averaging 29.90 inches will then 
linger across the area through friday.


lez162>164-240315-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
249 pm est sun nov 23 2025

.tonight...west winds 5 to 15 knots diminishing to less than
10 knots. waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots becoming south. waves
1 foot or less. 
.monday night...south winds around 10 knots. rain likely
overnight. waves 1 foot or less. 
.tuesday...southeast winds 5 to 10 knots becoming south. rain.
waves 2 feet or less. 
.tuesday night...southwest winds 5 to 10 knots increasing to
15 to 20 knots. a chance of rain overnight. waves 1 foot or less
building to 1 to 3 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west to
30 knots. a chance of rain during the day, then a chance of snow
wednesday night. waves 3 to 5 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.thursday...west winds to 30 knots. a chance of snow thursday
night. waves 5 to 8 feet. waves occasionally around 10 feet. 
.friday...west winds 15 to 25 knots. waves 3 to 6 feet subsiding
to 1 to 3 feet. 

$$

fzus63 kdtx 231445
glfsc 
expires:202511232245;;367580

lake st clair forecast
national weather service detroit/pontiac mi
945 am est sun nov 23 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...as a cold front exits the central great lakes,
northwest wind gusts increase to 35 knot gales across the north
half of lake huron this morning. these winds quickly diminish by
this evening as a ridge of high pressure, 30.20 inches, moves
into the region.


lcz460-232245-
lake st clair-
945 am est sun nov 23 2025

.rest of today...west winds 15 to 20 knots. mostly sunny. waves 1 to
3 feet.
.tonight...west winds 10 to 15 knots diminishing to 5 to 10 knots in
the late evening and overnight. mostly clear. waves 2 feet or less.
.monday...southwest winds 5 to 10 knots becoming south 10 to 15
knots in the late morning and afternoon. partly sunny. waves 2 feet
or less.
.monday night...south winds 10 to 15 knots diminishing to 5 to 10
knots after midnight. cloudy. a chance of light rain after midnight.
waves 2 feet or less.
.tuesday...south winds 5 to 10 knots veering to the southwest in the
evening. mostly cloudy. light rain likely. waves 2 feet or less.
.wednesday...west at 35 knot gales. mostly cloudy with a chance of
light rain. waves 3 to 5 feet. waves occasionally around 7 feet.  a
gale warning may be needed.
.thursday...west at 35 knot gales. partly cloudy. waves 3 to 5 feet.
waves occasionally around 7 feet.

$$

fzus63 kdtx 231445
glflh 
expires:202511232245;;367578

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am est sun nov 23 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...as a cold front exits the central great lakes,
northwest wind gusts increase to 35 knot gales across the north
half of lake huron this morning. these winds quickly diminish by
this evening as a ridge of high pressure, 30.20 inches, moves
into the region.


lhz363-462>464-232245-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
945 am est sun nov 23 2025

.rest of today...west winds 20 to 25 knots with gusts to around
30 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.tonight...northwest winds 15 to 20 knots becoming west 5 to
10 knots. waves 6 to 9 feet subsiding to 3 to 5 feet after
midnight. waves occasionally around 12 feet. 
.monday...southwest winds 10 to 15 knots becoming south 15 to
20 knots in the late morning and afternoon. waves 2 to 4 feet
building to 4 to 6 feet in the late morning and afternoon. waves
occasionally around 8 feet. 
.monday night...south winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. a chance of rain
after midnight. waves 3 to 5 feet. 
.tuesday...south winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then increasing to 10 to 15 knots late in
the evening. rain likely...then a chance of rain late in the
afternoon. waves 1 to 3 feet building to 2 to 4 feet late in the
evening. 
.wednesday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest to 30 knots with gusts to 40 knot
gales in the late morning and early afternoon...then becoming
west at 40 knot gales until early morning. a chance of rain. a
chance of snow until early evening...then snow likely in the late
evening and early morning. waves 6 to 9 feet building to 14 to
18 feet. waves occasionally around 23 feet. a gale warning may be
needed. 
.thursday...west at 35 knot gales with gusts to 40 knot gales.
snow likely. waves 12 to 16 feet. waves occasionally around
19 feet. 


$$

fzus63 kdtx 231445
glflh 
expires:202511232245;;367577

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am est sun nov 23 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...as a cold front exits the central great lakes,
northwest wind gusts increase to 35 knot gales across the north
half of lake huron this morning. these winds quickly diminish by
this evening as a ridge of high pressure, 30.20 inches, moves
into the region.


lhz361-362-232245-
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-
945 am est sun nov 23 2025

...gale warning in effect until 4 pm est this afternoon...

.rest of today...northwest winds 20 to 25 knots with gusts to
35 knot gales. waves 8 to 12 feet. waves occasionally around
15 feet. 
.tonight...northwest winds 15 to 20 knots becoming west 10 to
15 knots late in the evening...then becoming southwest 5 to
10 knots after midnight. waves 6 to 9 feet subsiding to 2 to
4 feet. waves occasionally around 12 feet. 
.monday...southwest winds 10 to 15 knots becoming south 15 to
20 knots in the late morning and early afternoon...then
decreasing to 10 to 15 knots early in the afternoon. waves 2 to
4 feet building to 4 to 6 feet in the late morning and afternoon.
waves occasionally around 8 feet. 
.monday night...south winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. a chance of rain.
waves 3 to 5 feet. 
.tuesday...south winds 5 to 10 knots increasing to 10 to 15 knots
late in the evening. rain likely...then a chance of rain late in
the afternoon. rain likely late in the evening. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.wednesday...south winds 15 to 20 knots becoming southwest to
30 knots with gusts to 40 knot gales in the late morning and
early afternoon...then becoming west at 35 knot gales with gusts
to 40 knot gales until early morning. rain likely early in the
morning. snow. waves 6 to 9 feet building to 12 to 16 feet. waves
occasionally around 20 feet. a gale warning may be needed. 
.thursday...west at 35 knot gales decreasing to 30 knots in the
late morning and early afternoon...then becoming northwest at
35 knot gales early in the evening decreasing to 30 knots in the
late evening and early morning. snow likely...then a chance of
snow in the late evening and early morning. waves 12 to 16 feet.
waves occasionally around 20 feet. 


$$

fzus63 kmkx 232004
glflm 
expires:202511240415;;380390

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
204 pm cst sun nov 23 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...

winds will turn southwesterly tonight, as high pressure moves into
the mid atlantic region. winds will turns southerly and increase 
on monday as low pressure around 29.8 inches develops in the 
middle mississippi valley. southerly winds will continue into 
tuesday as low pressure deepens to 29.6 inches over minnesota. 
tuesday night, a cold front from this low will surge eastward 
across the lake as the low continues to deepen, bringing westerly 
gales by wednesday morning. westerly gales will become 
northwesterly wednesday night, continuing into thursday morning 
before diminishing as low pressure finally lifts northward into 
northern quebec.


lmz080-669-671-673-675-777-779-870-872-874-876-878-240415-
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-
204 pm cst sun nov 23 2025

sheboygan wi to pentwater mi south...

.tonight...southwest winds 5 to 10 kt becoming south 10 to 20 kt.
waves 1 to 3 ft. 
.monday...south winds 15 to 25 kt diminishing to 10 to 20 kt.
areas of drizzle in the afternoon. waves 2 to 4 ft building to
4 to 6 ft occasionally to 8 ft. 
.monday night...south winds 10 to 20 kt diminishing to 10 to
15 kt. widespread drizzle and rain likely in the evening, then
rain likely overnight. waves 4 to 6 ft occasionally to 8 ft
subsiding to 2 to 4 ft. 
.tuesday...south winds 5 to 10 kt becoming southwest. chance of
rain. waves 1 to 3 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming west gales
to 35 kt overnight. rain in the evening, then chance of rain
overnight. waves 3 to 5 ft building to 8 to 12 ft occasionally to
16 ft. 
.wednesday...west gales to 45 kt. chance of rain in the morning,
then chance of snow in the afternoon. waves 14 to 18 ft
occasionally to 23 ft building to 15 to 20 ft occasionally to
26 ft. 
.wednesday night...west gales to 45 kt. chance of snow. waves
15 to 20 ft occasionally to 26 ft. 
.thursday...northwest gales to 40 kt. chance of snow. waves 15 to
20 ft occasionally to 26 ft. 
.friday...northwest winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft.  

$$

fzus63 kmkx 232004
glflm 
expires:202511240415;;380389

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
204 pm cst sun nov 23 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...

winds will turn southwesterly tonight, as high pressure moves into
the mid atlantic region. winds will turns southerly and increase 
on monday as low pressure around 29.8 inches develops in the 
middle mississippi valley. southerly winds will continue into 
tuesday as low pressure deepens to 29.6 inches over minnesota. 
tuesday night, a cold front from this low will surge eastward 
across the lake as the low continues to deepen, bringing westerly 
gales by wednesday morning. westerly gales will become 
northwesterly wednesday night, continuing into thursday morning 
before diminishing as low pressure finally lifts northward into 
northern quebec.


lmz261-362-364-366-563-565-567-868-240415-
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-
204 pm cst sun nov 23 2025

sheboygan wi to pentwater mi north...

.tonight...west winds 10 to 15 kt becoming southwest late this
evening, then increasing to 10 to 20 kt after midnight increasing
to 15 to 25 kt late. waves 1 to 3 ft building to 2 to 4 ft. 
.monday...southwest winds to 30 kt. patchy drizzle in the
afternoon. waves 4 to 6 ft occasionally to 8 ft building to 5 to
8 ft occasionally to 10 ft. 
.monday night...southwest winds 10 to 20 kt becoming south 5 to
10 kt. rain likely. waves 4 to 6 ft occasionally to 8 ft
subsiding to 2 to 4 ft. 
.tuesday...south winds 10 to 15 kt. rain likely. waves 1 to 3 ft.
.tuesday night...south winds 10 to 20 kt becoming southwest to
30 kt overnight. rain. waves 2 to 4 ft building to 7 to 10 ft
occasionally to 13 ft. 
.wednesday...west gales to 40 kt increasing to storm force winds
to 50 kt in the afternoon. rain with snow likely in the morning,
then snow in the afternoon. waves 12 to 16 ft occasionally to
21 ft. 
.wednesday night...west storm force winds to 55 kt becoming
northwest. snow. waves 14 to 18 ft occasionally to 23 ft. 
.thursday...northwest gales to 45 kt diminishing to gales to
40 kt. chance of snow. waves 12 to 16 ft occasionally to 21 ft. 
.friday...northwest winds to 30 kt diminishing to 15 to 25 kt.
chance of snow. waves 5 to 8 ft occasionally to 10 ft subsiding
to 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmqt 231500
glfls 
expires:202511232100;;368119

open lake forecast for lake superior
national weather service marquette mi
1000 am est sun nov 23 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...

a 29.8 inch trough currently resides on the quebec/ontario lines 
south of james bay, dissipating as it tracks east today. meanwhile, 
a 30.2 inch high passing south of the great lakes today will result 
in a 30.0 inch ridge passing over the lake today. in its wake, a 
29.8 inch truogh will pass just north of lake superior tonight 
through monday. monday night into tuesday, a 29.8 inch low will 
organize just west of the great lakes, deepening to 29.6 inches 
tuesday night over the michigan upper peninsula and passing over 
eastern lake superior at 29.4 inches wednesday. this low deepens 
further to 29.3 inches over quebec thursday while 30.5 inch high 
pressure builds over the northern great plains. this high moves over 
lake superior friday into the weekend.



lsz267-232100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am est sun nov 23 2025

...gale warning in effect until noon est today...

.rest of today...northwest gales to 40 knots diminishing to 15 to
25 knots by mid afternoon. a slight chance of rain showers late
in the morning. waves 10 to 14 feet occasionally to 18 feet
subsiding to 4 to 7 feet occasionally to 9 feet. 
.tonight...west winds 10 to 20 knots backing south by midnight,
then increasing to 15 to 25 knots late. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.monday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 1 to 3 feet. 
.monday night...southwest winds 5 to 15 knots backing southeast
after midnight. a chance of rain in the evening, then rain likely
after midnight. waves subsiding to calm to 2 feet. 
.tuesday...east winds 10 to 20 knots. rain. waves calm to 2 feet.
.tuesday night...east winds 15 to 25 knots becoming southeast
20 to 30 knots after midnight. rain. waves building to 3 to
6 feet occasionally to 8 feet. 
.wednesday...northwest gales to 35 knots. rain. snow showers.
waves building to 10 to 14 feet occasionally to 18 feet. 
.thursday...northwest gales to 35 knots diminishing to 20 to
30 knots. snow showers. waves subsiding to 9 to 12 feet
occasionally to 15 feet, then building to 10 to 14 feet
occasionally to 18 feet. 

$$

fzus63 kmqt 231500
glfls 
expires:202511232100;;368117

open lake forecast for lake superior
national weather service marquette mi
1000 am est sun nov 23 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...

a 29.8 inch trough currently resides on the quebec/ontario lines 
south of james bay, dissipating as it tracks east today. meanwhile, 
a 30.2 inch high passing south of the great lakes today will result 
in a 30.0 inch ridge passing over the lake today. in its wake, a 
29.8 inch truogh will pass just north of lake superior tonight 
through monday. monday night into tuesday, a 29.8 inch low will 
organize just west of the great lakes, deepening to 29.6 inches 
tuesday night over the michigan upper peninsula and passing over 
eastern lake superior at 29.4 inches wednesday. this low deepens 
further to 29.3 inches over quebec thursday while 30.5 inch high 
pressure builds over the northern great plains. this high moves over 
lake superior friday into the weekend.



lsz265-232100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am est sun nov 23 2025

.rest of today...northwest winds 20 to 30 knots diminishing to
15 to 25 knots by late morning, then becoming west 10 to 20 knots
by mid afternoon. waves 4 to 7 feet occasionally to 9 feet
subsiding to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots becoming south 10 to
20 knots by midnight, then veering southwest late. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots veering west by late
morning, then becoming northwest 5 to 15 knots by mid afternoon.
waves subsiding to calm to 2 feet. 
.monday night...north winds 5 to 15 knots veering northeast after
midnight. a chance of rain. waves calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon. a chance of rain in the morning, then
rain likely in the afternoon. waves building to 1 to 3 feet. 
.tuesday night...east winds 15 to 25 knots becoming northeast
gales to 35 knots after midnight. rain. snow after midnight.
waves building to 5 to 8 feet occasionally to 10 feet. 
.wednesday...northwest gales to 40 knots. rain. snow showers.
waves building to 10 to 14 feet occasionally to 18 feet, then
subsiding to 8 to 11 feet occasionally to 14 feet. 
.thursday...northwest gales to 40 knots diminishing to 20 to
30 knots. snow showers likely, then a chance of snow showers.
waves subsiding to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 231500
glfls 
expires:202511232100;;368116

open lake forecast for lake superior
national weather service marquette mi
1000 am est sun nov 23 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...

a 29.8 inch trough currently resides on the quebec/ontario lines 
south of james bay, dissipating as it tracks east today. meanwhile, 
a 30.2 inch high passing south of the great lakes today will result 
in a 30.0 inch ridge passing over the lake today. in its wake, a 
29.8 inch truogh will pass just north of lake superior tonight 
through monday. monday night into tuesday, a 29.8 inch low will 
organize just west of the great lakes, deepening to 29.6 inches 
tuesday night over the michigan upper peninsula and passing over 
eastern lake superior at 29.4 inches wednesday. this low deepens 
further to 29.3 inches over quebec thursday while 30.5 inch high 
pressure builds over the northern great plains. this high moves over 
lake superior friday into the weekend.



lsz264-232100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am est sun nov 23 2025

.rest of today...northwest winds 15 to 25 knots becoming west
5 to 15 knots by mid afternoon. waves 4 to 7 feet occasionally to
9 feet subsiding to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots backing south by
midnight, then veering southwest late. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 
.monday...southwest winds 10 to 20 knots veering west by late
morning, then becoming northwest 5 to 15 knots by mid afternoon.
waves subsiding to 1 to 3 feet. 
.monday night...north winds 5 to 15 knots veering northeast after
midnight. a slight chance of rain after midnight. waves subsiding
to calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a chance of rain. waves building to
2 to 4 feet. 
.tuesday night...northeast winds 20 to 30 knots increasing to
gales to 40 knots after midnight. rain and snow. waves building
to 8 to 11 feet occasionally to 14 feet. 
.wednesday...north gales to 40 knots backing northwest. snow,
then a chance of snow showers. waves building to 10 to 14 feet
occasionally to 18 feet, then subsiding to 8 to 11 feet
occasionally to 14 feet. 
.thursday...northwest gales to 35 knots diminishing to 20 to
30 knots. a chance of snow showers. waves subsiding to 3 to
6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 231500
glfls 
expires:202511232100;;368115

open lake forecast for lake superior
national weather service marquette mi
1000 am est sun nov 23 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...

a 29.8 inch trough currently resides on the quebec/ontario lines 
south of james bay, dissipating as it tracks east today. meanwhile, 
a 30.2 inch high passing south of the great lakes today will result 
in a 30.0 inch ridge passing over the lake today. in its wake, a 
29.8 inch truogh will pass just north of lake superior tonight 
through monday. monday night into tuesday, a 29.8 inch low will 
organize just west of the great lakes, deepening to 29.6 inches 
tuesday night over the michigan upper peninsula and passing over 
eastern lake superior at 29.4 inches wednesday. this low deepens 
further to 29.3 inches over quebec thursday while 30.5 inch high 
pressure builds over the northern great plains. this high moves over 
lake superior friday into the weekend.



lsz263-232100-
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-
1000 am est sun nov 23 2025

.rest of today...northwest winds 10 to 20 knots backing west by
late morning, then becoming southwest 5 to 15 knots by mid
afternoon. waves 3 to 5 feet occasionally to 7 feet subsiding to
1 to 3 feet. 
.tonight...south winds 5 to 15 knots becoming southwest 10 to
20 knots late. waves subsiding to calm to 2 feet, then building
to 2 to 4 feet. 
.monday...southwest winds 10 to 20 knots veering west by late
morning, then diminishing to 5 to 15 knots by mid afternoon.
waves subsiding to calm to 2 feet. 
.monday night...northeast winds 5 to 15 knots. a slight chance of
rain. waves calm to 2 feet. 
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a chance of rain in the morning, then
rain likely in the afternoon. waves building to 2 to 4 feet. 
.tuesday night...northeast winds 20 to 30 knots becoming north
gales to 35 knots after midnight. rain and snow. waves building
to 8 to 11 feet occasionally to 14 feet. 
.wednesday...north gales to 40 knots becoming northwest gales to
35 knots. snow showers likely, then a chance of snow showers.
waves building to 9 to 12 feet occasionally to 15 feet, then
subsiding to 6 to 9 feet occasionally to 11 feet. 
.thursday...northwest gales to 35 knots diminishing to 20 to
30 knots. a chance of snow showers. waves subsiding to 3 to
5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 231500
glfls 
expires:202511232100;;368114

open lake forecast for lake superior
national weather service marquette mi
1000 am est sun nov 23 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...

a 29.8 inch trough currently resides on the quebec/ontario lines 
south of james bay, dissipating as it tracks east today. meanwhile, 
a 30.2 inch high passing south of the great lakes today will result 
in a 30.0 inch ridge passing over the lake today. in its wake, a 
29.8 inch truogh will pass just north of lake superior tonight 
through monday. monday night into tuesday, a 29.8 inch low will 
organize just west of the great lakes, deepening to 29.6 inches 
tuesday night over the michigan upper peninsula and passing over 
eastern lake superior at 29.4 inches wednesday. this low deepens 
further to 29.3 inches over quebec thursday while 30.5 inch high 
pressure builds over the northern great plains. this high moves over 
lake superior friday into the weekend.



lsz162-232100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est sun nov 23 2025 /900 am cst sun nov 23 2025/

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

$$

fzus63 kmqt 231500
glfls 
expires:202511232100;;368118

open lake forecast for lake superior
national weather service marquette mi
1000 am est sun nov 23 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...

a 29.8 inch trough currently resides on the quebec/ontario lines 
south of james bay, dissipating as it tracks east today. meanwhile, 
a 30.2 inch high passing south of the great lakes today will result 
in a 30.0 inch ridge passing over the lake today. in its wake, a 
29.8 inch truogh will pass just north of lake superior tonight 
through monday. monday night into tuesday, a 29.8 inch low will 
organize just west of the great lakes, deepening to 29.6 inches 
tuesday night over the michigan upper peninsula and passing over 
eastern lake superior at 29.4 inches wednesday. this low deepens 
further to 29.3 inches over quebec thursday while 30.5 inch high 
pressure builds over the northern great plains. this high moves over 
lake superior friday into the weekend.



lsz266-232100-
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-
1000 am est sun nov 23 2025

.rest of today...northwest winds to 30 knots with a few gale
force gusts to 35 knots possible diminishing to 10 to 20 knots.
waves 9 to 12 feet occasionally to 15 feet subsiding to 3 to
6 feet occasionally to 8 feet. 
.tonight...southwest winds 10 to 20 knots backing south by
midnight, then increasing to 15 to 25 knots late. waves subsiding
to 1 to 3 feet, then building to 2 to 4 feet. 
.monday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots by late morning, then becoming west 5 to 15 knots by mid
afternoon. a slight chance of. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 1 to 3 feet. 
.monday night...north winds 5 to 15 knots veering northeast after
midnight. a chance of rain. waves subsiding to calm to 2 feet. 
.tuesday...east winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. a chance of rain in the morning, then rain in
the afternoon. waves building to 1 to 3 feet. 
.tuesday night...east winds 15 to 25 knots increasing to gales to
35 knots after midnight. rain. snow after midnight. waves
building to 6 to 9 feet occasionally to 11 feet. 
.wednesday...northwest gales to 45 knots. rain. snow showers.
waves building to 12 to 17 feet occasionally to 21 feet, then
subsiding to 10 to 14 feet occasionally to 18 feet. 
.thursday...northwest gales to 35 knots. snow showers. waves
subsiding to 5 to 8 feet occasionally to 10 feet. 

$$