fzus61 kbuf 282003
glflo 
expires:202609290300;;209645

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt mon sep 28 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 29.8 inch low just southeast of long island this 
afternoon will continue to drift northeast along the new england 
coast through tuesday while filling to 29.9 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, before exiting into northern maine sunday.


loz062-290300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt mon sep 28 2026

.tonight...west winds less than 10 knots. patchy fog late. waves
1 foot or less. 
.tuesday...northeast winds less than 10 knots becoming east.
patchy fog early. waves 1 foot or less. 
.tuesday night...southeast winds 10 knots or less becoming
southwest. waves 1 foot or less. 
.wednesday...southwest winds 10 knots or less becoming south.
waves 1 foot or less. 
.wednesday night...south winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.thursday...southwest winds 10 to 15 knots becoming west. a
chance of showers during the day, then showers likely thursday
night. waves 1 to 2 feet building to 2 to 4 feet, then subsiding
to 1 to 3 feet. 
.friday...northwest winds 5 to 10 knots becoming north. showers
likely during the day. waves 1 to 2 feet. 
.saturday...northeast winds 5 to 10 knots becoming southeast. a
chance of showers saturday night. waves 1 to 2 feet. 

$$

fzus61 kbuf 282003
glflo 
expires:202609290300;;209646

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt mon sep 28 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 29.8 inch low just southeast of long island this 
afternoon will continue to drift northeast along the new england 
coast through tuesday while filling to 29.9 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, before exiting into northern maine sunday.


loz063>065-290300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt mon sep 28 2026

.tonight...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...southwest winds 10 knots or less becoming south.
waves 1 foot or less. 
.wednesday...south winds 5 to 10 knots. 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...south winds 15 to 20 knots becoming west 10 to
15 knots. showers likely thursday night. waves 1 to 3 feet. 
.friday...northwest winds 5 to 15 knots becoming north. showers
likely during the day, then a chance of showers friday night.
waves 1 to 3 feet. 
.saturday...northeast winds 5 to 15 knots becoming southeast. a
chance of showers saturday night. waves 2 feet or less. 

$$

fzus61 kcle 281939
glfle 
expires:202609290215;;208926

open lake forecast for lake erie
national weather service cleveland oh
339 pm edt mon sep 28 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 shifting towards the mid-atlantic coast on
wednesday and thursday. a cold front will move across lake erie 
thursday night into friday. high pressure 30.20 inches returns on
saturday.


lez164>167-290215-
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-
339 pm edt mon sep 28 2026

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

$$

fzus61 kcle 281939
glfle 
expires:202609290215;;208927

open lake forecast for lake erie
national weather service cleveland oh
339 pm edt mon sep 28 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 shifting towards the mid-atlantic coast on
wednesday and thursday. a cold front will move across lake erie 
thursday night into friday. high pressure 30.20 inches returns on
saturday.


lez061-168-169-290215-
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-
339 pm edt mon sep 28 2026

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

$$

fzus61 kcle 281939
glfle 
expires:202609290215;;208925

open lake forecast for lake erie
national weather service cleveland oh
339 pm edt mon sep 28 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 shifting towards the mid-atlantic coast on
wednesday and thursday. a cold front will move across lake erie 
thursday night into friday. high pressure 30.20 inches returns on
saturday.


lez162-163-290215-
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-
339 pm edt mon sep 28 2026

.tonight...southeast 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 10 knots. waves 1 foot or less. 
.wednesday night...south winds 10 to 15 knots. waves 2 feet or
less. 
.thursday...southwest winds 10 to 15 knots becoming north 15 to
20 knots. a chance of showers during the day, then showers likely
thursday night. waves 1 to 3 feet. 
.friday...north winds 15 to 20 knots becoming northeast 10 to
15 knots. showers likely during the day. waves 1 to 3 feet. 
.saturday...northeast winds 10 to 15 knots becoming south. a
chance of showers. waves 1 to 3 feet. 

$$

fzus63 kdtx 281936
glfsc 
expires:202609290345;;208814

lake st clair forecast
national weather service detroit/pontiac mi
336 pm edt mon sep 28 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 tomorrow. light winds persist with high pressure in
place. the next chance for showers and possibly some
thunderstorms will enter wednesday and thursday ahead of a cold
front.


lcz460-290345-
lake st clair-
336 pm edt mon sep 28 2026

.tonight...northeast winds 5 to 10 knots this evening becoming light
and variable. mostly clear. patchy dense fog early in the morning.
waves 2 feet or less.
.tuesday...light and variable winds becoming southeast 5 to 10 knots
late in the afternoon. mostly sunny. patchy fog in the morning.
waves nearly calm.
.tuesday night...south winds 5 to 10 knots. partly cloudy. waves 2
feet or less.
.wednesday...south winds 5 to 10 knots. partly sunny. waves 2 feet
or less.
.wednesday night...south winds 10 to 15 knots. mostly cloudy. waves
2 feet or less.
.thursday...southwest winds 10 to 15 knots becoming west 5 to 10
knots in the evening. mostly cloudy. a chance of light showers in
the morning...then light showers likely in the afternoon and
evening. waves 2 feet or less.
.friday...north winds 15 to 20 knots. mostly cloudy. showers likely.
waves 2 feet or less.
.saturday...east winds 10 to 15 knots. partly cloudy. waves 2 feet
or less.

$$

fzus63 kdtx 281936
glflh 
expires:202609290345;;208817

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 pm edt mon sep 28 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 tomorrow. light winds persist with high pressure in
place. the next chance for rain showers and possibly some
thunderstorms will enter wednesday and thursday ahead of a cold
front.


lhz361-290345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
336 pm edt mon sep 28 2026

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


$$

fzus63 kdtx 281936
glflh 
expires:202609290345;;208818

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 pm edt mon sep 28 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 tomorrow. light winds persist with high pressure in
place. the next chance for rain showers and possibly some
thunderstorms will enter wednesday and thursday ahead of a cold
front.


lhz362-363-290345-
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-
336 pm edt mon sep 28 2026

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


$$

fzus63 kdtx 281936
glflh 
expires:202609290345;;208819

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 pm edt mon sep 28 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 tomorrow. light winds persist with high pressure in
place. the next chance for rain showers and possibly some
thunderstorms will enter wednesday and thursday ahead of a cold
front.


lhz462>464-290345-
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-
336 pm edt mon sep 28 2026

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


$$

fzus63 kmkx 281949
glflm 
expires:202609290315;;209221

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 pm cdt mon sep 28 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 today, keeping 
the weather dry and winds light out of the north

breezy southerly winds are expected to build tuesday afternoon and
continue into thursday, as high pressure departs to the east 
ahead of an approaching trough. wind gusts to 30 knots are 
possible wednesday afternoon along with building waves, 
particularly across central and northern portions of the lake.


lmz080-669-671-673-675-777-779-870-872-874-876-878-290315-
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-
249 pm cdt mon sep 28 2026

sheboygan wi to pentwater mi south...

.tonight...north winds 10 to 15 kt becoming northeast late this
evening, then becoming east after midnight becoming south late.
waves 1 to 2 ft. 
.tuesday...south winds 5 to 10 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 1 to 3 ft. 
.tuesday night...south winds 10 to 20 kt. 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 diminishing to 10 to
20 kt. chance of showers in the evening, then showers likely
overnight. waves 4 to 7 ft occasionally to 9 ft. 
.thursday...southwest winds 10 to 20 kt veering to northwest.
showers likely in the morning, then showers with a chance of
thunderstorms in the afternoon. waves 3 to 5 ft. 
.thursday night...north winds 10 to 20 kt. chance of showers.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.friday...northeast winds 10 to 20 kt becoming north. chance of
showers. waves 4 to 6 ft occasionally to 8 ft. 
.saturday...east winds 10 to 20 kt becoming southeast. waves 2 to
4 ft.  

$$

fzus63 kmkx 281949
glflm 
expires:202609290315;;209220

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 pm cdt mon sep 28 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 today, keeping 
the weather dry and winds light out of the north

breezy southerly winds are expected to build tuesday afternoon and
continue into thursday, as high pressure departs to the east 
ahead of an approaching trough. wind gusts to 30 knots are 
possible wednesday afternoon along with building waves, 
particularly across central and northern portions of the lake.


lmz261-362-364-366-563-565-567-868-290315-
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-
249 pm cdt mon sep 28 2026

sheboygan wi to pentwater mi north...

.tonight...north winds 5 to 10 kt veering to southeast. waves
1 ft or less. 
.tuesday...south winds 5 to 10 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 increasing to 15 to
25 kt. chance of showers overnight. waves 3 to 5 ft. 
.wednesday...south winds to 30 kt. showers likely. waves 4 to
7 ft occasionally to 9 ft. 
.wednesday night...south winds to 30 kt becoming southwest.
showers. waves 4 to 7 ft occasionally to 9 ft. 
.thursday...west winds 10 to 20 kt becoming northwest 15 to
25 kt. chance of showers. waves 3 to 5 ft. 
.thursday night...north winds 10 to 20 kt. waves 2 to 4 ft. 
.friday...north winds 10 to 20 kt. waves 2 to 4 ft. 
.saturday...southeast winds 10 to 15 kt becoming south. waves
1 to 3 ft.  

$$

fzus63 kmqt 282002
glfls 
expires:202609290800;;209611

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon sep 28 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 30.1 inch high pressure over lake superior this afternoon heads 
toward the lower great lakes tonight. thereafter a 29.7 inch trough 
builds into the plains with lake superior remaining between the 
trough and high pressure over the eastern u.s. the trough shifts to 
the western part of the lake by tuesday night as a 29.3 inch low 
moves from the canadian prairies to hudson bay. troughing over lake 
superior could strengthen to 29.6 inches wednesday night before high 
pressure of 30.3 inches develops over the central plains thursday 
night into friday. this high moves through the upper great lakes 
friday night and saturday.  




lsz162-290800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt mon sep 28 2026 /301 pm cdt mon sep 28 2026/

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

$$

fzus63 kmqt 282002
glfls 
expires:202609290800;;209612

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon sep 28 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 30.1 inch high pressure over lake superior this afternoon heads 
toward the lower great lakes tonight. thereafter a 29.7 inch trough 
builds into the plains with lake superior remaining between the 
trough and high pressure over the eastern u.s. the trough shifts to 
the western part of the lake by tuesday night as a 29.3 inch low 
moves from the canadian prairies to hudson bay. troughing over lake 
superior could strengthen to 29.6 inches wednesday night before high 
pressure of 30.3 inches develops over the central plains thursday 
night into friday. this high moves through the upper great lakes 
friday night and saturday.  




lsz263-290800-
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 mon sep 28 2026

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

$$

fzus63 kmqt 282002
glfls 
expires:202609290800;;209613

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon sep 28 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 30.1 inch high pressure over lake superior this afternoon heads 
toward the lower great lakes tonight. thereafter a 29.7 inch trough 
builds into the plains with lake superior remaining between the 
trough and high pressure over the eastern u.s. the trough shifts to 
the western part of the lake by tuesday night as a 29.3 inch low 
moves from the canadian prairies to hudson bay. troughing over lake 
superior could strengthen to 29.6 inches wednesday night before high 
pressure of 30.3 inches develops over the central plains thursday 
night into friday. this high moves through the upper great lakes 
friday night and saturday.  




lsz264-290800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt mon sep 28 2026

.late this afternoon...southeast winds less than 10 knots. areas
of fog. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots veering south late.
areas of fog. waves calm to 2 feet. 
.tuesday...south winds 10 to 20 knots. a chance of showers by mid
afternoon. waves building to 2 to 4 feet. 
.tuesday night...south winds 10 to 20 knots. a chance of showers.
waves subsiding to 1 to 3 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...southwest winds 5 to 15 knots becoming west
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.thursday...northwest winds 20 to 30 knots backing west by mid
afternoon. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 
.thursday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.friday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.saturday...south winds 5 to 15 knots increasing to 20 to
30 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet. 

$$

fzus63 kmqt 282002
glfls 
expires:202609290800;;209614

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon sep 28 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 30.1 inch high pressure over lake superior this afternoon heads 
toward the lower great lakes tonight. thereafter a 29.7 inch trough 
builds into the plains with lake superior remaining between the 
trough and high pressure over the eastern u.s. the trough shifts to 
the western part of the lake by tuesday night as a 29.3 inch low 
moves from the canadian prairies to hudson bay. troughing over lake 
superior could strengthen to 29.6 inches wednesday night before high 
pressure of 30.3 inches develops over the central plains thursday 
night into friday. this high moves through the upper great lakes 
friday night and saturday.  




lsz265-290800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt mon sep 28 2026

...dense fog advisory in effect until 5 am edt tuesday...

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

$$

fzus63 kmqt 282002
glfls 
expires:202609290800;;209615

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon sep 28 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 30.1 inch high pressure over lake superior this afternoon heads 
toward the lower great lakes tonight. thereafter a 29.7 inch trough 
builds into the plains with lake superior remaining between the 
trough and high pressure over the eastern u.s. the trough shifts to 
the western part of the lake by tuesday night as a 29.3 inch low 
moves from the canadian prairies to hudson bay. troughing over lake 
superior could strengthen to 29.6 inches wednesday night before high 
pressure of 30.3 inches develops over the central plains thursday 
night into friday. this high moves through the upper great lakes 
friday night and saturday.  




lsz266-290800-
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 mon sep 28 2026

...dense fog advisory in effect until 8 am edt tuesday...

.late this afternoon...northwest winds less than 10 knots. areas
of fog. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots becoming south 10 to
20 knots late. areas of fog. waves calm to 2 feet. 
.tuesday...south winds 10 to 20 knots increasing to 20 to
30 knots. areas of fog through early afternoon. a slight chance
of showers by mid afternoon. waves building to 2 to 4 feet. 
.tuesday night...south winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. a chance of showers. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.wednesday...south winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. a slight 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. waves building to 1 to 3 feet. 
.thursday...northwest gales to 35 knots backing west 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...northwest winds 15 to 25 knots. waves subsiding
to 2 to 4 feet. 
.friday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.saturday...south winds 10 to 20 knots increasing to 20 to
30 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet. 

$$

fzus63 kmqt 282002
glfls 
expires:202609290800;;209616

open lake forecast for lake superior
national weather service marquette mi
401 pm edt mon sep 28 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 30.1 inch high pressure over lake superior this afternoon heads 
toward the lower great lakes tonight. thereafter a 29.7 inch trough 
builds into the plains with lake superior remaining between the 
trough and high pressure over the eastern u.s. the trough shifts to 
the western part of the lake by tuesday night as a 29.3 inch low 
moves from the canadian prairies to hudson bay. troughing over lake 
superior could strengthen to 29.6 inches wednesday night before high 
pressure of 30.3 inches develops over the central plains thursday 
night into friday. this high moves through the upper great lakes 
friday night and saturday.  




lsz267-290800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt mon sep 28 2026

...dense fog advisory in effect until 8 am edt tuesday...

.late this afternoon...northwest winds 10 to 20 knots. areas of
fog. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots becoming south less than
10 knots after midnight. areas of fog. waves calm to 2 feet. 
.tuesday...south winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. areas of fog through early 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. 
.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 15 to 25 knots veering southwest
after midnight. a chance of showers. waves building to 1 to
3 feet. 
.thursday...west winds 20 to 30 knots becoming northwest gales to
35 knots by mid afternoon. waves building to 4 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 2 to 4 feet. 
.friday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.saturday...south winds 5 to 15 knots increasing to 15 to
25 knots. a chance of showers. waves building to 2 to 4 feet. 

$$