fzus61 kbuf 272003
glflo 
expires:202610280300;;818591

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue oct 27 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 ridge averaging 30.6 inches affects the lake through 
thursday as the embedded high pressure center wobbles southeastward 
from northern ontario to north atlantic waters southeast of the 
canadian maritimes. the ridge exits eastward thursday night as a 
cold front sweeps eastward across the lake. behind the front, 
another ridge averaging 30.2 inches builds from the western great 
lakes through this saturday. the high will drift eastward while a 
29.9 inch low is expected to move into the lower mississippi valley 
sunday.


loz062-280300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt tue oct 27 2026

.tonight...east winds 10 to 15 knots. waves 1 to 3 feet. 
.wednesday...east winds 5 to 15 knots diminishing to less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.wednesday night...east winds 10 knots or less becoming
southwest. waves 1 foot or less. 
.thursday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. waves 2 feet or less building to 3 to 5 feet. 
.thursday night...southwest winds 15 to 20 knots becoming
northwest 10 to 15 knots. a chance of showers. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.friday...west winds 15 to 20 knots becoming northwest 5 to
15 knots. waves 1 to 3 feet. 
.saturday...northwest winds less than 10 knots becoming east.
waves 1 foot or less. 
.sunday...east winds 10 knots or less becoming south. a chance of
showers sunday night. waves 1 foot or less. 

$$

fzus61 kbuf 272003
glflo 
expires:202610280300;;818592

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue oct 27 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 ridge averaging 30.6 inches affects the lake through 
thursday as the embedded high pressure center wobbles southeastward 
from northern ontario to north atlantic waters southeast of the 
canadian maritimes. the ridge exits eastward thursday night as a 
cold front sweeps eastward across the lake. behind the front, 
another ridge averaging 30.2 inches builds from the western great 
lakes through this saturday. the high will drift eastward while a 
29.9 inch low is expected to move into the lower mississippi valley 
sunday.


loz063>065-280300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt tue oct 27 2026

.tonight...northeast winds 10 knots or less becoming southeast
10 to 15 knots. waves 2 feet or less. 
.wednesday...southeast winds 5 to 10 knots. waves 2 feet or less.
.wednesday night...southeast winds 5 to 15 knots becoming south.
waves 2 feet or less. 
.thursday...south winds 10 to 15 knots becoming southwest. waves
1 to 3 feet. 
.thursday night...southwest winds 15 to 20 knots becoming west. a
chance of showers. waves 2 to 4 feet. 
.friday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.saturday...northwest winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.sunday...southeast winds 5 to 10 knots becoming south. a chance
of showers sunday night. waves 1 foot or less. 

$$

fzus61 kcle 271937
glfle 
expires:202610280215;;817841

open lake forecast for lake erie
national weather service cleveland oh
337 pm edt tue oct 27 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis... 
high pressure 30.50 inches will move off to the new england coast
wednesday. a cold front slides south across lake erie thursday 
night. high pressure of 30.40 inches will build over the eastern 
great lakes again friday into saturday before a warm front lifts
north across the lake on sunday.


lez164>166-280215-
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-
337 pm edt tue oct 27 2026

.tonight...east winds 15 to 20 knots becoming southeast 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...south winds 10 knots or less. waves 2 feet or less. 
.wednesday night...southeast winds 10 knots or less becoming
south 10 to 15 knots. waves 2 feet or less. 
.thursday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.thursday night...southwest winds 10 to 15 knots becoming
northwest. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...north winds 10 knots or less becoming east. waves
2 feet or less. 
.saturday...east winds 5 to 10 knots becoming southeast. waves
2 feet or less. 
.sunday...southeast winds 5 to 10 knots. a chance of showers
sunday night. waves 1 to 2 feet. 

$$

fzus61 kcle 271937
glfle 
expires:202610280215;;817842

open lake forecast for lake erie
national weather service cleveland oh
337 pm edt tue oct 27 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis... 
high pressure 30.50 inches will move off to the new england coast
wednesday. a cold front slides south across lake erie thursday 
night. high pressure of 30.40 inches will build over the eastern 
great lakes again friday into saturday before a warm front lifts
north across the lake on sunday.


lez061-167>169-280215-
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-
337 pm edt tue oct 27 2026

.tonight...east winds 15 to 20 knots becoming southeast 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...south winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.wednesday night...south winds 10 knots or less increasing to
10 to 15 knots. waves 2 feet or less. 
.thursday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.thursday night...southwest winds 10 to 15 knots becoming
northwest. a chance of showers. waves 2 to 4 feet. 
.friday...northwest winds 5 to 10 knots becoming northeast. waves
2 feet or less. 
.saturday...east winds 5 to 10 knots. waves 2 feet or less. 
.sunday...southeast winds 5 to 10 knots. a chance of showers
sunday night. waves 2 feet or less. 

$$

fzus61 kcle 271937
glfle 
expires:202610280215;;817840

open lake forecast for lake erie
national weather service cleveland oh
337 pm edt tue oct 27 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis... 
high pressure 30.50 inches will move off to the new england coast
wednesday. a cold front slides south across lake erie thursday 
night. high pressure of 30.40 inches will build over the eastern 
great lakes again friday into saturday before a warm front lifts
north across the lake on sunday.


lez162-163-280215-
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-
337 pm edt tue oct 27 2026

.tonight...east winds 5 to 15 knots becoming south. waves 1 to
3 feet. 
.wednesday...south winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.wednesday night...southeast winds 5 to 10 knots becoming
southwest. waves 1 foot or less. 
.thursday...southwest winds 10 to 15 knots. waves 1 to 2 feet. 
.thursday night...west winds 5 to 15 knots becoming northwest.
waves 2 feet or less. 
.friday...north winds 10 knots or less becoming east. waves
1 foot or less. 
.saturday...east winds around 10 knots. waves 1 foot or less. 
.sunday...southeast winds around 10 knots. a chance of showers.
waves 1 foot or less. 

$$

fzus63 kdtx 271939
glfsc 
expires:202610280345;;817990

lake st clair forecast
national weather service detroit/pontiac mi
339 pm edt tue oct 27 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, 30.50 inches, will settle over southern
quebec this evening. low pressure is forecast to move across
northern ontario into quebec on thursday, dragging a cold front
across the great lakes. this front will provide the next chance
for light rain.


lcz460-280345-
lake st clair-
339 pm edt tue oct 27 2026

.tonight...east winds 10 to 15 knots becoming southeast 5 to 10
knots early in the morning. mostly cloudy. waves 2 feet or less.
.wednesday...southeast winds 5 to 10 knots early in the morning
becoming light and variable...then becoming south 5 to 10 knots late
in the afternoon. partly sunny until late afternoon then clearing.
waves 2 feet or less.
.wednesday night...south winds 5 to 10 knots becoming southwest 10
to 15 knots after midnight. clear. waves 2 feet or less.
.thursday...southwest winds 10 to 15 knots. mostly sunny. waves 1 to
3 feet.
.thursday night...northwest winds 10 to 15 knots. mostly clear.
waves 2 feet or less.
.friday...northwest winds 5 to 10 knots in the morning becoming
light and variable. sunny becoming mostly sunny in the afternoon
becoming partly cloudy. waves 2 feet or less.
.saturday...east winds 5 to 10 knots. mostly cloudy. waves 2 feet or
less.
.sunday...southeast winds 5 to 10 knots. mostly cloudy with a chance
of light rain. waves 2 feet or less.

$$

fzus63 kdtx 271939
glflh 
expires:202610280345;;817986

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm edt tue oct 27 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, 30.50 inches, will settle over southern
quebec this evening. low pressure is forecast to move across
northern ontario into quebec on thursday, dragging a cold front
across the great lakes. this front will provide the next chance
for light rain.


lhz361-280345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
339 pm edt tue oct 27 2026

.tonight...southeast winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. a chance of rain
after midnight. waves 3 to 5 feet subsiding to 1 to 3 feet early
in the morning. 
.wednesday...southeast winds 10 to 15 knots becoming south 5 to
10 knots in the late morning and early afternoon...then backing
to the northeast late in the afternoon. waves 1 to 3 feet. 
.wednesday night...light and variable winds becoming south 10 to
15 knots by midnight...then increasing to 15 to 20 knots after
midnight. a chance of rain after midnight. waves 1 to 3 feet
building to 2 to 4 feet after midnight. 
.thursday...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and afternoon. a chance of rain.
waves 2 to 4 feet. 
.thursday night...northwest winds 10 to 15 knots becoming west
15 to 20 knots after midnight. waves 2 to 4 feet. 
.friday...west winds 15 to 20 knots becoming light and variable.
waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon.
.saturday...light and variable winds. waves 2 feet or less. 
.sunday...light and variable winds becoming southeast 5 to
10 knots. waves 2 feet or less. 


$$

fzus63 kdtx 271939
glflh 
expires:202610280345;;817987

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm edt tue oct 27 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, 30.50 inches, will settle over southern
quebec this evening. low pressure is forecast to move across
northern ontario into quebec on thursday, dragging a cold front
across the great lakes. this front will provide the next chance
for light rain.


lhz362-363-280345-
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-
339 pm edt tue oct 27 2026

.tonight...southeast winds 10 to 15 knots veering to the south
early in the morning. waves 1 to 3 feet building to 2 to 4 feet
early in the morning. 
.wednesday...south winds 10 to 15 knots. waves 2 to 4 feet. 
.wednesday night...south winds 10 to 15 knots increasing to 15 to
20 knots after midnight. waves 1 to 3 feet building to 3 to
5 feet after midnight. 
.thursday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. a chance of rain. waves 4 to
6 feet. waves occasionally around 8 feet. 
.thursday night...northwest winds 10 to 15 knots. waves 3 to
5 feet. 
.friday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the afternoon. waves 3 to 5 feet subsiding to
1 to 3 feet late in the afternoon. 
.saturday...light and variable winds becoming southeast 5 to
10 knots . waves 2 feet or less. 
.sunday...southeast winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kdtx 271939
glflh 
expires:202610280345;;817988

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm edt tue oct 27 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, 30.50 inches, will settle over southern
quebec this evening. low pressure is forecast to move across
northern ontario into quebec on thursday, dragging a cold front
across the great lakes. this front will provide the next chance
for light rain.


lhz462>464-280345-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
339 pm edt tue oct 27 2026

.tonight...east winds 5 to 10 knots becoming southeast 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet
building to 2 to 4 feet after midnight. 
.wednesday...southeast winds 10 to 15 knots becoming south 5 to
10 knots in the afternoon. waves 1 to 3 feet. 
.wednesday night...south winds 10 to 15 knots. waves 1 to 3 feet.
.thursday...south winds 15 to 20 knots becoming southwest 10 to
15 knots early in the afternoon. a chance of rain. waves 2 to
4 feet. 
.thursday night...northwest winds 10 to 15 knots. waves 1 to
3 feet. 
.friday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then becoming light and variable
late in the afternoon becoming northwest 5 to 10 knots late in
the evening. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...northeast winds 5 to 10 knots veering to the
southeast. waves 2 feet or less. 
.sunday...southeast winds 5 to 10 knots. a chance of rain by
midnight. waves 2 feet or less. 


$$

fzus63 kmkx 271937
glflm 
expires:202610280315;;817845

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
237 pm cdt tue oct 27 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 of 30.5 inches will continue to work east across 
ontario this afternoon and move over new england by wednesday 
morning. meanwhile, broad low pressure of 29.8 inches will move
into the central to northern great plains. moderate southeast
winds will continue through this afternoon and evening, with
winds remaining elevated and becoming southerly during the pre-
dawn hours on wednesday. elevated southerlies persist wednesday,
and will become gusty wednesday night ahead of an approaching
cold front. gusts will stop a couple knots short of gales over 
the northern end of lake michigan, though a few intermittent 
gusts to gale force can't be ruled out.

winds then become southwesterly and come around to northwesterly
following the front. winds then quickly slow behind the front
thursday afternoon and evening as high pressure of 30.2 inches
works in from the central plains.


lmz080-669-671-673-675-777-779-870-872-874-876-878-280315-
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-
237 pm cdt tue oct 27 2026

sheboygan wi to pentwater mi south...

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

$$

fzus63 kmkx 271937
glflm 
expires:202610280315;;817844

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
237 pm cdt tue oct 27 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 of 30.5 inches will continue to work east across 
ontario this afternoon and move over new england by wednesday 
morning. meanwhile, broad low pressure of 29.8 inches will move
into the central to northern great plains. moderate southeast
winds will continue through this afternoon and evening, with
winds remaining elevated and becoming southerly during the pre-
dawn hours on wednesday. elevated southerlies persist wednesday,
and will become gusty wednesday night ahead of an approaching
cold front. gusts will stop a couple knots short of gales over 
the northern end of lake michigan, though a few intermittent 
gusts to gale force can't be ruled out.

winds then become southwesterly and come around to northwesterly
following the front. winds then quickly slow behind the front
thursday afternoon and evening as high pressure of 30.2 inches
works in from the central plains.


lmz261-362-364-366-563-565-567-868-280315-
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-
237 pm cdt tue oct 27 2026

sheboygan wi to pentwater mi north...

.tonight...southeast winds 10 to 20 kt becoming south. chance of
showers this evening. waves 2 to 4 ft. 
.wednesday...south winds 10 to 20 kt. waves 2 to 4 ft. 
.wednesday night...south winds 15 to 25 kt becoming southwest to
30 kt. chance of showers overnight. waves 3 to 5 ft building to
5 to 8 ft occasionally to 10 ft. 
.thursday...southwest winds to 30 kt becoming northwest 10 to
20 kt in the afternoon. waves 5 to 8 ft occasionally to 10 ft
subsiding to 3 to 5 ft. 
.thursday night...northwest winds 10 to 20 kt. waves 1 to 3 ft. 
.friday...northwest winds 10 to 20 kt. waves 1 to 3 ft. 
.friday night...northeast winds 10 to 15 kt becoming east. waves
1 to 2 ft. 
.saturday...southeast winds 10 to 15 kt. waves 1 to 3 ft. 
.sunday...southeast winds 10 to 15 kt becoming east. waves 1 to
2 ft.  

$$

fzus63 kmqt 272001
glfls 
expires:202610280800;;818385

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue oct 27 2026

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

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

.synopsis...

30.5 inch high pressure centered over northern ontario this morning 
shifts east to the saint lawrence seaway this evening, with 30.4 
inch ridging over lake superior weakening to 30.1 inches through 
tonight. a developing 29.8 inch colorado low lifts through the 
plains on wednesday, eventually moving across lake superior 
wednesday night into early thursday morning. high pressure of 30.2 
to 30.3 inches returns to the upper great lakes by friday, 
strengthening to 30.4 inches over the lower great lakes on saturday 
as ridging of 30.1 to 30.2 inches lingers over lake superior through 
the weekend.




lsz162-280800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt tue oct 27 2026 /300 pm cdt tue oct 27 2026/

.late this afternoon...east winds 15 to 25 knots. showers likely.
waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to
4 feet. 
.tonight...southeast winds 5 to 15 knots veering southwest after
midnight. a chance of showers through midnight. patchy drizzle.
waves subsiding to calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing east late. a chance of
showers and a slight chance of thunderstorms by mid afternoon.
waves calm to 2 feet. 
.wednesday night...east winds 10 to 20 knots veering west after
midnight, then increasing to 15 to 25 knots late. showers and a
slight chance of thunderstorms through midnight. waves building
to 1 to 3 feet. 
.thursday...west winds 15 to 25 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.thursday night...west winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.friday...west winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...north winds 5 to 15 knots veering northeast after
midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202610280800;;818386

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue oct 27 2026

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

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

.synopsis...

30.5 inch high pressure centered over northern ontario this morning 
shifts east to the saint lawrence seaway this evening, with 30.4 
inch ridging over lake superior weakening to 30.1 inches through 
tonight. a developing 29.8 inch colorado low lifts through the 
plains on wednesday, eventually moving across lake superior 
wednesday night into early thursday morning. high pressure of 30.2 
to 30.3 inches returns to the upper great lakes by friday, 
strengthening to 30.4 inches over the lower great lakes on saturday 
as ridging of 30.1 to 30.2 inches lingers over lake superior through 
the weekend.




lsz263-280800-
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-
400 pm edt tue oct 27 2026

.late this afternoon...southeast winds 10 to 20 knots. a chance
of showers. waves 2 to 4 feet. 
.tonight...southeast winds 10 to 20 knots veering south after
midnight, then becoming southwest 5 to 15 knots late. a chance of
showers and patchy drizzle through midnight. waves subsiding to
1 to 3 feet. 
.wednesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then backing east late. a chance of
showers by mid afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...southeast winds 10 to 20 knots becoming west
15 to 25 knots after midnight, then diminishing to 10 to 20 knots
late. showers and a slight chance of thunderstorms through
midnight. waves building to 2 to 4 feet. 
.thursday...west winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday night...west winds 10 to 20 knots. waves subsiding to
1 to 3 feet. 
.friday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.friday night...northwest winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.saturday...south winds less than 10 knots. waves calm to 2 feet.
.sunday...southwest winds less than 10 knots becoming east 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202610280800;;818387

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue oct 27 2026

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

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

.synopsis...

30.5 inch high pressure centered over northern ontario this morning 
shifts east to the saint lawrence seaway this evening, with 30.4 
inch ridging over lake superior weakening to 30.1 inches through 
tonight. a developing 29.8 inch colorado low lifts through the 
plains on wednesday, eventually moving across lake superior 
wednesday night into early thursday morning. high pressure of 30.2 
to 30.3 inches returns to the upper great lakes by friday, 
strengthening to 30.4 inches over the lower great lakes on saturday 
as ridging of 30.1 to 30.2 inches lingers over lake superior through 
the weekend.




lsz264-280800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm edt tue oct 27 2026

.late this afternoon...southeast winds 15 to 25 knots. a chance
of showers. waves 2 to 4 feet. 
.tonight...southeast winds 15 to 25 knots veering south after
midnight, then diminishing to 5 to 15 knots late. a chance of
showers through midnight. areas of drizzle. waves building to
3 to 6 feet occasionally to 8 feet, then subsiding to 2 to
4 feet. 
.wednesday...southwest winds 5 to 15 knots. a slight chance of
showers by mid afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...southeast winds 10 to 20 knots becoming west
15 to 25 knots after midnight. showers and a slight chance of
thunderstorms through midnight, then a slight chance of showers
after midnight. waves building to 2 to 4 feet. 
.thursday...west winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.friday...northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.friday night...west winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.saturday...southwest winds less than 10 knots backing south.
waves calm to 2 feet. 
.sunday...southwest winds less than 10 knots becoming northeast
5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202610280800;;818388

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue oct 27 2026

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

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

.synopsis...

30.5 inch high pressure centered over northern ontario this morning 
shifts east to the saint lawrence seaway this evening, with 30.4 
inch ridging over lake superior weakening to 30.1 inches through 
tonight. a developing 29.8 inch colorado low lifts through the 
plains on wednesday, eventually moving across lake superior 
wednesday night into early thursday morning. high pressure of 30.2 
to 30.3 inches returns to the upper great lakes by friday, 
strengthening to 30.4 inches over the lower great lakes on saturday 
as ridging of 30.1 to 30.2 inches lingers over lake superior through 
the weekend.




lsz265-280800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt tue oct 27 2026

.late this afternoon...southeast winds 20 to 30 knots. a slight
chance of showers. waves 2 to 4 feet building to 3 to 5 feet
occasionally to 7 feet. 
.tonight...south winds 15 to 25 knots. a chance of showers
through midnight. waves subsiding to 1 to 3 feet. 
.wednesday...south winds 10 to 20 knots becoming southwest 5 to
15 knots in the afternoon, then backing southeast late. a chance
of showers by mid afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...south winds 15 to 25 knots becoming southwest
to 30 knots with a few gale force gusts to 35 knots possible
after midnight, then becoming west 20 to 30 knots late. showers
and a slight chance of thunderstorms through midnight, then a
slight chance of showers after midnight. waves building to 3 to
5 feet occasionally to 7 feet. 
.thursday...west winds 20 to 30 knots increasing to gales to
35 knots by mid afternoon. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday night...west winds 20 to 30 knots veering northwest
after midnight. waves subsiding to 2 to 4 feet. 
.friday...northwest winds 15 to 25 knots becoming west 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.friday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots backing south. waves
calm to 2 feet. 
.sunday...south winds 5 to 15 knots backing north. waves calm to
2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202610280800;;818389

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue oct 27 2026

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

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

.synopsis...

30.5 inch high pressure centered over northern ontario this morning 
shifts east to the saint lawrence seaway this evening, with 30.4 
inch ridging over lake superior weakening to 30.1 inches through 
tonight. a developing 29.8 inch colorado low lifts through the 
plains on wednesday, eventually moving across lake superior 
wednesday night into early thursday morning. high pressure of 30.2 
to 30.3 inches returns to the upper great lakes by friday, 
strengthening to 30.4 inches over the lower great lakes on saturday 
as ridging of 30.1 to 30.2 inches lingers over lake superior through 
the weekend.




lsz266-280800-
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-
400 pm edt tue oct 27 2026

.late this afternoon...southeast winds 20 to 30 knots. a chance
of showers. waves 2 to 4 feet building to 3 to 5 feet
occasionally to 7 feet. 
.tonight...southeast winds 20 to 30 knots veering south after
midnight, then diminishing to 15 to 25 knots late. a chance of
showers and patchy drizzle through midnight. waves building to
3 to 6 feet occasionally to 8 feet. 
.wednesday...south winds 15 to 25 knots becoming southwest 5 to
15 knots in the afternoon, then backing south late. a slight
chance of showers by mid afternoon. waves subsiding to calm to
2 feet. 
.wednesday night...south winds 15 to 25 knots increasing to 20 to
30 knots after midnight, then veering west late. showers through
midnight. a chance of thunderstorms. a chance of showers after
midnight. waves building to 3 to 6 feet occasionally to 8 feet. 
.thursday...west winds 20 to 30 knots increasing to gales to
35 knots by mid afternoon. waves building to 5 to 8 feet
occasionally to 10 feet. 
.thursday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.friday night...northwest winds 5 to 15 knots backing west after
midnight. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots backing south. waves
calm to 2 feet. 
.sunday...south winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202610280800;;818390

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue oct 27 2026

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

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

.synopsis...

30.5 inch high pressure centered over northern ontario this morning 
shifts east to the saint lawrence seaway this evening, with 30.4 
inch ridging over lake superior weakening to 30.1 inches through 
tonight. a developing 29.8 inch colorado low lifts through the 
plains on wednesday, eventually moving across lake superior 
wednesday night into early thursday morning. high pressure of 30.2 
to 30.3 inches returns to the upper great lakes by friday, 
strengthening to 30.4 inches over the lower great lakes on saturday 
as ridging of 30.1 to 30.2 inches lingers over lake superior through 
the weekend.




lsz267-280800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt tue oct 27 2026

.late this afternoon...southeast winds 20 to 30 knots. waves 3 to
5 feet occasionally to 7 feet. 
.tonight...southeast winds 20 to 30 knots veering south after
midnight. a slight chance of showers and patchy drizzle through
midnight. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 
.wednesday...south winds 15 to 25 knots becoming southwest 10 to
20 knots in the afternoon, then becoming south 5 to 15 knots
late. patchy drizzle through early afternoon. waves subsiding to
calm to 2 feet. 
.wednesday night...south winds 10 to 20 knots increasing to 20 to
30 knots after midnight, then becoming southwest to 30 knots with
a few gale force gusts to 35 knots possible late. a chance of
showers and a slight chance of thunderstorms. waves building to
3 to 6 feet occasionally to 8 feet. 
.thursday...west winds 20 to 30 knots increasing to gales to
35 knots by mid afternoon. waves building to 5 to 8 feet
occasionally to 10 feet. 
.thursday night...northwest winds 20 to 30 knots. waves subsiding
to 4 to 7 feet occasionally to 9 feet. 
.friday...northwest winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.friday night...northwest winds 5 to 15 knots backing west after
midnight. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots backing south. waves
calm to 2 feet. 
.sunday...south winds 5 to 15 knots increasing to 10 to 20 knots.
waves calm to 2 feet. 

$$