fzus61 kbuf 082001
glflo 
expires:202607090300;;637276

open lake forecast for lake ontario
national weather service buffalo ny
401 pm edt wed jul 8 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 broad 30.1 inch high will remain over the lower great 
lakes through wednesday night while slowly drifting southeast toward 
the delmarva. a weak cold front will cross the lake thursday night 
through early friday, while another 30.1 inch high builds across the 
upper great lakes friday, then expands across the lower great lakes 
later friday night through the weekend.


loz062-090300-
lake ontario open waters from the niagara river to hamlin beach-
401 pm edt wed jul 8 2026

.tonight...southeast winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots becoming west. a chance
of showers and thunderstorms early in the afternoon. showers
likely with a chance of thunderstorms late. waves 1 foot or less.
.thursday night...west winds 5 to 10 knots. showers with a chance
of thunderstorms in the evening, then showers likely overnight.
waves 1 foot or less. 
.friday...northwest winds less than 10 knots becoming west.
showers likely in the morning. waves 1 foot or less. 
.friday night...west winds 10 knots or less becoming northeast.
waves 2 feet or less. 
.saturday...northeast winds 10 knots or less. waves 2 feet or
less. 
.sunday...east winds 10 knots or less becoming southwest. waves
1 foot or less. 
.monday...southwest winds 5 to 10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 082001
glflo 
expires:202607090300;;637277

open lake forecast for lake ontario
national weather service buffalo ny
401 pm edt wed jul 8 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 broad 30.1 inch high will remain over the lower great 
lakes through wednesday night while slowly drifting southeast toward 
the delmarva. a weak cold front will cross the lake thursday night 
through early friday, while another 30.1 inch high builds across the 
upper great lakes friday, then expands across the lower great lakes 
later friday night through the weekend.


loz063>065-090300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
401 pm edt wed jul 8 2026

.tonight...south winds 10 knots or less becoming southwest. waves
1 foot or less. 
.thursday...southwest winds 5 to 10 knots becoming west. a chance
of showers and thunderstorms late. waves 1 foot or less. 
.thursday night...west winds 5 to 10 knots. showers with a chance
of thunderstorms in the evening, then showers overnight. waves
1 foot or less. 
.friday...northwest winds 5 to 10 knots becoming west. showers
likely in the morning. waves 1 foot or less. 
.friday night...northwest winds 5 to 10 knots becoming north.
waves 1 foot or less. 
.saturday...northeast winds 10 knots or less. waves 2 feet or
less. 
.sunday...east winds 10 knots or less becoming south. waves
1 foot or less. 
.monday...southwest winds 5 to 10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 081947
glfle 
expires:202607090230;;636935

open lake forecast for lake erie
national weather service cleveland oh
347 pm edt wed jul 8 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
high pressure 30.10 inches will linger over lake erie into thursday 
before a cold front drops south across the lake late thursday into 
friday. high pressure 30.10 inches returns this weekend and will 
persist into early next week.


lez162>164-090230-
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-
347 pm edt wed jul 8 2026

.tonight...variable winds 10 knots or less becoming south. waves 
1 foot or less. 
.thursday...southwest winds 5 to 10 knots. a chance of showers
and thunderstorms in the afternoon. waves 1 foot or less. 
.thursday night...west winds 5 to 10 knots. a chance of showers
and thunderstorms. waves 1 foot or less. 
.friday...west winds 10 knots or less becoming north. a chance of
showers. waves 1 foot or less. 
.friday night...northeast winds 5 to 10 knots. a chance of
showers in the evening. waves 1 foot or less. 
.saturday...northeast winds 5 to 15 knots becoming east. waves
2 feet or less. 
.sunday...east winds 5 to 10 knots. waves 1 foot or less. 
.monday...north winds 5 to 10 knots becoming west. waves 1 foot
or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 081947
glfle 
expires:202607090230;;636936

open lake forecast for lake erie
national weather service cleveland oh
347 pm edt wed jul 8 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
high pressure 30.10 inches will linger over lake erie into thursday 
before a cold front drops south across the lake late thursday into 
friday. high pressure 30.10 inches returns this weekend and will 
persist into early next week.


lez061-165>169-090230-
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-
347 pm edt wed jul 8 2026

.tonight...variable winds 10 knots or less becoming southwest.  
waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...west winds 5 to 10 knots. a chance of showers
and thunderstorms in the evening, then showers likely with a
chance of thunderstorms overnight. waves 1 to 2 feet. 
.friday...west winds 10 knots or less becoming northwest. showers
likely in the morning, then a chance of showers in the afternoon.
waves 2 feet or less. 
.friday night...northwest winds 10 knots or less becoming
northeast. waves 1 foot or less. 
.saturday...northeast winds 5 to 15 knots becoming east. waves
2 feet or less. 
.sunday...east winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.monday...southwest winds 5 to 10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 081959
glfsc 
expires:202607090400;;637130

lake st clair forecast
national weather service detroit/pontiac mi
359 pm edt wed jul 8 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 will wash out across the appalachia
region today which will veer winds to the south and southwest
over the great lakes. a cold front will then push through the
great lakes thursday and bring increasing coverage of showers and
embedded thunderstorms. lingering shower and storm chances
continue friday across the southern great lakes.


lcz460-090400-
lake st clair-
359 pm edt wed jul 8 2026

.tonight...southwest winds 5 to 10 knots veering to the west early
in the morning. mostly clear. waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots. partly sunny. a chance of
showers and thunderstorms early in the afternoon. light showers
likely and a chance of thunderstorms late in the afternoon. waves 2
feet or less.
.thursday night...west winds 5 to 10 knots veering to the north
after midnight. partly cloudy early in the evening becoming mostly
cloudy. light showers likely early in the evening. a chance of
thunderstorms. a chance of light showers in the late evening and
overnight. waves 2 feet or less.
.friday...north winds 5 to 10 knots. partly sunny. waves 2 feet or
less.
.friday night...northeast winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. mostly clear. waves 2 feet or less.
.saturday...northeast winds 10 to 15 knots. mostly clear. waves 2
feet or less.
.sunday...southeast winds 5 to 10 knots. mostly clear. waves 2 feet
or less.
.monday...south winds 5 to 10 knots. clear. waves 2 feet or less.

$$

fzus63 kdtx 081958
glflh 
expires:202607090400;;637079

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 pm edt wed jul 8 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 will wash out across the appalachia
region today which will veer winds to the south and southwest
over the great lakes. a cold front will then push through the
great lakes thursday and bring increasing coverage of showers and
embedded thunderstorms. lingering shower and storm chances
continue friday across the southern great lakes.


lhz361-090400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
358 pm edt wed jul 8 2026

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


$$

fzus63 kdtx 081958
glflh 
expires:202607090400;;637081

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 pm edt wed jul 8 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 will wash out across the appalachia
region today which will veer winds to the south and southwest
over the great lakes. a cold front will then push through the
great lakes thursday and bring increasing coverage of showers and
embedded thunderstorms. lingering shower and storm chances
continue friday across the southern great lakes.


lhz462>464-090400-
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-
358 pm edt wed jul 8 2026

.tonight...southeast winds 5 to 10 knots veering to the southwest
after midnight...then veering to the northwest early in the
morning. a chance of showers and thunderstorms in the evening...
then a chance of showers after midnight. waves 2 feet or less. 
.thursday...southwest winds 5 to 10 knots backing to the south in
the late morning and early afternoon...then veering to the south
5 to 10 knots late in the afternoon. a chance of showers in the
morning...then a chance of showers and thunderstorms in the
afternoon. waves 2 feet or less. 
.thursday night...light and variable winds becoming north 5 to
10 knots after midnight. a chance of showers in the evening.
waves 2 feet or less. 
.friday...north winds 5 to 10 knots. 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...northeast winds 5 to 10 knots. waves 2 feet or less. 
.sunday...light and variable winds becoming southeast 5 to
10 knots early in the evening...then veering to the south by
midnight. waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots backing to the south .
waves 2 feet or less. 


$$

fzus63 kdtx 081958
glflh 
expires:202607090400;;637080

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 pm edt wed jul 8 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 will wash out across the appalachia
region today which will veer winds to the south and southwest
over the great lakes. a cold front will then push through the
great lakes thursday and bring increasing coverage of showers and
embedded thunderstorms. lingering shower and storm chances
continue friday across the southern great lakes.


lhz362-363-090400-
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-
358 pm edt wed jul 8 2026

.tonight...south winds 5 to 10 knots in the evening becoming
light and variable. a chance of showers and thunderstorms in the
evening...then a chance of showers after midnight. waves 2 feet
or less. 
.thursday...light and variable winds. showers likely in the
morning...then a chance of showers in the afternoon. waves 2 feet
or less. 
.thursday night...light and variable winds becoming northwest
5 to 10 knots after midnight. waves 2 feet or less. 
.friday...north winds 5 to 10 knots. 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. 
.sunday...light and variable winds becoming south 5 to 10 knots.
waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots backing to the south .
waves 1 to 3 feet. 


$$

fzus63 kmkx 081907
glflm 
expires:202607090315;;635467

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
207 pm cdt wed jul 8 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 around 30.1 inches will remain over the ohio valley
today and tonight. modest south winds will continue this afternoon,
as weak low pressure around 29.8 inches and an accompanying cold 
front approaches from upper michigan and northwest wisconsin. 
light to modest southerly winds tonight will become north behind 
the frontal passage thursday into thursday night. winds will 
become north to northeast on friday, as high pressure around 30.1 
inches builds into the the region. the high should continue to 
bring light to modest winds for the weekend.


lmz563-565-567-090315-
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-
207 pm cdt wed jul 8 2026

rock island passage to charlevoix mi south to sheboygan wi to
pentwater mi...

...severe thunderstorm watch 471 in effect until 10 pm cdt this
evening...

.tonight...south winds 10 to 15 kt becoming southwest 5 to 10 kt.
patchy fog. numerous showers and scattered thunderstorms this
evening, then showers likely with slight chance of thunderstorms
overnight. waves 1 to 3 ft. 
.thursday...northwest winds 10 to 15 kt veering to northeast 5 to
10 kt. patchy fog in the morning. chance of showers and slight
chance of thunderstorms in the morning, then slight chance of
showers in the afternoon. waves 1 to 2 ft. 
.thursday night...north winds 5 to 10 kt. waves 1 to 2 ft. 
.friday...northeast winds 10 to 15 kt. waves 1 to 2 ft. 
.friday night...northeast winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.saturday...east winds 5 to 10 kt becoming northeast. waves 1 ft
or less. 
.saturday night...east winds 5 to 10 kt veering to south. waves
nearly calm. 
.sunday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 2 ft. 
.monday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 081907
glflm 
expires:202607090315;;635469

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
207 pm cdt wed jul 8 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 around 30.1 inches will remain over the ohio valley
today and tonight. modest south winds will continue this afternoon,
as weak low pressure around 29.8 inches and an accompanying cold 
front approaches from upper michigan and northwest wisconsin. 
light to modest southerly winds tonight will become north behind 
the frontal passage thursday into thursday night. winds will 
become north to northeast on friday, as high pressure around 30.1 
inches builds into the the region. the high should continue to 
bring light to modest winds for the weekend.


lmz669-090315-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
207 pm cdt wed jul 8 2026

sheboygan wi to pentwater mi south to port washington wi to
whitehall mi...

...severe thunderstorm watch 471 in effect until 10 pm cdt this
evening...

.tonight...south winds 10 to 20 kt becoming southwest 5 to 10 kt.
numerous showers and scattered thunderstorms this evening, then
showers likely with a chance of thunderstorms overnight. patchy
fog overnight. waves 1 to 2 ft. 
.thursday...southwest winds 5 to 10 kt veering to northeast.
chance of showers and thunderstorms in the morning, then slight
chance of showers and thunderstorms in the afternoon. waves 1 to
2 ft. 
.thursday night...north winds 5 to 10 kt increasing to 10 to
15 kt. waves 1 to 2 ft. 
.friday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.friday night...north winds 10 to 20 kt becoming northeast 10 to
15 kt. waves 1 to 3 ft. 
.saturday...northeast winds 5 to 10 kt. waves 1 to 2 ft. 
.saturday night...northeast winds 5 to 10 kt becoming east. waves
1 ft or less. 
.sunday...south winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 ft or less. 
.monday...west winds 5 to 10 kt becoming south 10 to 15 kt. waves
1 to 2 ft.  

$$

fzus63 kmkx 081907
glflm 
expires:202607090315;;635466

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
207 pm cdt wed jul 8 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 around 30.1 inches will remain over the ohio valley
today and tonight. modest south winds will continue this afternoon,
as weak low pressure around 29.8 inches and an accompanying cold 
front approaches from upper michigan and northwest wisconsin. 
light to modest southerly winds tonight will become north behind 
the frontal passage thursday into thursday night. winds will 
become north to northeast on friday, as high pressure around 30.1 
inches builds into the the region. the high should continue to 
bring light to modest winds for the weekend.


lmz261-362-364-366-868-090315-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
207 pm cdt wed jul 8 2026

rock island passage to charlevoix mi north...

.tonight...southwest winds 10 to 20 kt diminishing to 10 to 15 kt
late this evening, then diminishing to 5 to 10 kt after midnight
backing to east late. patchy fog. numerous showers and scattered
thunderstorms this evening, then showers likely with scattered
thunderstorms overnight. waves 1 to 2 ft. 
.thursday...north winds 10 to 15 kt becoming northwest. patchy
fog in the morning. chance of showers in the morning. waves 1 to
2 ft. 
.thursday night...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.friday...north winds 10 to 15 kt increasing to 15 to 25 kt in
the afternoon. waves 1 to 3 ft. 
.friday night...northeast winds 10 to 20 kt becoming east 5 to
10 kt overnight. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.saturday...east winds 5 to 10 kt backing to north 10 to 20 kt in
the afternoon. waves 1 ft or less. 
.saturday night...east winds 10 to 20 kt veering to south 10 to
15 kt. waves 1 ft or less. 
.sunday...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 1 to 3 ft.  

$$

fzus63 kmkx 081907
glflm 
expires:202607090315;;635468

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
207 pm cdt wed jul 8 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 around 30.1 inches will remain over the ohio valley
today and tonight. modest south winds will continue this afternoon,
as weak low pressure around 29.8 inches and an accompanying cold 
front approaches from upper michigan and northwest wisconsin. 
light to modest southerly winds tonight will become north behind 
the frontal passage thursday into thursday night. winds will 
become north to northeast on friday, as high pressure around 30.1 
inches builds into the the region. the high should continue to 
bring light to modest winds for the weekend.


lmz080-671-673-675-777-779-870-872-874-876-878-090315-
lake michigan from michigan city in to st. joseph mi 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-
207 pm cdt wed jul 8 2026

port washington wi to whitehall mi south...

.tonight...south winds 10 to 20 kt becoming southwest 10 to
15 kt. scattered showers and thunderstorms this evening, then
chance of showers and thunderstorms overnight. waves 1 to 2 ft.
.thursday...southwest winds 10 to 15 kt veering to north. chance
of showers and slight chance of thunderstorms. waves 1 to 2 ft. 
.thursday night...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.friday...north winds 10 to 15 kt increasing to 15 to 25 kt in
the afternoon. waves 2 to 4 ft. 
.friday night...north winds 15 to 25 kt becoming northeast 10 to
15 kt overnight. waves 2 to 4 ft. 
.saturday...east winds 10 to 15 kt becoming north 10 to 20 kt.
waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 20 kt becoming east 5 to
10 kt. waves 1 to 2 ft. 
.sunday...southeast winds 5 to 10 kt becoming east. waves 1 ft or
less. 
.monday...west winds 10 to 15 kt becoming southwest 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmqt 082001
glfls 
expires:202607090800;;637333

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed jul 8 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 hudson bay low moves into northern quebec this evening, sending a 
29.9 inch trough over the upper great lakes. weak high pressure to 
30.0 inches then builds over lake superior and northern ontario 
thursday and friday. saturday, the high builds to 30.1 inches as it 
shifts toward southern ontario. the high continues to shift south 
sunday, reaching the lower great lakes at 30.2 inches before 
weakening to 30.1 inches again monday south of the great lakes. 
another strong low of 29.3 inches looks to cross into hudson bay 
early next week.




lsz162-090800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt wed jul 8 2026 /301 pm cdt wed jul 8 2026/

...dense fog advisory in effect until 8 am edt /7 am cdt/
thursday...

.late this afternoon...north winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots diminishing to less than
10 knots after midnight. patchy dense fog. waves calm to 2 feet. 
.thursday...north winds less than 10 knots. patchy dense fog
through early afternoon. waves calm to 2 feet. 
.thursday night...north winds less than 10 knots. waves calm to
2 feet. 
.friday...east winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.friday night...northeast winds less than 10 knots backing north
after midnight. waves calm to 2 feet. 
.saturday...south winds less than 10 knots becoming north 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...north winds 5 to 15 knots backing southwest
after midnight. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.monday...southwest winds 15 to 25 knots increasing to 20 to
30 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 082001
glfls 
expires:202607090800;;637334

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed jul 8 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 hudson bay low moves into northern quebec this evening, sending a 
29.9 inch trough over the upper great lakes. weak high pressure to 
30.0 inches then builds over lake superior and northern ontario 
thursday and friday. saturday, the high builds to 30.1 inches as it 
shifts toward southern ontario. the high continues to shift south 
sunday, reaching the lower great lakes at 30.2 inches before 
weakening to 30.1 inches again monday south of the great lakes. 
another strong low of 29.3 inches looks to cross into hudson bay 
early next week.




lsz263-090800-
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 wed jul 8 2026

...dense fog advisory in effect until 8 am edt thursday...

.late this afternoon...southwest winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots diminishing to less than
10 knots after midnight. patchy dense fog. waves calm to 2 feet. 
.thursday...west winds less than 10 knots backing southwest in
the afternoon, then increasing to 5 to 15 knots late. patchy fog.
waves calm to 2 feet. 
.thursday night...southwest winds less than 10 knots backing
southeast after midnight, then backing east late. waves calm to
2 feet. 
.friday...east winds less than 10 knots. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.saturday...southwest winds less than 10 knots becoming south
5 to 15 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...southwest winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.monday...southwest winds 15 to 25 knots increasing to 20 to
30 knots. waves building to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 082001
glfls 
expires:202607090800;;637335

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed jul 8 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 hudson bay low moves into northern quebec this evening, sending a 
29.9 inch trough over the upper great lakes. weak high pressure to 
30.0 inches then builds over lake superior and northern ontario 
thursday and friday. saturday, the high builds to 30.1 inches as it 
shifts toward southern ontario. the high continues to shift south 
sunday, reaching the lower great lakes at 30.2 inches before 
weakening to 30.1 inches again monday south of the great lakes. 
another strong low of 29.3 inches looks to cross into hudson bay 
early next week.




lsz264-090800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt wed jul 8 2026

...dense fog advisory in effect until 8 am edt thursday...

.late this afternoon...southwest winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.tonight...southwest winds less than 10 knots veering west after
midnight. patchy dense fog. waves calm to 2 feet. 
.thursday...west winds less than 10 knots. patchy dense fog.
waves calm to 2 feet. 
.thursday night...west winds less than 10 knots veering north
late. waves calm to 2 feet. 
.friday...east winds less than 10 knots. waves calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...south winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...south 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. waves building to 1 to 3 feet. 
.monday...southwest winds 15 to 25 knots increasing to 20 to
30 knots. waves building to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 082001
glfls 
expires:202607090800;;637336

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed jul 8 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 hudson bay low moves into northern quebec this evening, sending a 
29.9 inch trough over the upper great lakes. weak high pressure to 
30.0 inches then builds over lake superior and northern ontario 
thursday and friday. saturday, the high builds to 30.1 inches as it 
shifts toward southern ontario. the high continues to shift south 
sunday, reaching the lower great lakes at 30.2 inches before 
weakening to 30.1 inches again monday south of the great lakes. 
another strong low of 29.3 inches looks to cross into hudson bay 
early next week.




lsz265-090800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt wed jul 8 2026

...dense fog advisory in effect until 8 am edt thursday...

.late this afternoon...east winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots backing east after
midnight. patchy dense fog. waves calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots veering north in the
afternoon, then veering east late. patchy dense fog through early
afternoon. waves calm to 2 feet. 
.thursday night...west winds 5 to 15 knots veering north late.
waves calm to 2 feet. 
.friday...east winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...south winds 5 to 15 knots becoming southeast 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...south winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots. waves calm to 2 feet. 
.monday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 082001
glfls 
expires:202607090800;;637337

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed jul 8 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 hudson bay low moves into northern quebec this evening, sending a 
29.9 inch trough over the upper great lakes. weak high pressure to 
30.0 inches then builds over lake superior and northern ontario 
thursday and friday. saturday, the high builds to 30.1 inches as it 
shifts toward southern ontario. the high continues to shift south 
sunday, reaching the lower great lakes at 30.2 inches before 
weakening to 30.1 inches again monday south of the great lakes. 
another strong low of 29.3 inches looks to cross into hudson bay 
early next week.




lsz266-090800-
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 wed jul 8 2026

...dense fog advisory in effect until 8 am edt thursday...

.late this afternoon...east winds 5 to 15 knots. patchy fog. a
slight chance of showers. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots backing north after
midnight, then backing northwest late. a slight chance of showers
and thunderstorms through midnight. patchy dense fog. waves calm
to 2 feet. 
.thursday...northwest winds 5 to 15 knots. patchy dense fog
through early afternoon. waves calm to 2 feet. 
.thursday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.friday...northeast winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.saturday night...south winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. waves building to 1 to
3 feet. 
.monday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 082001
glfls 
expires:202607090800;;637338

open lake forecast for lake superior
national weather service marquette mi
401 pm edt wed jul 8 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 hudson bay low moves into northern quebec this evening, sending a 
29.9 inch trough over the upper great lakes. weak high pressure to 
30.0 inches then builds over lake superior and northern ontario 
thursday and friday. saturday, the high builds to 30.1 inches as it 
shifts toward southern ontario. the high continues to shift south 
sunday, reaching the lower great lakes at 30.2 inches before 
weakening to 30.1 inches again monday south of the great lakes. 
another strong low of 29.3 inches looks to cross into hudson bay 
early next week.




lsz267-090800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt wed jul 8 2026

...dense fog advisory in effect until 8 am edt thursday...

.late this afternoon...northeast winds 5 to 15 knots. a slight
chance of showers. waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots veering north after
midnight. a slight chance of showers through midnight. patchy
dense fog. waves calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots increasing to 10 to
20 knots late. patchy fog. waves calm to 2 feet. 
.thursday night...west winds 5 to 15 knots veering northwest
after midnight. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots backing northwest by mid
afternoon. waves calm to 2 feet. 
.friday night...north winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.monday...west winds 5 to 15 knots becoming southwest 10 to
20 knots. waves building to 2 to 4 feet. 

$$