fzus61 kbuf 030203
glflo 
expires:202610030900;;439731

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt fri oct 2 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 build east across the lower great 
lakes region through saturday, before sliding northeast into 
northern new england saturday night. a 29.7 inch low over 
northwestern ontario sunday will deepen to 29.4 inches as it slides 
just south of james bay into 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 region 
monday into tuesday, before sliding into the northeast wednesday.


loz063>065-030900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt fri oct 2 2026

.overnight...northwest winds 15 to 20 knots becoming
northeast. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.saturday...northeast winds 5 to 15 knots diminishing to less
than 10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.saturday night...northeast winds 5 to 15 knots becoming
southeast. waves 2 feet or less. 
.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 15 to 20 knots becoming west. a
chance of showers overnight. waves 1 to 3 feet building to 3 to
6 feet. 
.monday...northwest winds to 30 knots diminishing to 15 to
20 knots. waves 5 to 8 feet subsiding to 3 to 6 feet. waves
occasionally around 10 feet. 
.tuesday...northwest winds 15 to 20 knots becoming southwest and
diminishing to 5 to 10 knots. waves 2 to 4 feet subsiding to 1 to
2 feet. 
.wednesday...southwest winds 15 to 20 knots. waves 1 to 3 feet
building to 2 to 4 feet. 

$$

fzus61 kbuf 030203
glflo 
expires:202610030900;;439730

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt fri oct 2 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 build east across the lower great 
lakes region through saturday, before sliding northeast into 
northern new england saturday night. a 29.7 inch low over 
northwestern ontario sunday will deepen to 29.4 inches as it slides 
just south of james bay into 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 region 
monday into tuesday, before sliding into the northeast wednesday.


loz062-030900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt fri oct 2 2026

.overnight...northwest winds 15 to 20 knots becoming north
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...northeast winds 10 knots or less becoming east. waves
2 feet or less. 
.saturday night...east winds 5 to 15 knots becoming southeast.
waves 2 feet or less. 
.sunday...southeast winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.sunday night...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 25 knots. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.tuesday...northwest winds 5 to 10 knots becoming southwest.
waves 2 feet or less. 
.wednesday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 

$$

fzus61 kcle 030142
glfle 
expires:202610030815;;439184

open lake forecast for lake erie
national weather service cleveland oh
942 pm edt fri oct 2 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 briefly build across the region 
on saturday. a cold front will cross the lake on sunday, followed 
by stronger high pressure 30.40 inches through mid- next week.


lez166>168-030815-
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-
942 pm edt fri oct 2 2026

.overnight...north winds 15 to 20 knots diminishing to
10 to 15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.saturday...northeast winds 5 to 15 knots. waves 1 to 3 feet. 
.saturday night...east winds 5 to 15 knots becoming southeast.
waves 1 to 2 feet. 
.sunday...south winds 5 to 10 knots becoming west. waves 2 feet
or less. 
.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 becoming north 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...north winds 10 knots or less becoming south 10 to
15 knots. waves 2 feet or less. 
.wednesday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet. 

$$

fzus61 kcle 030142
glfle 
expires:202610030815;;439183

open lake forecast for lake erie
national weather service cleveland oh
942 pm edt fri oct 2 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 briefly build across the region 
on saturday. a cold front will cross the lake on sunday, followed 
by stronger high pressure 30.40 inches through mid- next week.


lez164-165-030815-
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-
942 pm edt fri oct 2 2026

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

$$

fzus61 kcle 030142
glfle 
expires:202610030815;;439185

open lake forecast for lake erie
national weather service cleveland oh
942 pm edt fri oct 2 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 briefly build across the region 
on saturday. a cold front will cross the lake on sunday, followed 
by stronger high pressure 30.40 inches through mid- next week.


lez061-169-030815-
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-
942 pm edt fri oct 2 2026

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

$$

fzus61 kcle 030142
glfle 
expires:202610030815;;439182

open lake forecast for lake erie
national weather service cleveland oh
942 pm edt fri oct 2 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 briefly build across the region 
on saturday. a cold front will cross the lake on sunday, followed 
by stronger high pressure 30.40 inches through mid- next week.


lez162-163-030815-
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-
942 pm edt fri oct 2 2026

.overnight...northeast winds 10 to 15 knots. waves 1 to
2 feet. 
.saturday...northeast winds 5 to 15 knots becoming east. waves
2 feet or less. 
.saturday night...east winds 10 knots or less becoming south.
waves 2 feet or less. 
.sunday...west winds 10 knots or less. 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 becoming north. waves
2 feet or less. 
.tuesday...northeast winds 10 knots or less becoming south. waves
2 feet or less. 
.wednesday...southwest winds 10 to 15 knots becoming west. waves
1 to 2 feet. 

$$

fzus63 kdtx 030209
glfsc 
expires:202610031015;;439907

lake st clair forecast
national weather service detroit/pontiac mi
1009 pm edt fri oct 2 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 pass across lake
huron and southern ontario on saturday. this high will quickly
exit east of the region saturday night. a low pressure system
tracking across northern ontario into northern quebec will then
drive a cold front across the region on sunday.


lcz460-031015-
lake st clair-
1009 pm edt fri oct 2 2026

.rest of tonight...north winds 5 to 10 knots. mostly clear. waves 2
feet or less.
.saturday...north winds 5 to 10 knots veering to the east early in
the afternoon...then becoming light and variable late in the
afternoon. sunny. waves 2 feet or less.
.saturday night...southeast 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 late morning and afternoon. 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 becoming north 5 to 10
knots in the evening. clear. waves 2 feet or less.
.tuesday...south winds 5 to 10 knots. clear. waves 2 feet or less.
.wednesday...southwest winds 10 to 15 knots. mostly clear. waves 2
feet or less.

$$

fzus63 kdtx 030205
glflh 
expires:202610031015;;439861

open lake forecast for lake huron
national weather service detroit/pontiac mi
1005 pm edt fri oct 2 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 pass across lake
huron and southern ontario on saturday. this high will quickly
exit east of the region saturday night. a low pressure system
tracking across northern ontario into northern quebec will then
drive a cold front across the region on sunday.


lhz462>464-031015-
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 fri oct 2 2026

.rest of tonight...north winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. waves 3 to 5 feet. 
.saturday...north winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 to 4 feet subsiding to 1 to
3 feet in the late morning and afternoon. 
.saturday night...light and variable winds becoming southeast
5 to 10 knots in the late evening and overnight. waves 2 feet or
less. 
.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...west winds 15 to 20 knots becoming northwest
20 to 25 knots by midnight...then decreasing to 15 to 20 knots
after midnight. waves 5 to 7 feet. waves occasionally around
10 feet. 
.monday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the evening. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.tuesday...west winds 5 to 10 knots backing to the south early in
the evening...then increasing to 15 to 20 knots by midnight.
waves 2 to 4 feet subsiding to 1 to 3 feet until early evening...
then building to 2 to 4 feet by midnight. 
.wednesday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots . waves 2 to 4 feet. 


$$

fzus63 kdtx 030205
glflh 
expires:202610031015;;439860

open lake forecast for lake huron
national weather service detroit/pontiac mi
1005 pm edt fri oct 2 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 pass across lake
huron and southern ontario on saturday. this high will quickly
exit east of the region saturday night. a low pressure system
tracking across northern ontario into northern quebec will then
drive a cold front across the region on sunday.


lhz361>363-031015-
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-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
1005 pm edt fri oct 2 2026

.rest of tonight...northwest winds 15 to 20 knots decreasing to
10 to 15 knots after midnight. waves 3 to 5 feet. 
.saturday...north winds 5 to 10 knots early in the morning
becoming light and variable. waves 1 to 3 feet. 
.saturday night...southeast winds 5 to 10 knots increasing to
10 to 15 knots in the late evening and overnight. a chance of
rain after midnight. waves 1 to 3 feet. 
.sunday...southwest winds 15 to 20 knots. gusts to 30 knots early
in the afternoon. a chance of rain. waves 3 to 5 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 around
30 knots decreasing to 5 to 10 knots. waves 5 to 7 feet. waves
occasionally around 10 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 evening increasing to 15 to 20 knots
by midnight. waves 1 to 3 feet building to 3 to 5 feet by
midnight. 
.wednesday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots . waves 3 to 5 feet. 


$$

fzus63 kmkx 030156
glflm 
expires:202610030915;;439358

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
856 pm cdt fri oct 2 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...

30.3 inch high pressure will move across lake michigan tonight 
bringing light and variable winds to northern and central lake
michigan, while modest northeast winds will shift easterly over 
the south. winds will then trend south-southwesterly saturday as 
29.8 inch low pressure moves toward the hudson bay from the 
canadian prairies. the low will pull a cold front across the 
waters saturday night into sunday, bringing a west-northwest wind 
shift. showers could accompany the passing front, particularly 
across the northern half of the waters. northwest winds will 
continue through the day monday, tapering monday night as 30.2 
inch high pressure moves in from the northern great plains. 

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. best potential 
for rain is currently favored over the northern third of the open 
waters. generally westerly winds will continue through friday as 
30.1 inch high pressure moves near or just south of lake 
michigan.


lmz080-669-671-673-675-777-779-870-872-874-876-878-030915-
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-
856 pm cdt fri oct 2 2026

sheboygan wi to pentwater mi south...

.rest of tonight...north winds 10 to 20 kt becoming east 10 to
15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.saturday...east winds 10 to 15 kt becoming south 10 to 20 kt.
waves 2 to 4 ft. 
.saturday night...southeast winds 10 to 20 kt becoming southwest.
waves 3 to 5 ft. 
.sunday...west winds 10 to 20 kt becoming northwest. waves 4 to
6 ft occasionally to 8 ft. 
.sunday night...north winds 10 to 20 kt. waves 3 to 5 ft. 
.monday...north winds 10 to 20 kt. waves 3 to 5 ft. 
.monday night...northeast winds 10 to 15 kt becoming southeast.
waves 1 to 3 ft subsiding to 1 to 2 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
3 to 5 ft building to 5 to 8 ft occasionally to 10 ft. 
.wednesday...southwest winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft.  

$$

fzus63 kmkx 030156
glflm 
expires:202610030915;;439357

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
856 pm cdt fri oct 2 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...

30.3 inch high pressure will move across lake michigan tonight 
bringing light and variable winds to northern and central lake
michigan, while modest northeast winds will shift easterly over 
the south. winds will then trend south-southwesterly saturday as 
29.8 inch low pressure moves toward the hudson bay from the 
canadian prairies. the low will pull a cold front across the 
waters saturday night into sunday, bringing a west-northwest wind 
shift. showers could accompany the passing front, particularly 
across the northern half of the waters. northwest winds will 
continue through the day monday, tapering monday night as 30.2 
inch high pressure moves in from the northern great plains. 

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. best potential 
for rain is currently favored over the northern third of the open 
waters. generally westerly winds will continue through friday as 
30.1 inch high pressure moves near or just south of lake 
michigan.


lmz261-362-364-366-563-565-567-868-030915-
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-
856 pm cdt fri oct 2 2026

sheboygan wi to pentwater mi north...

.rest of tonight...north winds 10 to 15 kt veering to east. waves
1 to 3 ft subsiding to 1 ft or less. 
.saturday...southeast winds 10 to 15 kt becoming south 10 to
20 kt. waves 2 to 4 ft. 
.saturday night...south winds 10 to 20 kt increasing to 30 kt
after midnight, then becoming southwest late. chance of showers.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. 
.sunday...west winds to 30 kt becoming northwest. chance of
showers in the morning. waves 4 to 7 ft occasionally to 9 ft
subsiding to 3 to 5 ft. 
.sunday night...northwest winds to 30 kt diminishing to 15 to
25 kt. waves 3 to 5 ft. 
.monday...northwest winds 15 to 25 kt becoming north. waves 3 to
5 ft subsiding to 2 to 4 ft. 
.monday night...northeast winds 10 to 20 kt veering to south
10 to 15 kt. waves 1 to 3 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
3 to 5 ft building to 5 to 8 ft occasionally to 10 ft. 
.wednesday...southwest winds to 30 kt. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft.  

$$

fzus63 kmqt 030204
glfls 
expires:202610030800;;439793

open lake forecast for lake superior
national weather service marquette mi
1003 pm edt fri oct 2 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 shifts east to the great lakes tonight 
through tomorrow. a weak 29.9 inch trough skirts along lake 
superior's north shore tomorrow night and sunday with 30.3 inch high 
pressure quickly returning sunday night into monday. ridging remains 
in the area until tuesday morning before being replaced by troughing 
of at least 29.7 inches tuesday evening/wednesday morning.




lsz162-030800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1003 pm edt fri oct 2 2026 /903 pm cdt fri oct 2 2026/

.rest of tonight...southwest winds 5 to 15 knots diminishing to
less than 10 knots after midnight, then becoming south 5 to
15 knots late. waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots increasing to 15 to
25 knots. a chance of showers. waves building to 1 to 3 feet. 
.saturday night...south winds 10 to 20 knots becoming west 15 to
25 knots after midnight. a chance of showers through midnight.
waves building to 2 to 4 feet. 
.sunday...northwest winds 15 to 25 knots becoming west 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.sunday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves 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 5 to 15 knots becoming south
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.tuesday...south winds 15 to 25 knots veering west. waves
building to 2 to 4 feet, then subsiding to calm to 2 feet. 
.wednesday...west winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 030204
glfls 
expires:202610030800;;439794

open lake forecast for lake superior
national weather service marquette mi
1003 pm edt fri oct 2 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 shifts east to the great lakes tonight 
through tomorrow. a weak 29.9 inch trough skirts along lake 
superior's north shore tomorrow night and sunday with 30.3 inch high 
pressure quickly returning sunday night into monday. ridging remains 
in the area until tuesday morning before being replaced by troughing 
of at least 29.7 inches tuesday evening/wednesday morning.




lsz263-030800-
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-
1003 pm edt fri oct 2 2026

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

$$

fzus63 kmqt 030204
glfls 
expires:202610030800;;439795

open lake forecast for lake superior
national weather service marquette mi
1003 pm edt fri oct 2 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 shifts east to the great lakes tonight 
through tomorrow. a weak 29.9 inch trough skirts along lake 
superior's north shore tomorrow night and sunday with 30.3 inch high 
pressure quickly returning sunday night into monday. ridging remains 
in the area until tuesday morning before being replaced by troughing 
of at least 29.7 inches tuesday evening/wednesday morning.




lsz264-030800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1003 pm edt fri oct 2 2026

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

$$

fzus63 kmqt 030204
glfls 
expires:202610030800;;439796

open lake forecast for lake superior
national weather service marquette mi
1003 pm edt fri oct 2 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 shifts east to the great lakes tonight 
through tomorrow. a weak 29.9 inch trough skirts along lake 
superior's north shore tomorrow night and sunday with 30.3 inch high 
pressure quickly returning sunday night into monday. ridging remains 
in the area until tuesday morning before being replaced by troughing 
of at least 29.7 inches tuesday evening/wednesday morning.




lsz265-030800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1003 pm edt fri oct 2 2026

.rest of tonight...west winds 10 to 20 knots backing southwest
late. waves calm to 2 feet. 
.saturday...south winds 10 to 20 knots increasing to 15 to
25 knots late. a chance of showers by mid afternoon. waves
building to 1 to 3 feet. 
.saturday night...south winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible after
midnight, then veering west late. a chance of showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.sunday...northwest gales to 35 knots. a slight chance of showers
by mid afternoon. waves building to 4 to 8 feet occasionally to
10 feet. 
.sunday night...northwest winds 20 to 30 knots. waves 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 10 to
20 knots after midnight. waves calm to 2 feet. 
.tuesday...south winds 20 to 30 knots becoming southwest gales to
35 knots. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.wednesday...west winds 20 to 30 knots. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 

$$

fzus63 kmqt 030204
glfls 
expires:202610030800;;439797

open lake forecast for lake superior
national weather service marquette mi
1003 pm edt fri oct 2 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 shifts east to the great lakes tonight 
through tomorrow. a weak 29.9 inch trough skirts along lake 
superior's north shore tomorrow night and sunday with 30.3 inch high 
pressure quickly returning sunday night into monday. ridging remains 
in the area until tuesday morning before being replaced by troughing 
of at least 29.7 inches tuesday evening/wednesday morning.




lsz266-030800-
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-
1003 pm edt fri oct 2 2026

.rest of tonight...northwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight, then backing southwest late. waves
2 to 4 feet subsiding to calm to 2 feet. 
.saturday...south winds 10 to 20 knots increasing to 15 to
25 knots late. a chance of showers by mid afternoon. waves
building to 1 to 3 feet. 
.saturday night...south winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible after
midnight, then becoming southwest 20 to 30 knots late. showers
through midnight, then a chance of showers after midnight. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet. 
.sunday...northwest gales to 35 knots. a slight chance of
showers. waves building to 8 to 11 feet occasionally to 14 feet. 
.sunday night...northwest winds 20 to 30 knots. a slight chance
of showers through midnight. waves subsiding to 5 to 8 feet
occasionally to 10 feet. 
.monday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid 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.
.tuesday...south winds 20 to 30 knots becoming southwest gales to
35 knots. waves building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 

$$

fzus63 kmqt 030204
glfls 
expires:202610030800;;439798

open lake forecast for lake superior
national weather service marquette mi
1003 pm edt fri oct 2 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 shifts east to the great lakes tonight 
through tomorrow. a weak 29.9 inch trough skirts along lake 
superior's north shore tomorrow night and sunday with 30.3 inch high 
pressure quickly returning sunday night into monday. ridging remains 
in the area until tuesday morning before being replaced by troughing 
of at least 29.7 inches tuesday evening/wednesday morning.




lsz267-030800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1003 pm edt fri oct 2 2026

.rest of tonight...northwest winds 10 to 20 knots becoming west
5 to 15 knots late. waves 3 to 5 feet occasionally to 7 feet
subsiding to calm to 2 feet. 
.saturday...south winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a chance of showers by mid afternoon.
waves calm to 2 feet. 
.saturday night...south winds 15 to 25 knots increasing to 20 to
30 knots after midnight. a chance of showers through midnight,
then showers after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...west gales to 35 knots becoming northwest gales to
40 knots by mid afternoon. a chance of showers. waves building to
9 to 12 feet occasionally to 15 feet. 
.sunday night...northwest gales to 35 knots diminishing to 20 to
30 knots after midnight. a slight chance of showers through
midnight. waves subsiding to 5 to 8 feet occasionally to 10 feet.
.monday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.monday night...northwest winds 5 to 15 knots backing southwest
after midnight. waves subsiding to calm to 2 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest 20 to
30 knots. waves building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to 2 to 4 feet. 

$$