fzus61 kbuf 100202
glflo 
expires:202607100900;;707276

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt thu jul 9 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 weak cold front will cross the lake tonight through 
early friday. another 30.0 inch high will then build across the 
upper great lakes friday and the lower great lakes over the weekend, 
expanding east into new england monday, then drifting south into the 
mid-atlantic tuesday. this will allow for a warm front to pass 
across the lake tuesday.


loz063>065-100900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt thu jul 9 2026

.overnight...west winds 5 to 10 knots becoming northwest. a
chance of showers late. waves 1 foot or less. 
.friday...northwest winds less than 10 knots. a chance of showers
early. waves 1 foot or less. 
.friday night...northwest winds 10 knots or less becoming
northeast 10 to 15 knots. waves 2 feet or less. 
.saturday...northeast winds 5 to 15 knots. waves 2 feet or less. 
.saturday night...north winds 10 knots or less becoming
northeast. waves 1 foot or less. 
.sunday...northeast winds 10 knots or less becoming south. waves
1 foot or less. 
.monday...south winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.tuesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 

$$

fzus61 kbuf 100202
glflo 
expires:202607100900;;707275

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt thu jul 9 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 weak cold front will cross the lake tonight through 
early friday. another 30.0 inch high will then build across the 
upper great lakes friday and the lower great lakes over the weekend, 
expanding east into new england monday, then drifting south into the 
mid-atlantic tuesday. this will allow for a warm front to pass 
across the lake tuesday.


loz062-100900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt thu jul 9 2026

.overnight...southwest winds 10 knots or less becoming
northwest. a chance of showers. waves 1 foot or less. 
.friday...north winds less than 10 knots. waves 1 foot or less. 
.friday night...light and variable winds becoming northeast 5 to
10 knots. waves 1 foot or less. 
.saturday...northeast winds 10 knots or less becoming east. waves
2 feet or less. 
.saturday night...northeast winds less than 10 knots. waves
1 foot or less. 
.sunday...light and variable winds. waves 1 foot or less. 
.monday...southwest winds 10 knots or less. waves 2 feet or less.
.tuesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 

$$

fzus61 kcle 100159
glfle 
expires:202607100815;;707152

open lake forecast for lake erie
national weather service cleveland oh
959 pm edt thu jul 9 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...
a weak cold front will begin to settle across lake erie overnight.
this front will push south of the lakeshore on friday. high 
pressure 30.10 inches returns for this weekend and will persist 
into early next week.


lez162>164-100815-
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-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
959 pm edt thu jul 9 2026

.overnight...southwest winds 5 to 10 knots becoming west. a
slight chance of showers and thunderstorms. waves 1 foot or less.
.friday...northwest winds 10 knots or less becoming northeast. a
slight chance of showers and thunderstorms early, then a chance
of showers with a slight chance of thunderstorms from late
morning on. waves 1 foot or less. 
.friday night...northeast winds 10 knots or less. a chance of
showers. waves 2 feet or less. 
.saturday...northeast winds 10 to 15 knots. waves 1 to 2 feet. 
.saturday night...northeast winds 5 to 10 knots becoming east.
waves 2 feet or less. 
.sunday...east winds 5 to 10 knots. waves 2 feet or less. 
.monday...east winds 10 knots or less becoming southwest. waves
1 foot or less. 
.tuesday...west winds 5 to 15 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 100159
glfle 
expires:202607100815;;707153

open lake forecast for lake erie
national weather service cleveland oh
959 pm edt thu jul 9 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...
a weak cold front will begin to settle across lake erie overnight.
this front will push south of the lakeshore on friday. high 
pressure 30.10 inches returns for this weekend and will persist 
into early next week.


lez061-165>169-100815-
ripley to buffalo ny extending from 5nm 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-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-
959 pm edt thu jul 9 2026

.overnight...southwest winds 5 to 10 knots. a slight chance
of showers and thunderstorms. waves 2 feet or less. 
.friday...west winds 10 knots or less becoming northwest. a
chance of showers with a slight chance of thunderstorms through
early afternoon, then a slight chance of showers and
thunderstorms late. waves 2 feet or less. 
.friday night...northwest winds 5 to 10 knots becoming northeast.
waves 2 feet or less. 
.saturday...northeast winds 10 to 15 knots. waves 2 feet or less.
.saturday night...northeast winds 5 to 15 knots becoming east.
waves 2 feet or less. 
.sunday...east winds 5 to 15 knots. waves 2 feet or less. 
.monday...northwest 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. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 100222
glfsc 
expires:202607101030;;708181

lake st clair forecast
national weather service detroit/pontiac mi
1022 pm edt thu jul 9 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...a cold front stalls across the southern great lakes
friday morning, maintaining a chance for showers and
thunderstorms near lake st. clair and western lake erie.
meanwhile, high pressure develops over the northern great lakes.
this high migrates southward into the central great lakes through
this weekend, strengthening slightly to 30.20 inches while
offering benign conditions.


lcz460-101030-
lake st clair-
1022 pm edt thu jul 9 2026

.rest of tonight...southwest winds 5 to 10 knots veering to the
northwest after midnight. mostly cloudy becoming partly cloudy after
midnight becoming mostly cloudy. scattered showers and thunderstorms
this evening. waves 2 feet or less.
.friday...northeast winds 5 to 10 knots. partly sunny. a chance of
light showers late in the afternoon. waves 2 feet or less.
.friday night...northeast winds 10 to 15 knots becoming north 5 to
10 knots after midnight. partly cloudy. waves 2 feet or less.
.saturday...north winds 10 to 15 knots becoming northeast 5 to 10
knots in the late morning and afternoon. partly sunny. waves 2 feet
or less.
.saturday night...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. clear. waves 2 feet or less.
.monday...south winds 5 to 10 knots. clear. waves 2 feet or less.
.tuesday...southwest winds 10 to 15 knots. clear. waves 2 feet or
less.

$$

fzus63 kdtx 100206
glflh 
expires:202607101015;;707439

open lake forecast for lake huron
national weather service detroit/pontiac mi
1006 pm edt thu jul 9 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...a cold front stalls across the southern great lakes
friday morning, maintaining a chance for showers and
thunderstorms near lake st. clair and western lake erie.
meanwhile, high pressure develops over the northern great lakes.
this high migrates southward into the central great lakes through
this weekend, strengthening slightly to 30.20 inches while
offering benign conditions.


lhz362-363-101015-
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-
1006 pm edt thu jul 9 2026

.rest of tonight...light and variable winds. waves 2 feet or
less. 
.friday...light and variable winds. waves 2 feet or less. 
.friday night...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 
.saturday night...light and variable winds. waves 2 feet or less.
.sunday...light and variable winds becoming southeast 5 to
10 knots. waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots. waves 2 to 4 feet. 


$$

fzus63 kdtx 100206
glflh 
expires:202607101015;;707438

open lake forecast for lake huron
national weather service detroit/pontiac mi
1006 pm edt thu jul 9 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...a cold front stalls across the southern great lakes
friday morning, maintaining a chance for showers and
thunderstorms near lake st. clair and western lake erie.
meanwhile, high pressure develops over the northern great lakes.
this high migrates southward into the central great lakes through
this weekend, strengthening slightly to 30.20 inches while
offering benign conditions.


lhz361-101015-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
1006 pm edt thu jul 9 2026

.rest of tonight...northwest winds 5 to 10 knots. waves 2 feet or
less. 
.friday...north winds 5 to 10 knots in the morning becoming light
and variable. waves 2 feet or less. 
.friday night...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds becoming east 5 to 10 knots
early in the afternoon. waves 2 feet or less. 
.saturday night...light and variable winds becoming south 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.sunday...south winds 5 to 10 knots backing to the east late in
the afternoon...then veering to the southwest late in the
evening. waves 2 feet or less. 
.monday...southwest winds 10 to 15 knots. waves 1 to 3 feet
building to 3 to 5 feet by midnight. 
.tuesday...west winds 15 to 20 knots decreasing to 10 to 15 knots
by midnight. waves 3 to 5 feet. 


$$

fzus63 kdtx 100206
glflh 
expires:202607101015;;707440

open lake forecast for lake huron
national weather service detroit/pontiac mi
1006 pm edt thu jul 9 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...a cold front stalls across the southern great lakes
friday morning, maintaining a chance for showers and
thunderstorms near lake st. clair and western lake erie.
meanwhile, high pressure develops over the northern great lakes.
this high migrates southward into the central great lakes through
this weekend, strengthening slightly to 30.20 inches while
offering benign conditions.


lhz462>464-101015-
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-
1006 pm edt thu jul 9 2026

.rest of tonight...light and variable winds becoming north 5 to
10 knots early in the morning. scattered showers and
thunderstorms this evening. waves 2 feet or less. 
.friday...north winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon. waves 2 feet or less. 
.friday night...north winds 10 to 15 knots becoming northeast
5 to 10 knots in the late evening and overnight. waves 1 to
3 feet. 
.saturday...north winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...northeast winds 5 to 10 knots  becoming light
and variable. waves 1 to 3 feet. 
.sunday...light and variable winds becoming southeast 5 to
10 knots late in the evening. waves 2 feet or less. 
.monday...south winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...southwest winds 5 to 10 knots becoming west 10 to
15 knots . waves 1 to 3 feet building to 2 to 4 feet . 


$$

fzus63 kmkx 100201
glflm 
expires:202607100930;;707245

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
901 pm cdt thu jul 9 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...

northwesterly winds will gradually shift northerly and diminish
tonight, with fog developing across the majority of the lake as
winds diminish. patchy dense fog is possible, especially in the
southern half of the lake. winds will remain north to northeast 
on friday, as high pressure around 30.0 inches builds into the the
region from the north. the high should shift southeast over the 
weekend. light and variable winds are expected through the
weekend. high pressure exits to the east into early next week,
allowing for winds to shift to southwesterly into tuesday.


lmz261-362-364-366-563-565-567-868-100930-
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-
901 pm cdt thu jul 9 2026

sheboygan wi to pentwater mi north...

.rest of tonight...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.friday...northeast winds 5 to 10 kt becoming north 10 to 20 kt.
waves 1 to 3 ft. 
.friday night...north winds 10 to 20 kt diminishing to 10 to
15 kt late in the evening, then becoming northeast after midnight
becoming northeast 5 to 10 kt late. waves 1 to 3 ft subsiding to
1 to 2 ft. 
.saturday...east winds 5 to 10 kt becoming northeast 10 to 20 kt
in the afternoon. waves 1 to 2 ft. 
.saturday night...east winds 10 to 15 kt veering to south 5 to
10 kt. waves 1 to 2 ft. 
.sunday...south winds 10 to 15 kt becoming southwest 10 to 20 kt.
waves 1 to 2 ft. 
.sunday night...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.monday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to 30 kt. waves
3 to 5 ft.  

$$

fzus63 kmkx 100201
glflm 
expires:202607100930;;707246

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
901 pm cdt thu jul 9 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...

northwesterly winds will gradually shift northerly and diminish
tonight, with fog developing across the majority of the lake as
winds diminish. patchy dense fog is possible, especially in the
southern half of the lake. winds will remain north to northeast 
on friday, as high pressure around 30.0 inches builds into the the
region from the north. the high should shift southeast over the 
weekend. light and variable winds are expected through the
weekend. high pressure exits to the east into early next week,
allowing for winds to shift to southwesterly into tuesday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-100930-
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-
901 pm cdt thu jul 9 2026

sheboygan wi to pentwater mi south...

.rest of tonight...north winds 10 to 15 kt diminishing to 5 to
10 kt. chance of showers and slight chance of thunderstorms
through early evening. patchy fog overnight. waves 1 to 2 ft. 
.friday...northeast winds 5 to 10 kt becoming north 10 to 20 kt.
waves 1 to 3 ft. 
.friday night...north winds 10 to 20 kt becoming northeast 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.saturday...northeast winds 5 to 10 kt becoming north 10 to 20 kt
in the afternoon. waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 15 kt becoming east 5 to
10 kt. waves 1 to 3 ft. 
.sunday...east winds 5 to 10 kt becoming northeast. waves 1 ft or
less. 
.sunday night...northeast winds 5 to 10 kt veering to south.
waves 1 ft or less. 
.monday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.tuesday...west winds 10 to 15 kt becoming southwest 10 to 20 kt.
waves 1 to 3 ft.  

$$

fzus63 kmqt 100251
glfls 
expires:202607101100;;709104

open lake forecast for lake superior
national weather service marquette mi
1051 pm edt thu jul 9 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... 

weak high pressure of 30.0 inches extends over lake superior from 
hudson bay and northern ontario tonight into friday. high pressure 
builds to 30.1 to 30.2 inches over the lake this weekend as the high 
shifts south to the lower great lakes through sunday. a strong low 
of around 29.3 inches looks to cross into hudson bay early next week.




lsz267-101100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1051 pm edt thu jul 9 2026

...dense fog advisory in effect until 11 am edt friday...

.rest of tonight...northwest winds 5 to 15 knots. areas of dense
fog. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots backing northwest in the
afternoon. patchy dense fog through early afternoon. waves calm
to 2 feet. 
.friday night...north winds 5 to 15 knots veering south after
midnight, then backing southeast late. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.monday...southwest winds 5 to 15 knots increasing to 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 
.tuesday...west winds 10 to 20 knots becoming northwest 5 to
15 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 100251
glfls 
expires:202607101100;;709099

open lake forecast for lake superior
national weather service marquette mi
1051 pm edt thu jul 9 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... 

weak high pressure of 30.0 inches extends over lake superior from 
hudson bay and northern ontario tonight into friday. high pressure 
builds to 30.1 to 30.2 inches over the lake this weekend as the high 
shifts south to the lower great lakes through sunday. a strong low 
of around 29.3 inches looks to cross into hudson bay early next week.




lsz162-101100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1051 pm edt thu jul 9 2026 /951 pm cdt thu jul 9 2026/

...dense fog advisory in effect until 11 am edt /10 am cdt/
friday...

.rest of tonight...north winds less than 10 knots. areas of dense
fog. waves calm to 2 feet. 
.friday...north winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon, then veering east late. patchy dense
fog through early afternoon. waves calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots diminishing to less
than 10 knots after midnight, then backing north late. a slight
chance of showers and thunderstorms after midnight. waves calm to
2 feet. 
.saturday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.saturday night...east winds less than 10 knots becoming
southwest 5 to 15 knots after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.sunday night...southwest winds 10 to 20 knots. waves building to
1 to 3 feet. 
.monday...southwest winds 20 to 30 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.tuesday...southwest winds 15 to 25 knots becoming north 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 100251
glfls 
expires:202607101100;;709100

open lake forecast for lake superior
national weather service marquette mi
1051 pm edt thu jul 9 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... 

weak high pressure of 30.0 inches extends over lake superior from 
hudson bay and northern ontario tonight into friday. high pressure 
builds to 30.1 to 30.2 inches over the lake this weekend as the high 
shifts south to the lower great lakes through sunday. a strong low 
of around 29.3 inches looks to cross into hudson bay early next week.




lsz263-101100-
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-
1051 pm edt thu jul 9 2026

...dense fog advisory in effect until 11 am edt friday...

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

$$

fzus63 kmqt 100251
glfls 
expires:202607101100;;709101

open lake forecast for lake superior
national weather service marquette mi
1051 pm edt thu jul 9 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... 

weak high pressure of 30.0 inches extends over lake superior from 
hudson bay and northern ontario tonight into friday. high pressure 
builds to 30.1 to 30.2 inches over the lake this weekend as the high 
shifts south to the lower great lakes through sunday. a strong low 
of around 29.3 inches looks to cross into hudson bay early next week.




lsz264-101100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1051 pm edt thu jul 9 2026

...dense fog advisory in effect until 11 am edt friday...

.rest of tonight...west winds less than 10 knots veering
northwest after midnight, then veering northeast late. areas of
dense fog. waves calm to 2 feet. 
.friday...east winds less than 10 knots veering southeast in the
afternoon, then increasing to 5 to 15 knots late. areas of dense
fog through early afternoon. waves calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots. a chance of
showers. a slight chance of thunderstorms after midnight. waves
calm to 2 feet. 
.saturday...southeast winds less than 10 knots. waves calm to
2 feet. 
.saturday night...southeast winds less than 10 knots becoming
southwest 5 to 15 knots after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves building to 2 to 4 feet. 
.monday...southwest winds 15 to 25 knots becoming west 20 to
30 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday...west winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 100251
glfls 
expires:202607101100;;709102

open lake forecast for lake superior
national weather service marquette mi
1051 pm edt thu jul 9 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... 

weak high pressure of 30.0 inches extends over lake superior from 
hudson bay and northern ontario tonight into friday. high pressure 
builds to 30.1 to 30.2 inches over the lake this weekend as the high 
shifts south to the lower great lakes through sunday. a strong low 
of around 29.3 inches looks to cross into hudson bay early next week.




lsz265-101100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1051 pm edt thu jul 9 2026

...dense fog advisory in effect until 11 am edt friday...

.rest of tonight...southwest winds 5 to 15 knots veering west
after midnight, then veering north late. patchy dense fog. waves
calm to 2 feet. 
.friday...east winds 5 to 15 knots veering southeast late. areas
of dense fog through early afternoon. waves calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a slight chance of showers and
thunderstorms after midnight. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.sunday night...south winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. waves building to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots increasing to 20 to
30 knots. waves subsiding to calm to 2 feet, then building to
3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 100251
glfls 
expires:202607101100;;709103

open lake forecast for lake superior
national weather service marquette mi
1051 pm edt thu jul 9 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... 

weak high pressure of 30.0 inches extends over lake superior from 
hudson bay and northern ontario tonight into friday. high pressure 
builds to 30.1 to 30.2 inches over the lake this weekend as the high 
shifts south to the lower great lakes through sunday. a strong low 
of around 29.3 inches looks to cross into hudson bay early next week.




lsz266-101100-
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-
1051 pm edt thu jul 9 2026

...dense fog advisory in effect until 11 am edt friday...

.rest of tonight...northwest winds 5 to 15 knots veering north
late. areas of dense fog. waves calm to 2 feet. 
.friday...northeast winds 5 to 15 knots veering southeast in the
afternoon. areas of dense fog through early afternoon. waves calm
to 2 feet. 
.friday night...southeast winds 5 to 15 knots. a slight chance of
showers after midnight. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...south winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. waves building to 2 to 4 feet. 
.monday...southwest winds 10 to 20 knots increasing to 20 to
30 knots. waves building to 4 to 7 feet occasionally to 9 feet. 
.tuesday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$