fzus61 kbuf 280802
glflo 
expires:202609281500;;181982

open lake forecast for lake ontario
national weather service buffalo ny
402 am 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 29.5 inch low near the jersey shore this morning 
will drift 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.


loz062-281500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt mon sep 28 2026

.today...northeast winds 15 to 20 knots becoming west and
diminishing to 10 knots or less this afternoon. waves 2 to 4 feet
subsiding to 1 to 2 feet. 
.tonight...west winds less than 10 knots. waves 1 foot or less. 
.tuesday...light and variable winds. waves 1 foot or less. 
.tuesday night...southeast winds less than 10 knots becoming
south. waves 1 foot or less. 
.wednesday...south winds 10 knots or less. waves 2 feet or less. 
.thursday...southwest winds 10 to 15 knots becoming west. showers
likely thursday night. waves 1 to 3 feet building to 2 to 4 feet.
.friday...northwest winds 5 to 10 knots. showers likely during
the day. waves 1 to 3 feet. 

$$

fzus61 kbuf 280802
glflo 
expires:202609281500;;181983

open lake forecast for lake ontario
national weather service buffalo ny
402 am 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 29.5 inch low near the jersey shore this morning 
will drift 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>065-281500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt mon sep 28 2026

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

$$

fzus61 kcle 280753
glfle 
expires:202609281415;;181702

open lake forecast for lake erie
national weather service cleveland oh
353 am 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 departing to the east on wednesday and
thursday. a weak cold front will move across lake erie thursday
night into friday.


lez164>167-281415-
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-
353 am edt mon sep 28 2026

.today...north winds 5 to 15 knots. waves 1 to 3 feet. 
.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 1 foot or less. 
.wednesday...south winds 5 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.thursday...south winds 15 to 20 knots becoming northwest.
showers likely thursday night. waves 2 to 4 feet. 
.friday...north winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 

$$

fzus61 kcle 280753
glfle 
expires:202609281415;;181703

open lake forecast for lake erie
national weather service cleveland oh
353 am 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 departing to the east on wednesday and
thursday. a weak cold front will move across lake erie thursday
night into friday.


lez061-168-169-281415-
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-
353 am edt mon sep 28 2026

.today...northeast winds 5 to 15 knots becoming north less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.tonight...northwest 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 15 knots. waves 2 feet or less. 
.thursday...south winds 15 to 20 knots becoming northwest 10 to
15 knots. showers likely thursday night. waves 1 to 3 feet. 
.friday...north winds 5 to 15 knots. a chance of showers during
the day. waves 1 to 3 feet. 

$$

fzus61 kcle 280753
glfle 
expires:202609281415;;181701

open lake forecast for lake erie
national weather service cleveland oh
353 am 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 departing to the east on wednesday and
thursday. a weak cold front will move across lake erie thursday
night into friday.


lez162-163-281415-
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-
353 am edt mon sep 28 2026

.today...north winds 5 to 15 knots diminishing to less than
10 knots. waves 2 feet or less. 
.tonight...light and variable winds. 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 2 feet or less. 
.thursday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of showers during the day, then showers
likely thursday night. waves 1 to 3 feet. 
.friday...north winds 10 to 15 knots. a chance of showers during
the day. waves 1 to 2 feet. 

$$

fzus63 kdtx 280741
glfsc 
expires:202609281545;;181423

lake st clair forecast
national weather service detroit/pontiac mi
341 am 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.


lcz460-281545-
lake st clair-
341 am edt mon sep 28 2026

.today...north winds 10 to 15 knots diminishing to 5 to 10 knots in
the late morning and afternoon. mostly sunny. waves 2 feet or less.
.tonight...northeast winds 5 to 10 knots this evening becoming light
and variable. clear. patchy fog early in the morning. waves 2 feet
or less.
.tuesday...light and variable winds. mostly sunny. patchy fog until
late afternoon. 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 increasing to 10 to 15 knots
in the evening. partly cloudy. waves 2 feet or less.
.thursday...west winds 15 to 20 knots. mostly cloudy. showers
likely. waves 1 to 3 feet.
.friday...north winds 10 to 15 knots. partly cloudy. showers likely.
waves 2 feet or less.

$$

fzus63 kdtx 280741
glflh 
expires:202609281545;;181419

open lake forecast for lake huron
national weather service detroit/pontiac mi
341 am 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.


lhz361-281545-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
341 am edt mon sep 28 2026

.today...northwest winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.tonight...light and variable winds becoming northwest 5 to
10 knots late in the evening...then becoming light and variable
after midnight. patchy dense fog after midnight. waves 2 feet or
less. 
.tuesday...light and variable winds becoming east 5 to 10 knots
early 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 late in the morning...then decreasing to 5 to 10 knots
late in the afternoon increasing to 10 to 15 knots late in the
evening. a chance of showers...then showers likely late in the
afternoon. waves 1 to 3 feet. 
.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 building to 2 to 4 feet. 
.friday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots by midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 280741
glflh 
expires:202609281545;;181420

open lake forecast for lake huron
national weather service detroit/pontiac mi
341 am 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.


lhz362-363-281545-
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-
341 am edt mon sep 28 2026

.today...north winds 5 to 10 knots. patchy fog in the morning.
waves 2 feet or less. 
.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. 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 1 to
3 feet. 
.wednesday...south winds 10 to 15 knots increasing to 15 to
20 knots late in the evening. a chance of showers. waves 1 to
3 feet building to 2 to 4 feet. 
.thursday...southwest winds 15 to 20 knots with gusts to around
30 knots veering to the west . showers likely...then a chance of
showers by midnight. waves 3 to 5 feet. 
.friday...northwest winds 10 to 15 knots. waves 2 to 4 feet. 


$$

fzus63 kdtx 280741
glflh 
expires:202609281545;;181421

open lake forecast for lake huron
national weather service detroit/pontiac mi
341 am 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>464-281545-
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-
341 am edt mon sep 28 2026

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


$$

fzus63 kmkx 280832
glflm 
expires:202609281530;;183354

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
332 am 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 through 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.


lmz261-362-364-366-563-565-567-868-281530-
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-
332 am cdt mon sep 28 2026

sheboygan wi to pentwater mi north...

.today...north winds 5 to 10 kt becoming northwest. waves 1 ft or
less. 
.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. waves 3 to 5 ft. 
.wednesday...south winds 15 to 25 kt increasing to 30 kt. chance
of showers in the morning, then showers likely in the afternoon.
waves 4 to 7 ft occasionally to 9 ft building to 5 to 8 ft
occasionally to 10 ft. 
.wednesday night...south winds 15 to 25 kt becoming southwest.
showers likely. waves 5 to 8 ft occasionally to 10 ft subsiding
to 4 to 6 ft occasionally to 8 ft. 
.thursday...southwest winds 15 to 25 kt becoming northwest to
30 kt. chance of showers. waves 4 to 6 ft occasionally to 8 ft. 
.friday...northwest winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 280832
glflm 
expires:202609281530;;183355

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
332 am 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 through 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.


lmz080-669-671-673-675-777-779-870-872-874-876-878-281530-
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-
332 am cdt mon sep 28 2026

sheboygan wi to pentwater mi south...

.today...north winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 to 2 ft. 
.tonight...north winds 10 to 15 kt becoming northeast late in the
evening, then becoming east after midnight veering to south late.
waves 1 to 2 ft. 
.tuesday...south winds 5 to 10 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.tuesday night...south winds 10 to 20 kt. waves 2 to 4 ft
building to 3 to 5 ft. 
.wednesday...south winds 15 to 25 kt. chance of showers. waves
4 to 7 ft occasionally to 9 ft building to 5 to 8 ft occasionally
to 10 ft. 
.wednesday night...south winds 15 to 25 kt diminishing to 10 to
20 kt. chance of showers. waves 5 to 8 ft occasionally to 10 ft
subsiding to 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 10 to 20 kt. waves 4 to 6 ft occasionally
to 8 ft.  

$$

fzus63 kmqt 280801
glfls 
expires:202609282000;;181904

open lake forecast for lake superior
national weather service marquette mi
401 am 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 holds over lake superior today. 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.




lsz264-282000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am edt mon sep 28 2026

.early this morning...north winds 5 to 15 knots. waves calm to
2 feet. 
.today...northeast winds 5 to 15 knots becoming east less than
10 knots in the afternoon, then veering southeast late. waves
calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots veering south late.
waves calm to 2 feet. 
.tuesday...south winds 10 to 20 knots. a slight chance of showers
by mid afternoon. waves building to 1 to 3 feet. 
.tuesday night...south winds 10 to 20 knots. a chance of showers.
waves 1 to 3 feet. 
.wednesday...south winds 5 to 15 knots. a chance of showers.
waves 1 to 3 feet. 
.wednesday night...southwest winds 5 to 15 knots becoming west
10 to 20 knots after midnight. a chance of showers. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.thursday...west gales to 40 knots becoming northwest 20 to
30 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 
.friday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 280801
glfls 
expires:202609282000;;181905

open lake forecast for lake superior
national weather service marquette mi
401 am 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 holds over lake superior today. 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.




lsz265-282000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt mon sep 28 2026

.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...north winds 5 to 15 knots veering east late. waves calm
to 2 feet. 
.tonight...southeast winds 5 to 15 knots increasing to 10 to
20 knots after midnight, then veering south late. waves calm to
2 feet. 
.tuesday...south winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves building to 1 to 3 feet. 
.tuesday night...south winds 15 to 25 knots. a chance of showers
through midnight, then showers likely after midnight. waves
subsiding to calm to 2 feet. 
.wednesday...south winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. a chance of showers. waves building to
1 to 3 feet, then 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 45 knots becoming northwest 20 to
30 knots. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 2 to 4 feet. 
.friday...northwest winds 15 to 25 knots becoming west 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 280801
glfls 
expires:202609282000;;181902

open lake forecast for lake superior
national weather service marquette mi
401 am 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 holds over lake superior today. 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.




lsz162-282000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt mon sep 28 2026 /301 am cdt mon sep 28 2026/

.early this morning...north winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.today...northeast winds less than 10 knots becoming east 5 to
15 knots in the afternoon, then backing northeast late. waves
calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering south late. a slight
chance of showers after midnight. waves calm to 2 feet. 
.tuesday...south winds 10 to 20 knots. a chance of showers. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. showers likely through midnight, then a
chance of showers after midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots. 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 through
midnight. waves calm to 2 feet. 
.thursday...west winds 15 to 25 knots diminishing to 10 to
20 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 280801
glfls 
expires:202609282000;;181907

open lake forecast for lake superior
national weather service marquette mi
401 am 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 holds over lake superior today. 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.




lsz267-282000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am edt mon sep 28 2026

.early this morning...north winds 5 to 15 knots. waves calm to
2 feet. 
.today...north winds 5 to 15 knots backing northwest in the
afternoon. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots becoming northwest less than
10 knots after midnight, then becoming south 5 to 15 knots late.
waves calm to 2 feet. 
.tuesday...south winds 5 to 15 knots increasing to 15 to
25 knots. 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 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. showers likely through early
afternoon, then a chance of showers by mid afternoon. waves
building to 2 to 4 feet. 
.wednesday 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. 
.thursday...west gales to 35 knots becoming northwest 15 to
25 knots. a chance of showers. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 280801
glfls 
expires:202609282000;;181906

open lake forecast for lake superior
national weather service marquette mi
401 am 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 holds over lake superior today. 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.




lsz266-282000-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
401 am edt mon sep 28 2026

.early this morning...north winds 5 to 15 knots. waves calm to
2 feet. 
.today...north winds 5 to 15 knots diminishing to less than
10 knots in the afternoon. waves calm to 2 feet. 
.tonight...east 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 10 to 20 knots increasing to 20 to
30 knots. 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 through midnight,
then showers likely after midnight. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.wednesday...south winds 20 to 30 knots. a chance of showers.
waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.wednesday night...south winds 15 to 25 knots veering southwest
after midnight. a chance of showers. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.thursday...west gales to 40 knots becoming northwest 20 to
30 knots. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 280801
glfls 
expires:202609282000;;181903

open lake forecast for lake superior
national weather service marquette mi
401 am 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 holds over lake superior today. 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.




lsz263-282000-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
401 am edt mon sep 28 2026

.early this morning...north winds 5 to 15 knots. waves calm to
2 feet. 
.today...northeast winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then becoming east 5 to 15 knots late.
waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering south late. a slight
chance of showers after midnight. waves calm to 2 feet. 
.tuesday...south winds 15 to 25 knots diminishing to 10 to
20 knots late. 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 10 to 20 knots. showers likely.
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 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
6 feet occasionally to 8 feet, then subsiding to 1 to 3 feet. 
.friday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves subsiding to calm to 2 feet. 

$$