fzus61 kbuf 302002
glflo 
expires:202605310300;;910928

open lake forecast for lake ontario
national weather service buffalo ny
402 pm 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>065-310300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sat may 30 2026

.tonight...west winds 5 to 15 knots. 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 5 to 10 knots becoming northwest. waves
1 foot or less. 
.monday night...northwest winds 10 knots or less. waves 1 foot or
less. 
.tuesday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.wednesday...west winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots. waves 2 feet or less. 

$$

fzus61 kbuf 302002
glflo 
expires:202605310300;;910927

open lake forecast for lake ontario
national weather service buffalo ny
402 pm 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.


loz062-310300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt sat may 30 2026

.tonight...west winds 5 to 10 knots. 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...north winds less than 10 knots becoming east. waves
1 foot or less. 
.monday night...east winds less than 10 knots. waves 1 foot or
less. 
.tuesday...northwest winds 10 knots or less. waves 1 foot or
less. 
.wednesday...northwest winds less than 10 knots becoming west.
waves 1 foot or less. 
.thursday...west winds 5 to 15 knots becoming southwest. waves
1 to 3 feet. 

$$

fzus61 kcle 301956
glfle 
expires:202605310215;;910707

open lake forecast for lake erie
national weather service cleveland oh
356 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 30.20 inches building in from the north becomes 
centered over lake erie by sunday morning. re-enforcing high
pressure builds in tuesday and wednesday, maintaining control of
the weather over lake erie through much of the week. 


lez164>166-310215-
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-
356 pm edt sat may 30 2026

.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 2 feet or less. 
.sunday night...northeast winds less than 10 knots becoming
southwest. waves 1 foot or less. 
.monday...north winds 10 knots or less becoming northeast. waves
1 foot or less. 
.monday night...northeast winds 5 to 10 knots. waves 1 to 2 feet.
.tuesday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.wednesday...north winds 10 knots or less becoming south. waves
1 foot or less. 
.thursday...southwest winds 10 knots or less increasing to 10 to
15 knots. waves 2 feet or less. 

$$

fzus61 kcle 301956
glfle 
expires:202605310215;;910708

open lake forecast for lake erie
national weather service cleveland oh
356 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 30.20 inches building in from the north becomes 
centered over lake erie by sunday morning. re-enforcing high
pressure builds in tuesday and wednesday, maintaining control of
the weather over lake erie through much of the week. 


lez061-167>169-310215-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
356 pm edt sat may 30 2026

.tonight...northeast winds 15 to 20 knots becoming southeast 5 to
15 knots. waves 2 to 4 feet subsiding to 1 foot or less. 
.sunday...south winds 10 knots or less becoming west. waves
1 foot or less. 
.sunday night...southwest winds 10 knots or less becoming
northwest. waves 1 foot or less. 
.monday...northeast winds 10 knots or less. waves 1 foot or less.
.monday night...northeast winds 5 to 10 knots. 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. 
.thursday...southwest winds 10 knots or less increasing to 10 to
15 knots. waves 2 feet or less. 

$$

fzus61 kcle 301956
glfle 
expires:202605310215;;910706

open lake forecast for lake erie
national weather service cleveland oh
356 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 30.20 inches building in from the north becomes 
centered over lake erie by sunday morning. re-enforcing high
pressure builds in tuesday and wednesday, maintaining control of
the weather over lake erie through much of the week. 


lez162-163-310215-
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-
356 pm edt sat may 30 2026

.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 10 knots or less becoming east. waves
2 feet or less. 
.sunday night...east winds less than 10 knots. waves 1 foot or
less. 
.monday...northwest winds 10 knots or less becoming east. waves
1 foot or less. 
.monday night...east winds around 10 knots becoming northeast.
waves 1 foot or less. 
.tuesday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.wednesday...north winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.thursday...southwest winds 5 to 15 knots. waves 2 feet or less. 

$$

fzus63 kdtx 301940
glfsc 
expires:202605310345;;910334

lake st clair forecast
national weather service detroit/pontiac mi
340 pm 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...high pressure, 30.30 inches, governs great lakes
conditions this weekend into next week. dry and overall favorable
marine weather is expected.


lcz460-310345-
lake st clair-
340 pm edt sat may 30 2026

.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
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...northeast winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. sunny. waves 2 feet or less.
.monday night...northeast winds 10 to 15 knots becoming north 5 to
10 knots after midnight. clear. waves 2 feet or less.
.tuesday...north winds 5 to 10 knots becoming northeast 10 to 15
knots in the afternoon and evening. sunny becoming mostly clear.
waves 2 feet or less.
.wednesday...southeast winds 5 to 10 knots. clear. waves 2 feet or
less.
.thursday...south winds 10 to 15 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 301940
glflh 
expires:202605310345;;910331

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 pm 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...high pressure, 30.30 inches, governs great lakes
conditions this weekend into next week. dry and overall favorable
marine weather is expected.


lhz361-362-310345-
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-
340 pm edt sat may 30 2026

.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. waves 2 to 4 feet. 
.monday...northeast winds 5 to 10 knots. waves 1 to 3 feet. 
.monday night...light and variable winds becoming north 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.tuesday...north winds 5 to 10 knots backing to the west late in
the afternoon. waves 2 feet or less. 
.wednesday...west winds 5 to 10 knots backing to the south .
waves 2 feet or less. 
.thursday...southwest winds 5 to 10 knots becoming southeast
10 to 15 knots . a chance of showers by midnight. waves 1 to
3 feet building to 2 to 4 feet . 


$$

fzus63 kdtx 301940
glflh 
expires:202605310345;;910332

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 pm 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...high pressure, 30.30 inches, governs great lakes
conditions this weekend into next week. dry and overall favorable
marine weather is expected.


lhz363-462>464-310345-
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-
340 pm edt sat may 30 2026

.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. waves 2 feet or less. 
.monday...northeast winds 5 to 10 knots. waves 1 to 3 feet. 
.monday night...north winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.tuesday...north winds 5 to 10 knots becoming light and variable.
waves 1 to 3 feet. 
.wednesday...light and variable winds becoming north 5 to
10 knots early in the evening...then veering to the south by
midnight. waves 2 feet or less. 
.thursday...southwest winds 5 to 10 knots becoming south 10 to
15 knots . a chance of. waves 1 to 3 feet building to 2 to 4 feet
. 


$$

fzus63 kmkx 302001
glflm 
expires:202605310315;;910825

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
301 pm 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.


lmz261-362-364-366-563-565-567-868-310315-
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-
301 pm cdt sat may 30 2026

sheboygan wi to pentwater mi north...

.tonight...northeast winds 10 to 20 kt veering to south. waves
1 to 3 ft. 
.sunday...south winds 10 to 15 kt becoming southwest. waves 1 to
3 ft. 
.sunday night...southwest winds 10 to 15 kt backing to northeast.
waves 1 to 2 ft. 
.monday...northeast winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft building to 2 to 4 ft. 
.monday night...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tuesday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft. 
.tuesday night...northwest winds 10 to 20 kt backing to south
5 to 10 kt. waves 1 to 2 ft. 
.wednesday...south winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft. 
.thursday...south winds 15 to 25 kt increasing to 30 kt. waves
2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 

$$

fzus63 kmkx 302001
glflm 
expires:202605310315;;910826

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
301 pm 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.


lmz080-669-671-673-675-777-779-870-872-874-876-878-310315-
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-
301 pm cdt sat may 30 2026

sheboygan wi to pentwater mi south...

.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. waves 3 to 5 ft. 
.tuesday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 2 to 4 ft. 
.tuesday night...north winds 10 to 20 kt becoming northeast 5 to
10 kt. waves 1 to 3 ft. 
.wednesday...east winds 5 to 10 kt becoming southeast. waves 1 to
2 ft. 
.thursday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft building to 3 to 5 ft.  

$$

fzus63 kmqt 302001
glfls 
expires:202605310800;;910832

open lake forecast for lake superior
national weather service marquette mi
401 pm 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 30.3 inch high pressure over northern ontario will weaken 
throughout today, 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.




lsz266-310800-
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 sat may 30 2026

.late this afternoon...east winds 5 to 15 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering south late. waves
calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots veering west late. waves
calm to 2 feet. 
.sunday night...north winds less than 10 knots becoming east 5 to
15 knots late. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.monday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.tuesday...east winds 5 to 15 knots becoming southeast less than
10 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...south winds 5 to 15 knots. 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. 
.thursday...south winds 10 to 20 knots becoming southwest 15 to
25 knots. a chance of showers. waves subsiding to calm to 2 feet,
then building to 2 to 4 feet. 

$$

fzus63 kmqt 302001
glfls 
expires:202605310800;;910833

open lake forecast for lake superior
national weather service marquette mi
401 pm 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 30.3 inch high pressure over northern ontario will weaken 
throughout today, 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.




lsz267-310800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt sat may 30 2026

.late this afternoon...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...east winds 5 to 15 knots veering south late. waves
calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots veering northwest late.
waves calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots veering northeast
late. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots becoming north 10 to 20 knots
by mid afternoon. waves calm to 2 feet. 
.monday night...north winds 5 to 15 knots veering northeast after
midnight. waves calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots backing northwest by mid
afternoon. waves calm to 2 feet. 
.tuesday night...north winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots becoming south 10 to
20 knots. waves building to 2 to 4 feet. 
.thursday...south winds 10 to 20 knots veering southwest. a
chance of showers. waves subsiding to calm to 2 feet, then
building to 2 to 4 feet. 

$$

fzus63 kmqt 302001
glfls 
expires:202605310800;;910829

open lake forecast for lake superior
national weather service marquette mi
401 pm 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 30.3 inch high pressure over northern ontario will weaken 
throughout today, 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.




lsz263-310800-
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 sat may 30 2026

.late this afternoon...northeast winds 10 to 20 knots. waves 3 to
5 feet occasionally to 7 feet. 
.tonight...east winds 10 to 20 knots becoming southeast 5 to
15 knots 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...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 10 to 20 knots becoming east 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.tuesday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots becoming south 5 to
15 knots. a chance of showers. waves building to 1 to 3 feet. 
.thursday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers. waves 1 to 3 feet. 

$$

fzus63 kmqt 302001
glfls 
expires:202605310800;;910830

open lake forecast for lake superior
national weather service marquette mi
401 pm 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 30.3 inch high pressure over northern ontario will weaken 
throughout today, 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.




lsz264-310800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt sat may 30 2026

.late this afternoon...east winds 5 to 15 knots. waves 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...southwest winds less than 10 knots. waves calm to
2 feet. 
.sunday night...south winds less than 10 knots backing east after
midnight, then increasing to 5 to 15 knots late. waves calm to
2 feet. 
.monday...east winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...northeast winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.tuesday...east winds less than 10 knots veering southeast by mid
afternoon. waves calm to 2 feet. 
.tuesday night...southeast winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots backing south. waves
building to 1 to 3 feet. 
.thursday...southwest winds 5 to 15 knots veering west. a chance
of showers. waves 1 to 3 feet. 

$$

fzus63 kmqt 302001
glfls 
expires:202605310800;;910828

open lake forecast for lake superior
national weather service marquette mi
401 pm 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 30.3 inch high pressure over northern ontario will weaken 
throughout today, 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.




lsz162-310800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt sat may 30 2026 /301 pm cdt sat may 30 2026/

.late this afternoon...northeast winds 10 to 20 knots. waves 3 to
5 feet occasionally to 7 feet. 
.tonight...northeast winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...north winds 5 to 15 knots veering northeast late.
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 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots becoming north
less than 10 knots after midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots becoming west 10 to
20 knots. a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 302001
glfls 
expires:202605310800;;910831

open lake forecast for lake superior
national weather service marquette mi
401 pm 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 30.3 inch high pressure over northern ontario will weaken 
throughout today, 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.




lsz265-310800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt sat may 30 2026

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

$$