fzus61 kbuf 092002
glflo 
expires:202610100300;;813070

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt fri oct 9 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 tonight 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>065-100300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt fri oct 9 2026

.tonight...northwest winds 15 to 20 knots becoming east 5 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.saturday...east winds 5 to 15 knots. waves 2 feet or less. 
.saturday night...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...southeast winds 5 to 15 knots. rain. waves 1 to
3 feet. 
.monday...north winds 10 knots or less becoming southwest and
increasing to 15 to 20 knots. showers likely monday night. waves
1 to 3 feet. 
.tuesday...west winds 15 to 20 knots becoming north. showers
likely. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.wednesday...north winds 15 to 20 knots becoming northeast 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 

$$

fzus61 kbuf 092002
glflo 
expires:202610100300;;813069

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt fri oct 9 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 tonight 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.


loz062-100300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt fri oct 9 2026

.tonight...northwest winds 5 to 15 knots becoming east. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...southeast winds 5 to 15 knots becoming east 15 to
20 knots. waves 1 to 3 feet. 
.saturday night...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. rain.
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 and
increasing to 15 to 20 knots. showers likely monday night. waves
1 foot or less building to 1 to 3 feet. 
.tuesday...west winds 15 to 20 knots becoming north 10 to
15 knots. showers likely during the day, then a chance of showers
tuesday night. waves 2 to 4 feet. 
.wednesday...north winds 5 to 15 knots becoming northeast. waves
1 to 3 feet. 

$$

fzus61 kcle 091935
glfle 
expires:202610100215;;812187

open lake forecast for lake erie
national weather service cleveland oh
335 pm edt fri oct 9 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...
the remnant low of isaias 29.80 inches will move northeast into 
the ohio valley saturday night into sunday and exit east of the 
mid-atlantic coast by monday. a cold front will cross the lake 
tuesday into wednesday. 


lez162-163-100215-
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-
335 pm edt fri oct 9 2026

.tonight...east winds 5 to 15 knots becoming southeast. waves
2 feet or less. 
.saturday...southeast winds around 10 knots. waves 2 feet or
less. 
.saturday night...southeast winds 10 to 15 knots increasing to
15 to 20 knots. rain overnight. waves 1 to 3 feet. 
.sunday...southeast winds 15 to 20 knots becoming east 5 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.
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 15 to 20 knots becoming north 10 to
15 knots. a chance of showers during the day. waves 1 to 3 feet. 
.wednesday...north winds 10 to 15 knots becoming east. a chance
of showers wednesday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 091935
glfle 
expires:202610100215;;812188

open lake forecast for lake erie
national weather service cleveland oh
335 pm edt fri oct 9 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...
the remnant low of isaias 29.80 inches will move northeast into 
the ohio valley saturday night into sunday and exit east of the 
mid-atlantic coast by monday. a cold front will cross the lake 
tuesday into wednesday. 


lez164>166-100215-
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-
335 pm edt fri oct 9 2026

.tonight...east winds 5 to 10 knots becoming southeast. waves
2 feet or less. 
.saturday...southeast winds 10 to 15 knots. waves 1 to 2 feet. 
.saturday night...southeast winds 10 to 15 knots increasing to
15 to 20 knots. rain overnight. waves 1 to 3 feet building to
2 to 4 feet. 
.sunday...southeast winds 15 to 20 knots diminishing to 10 to
15 knots. rain. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday night...east winds 5 to 10 knots becoming northwest. a
chance of rain in the evening. waves 1 to 3 feet. 
.monday...northwest 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 2 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 10 to 15 knots becoming east. a chance
of showers wednesday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 091935
glfle 
expires:202610100215;;812189

open lake forecast for lake erie
national weather service cleveland oh
335 pm edt fri oct 9 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...
the remnant low of isaias 29.80 inches will move northeast into 
the ohio valley saturday night into sunday and exit east of the 
mid-atlantic coast by monday. a cold front will cross the lake 
tuesday into wednesday. 


lez061-167>169-100215-
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-
335 pm edt fri oct 9 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 091955
glfsc 
expires:202610100400;;812814

lake st clair forecast
national weather service detroit/pontiac mi
355 pm edt fri oct 9 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 depart from the
eastern great lakes into new england tonight into tomorrow.
remnants from hurricane isaias will then work its way up into the
ohio valley tomorrow, producing breezy southeast flow across the
great lakes.


lcz460-100400-
lake st clair-
355 pm edt fri oct 9 2026

.tonight...southeast winds 5 to 10 knots increasing to 10 to 15
knots after midnight. partly cloudy. waves 2 feet or less.
.saturday...southeast winds 10 to 15 knots. partly sunny. waves 2
feet or less.
.saturday night...southeast winds 10 to 15 knots. mostly cloudy.
waves 2 feet or less.
.sunday...southeast winds 10 to 15 knots. rain until late
afternoon...then 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 northwest 5 to 10 knots
after midnight. mostly cloudy with a chance of light rain early in
the evening...then partly cloudy in the late evening and overnight.
waves 2 feet or less.
.monday...west winds 5 to 10 knots becoming southwest 10 to 15 knots
in the afternoon and evening. partly sunny becoming mostly sunny in
the afternoon becoming partly cloudy. 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 15 to 20 knots. partly cloudy. waves 2
feet or less.

$$

fzus63 kdtx 091954
glflh 
expires:202610100400;;812811

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 pm edt fri oct 9 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 depart from the
eastern great lakes into new england tonight into tomorrow.
remnants from hurricane isaias will then work its way up into the
ohio valley tomorrow, producing breezy southeast flow across the
great lakes.


lhz463-464-100400-
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 pm edt fri oct 9 2026

.rest of tonight...north winds 5 to 10 knots veering to the east
in the evening...then becoming southeast 10 to 15 knots after
midnight. waves 1 to 3 feet. 
.saturday...southeast winds 15 to 20 knots. waves 3 to 5 feet. 
.saturday night...southeast winds 15 to 20 knots. waves 3 to
5 feet. 
.sunday...southeast winds 10 to 15 knots. a chance of rain. waves
2 to 4 feet subsiding to 1 to 3 feet early in the afternoon. 
.sunday night...southeast winds 5 to 10 knots early in the
evening becoming light and variable. waves 2 feet or less. 
.monday...west winds 5 to 10 knots becoming southwest 10 to
15 knots. a chance of rain late in the afternoon. rain likely
late in the evening. waves 2 feet or less. 
.tuesday...west winds 15 to 20 knots veering to the north. 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 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet . 


$$

fzus63 kdtx 091954
glflh 
expires:202610100400;;812810

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 pm edt fri oct 9 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 depart from the
eastern great lakes into new england tonight into tomorrow.
remnants from hurricane isaias will then work its way up into the
ohio valley tomorrow, producing breezy southeast flow across the
great lakes.


lhz363-462-100400-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
354 pm edt fri oct 9 2026

.rest of tonight...north winds 5 to 10 knots veering to the east
this evening...then becoming southeast 10 to 15 knots after
midnight. waves 1 to 3 feet. 
.saturday...southeast winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late morning and
afternoon. waves 3 to 5 feet. 
.saturday night...south winds 15 to 20 knots. gusts to 30 knots .
waves 4 to 6 feet. waves occasionally around 8 feet. 
.sunday...southeast winds 10 to 15 knots. a chance of rain. waves
2 to 4 feet. 
.sunday night...southeast winds 5 to 10 knots veering to the
southwest after midnight. waves 1 to 3 feet. 
.monday...west winds 5 to 10 knots becoming southwest 15 to
20 knots. a chance of rain 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...north winds 15 to 20 knots decreasing to 10 to
15 knots by midnight. rain likely early in the morning. waves
3 to 5 feet. 
.wednesday...north winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then becoming northeast 10 to
15 knots by midnight. waves 2 to 4 feet subsiding to 1 to 3 feet.


$$

fzus63 kdtx 091954
glflh 
expires:202610100400;;812809

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 pm edt fri oct 9 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 depart from the
eastern great lakes into new england tonight into tomorrow.
remnants from hurricane isaias will then work its way up into the
ohio valley tomorrow, producing breezy southeast flow across the
great lakes.


lhz361-362-100400-
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 pm edt fri oct 9 2026

.rest of tonight...northwest winds 5 to 10 knots late in the
afternoon becoming light and variable...then becoming east 5 to
10 knots after midnight becoming southeast 10 to 15 knots. waves
2 feet or less. 
.saturday...southeast winds 15 to 20 knots increasing to 20 to
25 knots with gusts to 35 knot gales in the late morning and
afternoon. waves 3 to 5 feet building to 5 to 7 feet in the
afternoon. waves occasionally around 10 feet. 
.saturday night...south winds 20 to 25 knots with gusts to
35 knot gales decreasing to 15 to 20 knots with gusts to around
30 knots in the late evening and overnight. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.sunday...south winds 10 to 15 knots. waves 3 to 5 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 south 10 to
15 knots late in the afternoon. rain likely late in the
afternoon. 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 . waves 2 to 4 feet. 
.wednesday...north winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kmkx 091945
glflm 
expires:202610100315;;812567

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
245 pm cdt fri oct 9 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 
through this evening. will see winds become more southeasterly 
and then shift more southerly overnight as the high pressure 
shifts further east while low pressure around 29.2 inches develops
over the northern plains. expect winds to increase for saturday 
as lake michigan sits in between the two systems and has the 
potential to produce southerly gusts up to 30 knots through early 
sunday morning. while cannot rule out a few, brief gale force 
gusts across the northern portions of the lake saturday afternoon 
and evening, we are not anticipating any gale headlines at this 
time through the weekend. 

as the main low pressure weakens to around 29.6 inches as it 
lifts ontario into james bay region, expect it to drag a cold 
front across the upper great lakes later sunday into monday, 
easing southerly winds before shifting more westerly then 
northerly later monday into tuesday. could see another round of 
gusty sub-gale wind gusts overnight into tuesday across the region
behind the cold frontal passage, but will gradually ease through 
midweek as another high pressure around 30.2 inches builds across 
the upper great lakes region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-100315-
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-
245 pm cdt fri oct 9 2026

sheboygan wi to pentwater mi south...

.tonight...southeast winds 10 to 20 kt becoming south 15 to
25 kt. slight chance of showers this evening. waves 2 to 4 ft
building to 4 to 6 ft occasionally to 8 ft. 
.saturday...south winds to 30 kt. waves 4 to 7 ft occasionally to
9 ft building to 6 to 9 ft occasionally to 12 ft. 
.saturday night...southeast winds to 30 kt diminishing to 10 to
20 kt. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...southeast winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.sunday night...south winds 10 to 15 kt. waves 1 to 3 ft. 
.monday...south winds 10 to 20 kt becoming southwest 15 to 25 kt.
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 increasing to 30 kt. waves
6 to 9 ft occasionally to 12 ft. 
.wednesday...northeast winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmkx 091945
glflm 
expires:202610100315;;812566

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
245 pm cdt fri oct 9 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 
through this evening. will see winds become more southeasterly 
and then shift more southerly overnight as the high pressure 
shifts further east while low pressure around 29.2 inches develops
over the northern plains. expect winds to increase for saturday 
as lake michigan sits in between the two systems and has the 
potential to produce southerly gusts up to 30 knots through early 
sunday morning. while cannot rule out a few, brief gale force 
gusts across the northern portions of the lake saturday afternoon 
and evening, we are not anticipating any gale headlines at this 
time through the weekend. 

as the main low pressure weakens to around 29.6 inches as it 
lifts ontario into james bay region, expect it to drag a cold 
front across the upper great lakes later sunday into monday, 
easing southerly winds before shifting more westerly then 
northerly later monday into tuesday. could see another round of 
gusty sub-gale wind gusts overnight into tuesday across the region
behind the cold frontal passage, but will gradually ease through 
midweek as another high pressure around 30.2 inches builds across 
the upper great lakes region.


lmz261-362-364-366-563-565-567-868-100315-
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-
245 pm cdt fri oct 9 2026

sheboygan wi to pentwater mi north...

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

$$

fzus63 kmqt 092002
glfls 
expires:202610100800;;813049

open lake forecast for lake superior
national weather service marquette mi
402 pm edt fri oct 9 2026

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

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

.synopsis...

a 30.2 inch surface high continues to expand over the ohio river 
valley this afternoon, resulting in 30.1 inch ridging over lake 
superior. this ridge is separating a pair of 29.4 inch lows, one 
over southern alberta and one off the labrador coast. throughout the 
day and into saturday morning, the high will build to 30.4 inches 
over new york as the alberta low moves to southern saskatchewan and 
the north plains. meanwhile, 29.7 inch hurricane isaias will move up 
the alabama/mississippi state line, eventually helping to kick the 
high east as it weakens. by early sunday morning, the canada low 
will split into 2 weaker 29.6 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. 
meanwhile, the high will shift to the new england coastline then 
over the atlantic, ushered east by the tropical remnants at 29.8 
inches as they move into the ne conus. the colorado low crosses the 
great lakes basin early next week, followed by 30.2 inch high 
pressure for the midweek.




lsz162-100800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
402 pm edt fri oct 9 2026 /302 pm cdt fri oct 9 2026/

.late this afternoon...east winds 15 to 25 knots. waves 1 to
3 feet building to 2 to 4 feet. 
.tonight...east winds 15 to 25 knots veering southeast after
midnight, then diminishing to 10 to 20 knots late. waves building
to 3 to 6 feet occasionally to 8 feet, then subsiding to 2 to
4 feet. 
.saturday...southeast 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. 
.saturday night...south winds 20 to 30 knots veering southwest
after midnight, then diminishing to 15 to 25 knots late. waves
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
2 to 4 feet. 
.sunday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.sunday night...northeast winds 10 to 20 knots increasing to
20 to 30 knots after midnight. a 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 5 to 9 feet occasionally to 11 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 north 5 to
15 knots. waves subsiding to calm to 2 feet. 
.wednesday...east winds 5 to 15 knots increasing to 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 092002
glfls 
expires:202610100800;;813050

open lake forecast for lake superior
national weather service marquette mi
402 pm edt fri oct 9 2026

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

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

.synopsis...

a 30.2 inch surface high continues to expand over the ohio river 
valley this afternoon, resulting in 30.1 inch ridging over lake 
superior. this ridge is separating a pair of 29.4 inch lows, one 
over southern alberta and one off the labrador coast. throughout the 
day and into saturday morning, the high will build to 30.4 inches 
over new york as the alberta low moves to southern saskatchewan and 
the north plains. meanwhile, 29.7 inch hurricane isaias will move up 
the alabama/mississippi state line, eventually helping to kick the 
high east as it weakens. by early sunday morning, the canada low 
will split into 2 weaker 29.6 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. 
meanwhile, the high will shift to the new england coastline then 
over the atlantic, ushered east by the tropical remnants at 29.8 
inches as they move into the ne conus. the colorado low crosses the 
great lakes basin early next week, followed by 30.2 inch high 
pressure for the midweek.




lsz263-100800-
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 pm edt fri oct 9 2026

.late this afternoon...east winds 10 to 20 knots. waves calm to
2 feet. 
.tonight...east winds 20 to 30 knots becoming southeast 15 to
25 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.saturday...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. 
.saturday night...south winds 20 to 30 knots veering southwest
late. waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.sunday night...northeast 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. 
.monday...northeast gales to 35 knots. a chance of showers. waves
building to 5 to 9 feet occasionally to 11 feet. 
.monday night...northeast winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of rain showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.wednesday...east winds 5 to 15 knots becoming southeast 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 092002
glfls 
expires:202610100800;;813051

open lake forecast for lake superior
national weather service marquette mi
402 pm edt fri oct 9 2026

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

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

.synopsis...

a 30.2 inch surface high continues to expand over the ohio river 
valley this afternoon, resulting in 30.1 inch ridging over lake 
superior. this ridge is separating a pair of 29.4 inch lows, one 
over southern alberta and one off the labrador coast. throughout the 
day and into saturday morning, the high will build to 30.4 inches 
over new york as the alberta low moves to southern saskatchewan and 
the north plains. meanwhile, 29.7 inch hurricane isaias will move up 
the alabama/mississippi state line, eventually helping to kick the 
high east as it weakens. by early sunday morning, the canada low 
will split into 2 weaker 29.6 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. 
meanwhile, the high will shift to the new england coastline then 
over the atlantic, ushered east by the tropical remnants at 29.8 
inches as they move into the ne conus. the colorado low crosses the 
great lakes basin early next week, followed by 30.2 inch high 
pressure for the midweek.




lsz264-100800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
402 pm edt fri oct 9 2026

.late this afternoon...southeast winds 10 to 20 knots. waves calm
to 2 feet. 
.tonight...southeast winds 15 to 25 knots increasing to 20 to
30 knots after midnight. waves building to 4 to 7 feet
occasionally to 9 feet. 
.saturday...southeast winds to 30 knots with a few gale force
gusts to 40 knots possible becoming south 20 to 30 knots late.
waves building to 5 to 9 feet occasionally to 11 feet. 
.saturday night...south winds 20 to 30 knots veering southwest
after midnight, then diminishing to 15 to 25 knots late. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.sunday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid 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 3 to 6 feet
occasionally to 8 feet. 
.monday...northeast gales to 35 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 2 to 4 feet. 
.tuesday...north 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 southeast
10 to 20 knots. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 092002
glfls 
expires:202610100800;;813052

open lake forecast for lake superior
national weather service marquette mi
402 pm edt fri oct 9 2026

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

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

.synopsis...

a 30.2 inch surface high continues to expand over the ohio river 
valley this afternoon, resulting in 30.1 inch ridging over lake 
superior. this ridge is separating a pair of 29.4 inch lows, one 
over southern alberta and one off the labrador coast. throughout the 
day and into saturday morning, the high will build to 30.4 inches 
over new york as the alberta low moves to southern saskatchewan and 
the north plains. meanwhile, 29.7 inch hurricane isaias will move up 
the alabama/mississippi state line, eventually helping to kick the 
high east as it weakens. by early sunday morning, the canada low 
will split into 2 weaker 29.6 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. 
meanwhile, the high will shift to the new england coastline then 
over the atlantic, ushered east by the tropical remnants at 29.8 
inches as they move into the ne conus. the colorado low crosses the 
great lakes basin early next week, followed by 30.2 inch high 
pressure for the midweek.




lsz265-100800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
402 pm edt fri oct 9 2026

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

$$

fzus63 kmqt 092002
glfls 
expires:202610100800;;813053

open lake forecast for lake superior
national weather service marquette mi
402 pm edt fri oct 9 2026

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

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

.synopsis...

a 30.2 inch surface high continues to expand over the ohio river 
valley this afternoon, resulting in 30.1 inch ridging over lake 
superior. this ridge is separating a pair of 29.4 inch lows, one 
over southern alberta and one off the labrador coast. throughout the 
day and into saturday morning, the high will build to 30.4 inches 
over new york as the alberta low moves to southern saskatchewan and 
the north plains. meanwhile, 29.7 inch hurricane isaias will move up 
the alabama/mississippi state line, eventually helping to kick the 
high east as it weakens. by early sunday morning, the canada low 
will split into 2 weaker 29.6 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. 
meanwhile, the high will shift to the new england coastline then 
over the atlantic, ushered east by the tropical remnants at 29.8 
inches as they move into the ne conus. the colorado low crosses the 
great lakes basin early next week, followed by 30.2 inch high 
pressure for the midweek.




lsz266-100800-
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 pm edt fri oct 9 2026

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

$$

fzus63 kmqt 092002
glfls 
expires:202610100800;;813054

open lake forecast for lake superior
national weather service marquette mi
402 pm edt fri oct 9 2026

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

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

.synopsis...

a 30.2 inch surface high continues to expand over the ohio river 
valley this afternoon, resulting in 30.1 inch ridging over lake 
superior. this ridge is separating a pair of 29.4 inch lows, one 
over southern alberta and one off the labrador coast. throughout the 
day and into saturday morning, the high will build to 30.4 inches 
over new york as the alberta low moves to southern saskatchewan and 
the north plains. meanwhile, 29.7 inch hurricane isaias will move up 
the alabama/mississippi state line, eventually helping to kick the 
high east as it weakens. by early sunday morning, the canada low 
will split into 2 weaker 29.6 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. 
meanwhile, the high will shift to the new england coastline then 
over the atlantic, ushered east by the tropical remnants at 29.8 
inches as they move into the ne conus. the colorado low crosses the 
great lakes basin early next week, followed by 30.2 inch high 
pressure for the midweek.




lsz267-100800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
402 pm edt fri oct 9 2026

.late this afternoon...east winds less than 10 knots. waves calm
to 2 feet. 
.tonight...southeast winds 5 to 15 knots increasing to 20 to
30 knots. waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday...southeast winds to 30 knots with a few gale force
gusts to 40 knots possible becoming south to 30 knots with a few
gale force gusts to 35 knots possible late. waves building to
6 to 9 feet occasionally to 11 feet, then subsiding to 4 to
7 feet occasionally to 9 feet. 
.saturday night...south winds 20 to 30 knots. waves subsiding to
3 to 6 feet occasionally to 8 feet. 
.sunday...south winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...south winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves building to 2 to 4 feet. 
.monday...northeast winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. a chance of showers. waves building to
4 to 8 feet occasionally to 10 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 6 feet occasionally to 8 feet. 
.tuesday...north winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.wednesday...north winds 10 to 20 knots veering southeast. waves
building to 1 to 3 feet. 

$$