fzus61 kbuf 060802
glflo 
expires:202607061500;;500278

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt mon jul 6 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 30.2 inch high will build from quebec today southeast 
across new england tonight, then east of the canadian maritimes by 
tuesday. meanwhile, a weak 29.9 inch low over the ohio valley today 
will move to the mid atlantic tonight, then move off the southern 
new england coast tuesday. a broad 30.1 inch high is then forecast 
to build across the great lakes tuesday through wednesday, then 
drift off the east coast thursday. a weak cold front will cross the 
lake friday before another 30.1 inch high builds across the upper 
great lakes friday and the lower great lakes by saturday.


loz062-061500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt mon jul 6 2026

.today...northeast winds 10 to 15 knots becoming east 15 to
20 knots. a chance of showers late. waves 2 to 4 feet. 
.tonight...east winds 10 to 15 knots. waves 2 to 3 feet. 
.tuesday...east winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday night...east winds 10 knots or less. waves 2 feet or
less. 
.wednesday...north winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.thursday...southwest winds 5 to 15 knots becoming west. a chance
of showers during the day, then showers likely thursday night.
waves 2 feet or less. 
.friday...northwest winds 10 knots or less becoming north.
showers likely during the day, then a chance of showers friday
night. waves 1 foot or less. 

$$

fzus61 kbuf 060802
glflo 
expires:202607061500;;500279

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt mon jul 6 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 30.2 inch high will build from quebec today southeast 
across new england tonight, then east of the canadian maritimes by 
tuesday. meanwhile, a weak 29.9 inch low over the ohio valley today 
will move to the mid atlantic tonight, then move off the southern 
new england coast tuesday. a broad 30.1 inch high is then forecast 
to build across the great lakes tuesday through wednesday, then 
drift off the east coast thursday. a weak cold front will cross the 
lake friday before another 30.1 inch high builds across the upper 
great lakes friday and the lower great lakes by saturday.


loz063>065-061500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt mon jul 6 2026

.today...east winds 10 to 15 knots. a chance of showers this
afternoon. waves 1 to 3 feet. 
.tonight...east winds 5 to 15 knots. a chance of showers early.
waves 1 to 3 feet. 
.tuesday...east winds 5 to 10 knots becoming northeast. waves
2 feet or less. 
.tuesday night...east winds 10 knots or less becoming south.
waves 1 foot or less. 
.wednesday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots becoming west. showers
likely with a chance of thunderstorms thursday night. waves
2 feet or less. 
.friday...west winds 5 to 10 knots becoming north. showers likely
with a chance of thunderstorms during the day, then a chance of
showers friday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 060746
glfle 
expires:202607061430;;499881

open lake forecast for lake erie
national weather service cleveland oh
346 am edt mon jul 6 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 29.90 inches near the southwestern shore of lake 
erie will continue to move slowly east today. a cold front will 
move through and the low will open up into a trough, lasting 
through wednesday. weak high pressure 30.00 inches will enter for 
thursday. a cold front will cross the lake on friday.


lez162-163-061430-
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-
346 am edt mon jul 6 2026

.today...northeast winds 15 to 20 knots. showers with a chance of
thunderstorms this morning, then showers likely with a slight
chance of thunderstorms early this afternoon. a chance of showers
with a slight chance of thunderstorms late. waves 1 to 3 feet
building to 2 to 4 feet. 
.tonight...northeast winds 15 to 20 knots becoming north 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...north winds 5 to 15 knots becoming northeast. waves
2 feet or less. 
.tuesday night...east winds 10 knots or less becoming northeast.
waves 2 feet or less. 
.wednesday...north winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.thursday...southwest winds around 10 knots. a chance of showers
and thunderstorms during the day, then showers likely with a
chance of thunderstorms thursday night. waves 1 to 2 feet. 
.friday...west winds 5 to 10 knots becoming northeast. showers
likely with a chance of thunderstorms during the day, then a
chance of showers friday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 060746
glfle 
expires:202607061430;;499882

open lake forecast for lake erie
national weather service cleveland oh
346 am edt mon jul 6 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 29.90 inches near the southwestern shore of lake 
erie will continue to move slowly east today. a cold front will 
move through and the low will open up into a trough, lasting 
through wednesday. weak high pressure 30.00 inches will enter for 
thursday. a cold front will cross the lake on friday.


lez164>167-061430-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
346 am edt mon jul 6 2026

.today...east winds 15 to 20 knots becoming northeast. showers
likely with a slight chance of thunderstorms this morning, then a
chance of showers with a slight chance of thunderstorms this
afternoon. waves 2 to 4 feet. 
.tonight...northeast winds 15 to 20 knots. a slight chance of
showers and thunderstorms early. waves 2 to 4 feet. 
.tuesday...northeast winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday night...northeast winds 5 to 10 knots. waves 1 to
2 feet. 
.wednesday...northeast winds 10 knots or less becoming southwest.
waves 2 feet or less. 
.thursday...southwest winds 10 to 15 knots. showers likely with a
chance of thunderstorms thursday night. waves 1 to 3 feet. 
.friday...west winds 5 to 10 knots becoming northeast. a chance
of showers and thunderstorms during the day, then a chance of
showers friday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 060746
glfle 
expires:202607061430;;499883

open lake forecast for lake erie
national weather service cleveland oh
346 am edt mon jul 6 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 29.90 inches near the southwestern shore of lake 
erie will continue to move slowly east today. a cold front will 
move through and the low will open up into a trough, lasting 
through wednesday. weak high pressure 30.00 inches will enter for 
thursday. a cold front will cross the lake on friday.


lez061-168-169-061430-
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-
346 am edt mon jul 6 2026

.today...northeast winds 15 to 20 knots. showers likely with a
slight chance of thunderstorms early, then a chance of showers
with a slight chance of thunderstorms. showers likely with a
slight chance of thunderstorms late. waves 1 to 3 feet. 
.tonight...northeast winds 15 to 20 knots becoming east 10 to
15 knots. a chance of showers with a slight chance of
thunderstorms early, then a slight chance of showers from late
evening on. waves 1 to 3 feet. 
.tuesday...northeast winds 5 to 15 knots. waves 1 to 2 feet. 
.tuesday night...northeast winds 10 knots or less. waves 2 feet
or less. 
.wednesday...east winds 10 knots or less becoming south. waves
1 foot or less. 
.thursday...southwest winds 5 to 10 knots. showers likely with a
chance of thunderstorms thursday night. waves 2 feet or less. 
.friday...southwest winds 5 to 10 knots becoming northeast. a
chance of showers and thunderstorms during the day, then a chance
of showers friday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 060730
glflh 
expires:202607061530;;499442

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 am edt mon jul 6 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...northeast flow holds through the day today as high
pressure, 30.10 inches, works in across the great lakes. high
pressure will hold over the region through tomorrow. wind
direction will then veer to the southwest as high pressure
departs through the midweek period.


lhz361-061530-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
330 am edt mon jul 6 2026

.today...northeast winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 
.tuesday night...light and variable winds. waves 2 feet or less. 
.wednesday...light and variable winds becoming southwest 5 to
10 knots late in the morning...then becoming light and variable
late in the afternoon. a chance of showers. waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots veering to the
northwest by midnight. showers likely early in the morning. a
chance of showers early in the evening. waves 2 feet or less. 
.friday...northeast winds 5 to 10 knots until afternoon becoming
light and variable...then becoming northwest 5 to 10 knots by
midnight. waves 2 feet or less. 


$$

fzus63 kdtx 060730
glfsc 
expires:202607061530;;499456

lake st clair forecast
national weather service detroit/pontiac mi
330 am edt mon jul 6 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...northeast flow holds through the day today as high
pressure, 30.10 inches, works in across the great lakes. high
pressure will hold over the region through tomorrow. wind
direction will then veer to the southwest as high pressure
departs through the midweek period.


lcz460-061530-
lake st clair-
330 am edt mon jul 6 2026

.today...northeast winds 15 to 20 knots diminishing to 10 to 15
knots in the late morning and afternoon. partly sunny. a chance of
light showers early in the morning. areas of fog early in the
morning. waves 2 feet or less.
.tonight...northeast winds 10 to 15 knots. mostly clear. waves 2
feet or less.
.tuesday...northeast winds 5 to 10 knots. mostly sunny. waves 2 feet
or less.
.tuesday night...northeast winds 5 to 10 knots becoming light and
variable. clear. waves 2 feet or less.
.wednesday...light and variable winds becoming south 5 to 10 knots
in the afternoon and evening. mostly sunny becoming sunny in the
afternoon becoming mostly clear. waves 2 feet or less.
.thursday...southwest winds 10 to 15 knots. partly cloudy. a chance
of showers and thunderstorms. waves 2 feet or less.
.friday...north winds 10 to 15 knots. partly cloudy. a chance of
showers and thunderstorms. waves 2 feet or less.

$$

fzus63 kdtx 060730
glflh 
expires:202607061530;;499444

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 am edt mon jul 6 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...northeast flow holds through the day today as high
pressure, 30.10 inches, works in across the great lakes. high
pressure will hold over the region through tomorrow. wind
direction will then veer to the southwest as high pressure
departs through the midweek period.


lhz462>464-061530-
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-
330 am edt mon jul 6 2026

.today...northeast winds 5 to 10 knots becoming north 10 to
15 knots late in the afternoon. areas of fog in the morning.
waves 1 to 3 feet. 
.tonight...north winds 10 to 15 knots becoming northeast 5 to
10 knots in the late evening and overnight. waves 1 to 3 feet. 
.tuesday...light and variable winds becoming north 5 to 10 knots
early in the afternoon. waves 2 feet or less. 
.tuesday night...north winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.wednesday...light and variable winds becoming south 10 to
15 knots. waves 2 feet or less. 
.thursday...southwest winds 5 to 10 knots. a chance of
thunderstorms. a chance of showers . waves 2 feet or less. 
.friday...north winds 5 to 10 knots increasing to 10 to 15 knots
early in the evening...then decreasing to 5 to 10 knots by
midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 060730
glflh 
expires:202607061530;;499443

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 am edt mon jul 6 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...northeast flow holds through the day today as high
pressure, 30.10 inches, works in across the great lakes. high
pressure will hold over the region through tomorrow. wind
direction will then veer to the southwest as high pressure
departs through the midweek period.


lhz362-363-061530-
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-
330 am edt mon jul 6 2026

.today...northeast winds 5 to 10 knots. waves 1 to 3 feet. 
.tonight...north winds 5 to 10 knots in the evening becoming
light and variable. waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 
.tuesday night...light and variable winds. waves 2 feet or less. 
.wednesday...light and variable winds becoming south 5 to
10 knots late in the morning...then backing to the southeast late
in the afternoon veering to the south late in the evening. a
chance of showers late in the evening. waves 2 feet or less. 
.thursday...southwest winds 5 to 10 knots. a chance of showers
early in the morning...then showers likely until early evening.
waves 2 feet or less. 
.friday...north winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kmkx 060814
glflm 
expires:202607061515;;501379

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
314 am cdt mon jul 6 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 30.2 inches will remain in place over the 
upper great lakes through tuesday. expect steady north to 
northeast winds today into this evening, with light and variable 
winds later tonight into tuesday. southwest winds will increase 
tuesday night, with gusty south to southwest winds wednesday into 
wednesday night, as weak low pressure around 29.8 inches and an 
accompanying cold front approaches from the northern plains. winds
will become northerly behind the frontal passage thursday 
afternoon into friday, with high pressure around 30.1 inches 
building into the the upper great lakes region through the end of 
the week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-061515-
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-
314 am cdt mon jul 6 2026

sheboygan wi to pentwater mi south...

.today...northeast winds 10 to 15 kt becoming north late this
morning, then increasing to 15 to 25 kt early this afternoon
becoming north 15 to 25 kt late. waves 2 to 4 ft. 
.tonight...north winds 10 to 20 kt becoming northeast 5 to 10 kt.
waves 2 to 4 ft subsiding to 1 to 3 ft. 
.tuesday...north winds 5 to 10 kt increasing to 10 to 15 kt early
in the afternoon, then becoming northwest 10 to 20 kt late. waves
1 to 3 ft subsiding to 1 to 2 ft. 
.tuesday night...west winds 10 to 15 kt becoming southwest. waves
1 ft or less. 
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 ft or less building to 2 to 4 ft. 
.wednesday night...south winds 10 to 20 kt becoming southwest.
waves 2 to 4 ft. 
.thursday...west winds 10 to 20 kt becoming northwest. chance of
showers and thunderstorms. waves 2 to 4 ft. 
.friday...north winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers. waves 2 to 4 ft.  

$$

fzus63 kmkx 060814
glflm 
expires:202607061515;;501378

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
314 am cdt mon jul 6 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 30.2 inches will remain in place over the 
upper great lakes through tuesday. expect steady north to 
northeast winds today into this evening, with light and variable 
winds later tonight into tuesday. southwest winds will increase 
tuesday night, with gusty south to southwest winds wednesday into 
wednesday night, as weak low pressure around 29.8 inches and an 
accompanying cold front approaches from the northern plains. winds
will become northerly behind the frontal passage thursday 
afternoon into friday, with high pressure around 30.1 inches 
building into the the upper great lakes region through the end of 
the week.


lmz261-362-364-366-563-565-567-868-061515-
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-
314 am cdt mon jul 6 2026

sheboygan wi to pentwater mi north...

.today...northeast winds 10 to 15 kt becoming north 15 to 25 kt.
waves 2 to 4 ft. 
.tonight...northeast winds 10 to 20 kt diminishing to 10 to 15 kt
late in the evening, then diminishing to 5 to 10 kt after
midnight becoming north late. waves 2 to 4 ft subsiding to 1 to
2 ft. 
.tuesday...west winds 5 to 10 kt becoming southwest 10 to 20 kt.
waves 1 to 2 ft. 
.tuesday night...southwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.wednesday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. chance of showers. waves 1 ft or less building to 1 to
3 ft. 
.wednesday night...southwest winds 10 to 20 kt becoming west.
showers likely with a chance of thunderstorms. waves 2 to 4 ft.
.thursday...north winds 10 to 20 kt. showers likely. waves 2 to
4 ft. 
.friday...northeast winds 10 to 20 kt becoming north 15 to 25 kt.
waves 1 to 3 ft.  

$$

fzus63 kmqt 060801
glfls 
expires:202607062000;;500137

open lake forecast for lake superior
national weather service marquette mi
401 am edt mon jul 6 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... 

30.1 inch ridging remains over the lake today extending from a 30.2 
inch high pressure moving east through quebec. meanwhile, low 
pressure will move from northern saskatchewan to hudson bay, 
deepening to 29.5 inches as it reaches hudson bay on tuesday 
morning. as the low departs the hudson bay, moving east, it will 
extend a 29.8 inch trough over lake superior on wednesday. 
thereafter high pressure at 29.9 inches builds over the upper great 
lakes for thursday and friday.




lsz162-062000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt mon jul 6 2026 /301 am cdt mon jul 6 2026/

.early this morning...northeast winds less than 10 knots. waves
calm to 2 feet. 
.today...northeast winds less than 10 knots increasing to 5 to
15 knots in the afternoon, then veering east late. waves calm to
2 feet. 
.tonight...northeast winds less than 10 knots backing north after
midnight, then becoming southwest 5 to 15 knots late. a slight
chance of showers and thunderstorms after midnight. waves calm to
2 feet. 
.tuesday...west winds 5 to 15 knots backing southwest in the
afternoon. a slight chance of showers. a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.tuesday night...west winds 5 to 15 knots. a chance of showers
through midnight. a chance of thunderstorms. showers likely after
midnight. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. showers. waves calm
to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots backing north
after midnight. a chance of showers through midnight. waves calm
to 2 feet. 
.thursday...northeast winds 5 to 15 knots becoming north less
than 10 knots. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots backing northeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 060801
glfls 
expires:202607062000;;500138

open lake forecast for lake superior
national weather service marquette mi
401 am edt mon jul 6 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... 

30.1 inch ridging remains over the lake today extending from a 30.2 
inch high pressure moving east through quebec. meanwhile, low 
pressure will move from northern saskatchewan to hudson bay, 
deepening to 29.5 inches as it reaches hudson bay on tuesday 
morning. as the low departs the hudson bay, moving east, it will 
extend a 29.8 inch trough over lake superior on wednesday. 
thereafter high pressure at 29.9 inches builds over the upper great 
lakes for thursday and friday.




lsz263-062000-
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 am edt mon jul 6 2026

.early this morning...east winds less than 10 knots. waves calm
to 2 feet. 
.today...east winds less than 10 knots. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering southwest after
midnight. a slight chance of showers and thunderstorms after
midnight. waves calm to 2 feet. 
.tuesday...west winds 5 to 15 knots backing southwest in the
afternoon. a slight chance of showers. a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots diminishing to
less than 10 knots after midnight. a chance of showers and
thunderstorms. waves calm to 2 feet. 
.wednesday...northeast winds less than 10 knots increasing to
5 to 15 knots by mid afternoon. showers. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots backing north
after midnight. a chance of showers. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots becoming northeast less
than 10 knots. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots veering southwest. waves calm
to 2 feet. 

$$

fzus63 kmqt 060801
glfls 
expires:202607062000;;500139

open lake forecast for lake superior
national weather service marquette mi
401 am edt mon jul 6 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... 

30.1 inch ridging remains over the lake today extending from a 30.2 
inch high pressure moving east through quebec. meanwhile, low 
pressure will move from northern saskatchewan to hudson bay, 
deepening to 29.5 inches as it reaches hudson bay on tuesday 
morning. as the low departs the hudson bay, moving east, it will 
extend a 29.8 inch trough over lake superior on wednesday. 
thereafter high pressure at 29.9 inches builds over the upper great 
lakes for thursday and friday.




lsz264-062000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am edt mon jul 6 2026

.early this morning...southeast winds less than 10 knots. waves
calm to 2 feet. 
.today...southeast winds less than 10 knots becoming east 5 to
15 knots in the afternoon, then veering southeast late. waves
calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots veering southwest late.
waves calm to 2 feet. 
.tuesday...west winds 5 to 15 knots backing southwest late. a
slight chance of showers through early afternoon. waves calm to
2 feet. 
.tuesday night...southwest winds less than 10 knots backing east
after midnight. a chance of showers after midnight. waves calm to
2 feet. 
.wednesday...east winds less than 10 knots. showers likely. waves
calm to 2 feet. 
.wednesday night...east winds less than 10 knots becoming north
5 to 15 knots after midnight. a chance of showers. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots veering south. waves calm to
2 feet. 

$$

fzus63 kmqt 060801
glfls 
expires:202607062000;;500140

open lake forecast for lake superior
national weather service marquette mi
401 am edt mon jul 6 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... 

30.1 inch ridging remains over the lake today extending from a 30.2 
inch high pressure moving east through quebec. meanwhile, low 
pressure will move from northern saskatchewan to hudson bay, 
deepening to 29.5 inches as it reaches hudson bay on tuesday 
morning. as the low departs the hudson bay, moving east, it will 
extend a 29.8 inch trough over lake superior on wednesday. 
thereafter high pressure at 29.9 inches builds over the upper great 
lakes for thursday and friday.




lsz265-062000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt mon jul 6 2026

.early this morning...southeast winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southeast winds 5 to 15 knots backing east in the
afternoon, then becoming southeast 10 to 20 knots late. waves
calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots veering southwest late.
waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. a slight chance of showers and thunderstorms by mid
afternoon. waves calm to 2 feet. 
.tuesday night...southeast winds 5 to 15 knots veering south
after midnight. a chance of showers and a slight chance of
thunderstorms. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots. showers. waves calm to
2 feet. 
.wednesday night...east winds 5 to 15 knots backing north after
midnight. showers likely through midnight. a chance of
thunderstorms. a chance of showers after midnight. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots veering southeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 060801
glfls 
expires:202607062000;;500141

open lake forecast for lake superior
national weather service marquette mi
401 am edt mon jul 6 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... 

30.1 inch ridging remains over the lake today extending from a 30.2 
inch high pressure moving east through quebec. meanwhile, low 
pressure will move from northern saskatchewan to hudson bay, 
deepening to 29.5 inches as it reaches hudson bay on tuesday 
morning. as the low departs the hudson bay, moving east, it will 
extend a 29.8 inch trough over lake superior on wednesday. 
thereafter high pressure at 29.9 inches builds over the upper great 
lakes for thursday and friday.




lsz266-062000-
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 am edt mon jul 6 2026

.early this morning...north winds less than 10 knots. waves calm
to 2 feet. 
.today...southeast winds less than 10 knots increasing to 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots becoming south 10 to
20 knots after midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots veering west in the
afternoon, then diminishing to less than 10 knots late. a slight
chance of showers by mid afternoon. waves calm to 2 feet. 
.tuesday night...south winds less than 10 knots becoming
southeast 5 to 15 knots after midnight. a chance of showers and a
slight chance of thunderstorms. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots. showers. waves calm to
2 feet. 
.wednesday night...east winds 5 to 15 knots backing north after
midnight. showers likely through midnight. a chance of
thunderstorms. a chance of showers after midnight. waves calm to
2 feet. 
.thursday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 
.friday...northeast winds 5 to 15 knots veering south. waves calm
to 2 feet. 

$$

fzus63 kmqt 060801
glfls 
expires:202607062000;;500142

open lake forecast for lake superior
national weather service marquette mi
401 am edt mon jul 6 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... 

30.1 inch ridging remains over the lake today extending from a 30.2 
inch high pressure moving east through quebec. meanwhile, low 
pressure will move from northern saskatchewan to hudson bay, 
deepening to 29.5 inches as it reaches hudson bay on tuesday 
morning. as the low departs the hudson bay, moving east, it will 
extend a 29.8 inch trough over lake superior on wednesday. 
thereafter high pressure at 29.9 inches builds over the upper great 
lakes for thursday and friday.




lsz267-062000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am edt mon jul 6 2026

.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...south winds less than 10 knots veering northwest in the
afternoon, then veering north late. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.tuesday...south winds 5 to 15 knots backing north late. a chance
of showers by mid afternoon. waves calm to 2 feet. 
.tuesday night...south winds less than 10 knots becoming east
5 to 15 knots after midnight. a chance of showers. a slight
chance of thunderstorms after midnight. waves calm to 2 feet. 
.wednesday...southeast winds 5 to 15 knots backing east by mid
afternoon. showers. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots veering southeast
after midnight. showers and a chance of thunderstorms. waves calm
to 2 feet. 
.thursday...northwest winds 10 to 20 knots becoming north 5 to
15 knots. a chance of showers. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots veering south. waves calm to
2 feet. 

$$