fzus61 kbuf 040203
glflo 
expires:202610040900;;493171

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat oct 3 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.3 inch high will slide northeast across northern 
new england tonight. a 29.7 inch low over northwest ontario sunday 
will deepen to 29.4 inches as it slides just south of james bay over 
central quebec sunday night, while sending a pair of cold fronts 
across the lake. a 30.2 inch high over the upper midwest will then 
build across the great lakes monday into tuesday, before sliding 
into the northeast wednesday. a cold front will then pass across the 
lake thursday.


loz063>065-040900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sat oct 3 2026

.overnight...east winds 10 to 15 knots becoming southeast
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...southeast winds 15 to 20 knots becoming south 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.sunday night...south winds 10 to 15 knots becoming west 15 to
20 knots. a chance of showers. waves 1 to 3 feet building to 3 to
6 feet. 
.monday...northwest winds to 30 knots. waves 5 to 8 feet. waves
occasionally around 10 feet. 
.monday night...northwest winds 15 to 25 knots. waves 5 to 8 feet
subsiding to 2 to 4 feet. waves occasionally around 10 feet. 
.tuesday...northwest winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 
.wednesday...south winds 15 to 20 knots becoming southwest. a
chance of showers wednesday night. waves 3 to 5 feet subsiding to
2 to 4 feet. 
.thursday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 

$$

fzus61 kbuf 040203
glflo 
expires:202610040900;;493170

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat oct 3 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.3 inch high will slide northeast across northern 
new england tonight. a 29.7 inch low over northwest ontario sunday 
will deepen to 29.4 inches as it slides just south of james bay over 
central quebec sunday night, while sending a pair of cold fronts 
across the lake. a 30.2 inch high over the upper midwest will then 
build across the great lakes monday into tuesday, before sliding 
into the northeast wednesday. a cold front will then pass across the 
lake thursday.


loz062-040900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sat oct 3 2026

.overnight...east winds 10 to 15 knots becoming southeast
15 to 20 knots. waves 1 to 3 feet. 
.sunday...southeast winds 5 to 10 knots becoming southwest. waves
1 to 3 feet subsiding to 1 foot or less. 
.sunday night...southwest winds 10 to 15 knots becoming northwest
15 to 20 knots. a chance of showers. waves 1 to 3 feet building
to 3 to 5 feet. 
.monday...northwest 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. 
.monday night...northwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.tuesday...northwest winds 10 knots or less becoming southwest
10 to 15 knots. waves 2 feet or less. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 2 to 4 feet. 
.thursday...west winds 10 to 15 knots. waves 1 to 3 feet. 

$$

fzus61 kcle 040159
glfle 
expires:202610040815;;493041

open lake forecast for lake erie
national weather service cleveland oh
959 pm edt sat oct 3 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a cold front will cross the lake on sunday, followed by high 
pressure 30.40 inches through mid-next week.


lez164>166-040815-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-
959 pm edt sat oct 3 2026

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

$$

fzus61 kcle 040159
glfle 
expires:202610040815;;493042

open lake forecast for lake erie
national weather service cleveland oh
959 pm edt sat oct 3 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a cold front will cross the lake on sunday, followed by high 
pressure 30.40 inches through mid-next week.


lez061-167>169-040815-
ripley to buffalo ny extending from 5nm 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-
959 pm edt sat oct 3 2026

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

$$

fzus61 kcle 040159
glfle 
expires:202610040815;;493040

open lake forecast for lake erie
national weather service cleveland oh
959 pm edt sat oct 3 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a cold front will cross the lake on sunday, followed by high 
pressure 30.40 inches through mid-next week.


lez162-163-040815-
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-
959 pm edt sat oct 3 2026

.overnight...east winds 10 knots or less becoming south.
waves 2 feet or less. 
.sunday...southwest winds 10 knots or less becoming west. waves
1 foot or less. 
.sunday night...west winds 5 to 10 knots becoming northwest and
increasing to 15 to 20 knots. waves 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots. waves 1 to 2 feet. 
.monday night...northwest winds 5 to 10 knots. waves 1 foot or
less. 
.tuesday...west winds 10 knots or less becoming southwest and
increasing to 15 to 20 knots. waves 2 feet or less. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 1 to 2 feet. 
.thursday...west winds 5 to 10 knots. waves 2 feet or less. 

$$

fzus63 kdtx 040206
glfsc 
expires:202610041015;;493288

lake st clair forecast
national weather service detroit/pontiac mi
1006 pm edt sat oct 3 2026

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

.synopsis...high pressure, 30.30 inches, will quickly exit east of
the region tonight. low pressure of 29.62 inches then tracks east
across southern ontario tonight into sunday, intensifying to
around 29.44 inches as it tracks east across the james bay area
sunday night. this low will drive a cold front across the region
on sunday, resulting in south winds to start the day becoming
west and northwesterly throughout sunday afternoon and evening.
northwest winds increase to around 25 to 30 knots sunday night
into monday morning, with gale force gusts to 35 knots appearing
more likely.


lcz460-041015-
lake st clair-
1006 pm edt sat oct 3 2026

.rest of tonight...east winds 5 to 10 knots. mostly clear. waves 2
feet or less.
.sunday...light and variable winds becoming southwest 5 to 10 knots
in the afternoon. sunny becoming partly sunny late in the morning
becoming mostly sunny. waves 2 feet or less.
.sunday night...west winds 10 to 15 knots becoming northwest 15 to
20 knots in the late evening and overnight. mostly clear. waves 2
feet or less.
.monday...northwest winds 10 to 15 knots. sunny. waves 2 feet or
less.
.monday night...north winds 5 to 10 knots. clear. waves 2 feet or
less.
.tuesday...light and variable winds becoming south 5 to 10 knots in
the afternoon...then increasing to 10 to 15 knots in the evening.
clear. waves 2 feet or less.
.wednesday...west winds 15 to 20 knots. mostly clear. waves 1 to 3
feet.
.thursday...west winds 10 to 15 knots. mostly clear. waves 2 feet or
less.

$$

fzus63 kdtx 040205
glflh 
expires:202610041015;;493278

open lake forecast for lake huron
national weather service detroit/pontiac mi
1005 pm edt sat oct 3 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.30 inches, will quickly exit east of
the region tonight. low pressure of 29.62 inches then tracks east
across southern ontario tonight into sunday, intensifying to
around 29.44 inches as it tracks east across the james bay area
sunday night. this low will drive a cold front across the region
on sunday, resulting in south winds to start the day becoming
west and northwesterly throughout sunday afternoon and evening.
northwest winds increase to around 25 to 30 knots sunday night
into monday morning, with gale force gusts to 35 knots appearing
more likely.


lhz462>464-041015-
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-
1005 pm edt sat oct 3 2026

.rest of tonight...southeast winds 10 to 15 knots. waves 1 to
3 feet. 
.sunday...south winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet. 
.sunday night...northwest winds 15 to 20 knots. waves 4 to
6 feet. 
.monday...northwest winds 20 to 25 knots decreasing to 10 to
15 knots. waves 5 to 7 feet. waves occasionally around 10 feet. 
.monday night...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. waves 3 to 5 feet. 
.tuesday...west winds 5 to 10 knots backing to the southwest late
in the morning...then becoming south 15 to 20 knots late in the
afternoon. waves 1 to 3 feet building to 3 to 5 feet late in the
afternoon. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet . 
.thursday...west winds 10 to 15 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 040205
glflh 
expires:202610041015;;493276

open lake forecast for lake huron
national weather service detroit/pontiac mi
1005 pm edt sat oct 3 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.30 inches, will quickly exit east of
the region tonight. low pressure of 29.62 inches then tracks east
across southern ontario tonight into sunday, intensifying to
around 29.44 inches as it tracks east across the james bay area
sunday night. this low will drive a cold front across the region
on sunday, resulting in south winds to start the day becoming
west and northwesterly throughout sunday afternoon and evening.
northwest winds increase to around 25 to 30 knots sunday night
into monday morning, with gale force gusts to 35 knots appearing
more likely.


lhz361-362-041015-
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-
1005 pm edt sat oct 3 2026

...gale watch in effect from sunday evening through monday
morning...

.rest of tonight...south winds 10 to 15 knots increasing to 15 to
20 knots early in the morning. a chance of rain after midnight.
waves 1 to 3 feet building to 3 to 5 feet after midnight. 
.sunday...south winds 15 to 20 knots increasing to 20 to 25 knots
late in the morning...then becoming west 15 to 20 knots in the
afternoon. gusts to 30 knots. a chance of rain in the morning.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.sunday night...northwest winds 20 to 25 knots with gusts to
35 knot gales. waves 6 to 9 feet. waves occasionally around
12 feet. 
.monday...northwest winds 20 to 25 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots with gusts to around 30 knots
in the late morning and afternoon. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.monday night...northwest winds 15 to 20 knots becoming light and
variable. waves 4 to 6 feet subsiding to 1 to 3 feet after
midnight. waves occasionally around 8 feet. 
.tuesday...light and variable winds becoming south 15 to 20 knots
with gusts to around 30 knots. waves 2 feet or less building to
5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...southwest winds 15 to 20 knots with gusts to around
30 knots becoming west 10 to 15 knots. waves 3 to 5 feet. 
.thursday...west winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet. 


$$

fzus63 kdtx 040205
glflh 
expires:202610041015;;493277

open lake forecast for lake huron
national weather service detroit/pontiac mi
1005 pm edt sat oct 3 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.30 inches, will quickly exit east of
the region tonight. low pressure of 29.62 inches then tracks east
across southern ontario tonight into sunday, intensifying to
around 29.44 inches as it tracks east across the james bay area
sunday night. this low will drive a cold front across the region
on sunday, resulting in south winds to start the day becoming
west and northwesterly throughout sunday afternoon and evening.
northwest winds increase to around 25 to 30 knots sunday night
into monday morning, with gale force gusts to 35 knots appearing
more likely.


lhz363-041015-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
1005 pm edt sat oct 3 2026

.rest of tonight...south winds 10 to 15 knots increasing to 15 to
20 knots early in the morning. a chance of rain after midnight.
waves 1 to 3 feet building to 2 to 4 feet early in the morning. 
.sunday...southwest winds 15 to 20 knots becoming west 10 to
15 knots late in the afternoon. a chance of rain in the morning.
waves 3 to 5 feet. 
.sunday night...northwest winds 15 to 20 knots increasing to
20 to 25 knots with gusts to around 30 knots in the late evening
and overnight. waves 5 to 7 feet. waves occasionally around
10 feet. 
.monday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.monday night...northwest winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 3 to 5 feet. 
.tuesday...light and variable winds becoming southwest 5 to
10 knots late in the morning...then becoming south 15 to 20 knots
with gusts to around 30 knots late in the afternoon becoming
southwest 20 to 25 knots with gusts to around 30 knots late in
the evening. waves 1 to 3 feet building to 4 to 6 feet late in
the afternoon. waves occasionally around 8 feet. 
.wednesday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots until early evening...then
veering to the west by midnight. waves 5 to 7 feet subsiding to
2 to 4 feet. waves occasionally around 10 feet. 
.thursday...west winds 10 to 15 knots. waves 1 to 3 feet. 


$$

fzus63 kmkx 040155
glflm 
expires:202610040915;;492833

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 pm cdt sat oct 3 2026

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

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

.synopsis...

low pressure around 29.8 inches just northwest of lake superior
will deepen to 29.4 inches as it approaches james bay late sunday
afternoon. its cold front will sweep across lake michigan sunday
morning. breezy south to southwest winds tonight will shift
northwesterly by late sunday morning. the strongest winds will be
across far northern lake michigan and remain just below gale 
force. lessening northwest winds will continue through the day 
monday, tapering monday night as 30.2 inch high pressure moves in 
from the upper mississippi river valley. 

a deeper area of 29.4 inch low pressure will build toward the 
hudson bay tuesday through thursday. south-southwest winds will 
increase in advance of the approaching low tuesday afternoon 
through wednesday, becoming gusty at times. a few gusts could 
approach gale-force, particularly over the northern half of the 
open waters. will be monitoring for possible headlines as this 
portion of the period draws closer. the low will pull a cold front
across the waters wednesday night into thursday, bringing a west-
northwest wind shift and scattered rain showers. 



lmz080-669-671-673-675-777-779-870-872-874-876-878-040915-
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-
855 pm cdt sat oct 3 2026

sheboygan wi to pentwater mi south...

.rest of tonight...south winds 10 to 20 kt becoming southwest
15 to 25 kt. slight chance of showers overnight. waves 4 to 6 ft
occasionally to 8 ft. 
.sunday...southwest winds 15 to 25 kt veering to northwest 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.sunday night...northwest winds 10 to 20 kt becoming north. waves
3 to 5 ft. 
.monday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.monday night...east winds 5 to 10 kt becoming south 10 to 20 kt
overnight. waves 1 to 3 ft. 
.tuesday...south winds to 30 kt. waves 4 to 7 ft occasionally to 
9 ft building to 8 to 11 ft occasionally to 14 ft.
.tuesday night...south winds to 30 kt becoming southwest. waves
7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft. 
.wednesday...west winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.thursday...northwest winds 10 to 20 kt becoming west. waves 2 to
4 ft.  

$$

fzus63 kmkx 040155
glflm 
expires:202610040915;;492832

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 pm cdt sat oct 3 2026

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

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

.synopsis...

low pressure around 29.8 inches just northwest of lake superior
will deepen to 29.4 inches as it approaches james bay late sunday
afternoon. its cold front will sweep across lake michigan sunday
morning. breezy south to southwest winds tonight will shift
northwesterly by late sunday morning. the strongest winds will be
across far northern lake michigan and remain just below gale 
force. lessening northwest winds will continue through the day 
monday, tapering monday night as 30.2 inch high pressure moves in 
from the upper mississippi river valley. 

a deeper area of 29.4 inch low pressure will build toward the 
hudson bay tuesday through thursday. south-southwest winds will 
increase in advance of the approaching low tuesday afternoon 
through wednesday, becoming gusty at times. a few gusts could 
approach gale-force, particularly over the northern half of the 
open waters. will be monitoring for possible headlines as this 
portion of the period draws closer. the low will pull a cold front
across the waters wednesday night into thursday, bringing a west-
northwest wind shift and scattered rain showers. 



lmz261-362-364-366-563-565-567-868-040915-
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-
855 pm cdt sat oct 3 2026

sheboygan wi to pentwater mi north...

.rest of tonight...south winds 15 to 25 kt becoming southwest to
30 kt. slight chance of showers through early evening, then
chance of showers overnight. waves 4 to 6 ft occasionally to 8 ft
building to 5 to 8 ft occasionally to 10 ft. 
.sunday...west winds to 30 kt becoming northwest. slight chance
of showers in the morning. waves 5 to 8 ft occasionally to 10 ft
subsiding to 4 to 6 ft occasionally to 8 ft. 
.sunday night...northwest winds to 30 kt diminishing to 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft. 
.monday...northwest winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.monday night...southwest winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 3 ft. 
.tuesday...south winds to 30 kt increasing to gales to 35 kt.
waves 4 to 7 ft occasionally to 9 ft building to 8 to 11 ft
occasionally to 14 ft. 
.tuesday night...southwest gales to 35 kt. waves 8 to 11 ft
occasionally to 14 ft subsiding to 6 to 9 ft occasionally to
12 ft. 
.wednesday...west winds 15 to 25 kt. waves 4 to 6 ft occasionally
to 8 ft subsiding to 2 to 4 ft. 
.thursday...west winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft.  

$$

fzus63 kmqt 040202
glfls 
expires:202610040800;;493149

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat oct 3 2026

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

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

.synopsis...

high pressure of 30.3 inches centered over lake huron this afternoon 
shifts east to the mouth of the st. lawrence river by this evening. 
immediately behind, a 29.8 inch clipper approaching northern 
minnesota this afternoon skirts along lake superior's north shore 
tonight and tomorrow, sending elevated southerly winds across lake 
superior this evening, followed by elevated northwesterlies tomorrow 
behind the front. behind the clipper, 30.3 inch high pressure 
quickly returns to the northern plains on sunday and moves overhead 
on monday. after this high pressure ridging, another clipper low 
moves east over the canadian prairies before passing to the north of 
lake superior at 29.6 inches late tuesday and tuesday night. remnant 
troughing of 29.9 inches remains over lake superior through thursday 
prior to surface ridging moving in again on friday.




lsz162-040800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt sat oct 3 2026 /901 pm cdt sat oct 3 2026/

.rest of tonight...southwest winds 20 to 30 knots becoming west
15 to 25 knots after midnight, then becoming northwest 20 to
30 knots late. a chance of showers by midnight. waves 3 to 5 feet
occasionally to 7 feet subsiding to 2 to 4 feet. 
.sunday...northwest winds 20 to 30 knots backing west in the
afternoon, then becoming northwest 15 to 25 knots late. waves
subsiding to 1 to 3 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots. waves subsiding to calm to 2 feet. 
.monday...northwest winds 5 to 15 knots backing south by mid
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots veering south
after midnight. waves building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 1 to 3 feet. 
.tuesday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.thursday...west winds 10 to 20 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 040202
glfls 
expires:202610040800;;493150

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat oct 3 2026

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

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

.synopsis...

high pressure of 30.3 inches centered over lake huron this afternoon 
shifts east to the mouth of the st. lawrence river by this evening. 
immediately behind, a 29.8 inch clipper approaching northern 
minnesota this afternoon skirts along lake superior's north shore 
tonight and tomorrow, sending elevated southerly winds across lake 
superior this evening, followed by elevated northwesterlies tomorrow 
behind the front. behind the clipper, 30.3 inch high pressure 
quickly returns to the northern plains on sunday and moves overhead 
on monday. after this high pressure ridging, another clipper low 
moves east over the canadian prairies before passing to the north of 
lake superior at 29.6 inches late tuesday and tuesday night. remnant 
troughing of 29.9 inches remains over lake superior through thursday 
prior to surface ridging moving in again on friday.




lsz263-040800-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1001 pm edt sat oct 3 2026

.rest of tonight...south winds 15 to 25 knots veering west after
midnight, then becoming northwest 20 to 30 knots late. a chance
of showers by midnight. waves 3 to 6 feet occasionally to 8 feet.
.sunday...northwest winds 20 to 30 knots becoming west 15 to
25 knots late. waves 3 to 6 feet occasionally to 8 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots late. waves subsiding to 2 to 4 feet. 
.monday...northwest winds 5 to 15 knots backing southwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.monday night...south winds 5 to 15 knots increasing to 15 to
25 knots after midnight. waves building to 2 to 4 feet. 
.tuesday...south winds 20 to 30 knots veering southwest by mid
afternoon. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 
.tuesday night...west winds 15 to 25 knots. waves 2 to 4 feet. 
.wednesday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 
.thursday...west winds 10 to 20 knots veering northwest. waves
subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 040202
glfls 
expires:202610040800;;493151

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat oct 3 2026

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

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

.synopsis...

high pressure of 30.3 inches centered over lake huron this afternoon 
shifts east to the mouth of the st. lawrence river by this evening. 
immediately behind, a 29.8 inch clipper approaching northern 
minnesota this afternoon skirts along lake superior's north shore 
tonight and tomorrow, sending elevated southerly winds across lake 
superior this evening, followed by elevated northwesterlies tomorrow 
behind the front. behind the clipper, 30.3 inch high pressure 
quickly returns to the northern plains on sunday and moves overhead 
on monday. after this high pressure ridging, another clipper low 
moves east over the canadian prairies before passing to the north of 
lake superior at 29.6 inches late tuesday and tuesday night. remnant 
troughing of 29.9 inches remains over lake superior through thursday 
prior to surface ridging moving in again on friday.




lsz264-040800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt sat oct 3 2026

.rest of tonight...south winds 15 to 25 knots increasing to 20 to
30 knots after midnight, then veering northwest late. showers by
midnight, then a chance of showers after midnight. waves 3 to
5 feet occasionally to 7 feet building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday...northwest winds 20 to 30 knots. waves building to 4 to
8 feet occasionally to 10 feet. 
.sunday night...northwest winds 20 to 30 knots diminishing to
10 to 20 knots. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.monday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 1 to 3 feet. 
.tuesday...south winds 20 to 30 knots becoming southwest 15 to
25 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.tuesday night...west winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet. 
.wednesday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 
.thursday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 040202
glfls 
expires:202610040800;;493152

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat oct 3 2026

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

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

.synopsis...

high pressure of 30.3 inches centered over lake huron this afternoon 
shifts east to the mouth of the st. lawrence river by this evening. 
immediately behind, a 29.8 inch clipper approaching northern 
minnesota this afternoon skirts along lake superior's north shore 
tonight and tomorrow, sending elevated southerly winds across lake 
superior this evening, followed by elevated northwesterlies tomorrow 
behind the front. behind the clipper, 30.3 inch high pressure 
quickly returns to the northern plains on sunday and moves overhead 
on monday. after this high pressure ridging, another clipper low 
moves east over the canadian prairies before passing to the north of 
lake superior at 29.6 inches late tuesday and tuesday night. remnant 
troughing of 29.9 inches remains over lake superior through thursday 
prior to surface ridging moving in again on friday.




lsz265-040800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt sat oct 3 2026

...gale warning in effect from 8 am edt sunday through sunday
evening...

.rest of tonight...south gales to 35 knots veering west late.
showers by midnight, then a chance of showers after midnight.
waves 3 to 6 feet occasionally to 8 feet. 
.sunday...northwest gales to 35 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...northwest gales to 35 knots diminishing to 20 to
30 knots late. a slight chance of showers through midnight. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet. 
.monday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...south winds 5 to 15 knots increasing to 15 to
25 knots after midnight. waves building to 1 to 3 feet. 
.tuesday...south gales to 35 knots diminishing to 20 to 30 knots
by mid afternoon. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 1 to 3 feet. 
.tuesday night...west winds 20 to 30 knots increasing to gales to
35 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...west gales to 35 knots diminishing to 20 to
30 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 2 to 4 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

$$

fzus63 kmqt 040202
glfls 
expires:202610040800;;493153

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat oct 3 2026

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

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

.synopsis...

high pressure of 30.3 inches centered over lake huron this afternoon 
shifts east to the mouth of the st. lawrence river by this evening. 
immediately behind, a 29.8 inch clipper approaching northern 
minnesota this afternoon skirts along lake superior's north shore 
tonight and tomorrow, sending elevated southerly winds across lake 
superior this evening, followed by elevated northwesterlies tomorrow 
behind the front. behind the clipper, 30.3 inch high pressure 
quickly returns to the northern plains on sunday and moves overhead 
on monday. after this high pressure ridging, another clipper low 
moves east over the canadian prairies before passing to the north of 
lake superior at 29.6 inches late tuesday and tuesday night. remnant 
troughing of 29.9 inches remains over lake superior through thursday 
prior to surface ridging moving in again on friday.




lsz266-040800-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1001 pm edt sat oct 3 2026

...gale warning in effect from 2 am edt sunday through sunday
evening...

.rest of tonight...south gales to 35 knots veering west late.
showers by midnight, then a chance of showers after midnight.
waves 4 to 8 feet occasionally to 10 feet, then subsiding to 4 to
7 feet occasionally to 9 feet. 
.sunday...northwest gales to 40 knots. a slight chance of
showers. waves building to 7 to 10 feet occasionally to 13 feet. 
.sunday night...northwest gales to 35 knots diminishing to 20 to
30 knots after midnight. a slight chance of showers. waves
building to 8 to 11 feet occasionally to 14 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.monday...northwest winds 15 to 25 knots. waves subsiding to 1 to
3 feet. 
.monday night...northwest winds 5 to 15 knots becoming south
15 to 25 knots after midnight. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.tuesday...south winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...southwest winds 20 to 30 knots veering west
after midnight. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 5 feet occasionally to 7 feet. 
.wednesday...west winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 040202
glfls 
expires:202610040800;;493154

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sat oct 3 2026

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

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

.synopsis...

high pressure of 30.3 inches centered over lake huron this afternoon 
shifts east to the mouth of the st. lawrence river by this evening. 
immediately behind, a 29.8 inch clipper approaching northern 
minnesota this afternoon skirts along lake superior's north shore 
tonight and tomorrow, sending elevated southerly winds across lake 
superior this evening, followed by elevated northwesterlies tomorrow 
behind the front. behind the clipper, 30.3 inch high pressure 
quickly returns to the northern plains on sunday and moves overhead 
on monday. after this high pressure ridging, another clipper low 
moves east over the canadian prairies before passing to the north of 
lake superior at 29.6 inches late tuesday and tuesday night. remnant 
troughing of 29.9 inches remains over lake superior through thursday 
prior to surface ridging moving in again on friday.




lsz267-040800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt sat oct 3 2026

...gale warning in effect from 8 am edt sunday through sunday
evening...

.rest of tonight...south winds 20 to 30 knots increasing to gales
to 35 knots after midnight, then veering southwest late. showers.
waves 3 to 5 feet occasionally to 7 feet building to 4 to 7 feet
occasionally to 9 feet. 
.sunday...northwest gales to 40 knots. a chance of showers. waves
building to 7 to 10 feet occasionally to 13 feet. 
.sunday night...northwest gales to 35 knots becoming north 20 to
30 knots late. a chance of showers. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.monday...northwest winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.monday night...northwest winds 5 to 15 knots backing south after
midnight. waves subsiding to calm to 2 feet. 
.tuesday...south winds 20 to 30 knots. waves building to 3 to
6 feet occasionally to 8 feet. 
.tuesday night...southwest gales to 35 knots becoming west 20 to
30 knots after midnight. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.wednesday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.thursday...west winds 15 to 25 knots. a chance of showers. waves
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
1 to 3 feet. 

$$