fzus61 kbuf 022002
glflo 
expires:202607030300;;297354

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt thu jul 2 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 anchored near the mid and 
upper ohio valley and extend a ridge over lake ontario through 
friday. a weak cold front will drift southward across the lake 
saturday through saturday night. behind the front, a ridge should 
build over lake ontario as a 30.2 inch high moves from near james 
bay toward atlantic waters near the canadian maritimes through this 
tuesday.


loz062-030300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt thu jul 2 2026

.tonight...southwest winds 10 to 15 knots. a chance of showers
and thunderstorms early, then a chance of showers late this
evening. waves 1 to 3 feet. 
.friday...southwest winds 5 to 15 knots. a chance of showers late
in the morning. a chance of showers and thunderstorms early in
the afternoon, then showers likely with a chance of thunderstorms
late. waves 1 to 2 feet. 
.friday night...west winds 10 to 15 knots. showers likely with a
chance of thunderstorms. waves 1 to 2 feet. 
.saturday...northwest winds 10 knots or less becoming west.
showers likely in the morning, then a chance of showers in the
afternoon. waves 1 foot or less. 
.saturday night...west winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.sunday...east winds 5 to 10 knots. a chance of showers. waves
2 feet or less. 
.monday...east winds 5 to 15 knots. a chance of showers. waves
1 to 2 feet. 
.tuesday...east winds 10 knots or less becoming southwest. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 022002
glflo 
expires:202607030300;;297355

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt thu jul 2 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 anchored near the mid and 
upper ohio valley and extend a ridge over lake ontario through 
friday. a weak cold front will drift southward across the lake 
saturday through saturday night. behind the front, a ridge should 
build over lake ontario as a 30.2 inch high moves from near james 
bay toward atlantic waters near the canadian maritimes through this 
tuesday.


loz063>065-030300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt thu jul 2 2026

.tonight...west winds 5 to 15 knots. a chance of showers and
thunderstorms this evening. waves 1 to 3 feet. 
.friday...west winds 5 to 15 knots. a chance of showers and
thunderstorms early. a chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet. 
.friday night...west winds 10 to 15 knots. showers likely with a
chance of thunderstorms. waves 1 to 2 feet. 
.saturday...northwest winds 5 to 10 knots becoming west. showers
likely in the morning, then a chance of showers in the afternoon.
waves 2 feet or less. 
.saturday night...west winds 10 knots or less becoming east.
waves 1 foot or less. 
.sunday...northeast winds 10 knots or less becoming east. a
chance of showers sunday night. waves 1 foot or less. 
.monday...east winds 5 to 10 knots becoming southeast. a chance
of showers. waves 1 foot or less. 
.tuesday...southeast winds 10 knots or less becoming south. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 021944
glfle 
expires:202607030215;;296833

open lake forecast for lake erie
national weather service cleveland oh
344 pm edt thu jul 2 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 ridge averaging 30.00 inches will remain over the area through 
friday night. a weak trough averaging 29.90 inches will settle 
south of lake erie friday night into saturday and stall. low 
pressure of 29.90 inches will track slowly east across lake erie 
sunday through monday night.


lez162>164-030215-
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 thu jul 2 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 021944
glfle 
expires:202607030215;;296834

open lake forecast for lake erie
national weather service cleveland oh
344 pm edt thu jul 2 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 ridge averaging 30.00 inches will remain over the area through 
friday night. a weak trough averaging 29.90 inches will settle 
south of lake erie friday night into saturday and stall. low 
pressure of 29.90 inches will track slowly east across lake erie 
sunday through monday night.


lez061-165>169-030215-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
344 pm edt thu jul 2 2026

.tonight...southwest winds 5 to 10 knots. a chance of showers
with a slight chance of thunderstorms late this evening. a slight
chance of showers after midnight. waves 1 to 3 feet. 
.friday...southwest winds 5 to 10 knots becoming west. a slight
chance of showers and thunderstorms late. waves 2 feet or less. 
.friday night...west winds 5 to 10 knots. a chance of showers and
thunderstorms. waves 2 feet or less. 
.saturday...west winds 5 to 10 knots. a chance of showers. waves
1 to 2 feet. 
.saturday night...northwest winds 10 knots or less becoming east.
a chance of showers in the evening, then a chance of showers and
thunderstorms overnight. waves 1 foot or less. 
.sunday...east winds 5 to 10 knots. a chance of showers and
thunderstorms. waves 2 feet or less. 
.monday...east winds 5 to 15 knots. a chance of showers and
thunderstorms during the day. waves 2 feet or less. 
.tuesday...north winds 5 to 10 knots becoming southeast. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 021941
glfsc 
expires:202607030400;;296738

lake st clair forecast
national weather service detroit/pontiac mi
341 pm edt thu jul 2 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 through friday. this will maintain a hot and humid
airmass in place over the central great lakes with light to
moderate south to southwest winds. there will also be a low
chance of showers and thunderstorms from time to time. a cold
front passes south across the region on saturday.


lcz460-030400-
lake st clair-
341 pm edt thu jul 2 2026

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

$$

fzus63 kdtx 021939
glflh 
expires:202607030400;;296682

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm edt thu jul 2 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 through friday. this will maintain a hot and humid
airmass in place over the central great lakes with light to
moderate south to southwest winds. there will also be a low
chance of showers and thunderstorms from time to time. a cold
front passes south across the region on saturday.


lhz462>464-030400-
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-
339 pm edt thu jul 2 2026

.tonight...north winds 5 to 10 knots backing to the southwest in
the late evening and overnight. a chance of showers after
midnight. waves 2 feet or less. 
.friday...southwest winds 5 to 10 knots. a chance of showers and
thunderstorms in the afternoon. waves 2 feet or less. 
.friday night...north winds 5 to 10 knots backing to the west in
the late evening and overnight. 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. waves 2 feet or less. 
.saturday night...northeast winds 5 to 10 knots. a chance of
showers after midnight. waves 2 feet or less. 
.sunday...east winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon...then decreasing to 5 to 10 knots late in
the evening. a chance of showers. waves 2 feet or less. 
.monday...northeast winds 5 to 10 knots. 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 kdtx 021939
glflh 
expires:202607030400;;296681

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm edt thu jul 2 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 through friday. this will maintain a hot and humid
airmass in place over the central great lakes with light to
moderate south to southwest winds. there will also be a low
chance of showers and thunderstorms from time to time. a cold
front passes south across the region on saturday.


lhz363-030400-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
339 pm edt thu jul 2 2026

.tonight...southwest winds 5 to 10 knots in the evening becoming
light and variable. waves 1 to 3 feet. 
.friday...light and variable winds becoming southwest 5 to
10 knots late in the morning...then backing to the southeast in
the afternoon. a chance of showers in the morning...then a chance
of showers and thunderstorms in the afternoon. waves 2 feet or
less. 
.friday night...light and variable winds becoming northwest 5 to
10 knots after midnight. 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. waves 2 feet or less. 
.saturday night...northeast winds 5 to 10 knots. a chance of
showers after midnight. waves 2 feet or less. 
.sunday...east winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon...then decreasing to 5 to 10 knots late in
the evening. a chance of showers. waves 1 to 3 feet. 
.monday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 


$$

fzus63 kdtx 021939
glflh 
expires:202607030400;;296680

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm edt thu jul 2 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 through friday. this will maintain a hot and humid
airmass in place over the central great lakes with light to
moderate south to southwest winds. there will also be a low
chance of showers and thunderstorms from time to time. a cold
front passes south across the region on saturday.


lhz361-362-030400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
339 pm edt thu jul 2 2026

.tonight...light and variable winds. waves 1 to 3 feet. 
.friday...light and variable winds. a chance of showers in the
morning...then a chance of showers and thunderstorms in the
afternoon. waves 2 feet or less. 
.friday night...southwest winds 5 to 10 knots veering to the
northwest in the late evening and overnight. a chance of showers
in the evening. 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 northeast
5 to 10 knots 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 1 to 3 feet. 
.monday...northeast winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 


$$

fzus63 kmkx 022034
glflm 
expires:202607030300;;298922

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
333 pm cdt thu jul 2 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 remain parked over 
the ohio valley and appalachian mountains into friday night. 
meanwhile, a trough of low pressure will remain over the great 
plains today into friday night. a weak low pressure area may then 
organize and slowly move across wisconsin and lake michigan from
saturday afternoon into sunday, or pass farther south across 
illinois into the ohio valley. modest south to southwest winds 
will persist today becoming a bit lighter tonight and friday.
light to modest winds are then forecast for the weekend, but with
some uncertainty on wind direction given low confidence in the
track of the low. a stormy period is expected for central and
southern lake michigan from tonight into the weekend. patchy 
marine fog will be possible at times as warm and humid air flows 
over the relatively cooler lake.


lmz080-669-671-673-675-777-779-870-872-874-876-878-030300-
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-
333 pm cdt thu jul 2 2026

sheboygan wi to pentwater mi south...

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

$$

fzus63 kmkx 022034
glflm 
expires:202607030300;;298921

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
333 pm cdt thu jul 2 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 remain parked over 
the ohio valley and appalachian mountains into friday night. 
meanwhile, a trough of low pressure will remain over the great 
plains today into friday night. a weak low pressure area may then 
organize and slowly move across wisconsin and lake michigan from
saturday afternoon into sunday, or pass farther south across 
illinois into the ohio valley. modest south to southwest winds 
will persist today becoming a bit lighter tonight and friday.
light to modest winds are then forecast for the weekend, but with
some uncertainty on wind direction given low confidence in the
track of the low. a stormy period is expected for central and
southern lake michigan from tonight into the weekend. patchy 
marine fog will be possible at times as warm and humid air flows 
over the relatively cooler lake.


lmz261-362-364-366-563-565-567-868-030300-
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-
333 pm cdt thu jul 2 2026

sheboygan wi to pentwater mi north...

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

$$

fzus63 kmqt 022001
glfls 
expires:202607030800;;297262

open lake forecast for lake superior
national weather service marquette mi
401 pm edt thu jul 2 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... 

29.6 inch low pressure centered over quebec this afternoon is 
keeping 29.8 inch troughing over the lake so far. expect height 
rises tonight into friday as high pressure over manitoba gradually 
builds to 30.1 inches while moving towards hudson bay and extends 
ridging over the lake. the high builds to 30.2 inches over hudson 
bay saturday and into sunday as a weak 29.9 inch low passes through 
the southern great lakes basin. monday, the high quickly becomes 
dislodged to the southeast by a 29.7 inch low over northern 
manitoba, sending the high over lake superior, northern ontario, and 
quebec. the ridge gradually weakens to around 30.0 inches tuesday 
through wednesday. 




lsz264-030800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt thu jul 2 2026

.late this afternoon...southwest winds 10 to 20 knots. waves 2 to
4 feet. 
.tonight...west winds 5 to 15 knots becoming north less than
10 knots late. waves subsiding to calm to 2 feet. 
.friday...northeast winds 5 to 15 knots backing north in the
afternoon, then veering east late. waves calm to 2 feet. 
.friday night...north winds 5 to 15 knots veering northeast 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 veering east
after midnight. 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 becoming east 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 diminishing to less than
10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 022001
glfls 
expires:202607030800;;297263

open lake forecast for lake superior
national weather service marquette mi
401 pm edt thu jul 2 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... 

29.6 inch low pressure centered over quebec this afternoon is 
keeping 29.8 inch troughing over the lake so far. expect height 
rises tonight into friday as high pressure over manitoba gradually 
builds to 30.1 inches while moving towards hudson bay and extends 
ridging over the lake. the high builds to 30.2 inches over hudson 
bay saturday and into sunday as a weak 29.9 inch low passes through 
the southern great lakes basin. monday, the high quickly becomes 
dislodged to the southeast by a 29.7 inch low over northern 
manitoba, sending the high over lake superior, northern ontario, and 
quebec. the ridge gradually weakens to around 30.0 inches tuesday 
through wednesday. 




lsz265-030800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt thu jul 2 2026

.late this afternoon...west winds 10 to 20 knots. waves calm to
2 feet. 
.tonight...south winds 5 to 15 knots veering northwest late.
waves calm to 2 feet. 
.friday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...north winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. a slight chance of showers
by mid afternoon. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. 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 backing southwest. waves calm
to 2 feet. 

$$

fzus63 kmqt 022001
glfls 
expires:202607030800;;297264

open lake forecast for lake superior
national weather service marquette mi
401 pm edt thu jul 2 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... 

29.6 inch low pressure centered over quebec this afternoon is 
keeping 29.8 inch troughing over the lake so far. expect height 
rises tonight into friday as high pressure over manitoba gradually 
builds to 30.1 inches while moving towards hudson bay and extends 
ridging over the lake. the high builds to 30.2 inches over hudson 
bay saturday and into sunday as a weak 29.9 inch low passes through 
the southern great lakes basin. monday, the high quickly becomes 
dislodged to the southeast by a 29.7 inch low over northern 
manitoba, sending the high over lake superior, northern ontario, and 
quebec. the ridge gradually weakens to around 30.0 inches tuesday 
through wednesday. 




lsz266-030800-
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 thu jul 2 2026

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

$$

fzus63 kmqt 022001
glfls 
expires:202607030800;;297265

open lake forecast for lake superior
national weather service marquette mi
401 pm edt thu jul 2 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... 

29.6 inch low pressure centered over quebec this afternoon is 
keeping 29.8 inch troughing over the lake so far. expect height 
rises tonight into friday as high pressure over manitoba gradually 
builds to 30.1 inches while moving towards hudson bay and extends 
ridging over the lake. the high builds to 30.2 inches over hudson 
bay saturday and into sunday as a weak 29.9 inch low passes through 
the southern great lakes basin. monday, the high quickly becomes 
dislodged to the southeast by a 29.7 inch low over northern 
manitoba, sending the high over lake superior, northern ontario, and 
quebec. the ridge gradually weakens to around 30.0 inches tuesday 
through wednesday. 




lsz267-030800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt thu jul 2 2026

.late this afternoon...southwest winds 5 to 15 knots. areas of
dense fog. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots becoming south less than
10 knots after midnight, then becoming north 5 to 15 knots late.
patchy fog. waves calm to 2 feet. 
.friday...north winds 5 to 15 knots backing northwest in the
afternoon. patchy fog through early afternoon. waves calm to
2 feet. 
.friday night...northwest winds 5 to 15 knots veering north late.
waves calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots backing north by mid
afternoon. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots veering east
after midnight. waves calm to 2 feet. 
.sunday...east winds 10 to 20 knots. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots backing northeast after
midnight. 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 backing southwest. waves calm
to 2 feet. 

$$

fzus63 kmqt 022001
glfls 
expires:202607030800;;297260

open lake forecast for lake superior
national weather service marquette mi
401 pm edt thu jul 2 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... 

29.6 inch low pressure centered over quebec this afternoon is 
keeping 29.8 inch troughing over the lake so far. expect height 
rises tonight into friday as high pressure over manitoba gradually 
builds to 30.1 inches while moving towards hudson bay and extends 
ridging over the lake. the high builds to 30.2 inches over hudson 
bay saturday and into sunday as a weak 29.9 inch low passes through 
the southern great lakes basin. monday, the high quickly becomes 
dislodged to the southeast by a 29.7 inch low over northern 
manitoba, sending the high over lake superior, northern ontario, and 
quebec. the ridge gradually weakens to around 30.0 inches tuesday 
through wednesday. 




lsz162-030800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt thu jul 2 2026 /301 pm cdt thu jul 2 2026/

.late this afternoon...southwest winds 10 to 20 knots. waves 1 to
3 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight, then veering northeast late. a slight chance of showers
and thunderstorms. waves subsiding to calm to 2 feet. 
.friday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.friday night...northeast winds 10 to 20 knots. a slight chance
of showers after midnight. waves calm to 2 feet. 
.saturday...northeast winds 15 to 25 knots. a chance of showers.
waves building to 1 to 3 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...north winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots diminishing to less than
10 knots. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots veering west. waves calm
to 2 feet. 

$$

fzus63 kmqt 022001
glfls 
expires:202607030800;;297261

open lake forecast for lake superior
national weather service marquette mi
401 pm edt thu jul 2 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... 

29.6 inch low pressure centered over quebec this afternoon is 
keeping 29.8 inch troughing over the lake so far. expect height 
rises tonight into friday as high pressure over manitoba gradually 
builds to 30.1 inches while moving towards hudson bay and extends 
ridging over the lake. the high builds to 30.2 inches over hudson 
bay saturday and into sunday as a weak 29.9 inch low passes through 
the southern great lakes basin. monday, the high quickly becomes 
dislodged to the southeast by a 29.7 inch low over northern 
manitoba, sending the high over lake superior, northern ontario, and 
quebec. the ridge gradually weakens to around 30.0 inches tuesday 
through wednesday. 




lsz263-030800-
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 thu jul 2 2026

.late this afternoon...southwest winds 10 to 20 knots. waves 2 to
4 feet. 
.tonight...southwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight, then veering northeast late. waves
subsiding to calm to 2 feet. 
.friday...northeast winds 5 to 15 knots veering east late. waves
calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots. a slight chance of
showers after midnight. waves calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a chance of showers by mid afternoon.
waves building to 1 to 3 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 5 to 15 knots backing southwest. waves calm
to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

$$