fzus61 kbuf 040803
glflo 
expires:202610041500;;507290

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun oct 4 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 29.7 inch low over northwest ontario today will deepen 
to 29.4 inches as it slides just south of james bay over central 
quebec tonight, 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.


loz062-041500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt sun oct 4 2026

.today...southeast winds 5 to 10 knots becoming southwest. waves
1 to 3 feet. 
.tonight...southwest winds 10 to 15 knots becoming northwest
15 to 20 knots. waves 1 to 2 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 diminishing to
10 to 15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.tuesday...northwest winds 5 to 15 knots becoming southwest 15 to
20 knots. waves 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 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 

$$

fzus61 kbuf 040803
glflo 
expires:202610041500;;507291

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun oct 4 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 29.7 inch low over northwest ontario today will deepen 
to 29.4 inches as it slides just south of james bay over central 
quebec tonight, 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>065-041500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt sun oct 4 2026

.today...southeast winds 15 to 20 knots becoming south. waves
2 to 4 feet. 
.tonight...southwest winds 10 to 15 knots becoming northwest and
increasing to 15 to 25 knots. a chance of showers from late
evening on. waves 1 to 3 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.monday...northwest winds to 30 knots. waves 5 to 8 feet building
to 6 to 10 feet. waves occasionally around 13 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 building to 2 to 4 feet. 
.wednesday...south winds 15 to 25 knots becoming west. a chance
of showers. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.thursday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers. waves 2 to 4 feet building to 3 to
5 feet, then subsiding to 1 to 3 feet. 

$$

fzus61 kcle 040800
glfle 
expires:202610041415;;507175

open lake forecast for lake erie
national weather service cleveland oh
400 am edt sun oct 4 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 today before high pressure 30.40
builds over the lake monday and tuesday. the high will drift east
wednesday, allowing a cold front to approach from the west through
thursday.


lez164>166-041415-
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-
400 am edt sun oct 4 2026

.today...southwest winds 5 to 15 knots. waves 1 to 2 feet. 
.tonight...southwest 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 1 to 3 feet. 
.monday night...northwest winds 5 to 15 knots becoming west
10 knots or less. waves 1 to 3 feet subsiding to 1 foot or less. 
.tuesday...southwest winds 5 to 10 knots increasing to 15 to
25 knots. waves 1 foot or less building to 2 to 4 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west. waves
3 to 5 feet subsiding to 1 to 3 feet. 
.thursday...west winds 10 to 15 knots becoming northwest. waves
1 to 3 feet. 

$$

fzus61 kcle 040800
glfle 
expires:202610041415;;507176

open lake forecast for lake erie
national weather service cleveland oh
400 am edt sun oct 4 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 today before high pressure 30.40
builds over the lake monday and tuesday. the high will drift east
wednesday, allowing a cold front to approach from the west through
thursday.


lez061-167>169-041415-
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-
400 am edt sun oct 4 2026

.today...south winds 10 to 15 knots becoming west. waves 2 feet
or less. 
.tonight...southwest winds 15 to 20 knots becoming northwest. a
slight chance of showers. waves 1 to 3 feet building to 3 to
5 feet. 
.monday...northwest winds 15 to 20 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 1 to 3 feet subsiding to 1 foot or less. 
.tuesday...west winds 5 to 10 knots becoming southwest and
increasing to 15 to 25 knots. waves 1 foot or less building to
2 to 4 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. waves 3 to 6 feet subsiding to
2 to 4 feet. 
.thursday...west winds 10 to 15 knots becoming northwest. waves
1 to 3 feet. 

$$

fzus61 kcle 040800
glfle 
expires:202610041415;;507174

open lake forecast for lake erie
national weather service cleveland oh
400 am edt sun oct 4 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 today before high pressure 30.40
builds over the lake monday and tuesday. the high will drift east
wednesday, allowing a cold front to approach from the west through
thursday.


lez162-163-041415-
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-
400 am edt sun oct 4 2026

.today...southwest winds 5 to 10 knots becoming west. waves
1 foot or less. 
.tonight...west winds 10 to 15 knots becoming northwest. waves
1 foot or less building to 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots. waves 2 feet or less. 
.monday night...northwest winds 10 knots or less becoming west.
waves 1 foot or less. 
.tuesday...southwest winds 5 to 15 knots 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 1 to 3 feet. 
.thursday...west winds around 10 knots. waves 1 foot or less. 

$$

fzus63 kdtx 040803
glfsc 
expires:202610041615;;507319

lake st clair forecast
national weather service detroit/pontiac mi
403 am edt sun oct 4 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.


lcz460-041615-
lake st clair-
403 am edt sun oct 4 2026

.today...light and variable winds becoming southwest 5 to 10 knots
in the late morning and afternoon. partly sunny in the morning then
clearing. waves 2 feet or less.
.tonight...west winds 10 to 15 knots becoming northwest 15 to 20
knots by midnight...then diminishing to 10 to 15 knots early in the
morning. mostly clear. waves 2 feet or less.
.monday...northwest winds 10 to 15 knots. sunny. waves 2 feet or
less.
.monday night...northwest winds 5 to 10 knots early in the evening
becoming light and variable. mostly clear. waves 2 feet or less.
.tuesday...northwest winds 5 to 10 knots becoming south 10 to 15
knots in the afternoon...then increasing to 15 to 20 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...northwest winds 10 to 15 knots. mostly clear. waves 2
feet or less.

$$

fzus63 kdtx 040803
glflh 
expires:202610041615;;507315

open lake forecast for lake huron
national weather service detroit/pontiac mi
403 am edt sun oct 4 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.


lhz361-362-041615-
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-
403 am edt sun oct 4 2026

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

.today...south winds 20 to 25 knots becoming west 15 to 20 knots
in the afternoon. gusts to 30 knots. a chance of showers in the
morning. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tonight...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 decreasing to 15 to
20 knots early in the afternoon. gusts to 35 knot gales. 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...south winds 5 to 10 knots increasing to 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...west winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots by midnight. 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 040803
glflh 
expires:202610041615;;507316

open lake forecast for lake huron
national weather service detroit/pontiac mi
403 am edt sun oct 4 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.


lhz363-041615-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
403 am edt sun oct 4 2026

.today...southwest winds 15 to 20 knots with gusts to around
30 knots veering to the west late in the afternoon. a chance of
rain in the morning. waves 3 to 5 feet. 
.tonight...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 15 to 20 knots in the late morning and
afternoon. waves 6 to 9 feet. waves occasionally around 12 feet. 
.monday night...northwest winds 10 to 15 knots  becoming light
and variable. waves 3 to 5 feet. 
.tuesday...light and variable winds becoming southwest 10 to
15 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 15 to 20 knots becoming west 10 to
15 knots. 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 kdtx 040803
glflh 
expires:202610041615;;507317

open lake forecast for lake huron
national weather service detroit/pontiac mi
403 am edt sun oct 4 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>464-041615-
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-
403 am edt sun oct 4 2026

.today...south winds 10 to 15 knots veering to the west late in
the afternoon. a chance of showers in the morning. waves 1 to
3 feet. 
.tonight...northwest winds 15 to 20 knots increasing to 20 to
25 knots early in the morning. waves 2 to 4 feet building to 5 to
7 feet in the late evening and overnight. waves occasionally
around 10 feet. 
.monday...northwest winds 20 to 25 knots decreasing to 15 to
20 knots in the late morning and afternoon. 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 becoming southwest 10 to
15 knots late in the morning...then becoming south 15 to 20 knots
with gusts to around 30 knots late in the afternoon increasing to
20 to 25 knots with gusts to around 30 knots late in the evening.
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 kmkx 040801
glflm 
expires:202610041530;;507256

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
301 am cdt sun oct 4 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 north of lake superior will 
deepen to 29.4 inches as it approaches james bay late this 
afternoon. a cold front will sweep across lake michigan sunday 
morning turning the breezy southwest winds to northwesterly by mid
morning. breezy northwest winds will be at there strongest across
far northern lake michigan and remain just below gale force. there
will be a potential for waterspouts across the far northern edge
of the lake this evening into tonight behind the cold front. 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.


lmz080-669-671-673-675-777-779-870-872-874-876-878-041530-
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-
301 am cdt sun oct 4 2026

sheboygan wi to pentwater mi south...

.today...southwest winds 15 to 25 kt veering to northwest 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.tonight...northwest winds 10 to 20 kt becoming north. waves 4 to
6 ft occasionally to 8 ft. 
.monday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 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 increasing to gales to 35 kt.
waves 5 to 8 ft occasionally to 10 ft building to 8 to 11 ft
occasionally to 14 ft. 
.tuesday night...southwest winds to 30 kt becoming west. 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 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.thursday...northwest winds 10 to 20 kt becoming west. waves 2 to
4 ft.  

$$

fzus63 kmkx 040801
glflm 
expires:202610041530;;507255

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
301 am cdt sun oct 4 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 north of lake superior will 
deepen to 29.4 inches as it approaches james bay late this 
afternoon. a cold front will sweep across lake michigan sunday 
morning turning the breezy southwest winds to northwesterly by mid
morning. breezy northwest winds will be at there strongest across
far northern lake michigan and remain just below gale force. there
will be a potential for waterspouts across the far northern edge
of the lake this evening into tonight behind the cold front. 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.


lmz261-362-364-366-563-565-567-868-041530-
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-
301 am cdt sun oct 4 2026

sheboygan wi to pentwater mi north...

.today...west winds to 30 kt becoming northwest. waves 6 to 9 ft
occasionally to 12 ft subsiding to 3 to 5 ft. 
.tonight...northwest winds to 30 kt diminishing to 15 to 25 kt.
slight chance of waterspouts. 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 40 kt in
the afternoon. waves 5 to 8 ft occasionally to 10 ft building to
8 to 11 ft occasionally to 14 ft. 
.tuesday night...southwest gales to 35 kt becoming west. waves
8 to 11 ft occasionally to 14 ft subsiding to 5 to 8 ft
occasionally to 10 ft. 
.wednesday...west winds 15 to 25 kt increasing to 30 kt. waves
3 to 5 ft subsiding to 2 to 4 ft. 
.thursday...northwest winds 10 to 20 kt becoming west 15 to
25 kt. waves 1 to 3 ft.  

$$

fzus63 kmqt 040811 cca
glfls 
expires:202610042000;;508348

open lake forecast for lake superior...corrected
national weather service marquette mi
411 am edt sun oct 4 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...

a 29.8 inch low lifting off of lake superior's north shore this 
morning is progressively being replaced by 30.3 inch high pressure 
over the northern plains the rest of today through monday. after 
this high pressure ridging moves through late on monday, another 
clipper low phases with a low from northern canada that digs 
southeast towards the lake on tuesday. this phased low is expected 
to bring 29.6 inch troughing to the lake tuesday through tuesday 
night. remnant troughing of 29.9 inches remains over lake superior 
through thursday prior to surface ridging of 30.2 inches moving in 
again on friday.


lsz162-042000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
411 am edt sun oct 4 2026 /311 am cdt sun oct 4 2026/

.early this morning...northwest winds 20 to 30 knots. waves 3 to
5 feet occasionally to 7 feet. 
.today...northwest winds 15 to 25 knots backing west late. waves
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
1 to 3 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. waves subsiding to calm to 2 feet. 
.monday...north winds 5 to 15 knots veering south in the
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 veering west by mid
afternoon. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 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. waves calm to 2 feet. 

$$

fzus63 kmqt 040811 cca
glfls 
expires:202610042000;;508349

open lake forecast for lake superior...corrected
national weather service marquette mi
411 am edt sun oct 4 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...

a 29.8 inch low lifting off of lake superior's north shore this 
morning is progressively being replaced by 30.3 inch high pressure 
over the northern plains the rest of today through monday. after 
this high pressure ridging moves through late on monday, another 
clipper low phases with a low from northern canada that digs 
southeast towards the lake on tuesday. this phased low is expected 
to bring 29.6 inch troughing to the lake tuesday through tuesday 
night. remnant troughing of 29.9 inches remains over lake superior 
through thursday prior to surface ridging of 30.2 inches moving in 
again on friday.


lsz263-042000-
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-
411 am edt sun oct 4 2026

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

$$

fzus63 kmqt 040811 cca
glfls 
expires:202610042000;;508350

open lake forecast for lake superior...corrected
national weather service marquette mi
411 am edt sun oct 4 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...

a 29.8 inch low lifting off of lake superior's north shore this 
morning is progressively being replaced by 30.3 inch high pressure 
over the northern plains the rest of today through monday. after 
this high pressure ridging moves through late on monday, another 
clipper low phases with a low from northern canada that digs 
southeast towards the lake on tuesday. this phased low is expected 
to bring 29.6 inch troughing to the lake tuesday through tuesday 
night. remnant troughing of 29.9 inches remains over lake superior 
through thursday prior to surface ridging of 30.2 inches moving in 
again on friday.


lsz264-042000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
411 am edt sun oct 4 2026

...gale warning in effect from 8 am this morning to 2 pm edt this
afternoon...

.early this morning...northwest winds 20 to 30 knots. waves 4 to
8 feet occasionally to 10 feet. 
.today...northwest gales to 35 knots diminishing to 20 to
30 knots late. waves building to 7 to 10 feet occasionally to
13 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. 
.tonight...northwest winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. sprinkles through midnight. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.monday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the 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 15 to 25 knots veering southwest by mid
afternoon. waves building to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...west winds 15 to 25 knots increasing to 20 to
30 knots after midnight. waves subsiding to 2 to 4 feet, then
building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...west winds 20 to 30 knots becoming northwest 15 to
25 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 1 to 3 feet. 
.thursday...northwest winds 10 to 20 knots backing west. waves
subsiding to calm to 2 feet. 

$$

fzus63 kmqt 040811 cca
glfls 
expires:202610042000;;508351

open lake forecast for lake superior...corrected
national weather service marquette mi
411 am edt sun oct 4 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...

a 29.8 inch low lifting off of lake superior's north shore this 
morning is progressively being replaced by 30.3 inch high pressure 
over the northern plains the rest of today through monday. after 
this high pressure ridging moves through late on monday, another 
clipper low phases with a low from northern canada that digs 
southeast towards the lake on tuesday. this phased low is expected 
to bring 29.6 inch troughing to the lake tuesday through tuesday 
night. remnant troughing of 29.9 inches remains over lake superior 
through thursday prior to surface ridging of 30.2 inches moving in 
again on friday.


lsz265-042000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
411 am edt sun oct 4 2026

...gale warning in effect from 8 am edt this morning through this
evening...

.early this morning...west winds to 30 knots with a few gale force
gusts up to 35 knots possible. waves 3 to 6 feet occasionally to 8 
feet building to 4 to 7 feet occasionally to 9 feet. 
.today...northwest gales to 35 knots. waves building to 5 to 8 feet 
occasionally to 10 feet. 
.tonight...northwest gales to 35 knots diminishing to 20 to
30 knots late. sprinkles. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.monday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots becoming south
15 to 25 knots after midnight. waves building to 2 to 4 feet. 
.tuesday...south winds 20 to 30 knots becoming southwest 15 to
25 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. waves building to
4 to 7 feet occasionally to 9 feet. 
.wednesday...west gales to 35 knots becoming northwest 20 to
30 knots. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 2 to 4 feet. 
.thursday...northwest winds 20 to 30 knots becoming west 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

$$

fzus63 kmqt 040811 cca
glfls 
expires:202610042000;;508352

open lake forecast for lake superior...corrected
national weather service marquette mi
411 am edt sun oct 4 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...

a 29.8 inch low lifting off of lake superior's north shore this 
morning is progressively being replaced by 30.3 inch high pressure 
over the northern plains the rest of today through monday. after 
this high pressure ridging moves through late on monday, another 
clipper low phases with a low from northern canada that digs 
southeast towards the lake on tuesday. this phased low is expected 
to bring 29.6 inch troughing to the lake tuesday through tuesday 
night. remnant troughing of 29.9 inches remains over lake superior 
through thursday prior to surface ridging of 30.2 inches moving in 
again on friday.


lsz266-042000-
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-
411 am edt sun oct 4 2026

...gale warning in effect through this evening...

.early this morning...west winds 20 to 30 knots. a slight chance
of showers. waves 5 to 8 feet occasionally to 10 feet. 
.today...northwest gales to 35 knots. sprinkles by mid afternoon. 
waves building to 8 to 12 feet occasionally to 15 feet. 
.tonight...northwest gales to 35 knots diminishing to 20 to
30 knots late. a chance of showers. waves subsiding to 6 to
9 feet occasionally to 11 feet. 
.monday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. a chance of showers through early afternoon. waves
subsiding to 2 to 4 feet. 
.monday night...southeast winds 5 to 15 knots becoming south
15 to 25 knots after midnight. waves subsiding to calm to 2 feet,
then building to 2 to 4 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...west winds 15 to 25 knots increasing to 20 to
30 knots after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet, then building to 4 to 7 feet occasionally
to 9 feet. 
.wednesday...west winds 20 to 30 knots veering northwest. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 3 to 5 feet occasionally to 7 feet. 
.thursday...northwest winds 15 to 25 knots becoming west 10 to
20 knots. a chance of showers. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 040811 cca
glfls 
expires:202610042000;;508353

open lake forecast for lake superior...corrected
national weather service marquette mi
411 am edt sun oct 4 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...

a 29.8 inch low lifting off of lake superior's north shore this 
morning is progressively being replaced by 30.3 inch high pressure 
over the northern plains the rest of today through monday. after 
this high pressure ridging moves through late on monday, another 
clipper low phases with a low from northern canada that digs 
southeast towards the lake on tuesday. this phased low is expected 
to bring 29.6 inch troughing to the lake tuesday through tuesday 
night. remnant troughing of 29.9 inches remains over lake superior 
through thursday prior to surface ridging of 30.2 inches moving in 
again on friday.


lsz267-042000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
411 am edt sun oct 4 2026

...gale warning in effect from 8 am edt this morning through this
evening...

.early this morning...southwest winds to 30 knots with a few gale
force gusts up to 35 knots possible. a slight chance of showers. 
waves 4 to 7 feet occasionally to 9 feet.
.today...west gales to 35 knots becoming northwest in the afternoon.
a chance of showers. waves building to 9 to 12 feet occasionally to 
15 feet. 
.tonight...northwest gales to 35 knots diminishing to 20 to 30 knots
late. a chance of showers. waves subsiding to 6 to 9 feet 
occasionally to 11 feet. 
.monday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. a chance of showers through early afternoon. waves
subsiding to 2 to 4 feet. 
.monday night...northwest winds 5 to 15 knots becoming south
10 to 20 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...west winds 20 to 30 knots. waves subsiding to
3 to 5 feet occasionally to 7 feet, then building to 4 to 7 feet
occasionally to 9 feet. 
.wednesday...west gales to 35 knots becoming northwest 20 to
30 knots. a chance of showers. waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.thursday...northwest winds 15 to 25 knots becoming west 10 to
20 knots. a chance of showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 1 to 3 feet. 

$$