fzus61 kbuf 100802
glflo 
expires:202610101500;;843633

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sat oct 10 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 high pressure ridge averaging 30.1 inches exits slowly 
eastward today through sunday before a weak trough averaging 29.8 
inches slides eastward across the lake sunday night. behind the 
trough, a weak ridge averaging 29.9 inches slides eastward across 
the lake on monday, exits eastward monday night, and is followed by 
a cold front sweeping southeastward across the lake on tuesday. 
behind the cold front, a ridge averaging 30.0 inches builds from 
northern ontario and vicinity through this wednesday.


loz063>065-101500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt sat oct 10 2026

.today...east winds 5 to 15 knots. waves 2 feet or less. 
.tonight...east winds 10 to 15 knots becoming southeast 15 to
20 knots. waves 1 to 3 feet. 
.sunday...southeast winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of rain in the morning, then rain in the
afternoon. waves 1 to 3 feet. 
.sunday night...east winds 5 to 15 knots becoming northeast.
rain. waves 1 to 3 feet. 
.monday...northwest winds 10 knots or less becoming southwest and
increasing to 15 to 20 knots. showers likely monday night. waves
1 to 3 feet. 
.tuesday...north winds 15 to 20 knots. showers. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.wednesday...north winds 15 to 20 knots diminishing to 5 to
10 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 

$$

fzus61 kbuf 100802
glflo 
expires:202610101500;;843632

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sat oct 10 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 high pressure ridge averaging 30.1 inches exits slowly 
eastward today through sunday before a weak trough averaging 29.8 
inches slides eastward across the lake sunday night. behind the 
trough, a weak ridge averaging 29.9 inches slides eastward across 
the lake on monday, exits eastward monday night, and is followed by 
a cold front sweeping southeastward across the lake on tuesday. 
behind the cold front, a ridge averaging 30.0 inches builds from 
northern ontario and vicinity through this wednesday.


loz062-101500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt sat oct 10 2026

.today...southeast winds 10 to 15 knots becoming east 15 to
20 knots. waves 1 to 3 feet. 
.tonight...east winds 15 to 20 knots becoming southeast 5 to
15 knots. waves 1 to 3 feet. 
.sunday...southeast winds 5 to 15 knots becoming east. a chance
of rain in the morning, then rain in the afternoon. waves 1 to
2 feet. 
.sunday night...east winds 5 to 15 knots becoming northeast less
than 10 knots. rain. waves 2 feet or less. 
.monday...northwest winds 10 knots or less becoming southwest
10 to 15 knots. showers likely monday night. waves 1 foot or less
building to 1 to 3 feet. 
.tuesday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. showers likely. waves 2 to 4 feet. 
.wednesday...north winds 5 to 15 knots. waves 1 to 3 feet. 

$$

fzus61 kcle 100750
glfle 
expires:202610101415;;843247

open lake forecast for lake erie
national weather service cleveland oh
350 am edt sat oct 10 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 of 30.40 inches over the eastern great lakes will
build to new england today. the remnant low of isaias 29.80 
inches will move northeast into the ohio valley sunday and exit 
east off the mid-atlantic coast by monday. a cold front with
pressure of 29.70 inches will settle south across lake erie 
tuesday afternoon. high pressure of 30.30 inches will build over
the upper great lakes on wednesday. 


lez164>166-101415-
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-
350 am edt sat oct 10 2026

.today...southeast winds 10 to 15 knots. waves 1 to 2 feet. 
.tonight...southeast winds 10 to 15 knots increasing to 15 to
20 knots. a chance of rain after midnight. rain with a slight
chance of thunderstorms late. waves 1 to 3 feet building to 2 to
4 feet. 
.sunday...southeast winds 15 to 20 knots becoming northeast 10 to
15 knots. rain. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday night...northeast winds 5 to 15 knots becoming northwest.
a chance of showers in the evening. waves 1 to 3 feet. 
.monday...west winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. a chance of showers and
thunderstorms monday night. waves 1 to 3 feet building to 2 to
4 feet. 
.tuesday...southwest winds 15 to 20 knots becoming north. a
chance of showers during the day. waves 3 to 5 feet subsiding to
2 to 4 feet. 
.wednesday...north winds 10 to 15 knots becoming northeast. waves
2 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 100750
glfle 
expires:202610101415;;843246

open lake forecast for lake erie
national weather service cleveland oh
350 am edt sat oct 10 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 of 30.40 inches over the eastern great lakes will
build to new england today. the remnant low of isaias 29.80 
inches will move northeast into the ohio valley sunday and exit 
east off the mid-atlantic coast by monday. a cold front with
pressure of 29.70 inches will settle south across lake erie 
tuesday afternoon. high pressure of 30.30 inches will build over
the upper great lakes on wednesday. 


lez162-163-101415-
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-
350 am edt sat oct 10 2026

.today...southeast winds around 10 knots becoming east. waves
2 feet or less. 
.tonight...southeast winds 10 to 15 knots increasing to 15 to
20 knots. a chance of rain with a slight chance of thunderstorms
after midnight. rain with a slight chance of thunderstorms late.
waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...southeast winds 15 to 20 knots becoming northeast 10 to
15 knots. rain. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday night...northeast winds 5 to 10 knots becoming northwest.
a chance of showers in the evening. waves 2 feet or less. 
.monday...west winds 5 to 15 knots becoming southwest. a chance
of showers and thunderstorms monday night. waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots becoming north. a
chance of showers during the day. waves 1 to 3 feet. 
.wednesday...north winds 5 to 15 knots becoming east. waves 1 to
3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 100750
glfle 
expires:202610101415;;843248

open lake forecast for lake erie
national weather service cleveland oh
350 am edt sat oct 10 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 of 30.40 inches over the eastern great lakes will
build to new england today. the remnant low of isaias 29.80 
inches will move northeast into the ohio valley sunday and exit 
east off the mid-atlantic coast by monday. a cold front with
pressure of 29.70 inches will settle south across lake erie 
tuesday afternoon. high pressure of 30.30 inches will build over
the upper great lakes on wednesday. 


lez061-167>169-101415-
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-
350 am edt sat oct 10 2026

.today...southeast winds 5 to 15 knots becoming east. waves
2 feet or less. 
.tonight...southeast winds 10 to 15 knots increasing to 15 to
20 knots. rain likely late. waves 1 to 3 feet building to 3 to
5 feet. 
.sunday...southeast winds 15 to 20 knots becoming east 10 to
15 knots. rain. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.sunday night...northeast winds 5 to 15 knots becoming north
10 knots or less. a chance of showers in the evening. waves 1 to
3 feet. 
.monday...northwest winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. showers likely with a chance of
thunderstorms monday night. waves 1 to 3 feet building to 2 to
4 feet. 
.tuesday...southwest winds 15 to 20 knots becoming north. a
chance of showers and thunderstorms during the day. waves 3 to
5 feet subsiding to 2 to 4 feet. 
.wednesday...north winds 5 to 15 knots becoming northeast. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 100738
glflh 
expires:202610101545;;842796

open lake forecast for lake huron
national weather service detroit/pontiac mi
338 am edt sat oct 10 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...remnants from hurricane isaias will work into way up
into the ohio valley today and tomorrow, producing breezy
southeast flow across the great lakes. this system, 29.80 inches,
will center over the eastern ohio river valley tomorrow afternoon
before exiting into new england monday morning.


lhz463-464-101545-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
338 am edt sat oct 10 2026

.today...southeast winds 15 to 20 knots. waves 3 to 5 feet. 
.tonight...southeast winds 15 to 20 knots. waves 3 to 5 feet. 
.sunday...southeast winds 10 to 15 knots decreasing to 5 to
10 knots early in the afternoon. a chance of rain in the morning.
waves 2 to 4 feet. 
.sunday night...east winds 5 to 10 knots early in the evening
becoming light and variable...then becoming southwest 5 to
10 knots after midnight. waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots increasing to 10 to
15 knots. a chance of rain and thunderstorms late in the
afternoon. rain likely late in the evening. waves 2 feet or less
building to 2 to 4 feet late in the afternoon. 
.tuesday...west winds 10 to 15 knots becoming north 15 to
20 knots until early evening...then decreasing to 10 to 15 knots
by midnight. rain likely early in the morning. a chance of rain
in the late morning and early afternoon. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.wednesday...north winds 10 to 15 knots decreasing to 5 to
10 knots until early evening...then increasing to 10 to 15 knots
by midnight. waves 2 to 4 feet subsiding to 1 to 3 feet . 


$$

fzus63 kdtx 100738
glflh 
expires:202610101545;;842794

open lake forecast for lake huron
national weather service detroit/pontiac mi
338 am edt sat oct 10 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...remnants from hurricane isaias will work into way up
into the ohio valley today and tomorrow, producing breezy
southeast flow across the great lakes. this system, 29.80 inches,
will center over the eastern ohio river valley tomorrow afternoon
before exiting into new england monday morning.


lhz361-362-101545-
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-
338 am edt sat oct 10 2026

.today...southeast winds 15 to 20 knots with gusts to around
30 knots increasing to 20 to 25 knots with gusts to around
30 knots in the afternoon. waves 3 to 5 feet building to 6 to
9 feet in the late morning and afternoon. waves occasionally
around 12 feet. 
.tonight...south winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots with gusts to around
30 knots after midnight. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.sunday...south winds 10 to 15 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.sunday night...southeast winds 10 to 15 knots becoming south
5 to 10 knots in the late evening and overnight. waves 2 to
4 feet subsiding to 1 to 3 feet in the late evening and
overnight. 
.monday...southwest winds 5 to 10 knots becoming northeast 10 to
15 knots late in the afternoon. a chance of rain late in the
morning. rain likely late in the evening. waves 1 to 3 feet
building to 2 to 4 feet late in the afternoon. 
.tuesday...north winds 10 to 15 knots decreasing to 5 to 10 knots
by midnight. rain early in the morning. waves 2 to 4 feet. 
.wednesday...north winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kdtx 100738
glflh 
expires:202610101545;;842795

open lake forecast for lake huron
national weather service detroit/pontiac mi
338 am edt sat oct 10 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...remnants from hurricane isaias will work into way up
into the ohio valley today and tomorrow, producing breezy
southeast flow across the great lakes. this system, 29.80 inches,
will center over the eastern ohio river valley tomorrow afternoon
before exiting into new england monday morning.


lhz363-462-101545-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
338 am edt sat oct 10 2026

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


$$

fzus63 kdtx 100738
glfsc 
expires:202610101545;;842857

lake st clair forecast
national weather service detroit/pontiac mi
338 am edt sat oct 10 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...remnants from hurricane isaias will work into way up
into the ohio valley today and tomorrow, producing breezy
southeast flow across the great lakes. this system, 29.80 inches,
will center over the eastern ohio river valley tomorrow afternoon
before exiting into new england monday morning.


lcz460-101545-
lake st clair-
338 am edt sat oct 10 2026

.today...southeast winds 10 to 15 knots. partly sunny. waves 2 feet
or less.
.tonight...southeast winds 10 to 15 knots. partly cloudy ...then
mostly cloudy with a chance of light rain early in the morning.
waves 2 feet or less.
.sunday...southeast winds 10 to 15 knots becoming east 5 to 10 knots
early in the afternoon. a chance of light rain early in the
morning...then rain in the late morning and early afternoon. a
chance of light rain early in the afternoon. waves 2 feet or less.
.sunday night...northeast winds 5 to 10 knots early in the evening
becoming light and variable...then becoming west 5 to 10 knots after
midnight. mostly cloudy early in the evening becoming partly cloudy.
waves 2 feet or less.
.monday...southwest winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon and evening. partly sunny...then partly cloudy with
a chance of light rain and thunderstorms in the evening. waves 2
feet or less.
.tuesday...north winds 15 to 20 knots. partly cloudy. light rain
likely and a chance of thunderstorms. waves 1 to 3 feet.
.wednesday...northeast winds 10 to 15 knots. partly cloudy. waves 2
feet or less.

$$

fzus63 kmkx 100642
glflm 
expires:202610101515;;840520

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
142 am cdt sat oct 10 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...

high pressure around 30.2 inches will continue to push east
overnight, while low pressure around 29.2 inches develops over the
northern plains. southeast winds will shift south overnight.

expect winds to increase later today, as lake michigan sits 
between the two systems, and has the potential to produce 
southerly gusts up to 30 knots through early sunday morning. a few
gale force gusts are possible across the northern portions of the
lake saturday afternoon and evening. any such gusts are expected
to be brief and isolated, with gale headlines not anticipated.

the main low pressure system weakens to around 29.6 inches 
sunday, as it lifts from ontario into the james bay region. this 
will drag a cold front across the upper great lakes later sunday 
into monday, as south to southwest winds shift north later monday
into tuesday. could see a few gale force gusts monday night into 
tuesday behind the cold frontal passage. showers and storms will
accompany the passing front. widespread severe weather hazards are
not anticipated at this time. winds should gradually ease through
the middle of the week, as another high pressure system around 
30.2 inches builds across the upper great lakes region.


lmz261-362-364-366-563-565-567-868-101515-
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-
142 am cdt sat oct 10 2026

sheboygan wi to pentwater mi north...

.today...southeast winds 15 to 25 kt becoming south to 30 kt.
waves 6 to 9 ft occasionally to 12 ft building to 8 to 11 ft
occasionally to 14 ft. 
.tonight...south winds to 30 kt. waves 8 to 11 ft occasionally to
14 ft subsiding to 6 to 9 ft occasionally to 12 ft. 
.sunday...south winds 15 to 25 kt becoming southwest 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.sunday night...south winds 10 to 20 kt becoming southwest. waves
2 to 4 ft. 
.monday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft. 
.monday night...north winds 10 to 20 kt becoming northeast.
showers likely. waves 4 to 6 ft occasionally to 8 ft. 
.tuesday...north winds 15 to 25 kt. waves 4 to 7 ft occasionally
to 9 ft. 
.wednesday...north winds 10 to 15 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 100642
glflm 
expires:202610101515;;840521

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
142 am cdt sat oct 10 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...

high pressure around 30.2 inches will continue to push east
overnight, while low pressure around 29.2 inches develops over the
northern plains. southeast winds will shift south overnight.

expect winds to increase later today, as lake michigan sits 
between the two systems, and has the potential to produce 
southerly gusts up to 30 knots through early sunday morning. a few
gale force gusts are possible across the northern portions of the
lake saturday afternoon and evening. any such gusts are expected
to be brief and isolated, with gale headlines not anticipated.

the main low pressure system weakens to around 29.6 inches 
sunday, as it lifts from ontario into the james bay region. this 
will drag a cold front across the upper great lakes later sunday 
into monday, as south to southwest winds shift north later monday
into tuesday. could see a few gale force gusts monday night into 
tuesday behind the cold frontal passage. showers and storms will
accompany the passing front. widespread severe weather hazards are
not anticipated at this time. winds should gradually ease through
the middle of the week, as another high pressure system around 
30.2 inches builds across the upper great lakes region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-101515-
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-
142 am cdt sat oct 10 2026

sheboygan wi to pentwater mi south...

.today...south winds 15 to 25 kt increasing to 30 kt. waves 6 to
9 ft occasionally to 12 ft building to 8 to 11 ft occasionally to
14 ft. 
.tonight...southeast winds to 30 kt becoming south 15 to 25 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.sunday...southeast winds 10 to 20 kt becoming south. waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.sunday night...south winds 10 to 20 kt. waves 1 to 3 ft. 
.monday...south winds 10 to 20 kt becoming southwest. waves 3 to
5 ft. 
.monday night...southwest winds 10 to 20 kt becoming northwest
15 to 25 kt. chance of showers and thunderstorms. waves 3 to 5 ft
building to 4 to 7 ft occasionally to 9 ft. 
.tuesday...north winds 15 to 25 kt. waves 6 to 9 ft occasionally
to 12 ft. 
.wednesday...northeast winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmqt 100801
glfls 
expires:202610102000;;843524

open lake forecast for lake superior
national weather service marquette mi
401 am edt sat oct 10 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...

lake superior is currently between a 30.4 inch high over new york 
state and a 29.4 inch low over southern saskatchewan. the low slowly 
weakens to 29.6 inches while tracking eastward into ontario today 
into tonight. meanwhile, 29.7 inch hurricane isaias will move north 
through alabama, eventually helping to kick the high eastward off 
the atlantic coast by early sunday. sunday morning, the canada low 
will split into 2 weaker 29.7 inch lows, one settling over the 
central plains and one moving from northern minnesota to northern 
ontario. this will create weak 29.8 inch troughing over lake 
superior for sunday, deepening to 29.7 inches by monday evening. 
the colorado low crosses the great lakes basin early next week, 
followed by 30.2 inch high pressure for the midweek.




lsz265-102000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt sat oct 10 2026

.early this morning...southeast winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.today...southeast winds 20 to 30 knots veering south in the
afternoon. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.tonight...south winds 20 to 30 knots. waves subsiding to 2 to
4 feet. 
.sunday...south winds 15 to 25 knots becoming southeast 10 to
20 knots late. waves subsiding to calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots becoming north
15 to 25 knots after midnight. a slight chance of showers after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.monday...northeast winds 20 to 30 knots increasing to gales to
35 knots by mid afternoon. a chance of showers. waves building to
5 to 8 feet occasionally to 10 feet. 
.monday night...northeast gales to 35 knots diminishing to 20 to
30 knots after midnight. showers likely through midnight, then a
chance of showers after midnight. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...north winds 15 to 25 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 10 to 20 knots veering east. waves
building to 1 to 3 feet. 

$$

fzus63 kmqt 100801
glfls 
expires:202610102000;;843521

open lake forecast for lake superior
national weather service marquette mi
401 am edt sat oct 10 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...

lake superior is currently between a 30.4 inch high over new york 
state and a 29.4 inch low over southern saskatchewan. the low slowly 
weakens to 29.6 inches while tracking eastward into ontario today 
into tonight. meanwhile, 29.7 inch hurricane isaias will move north 
through alabama, eventually helping to kick the high eastward off 
the atlantic coast by early sunday. sunday morning, the canada low 
will split into 2 weaker 29.7 inch lows, one settling over the 
central plains and one moving from northern minnesota to northern 
ontario. this will create weak 29.8 inch troughing over lake 
superior for sunday, deepening to 29.7 inches by monday evening. 
the colorado low crosses the great lakes basin early next week, 
followed by 30.2 inch high pressure for the midweek.




lsz162-102000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt sat oct 10 2026 /301 am cdt sat oct 10 2026/

.early this morning...east winds 10 to 20 knots. waves 2 to
4 feet. 
.today...east winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon, then becoming south 20 to 30 knots late. waves
subsiding to 1 to 3 feet. 
.tonight...south winds to 30 knots with a few gale force gusts to
35 knots possible veering southwest after midnight, then
diminishing to 15 to 25 knots late. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.sunday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing northeast late. waves
subsiding to calm to 2 feet. 
.sunday night...northeast winds 15 to 25 knots increasing to
20 to 30 knots after midnight. a slight chance of showers. waves
building to 4 to 7 feet occasionally to 9 feet. 
.monday...northeast gales to 35 knots. a chance of showers. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.monday night...northeast winds 20 to 30 knots. showers likely
through midnight. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.tuesday...northeast winds 10 to 20 knots becoming north 5 to
15 knots. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots becoming east 10 to
20 knots. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 100801
glfls 
expires:202610102000;;843522

open lake forecast for lake superior
national weather service marquette mi
401 am edt sat oct 10 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...

lake superior is currently between a 30.4 inch high over new york 
state and a 29.4 inch low over southern saskatchewan. the low slowly 
weakens to 29.6 inches while tracking eastward into ontario today 
into tonight. meanwhile, 29.7 inch hurricane isaias will move north 
through alabama, eventually helping to kick the high eastward off 
the atlantic coast by early sunday. sunday morning, the canada low 
will split into 2 weaker 29.7 inch lows, one settling over the 
central plains and one moving from northern minnesota to northern 
ontario. this will create weak 29.8 inch troughing over lake 
superior for sunday, deepening to 29.7 inches by monday evening. 
the colorado low crosses the great lakes basin early next week, 
followed by 30.2 inch high pressure for the midweek.




lsz263-102000-
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-
401 am edt sat oct 10 2026

.early this morning...southeast winds 15 to 25 knots. waves 3 to
6 feet occasionally to 8 feet. 
.today...southeast winds 15 to 25 knots veering south in the
afternoon, then increasing to 20 to 30 knots late. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.tonight...south winds 20 to 30 knots veering southwest after
midnight. waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday...southwest winds 10 to 20 knots becoming west 5 to
15 knots late. waves subsiding to calm to 2 feet. 
.sunday night...northeast winds 15 to 25 knots increasing to
gales to 35 knots after midnight. a chance of showers after
midnight. waves building to 5 to 8 feet occasionally to 10 feet. 
.monday...northeast gales to 35 knots. a chance of showers. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.monday night...northeast winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. showers likely through midnight.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...northeast winds 10 to 20 knots becoming northwest 5 to
15 knots. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots becoming east 10 to
20 knots. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 100801
glfls 
expires:202610102000;;843523

open lake forecast for lake superior
national weather service marquette mi
401 am edt sat oct 10 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...

lake superior is currently between a 30.4 inch high over new york 
state and a 29.4 inch low over southern saskatchewan. the low slowly 
weakens to 29.6 inches while tracking eastward into ontario today 
into tonight. meanwhile, 29.7 inch hurricane isaias will move north 
through alabama, eventually helping to kick the high eastward off 
the atlantic coast by early sunday. sunday morning, the canada low 
will split into 2 weaker 29.7 inch lows, one settling over the 
central plains and one moving from northern minnesota to northern 
ontario. this will create weak 29.8 inch troughing over lake 
superior for sunday, deepening to 29.7 inches by monday evening. 
the colorado low crosses the great lakes basin early next week, 
followed by 30.2 inch high pressure for the midweek.




lsz264-102000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am edt sat oct 10 2026

.early this morning...southeast 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...southeast winds to 30 knots with a few gale force gusts
to 35 knots possible becoming south 20 to 30 knots late. waves
building to 6 to 10 feet occasionally to 13 feet. 
.tonight...south winds 20 to 30 knots veering southwest after
midnight. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.sunday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...northeast winds 10 to 20 knots increasing to
20 to 30 knots after midnight. a chance of showers. waves
subsiding to calm to 2 feet, then building to 5 to 8 feet
occasionally to 10 feet. 
.monday...northeast gales to 35 knots. showers likely through
early afternoon, then a chance of showers by mid afternoon. waves
building to 6 to 9 feet occasionally to 11 feet, then subsiding
to 4 to 7 feet occasionally to 9 feet. 
.monday night...northeast winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...northeast winds 10 to 20 knots becoming northwest 5 to
15 knots. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots becoming east 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 100801
glfls 
expires:202610102000;;843525

open lake forecast for lake superior
national weather service marquette mi
401 am edt sat oct 10 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...

lake superior is currently between a 30.4 inch high over new york 
state and a 29.4 inch low over southern saskatchewan. the low slowly 
weakens to 29.6 inches while tracking eastward into ontario today 
into tonight. meanwhile, 29.7 inch hurricane isaias will move north 
through alabama, eventually helping to kick the high eastward off 
the atlantic coast by early sunday. sunday morning, the canada low 
will split into 2 weaker 29.7 inch lows, one settling over the 
central plains and one moving from northern minnesota to northern 
ontario. this will create weak 29.8 inch troughing over lake 
superior for sunday, deepening to 29.7 inches by monday evening. 
the colorado low crosses the great lakes basin early next week, 
followed by 30.2 inch high pressure for the midweek.




lsz266-102000-
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-
401 am edt sat oct 10 2026

...gale warning in effect from 11 am edt this morning through
late tonight...

.early this morning...southeast winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.today...southeast gales to 35 knots veering south in the
afternoon. waves building to 6 to 10 feet occasionally to
13 feet. 
.tonight...south gales to 35 knots diminishing to 20 to 30 knots
late. waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.sunday...south winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...south winds 10 to 20 knots becoming northeast
20 to 30 knots after midnight. a slight chance of showers after
midnight. waves building to 4 to 7 feet occasionally to 9 feet. 
.monday...northeast winds 20 to 30 knots. a chance of showers.
waves building to 4 to 8 feet occasionally to 10 feet. 
.monday night...northeast winds 20 to 30 knots. a chance of
showers. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday...northeast winds 15 to 25 knots becoming northwest 5 to
15 knots. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 10 to 20 knots veering east. waves
building to 1 to 3 feet. 

$$

fzus63 kmqt 100801
glfls 
expires:202610102000;;843526

open lake forecast for lake superior
national weather service marquette mi
401 am edt sat oct 10 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...

lake superior is currently between a 30.4 inch high over new york 
state and a 29.4 inch low over southern saskatchewan. the low slowly 
weakens to 29.6 inches while tracking eastward into ontario today 
into tonight. meanwhile, 29.7 inch hurricane isaias will move north 
through alabama, eventually helping to kick the high eastward off 
the atlantic coast by early sunday. sunday morning, the canada low 
will split into 2 weaker 29.7 inch lows, one settling over the 
central plains and one moving from northern minnesota to northern 
ontario. this will create weak 29.8 inch troughing over lake 
superior for sunday, deepening to 29.7 inches by monday evening. 
the colorado low crosses the great lakes basin early next week, 
followed by 30.2 inch high pressure for the midweek.




lsz267-102000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am edt sat oct 10 2026

.early this morning...southeast winds to 30 knots with a few gale
force gusts to 35 knots possible. waves 3 to 6 feet occasionally
to 8 feet. 
.today...southeast winds to 30 knots with a few gale force gusts
to 35 knots possible veering south late. waves building to 5 to
9 feet occasionally to 11 feet. 
.tonight...south winds to 30 knots with a few gale force gusts to
35 knots possible diminishing to 20 to 30 knots late. waves
subsiding to 4 to 8 feet occasionally to 10 feet. 
.sunday...south winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...south winds 10 to 20 knots. a slight chance of
showers after midnight. waves building to 2 to 4 feet. 
.monday...northeast winds 15 to 25 knots. a chance of showers
through early afternoon, then showers likely by mid afternoon.
waves building to 4 to 8 feet occasionally to 10 feet. 
.monday night...northeast winds 15 to 25 knots. a chance of
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...north winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.wednesday...northwest winds 10 to 20 knots veering east. waves
building to 1 to 3 feet. 

$$