fzus61 kbuf 222102
glflo 
expires:202511230400;;326582

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est sat nov 22 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 30.1 inch high will build over the ohio valley and 
lower great lakes through this evening. a 29.5 inch low will move 
from northern ontario to james bay sunday, sending its cold front 
across the lake through the afternoon hours. 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.


loz063-230400-
lake ontario open waters from hamlin beach to sodus bay-
402 pm est sat nov 22 2025

.tonight...northwest winds 5 to 15 knots becoming southwest. a
chance of rain showers late. waves 1 to 2 feet. 
.sunday...south winds 10 to 15 knots becoming west and increasing
to 15 to 25 knots. a chance of rain showers in the morning, then
rain showers likely early in the afternoon. a chance of rain
showers late. waves 1 to 3 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.sunday night...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. rain showers likely. waves 5 to
9 feet. waves occasionally around 11 feet. 
.monday...northwest winds 15 to 20 knots becoming southwest 5 to
15 knots. waves 3 to 6 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 1 to
3 feet. 
.wednesday...southwest winds around 10 knots becoming west and
increasing to 30 knots. rain showers likely during the day, then
rain showers likely with a chance of snow showers wednesday
night. waves 1 to 2 feet building to 8 to 11 feet. waves
occasionally around 14 feet. 
.thursday...west winds to 30 knots. a chance of snow and rain
showers during the day, then snow showers likely thursday night.
waves 10 to 14 feet. waves occasionally around 18 feet. 

$$

fzus61 kbuf 222102
glflo 
expires:202511230400;;326583

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est sat nov 22 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 30.1 inch high will build over the ohio valley and 
lower great lakes through this evening. a 29.5 inch low will move 
from northern ontario to james bay sunday, sending its cold front 
across the lake through the afternoon hours. 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.


loz064-065-230400-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 pm est sat nov 22 2025

.tonight...northwest winds 5 to 15 knots becoming southwest. a
chance of rain showers late. waves 2 feet or less. 
.sunday...south winds 15 to 25 knots becoming west. rain showers.
waves 1 to 3 feet building to 4 to 7 feet. waves occasionally
around 9 feet. 
.sunday night...west winds 15 to 25 knots becoming northwest.
rain showers likely. waves 5 to 9 feet. waves occasionally around
11 feet. 
.monday...northwest winds 15 to 20 knots becoming southwest 5 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.monday night...south winds 5 to 15 knots. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots diminishing to 10 to
15 knots. showers. waves 1 to 3 feet. 
.wednesday...south winds 10 to 15 knots becoming west and
increasing to 30 knots. rain showers during the day, then rain
showers with snow showers likely wednesday night. waves 1 to
2 feet building to 8 to 11 feet. waves occasionally around
14 feet. 
.thursday...west winds to 30 knots. rain and snow showers likely
during the day, then snow showers likely thursday night. waves
10 to 14 feet building to 11 to 15 feet. waves occasionally
around 19 feet. 

$$

fzus61 kbuf 222102
glflo 
expires:202511230400;;326581

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est sat nov 22 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 30.1 inch high will build over the ohio valley and 
lower great lakes through this evening. a 29.5 inch low will move 
from northern ontario to james bay sunday, sending its cold front 
across the lake through the afternoon hours. 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.


loz062-230400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est sat nov 22 2025

.tonight...west winds 5 to 15 knots becoming southwest. a chance
of rain showers after midnight. waves 2 feet or less. 
.sunday...south winds 10 to 15 knots becoming west and increasing
to 15 to 25 knots. a chance of rain showers. waves 1 to 3 feet
building to 5 to 7 feet. waves occasionally around 9 feet. 
.sunday night...west winds 15 to 25 knots becoming northwest. a
chance of showers in the evening. 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 2 to
4 feet subsiding to 1 to 3 feet. 
.monday night...south winds 5 to 10 knots. waves 1 foot or less. 
.tuesday...south winds 5 to 10 knots becoming southwest. showers.
waves 1 foot or less. 
.wednesday...southwest winds 10 to 15 knots becoming west and
increasing to 30 knots. rain showers likely during the day, then
rain showers likely with a chance of snow showers wednesday
night. waves 1 to 2 feet building to 6 to 10 feet. waves
occasionally around 13 feet. 
.thursday...west winds to 30 knots. a chance of snow showers.
waves 8 to 12 feet. waves occasionally around 15 feet. 

$$

fzus61 kcle 222006
glfle 
expires:202511230330;;324222

open lake forecast for lake erie
national weather service cleveland oh
306 pm est sat nov 22 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...
low pressure 29.70 inches will pass from the northern great lakes
tonight through the eastern great lakes sunday. this will lift a
warm front across the lake tonight followed by a cold front 
sweeping across the lake sunday morning. high pressure 30.30 
inches will build over the lake sunday night into monday. another 
low pressure 29.70 inches will lift into the upper midwest 
tuesday, moving a warm front north early tuesday followed by a
strong cold front tuesday night into wednesday as the low lifts 
through the northern great lakes and deepens to 29.20 inches by 
late wednesday. a surface trough averaging 29.90 inches will 
linger in its wake through friday.


lez061-168-169-230330-
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-
306 pm est sat nov 22 2025

.tonight...west winds 10 knots or less becoming southwest and
increasing to 15 to 20 knots after midnight. a slight chance of
rain after midnight. waves 2 feet or less building to 2 to
4 feet. 
.sunday...southwest winds 15 to 25 knots becoming west. a chance
of rain through early afternoon, then a slight chance of rain
late. waves 3 to 6 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
10 to 15 knots. waves 4 to 7 feet subsiding to 2 to 3 feet. waves
occasionally around 9 feet. 
.monday...west winds 5 to 10 knots becoming south. waves 1 to
2 feet. 
.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 becoming southwest. rain.
waves 1 to 3 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west to
30 knots. rain likely during the day, then a chance of rain and
snow wednesday night. waves 5 to 8 feet building to 9 to 13 feet.
waves occasionally around 16 feet. 
.thursday...west winds to 30 knots. a chance of snow. waves 9 to
12 feet subsiding to 7 to 10 feet. waves occasionally around
15 feet. 

$$

fzus61 kcle 222006
glfle 
expires:202511230330;;324220

open lake forecast for lake erie
national weather service cleveland oh
306 pm est sat nov 22 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...
low pressure 29.70 inches will pass from the northern great lakes
tonight through the eastern great lakes sunday. this will lift a
warm front across the lake tonight followed by a cold front 
sweeping across the lake sunday morning. high pressure 30.30 
inches will build over the lake sunday night into monday. another 
low pressure 29.70 inches will lift into the upper midwest 
tuesday, moving a warm front north early tuesday followed by a
strong cold front tuesday night into wednesday as the low lifts 
through the northern great lakes and deepens to 29.20 inches by 
late wednesday. a surface trough averaging 29.90 inches will 
linger in its wake through friday.


lez162>164-230330-
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-
306 pm est sat nov 22 2025

.tonight...southwest winds 5 to 10 knots increasing to 15 to
20 knots. waves 1 foot or less building to 1 to 3 feet. 
.sunday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday night...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 becoming southeast.
rain likely overnight. waves 2 feet or less. 
.tuesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. rain during the day, then a chance of rain tuesday
night. waves 1 to 3 feet. 
.wednesday...southwest winds to 30 knots becoming west. a chance
of rain during the day. waves 3 to 6 feet building to 5 to
8 feet. waves occasionally around 10 feet. 
.thursday...west winds to 30 knots diminishing to 15 to 25 knots.
waves 4 to 7 feet subsiding to 3 to 6 feet. waves occasionally
around 9 feet. 

$$

fzus61 kcle 222006
glfle 
expires:202511230330;;324221

open lake forecast for lake erie
national weather service cleveland oh
306 pm est sat nov 22 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...
low pressure 29.70 inches will pass from the northern great lakes
tonight through the eastern great lakes sunday. this will lift a
warm front across the lake tonight followed by a cold front 
sweeping across the lake sunday morning. high pressure 30.30 
inches will build over the lake sunday night into monday. another 
low pressure 29.70 inches will lift into the upper midwest 
tuesday, moving a warm front north early tuesday followed by a
strong cold front tuesday night into wednesday as the low lifts 
through the northern great lakes and deepens to 29.20 inches by 
late wednesday. a surface trough averaging 29.90 inches will 
linger in its wake through friday.


lez165>167-230330-
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-
306 pm est sat nov 22 2025

.tonight...west winds 10 knots or less becoming southwest and
increasing to 15 to 20 knots after midnight. a slight chance of
rain after midnight. waves 1 foot or less building to 3 to
5 feet. 
.sunday...west winds 15 to 25 knots. waves 3 to 6 feet building
to 4 to 7 feet, then subsiding to 3 to 6 feet. waves occasionally
around 9 feet. 
.sunday night...northwest winds 15 to 20 knots becoming west 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday...southwest winds 10 knots or less becoming south. 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 15 to 20 knots becoming southwest. rain.
waves 1 to 3 feet building to 2 to 4 feet. 
.wednesday...southwest winds to 30 knots becoming west. a chance
of rain during the day, then a chance of rain and snow wednesday
night. waves 6 to 9 feet building to 8 to 12 feet. waves
occasionally around 15 feet. 
.thursday...west winds to 30 knots. a chance of snow. waves 7 to
11 feet subsiding to 6 to 9 feet. waves occasionally around
14 feet. 

$$

fzus63 kdtx 222040
glfsc 
expires:202511230445;;325629

lake st clair forecast
national weather service detroit/pontiac mi
340 pm est sat nov 22 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...low pressure tracking through northern ontario this
evening will drag a cold front through the region tonight.
northwest wind gusts behind the front on sunday will reach into
the 25 to 35 knot range over lake huron. winds quickly diminish
sunday evening/night as a ridge of high pressure, 30.20 inches,
arrives.


lcz460-230445-
lake st clair-
340 pm est sat nov 22 2025

.tonight...south winds 5 to 10 knots becoming southwest 10 to 15
knots in the late evening and overnight. mostly cloudy until early
morning becoming partly cloudy. waves 2 feet or less.
.sunday...west winds 10 to 20 knots. partly sunny. waves 2 feet 
or less.
.sunday night...northwest winds 10 to 15 knots becoming west 5 to 10
knots in the late evening and overnight. clear. waves 2 feet or
less.
.monday...south winds 5 to 10 knots. partly sunny. waves 2 feet or
less.
.monday night...south winds 10 to 15 knots. cloudy. a chance of
light rain after midnight. waves 2 feet or less.
.tuesday...south winds 10 to 15 knots becoming southwest 5 to 10
knots in the evening. light rain...then a chance of light rain in
the evening. 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 2 to 4 feet.

$$

fzus63 kdtx 222039
glflh 
expires:202511230445;;325625

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm est sat nov 22 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...low pressure tracking through northern ontario this
evening will drag a cold front through the region tonight.
northwest wind gusts behind the front on sunday will reach into
the 25 to 35 knot range over lake huron. winds quickly diminish
sunday evening/night as a ridge of high pressure, 30.20 inches,
arrives.


lhz361-362-230445-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
339 pm est sat nov 22 2025

...gale warning in effect from sunday morning through sunday
afternoon...

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


$$

fzus63 kdtx 222039
glflh 
expires:202511230445;;325626

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm est sat nov 22 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...low pressure tracking through northern ontario this
evening will drag a cold front through the region tonight.
northwest wind gusts behind the front on sunday will reach into
the 25 to 35 knot range over lake huron. winds quickly diminish
sunday evening/night as a ridge of high pressure, 30.20 inches,
arrives.


lhz363-462>464-230445-
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-
339 pm est sat nov 22 2025

.tonight...southwest winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. a chance of rain in
the evening. waves 1 to 3 feet building to 4 to 6 feet in the
late evening and overnight. waves occasionally around 8 feet. 
.sunday...west winds 15 to 20 knots increasing to 20 to 25 knots
in the late morning and early afternoon...then becoming northwest
15 to 20 knots late in the afternoon. gusts to 30 knots. waves
5 to 7 feet building to 8 to 12 feet in the afternoon. waves
occasionally around 15 feet. 
.sunday night...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 early in the afternoon. waves 1 to 3 feet building to
3 to 5 feet in the late morning and afternoon. 
.monday night...south winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. 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 afternoon...then increasing to 10 to 15 knots late in
the evening. a chance of rain...then rain likely late in the
evening. waves 3 to 5 feet. 
.wednesday...southwest winds 20 to 25 knots with gusts to around
30 knots increasing to 40 knot gales with gusts to 45 knot gales.
rain likely early in the morning...then a chance of rain and snow
in the late morning and early afternoon. snow likely until early
morning. 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 evening and early morning. gusts to 40 knot gales. a chance
of snow. waves 10 to 14 feet. waves occasionally around 18 feet. 


$$

fzus63 kmkx 221945
glflm 
expires:202511230415;;323375

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
145 pm cst sat nov 22 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...

breezy southwest winds will continue this afternoon as weak low 
pressure of 29.7 inches progresses through lake superior. winds 
shift northwesterly tonight with the passage of a cold front. 
gusts up to 30 kt are expected over the open lake. 

high pressure around 30.1 inches briefly returns sunday. modest 
southerly winds will develop monday as low pressure of 28.7 
inches moves into the upper mississippi river valley. the low will
strengthen over minnesota and wisconsin on tuesday and cross lake
superior as a 29.4 inch low early wednesday morning. timing and
strength of this low remain uncertain, but a period of gale force
gusts is looking likely over lake michigan wednesday and thursday.


lmz261-362-364-366-563-565-567-868-230415-
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-
145 pm cst sat nov 22 2025

sheboygan wi to pentwater mi north...

.tonight...southwest winds to 30 kt becoming northwest. slight
chance of rain this evening. waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 7 ft occasionally to 9 ft. 
.sunday...northwest winds to 30 kt becoming west 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.sunday night...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 3 ft. 
.monday...southwest winds 15 to 25 kt becoming south to 30 kt.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. 
.monday night...south winds 15 to 25 kt diminishing to 10 to
20 kt. rain likely. waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft. 
.tuesday...south winds 10 to 20 kt diminishing to 10 to 15 kt.
rain likely. waves 2 to 4 ft. 
.tuesday night...southwest winds 15 to 25 kt increasing to 30 kt.
rain. waves 3 to 5 ft building to 6 to 9 ft occasionally to
12 ft. 
.wednesday...west gales to 40 kt. chance of snow. waves 8 to
12 ft occasionally to 16 ft. 
.thursday...northwest gales to 40 kt diminishing to gales to
35 kt. chance of snow. waves 8 to 11 ft occasionally to 14 ft
subsiding to 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 221945
glflm 
expires:202511230415;;323376

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
145 pm cst sat nov 22 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...

breezy southwest winds will continue this afternoon as weak low 
pressure of 29.7 inches progresses through lake superior. winds 
shift northwesterly tonight with the passage of a cold front. 
gusts up to 30 kt are expected over the open lake. 

high pressure around 30.1 inches briefly returns sunday. modest 
southerly winds will develop monday as low pressure of 28.7 
inches moves into the upper mississippi river valley. the low will
strengthen over minnesota and wisconsin on tuesday and cross lake
superior as a 29.4 inch low early wednesday morning. timing and
strength of this low remain uncertain, but a period of gale force
gusts is looking likely over lake michigan wednesday and thursday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-230415-
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-
145 pm cst sat nov 22 2025

sheboygan wi to pentwater mi south...

.tonight...southwest winds to 30 kt veering to northwest 15 to
25 kt. waves 5 to 8 ft occasionally to 10 ft. 
.sunday...northwest winds 15 to 25 kt becoming west 10 to 15 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.sunday night...west winds 5 to 10 kt becoming southwest late in
the evening, then increasing to 10 to 15 kt after midnight
increasing to 10 to 20 kt late. waves 2 to 4 ft subsiding to 1 to
3 ft. 
.monday...south winds 15 to 25 kt. waves 4 to 6 ft occasionally
to 8 ft. 
.monday night...south winds 10 to 20 kt. rain likely in the
evening, then rain overnight. waves 4 to 6 ft occasionally to
8 ft subsiding to 3 to 5 ft. 
.tuesday...south winds 10 to 15 kt becoming southwest. rain
likely in the morning, then chance of rain in the afternoon.
waves 2 to 4 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming west to
30 kt. chance of rain. waves 3 to 5 ft building to 7 to 10 ft
occasionally to 13 ft. 
.wednesday...west gales to 35 kt increasing to gales to 40 kt.
chance of rain and snow. waves 10 to 14 ft occasionally to 18 ft.
.thursday...west winds to 30 kt becoming northwest. waves 10 to
14 ft occasionally to 18 ft subsiding to 8 to 11 ft occasionally
to 14 ft.  

$$

fzus63 kmqt 222101
glfls 
expires:202511230900;;326298

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat nov 22 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 weak 29.0 inch low track se across lake superior tonight through 
early sunday. the weak low presses east and weakens to 29.0 inches 
while 30.0 inch ridging returns overhead lake superior through 
monday. broad 29.9 inch low pressure then emanates out of the plains 
and northern rockies before deepening to near 29.4 inch low pressure 
over lake superior wednesday. this low then deepens to near 29.1 
inches while ascending north into quebec thursday while 30.4 inch 
high pressure returns to the plains. this creates a strong pressure 
gradient over lake superior thursday and friday before the pressure 
gradient slackens as the high pressure moves into the great lakes.



lsz162-230900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est sat nov 22 2025 /300 pm cst sat nov 22 2025/

.late this afternoon...west winds 20 to 30 knots. waves 2 to
4 feet. 
.tonight...west winds 20 to 30 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.sunday...west winds 10 to 20 knots backing southwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.sunday night...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.monday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots backing northeast after
midnight. a chance of rain showers in the evening, then rain
showers likely after midnight. waves calm to 2 feet. 
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. rain showers. waves building to 2 to
4 feet. 
.tuesday night...north winds 20 to 30 knots. rain showers,
possibly mixed with snow. waves building to 3 to 6 feet
occasionally to 8 feet. 
.wednesday...northwest gales to 35 knots. snow showers likely,
then a chance of snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.thursday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 222101
glfls 
expires:202511230900;;326299

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat nov 22 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 weak 29.0 inch low track se across lake superior tonight through 
early sunday. the weak low presses east and weakens to 29.0 inches 
while 30.0 inch ridging returns overhead lake superior through 
monday. broad 29.9 inch low pressure then emanates out of the plains 
and northern rockies before deepening to near 29.4 inch low pressure 
over lake superior wednesday. this low then deepens to near 29.1 
inches while ascending north into quebec thursday while 30.4 inch 
high pressure returns to the plains. this creates a strong pressure 
gradient over lake superior thursday and friday before the pressure 
gradient slackens as the high pressure moves into the great lakes.



lsz263-230900-
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-
400 pm est sat nov 22 2025

.late this afternoon...west winds 15 to 25 knots. a slight chance
of rain showers. waves 2 to 4 feet. 
.tonight...west winds 20 to 30 knots veering northwest by
midnight. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to 20 knots
by late morning, then backing southwest by mid afternoon. waves
subsiding to 1 to 3 feet. 
.sunday night...southwest winds 5 to 15 knots increasing to 10 to
20 knots late. waves subsiding to calm to 2 feet. 
.monday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots. a chance of rain
showers in the evening, then rain showers likely after midnight.
waves calm to 2 feet. 
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. rain showers. waves building to 3 to
6 feet occasionally to 8 feet. 
.tuesday night...north winds 20 to 30 knots increasing to gales
to 35 knots after midnight. rain showers, possibly mixed with
snow. waves building to 6 to 9 feet occasionally to 11 feet. 
.wednesday...northwest gales to 40 knots. snow showers likely,
then a chance of snow showers. waves building to 6 to 10 feet
occasionally to 13 feet. 
.thursday...northwest gales to 35 knots diminishing to 20 to
30 knots. waves subsiding to 3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 222101
glfls 
expires:202511230900;;326300

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat nov 22 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 weak 29.0 inch low track se across lake superior tonight through 
early sunday. the weak low presses east and weakens to 29.0 inches 
while 30.0 inch ridging returns overhead lake superior through 
monday. broad 29.9 inch low pressure then emanates out of the plains 
and northern rockies before deepening to near 29.4 inch low pressure 
over lake superior wednesday. this low then deepens to near 29.1 
inches while ascending north into quebec thursday while 30.4 inch 
high pressure returns to the plains. this creates a strong pressure 
gradient over lake superior thursday and friday before the pressure 
gradient slackens as the high pressure moves into the great lakes.



lsz264-230900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est sat nov 22 2025

.late this afternoon...southwest winds 15 to 25 knots. a chance
of rain showers. waves 2 to 4 feet. 
.tonight...west winds 20 to 30 knots veering northwest by
midnight. a slight chance of rain showers in the evening. waves
building to 6 to 9 feet occasionally to 11 feet. 
.sunday...northwest winds 20 to 30 knots becoming west 15 to
25 knots by late morning, then diminishing to 10 to 20 knots by
mid afternoon. waves subsiding to 2 to 4 feet. 
.sunday night...southwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.monday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots. a chance of rain
showers in the evening, then rain showers likely after midnight.
waves building to 1 to 3 feet. 
.tuesday...east winds 10 to 20 knots becoming northeast 15 to
25 knots in the afternoon. rain showers likely. waves building to
3 to 6 feet occasionally to 8 feet. 
.tuesday night...northeast winds 20 to 30 knots becoming north
gales to 35 knots after midnight. rain showers, possibly mixed
with snow. waves building to 6 to 9 feet occasionally to 11 feet.
.wednesday...northwest gales to 40 knots. snow showers likely.
waves building to 7 to 10 feet occasionally to 13 feet. 
.thursday...northwest gales to 40 knots. a chance of snow
showers. waves subsiding to 4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 222101
glfls 
expires:202511230900;;326301

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat nov 22 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 weak 29.0 inch low track se across lake superior tonight through 
early sunday. the weak low presses east and weakens to 29.0 inches 
while 30.0 inch ridging returns overhead lake superior through 
monday. broad 29.9 inch low pressure then emanates out of the plains 
and northern rockies before deepening to near 29.4 inch low pressure 
over lake superior wednesday. this low then deepens to near 29.1 
inches while ascending north into quebec thursday while 30.4 inch 
high pressure returns to the plains. this creates a strong pressure 
gradient over lake superior thursday and friday before the pressure 
gradient slackens as the high pressure moves into the great lakes.



lsz265-230900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est sat nov 22 2025

...gale warning in effect from midnight est tonight through
sunday morning...

.late this afternoon...southwest winds 15 to 25 knots. a chance
of rain showers. waves 2 to 4 feet. 
.tonight...west winds 20 to 30 knots becoming northwest gales to
40 knots by midnight. a slight chance of rain showers in the
evening. waves building to 5 to 8 feet occasionally to 10 feet. 
.sunday...northwest gales to 35 knots becoming west 20 to
30 knots by late morning, then diminishing to 10 to 20 knots by
mid afternoon. waves subsiding to calm to 2 feet. 
.sunday night...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.monday...southwest winds 10 to 20 knots backing south in the
afternoon. a slight chance of showers in the afternoon. waves
calm to 2 feet. 
.monday night...south winds 5 to 15 knots backing southeast after
midnight. rain showers. waves calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots becoming east 15 to
25 knots in the afternoon. rain showers. waves building to 1 to
3 feet. 
.tuesday night...east winds 15 to 25 knots becoming north gales
to 35 knots after midnight. rain showers. snow showers after
midnight. waves building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...northwest gales to 45 knots. snow showers. waves
building to 6 to 9 feet occasionally to 11 feet. 
.thursday...northwest gales to 40 knots. snow showers. waves
subsiding to 5 to 8 feet occasionally to 10 feet, then building
to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 222101
glfls 
expires:202511230900;;326302

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat nov 22 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 weak 29.0 inch low track se across lake superior tonight through 
early sunday. the weak low presses east and weakens to 29.0 inches 
while 30.0 inch ridging returns overhead lake superior through 
monday. broad 29.9 inch low pressure then emanates out of the plains 
and northern rockies before deepening to near 29.4 inch low pressure 
over lake superior wednesday. this low then deepens to near 29.1 
inches while ascending north into quebec thursday while 30.4 inch 
high pressure returns to the plains. this creates a strong pressure 
gradient over lake superior thursday and friday before the pressure 
gradient slackens as the high pressure moves into the great lakes.



lsz266-230900-
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-
400 pm est sat nov 22 2025

...gale warning in effect from midnight est tonight through
sunday morning...

.late this afternoon...south winds 20 to 30 knots. a chance of
rain showers. waves 3 to 6 feet occasionally to 8 feet. 
.tonight...southwest winds 20 to 30 knots becoming northwest
gales to 40 knots by midnight. a chance of rain showers. waves
building to 9 to 12 feet occasionally to 15 feet. 
.sunday...northwest gales to 35 knots diminishing to 20 to
30 knots by late morning, then becoming west 15 to 25 knots by
mid afternoon. waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.sunday night...southwest winds 10 to 20 knots backing south by
midnight, then veering southwest late. waves subsiding to calm to
2 feet. 
.monday...southwest winds 15 to 25 knots becoming south 10 to
20 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves building to 1 to 3 feet. 
.monday night...south winds 10 to 20 knots. rain showers. waves
1 to 3 feet. 
.tuesday...southeast winds 10 to 20 knots. rain showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...southeast winds 15 to 25 knots becoming south
20 to 30 knots after midnight. rain showers. snow showers after
midnight. waves building to 6 to 9 feet occasionally to 11 feet. 
.wednesday...northwest gales to 40 knots. snow showers. waves
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 9 to 12 feet occasionally to 15 feet. 
.thursday...northwest gales to 40 knots. snow showers. waves
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 222101
glfls 
expires:202511230900;;326303

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat nov 22 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 weak 29.0 inch low track se across lake superior tonight through 
early sunday. the weak low presses east and weakens to 29.0 inches 
while 30.0 inch ridging returns overhead lake superior through 
monday. broad 29.9 inch low pressure then emanates out of the plains 
and northern rockies before deepening to near 29.4 inch low pressure 
over lake superior wednesday. this low then deepens to near 29.1 
inches while ascending north into quebec thursday while 30.4 inch 
high pressure returns to the plains. this creates a strong pressure 
gradient over lake superior thursday and friday before the pressure 
gradient slackens as the high pressure moves into the great lakes.



lsz267-230900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est sat nov 22 2025

...gale warning in effect from midnight est tonight through
sunday morning...

.late this afternoon...south winds 20 to 30 knots. rain showers
likely. waves 3 to 5 feet occasionally to 7 feet. 
.tonight...southwest winds 20 to 30 knots veering west by
midnight, then becoming northwest gales to 35 knots late. a
chance of rain showers. waves building to 9 to 12 feet
occasionally to 15 feet. 
.sunday...northwest gales to 40 knots diminishing to 20 to
30 knots by mid afternoon. a slight chance of rain showers in the
morning. waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.sunday night...west winds 10 to 20 knots backing south by
midnight. waves subsiding to 1 to 3 feet. 
.monday...southwest winds 15 to 25 knots backing south in the
afternoon. a slight chance of rain showers in the afternoon.
waves subsiding to calm to 2 feet. 
.monday night...south winds 10 to 20 knots. rain showers. waves
building to 1 to 3 feet. 
.tuesday...southeast winds 10 to 20 knots. rain showers. waves
building to 2 to 4 feet. 
.tuesday night...southeast winds 15 to 25 knots becoming south
20 to 30 knots after midnight. rain showers. waves building to
4 to 7 feet occasionally to 9 feet. 
.wednesday...west gales to 35 knots becoming northwest gales to
40 knots. rain showers. snow showers. waves building to 10 to
14 feet occasionally to 18 feet, then subsiding to 9 to 12 feet
occasionally to 15 feet. 
.thursday...northwest gales to 35 knots. snow showers. waves
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 6 to 9 feet occasionally to 11 feet. 

$$