fzus61 kbuf 012003
glflo 
expires:202608020300;;459573

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt sat aug 1 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 ridge of high pressure averaging 30.0 inches will 
drift off the mid atlantic this evening. an elongated 29.7 inch low 
will move from the ohio valley sunday to the lower great lakes 
sunday night, with a remnant trough drifting towards new england 
monday. a 30.0 inch high will then build east across ontario and 
quebec monday through tuesday.


loz063>065-020300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 pm edt sat aug 1 2026

.tonight...east winds 5 to 10 knots becoming southeast. a chance
of showers after midnight. waves 1 foot or less. 
.sunday...southeast winds 5 to 10 knots becoming south. showers
in the morning, then showers with a chance of thunderstorms in
the afternoon. waves 2 feet or less. 
.sunday night...southeast winds 5 to 15 knots becoming east.
showers with a chance of thunderstorms in the evening, then
showers overnight. waves 2 feet or less. 
.monday...north winds 5 to 10 knots becoming west. a chance of
showers in the morning. waves 2 feet or less. 
.monday night...west winds 5 to 10 knots becoming north. waves
1 foot or less. 
.tuesday...northeast winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.wednesday...southeast winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms. waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots. a chance of showers.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 012003
glflo 
expires:202608020300;;459572

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt sat aug 1 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 ridge of high pressure averaging 30.0 inches will 
drift off the mid atlantic this evening. an elongated 29.7 inch low 
will move from the ohio valley sunday to the lower great lakes 
sunday night, with a remnant trough drifting towards new england 
monday. a 30.0 inch high will then build east across ontario and 
quebec monday through tuesday.


loz062-020300-
lake ontario open waters from the niagara river to hamlin beach-
403 pm edt sat aug 1 2026

.tonight...east winds 5 to 15 knots diminishing to less than
10 knots. a chance of showers. showers likely late. waves 2 feet
or less. 
.sunday...northeast winds 5 to 10 knots. showers early, then
showers with a chance of thunderstorms from late morning on.
waves 1 foot or less. 
.sunday night...northeast winds 5 to 10 knots becoming north.
showers likely with a chance of thunderstorms in the evening,
then showers likely overnight. waves around 1 foot. 
.monday...north winds 5 to 10 knots becoming southwest. a chance
of showers in the morning. waves 1 foot or less. 
.monday night...west winds 10 knots or less becoming north. waves
1 foot or less. 
.tuesday...northeast winds 10 knots or less becoming east. waves
1 foot or less. 
.wednesday...east winds less than 10 knots becoming southwest. a
chance of showers and thunderstorms. waves 1 foot or less. 
.thursday...southwest winds 10 knots or less. a chance of showers
during the day. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 011944
glfle 
expires:202608020215;;458981

open lake forecast for lake erie
national weather service cleveland oh
344 pm edt sat aug 1 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 29.80 inches will deepen to 29.70 inches over lake
erie with a low pressure system passing west to east south of the
region tonight into sunday. high pressure builds in from the west
to 30.00 inches by monday night with that ridge lingering through
mid week. 



lez162>164-020215-
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-
344 pm edt sat aug 1 2026

.tonight...east winds 10 to 15 knots becoming northeast. a chance
of showers with a slight chance of thunderstorms early, then
showers with a chance of thunderstorms from late evening on.
waves 1 to 3 feet. 
.sunday...east winds 10 to 15 knots becoming northeast. showers
likely with a chance of thunderstorms. waves 1 to 3 feet. 
.sunday night...northeast winds 10 to 15 knots becoming north. a
chance of showers and thunderstorms in the evening. waves 2 to
4 feet. 
.monday...north winds 10 to 15 knots becoming northeast. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.monday night...northeast winds 5 to 10 knots. waves 1 to 3 feet.
.tuesday...northeast winds 10 knots or less becoming east. waves
2 feet or less. 
.wednesday...southwest winds 10 knots or less becoming west.
waves 1 foot or less. 
.thursday...west winds 5 to 10 knots becoming southwest. a chance
of showers and thunderstorms. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 011944
glfle 
expires:202608020215;;458983

open lake forecast for lake erie
national weather service cleveland oh
344 pm edt sat aug 1 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 29.80 inches will deepen to 29.70 inches over lake
erie with a low pressure system passing west to east south of the
region tonight into sunday. high pressure builds in from the west
to 30.00 inches by monday night with that ridge lingering through
mid week. 



lez061-168-169-020215-
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-
344 pm edt sat aug 1 2026

.tonight...east winds 5 to 10 knots. a chance of showers with a
slight chance of thunderstorms this evening, then showers likely
with a chance of thunderstorms after midnight. waves 2 feet or
less. 
.sunday...east winds 5 to 10 knots becoming northeast. showers
with a chance of thunderstorms. waves 2 feet or less. 
.sunday night...northeast winds 5 to 15 knots. showers with a
chance of thunderstorms. waves 1 to 3 feet building to 2 to
4 feet. 
.monday...northeast winds 5 to 15 knots. waves 1 to 3 feet. 
.monday night...northeast winds 5 to 10 knots. waves 2 feet or
less. 
.tuesday...northeast winds 10 knots or less becoming southeast. a
chance of showers tuesday night. waves 2 feet or less. 
.wednesday...south winds 10 knots or less becoming southwest. a
chance of showers and thunderstorms during the day, then a chance
of showers wednesday night. waves 1 foot or less. 
.thursday...southwest winds 10 knots or less. a chance of showers
thursday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 011944
glfle 
expires:202608020215;;458982

open lake forecast for lake erie
national weather service cleveland oh
344 pm edt sat aug 1 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 29.80 inches will deepen to 29.70 inches over lake
erie with a low pressure system passing west to east south of the
region tonight into sunday. high pressure builds in from the west
to 30.00 inches by monday night with that ridge lingering through
mid week. 



lez165>167-020215-
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-
344 pm edt sat aug 1 2026

.tonight...east winds 5 to 10 knots. a slight chance of showers
and thunderstorms early, then a chance of showers and
thunderstorms late this evening. showers with a chance of
thunderstorms after midnight. waves 1 to 3 feet. 
.sunday...east winds 5 to 15 knots becoming northeast. showers
likely with a chance of thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon. waves 1 to
3 feet. 
.sunday night...northeast winds 10 to 15 knots becoming north.
showers likely with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 2 to 4 feet. 
.monday...north winds 10 to 15 knots becoming northeast. waves
2 to 4 feet. 
.monday night...northeast winds 5 to 10 knots. waves 1 to 3 feet.
.tuesday...northeast winds 5 to 10 knots becoming east. a chance
of showers tuesday night. waves 2 feet or less. 
.wednesday...south winds 10 knots or less becoming southwest. a
chance of showers wednesday night. waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots. a chance of showers
and thunderstorms thursday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 011957
glfsc 
expires:202608020400;;459258

lake st clair forecast
national weather service detroit/pontiac mi
357 pm edt sat aug 1 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...low pressure, 29.70 inches, will slowly track
northeastward across the ohio valley through the weekend. this 
brings rain and isolated thunderstorm chances to the great lakes 
through sunday.


lcz460-020400-
lake st clair-
357 pm edt sat aug 1 2026

.tonight...northeast winds 10 to 15 knots. a chance of light showers
early in the evening. light showers likely by midnight.. then light
showers and a chance of thunderstorms early in the morning. waves 2
feet or less.
.sunday...northeast winds 10 to 15 knots increasing to 15 to 20
knots late in the afternoon. light showers and a chance of
thunderstorms early in the morning...then showers likely in the late
morning and early afternoon. a chance of light showers late in the
afternoon. waves 1 to 3 feet.
.sunday night...north winds 15 to 20 knots. mostly cloudy with a
chance of light showers early in the evening...then partly cloudy in
the late evening and overnight. waves 1 to 3 feet.
.monday...north winds 10 to 15 knots. mostly cloudy early in the
morning then clearing. waves 2 feet or less.
.monday night...northeast winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. mostly clear. waves 2 feet or less.
.tuesday...northeast winds 5 to 10 knots veering to the east in the
afternoon and evening. sunny becoming mostly clear. waves 2 feet or
less.
.wednesday...south winds 5 to 10 knots. mostly clear. a chance of
showers. waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots. partly cloudy. a chance
of showers and thunderstorms. waves 2 feet or less.

$$

fzus63 kdtx 011956
glflh 
expires:202608020400;;459238

open lake forecast for lake huron
national weather service detroit/pontiac mi
356 pm edt sat aug 1 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...low pressure, 29.70 inches, will slowly track
northeastward across the ohio valley through the weekend. this 
brings rain and isolated thunderstorm chances to the great lakes 
through sunday. additionally, expect elevated northeast winds and
waves into saginaw bay and the thumb nearshores.


lhz362-363-020400-
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-
356 pm edt sat aug 1 2026

.tonight...north winds 5 to 10 knots becoming northeast 10 to
15 knots early in the morning. a chance of showers in the
evening...then showers likely after midnight. waves 1 to 3 feet. 
.sunday...northeast winds 10 to 15 knots. waves 3 to 5 feet. 
.sunday night...north winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. waves 3 to 5 feet
subsiding to 1 to 3 feet after midnight. 
.monday...north winds 5 to 10 knots. waves 1 to 3 feet. 
.monday night...light and variable winds. waves 2 feet or less. 
.tuesday...light and variable winds becoming southeast 5 to
10 knots. waves 2 feet or less. 
.wednesday...light and variable winds becoming east 5 to 10 knots
. a chance of showers early in the evening. waves 2 feet or less.
.thursday...northwest winds 5 to 10 knots veering to the east by
midnight. waves 2 feet or less. 


$$

fzus63 kdtx 011956
glflh 
expires:202608020400;;459239

open lake forecast for lake huron
national weather service detroit/pontiac mi
356 pm edt sat aug 1 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...low pressure, 29.70 inches, will slowly track
northeastward across the ohio valley through the weekend. this 
brings rain and isolated thunderstorm chances to the great lakes 
through sunday. additionally, expect elevated northeast winds and
waves into saginaw bay and the thumb nearshores.


lhz462>464-020400-
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-
356 pm edt sat aug 1 2026

.tonight...north winds 10 to 15 knots. a chance of showers. waves
1 to 3 feet. 
.sunday...northeast winds 10 to 15 knots becoming north 15 to
20 knots late in the afternoon. showers likely in the morning...
then a chance of showers in the afternoon. waves 2 to 4 feet
building to 3 to 5 feet in the late morning and afternoon. 
.sunday night...north winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 3 to 5 feet. 
.monday...north winds 10 to 15 knots. waves 2 to 4 feet. 
.monday night...north winds 10 to 15 knots becoming northeast
5 to 10 knots in the late evening and overnight. waves 2 to
4 feet subsiding to 1 to 3 feet in the late evening and
overnight. 
.tuesday...light and variable winds becoming north 5 to 10 knots
late in the afternoon...then veering to the southeast late in the
evening. waves 2 feet or less. 
.wednesday...south winds 5 to 10 knots early in the morning
becoming light and variable...then becoming southeast 5 to
10 knots early in the evening backing to the northeast. a chance
of showers . waves 2 feet or less. 
.thursday...west winds 5 to 10 knots backing to the east by
midnight. waves 2 feet or less. 


$$

fzus63 kdtx 011956
glflh 
expires:202608020400;;459237

open lake forecast for lake huron
national weather service detroit/pontiac mi
356 pm edt sat aug 1 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...low pressure, 29.70 inches, will slowly track
northeastward across the ohio valley through the weekend. this 
brings rain and isolated thunderstorm chances to the great lakes 
through sunday. additionally, expect elevated northeast winds and
waves into saginaw bay and the thumb nearshores.


lhz361-020400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
356 pm edt sat aug 1 2026

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


$$

fzus63 kmkx 011954
glflm 
expires:202608020315;;459218

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
254 pm cdt sat aug 1 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...

low pressure around 29.6 inches over central illinois will
slowly progress eastward into tonight, with a continued
northeast breeze across lake michigan. expecting 20-30 kt gusts
over the southern half of the lake. the low will gradually move
east through the ohio valley through sunday night, turning 
winds to northerly and bringing additional 20-30 kt wind gusts 
to the southern two thirds of the lake. isolated gales will be 
possible sunday afternoon. winds will gradually diminish through
sunday night. high pressure around 30.0 inches then builds into
the eastern great lakes monday, lingering through tuesday 
night. winds remain light and variable through this time.


lmz080-669-671-673-675-777-779-870-872-874-876-878-020315-
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-
254 pm cdt sat aug 1 2026

sheboygan wi to pentwater mi south...

.tonight...northeast winds to 30 kt diminishing to 15 to 25 kt.
slight chance of showers and thunderstorms this evening. waves
6 to 9 ft occasionally to 12 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.sunday...northeast winds 15 to 25 kt becoming north to 30 kt.
waves 6 to 9 ft occasionally to 12 ft. 
.sunday night...north winds to 30 kt becoming northeast 10 to
15 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to
5 ft. 
.monday...northeast winds 10 to 15 kt becoming north 15 to 25 kt
in the afternoon. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.monday night...north winds 10 to 20 kt becoming east 5 to 10 kt
overnight. waves 1 to 3 ft. 
.tuesday...southeast winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft. 
.tuesday night...south winds 10 to 15 kt becoming southwest 5 to
10 kt. waves 1 to 2 ft. 
.wednesday...west winds 10 to 15 kt. waves 1 to 2 ft. 
.thursday...north winds 10 to 15 kt veering to south. waves 1 ft
or less.  

$$

fzus63 kmkx 011954
glflm 
expires:202608020315;;459217

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
254 pm cdt sat aug 1 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...

low pressure around 29.6 inches over central illinois will
slowly progress eastward into tonight, with a continued
northeast breeze across lake michigan. expecting 20-30 kt gusts
over the southern half of the lake. the low will gradually move
east through the ohio valley through sunday night, turning 
winds to northerly and bringing additional 20-30 kt wind gusts 
to the southern two thirds of the lake. isolated gales will be 
possible sunday afternoon. winds will gradually diminish through
sunday night. high pressure around 30.0 inches then builds into
the eastern great lakes monday, lingering through tuesday 
night. winds remain light and variable through this time.


lmz261-362-364-366-563-565-567-868-020315-
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-
254 pm cdt sat aug 1 2026

sheboygan wi to pentwater mi north...

.tonight...northeast winds 10 to 20 kt. slight chance of showers.
waves 3 to 5 ft. 
.sunday...northeast winds 10 to 20 kt becoming north to 30 kt.
waves 4 to 7 ft occasionally to 9 ft. 
.sunday night...north winds to 30 kt becoming northeast 10 to
15 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 1 to
3 ft. 
.monday...northeast winds 10 to 15 kt becoming north 15 to 25 kt
in the afternoon. waves 1 to 2 ft. 
.monday night...east winds 10 to 20 kt veering to south 5 to
10 kt overnight. waves 1 to 2 ft. 
.tuesday...south winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft. 
.tuesday night...south winds 10 to 20 kt becoming southwest 5 to
10 kt. chance of showers. waves 1 to 2 ft. 
.wednesday...northwest winds 10 to 15 kt increasing to 10 to
20 kt. chance of showers. waves 1 to 2 ft. 
.thursday...northwest winds 10 to 15 kt backing to southwest
10 to 20 kt. waves 1 to 2 ft.  

$$

fzus63 kmqt 012001
glfls 
expires:202608020800;;459456

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat aug 1 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...

ridging of around 30.0 inches builds over lake superior from 
northern ontario tonight and persists through monday afternoon as a 
29.6 inch low over central indiana moves slowly through the ohio 
river valley. a 29.8 inch trough moves over the lake monday night 
into tuesday as a 29.5 inch low tracks over far northern hudson bay. 
ridging returns on wednesday as 30.0 to 30.1 inch high pressure 
builds into the great lakes from the northern plains.




lsz162-020800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt sat aug 1 2026 /301 pm cdt sat aug 1 2026/

.late this afternoon...northeast winds 5 to 15 knots. a slight
chance of showers. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots veering northeast late.
waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots increasing to 10 to
20 knots late. waves calm to 2 feet. 
.sunday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots veering southwest after
midnight. a chance of showers after midnight. waves calm to
2 feet. 
.tuesday...west winds 10 to 20 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.tuesday night...west winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots. waves calm to 2 feet.
.thursday...southwest winds 10 to 20 knots. waves calm to 2 feet.

$$

fzus63 kmqt 012001
glfls 
expires:202608020800;;459457

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat aug 1 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...

ridging of around 30.0 inches builds over lake superior from 
northern ontario tonight and persists through monday afternoon as a 
29.6 inch low over central indiana moves slowly through the ohio 
river valley. a 29.8 inch trough moves over the lake monday night 
into tuesday as a 29.5 inch low tracks over far northern hudson bay. 
ridging returns on wednesday as 30.0 to 30.1 inch high pressure 
builds into the great lakes from the northern plains.




lsz263-020800-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
401 pm edt sat aug 1 2026

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

$$

fzus63 kmqt 012001
glfls 
expires:202608020800;;459458

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat aug 1 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...

ridging of around 30.0 inches builds over lake superior from 
northern ontario tonight and persists through monday afternoon as a 
29.6 inch low over central indiana moves slowly through the ohio 
river valley. a 29.8 inch trough moves over the lake monday night 
into tuesday as a 29.5 inch low tracks over far northern hudson bay. 
ridging returns on wednesday as 30.0 to 30.1 inch high pressure 
builds into the great lakes from the northern plains.




lsz264-020800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt sat aug 1 2026

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

$$

fzus63 kmqt 012001
glfls 
expires:202608020800;;459459

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat aug 1 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...

ridging of around 30.0 inches builds over lake superior from 
northern ontario tonight and persists through monday afternoon as a 
29.6 inch low over central indiana moves slowly through the ohio 
river valley. a 29.8 inch trough moves over the lake monday night 
into tuesday as a 29.5 inch low tracks over far northern hudson bay. 
ridging returns on wednesday as 30.0 to 30.1 inch high pressure 
builds into the great lakes from the northern plains.




lsz265-020800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt sat aug 1 2026

...dense fog advisory in effect until 8 pm edt this evening...

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

$$

fzus63 kmqt 012001
glfls 
expires:202608020800;;459460

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat aug 1 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...

ridging of around 30.0 inches builds over lake superior from 
northern ontario tonight and persists through monday afternoon as a 
29.6 inch low over central indiana moves slowly through the ohio 
river valley. a 29.8 inch trough moves over the lake monday night 
into tuesday as a 29.5 inch low tracks over far northern hudson bay. 
ridging returns on wednesday as 30.0 to 30.1 inch high pressure 
builds into the great lakes from the northern plains.




lsz266-020800-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
401 pm edt sat aug 1 2026

...dense fog advisory in effect until 8 pm edt this evening...

.late this afternoon...north winds 10 to 20 knots. a slight
chance of showers. waves calm to 2 feet. 
.tonight...north winds 10 to 20 knots veering northeast after
midnight. waves building to 1 to 3 feet. 
.sunday...northeast winds 10 to 20 knots becoming north 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.sunday night...north winds 5 to 15 knots veering northeast late.
waves calm to 2 feet. 
.monday...southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots becoming south
15 to 25 knots after midnight. waves building to 1 to 3 feet. 
.tuesday...south winds 10 to 20 knots veering southwest by mid
afternoon. a chance of showers. waves subsiding to calm to
2 feet. 
.tuesday night...southwest winds 5 to 15 knots veering west after
midnight. a chance of showers. waves calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing southwest.
waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 012001
glfls 
expires:202608020800;;459461

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat aug 1 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...

ridging of around 30.0 inches builds over lake superior from 
northern ontario tonight and persists through monday afternoon as a 
29.6 inch low over central indiana moves slowly through the ohio 
river valley. a 29.8 inch trough moves over the lake monday night 
into tuesday as a 29.5 inch low tracks over far northern hudson bay. 
ridging returns on wednesday as 30.0 to 30.1 inch high pressure 
builds into the great lakes from the northern plains.




lsz267-020800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt sat aug 1 2026

...dense fog advisory in effect until 8 pm edt this evening...

.late this afternoon...north winds 10 to 20 knots. a chance of
showers. waves calm to 2 feet. 
.tonight...northeast winds 10 to 20 knots. a slight chance of
showers through midnight. waves building to 1 to 3 feet. 
.sunday...northeast winds 10 to 20 knots backing northwest late.
waves subsiding to calm to 2 feet. 
.sunday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then veering northeast late. waves calm
to 2 feet. 
.monday...east winds 5 to 15 knots backing north by mid
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves calm to 2 feet. 
.tuesday...south winds 10 to 20 knots. waves calm to 2 feet. 
.tuesday night...southwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a chance of showers. waves calm to
2 feet. 
.wednesday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots backing south. waves
building to 1 to 3 feet. 

$$