fzus61 kbuf 111402
glflo 
expires:202607112100;;793340

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sat jul 11 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 large 30.2 inch high will build south across the lower 
great lakes through this weekend, before sliding east into new 
england monday, then off the coast by tuesday. this will allow a 
warm front to sweep northeastward across the lake tuesday, followed 
by a cold front pushing south across the lake on wednesday.


loz063>065-112100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt sat jul 11 2026

.this afternoon...northeast winds 10 to 15 knots. waves 2 feet or
less. 
.tonight...northeast winds 5 to 15 knots diminishing to less than
10 knots. waves 2 feet or less. 
.sunday...east winds 10 knots or less becoming north. waves
1 foot or less. 
.sunday night...northwest winds less than 10 knots becoming
southwest. waves 1 foot or less. 
.monday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 25 knots becoming west. waves
3 to 6 feet building to 4 to 7 feet. waves occasionally around
9 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 

$$

fzus61 kbuf 111402
glflo 
expires:202607112100;;793339

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sat jul 11 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 large 30.2 inch high will build south across the lower 
great lakes through this weekend, before sliding east into new 
england monday, then off the coast by tuesday. this will allow a 
warm front to sweep northeastward across the lake tuesday, followed 
by a cold front pushing south across the lake on wednesday.


loz062-112100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt sat jul 11 2026

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

$$

fzus61 kcle 111332
glfle 
expires:202607112015;;792494

open lake forecast for lake erie
national weather service cleveland oh
932 am edt sat jul 11 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...
low pressure of 29.90 inches will move east across the ohio 
valley today. high pressure of 30.10 inches will build over the 
central great lakes on sunday then settle south to the ohio valley
through the first half of next week.


lez162-163-112015-
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-
932 am edt sat jul 11 2026

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

$$

fzus61 kcle 111332
glfle 
expires:202607112015;;792496

open lake forecast for lake erie
national weather service cleveland oh
932 am edt sat jul 11 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...
low pressure of 29.90 inches will move east across the ohio 
valley today. high pressure of 30.10 inches will build over the 
central great lakes on sunday then settle south to the ohio valley
through the first half of next week.


lez061-168-169-112015-
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-
932 am edt sat jul 11 2026

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

$$

fzus61 kcle 111332
glfle 
expires:202607112015;;792495

open lake forecast for lake erie
national weather service cleveland oh
932 am edt sat jul 11 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...
low pressure of 29.90 inches will move east across the ohio 
valley today. high pressure of 30.10 inches will build over the 
central great lakes on sunday then settle south to the ohio valley
through the first half of next week.


lez164>167-112015-
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-
932 am edt sat jul 11 2026

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

$$

fzus63 kdtx 111353
glflh 
expires:202607112200;;793041

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 am edt sat jul 11 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 sitting over the northern great lakes
region will shift southward in the central great lakes through
the weekend. the high pressure system will strengthen slightly to
30.20 inches saturday into sunday, bringing benign marine
conditions.


lhz362-363-112200-
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-
953 am edt sat jul 11 2026

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


$$

fzus63 kdtx 111353
glflh 
expires:202607112200;;793042

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 am edt sat jul 11 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 sitting over the northern great lakes
region will shift southward in the central great lakes through
the weekend. the high pressure system will strengthen slightly to
30.20 inches saturday into sunday, bringing benign marine
conditions.


lhz462>464-112200-
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-
953 am edt sat jul 11 2026

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


$$

fzus63 kdtx 111353
glfsc 
expires:202607112200;;793048

lake st clair forecast
national weather service detroit/pontiac mi
953 am edt sat jul 11 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 sitting over the northern great lakes
region will shift southward in the central great lakes through
the weekend. the high pressure system will strengthen slightly to
30.20 inches saturday into sunday, bringing benign marine
conditions.


lcz460-112200-
lake st clair-
953 am edt sat jul 11 2026

.rest of today...northeast winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. mostly sunny. waves 2 feet or less.
.tonight...northeast winds 10 to 15 knots diminishing to 5 to 10
knots after midnight. mostly clear. waves 2 feet or less.
.sunday...east winds 5 to 10 knots. sunny. waves 2 feet or less.
.sunday night...east winds 5 to 10 knots becoming light and
variable. clear. waves 2 feet or less.
.monday...light and variable winds becoming south 5 to 10 knots in
the afternoon and evening. clear. waves 2 feet or less.
.tuesday...southwest winds 10 to 15 knots. clear. waves 2 feet or
less.
.wednesday...north winds 10 to 15 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 111353
glflh 
expires:202607112200;;793040

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 am edt sat jul 11 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 sitting over the northern great lakes
region will shift southward in the central great lakes through
the weekend. the high pressure system will strengthen slightly to
30.20 inches saturday into sunday, bringing benign marine
conditions.


lhz361-112200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
953 am edt sat jul 11 2026

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


$$

fzus63 kmkx 111346
glflm 
expires:202607112130;;792862

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
846 am cdt sat jul 11 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 over the great lakes today will 
strengthen to 30.2 inches by sunday morning. the high will largely
stay put through the first half of next week, eventually 
weakening and shifting southward by late in the week ahead of an 
approaching trough of low pressure. northerly winds generally 
under 15 knots through today will become southerly across the 
north sunday, while becoming light and variable in the south. 
winds will become southerly across the lake monday, increasing a 
bit by tuesday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-112130-
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-
846 am cdt sat jul 11 2026

sheboygan wi to pentwater mi south...

.rest of today...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 3 ft. 
.tonight...north winds 10 to 20 kt veering to east 10 to 15 kt.
waves 2 to 4 ft. 
.sunday...east winds 5 to 10 kt backing to northwest. waves 1 to
2 ft. 
.sunday night...northeast winds 10 to 15 kt veering to south.
waves 1 ft or less. 
.monday...south winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 to 2 ft. 
.monday night...south winds 10 to 15 kt becoming southwest. waves
1 to 2 ft. 
.tuesday...west winds 10 to 15 kt becoming southwest 10 to 20 kt.
waves 1 to 2 ft. 
.wednesday...west winds 10 to 20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 111346
glflm 
expires:202607112130;;792861

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
846 am cdt sat jul 11 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 over the great lakes today will 
strengthen to 30.2 inches by sunday morning. the high will largely
stay put through the first half of next week, eventually 
weakening and shifting southward by late in the week ahead of an 
approaching trough of low pressure. northerly winds generally 
under 15 knots through today will become southerly across the 
north sunday, while becoming light and variable in the south. 
winds will become southerly across the lake monday, increasing a 
bit by tuesday.


lmz261-362-364-366-563-565-567-868-112130-
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-
846 am cdt sat jul 11 2026

sheboygan wi to pentwater mi north...

.rest of today...east winds 5 to 10 kt becoming north early this
afternoon, then becoming 10 to 20 kt late. waves 1 to 2 ft. 
.tonight...northeast winds 10 to 15 kt veering to south. waves
1 to 2 ft. 
.sunday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.sunday night...southwest winds 10 to 20 kt. waves 2 to 4 ft. 
.monday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft. 
.monday night...southwest winds 15 to 25 kt. waves 2 to 4 ft. 
.tuesday...southwest winds to 30 kt. waves 2 to 4 ft. 
.wednesday...northwest winds 10 to 15 kt becoming north 15 to
25 kt. waves 1 to 3 ft.  

$$

fzus63 kmqt 111401
glfls 
expires:202607112000;;793282

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sat jul 11 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... 

high pressure of 30.0 inches draped from hudson bay to lake superior 
this morning builds to 30.1 inches over the lake by sunday morning. 
this surface high then shifts south toward the lower great lakes as 
pressure falls over the lake to 29.9 inches by midnight on sunday. 
early next week a strong low of around 29.3 inches tracks northeast 
from the upper plains toward hudson bay, keeping pressure over lake 
superior at 29.9 inches through tuesday morning. wednesday, high 
pressure extending from the canadian prairies to the southern 
appalachians weakens slightly as the canadian low deepens to 29.1 
inches in northern quebec. lake superior remains under this high 
pressure wednesday into thursday at 30.0 inches.




lsz162-112000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt sat jul 11 2026 /900 am cdt sat jul 11 2026/

.rest of today...southwest winds 5 to 15 knots backing southeast
late. a slight chance of showers by mid afternoon. waves calm to
2 feet. 
.tonight...southeast winds 5 to 15 knots veering southwest after
midnight. a slight chance of showers and thunderstorms after
midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a slight chance of showers and
thunderstorms. waves calm to 2 feet. 
.sunday night...southwest winds 15 to 25 knots. waves building to
2 to 4 feet, then subsiding to 1 to 3 feet. 
.monday...southwest winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet. 
.monday night...southwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 2 to 4 feet. 
.tuesday...southwest winds 10 to 20 knots veering north. waves
subsiding to calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. waves calm to 2 feet.

$$

fzus63 kmqt 111401
glfls 
expires:202607112000;;793283

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sat jul 11 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... 

high pressure of 30.0 inches draped from hudson bay to lake superior 
this morning builds to 30.1 inches over the lake by sunday morning. 
this surface high then shifts south toward the lower great lakes as 
pressure falls over the lake to 29.9 inches by midnight on sunday. 
early next week a strong low of around 29.3 inches tracks northeast 
from the upper plains toward hudson bay, keeping pressure over lake 
superior at 29.9 inches through tuesday morning. wednesday, high 
pressure extending from the canadian prairies to the southern 
appalachians weakens slightly as the canadian low deepens to 29.1 
inches in northern quebec. lake superior remains under this high 
pressure wednesday into thursday at 30.0 inches.




lsz263-112000-
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-
1000 am edt sat jul 11 2026

.rest of today...southwest winds less than 10 knots increasing to
5 to 15 knots in the afternoon, then backing south late. waves
calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots veering southwest after
midnight. a slight chance of showers and thunderstorms after
midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. a slight chance of
showers and thunderstorms. waves building to 1 to 3 feet. 
.sunday night...southwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday...southwest winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. waves building to 4 to 7 feet
occasionally to 9 feet. 
.monday night...southwest winds 20 to 30 knots. waves subsiding
to 3 to 6 feet occasionally to 8 feet. 
.tuesday...west winds 20 to 30 knots becoming north 10 to
20 knots. waves subsiding to calm to 2 feet. 
.wednesday...north winds 5 to 15 knots veering northeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 111401
glfls 
expires:202607112000;;793284

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sat jul 11 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... 

high pressure of 30.0 inches draped from hudson bay to lake superior 
this morning builds to 30.1 inches over the lake by sunday morning. 
this surface high then shifts south toward the lower great lakes as 
pressure falls over the lake to 29.9 inches by midnight on sunday. 
early next week a strong low of around 29.3 inches tracks northeast 
from the upper plains toward hudson bay, keeping pressure over lake 
superior at 29.9 inches through tuesday morning. wednesday, high 
pressure extending from the canadian prairies to the southern 
appalachians weakens slightly as the canadian low deepens to 29.1 
inches in northern quebec. lake superior remains under this high 
pressure wednesday into thursday at 30.0 inches.




lsz264-112000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt sat jul 11 2026

.rest of today...southwest winds less than 10 knots backing south
late. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots veering southwest late. a
slight chance of showers and thunderstorms after midnight. waves
calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. a slight chance of
showers and thunderstorms. waves calm to 2 feet. 
.sunday night...southwest winds 15 to 25 knots becoming west
20 to 30 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday...west winds 15 to 25 knots backing southwest by mid
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.monday night...southwest winds 20 to 30 knots veering west after
midnight. waves building to 4 to 7 feet occasionally to 9 feet. 
.tuesday...west winds 20 to 30 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet. 
.wednesday...north winds 5 to 15 knots backing northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 111401
glfls 
expires:202607112000;;793285

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sat jul 11 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... 

high pressure of 30.0 inches draped from hudson bay to lake superior 
this morning builds to 30.1 inches over the lake by sunday morning. 
this surface high then shifts south toward the lower great lakes as 
pressure falls over the lake to 29.9 inches by midnight on sunday. 
early next week a strong low of around 29.3 inches tracks northeast 
from the upper plains toward hudson bay, keeping pressure over lake 
superior at 29.9 inches through tuesday morning. wednesday, high 
pressure extending from the canadian prairies to the southern 
appalachians weakens slightly as the canadian low deepens to 29.1 
inches in northern quebec. lake superior remains under this high 
pressure wednesday into thursday at 30.0 inches.




lsz265-112000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt sat jul 11 2026

.rest of today...south winds 5 to 15 knots backing east late.
waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots veering south after
midnight, then becoming southwest 10 to 20 knots late. waves calm
to 2 feet. 
.sunday...southwest winds 5 to 15 knots backing south in the
afternoon. a slight chance of showers. a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.sunday night...southwest winds 15 to 25 knots veering west after
midnight. waves building to 2 to 4 feet. 
.monday...west winds 15 to 25 knots diminishing to 10 to 20 knots
by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...southwest winds 15 to 25 knots becoming west
20 to 30 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.tuesday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet. 
.wednesday...north winds 5 to 15 knots backing northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 111401
glfls 
expires:202607112000;;793286

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sat jul 11 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... 

high pressure of 30.0 inches draped from hudson bay to lake superior 
this morning builds to 30.1 inches over the lake by sunday morning. 
this surface high then shifts south toward the lower great lakes as 
pressure falls over the lake to 29.9 inches by midnight on sunday. 
early next week a strong low of around 29.3 inches tracks northeast 
from the upper plains toward hudson bay, keeping pressure over lake 
superior at 29.9 inches through tuesday morning. wednesday, high 
pressure extending from the canadian prairies to the southern 
appalachians weakens slightly as the canadian low deepens to 29.1 
inches in northern quebec. lake superior remains under this high 
pressure wednesday into thursday at 30.0 inches.




lsz266-112000-
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-
1000 am edt sat jul 11 2026

.rest of today...south winds 5 to 15 knots backing east late.
waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots increasing to 10 to 20 knots
after midnight. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots becoming south 5 to
15 knots in the afternoon. a slight chance of showers and
thunderstorms. waves calm to 2 feet. 
.sunday night...south winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday...west winds 15 to 25 knots backing southwest by mid
afternoon. waves 3 to 5 feet occasionally to 7 feet. 
.monday night...southwest winds 20 to 30 knots veering west after
midnight. waves building to 4 to 7 feet occasionally to 9 feet. 
.tuesday...west winds 20 to 30 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots. waves calm to 2 feet.

$$

fzus63 kmqt 111401
glfls 
expires:202607112000;;793287

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sat jul 11 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... 

high pressure of 30.0 inches draped from hudson bay to lake superior 
this morning builds to 30.1 inches over the lake by sunday morning. 
this surface high then shifts south toward the lower great lakes as 
pressure falls over the lake to 29.9 inches by midnight on sunday. 
early next week a strong low of around 29.3 inches tracks northeast 
from the upper plains toward hudson bay, keeping pressure over lake 
superior at 29.9 inches through tuesday morning. wednesday, high 
pressure extending from the canadian prairies to the southern 
appalachians weakens slightly as the canadian low deepens to 29.1 
inches in northern quebec. lake superior remains under this high 
pressure wednesday into thursday at 30.0 inches.




lsz267-112000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt sat jul 11 2026

.rest of today...southeast winds 5 to 15 knots backing east late.
waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots becoming south 10 to
20 knots after midnight. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon. a slight chance of showers. a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.sunday night...south winds 10 to 20 knots veering southwest
after midnight. a slight chance of thunderstorms through
midnight. a chance of showers. waves building to 1 to 3 feet. 
.monday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.monday night...south winds 5 to 15 knots becoming west 10 to
20 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.tuesday...west winds 10 to 20 knots becoming northwest 5 to
15 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to calm to 2 feet. 
.wednesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 

$$