fzus61 kbuf 050803
glflo 
expires:202610051500;;561976

open lake forecast for lake ontario
national weather service buffalo ny
403 am edt mon oct 5 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 30.2 inch high over the upper midwest will build 
across the great lakes through tuesday, before sliding into the 
northeast wednesday. a cold front will then pass across the lake 
thursday. a 30.1 inch surface high will then ridge north across the 
lake friday.


loz062-051500-
lake ontario open waters from the niagara river to hamlin beach-
403 am edt mon oct 5 2026

.today...west winds 20 to 25 knots becoming northwest. waves 5 to
8 feet. waves occasionally around 10 feet. 
.tonight...northwest winds 15 to 25 knots diminishing to 10 to
15 knots. waves 4 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 9 feet. 
.tuesday...northwest winds 5 to 10 knots becoming west. waves
2 feet or less. 
.tuesday night...southwest winds 10 to 15 knots increasing to
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. 
.friday...west winds 10 to 15 knots. waves 1 to 3 feet. 

$$

fzus61 kbuf 050803
glflo 
expires:202610051500;;561977

open lake forecast for lake ontario
national weather service buffalo ny
403 am edt mon oct 5 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 30.2 inch high over the upper midwest will build 
across the great lakes through tuesday, before sliding into the 
northeast wednesday. a cold front will then pass across the lake 
thursday. a 30.1 inch surface high will then ridge north across the 
lake friday.


loz063>065-051500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 am edt mon oct 5 2026

.today...northwest winds to 30 knots. waves 5 to 8 feet building
to 7 to 10 feet. waves occasionally around 13 feet. 
.tonight...northwest winds 15 to 25 knots. waves 5 to 9 feet
subsiding to 3 to 5 feet. waves occasionally around 11 feet. 
.tuesday...northwest winds 5 to 15 knots becoming west. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday night...west 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 and
diminishing to 10 to 15 knots. a chance of showers wednesday
night. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.thursday...west winds 15 to 20 knots. a chance of showers. waves
2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to
4 feet. 
.friday...west winds 10 to 15 knots. a chance of showers. waves
2 to 4 feet. 

$$

fzus61 kcle 050741
glfle 
expires:202610051415;;561500

open lake forecast for lake erie
national weather service cleveland oh
341 am edt mon oct 5 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...
high pressure 30.20 inches will build over lake erie today before
drifting east of the area by wednesday. a cold front will 
approach from the west wednesday and move east across the lake 
thursday with high pressure 30.10 inches returning friday.


lez164-165-051415-
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-
341 am edt mon oct 5 2026

.today...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...north winds 5 to 15 knots becoming northwest less than
10 knots. waves 2 feet or less. 
.tuesday...southwest winds 5 to 10 knots. waves 1 foot or less. 
.tuesday night...south winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. waves 1 foot or less building to
3 to 5 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. 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. 
.friday...west winds 5 to 10 knots becoming northwest. waves
2 feet or less. 

$$

fzus61 kcle 050741
glfle 
expires:202610051415;;561501

open lake forecast for lake erie
national weather service cleveland oh
341 am edt mon oct 5 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...
high pressure 30.20 inches will build over lake erie today before
drifting east of the area by wednesday. a cold front will 
approach from the west wednesday and move east across the lake 
thursday with high pressure 30.10 inches returning friday.


lez166>168-051415-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
341 am edt mon oct 5 2026

.today...northwest winds 15 to 20 knots. waves 2 to 4 feet. 
.tonight...northwest winds 15 to 20 knots becoming north 5 to
15 knots. waves 2 to 4 feet subsiding to 1 foot or less. 
.tuesday...northwest winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.tuesday night...southwest winds 5 to 10 knots increasing to
15 to 25 knots. waves 1 foot or less building to 3 to 6 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west. waves
4 to 7 feet subsiding to 2 to 3 feet. waves occasionally around
9 feet. 
.thursday...west winds 10 to 15 knots becoming northwest. waves
2 to 3 feet. 
.friday...west winds 5 to 15 knots becoming northwest. waves 1 to
3 feet. 

$$

fzus61 kcle 050741
glfle 
expires:202610051415;;561499

open lake forecast for lake erie
national weather service cleveland oh
341 am edt mon oct 5 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...
high pressure 30.20 inches will build over lake erie today before
drifting east of the area by wednesday. a cold front will 
approach from the west wednesday and move east across the lake 
thursday with high pressure 30.10 inches returning friday.


lez162-163-051415-
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-
341 am edt mon oct 5 2026

.today...northwest winds 10 to 15 knots. waves 1 to 2 feet. 
.tonight...northwest winds 10 knots or less becoming north. waves
1 foot or less. 
.tuesday...northwest winds 10 knots or less becoming south. waves
1 foot or less. 
.tuesday night...south 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 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...west winds 5 to 15 knots. waves 1 to 2 feet. 
.friday...west winds 5 to 10 knots becoming north. waves 2 feet
or less. 

$$

fzus61 kcle 050741
glfle 
expires:202610051415;;561502

open lake forecast for lake erie
national weather service cleveland oh
341 am edt mon oct 5 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...
high pressure 30.20 inches will build over lake erie today before
drifting east of the area by wednesday. a cold front will 
approach from the west wednesday and move east across the lake 
thursday with high pressure 30.10 inches returning friday.


lez061-169-051415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
341 am edt mon oct 5 2026

.today...northwest winds 15 to 20 knots. waves 2 to 4 feet. 
.tonight...northwest winds 15 to 20 knots becoming north 5 to
15 knots. waves 2 to 4 feet subsiding to 1 foot or less. 
.tuesday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.tuesday night...southwest winds less than 10 knots increasing to
15 to 20 knots. waves 2 feet or less building to 3 to 5 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 3 to 6 feet subsiding to 2 to 3 feet. 
.thursday...west winds 5 to 15 knots becoming northwest. waves
1 to 3 feet. 
.friday...west winds 5 to 15 knots. waves 1 to 3 feet. 

$$

fzus63 kdtx 050754
glfsc 
expires:202610051600;;561751

lake st clair forecast
national weather service detroit/pontiac mi
354 am edt mon oct 5 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...low pressure, 29.50 inches, south of james bay will
track into quebec tonight. this low is driving a cold front
through the region, with west/northwest flow expected tonight
into monday. speeds will increase to around 25 knots this
evening, with gale force gusts to 35 knots still possible. high
pressure, 30.20 inches, will move into the region monday
afternoon, bringing much lighter wind conditions. the next system
to affect the region will be later tuesday with stronger
southwest winds.


lcz460-051600-
lake st clair-
354 am edt mon oct 5 2026

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

$$

fzus63 kdtx 050754
glflh 
expires:202610051600;;561747

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 am edt mon oct 5 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...low pressure, 29.50 inches, south of james bay will
track into quebec tonight. this low is driving a cold front
through the region, with west/northwest flow expected tonight
into monday. speeds will increase to around 25 knots this
evening, with gale force gusts to 35 knots still possible. high
pressure, 30.20 inches, will move into the region monday
afternoon, bringing much lighter wind conditions. the next system
to affect the region will be later tuesday with stronger
southwest winds.


lhz361-362-051600-
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-
354 am edt mon oct 5 2026

.today...northwest winds 20 to 25 knots with gusts to around
30 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.tonight...northwest winds 15 to 20 knots early in the evening
decreasing to 10 to 15 knots...then decreasing to 5 to 10 knots
after midnight becoming light and variable. waves 4 to 6 feet
subsiding to 1 to 3 feet early in the morning. 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 1 to 3 feet building to 4 to
6 feet early in the afternoon. waves occasionally around 8 feet. 
.tuesday night...south winds 20 to 25 knots becoming southwest
15 to 20 knots in the late evening and overnight. gusts to
30 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday...southwest winds 10 to 15 knots veering to the west
late in the afternoon. waves 3 to 5 feet subsiding to 2 to 4 feet
late in the evening. 
.thursday...west winds 15 to 20 knots with gusts to around
30 knots decreasing to 5 to 10 knots by midnight. waves 3 to
5 feet. 
.friday...west winds 10 to 15 knots decreasing to 5 to 10 knots
by midnight. waves 1 to 3 feet building to 2 to 4 feet . 


$$

fzus63 kdtx 050754
glflh 
expires:202610051600;;561748

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 am edt mon oct 5 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...low pressure, 29.50 inches, south of james bay will
track into quebec tonight. this low is driving a cold front
through the region, with west/northwest flow expected tonight
into monday. speeds will increase to around 25 knots this
evening, with gale force gusts to 35 knots still possible. high
pressure, 30.20 inches, will move into the region monday
afternoon, bringing much lighter wind conditions. the next system
to affect the region will be later tuesday with stronger
southwest winds.


lhz363-051600-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
354 am edt mon oct 5 2026

.today...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the afternoon. waves
6 to 9 feet. waves occasionally around 12 feet. 
.tonight...northwest winds 15 to 20 knots becoming light and
variable. waves 4 to 6 feet subsiding to 1 to 3 feet early in the
morning. waves occasionally around 8 feet. 
.tuesday...light and variable winds becoming south 5 to 10 knots
in the late morning and early afternoon...then increasing to
10 to 15 knots early in the afternoon. waves 1 to 3 feet building
to 2 to 4 feet early in the afternoon. 
.tuesday night...south winds 15 to 20 knots becoming southwest
20 to 25 knots in the late evening and overnight. gusts to
30 knots. waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 5 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 10 feet. 
.thursday...west winds 15 to 20 knots decreasing to 10 to
15 knots. waves 2 to 4 feet. 
.friday...west winds 10 to 15 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 050754
glflh 
expires:202610051600;;561749

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 am edt mon oct 5 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...low pressure, 29.50 inches, south of james bay will
track into quebec tonight. this low is driving a cold front
through the region, with west/northwest flow expected tonight
into monday. speeds will increase to around 25 knots this
evening, with gale force gusts to 35 knots still possible. high
pressure, 30.20 inches, will move into the region monday
afternoon, bringing much lighter wind conditions. the next system
to affect the region will be later tuesday with stronger
southwest winds.


lhz462>464-051600-
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-
354 am edt mon oct 5 2026

.today...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the afternoon. waves
6 to 9 feet. waves occasionally around 12 feet. 
.tonight...northwest winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 4 to 6 feet subsiding to 2 to
4 feet early in the morning. waves occasionally around 8 feet. 
.tuesday...west winds 5 to 10 knots backing to the southwest in
the late morning and early afternoon...then becoming south 10 to
15 knots early in the afternoon. waves 1 to 3 feet. 
.tuesday night...south winds 15 to 20 knots becoming southwest
20 to 25 knots in the late evening and overnight. waves 4 to
6 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet late in the
afternoon. waves occasionally around 8 feet. 
.thursday...west winds 10 to 15 knots. waves 1 to 3 feet. 
.friday...west winds 10 to 15 knots. waves 1 to 3 feet. 


$$

fzus63 kmkx 050740
glflm 
expires:202610051545;;561472

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
240 am cdt mon oct 5 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...

northwest winds will gradually decrease this morning as high 
pressure of 30.2 inches enters from the west. a few waterspouts 
remain possible across the far northern edge of the lake early
this morning.

low pressure of 29.4 inches will build toward the hudson bay 
tuesday through thursday. ahead of this low, south southwest 
winds will increase tuesday afternoon through wednesday and 
become gusty. there remains a risk for gusts to approach gales, 
particularly over the northern half of the open waters, and will
continue to be monitored for possible headlines. the low will 
pull a cold front across the waters wednesday night into 
thursday, delivering scattered showers and shifting winds to 
the west northwest.


lmz080-669-671-673-675-777-779-870-872-874-876-878-051545-
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-
240 am cdt mon oct 5 2026

sheboygan wi to pentwater mi south...

.today...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tonight...northeast winds 5 to 10 kt becoming east late in the
evening, then becoming southeast 10 to 15 kt after midnight
becoming south 10 to 20 kt late. waves 1 to 3 ft. 
.tuesday...south winds 15 to 25 kt increasing to gales to 35 kt.
waves 3 to 5 ft building to 7 to 10 ft occasionally to 13 ft. 
.tuesday night...southwest gales to 35 kt becoming west 15 to
25 kt overnight. waves 7 to 10 ft occasionally to 13 ft. 
.wednesday...west winds 10 to 20 kt. waves 4 to 6 ft occasionally
to 8 ft subsiding to 2 to 4 ft. 
.wednesday night...west winds 10 to 20 kt becoming northwest.
waves 2 to 4 ft building to 3 to 5 ft. 
.thursday...northwest winds 10 to 20 kt becoming west. waves 3 to
5 ft. 
.friday...west winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 050740
glflm 
expires:202610051545;;561471

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
240 am cdt mon oct 5 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...

northwest winds will gradually decrease this morning as high 
pressure of 30.2 inches enters from the west. a few waterspouts 
remain possible across the far northern edge of the lake early
this morning.

low pressure of 29.4 inches will build toward the hudson bay 
tuesday through thursday. ahead of this low, south southwest 
winds will increase tuesday afternoon through wednesday and 
become gusty. there remains a risk for gusts to approach gales, 
particularly over the northern half of the open waters, and will
continue to be monitored for possible headlines. the low will 
pull a cold front across the waters wednesday night into 
thursday, delivering scattered showers and shifting winds to 
the west northwest.


lmz261-362-364-366-563-565-567-868-051545-
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-
240 am cdt mon oct 5 2026

sheboygan wi to pentwater mi north...

...gale watch in effect from tuesday afternoon through tuesday
evening...

.today...northwest winds 15 to 25 kt becoming north 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.tonight...northeast winds 10 to 15 kt veering to south 10 to
20 kt. chance of showers overnight. waves 1 to 2 ft building to
2 to 4 ft. 
.tuesday...south winds 15 to 25 kt increasing to gales to 40 kt.
chance of showers. waves 4 to 6 ft occasionally to 8 ft building
to 8 to 12 ft occasionally to 16 ft. 
.tuesday night...southwest gales to 40 kt becoming west to 30 kt
overnight. waves 8 to 12 ft occasionally to 16 ft subsiding to
5 to 8 ft occasionally to 10 ft. 
.wednesday...northwest winds 15 to 25 kt becoming west. waves
3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday night...west winds 10 to 20 kt becoming northwest.
waves 2 to 4 ft. 
.thursday...northwest winds 15 to 25 kt becoming west. waves 2 to
4 ft. 
.friday...west winds 10 to 20 kt. waves 1 to 3 ft.  

$$

fzus63 kmqt 050802
glfls 
expires:202610052000;;561950

open lake forecast for lake superior
national weather service marquette mi
402 am edt mon oct 5 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...

30.3 inch high pressure over lake winnipeg early this morning 
continues east into the great lakes this afternoon. behind this, a 
29.5 inch low then drops southeast out of northern canada, reaching 
northern ontario at 29.5 inches by tuesday evening. this brings 29.6 
inch troughing over lake superior late on tuesday, weakening to 29.7 
inches through wednesday. high pressure builds back in from the 
canadian prairies and northern plains late in the week, resulting in 
30.1 inch ridging over lake superior late thursday into friday.




lsz162-052000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
402 am edt mon oct 5 2026 /302 am cdt mon oct 5 2026/

.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...north winds 5 to 15 knots veering south in the
afternoon. waves calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots veering south late. a
chance of showers. waves building to 1 to 3 feet. 
.tuesday...south winds 10 to 20 knots becoming southwest 15 to
25 knots in the afternoon, then veering west late. waves building
to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.tuesday night...west winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.wednesday...west winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 1 to 3 feet. 
.wednesday night...west winds 10 to 20 knots. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.thursday...west winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots becoming east 10 to 20 knots.
waves calm to 2 feet. 

$$

fzus63 kmqt 050802
glfls 
expires:202610052000;;561951

open lake forecast for lake superior
national weather service marquette mi
402 am edt mon oct 5 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...

30.3 inch high pressure over lake winnipeg early this morning 
continues east into the great lakes this afternoon. behind this, a 
29.5 inch low then drops southeast out of northern canada, reaching 
northern ontario at 29.5 inches by tuesday evening. this brings 29.6 
inch troughing over lake superior late on tuesday, weakening to 29.7 
inches through wednesday. high pressure builds back in from the 
canadian prairies and northern plains late in the week, resulting in 
30.1 inch ridging over lake superior late thursday into friday.




lsz263-052000-
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-
402 am edt mon oct 5 2026

.early this morning...north winds 10 to 20 knots. waves 2 to
4 feet. 
.today...north winds 5 to 15 knots backing northwest in the
afternoon, then backing south late. waves subsiding to calm to
2 feet. 
.tonight...southeast winds 5 to 15 knots becoming south 10 to
20 knots after midnight, then increasing to 15 to 25 knots late.
a chance of showers. waves building to 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots veering west late. a slight
chance of showers through early afternoon. waves 2 to 4 feet. 
.tuesday night...west winds 10 to 20 knots. waves subsiding to
1 to 3 feet. 
.wednesday...west winds 15 to 25 knots. waves building to 2 to
4 feet. 
.wednesday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves 2 to 4 feet. 
.thursday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet. 
.friday...west winds 10 to 20 knots backing east. waves calm to
2 feet. 

$$

fzus63 kmqt 050802
glfls 
expires:202610052000;;561952

open lake forecast for lake superior
national weather service marquette mi
402 am edt mon oct 5 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...

30.3 inch high pressure over lake winnipeg early this morning 
continues east into the great lakes this afternoon. behind this, a 
29.5 inch low then drops southeast out of northern canada, reaching 
northern ontario at 29.5 inches by tuesday evening. this brings 29.6 
inch troughing over lake superior late on tuesday, weakening to 29.7 
inches through wednesday. high pressure builds back in from the 
canadian prairies and northern plains late in the week, resulting in 
30.1 inch ridging over lake superior late thursday into friday.




lsz264-052000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
402 am edt mon oct 5 2026

.early this morning...northwest winds 15 to 25 knots. waves 3 to
6 feet occasionally to 8 feet. 
.today...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.tonight...south winds 5 to 15 knots increasing to 10 to 20 knots
late. a slight chance of showers after midnight. waves building
to 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots veering west late. a slight
chance of showers through early afternoon. waves building to 3 to
6 feet occasionally to 8 feet. 
.tuesday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to 2 to 4 feet. 
.wednesday...west winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.wednesday night...northwest winds 15 to 25 knots. waves building
to 3 to 5 feet occasionally to 7 feet. 
.thursday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to calm to 2 feet. 
.friday...northwest winds 10 to 20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 050802
glfls 
expires:202610052000;;561953

open lake forecast for lake superior
national weather service marquette mi
402 am edt mon oct 5 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...

30.3 inch high pressure over lake winnipeg early this morning 
continues east into the great lakes this afternoon. behind this, a 
29.5 inch low then drops southeast out of northern canada, reaching 
northern ontario at 29.5 inches by tuesday evening. this brings 29.6 
inch troughing over lake superior late on tuesday, weakening to 29.7 
inches through wednesday. high pressure builds back in from the 
canadian prairies and northern plains late in the week, resulting in 
30.1 inch ridging over lake superior late thursday into friday.




lsz265-052000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
402 am edt mon oct 5 2026

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

$$

fzus63 kmqt 050802
glfls 
expires:202610052000;;561954

open lake forecast for lake superior
national weather service marquette mi
402 am edt mon oct 5 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...

30.3 inch high pressure over lake winnipeg early this morning 
continues east into the great lakes this afternoon. behind this, a 
29.5 inch low then drops southeast out of northern canada, reaching 
northern ontario at 29.5 inches by tuesday evening. this brings 29.6 
inch troughing over lake superior late on tuesday, weakening to 29.7 
inches through wednesday. high pressure builds back in from the 
canadian prairies and northern plains late in the week, resulting in 
30.1 inch ridging over lake superior late thursday into friday.




lsz266-052000-
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-
402 am edt mon oct 5 2026

...gale watch in effect from tuesday morning through tuesday
afternoon...

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

$$

fzus63 kmqt 050802
glfls 
expires:202610052000;;561955

open lake forecast for lake superior
national weather service marquette mi
402 am edt mon oct 5 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...

30.3 inch high pressure over lake winnipeg early this morning 
continues east into the great lakes this afternoon. behind this, a 
29.5 inch low then drops southeast out of northern canada, reaching 
northern ontario at 29.5 inches by tuesday evening. this brings 29.6 
inch troughing over lake superior late on tuesday, weakening to 29.7 
inches through wednesday. high pressure builds back in from the 
canadian prairies and northern plains late in the week, resulting in 
30.1 inch ridging over lake superior late thursday into friday.




lsz267-052000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
402 am edt mon oct 5 2026

.early this morning...north winds to 30 knots with a few gale
force gusts to 35 knots possible. waves 7 to 10 feet occasionally
to 13 feet. 
.today...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. waves subsiding to 2 to 4 feet. 
.tonight...northwest winds 5 to 15 knots backing south after
midnight, then increasing to 10 to 20 knots late. waves subsiding
to calm to 2 feet, then building to 1 to 3 feet. 
.tuesday...south winds 20 to 30 knots. a chance of showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...southwest winds 20 to 30 knots becoming west
15 to 25 knots after midnight. a slight chance of showers through
midnight. waves subsiding to 2 to 4 feet. 
.wednesday...northwest winds 20 to 30 knots backing west by mid
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.wednesday night...west winds 20 to 30 knots veering northwest
after midnight. showers likely through midnight. a chance of
showers after midnight. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. a chance of showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 1 to 3 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of showers. waves building to 2 to 4 feet,
then subsiding to calm to 2 feet. 

$$