fzus61 kbuf 301403
glflo 
expires:202605302100;;896197

open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt sat may 30 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 30.2 inch high over northern ontario will build 
southeastward across the great lakes and ohio valley this weekend, 
with a 29.8 inch low then forecast to push south across new england 
sunday night and monday. another 30.3 inch high will then build 
south across the great lakes and ohio valley tuesday and wednesday.


loz062-302100-
lake ontario open waters from the niagara river to hamlin beach-
1003 am edt sat may 30 2026

.this afternoon...north winds 10 knots or less becoming west.
waves 2 feet or less. 
.tonight...west winds 10 knots or less. waves 1 foot or less. 
.sunday...west winds 5 to 15 knots becoming southwest. waves 1 to
2 feet. 
.sunday night...west winds 5 to 15 knots becoming northwest less
than 10 knots. waves 2 feet or less. 
.monday...northeast winds less than 10 knots becoming north.
waves 1 foot or less. 
.tuesday...northwest winds 10 knots or less becoming north. waves
1 foot or less. 
.wednesday...northeast winds 10 knots or less becoming west.
waves 1 foot or less. 

$$

fzus61 kbuf 301403
glflo 
expires:202605302100;;896198

open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt sat may 30 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 30.2 inch high over northern ontario will build 
southeastward across the great lakes and ohio valley this weekend, 
with a 29.8 inch low then forecast to push south across new england 
sunday night and monday. another 30.3 inch high will then build 
south across the great lakes and ohio valley tuesday and wednesday.


loz063>065-302100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 am edt sat may 30 2026

.this afternoon...north winds 15 to 20 knots becoming northwest
10 to 15 knots. waves 3 to 5 feet subsiding to 1 to 2 feet. 
.tonight...northwest winds 5 to 10 knots becoming west. waves
2 feet or less. 
.sunday...west winds 10 to 15 knots increasing to 15 to 20 knots.
waves 1 to 3 feet building to 2 to 4 feet. 
.sunday night...west winds 15 to 20 knots becoming northwest 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...north winds 10 knots or less becoming northwest. waves
1 foot or less. 
.tuesday...northwest winds 10 knots or less becoming north. waves
1 foot or less. 
.wednesday...north winds 10 knots or less becoming southwest.
waves 1 foot or less. 

$$

fzus61 kcle 301754
glfle 
expires:202605302015;;903933

open lake forecast for lake erie
national weather service cleveland oh
154 pm edt sat may 30 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
high pressure 30.10 inches gradually builds in from the north,
becoming centered over lake erie by sunday morning. another high
30.20 inches builds in from the north by wednesday.


lez061-166>169-302015-
ripley to buffalo ny extending from 5nm 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-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-
154 pm edt sat may 30 2026

.this afternoon...northeast winds 15 to 20 knots. waves 3 to
5 feet. 
.tonight...northeast winds 15 to 20 knots becoming southeast 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...south winds 10 knots or less becoming northwest. waves
1 foot or less. 
.sunday night...west winds 10 knots or less. waves 1 foot or
less. 
.monday...north winds 10 knots or less becoming northeast. waves
1 foot or less. 
.tuesday...northeast winds 5 to 10 knots becoming north. waves
1 foot or less. 
.wednesday...north winds 10 knots or less becoming southwest.
waves 1 foot or less. 

$$

fzus61 kcle 301754
glfle 
expires:202605302015;;903932

open lake forecast for lake erie
national weather service cleveland oh
154 pm edt sat may 30 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
high pressure 30.10 inches gradually builds in from the north,
becoming centered over lake erie by sunday morning. another high
30.20 inches builds in from the north by wednesday.


lez164-165-302015-
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-
154 pm edt sat may 30 2026

.this afternoon...northeast winds 15 to 20 knots. waves 3 to
5 feet. 
.tonight...east winds 15 to 20 knots becoming southeast 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...southeast winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.sunday night...northeast winds less than 10 knots. waves 1 foot
or less. 
.monday...northwest winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.tuesday...northeast winds 5 to 10 knots becoming north. waves
around 1 foot. 
.wednesday...north winds 10 knots or less becoming south. waves
1 foot or less. 

$$

fzus61 kcle 301754
glfle 
expires:202605302015;;903931

open lake forecast for lake erie
national weather service cleveland oh
154 pm edt sat may 30 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
high pressure 30.10 inches gradually builds in from the north,
becoming centered over lake erie by sunday morning. another high
30.20 inches builds in from the north by wednesday.


lez162-163-302015-
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-
154 pm edt sat may 30 2026

.this afternoon...east winds 15 to 20 knots. waves 3 to 5 feet. 
.tonight...east winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...southeast winds 5 to 10 knots becoming east. waves
1 foot or less. 
.sunday night...east winds less than 10 knots becoming west.
waves 1 foot or less. 
.monday...northwest winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.tuesday...northeast winds 5 to 10 knots. waves 1 foot or less. 
.wednesday...north winds 5 to 10 knots becoming south. waves
1 foot or less. 

$$

fzus63 kdtx 301355
glfsc 
expires:202605302200;;895927

lake st clair forecast
national weather service detroit/pontiac mi
955 am edt sat may 30 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...north to northeast winds continue today ahead of high
pressure building down from northern ontario. this high increases
to 30.30 inches across northern lake huron tonight and holds in 
place for an extended stretch of dry weather over the next several
days.


lcz460-302200-
lake st clair-
955 am edt sat may 30 2026

.rest of today...northeast winds 10 to 15 knots diminishing to 5 to
10 knots in the afternoon. sunny. waves 1 to 3 feet subsiding to 
2 feet or less.
.tonight...northeast winds 10 to 15 knots becoming light and
variable. clear. waves 2 feet or less.
.sunday...light and variable winds becoming southeast 5 to 10 knots
early in the afternoon. sunny. waves 2 feet or less.
.sunday night...southeast winds 5 to 10 knots early in the evening
becoming light and variable. clear. waves 2 feet or less.
.monday...light and variable winds becoming northeast 10 to 15 knots
in the afternoon and evening. clear. waves 2 feet or less.
.tuesday...northeast winds 10 to 15 knots. clear. waves 2 feet or
less.
.wednesday...southeast winds 5 to 10 knots. clear. waves 2 feet or
less.

$$

fzus63 kdtx 301352
glflh 
expires:202605302200;;895823

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am edt sat may 30 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...north to northeast winds continue today ahead of high
pressure building down from northern ontario. this high increases
to 30.30 inches across northern lake huron tonight and holds in 
place for an extended stretch of dry weather over the next several
days.


lhz363-462>464-302200-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
952 am edt sat may 30 2026

.rest of today...north to northeast winds 15 to 20 knots. waves 2
to 4 feet subsiding to 1 to 3 feet in the afternoon. 
.tonight...north winds 5 to 10 knots in the evening becoming
light and variable. waves 2 to 4 feet subsiding to 1 to 3 feet
after midnight. 
.sunday...light and variable winds. waves 2 feet or less. 
.sunday night...light and variable winds becoming northwest 5 to
10 knots after midnight. waves 2 feet or less. 
.monday...north winds 5 to 10 knots. waves 1 to 3 feet building
to 2 to 4 feet late in the afternoon. 
.tuesday...north winds 5 to 10 knots backing to the northwest by
midnight. waves 1 to 3 feet. 
.wednesday...west winds 5 to 10 knots backing to the southeast by
midnight. waves 2 feet or less. 


$$

fzus63 kdtx 301352
glflh 
expires:202605302200;;895822

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am edt sat may 30 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...north to northeast winds continue today ahead of high
pressure building down from northern ontario. this high increases
to 30.30 inches across northern lake huron tonight and holds in 
place for an extended stretch of dry weather over the next several
days.


lhz361-362-302200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
952 am edt sat may 30 2026

.rest of today...northeast winds 5 to 10 knots late in the
morning becoming light and variable. waves 1 to 3 feet. 
.tonight...light and variable winds. waves 2 feet or less. 
.sunday...light and variable winds becoming west 5 to 10 knots in
the late morning and afternoon. waves 2 feet or less. 
.sunday night...west winds 10 to 15 knots becoming northwest 5 to
10 knots after midnight. waves 2 to 4 feet. 
.monday...north winds 5 to 10 knots veering to the east late in
the morning...then becoming light and variable late in the
afternoon becoming northwest 5 to 10 knots late in the evening.
waves 2 feet or less. 
.tuesday...north winds 5 to 10 knots backing to the west . waves
2 feet or less. 
.wednesday...west winds 5 to 10 knots backing to the south by
midnight. waves 2 feet or less. 


$$

fzus63 kmkx 301355
glflm 
expires:202605302115;;895936

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 am cdt sat may 30 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 over the upper great lakes will strengthen to 
around 30.2 inches tonight and continue to dominate the weather 
pattern into start of the week. will see breezy northeast to 
easterly winds in the wake of a backdoor cold front this morning 
through day today before lighter winds return for sunday. then a 
similar pattern is expected again monday into monday night with 
breezy easterly winds returning before weakening for tuesday. 
winds then look to become more southerly on wednesday as the high
pressure breaks down and exits the region while low pressure 
develops over the plains.


lmz080-669-671-673-675-777-779-870-872-874-876-878-302115-
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-
855 am cdt sat may 30 2026

sheboygan wi to pentwater mi south...

.rest of today...east winds to 30 kt becoming northeast 10 to
20 kt early this afternoon, then increasing to 15 to 25 kt late.
waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.tonight...northeast winds 15 to 25 kt veering to southeast 10 to
20 kt. waves 2 to 4 ft. 
.sunday...southeast winds 10 to 20 kt diminishing to 5 to 10 kt
late in the morning, then becoming east early in the afternoon
becoming northeast late. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.sunday night...northeast winds 5 to 10 kt becoming north. waves
1 ft or less. 
.monday...northeast winds 5 to 10 kt becoming north 10 to 20 kt
in the afternoon. waves 1 ft or less building to 1 to 3 ft. 
.monday night...northeast winds 10 to 20 kt becoming east 10 to
15 kt. waves 2 to 4 ft. 
.tuesday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 3 ft. 
.wednesday...southeast winds 5 to 10 kt increasing to 10 to
15 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 301355
glflm 
expires:202605302115;;895935

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 am cdt sat may 30 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 over the upper great lakes will strengthen to 
around 30.2 inches tonight and continue to dominate the weather 
pattern into start of the week. will see breezy northeast to 
easterly winds in the wake of a backdoor cold front this morning 
through day today before lighter winds return for sunday. then a 
similar pattern is expected again monday into monday night with 
breezy easterly winds returning before weakening for tuesday. 
winds then look to become more southerly on wednesday as the high
pressure breaks down and exits the region while low pressure 
develops over the plains.


lmz261-362-364-366-563-565-567-868-302115-
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-
855 am cdt sat may 30 2026

sheboygan wi to pentwater mi north...

.rest of today...east winds 15 to 25 kt becoming northeast 10 to
20 kt. waves 1 to 3 ft. 
.tonight...northeast winds 10 to 20 kt veering to south 10 to
15 kt. waves 1 to 3 ft. 
.sunday...south winds 5 to 10 kt becoming southwest. waves 1 to
3 ft. 
.sunday night...southwest winds 10 to 15 kt veering to northwest.
waves 1 to 2 ft. 
.monday...northeast winds 10 to 20 kt. waves 1 to 3 ft. 
.monday night...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 3 ft. 
.tuesday...northeast winds 5 to 10 kt becoming northwest 10 to
20 kt. waves 1 to 2 ft. 
.wednesday...south winds 5 to 10 kt becoming southwest 10 to
15 kt. waves 1 to 2 ft.  

$$

fzus63 kmqt 301401
glfls 
expires:202605302000;;896139

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat may 30 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 30.4 inch high pressure over northern ontario will weaken 
throughout the day, becoming 30.2 inches over the upper great lakes 
tonight. the high remains over the area into tomorrow while 
progressively weakening with time, eventually becoming around 30.0 
inches by late tomorrow as another 30.4 inch high approaches the 
area from hudson bay. this second high settles north of the great 
lakes monday before arriving over the lake by tuesday. the high 
moves over the lower great lakes at 30.2 inches wednesday evening as 
a 29.9 inch trough moves over the northern plains. this trough moves 
near lake superior thursday, strengthening to 29.7 inches.




lsz267-302000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt sat may 30 2026

.rest of today...east winds 5 to 15 knots backing northeast in
the afternoon. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering south late. waves
calm to 2 feet. 
.sunday...southeast winds less than 10 knots veering northwest in
the afternoon, then increasing to 5 to 15 knots late. waves calm
to 2 feet. 
.sunday night...northwest winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots becoming northeast 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots becoming northeast
5 to 15 knots after midnight. waves calm to 2 feet. 
.tuesday...north winds 5 to 15 knots veering south. waves calm to
2 feet. 
.wednesday...south winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202605302000;;896135

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat may 30 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 30.4 inch high pressure over northern ontario will weaken 
throughout the day, becoming 30.2 inches over the upper great lakes 
tonight. the high remains over the area into tomorrow while 
progressively weakening with time, eventually becoming around 30.0 
inches by late tomorrow as another 30.4 inch high approaches the 
area from hudson bay. this second high settles north of the great 
lakes monday before arriving over the lake by tuesday. the high 
moves over the lower great lakes at 30.2 inches wednesday evening as 
a 29.9 inch trough moves over the northern plains. this trough moves 
near lake superior thursday, strengthening to 29.7 inches.




lsz263-302000-
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-
1001 am edt sat may 30 2026

.rest of today...east winds 10 to 20 knots becoming northeast
15 to 25 knots in the afternoon, then increasing to 20 to
30 knots late. waves 2 to 4 feet building to 3 to 5 feet
occasionally to 7 feet. 
.tonight...east winds 20 to 30 knots diminishing to 5 to 15 knots
after midnight, then veering south late. waves subsiding to calm
to 2 feet. 
.sunday...south winds less than 10 knots increasing to 5 to
15 knots in the afternoon, then backing east late. waves calm to
2 feet. 
.sunday night...east winds less than 10 knots increasing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots. waves building to 2 to
4 feet. 
.monday night...northeast winds 5 to 15 knots veering east after
midnight. waves subsiding to calm to 2 feet. 
.tuesday...east winds 5 to 15 knots veering southwest. waves calm
to 2 feet. 
.wednesday...southwest winds 5 to 15 knots backing south. a
chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202605302000;;896134

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat may 30 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 30.4 inch high pressure over northern ontario will weaken 
throughout the day, becoming 30.2 inches over the upper great lakes 
tonight. the high remains over the area into tomorrow while 
progressively weakening with time, eventually becoming around 30.0 
inches by late tomorrow as another 30.4 inch high approaches the 
area from hudson bay. this second high settles north of the great 
lakes monday before arriving over the lake by tuesday. the high 
moves over the lower great lakes at 30.2 inches wednesday evening as 
a 29.9 inch trough moves over the northern plains. this trough moves 
near lake superior thursday, strengthening to 29.7 inches.




lsz162-302000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt sat may 30 2026 /901 am cdt sat may 30 2026/

.rest of today...northeast winds 15 to 25 knots increasing to
20 to 30 knots in the afternoon. waves 3 to 6 feet occasionally
to 8 feet. 
.tonight...northeast winds 20 to 30 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots veering east in the
afternoon. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots backing northeast after
midnight. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 2 to 4 feet. 
.monday night...northeast winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots veering southwest. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202605302000;;896136

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat may 30 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 30.4 inch high pressure over northern ontario will weaken 
throughout the day, becoming 30.2 inches over the upper great lakes 
tonight. the high remains over the area into tomorrow while 
progressively weakening with time, eventually becoming around 30.0 
inches by late tomorrow as another 30.4 inch high approaches the 
area from hudson bay. this second high settles north of the great 
lakes monday before arriving over the lake by tuesday. the high 
moves over the lower great lakes at 30.2 inches wednesday evening as 
a 29.9 inch trough moves over the northern plains. this trough moves 
near lake superior thursday, strengthening to 29.7 inches.




lsz264-302000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt sat may 30 2026

.rest of today...east winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.tonight...east winds 5 to 15 knots veering southeast after
midnight, then becoming south less than 10 knots late. waves
subsiding to calm to 2 feet. 
.sunday...south winds less than 10 knots veering southwest in the
afternoon. waves calm to 2 feet. 
.sunday night...south winds less than 10 knots backing east after
midnight. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots veering south. waves calm to
2 feet. 
.wednesday...south winds 5 to 15 knots. a chance of showers.
waves building to 1 to 3 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202605302000;;896137

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat may 30 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 30.4 inch high pressure over northern ontario will weaken 
throughout the day, becoming 30.2 inches over the upper great lakes 
tonight. the high remains over the area into tomorrow while 
progressively weakening with time, eventually becoming around 30.0 
inches by late tomorrow as another 30.4 inch high approaches the 
area from hudson bay. this second high settles north of the great 
lakes monday before arriving over the lake by tuesday. the high 
moves over the lower great lakes at 30.2 inches wednesday evening as 
a 29.9 inch trough moves over the northern plains. this trough moves 
near lake superior thursday, strengthening to 29.7 inches.




lsz265-302000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt sat may 30 2026

.rest of today...east winds 15 to 25 knots. waves 2 to 4 feet. 
.tonight...southeast winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then veering south late. waves subsiding
to calm to 2 feet. 
.sunday...south winds 5 to 15 knots backing east in the
afternoon. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots veering southeast after
midnight. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots veering south. waves calm to
2 feet. 
.wednesday...southeast winds 5 to 15 knots becoming south 10 to
20 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 301401
glfls 
expires:202605302000;;896138

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat may 30 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 30.4 inch high pressure over northern ontario will weaken 
throughout the day, becoming 30.2 inches over the upper great lakes 
tonight. the high remains over the area into tomorrow while 
progressively weakening with time, eventually becoming around 30.0 
inches by late tomorrow as another 30.4 inch high approaches the 
area from hudson bay. this second high settles north of the great 
lakes monday before arriving over the lake by tuesday. the high 
moves over the lower great lakes at 30.2 inches wednesday evening as 
a 29.9 inch trough moves over the northern plains. this trough moves 
near lake superior thursday, strengthening to 29.7 inches.




lsz266-302000-
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-
1001 am edt sat may 30 2026

.rest of today...east winds 10 to 20 knots. waves 1 to 3 feet. 
.tonight...east winds 5 to 15 knots veering south late. waves
subsiding to calm to 2 feet. 
.sunday...south winds less than 10 knots backing north late.
waves calm to 2 feet. 
.sunday night...northwest winds less than 10 knots becoming
northeast 5 to 15 knots after midnight. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves calm to 2 feet. 
.monday night...northeast winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots veering south. waves
calm to 2 feet. 
.wednesday...south winds 10 to 20 knots. waves building to 2 to
4 feet. 

$$