fzus61 kbuf 031402
glflo 
expires:202607032100;;339018

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri jul 3 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.1 inch high will remain in place today from the 
upper ohio valley to the mid atlantic. a weak cold front will settle 
south across the lake this evening, followed by another weak cold 
front saturday evening. a 30.2 inch high will then build from hudson 
bay saturday to quebec and northern new england sunday night. a weak 
29.9 inch low will then develop over the upper ohio valley late 
sunday and move to the mid atlantic by late monday. a broad 30.1 
inch high is then forecast to build into the great lakes tuesday 
through wednesday.


loz062-032100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt fri jul 3 2026

.rest of today...southwest winds 10 to 15 knots becoming west. a
chance of showers and thunderstorms late this morning, then
showers and thunderstorms likely this afternoon. some
thunderstorms may produce gusty winds. waves 1 to 2 feet. 
.tonight...west winds 5 to 10 knots. a chance of showers and
thunderstorms early. a chance of showers late. waves 2 feet or
less. 
.saturday...west winds 10 knots or less. a chance of showers.
waves 1 foot or less. 
.saturday night...northwest winds 10 knots or less becoming east.
a chance of showers. waves 1 foot or less. 
.sunday...east winds 10 to 15 knots. a chance of showers during
the day, then a chance of showers and thunderstorms sunday night.
waves 1 to 3 feet. 
.monday...east winds 10 to 15 knots. showers likely with a chance
of thunderstorms. waves 1 to 3 feet. 
.tuesday...east winds 10 knots or less becoming west. a chance of
showers during the day. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 031402
glflo 
expires:202607032100;;339019

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri jul 3 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.1 inch high will remain in place today from the 
upper ohio valley to the mid atlantic. a weak cold front will settle 
south across the lake this evening, followed by another weak cold 
front saturday evening. a 30.2 inch high will then build from hudson 
bay saturday to quebec and northern new england sunday night. a weak 
29.9 inch low will then develop over the upper ohio valley late 
sunday and move to the mid atlantic by late monday. a broad 30.1 
inch high is then forecast to build into the great lakes tuesday 
through wednesday.


loz063>065-032100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt fri jul 3 2026

.rest of today...west winds 5 to 15 knots. a chance of showers
and thunderstorms early this afternoon. showers and thunderstorms
likely late. some thunderstorms may produce gusty winds this
afternoon. waves 1 to 2 feet. 
.tonight...west winds 5 to 10 knots. a chance of showers and
thunderstorms early. a chance of showers after midnight. some
thunderstorms may produce gusty winds early. waves 1 to 2 feet. 
.saturday...west winds 5 to 10 knots. a chance of showers. waves
2 feet or less. 
.saturday night...west winds 10 knots or less becoming east.
waves 1 foot or less. 
.sunday...east winds 5 to 10 knots. a chance of showers sunday
night. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots becoming east. showers
likely with a chance of thunderstorms. waves 2 feet or less. 
.tuesday...east winds 10 knots or less becoming southwest. a
chance of showers. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 031343
glfle 
expires:202607032015;;338479

open lake forecast for lake erie
national weather service cleveland oh
943 am edt fri jul 3 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 cold front currently over the northern great lakes will sag
south onto lake erie saturday night. the front will stall sunday
and monday as low pressure 29.90 inches tracks over or just south
of lake erie. the cold front and low pressure will exit east and
southeast by tuesday as high pressure 30.10 inches builds in.


lez165>168-032015-
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-
943 am edt fri jul 3 2026

.rest of today...southwest winds 10 to 15 knots. a slight chance
of showers late this morning, then a slight chance of showers and
thunderstorms this afternoon. waves 2 feet or less. 
.tonight...west winds 5 to 10 knots. a chance of showers and
thunderstorms. waves 2 feet or less. 
.saturday...west winds 5 to 10 knots becoming northwest. a chance
of showers in the morning, then a chance of showers and
thunderstorms in the afternoon. waves 1 to 2 feet. 
.saturday night...northwest winds 10 knots or less becoming
southeast. a chance of showers and thunderstorms in the evening,
then showers likely with a chance of thunderstorms overnight.
waves 1 foot or less. 
.sunday...southeast winds 5 to 15 knots. showers likely with a
chance of thunderstorms. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots becoming northeast. a
chance of showers. waves 1 to 2 feet. 
.tuesday...north winds 5 to 10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 031343
glfle 
expires:202607032015;;338480

open lake forecast for lake erie
national weather service cleveland oh
943 am edt fri jul 3 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 cold front currently over the northern great lakes will sag
south onto lake erie saturday night. the front will stall sunday
and monday as low pressure 29.90 inches tracks over or just south
of lake erie. the cold front and low pressure will exit east and
southeast by tuesday as high pressure 30.10 inches builds in.


lez061-169-032015-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
943 am edt fri jul 3 2026

.rest of today...southwest winds 10 to 15 knots. a slight chance
of showers and thunderstorms. waves 1 to 2 feet. 
.tonight...west winds 5 to 10 knots becoming southwest. a chance
of showers and thunderstorms early, then a chance of showers with
a slight chance of thunderstorms late in the evening. a chance of
showers and thunderstorms after midnight. waves 1 to 2 feet. 
.saturday...southwest winds 10 knots or less becoming west. a
chance of showers and thunderstorms. waves around 1 foot. 
.saturday night...east winds less than 10 knots. a chance of
showers and thunderstorms in the evening, then showers likely
with a chance of thunderstorms overnight. waves 1 foot or less. 
.sunday...east winds 5 to 10 knots. showers likely with a chance
of thunderstorms. waves 2 feet or less. 
.monday...east winds 5 to 10 knots. a chance of showers and
thunderstorms during the day, then a chance of showers monday
night. waves 2 feet or less. 
.tuesday...northeast winds 10 knots or less. waves 1 foot or
less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 031343
glfle 
expires:202607032015;;338478

open lake forecast for lake erie
national weather service cleveland oh
943 am edt fri jul 3 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 cold front currently over the northern great lakes will sag
south onto lake erie saturday night. the front will stall sunday
and monday as low pressure 29.90 inches tracks over or just south
of lake erie. the cold front and low pressure will exit east and
southeast by tuesday as high pressure 30.10 inches builds in.


lez162>164-032015-
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-
943 am edt fri jul 3 2026

.rest of today...southwest winds around 10 knots. a slight chance
of showers and thunderstorms early this afternoon. a chance of
showers and thunderstorms late. waves 1 foot or less. 
.tonight...west winds 5 to 10 knots. a chance of showers and
thunderstorms through the early overnight, then a chance of
showers with a slight chance of thunderstorms late. waves 1 foot
or less. 
.saturday...west winds 5 to 10 knots becoming northeast. a chance
of showers in the morning, then showers likely with a chance of
thunderstorms in the afternoon. waves 1 foot or less. 
.saturday night...north winds 10 knots or less becoming south.
showers with a chance of thunderstorms. waves 1 foot or less. 
.sunday...south winds 5 to 10 knots becoming east. showers likely
with a chance of thunderstorms. waves 2 feet or less. 
.monday...north winds 5 to 10 knots. a chance of showers and
thunderstorms during the day, then a chance of showers monday
night. waves 2 feet or less. 
.tuesday...north winds 5 to 10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 031403
glfsc 
expires:202607032215;;339113

lake st clair forecast
national weather service detroit/pontiac mi
1003 am edt fri jul 3 2026

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

.synopsis...high pressure, 30.10 inches, persists over the central
appalachians today. this will maintain a hot and humid airmass in
place over the central great lakes with potential for scattered
to numerous showers and thunderstorms. a weak cold front passes
south across the region on saturday, then weak low pressure
tracks through sunday into monday.


lcz460-032215-
lake st clair-
1003 am edt fri jul 3 2026

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

$$

fzus63 kdtx 031402
glflh 
expires:202607032215;;339054

open lake forecast for lake huron
national weather service detroit/pontiac mi
1002 am edt fri jul 3 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.10 inches, persists over the central
appalachians today. this will maintain a hot and humid airmass in
place over the central great lakes with potential for scattered
to numerous showers and thunderstorms. a weak cold front passes
south across the region on saturday, then weak low pressure
tracks through sunday into monday.


lhz361-032215-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
1002 am edt fri jul 3 2026

.rest of today...west winds 5 to 10 knots. waves 2 feet or less. 
.tonight...west winds 5 to 10 knots. waves 2 feet or less. 
.saturday...north winds 5 to 10 knots until late afternoon
becoming light and variable. waves 2 feet or less. 
.saturday night...light and variable winds becoming east 5 to
10 knots after midnight. a chance of showers after midnight.
waves 2 feet or less. 
.sunday...east winds 10 to 15 knots decreasing to 5 to 10 knots
late in the afternoon. a chance of showers. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the afternoon. 
.monday...east winds 5 to 10 knots early in the morning becoming
light and variable. waves 2 feet or less. 
.tuesday...light and variable winds becoming southwest 5 to
10 knots . waves 2 feet or less. 


$$

fzus63 kdtx 031402
glflh 
expires:202607032215;;339055

open lake forecast for lake huron
national weather service detroit/pontiac mi
1002 am edt fri jul 3 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.10 inches, persists over the central
appalachians today. this will maintain a hot and humid airmass in
place over the central great lakes with potential for scattered
to numerous showers and thunderstorms. a weak cold front passes
south across the region on saturday, then weak low pressure
tracks through sunday into monday.


lhz362-363-032215-
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-
1002 am edt fri jul 3 2026

.rest of today...light and variable winds. a chance of showers in
the afternoon. waves 2 feet or less. 
.tonight...light and variable winds becoming west 5 to 10 knots
after midnight. a chance of showers. waves 2 feet or less. 
.saturday...north winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...north winds 5 to 10 knots veering to the
northeast after midnight. a chance of showers after midnight.
waves 2 feet or less. 
.sunday...northeast winds 10 to 15 knots becoming east 5 to
10 knots late in the evening. a chance of showers. waves 2 to
4 feet. 
.monday...east winds 5 to 10 knots backing to the northeast early
in the evening...then becoming light and variable by midnight.
waves 1 to 3 feet. 
.tuesday...light and variable winds. waves 2 feet or less. 


$$

fzus63 kdtx 031402
glflh 
expires:202607032215;;339056

open lake forecast for lake huron
national weather service detroit/pontiac mi
1002 am edt fri jul 3 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.10 inches, persists over the central
appalachians today. this will maintain a hot and humid airmass in
place over the central great lakes with potential for scattered
to numerous showers and thunderstorms. a weak cold front passes
south across the region on saturday, then weak low pressure
tracks through sunday into monday.


lhz462>464-032215-
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-
1002 am edt fri jul 3 2026

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


$$

fzus63 kmkx 031405
glflm 
expires:202607032115;;339258

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
905 am cdt fri jul 3 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...

large high pressure around 30.1 inches will sit over the  
appalachian mountains and a trough of low pressure will remain 
over the great plains through tonight. a weak low pressure area 
will then organize and slowly move across wisconsin and lake 
michigan from saturday afternoon into sunday. scattered showers 
and thunderstorms are expected at times through the weekend. 
patchy marine fog will be possible as warm and humid air flows 
over the relatively cooler lake.


lmz261-362-364-366-563-565-567-868-032115-
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-
905 am cdt fri jul 3 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 10 to 15 kt. patchy fog this
afternoon. slight chance of showers and thunderstorms this
afternoon. waves 1 to 2 ft. 
.tonight...southwest winds 5 to 10 kt veering to north. patchy
fog. chance of showers and slight chance of thunderstorms in the
evening, then slight chance of showers overnight. waves 1 to
2 ft. 
.saturday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. patchy fog in the morning. waves 1 to 3 ft. 
.saturday night...northeast winds 10 to 20 kt becoming east.
chance of showers. waves 1 to 3 ft. 
.sunday...east winds 10 to 20 kt becoming northeast. chance of
showers. waves 2 to 4 ft. 
.sunday night...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 3 ft. 
.monday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.tuesday...northwest winds 5 to 10 kt becoming southwest 10 to
20 kt. waves 1 ft or less.  

$$

fzus63 kmkx 031405
glflm 
expires:202607032115;;339259

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
905 am cdt fri jul 3 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...

large high pressure around 30.1 inches will sit over the  
appalachian mountains and a trough of low pressure will remain 
over the great plains through tonight. a weak low pressure area 
will then organize and slowly move across wisconsin and lake 
michigan from saturday afternoon into sunday. scattered showers 
and thunderstorms are expected at times through the weekend. 
patchy marine fog will be possible as warm and humid air flows 
over the relatively cooler lake.


lmz080-669-671-673-675-777-779-870-872-874-876-878-032115-
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-
905 am cdt fri jul 3 2026

sheboygan wi to pentwater mi south...

.rest of today...southwest winds 10 to 15 kt becoming south.
patchy fog this afternoon. chance of showers and thunderstorms
this afternoon. waves 1 to 3 ft. 
.tonight...south winds 5 to 10 kt becoming west. patchy fog.
chance of showers and thunderstorms. waves 1 to 2 ft. 
.saturday...northwest winds 5 to 10 kt veering to northeast late
in the morning, then becoming north 10 to 20 kt in the afternoon.
patchy fog in the morning. chance of showers and thunderstorms.
waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 15 kt veering to south.
chance of showers and thunderstorms in the evening, then showers
likely with a chance of thunderstorms overnight. waves 1 to 3 ft.
.sunday...west winds 10 to 20 kt becoming northwest. showers
likely in the morning, then chance of showers in the afternoon.
waves 1 to 3 ft. 
.sunday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. chance of showers. waves 1 to 3 ft. 
.monday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.tuesday...north winds 5 to 10 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmqt 031401
glfls 
expires:202607032000;;338973

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 3 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... 

through this afternoon high pressure of 30.0 inches will continue to 
build into manitoba and ontario from the north. the high will extend 
over lake superior by saturday morning and will linger through the 
weekend as a weak low of 29.9 inches passes south of lake superior. 
late sunday night into monday, the high is pushed southeast into 
quebec at 30.1 inches by a 29.6 inch low over northern manitoba. the 
low deepens to 29.5 inches by tuesday morning as 30.1 inch high 
pressure builds over the northern plains. the high then moves over 
the great lakes for wednesday.




lsz267-032000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt fri jul 3 2026

.rest of today...northwest winds 5 to 15 knots. patchy fog by
late morning. waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots veering north late.
waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then backing north late. waves calm to
2 feet. 
.saturday night...north winds 5 to 15 knots veering east after
midnight. a chance of showers after midnight. waves calm to
2 feet. 
.sunday...east winds 10 to 20 knots backing northeast by mid
afternoon. a slight chance of showers through early afternoon.
waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.monday...north winds 5 to 15 knots backing southwest. waves calm
to 2 feet. 
.tuesday...west winds 5 to 15 knots diminishing to less than
10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 031401
glfls 
expires:202607032000;;338968

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 3 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... 

through this afternoon high pressure of 30.0 inches will continue to 
build into manitoba and ontario from the north. the high will extend 
over lake superior by saturday morning and will linger through the 
weekend as a weak low of 29.9 inches passes south of lake superior. 
late sunday night into monday, the high is pushed southeast into 
quebec at 30.1 inches by a 29.6 inch low over northern manitoba. the 
low deepens to 29.5 inches by tuesday morning as 30.1 inch high 
pressure builds over the northern plains. the high then moves over 
the great lakes for wednesday.




lsz162-032000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt fri jul 3 2026 /900 am cdt fri jul 3 2026/

.rest of today...northeast winds 5 to 15 knots. a slight chance
of showers and thunderstorms by late morning. waves calm to
2 feet. 
.tonight...northeast winds 5 to 15 knots. a slight chance of
showers and thunderstorms. waves calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a slight chance of showers. waves
building to 2 to 4 feet. 
.saturday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a slight chance of showers. waves
subsiding to calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots becoming north less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...north winds less than 10 knots increasing to 5 to
15 knots. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots veering west. waves calm
to 2 feet. 

$$

fzus63 kmqt 031401
glfls 
expires:202607032000;;338969

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 3 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... 

through this afternoon high pressure of 30.0 inches will continue to 
build into manitoba and ontario from the north. the high will extend 
over lake superior by saturday morning and will linger through the 
weekend as a weak low of 29.9 inches passes south of lake superior. 
late sunday night into monday, the high is pushed southeast into 
quebec at 30.1 inches by a 29.6 inch low over northern manitoba. the 
low deepens to 29.5 inches by tuesday morning as 30.1 inch high 
pressure builds over the northern plains. the high then moves over 
the great lakes for wednesday.




lsz263-032000-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1000 am edt fri jul 3 2026

.rest of today...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...northeast winds 5 to 15 knots. a slight chance of
showers after midnight. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a slight chance of showers. waves
building to 2 to 4 feet. 
.saturday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a chance of showers. waves
subsiding to calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...north winds less than 10 knots becoming southwest 5 to
15 knots. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 031401
glfls 
expires:202607032000;;338970

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 3 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... 

through this afternoon high pressure of 30.0 inches will continue to 
build into manitoba and ontario from the north. the high will extend 
over lake superior by saturday morning and will linger through the 
weekend as a weak low of 29.9 inches passes south of lake superior. 
late sunday night into monday, the high is pushed southeast into 
quebec at 30.1 inches by a 29.6 inch low over northern manitoba. the 
low deepens to 29.5 inches by tuesday morning as 30.1 inch high 
pressure builds over the northern plains. the high then moves over 
the great lakes for wednesday.




lsz264-032000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt fri jul 3 2026

.rest of today...northeast winds less than 10 knots becoming
north 5 to 15 knots in the afternoon, then backing northwest
late. patchy fog. waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots becoming north less than
10 knots after midnight, then becoming northeast 5 to 15 knots
late. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...south winds less than 10 knots becoming southwest 5 to
15 knots. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots veering west. waves calm
to 2 feet. 

$$

fzus63 kmqt 031401
glfls 
expires:202607032000;;338971

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 3 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... 

through this afternoon high pressure of 30.0 inches will continue to 
build into manitoba and ontario from the north. the high will extend 
over lake superior by saturday morning and will linger through the 
weekend as a weak low of 29.9 inches passes south of lake superior. 
late sunday night into monday, the high is pushed southeast into 
quebec at 30.1 inches by a 29.6 inch low over northern manitoba. the 
low deepens to 29.5 inches by tuesday morning as 30.1 inch high 
pressure builds over the northern plains. the high then moves over 
the great lakes for wednesday.




lsz265-032000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt fri jul 3 2026

.rest of today...north winds 5 to 15 knots veering northeast in
the afternoon. patchy fog by late morning. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots backing north after midnight.
waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon, then diminishing to 5 to 15 knots late. a
slight chance of showers by mid afternoon. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots backing northeast
after midnight. a slight chance of thunderstorms through
midnight. a chance of showers. waves calm to 2 feet. 
.sunday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. a slight chance of showers through
early afternoon. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots backing north after
midnight. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots veering south. waves calm to
2 feet. 
.tuesday...west winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 031401
glfls 
expires:202607032000;;338972

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jul 3 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... 

through this afternoon high pressure of 30.0 inches will continue to 
build into manitoba and ontario from the north. the high will extend 
over lake superior by saturday morning and will linger through the 
weekend as a weak low of 29.9 inches passes south of lake superior. 
late sunday night into monday, the high is pushed southeast into 
quebec at 30.1 inches by a 29.6 inch low over northern manitoba. the 
low deepens to 29.5 inches by tuesday morning as 30.1 inch high 
pressure builds over the northern plains. the high then moves over 
the great lakes for wednesday.




lsz266-032000-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1000 am edt fri jul 3 2026

.rest of today...north winds 5 to 15 knots. patchy fog by late
morning. waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots backing north late.
waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots becoming east
10 to 20 knots after midnight. a chance of showers. waves
building to 1 to 3 feet. 
.sunday...east winds 10 to 20 knots becoming northeast 5 to
15 knots by mid afternoon. a slight chance of showers through
early afternoon. waves subsiding to calm to 2 feet. 
.sunday night...north winds 5 to 15 knots veering northeast after
midnight. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots veering south. waves calm to
2 feet. 
.tuesday...west winds 5 to 15 knots. waves calm to 2 feet. 

$$