fzus61 kbuf 272002
glflo 
expires:202609280300;;155471

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun sep 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 29.5 inch low near the jersey shore tonight will move 
slowly northeast along the new england coast through tuesday while 
filling to 29.8 inches. this low will finally dissipate over the 
north atlantic wednesday as a 30.1 inch high builds to just off the 
mid atlantic coast. a cold front over the upper great lakes 
wednesday night will cross the lower great lakes thursday night. a 
30.4 inch high is then forecast to build into the upper great lakes 
friday and the lower great lakes by saturday.


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

.tonight...northeast winds 15 to 20 knots diminishing to 10 to
15 knots. showers likely early, then a chance of showers from
late evening on. waves 3 to 6 feet. 
.monday...northeast winds 5 to 15 knots becoming north less than
10 knots. waves 1 to 3 feet. 
.monday night...west winds less than 10 knots becoming northwest.
waves 1 foot or less. 
.tuesday...light and variable winds. waves 1 foot or less. 
.tuesday night...southeast winds less than 10 knots becoming
southwest. waves 1 foot or less. 
.wednesday...southwest winds 5 to 10 knots becoming south. waves
1 foot or less. 
.thursday...southwest winds 10 to 15 knots becoming west. a
chance of showers thursday night. waves 1 to 3 feet. 
.friday...west winds 10 to 15 knots becoming northwest. a chance
of showers during the day. waves 1 to 3 feet. 

$$

fzus61 kbuf 272002
glflo 
expires:202609280300;;155472

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun sep 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 29.5 inch low near the jersey shore tonight will move 
slowly northeast along the new england coast through tuesday while 
filling to 29.8 inches. this low will finally dissipate over the 
north atlantic wednesday as a 30.1 inch high builds to just off the 
mid atlantic coast. a cold front over the upper great lakes 
wednesday night will cross the lower great lakes thursday night. a 
30.4 inch high is then forecast to build into the upper great lakes 
friday and the lower great lakes by saturday.


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

.tonight...northeast winds 15 to 25 knots diminishing to 10 to
15 knots. showers early, then a chance of showers late this
evening. waves 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet. 
.monday...northeast winds 5 to 15 knots. waves 1 to 3 feet. 
.monday night...north winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...north winds 10 knots or less becoming northwest. waves
1 foot or less. 
.tuesday night...light and variable winds becoming south 5 to
10 knots. waves 1 foot or less. 
.wednesday...south winds 5 to 15 knots. waves 2 feet or less. 
.thursday...south winds 10 to 15 knots becoming west 15 to
20 knots. a chance of showers thursday night. waves 1 to 3 feet
building to 2 to 4 feet. 
.friday...northwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers during the day. waves 2 to 4 feet. 

$$

fzus61 kcle 271938
glfle 
expires:202609280215;;154755

open lake forecast for lake erie
national weather service cleveland oh
338 pm edt sun sep 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 of 30.20 inches will persist over the great lakes 
through tuesday before beginning to build off to the east
wednesday. a weak cold front will approach the region from the 
west thursday night.


lez164>167-280215-
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-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
338 pm edt sun sep 27 2026

.tonight...north winds 15 to 20 knots becoming northeast 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.monday...north winds 5 to 15 knots. waves 1 to 3 feet. 
.monday night...north winds less than 10 knots becoming west.
waves 1 foot or less. 
.tuesday...west winds less than 10 knots. waves 1 foot or less. 
.tuesday night...south winds 10 knots or less. waves 1 foot or
less. 
.wednesday...south winds 5 to 15 knots. waves 2 feet or less. 
.thursday...south winds 15 to 20 knots becoming northwest. a
chance of showers. waves 1 to 3 feet. 
.friday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. a chance of showers during the day. waves 1 to 3 feet. 

$$

fzus61 kcle 271938
glfle 
expires:202609280215;;154756

open lake forecast for lake erie
national weather service cleveland oh
338 pm edt sun sep 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 of 30.20 inches will persist over the great lakes 
through tuesday before beginning to build off to the east
wednesday. a weak cold front will approach the region from the 
west thursday night.


lez061-168-169-280215-
ripley to buffalo ny extending from 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-
338 pm edt sun sep 27 2026

.tonight...northeast winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...northeast winds 5 to 15 knots becoming north less than
10 knots. a slight chance of showers early. waves 1 to 3 feet
subsiding to 1 foot or less. 
.monday night...north winds less than 10 knots. waves 1 foot or
less. 
.tuesday...southwest winds less than 10 knots becoming west.
waves 1 foot or less. 
.tuesday night...light and variable winds becoming south 5 to
10 knots. waves 1 foot or less. 
.wednesday...south winds 5 to 15 knots. waves 2 feet or less. 
.thursday...south winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of showers thursday night. waves 1 to 3 feet. 
.friday...northwest winds 10 to 15 knots becoming north. a chance
of showers during the day. waves 1 to 3 feet. 

$$

fzus61 kcle 271938
glfle 
expires:202609280215;;154754

open lake forecast for lake erie
national weather service cleveland oh
338 pm edt sun sep 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 of 30.20 inches will persist over the great lakes 
through tuesday before beginning to build off to the east
wednesday. a weak cold front will approach the region from the 
west thursday night.


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-
338 pm edt sun sep 27 2026

.tonight...north winds 10 to 15 knots. waves 1 to 3 feet. 
.monday...north winds 5 to 15 knots diminishing to less than
10 knots. waves 2 feet or less. 
.monday night...north winds less than 10 knots. waves 1 foot or
less. 
.tuesday...light and variable winds. waves 1 foot or less. 
.tuesday night...southeast winds 5 to 10 knots becoming south.
waves 1 foot or less. 
.wednesday...south winds 5 to 15 knots. waves 1 foot or less. 
.thursday...southwest winds 10 to 15 knots becoming northwest. a
chance of showers during the day, then showers likely thursday
night. waves 1 to 2 feet. 
.friday...northwest winds 10 to 15 knots becoming north. a chance
of showers during the day. waves 1 to 3 feet. 

$$

fzus63 kdtx 271949
glfsc 
expires:202609280400;;155011

lake st clair forecast
national weather service detroit/pontiac mi
349 pm edt sun sep 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, 30.30 inches, holds over the great
lakes through tuesday. this will maintain light winds and dry
weather through this period. a warm front will bring the next
chance for showers and thunderstorms wednesday and thursday.


lcz460-280400-
lake st clair-
349 pm edt sun sep 27 2026

.tonight...north winds 10 to 15 knots. clear. waves 2 feet or less.
.monday...north winds 5 to 10 knots. mostly sunny. waves 2 feet or
less.
.monday night...north winds 5 to 10 knots becoming light and
variable. clear. patchy fog after midnight. waves 2 feet or less.
.tuesday...light and variable winds becoming southeast 5 to 10 knots
early in the afternoon. mostly sunny. patchy fog until late
afternoon. waves nearly calm.
.tuesday night...south winds 5 to 10 knots. mostly clear. waves 2
feet or less.
.wednesday...south winds 5 to 10 knots increasing to 10 to 15 knots
in the evening. partly cloudy. waves 2 feet or less.
.thursday...west winds 10 to 15 knots. mostly cloudy. showers
likely. waves 2 feet or less.
.friday...north winds 15 to 20 knots. partly cloudy. showers likely.
waves 2 feet or less.

$$

fzus63 kdtx 271949
glflh 
expires:202609280400;;155007

open lake forecast for lake huron
national weather service detroit/pontiac mi
349 pm edt sun sep 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, 30.30 inches, holds over the great
lakes through tuesday. this will maintain light winds and dry
weather through this period. a warm front will bring the next
chance for showers and thunderstorms wednesday and thursday.


lhz361-280400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
349 pm edt sun sep 27 2026

.tonight...light and variable winds becoming northwest 5 to
10 knots after midnight. waves 2 feet or less. 
.monday...north winds 5 to 10 knots in the morning becoming light
and variable. waves 2 feet or less. 
.monday night...light and variable winds. waves 2 feet or less. 
.tuesday...light and variable winds becoming southeast 5 to
10 knots early in the afternoon. patchy fog in the morning. waves
2 feet or less. 
.tuesday night...southeast winds 5 to 10 knots veering to the
south after midnight. waves 2 feet or less. 
.wednesday...south winds 5 to 10 knots. a chance of showers.
waves 2 feet or less. 
.thursday...southwest winds 10 to 15 knots veering to the west .
showers likely early in the morning...then a chance of showers
early in the evening. waves 1 to 3 feet. 
.friday...northwest winds 10 to 15 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 271949
glflh 
expires:202609280400;;155008

open lake forecast for lake huron
national weather service detroit/pontiac mi
349 pm edt sun sep 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, 30.30 inches, holds over the great
lakes through tuesday. this will maintain light winds and dry
weather through this period. a warm front will bring the next
chance for showers and thunderstorms wednesday and thursday.


lhz362-363-280400-
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-
349 pm edt sun sep 27 2026

.tonight...north winds 5 to 10 knots. waves 2 feet or less. 
.monday...north winds 5 to 10 knots. patchy fog in the morning.
waves 2 feet or less. 
.monday night...light and variable winds. waves 2 feet or less. 
.tuesday...light and variable winds becoming southeast 5 to
10 knots early in the afternoon. waves 2 feet or less. 
.tuesday night...southeast winds 10 to 15 knots becoming south
5 to 10 knots after midnight. waves 1 to 3 feet. 
.wednesday...south winds 5 to 10 knots increasing to 10 to
15 knots. a chance of showers. waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots becoming west 15 to
20 knots early in the evening...then veering to the northwest by
midnight. a chance of showers early in the morning...then showers
likely until early evening. a chance of showers by midnight.
waves 1 to 3 feet building to 2 to 4 feet . 
.friday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then
increasing to 15 to 20 knots early in the evening decreasing to
10 to 15 knots by midnight. a chance of showers early in the
morning. waves 2 to 4 feet subsiding to 1 to 3 feet . 


$$

fzus63 kdtx 271949
glflh 
expires:202609280400;;155009

open lake forecast for lake huron
national weather service detroit/pontiac mi
349 pm edt sun sep 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, 30.30 inches, holds over the great
lakes through tuesday. this will maintain light winds and dry
weather through this period. a warm front will bring the next
chance for showers and thunderstorms wednesday and thursday.


lhz462>464-280400-
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-
349 pm edt sun sep 27 2026

.tonight...north winds 15 to 20 knots decreasing to 5 to
10 knots. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.monday...north winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon. waves 1 to 3 feet. 
.monday night...north winds 5 to 10 knots  becoming light and
variable. waves 2 feet or less. 
.tuesday...light and variable winds. patchy fog in the afternoon.
waves 2 feet or less. 
.tuesday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots in the late evening and overnight. waves 2 feet or
less. 
.wednesday...south winds 5 to 10 knots increasing to 10 to
15 knots. a chance of showers late in the evening. waves 1 to
3 feet. 
.thursday...southwest winds 10 to 15 knots becoming northwest
15 to 20 knots by midnight. a chance of showers early in the
morning. a chance of showers . waves 1 to 3 feet building to 2 to
4 feet by midnight. 
.friday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots. a chance of showers until afternoon. waves 2 to 4 feet.


$$

fzus63 kmkx 271944
glflm 
expires:202609280315;;154980

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
244 pm cdt sun sep 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 30.1 inches will remain overhead through at least 
monday, keeping the weather dry and winds on the lighter side 
early this week.

breezy southerly winds are expected tuesday into thursday, as high 
pressure departs to the east ahead of an approaching trough. wind 
gusts to 25 knots are possible along with building waves, 
particularly across central and northern portions of the lake.


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-
244 pm cdt sun sep 27 2026

sheboygan wi to pentwater mi south...

.tonight...north winds 10 to 15 kt diminishing to 5 to 10 kt.
waves 1 to 3 ft. 
.monday...north winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 to 2 ft. 
.monday night...north winds 10 to 15 kt becoming northeast late
in the evening, then becoming south after midnight becoming south
less than 10 kt late. waves 1 to 2 ft. 
.tuesday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 2 to 4 ft. 
.tuesday night...south winds 10 to 20 kt. chance of showers
overnight. waves 3 to 5 ft. 
.wednesday...south winds 15 to 25 kt. chance of showers. waves
4 to 7 ft occasionally to 9 ft. 
.wednesday night...south winds 15 to 25 kt diminishing to 10 to
20 kt. chance of showers. waves 4 to 6 ft occasionally to 8 ft. 
.thursday...southwest winds 15 to 25 kt becoming west. showers
likely. waves 4 to 6 ft occasionally to 8 ft. 
.friday...north winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmkx 271944
glflm 
expires:202609280315;;154979

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
244 pm cdt sun sep 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 30.1 inches will remain overhead through at least 
monday, keeping the weather dry and winds on the lighter side 
early this week.

breezy southerly winds are expected tuesday into thursday, as high 
pressure departs to the east ahead of an approaching trough. wind 
gusts to 25 knots are possible along with building waves, 
particularly across central and northern portions of the lake.


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-
244 pm cdt sun sep 27 2026

sheboygan wi to pentwater mi north...

.tonight...northwest winds 10 to 15 kt becoming north. waves 1 to
2 ft. 
.monday...north winds 5 to 10 kt becoming northwest. waves 1 ft
or less. 
.monday night...northwest winds 5 to 10 kt backing to south.
waves 1 ft or less. 
.tuesday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 2 to 4 ft. 
.tuesday night...south winds 10 to 20 kt. chance of showers
overnight. waves 3 to 5 ft. 
.wednesday...south winds 15 to 25 kt increasing to 30 kt. chance
of showers. waves 4 to 7 ft occasionally to 9 ft. 
.wednesday night...south winds 15 to 25 kt becoming southwest.
showers likely. waves 4 to 6 ft occasionally to 8 ft subsiding to
3 to 5 ft. 
.thursday...southwest winds 15 to 25 kt becoming northwest to
30 kt. chance of showers. waves 3 to 5 ft. 
.friday...northwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft.  

$$

fzus63 kmqt 272002
glfls 
expires:202609280800;;155400

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun sep 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...

a 30.3 high over the canadian maritimes will continue to push east 
with the trailing high pressure, at 30.1 inches, lingering over lake 
superior through monday evening. thereafter a 29.7 inch trough will 
build into the plains with lake superior remaining between the 
trough and high pressure over the eastern u.s. the trough will shift 
to the western part of the lake by wednesday night as a 29.3 inch 
low moves from the canadian prairies to the hudson bay. behind the 
trough high pressure of 30.4 inches develops over the central plains 
thursday night into friday, extending 30.2 inch ridging over the 
lake.




lsz162-280800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt sun sep 27 2026 /301 pm cdt sun sep 27 2026/

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight, then veering north late. patchy fog after midnight.
waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots veering east in the
afternoon, then backing northeast late. patchy fog through early
afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots veering south late. a
chance of showers after midnight. waves calm to 2 feet. 
.tuesday...south winds 10 to 20 knots becoming southwest 15 to
25 knots by mid afternoon. a chance of showers through early
afternoon, then showers likely by mid afternoon. waves building
to 1 to 3 feet. 
.tuesday night...south winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a chance of showers. waves subsiding to
calm to 2 feet. 
.wednesday...south winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. a chance of showers. waves calm to
2 feet. 
.wednesday night...southwest winds 10 to 20 knots veering west
after midnight. a chance of showers. waves calm to 2 feet. 
.thursday...west winds 15 to 25 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.friday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves calm to 2 feet. 

$$

fzus63 kmqt 272002
glfls 
expires:202609280800;;155401

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun sep 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...

a 30.3 high over the canadian maritimes will continue to push east 
with the trailing high pressure, at 30.1 inches, lingering over lake 
superior through monday evening. thereafter a 29.7 inch trough will 
build into the plains with lake superior remaining between the 
trough and high pressure over the eastern u.s. the trough will shift 
to the western part of the lake by wednesday night as a 29.3 inch 
low moves from the canadian prairies to the hudson bay. behind the 
trough high pressure of 30.4 inches develops over the central plains 
thursday night into friday, extending 30.2 inch ridging over the 
lake.




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-
401 pm edt sun sep 27 2026

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...southwest winds 5 to 15 knots becoming west less than
10 knots after midnight, then becoming north 5 to 15 knots late.
patchy fog after midnight. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then increasing to 5 to 15 knots late.
patchy fog through early afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots veering southeast after
midnight, then becoming south 10 to 20 knots late. a slight
chance of showers after midnight. waves building to 1 to 3 feet. 
.tuesday...south winds 15 to 25 knots veering southwest by mid
afternoon. a slight chance of showers through early afternoon,
then showers likely by mid afternoon. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.tuesday night...southwest winds 10 to 20 knots becoming south
5 to 15 knots after midnight. a chance of showers. waves
subsiding to calm to 2 feet. 
.wednesday...south winds 10 to 20 knots veering southwest by mid
afternoon. a chance of showers. waves calm to 2 feet. 
.wednesday night...southwest winds 5 to 15 knots becoming west
10 to 20 knots after midnight. a chance of showers. waves
building to 1 to 3 feet. 
.thursday...west winds 20 to 30 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.friday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 272002
glfls 
expires:202609280800;;155402

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun sep 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...

a 30.3 high over the canadian maritimes will continue to push east 
with the trailing high pressure, at 30.1 inches, lingering over lake 
superior through monday evening. thereafter a 29.7 inch trough will 
build into the plains with lake superior remaining between the 
trough and high pressure over the eastern u.s. the trough will shift 
to the western part of the lake by wednesday night as a 29.3 inch 
low moves from the canadian prairies to the hudson bay. behind the 
trough high pressure of 30.4 inches develops over the central plains 
thursday night into friday, extending 30.2 inch ridging over the 
lake.




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

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...southwest winds 5 to 15 knots becoming west less than
10 knots after midnight, then becoming north 5 to 15 knots late.
patchy fog after midnight. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots becoming northeast less than
10 knots in the afternoon, then veering east late. patchy dense
fog through early afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots veering south late.
waves calm to 2 feet. 
.tuesday...south winds 10 to 20 knots. a chance of showers. waves
building to 1 to 3 feet. 
.tuesday night...south winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a chance of showers. waves 1 to 3 feet. 
.wednesday...south winds 5 to 15 knots. a chance of showers.
waves subsiding to calm to 2 feet. 
.wednesday night...southwest winds 5 to 15 knots becoming west
10 to 20 knots after midnight. a chance of showers. waves
building to 1 to 3 feet. 
.thursday...west gales to 35 knots diminishing to 20 to 30 knots.
waves building to 3 to 6 feet occasionally to 8 feet. 
.friday...west winds 20 to 30 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 272002
glfls 
expires:202609280800;;155403

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun sep 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...

a 30.3 high over the canadian maritimes will continue to push east 
with the trailing high pressure, at 30.1 inches, lingering over lake 
superior through monday evening. thereafter a 29.7 inch trough will 
build into the plains with lake superior remaining between the 
trough and high pressure over the eastern u.s. the trough will shift 
to the western part of the lake by wednesday night as a 29.3 inch 
low moves from the canadian prairies to the hudson bay. behind the 
trough high pressure of 30.4 inches develops over the central plains 
thursday night into friday, extending 30.2 inch ridging over the 
lake.




lsz265-280800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt sun sep 27 2026

.late this afternoon...east winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...southwest winds 5 to 15 knots veering northwest late.
waves calm to 2 feet. 
.monday...north winds 5 to 15 knots veering east late. waves calm
to 2 feet. 
.monday night...southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves calm to 2 feet. 
.tuesday...south winds 15 to 25 knots. a slight chance of showers
by mid afternoon. waves building to 1 to 3 feet. 
.tuesday night...south winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. showers likely. waves subsiding to calm
to 2 feet. 
.wednesday...south winds 10 to 20 knots. a chance of showers.
waves calm to 2 feet. 
.wednesday night...south winds 10 to 20 knots becoming west 15 to
25 knots after midnight. a chance of showers. waves building to
1 to 3 feet. 
.thursday...west gales to 40 knots. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.friday...northwest gales to 35 knots becoming west 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 272002
glfls 
expires:202609280800;;155404

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun sep 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...

a 30.3 high over the canadian maritimes will continue to push east 
with the trailing high pressure, at 30.1 inches, lingering over lake 
superior through monday evening. thereafter a 29.7 inch trough will 
build into the plains with lake superior remaining between the 
trough and high pressure over the eastern u.s. the trough will shift 
to the western part of the lake by wednesday night as a 29.3 inch 
low moves from the canadian prairies to the hudson bay. behind the 
trough high pressure of 30.4 inches develops over the central plains 
thursday night into friday, extending 30.2 inch ridging over the 
lake.




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-
401 pm edt sun sep 27 2026

.late this afternoon...east winds less than 10 knots. waves calm
to 2 feet. 
.tonight...northeast winds less than 10 knots backing west after
midnight, then becoming northwest 5 to 15 knots late. waves calm
to 2 feet. 
.monday...north winds 5 to 15 knots diminishing to less than
10 knots in the afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots veering south after
midnight, then increasing to 10 to 20 knots late. waves calm to
2 feet. 
.tuesday...south winds 15 to 25 knots. a slight chance of showers
by mid afternoon. waves building to 2 to 4 feet. 
.tuesday night...south winds 15 to 25 knots. showers likely
through midnight, then a chance of showers after midnight. waves
subsiding to 1 to 3 feet. 
.wednesday...south winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. a chance of showers. waves subsiding
to calm to 2 feet. 
.wednesday night...south winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. a chance of showers. waves
building to 1 to 3 feet. 
.thursday...west gales to 40 knots becoming northwest 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. 
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 272002
glfls 
expires:202609280800;;155405

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sun sep 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...

a 30.3 high over the canadian maritimes will continue to push east 
with the trailing high pressure, at 30.1 inches, lingering over lake 
superior through monday evening. thereafter a 29.7 inch trough will 
build into the plains with lake superior remaining between the 
trough and high pressure over the eastern u.s. the trough will shift 
to the western part of the lake by wednesday night as a 29.3 inch 
low moves from the canadian prairies to the hudson bay. behind the 
trough high pressure of 30.4 inches develops over the central plains 
thursday night into friday, extending 30.2 inch ridging over the 
lake.




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

.late this afternoon...north winds less than 10 knots. waves calm
to 2 feet. 
.tonight...northeast winds less than 10 knots becoming northwest
5 to 15 knots after midnight, then veering north late. waves calm
to 2 feet. 
.monday...north winds 5 to 15 knots backing northwest late. waves
calm to 2 feet. 
.monday night...northwest winds 5 to 15 knots becoming west less
than 10 knots after midnight, then backing south late. waves calm
to 2 feet. 
.tuesday...south winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves building to 1 to 3 feet. 
.tuesday night...south winds 15 to 25 knots. a chance of showers.
waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.wednesday...south winds 10 to 20 knots. a chance of showers.
waves subsiding to calm to 2 feet. 
.wednesday night...south winds 15 to 25 knots veering southwest
after midnight. a chance of showers through midnight, then
showers likely after midnight. waves building to 1 to 3 feet. 
.thursday...west gales to 35 knots becoming northwest 20 to
30 knots. a chance of showers. waves building to 4 to 8 feet
occasionally to 10 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 1 to 3 feet. 

$$