fzus61 kbuf 290802
glflo 
expires:202510291500;;949942

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt wed oct 29 2025

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...expansive 30.5 inch high over central quebec will slowly 
weaken and pull northward today through tonight. a 29.6 inch low 
will then approach the lake from the south later tonight into 
thursday while strengthening to 29.4 inches by late thursday. the 
low will then move over or just east of the lake thursday night 
while continuing to strengthen, before tracking northeast of the 
lake on friday and into the canadian maritimes by saturday, 
deepening to 28.7 inches by saturday. a large 30.4 inch surface high 
will then build across the ohio valley and lower great lakes region 
through sunday.


loz062-291500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt wed oct 29 2025

.today...east winds 15 to 20 knots diminishing to 10 to 15 knots.
waves 3 to 5 feet subsiding to 2 to 4 feet. 
.tonight...east winds 10 to 15 knots. a chance of showers late.
waves 2 to 3 feet. 
.thursday...east winds 15 to 25 knots becoming northeast to
30 knots. rain. waves 2 to 3 feet building to 9 to 12 feet. waves
occasionally around 15 feet. 
.thursday night...northeast winds to 30 knots becoming north.
rain. waves 8 to 12 feet subsiding to 6 to 9 feet. waves
occasionally around 15 feet. 
.friday...west gales to 35 knots diminishing to 30 knots. rain
during the day, then showers likely friday night. waves 7 to
10 feet building to 10 to 14 feet. waves occasionally around
18 feet. 
.saturday...northwest winds to 30 knots diminishing to 10 to
15 knots. a chance of showers. waves 7 to 10 feet subsiding to
1 to 3 feet. waves occasionally around 13 feet. 
.sunday...northwest winds 10 to 15 knots becoming southwest 15 to
20 knots. a chance of showers during the day, then showers likely
sunday night. waves 1 to 3 feet building to 2 to 4 feet. 

$$

fzus61 kbuf 290802
glflo 
expires:202510291500;;949943

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt wed oct 29 2025

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...expansive 30.5 inch high over central quebec will slowly 
weaken and pull northward today through tonight. a 29.6 inch low 
will then approach the lake from the south later tonight into 
thursday while strengthening to 29.4 inches by late thursday. the 
low will then move over or just east of the lake thursday night 
while continuing to strengthen, before tracking northeast of the 
lake on friday and into the canadian maritimes by saturday, 
deepening to 28.7 inches by saturday. a large 30.4 inch surface high 
will then build across the ohio valley and lower great lakes region 
through sunday.


loz063>065-291500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt wed oct 29 2025

.today...east winds 5 to 15 knots becoming northeast. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tonight...northeast winds 5 to 10 knots becoming southeast. a
chance of showers late. waves 2 feet or less. 
.thursday...southeast winds 10 to 15 knots becoming northeast and
increasing to 30 knots in the afternoon. rain. waves 1 to 3 feet
building to 7 to 10 feet. waves occasionally around 13 feet. 
.thursday night...northeast winds to 30 knots becoming north.
rain. waves 7 to 11 feet subsiding to 6 to 9 feet. waves
occasionally around 14 feet. 
.friday...northwest winds to 30 knots becoming west and
increasing to 35 knot gales. rain during the day, then showers
friday night. waves 7 to 10 feet building to 12 to 17 feet. waves
occasionally around 22 feet. 
.saturday...northwest winds to 30 knots diminishing to 10 to
15 knots. showers likely during the day, then a chance of showers
saturday night. waves 10 to 13 feet subsiding to 2 to 4 feet.
waves occasionally around 16 feet. 
.sunday...northwest winds 10 to 15 knots becoming southwest 15 to
20 knots. a chance of showers during the day, then showers likely
sunday night. waves 1 to 3 feet building to 2 to 4 feet. 

$$

fzus61 kcle 290821
glfle 
expires:202510291445;;951345

open lake forecast for lake erie
national weather service cleveland oh
421 am edt wed oct 29 2025

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...
low pressure 29.60 inches will deepen to 29.40 inches as it moves
to the upper ohio valley by thursday afternoon. the system will
continue to deepen as it merges with a coastal low over the new 
england states on friday before departing for the weekend, leaving
a trough averaging 30.00 inches across the region.


lez164>166-291445-
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-
421 am edt wed oct 29 2025

...gale watch in effect from thursday morning through thursday
evening...

.today...east winds 15 to 25 knots. waves 3 to 5 feet building to
4 to 7 feet. waves occasionally around 9 feet. 
.tonight...east winds 20 to 25 knots. a chance of rain late in
the evening. rain after midnight. waves 4 to 7 feet. waves
occasionally around 9 feet. 
.thursday...northeast winds to 30 knots becoming north and
increasing to 35 knot gales in the afternoon. rain. waves 6 to
9 feet building to 9 to 13 feet. waves occasionally around
16 feet. 
.thursday night...north gales to 35 knots becoming northwest and
diminishing to 30 knots overnight. rain. waves 10 to 13 feet
subsiding to 7 to 11 feet. waves occasionally around 16 feet. 
.friday...west gales to 35 knots diminishing to 30 knots. rain
likely. waves 7 to 11 feet subsiding to 6 to 9 feet. waves
occasionally around 14 feet. 
.saturday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of rain. waves 4 to 7 feet subsiding to 1 to
2 feet. waves occasionally around 9 feet. 
.sunday...west winds 10 to 15 knots becoming southwest and
increasing to 30 knots. a chance of rain. waves 1 to 3 feet
building to 4 to 7 feet. waves occasionally around 9 feet. 

$$

fzus61 kcle 290821
glfle 
expires:202510291445;;951344

open lake forecast for lake erie
national weather service cleveland oh
421 am edt wed oct 29 2025

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...
low pressure 29.60 inches will deepen to 29.40 inches as it moves
to the upper ohio valley by thursday afternoon. the system will
continue to deepen as it merges with a coastal low over the new 
england states on friday before departing for the weekend, leaving
a trough averaging 30.00 inches across the region.


lez162-163-291445-
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-
421 am edt wed oct 29 2025

.today...east winds 15 to 25 knots. waves 2 to 4 feet building to
3 to 6 feet. 
.tonight...northeast winds 15 to 25 knots. a chance of rain late
in the evening. rain likely after midnight. waves 4 to 7 feet.
waves occasionally around 9 feet. 
.thursday...northeast winds to 30 knots becoming north. rain.
waves 5 to 8 feet building to 7 to 10 feet. waves occasionally
around 13 feet. 
.thursday night...north winds to 30 knots becoming northwest.
rain likely in the evening, then a chance of rain overnight.
waves 5 to 8 feet subsiding to 3 to 6 feet. waves occasionally
around 10 feet. 
.friday...west winds 15 to 25 knots. waves 3 to 5 feet subsiding
to 2 to 4 feet. 
.saturday...west winds 5 to 15 knots. waves 1 to 3 feet subsiding
to 1 foot or less. 
.sunday...west winds 5 to 15 knots becoming southwest 15 to
20 knots. a chance of rain sunday night. waves 2 feet or less
building to 2 to 4 feet. 

$$

fzus61 kcle 290821
glfle 
expires:202510291445;;951346

open lake forecast for lake erie
national weather service cleveland oh
421 am edt wed oct 29 2025

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...
low pressure 29.60 inches will deepen to 29.40 inches as it moves
to the upper ohio valley by thursday afternoon. the system will
continue to deepen as it merges with a coastal low over the new 
england states on friday before departing for the weekend, leaving
a trough averaging 30.00 inches across the region.


lez061-167>169-291445-
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-
421 am edt wed oct 29 2025

...gale watch in effect from thursday morning through thursday
evening...

.today...east winds 15 to 25 knots becoming northeast. waves 2 to
4 feet building to 3 to 6 feet. 
.tonight...east winds 15 to 25 knots. a chance of rain late in
the evening. rain after midnight. waves 4 to 7 feet subsiding to
3 to 6 feet. waves occasionally around 9 feet. 
.thursday...northeast winds to 30 knots increasing to 35 knot
gales in the afternoon. rain. waves 5 to 8 feet building to 10 to
13 feet. waves occasionally around 16 feet. 
.thursday night...northeast winds to 30 knots becoming northwest.
rain. waves 9 to 12 feet subsiding to 7 to 10 feet. waves
occasionally around 15 feet. 
.friday...west gales to 35 knots diminishing to 30 knots. rain.
waves 7 to 10 feet building to 9 to 12 feet, then subsiding to
6 to 9 feet. waves occasionally around 15 feet. 
.saturday...west winds 15 to 25 knots becoming northwest and
diminishing to around 10 knots. rain likely. waves 4 to 7 feet
subsiding to 1 to 3 feet. waves occasionally around 9 feet. 
.sunday...west winds 5 to 15 knots becoming southwest and
increasing to 30 knots. rain likely. waves 1 to 3 feet building
to 4 to 7 feet. waves occasionally around 9 feet. 

$$

fzus63 kdtx 290736
glfsc 
expires:202510291545;;949060

lake st clair forecast
national weather service detroit/pontiac mi
336 am edt wed oct 29 2025

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, 30.50 inches, centered over quebec will
maintain influence across the region through early today. low
pressure, 29.40 inches, then lifts out of the tennessee valley
into the far eastern great lakes late week bringing stronger
northerly winds.


lcz460-291545-
lake st clair-
336 am edt wed oct 29 2025

.today...northeast winds 10 to 20 knots. sunny. waves 1 to 3 
feet.
.tonight...northeast winds 10 to 15 knots increasing to 15 to 20
knots after midnight. partly cloudy until early morning...then
cloudy with a chance of light showers early in the morning. waves 1
to 3 feet.
.thursday...northeast winds 20 to 25 knots. gusts to 30 knots early
in the afternoon. light showers likely until late afternoon...then
showers early in the afternoon. waves 2 to 4 feet.
.thursday night...north winds to 30 knots becoming northwest 20 to
25 knots after midnight. mostly cloudy. showers likely until early
morning...then a chance of light showers after midnight. waves 2 to
4 feet.
.friday...west winds 20 to 25 knots diminishing to 15 to 20 knots in
the evening. partly sunny with a chance of light showers.. then
partly cloudy in the evening. waves 1 to 3 feet.
.saturday...northwest winds 15 to 20 knots. partly cloudy. waves 2
feet or less.
.sunday...south winds 10 to 15 knots. partly cloudy. a chance of
light showers. waves 2 feet or less.

$$

fzus63 kdtx 290736
glflh 
expires:202510291545;;949054

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 am edt wed oct 29 2025

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, 30.50 inches, centered over quebec will
maintain influence across the region through early today. low
pressure, 29.40 inches, then lifts out of the tennessee valley
into the far eastern great lakes late week bringing stronger
northerly winds.


lhz361-291545-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
336 am edt wed oct 29 2025

.today...east winds 10 to 15 knots becoming northeast in the 
afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet late in the 
afternoon. 
.tonight...northeast winds 5 to 10 knots until early morning
becoming light and variable. waves 2 feet or less. 
.thursday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...north winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet. 
.friday...north winds 15 to 20 knots. gusts to 30 knots late in
the morning. a chance of showers late in the evening. waves 3 to
5 feet building to 4 to 6 feet late in the afternoon. waves
occasionally around 8 feet. 
.saturday...north winds 10 to 15 knots becoming northwest 5 to
10 knots until early morning. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.sunday...west winds 5 to 10 knots becoming southwest 10 to
15 knots early in the evening...then increasing to 15 to 20 knots
in the late evening and early morning. showers likely until early
morning. waves 1 to 3 feet. 


$$

fzus63 kdtx 290736
glflh 
expires:202510291545;;949055

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 am edt wed oct 29 2025

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, 30.50 inches, centered over quebec will
maintain influence across the region through early today. low
pressure, 29.40 inches, then lifts out of the tennessee valley
into the far eastern great lakes late week bringing stronger
northerly winds.


lhz362-363-462-291545-
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-
lake huron from port austin to harbor beach beyond 5nm off shore-
336 am edt wed oct 29 2025

.today...east winds 15 to 20 knots. waves 3 to 5 feet. 
.tonight...northeast winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet early in the morning. 
.thursday...northeast winds 10 to 15 knots increasing to 15 to
20 knots early in the afternoon. a chance of showers in the
afternoon. waves 1 to 3 feet building to 3 to 5 feet in the late
morning and afternoon. 
.thursday night...north winds 15 to 20 knots increasing to 20 to
25 knots after midnight. a chance of showers. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.friday...northwest winds 20 to 25 knots with gusts to around
30 knots increasing to 30 knots late in the morning...then
decreasing to 20 to 25 knots with gusts to around 30 knots late
in the afternoon decreasing to 15 to 20 knots late in the
evening. a chance of showers. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.saturday...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. a chance of showers until early morning. waves 4 to
6 feet subsiding to 2 to 4 feet in the late evening and early
morning. waves occasionally around 8 feet. 
.sunday...west winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and early afternoon...then backing to the
southwest early in the evening increasing to 15 to 20 knots in
the late evening and early morning. a chance of showers early in
the morning. a chance of showers until early morning. waves 1 to
3 feet building to 3 to 5 feet in the late evening and early
morning. 


$$

fzus63 kdtx 290736
glflh 
expires:202510291545;;949056

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 am edt wed oct 29 2025

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, 30.50 inches, centered over quebec will
maintain influence across the region through early today. low
pressure, 29.40 inches, then lifts out of the tennessee valley
into the far eastern great lakes late week bringing stronger
northerly winds.


lhz463-464-291545-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
336 am edt wed oct 29 2025

.today...east winds 10 to 20 knots backing to the northeast late 
in the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet in 
the late morning and afternoon. 
.tonight...east winds 10 to 15 knots. waves 1 to 3 feet. 
.thursday...northeast winds 10 to 15 knots increasing to 20 to
25 knots with gusts to around 30 knots. a chance of showers in
the morning...then showers likely in the afternoon. waves 2 to
4 feet building to 4 to 6 feet early in the afternoon. waves
occasionally around 8 feet. 
.thursday night...north winds 20 to 25 knots backing to the
northwest after midnight. gusts to 30 knots. showers likely.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.friday...northwest winds to 30 knots decreasing to 15 to
20 knots. a chance of showers. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.saturday...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. a chance of showers. waves 4 to 6 feet subsiding to
2 to 4 feet in the late evening and early morning. waves
occasionally around 8 feet. 
.sunday...west winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and early afternoon...then backing to the
southwest early in the evening increasing to 15 to 20 knots in
the late evening and early morning. a chance of showers early in
the morning. a chance of showers until early morning. waves 1 to
3 feet building to 2 to 4 feet in the late evening and early
morning. 


$$

fzus63 kmkx 290808
glflm 
expires:202510291530;;950578

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
308 am cdt wed oct 29 2025

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...

strong high pressure around 30.5 inches will gradually shift 
northeast of quebec today. meanwhile, low pressure around 29.6 
inches will shift slowly east across tennessee today. this low 
will then shift northeast through the mid-atlantic and northeast 
thursday and friday and strengthen to around 29.0 inches. 

gusty east winds will become northeast today, turning north on 
thursday and eventually northwest thursday night into friday. 
gales are not anticipated today, as winds are expected to peak 
around 30 knots across southern portions of the lake. modest
northwest to north winds are then anticipated into saturday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-291530-
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-
308 am cdt wed oct 29 2025

sheboygan wi to pentwater mi south...

.today...east winds to 30 kt becoming northeast 15 to 25 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.tonight...northeast winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft. 
.thursday...northeast winds 10 to 20 kt becoming north 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft. 
.thursday night...northwest winds 15 to 25 kt diminishing to
10 to 20 kt. chance of rain. waves 4 to 7 ft occasionally to
9 ft. 
.friday...northwest winds 15 to 25 kt. chance of rain in the
morning. waves 5 to 8 ft occasionally to 10 ft. 
.friday night...northwest winds 10 to 20 kt. chance of rain.
waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.saturday...northwest winds 10 to 20 kt. chance of rain. waves
4 to 6 ft occasionally to 8 ft. 
.sunday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmkx 290808
glflm 
expires:202510291530;;950577

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
308 am cdt wed oct 29 2025

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...

strong high pressure around 30.5 inches will gradually shift 
northeast of quebec today. meanwhile, low pressure around 29.6 
inches will shift slowly east across tennessee today. this low 
will then shift northeast through the mid-atlantic and northeast 
thursday and friday and strengthen to around 29.0 inches. 

gusty east winds will become northeast today, turning north on 
thursday and eventually northwest thursday night into friday. 
gales are not anticipated today, as winds are expected to peak 
around 30 knots across southern portions of the lake. modest
northwest to north winds are then anticipated into saturday.


lmz261-362-364-366-563-565-567-868-291530-
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-
308 am cdt wed oct 29 2025

sheboygan wi to pentwater mi north...

.today...east winds 10 to 20 kt becoming northeast. waves 3 to
5 ft subsiding to 2 to 4 ft. 
.tonight...northeast winds 10 to 20 kt diminishing to 5 to 10 kt.
waves 2 to 4 ft. 
.thursday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 2 to 4 ft. 
.thursday night...north winds 10 to 20 kt. waves 2 to 4 ft. 
.friday...north winds 10 to 20 kt becoming northwest 15 to 25 kt.
waves 3 to 5 ft. 
.friday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. chance of rain. waves 3 to 5 ft. 
.saturday...north winds 10 to 20 kt. chance of rain. waves 2 to
4 ft. 
.sunday...southwest winds 10 to 20 kt increasing to 30 kt. chance
of rain. waves 1 to 3 ft building to 4 to 7 ft occasionally to
9 ft.  

$$

fzus63 kmqt 290801
glfls 
expires:202510292000;;949845

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed oct 29 2025

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 30.3 inch ridge persists over lake superior through this morning 
while a 29.6 inch low organizes over western tennessee. ridging then 
dissipates through thursday while a 29.9 inch low approaches lake 
superior from the canadian prairie and the southeastern low deepens 
to 29.5 inches near maryland. the weak low phases with the east 
coast low thursday night while it deepens to 29.2 inches, reaching 
new england. the low rapidly deepens to 28.8 inches friday as it 
lifts over new england. the low departs to the east on saturday 
while high pressure of 30.2 to 30.3 inches settles southeast over 
the plains and midwest. this high settles further south on sunday as 
a 29.2 inch low travels into hudson bay, dragging a 29.9 inch trough 
over lake superior on monday.



lsz265-292000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt wed oct 29 2025

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

$$

fzus63 kmqt 290801
glfls 
expires:202510292000;;949846

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed oct 29 2025

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 30.3 inch ridge persists over lake superior through this morning 
while a 29.6 inch low organizes over western tennessee. ridging then 
dissipates through thursday while a 29.9 inch low approaches lake 
superior from the canadian prairie and the southeastern low deepens 
to 29.5 inches near maryland. the weak low phases with the east 
coast low thursday night while it deepens to 29.2 inches, reaching 
new england. the low rapidly deepens to 28.8 inches friday as it 
lifts over new england. the low departs to the east on saturday 
while high pressure of 30.2 to 30.3 inches settles southeast over 
the plains and midwest. this high settles further south on sunday as 
a 29.2 inch low travels into hudson bay, dragging a 29.9 inch trough 
over lake superior on monday.



lsz266-292000-
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 wed oct 29 2025

.early this morning...southeast winds 5 to 15 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.today...east winds 5 to 15 knots backing northeast late. waves
subsiding to calm to 2 feet. 
.tonight...north winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...north winds 10 to 20 knots. a slight chance of
showers after midnight. waves building to 1 to 3 feet. 
.friday...north winds 15 to 25 knots increasing to 20 to 30 knots
by mid afternoon. a chance of showers. waves building to 3 to
6 feet occasionally to 8 feet. 
.friday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. rain showers likely through midnight. a
chance of rain showers after midnight. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.saturday...north winds 10 to 20 knots becoming west 5 to
15 knots. a chance of rain showers. waves subsiding to calm to
2 feet. 
.sunday...southwest winds 15 to 25 knots increasing to 20 to
30 knots. a chance of rain showers, then rain showers likely.
waves building to 5 to 8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 290801
glfls 
expires:202510292000;;949843

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed oct 29 2025

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 30.3 inch ridge persists over lake superior through this morning 
while a 29.6 inch low organizes over western tennessee. ridging then 
dissipates through thursday while a 29.9 inch low approaches lake 
superior from the canadian prairie and the southeastern low deepens 
to 29.5 inches near maryland. the weak low phases with the east 
coast low thursday night while it deepens to 29.2 inches, reaching 
new england. the low rapidly deepens to 28.8 inches friday as it 
lifts over new england. the low departs to the east on saturday 
while high pressure of 30.2 to 30.3 inches settles southeast over 
the plains and midwest. this high settles further south on sunday as 
a 29.2 inch low travels into hudson bay, dragging a 29.9 inch trough 
over lake superior on monday.



lsz263-292000-
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 wed oct 29 2025

.early this morning...southeast winds less than 10 knots. waves
1 to 3 feet. 
.today...southeast winds less than 10 knots backing northeast in
the afternoon, then increasing to 5 to 15 knots late. waves
subsiding to calm to 2 feet. 
.tonight...northeast winds less than 10 knots veering east after
midnight, then backing northwest late. waves calm to 2 feet. 
.thursday...north winds less than 10 knots backing northwest in
the afternoon. waves calm to 2 feet. 
.thursday night...north winds less than 10 knots increasing to
5 to 15 knots after midnight. a slight chance of showers after
midnight. waves calm to 2 feet. 
.friday...north winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. a chance of rain showers. waves building to
2 to 4 feet. 
.friday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves 2 to 4 feet. 
.saturday...north winds 5 to 15 knots backing southwest. waves
subsiding to calm to 2 feet. 
.sunday...southwest gales to 35 knots veering west. a chance of
rain showers. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 290801
glfls 
expires:202510292000;;949842

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed oct 29 2025

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 30.3 inch ridge persists over lake superior through this morning 
while a 29.6 inch low organizes over western tennessee. ridging then 
dissipates through thursday while a 29.9 inch low approaches lake 
superior from the canadian prairie and the southeastern low deepens 
to 29.5 inches near maryland. the weak low phases with the east 
coast low thursday night while it deepens to 29.2 inches, reaching 
new england. the low rapidly deepens to 28.8 inches friday as it 
lifts over new england. the low departs to the east on saturday 
while high pressure of 30.2 to 30.3 inches settles southeast over 
the plains and midwest. this high settles further south on sunday as 
a 29.2 inch low travels into hudson bay, dragging a 29.9 inch trough 
over lake superior on monday.



lsz162-292000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt wed oct 29 2025 /301 am cdt wed oct 29 2025/

.early this morning...east winds 5 to 15 knots. waves calm to
2 feet. 
.today...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots becoming north less than
10 knots after midnight, then backing northwest late. waves calm
to 2 feet. 
.thursday...northwest winds less than 10 knots backing west in
the afternoon, then becoming southwest 5 to 15 knots late. waves
calm to 2 feet. 
.thursday night...north winds less than 10 knots increasing to
5 to 15 knots after midnight. a slight chance of rain showers
after midnight. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet. 
.friday night...north winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of rain showers. waves calm to
2 feet. 
.saturday...north winds 5 to 15 knots backing southwest. waves
calm to 2 feet. 
.sunday...southwest winds 20 to 30 knots veering west. a chance
of rain showers. waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 290801
glfls 
expires:202510292000;;949847

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed oct 29 2025

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 30.3 inch ridge persists over lake superior through this morning 
while a 29.6 inch low organizes over western tennessee. ridging then 
dissipates through thursday while a 29.9 inch low approaches lake 
superior from the canadian prairie and the southeastern low deepens 
to 29.5 inches near maryland. the weak low phases with the east 
coast low thursday night while it deepens to 29.2 inches, reaching 
new england. the low rapidly deepens to 28.8 inches friday as it 
lifts over new england. the low departs to the east on saturday 
while high pressure of 30.2 to 30.3 inches settles southeast over 
the plains and midwest. this high settles further south on sunday as 
a 29.2 inch low travels into hudson bay, dragging a 29.9 inch trough 
over lake superior on monday.



lsz267-292000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am edt wed oct 29 2025

.early this morning...east winds 10 to 20 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.today...east winds 10 to 20 knots becoming northeast 5 to
15 knots in the afternoon, then backing north late. waves calm to
2 feet. 
.tonight...north winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves building to 2 to 4 feet. 
.friday...north winds 15 to 25 knots increasing to 20 to 30 knots
by mid afternoon. a chance of showers. waves building to 3 to
6 feet occasionally to 8 feet. 
.friday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. rain showers likely through midnight,
then a chance of rain showers after midnight. waves subsiding to
2 to 4 feet. 
.saturday...north winds 10 to 20 knots becoming northwest 5 to
15 knots. a chance of rain showers. waves subsiding to calm to
2 feet. 
.sunday...southwest winds 15 to 25 knots increasing to 20 to
30 knots. a chance of rain showers, then rain showers likely.
waves building to 4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 290801
glfls 
expires:202510292000;;949844

open lake forecast for lake superior
national weather service marquette mi
401 am edt wed oct 29 2025

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 30.3 inch ridge persists over lake superior through this morning 
while a 29.6 inch low organizes over western tennessee. ridging then 
dissipates through thursday while a 29.9 inch low approaches lake 
superior from the canadian prairie and the southeastern low deepens 
to 29.5 inches near maryland. the weak low phases with the east 
coast low thursday night while it deepens to 29.2 inches, reaching 
new england. the low rapidly deepens to 28.8 inches friday as it 
lifts over new england. the low departs to the east on saturday 
while high pressure of 30.2 to 30.3 inches settles southeast over 
the plains and midwest. this high settles further south on sunday as 
a 29.2 inch low travels into hudson bay, dragging a 29.9 inch trough 
over lake superior on monday.



lsz264-292000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am edt wed oct 29 2025

.early this morning...southeast winds 5 to 15 knots. waves 2 to
4 feet. 
.today...southeast winds less than 10 knots backing east in the
afternoon. waves subsiding to calm to 2 feet. 
.tonight...northeast winds less than 10 knots veering east after
midnight, then backing north late. waves calm to 2 feet. 
.thursday...north winds less than 10 knots backing northwest in
the afternoon. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots veering northeast
after midnight. a slight chance of showers after midnight. waves
building to 1 to 3 feet. 
.friday...northeast winds 10 to 20 knots becoming north 15 to
25 knots by mid afternoon. a chance of showers. waves building to
3 to 5 feet occasionally to 7 feet. 
.friday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to 2 to 4 feet. 
.saturday...north winds 5 to 15 knots backing southwest. waves
subsiding to calm to 2 feet. 
.sunday...southwest winds 20 to 30 knots becoming west gales to
35 knots. a chance of rain showers. waves building to 6 to 9 feet
occasionally to 11 feet. 

$$