fzus61 kbuf 040801
glflo 
expires:202607041500;;385495

open lake forecast for lake ontario
national weather service buffalo ny
401 am edt sat jul 4 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 weak cold front will settle south across the lake 
this afternoon. a 30.2 inch high will then build from hudson bay 
today to quebec and northern new england sunday night. a weak 29.9 
inch low will then develop over ohio 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>065-041500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
401 am edt sat jul 4 2026

.today...west winds 10 knots or less. a chance of showers and
thunderstorms this morning, then showers likely with a chance of
thunderstorms this afternoon. waves 1 foot or less. 
.tonight...northwest winds less than 10 knots becoming northeast.
waves 1 foot or less. 
.sunday...northeast winds 5 to 10 knots. waves 1 foot or less. 
.sunday night...northeast winds 5 to 10 knots becoming east.
waves 2 feet or less. 
.monday...east winds 5 to 15 knots. a chance of showers. waves
2 feet or less. 
.tuesday...east winds 10 knots or less becoming south. a chance
of showers. waves 1 foot or less. 
.wednesday...southwest winds 10 knots or less. waves 1 foot or
less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 040202
glflo 
expires:202607040900;;370832

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm 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 weak cold front will settle south across the lake 
tonight, 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.


loz062-040900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt fri jul 3 2026

.overnight...west winds 5 to 10 knots. a chance of showers,
then showers likely late. waves 1 foot or less. 
.saturday...west winds less than 10 knots becoming southwest. a
chance of showers. waves 1 foot or less. 
.saturday night...east winds 10 knots or less. a chance of
showers. waves 1 foot or less. 
.sunday...east winds 5 to 15 knots. a chance of showers. waves
1 to 3 feet. 
.sunday night...east winds 10 to 15 knots. a chance of showers.
waves 1 to 3 feet. 
.monday...east winds 5 to 15 knots. showers likely with a chance
of thunderstorms during the day, then a chance of showers and
thunderstorms monday night. waves 1 to 3 feet. 
.tuesday...northeast winds 10 knots or less becoming west. a
chance of showers during the day. waves 1 foot or less. 
.wednesday...west winds 10 knots or less becoming southwest.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 040736
glfle 
expires:202607041415;;384867

open lake forecast for lake erie
national weather service cleveland oh
336 am edt sat jul 4 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 will waiver near lake erie through early sunday 
before pushing south on sunday. weak low pressure 29.90 inches 
will track through the northern ohio valley sunday night and 
monday. low pressure exits to the east and southeast on tuesday 
with high pressure 30.10 inches building in through wednesday. 


lez061-168-169-041415-
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-
336 am edt sat jul 4 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 040736
glfle 
expires:202607041415;;384865

open lake forecast for lake erie
national weather service cleveland oh
336 am edt sat jul 4 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 will waiver near lake erie through early sunday 
before pushing south on sunday. weak low pressure 29.90 inches 
will track through the northern ohio valley sunday night and 
monday. low pressure exits to the east and southeast on tuesday 
with high pressure 30.10 inches building in through wednesday. 


lez162>164-041415-
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-
336 am edt sat jul 4 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 040736
glfle 
expires:202607041415;;384866

open lake forecast for lake erie
national weather service cleveland oh
336 am edt sat jul 4 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 will waiver near lake erie through early sunday 
before pushing south on sunday. weak low pressure 29.90 inches 
will track through the northern ohio valley sunday night and 
monday. low pressure exits to the east and southeast on tuesday 
with high pressure 30.10 inches building in through wednesday. 


lez165>167-041415-
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-
336 am edt sat jul 4 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 040744
glfsc 
expires:202607041545;;385101

lake st clair forecast
national weather service detroit/pontiac mi
344 am edt sat jul 4 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...a weak cold front will move through today, stalling
out across southern michigan. this will shift wind direction to
the northeast. scattered to numerous showers with some embedded
thunderstorms will also be likely for the remainder of the
weekend, the strongest of which could produce isolated gusts aoa
34 knots.


lcz460-041545-
lake st clair-
344 am edt sat jul 4 2026

.today...west winds 5 to 10 knots backing to the southeast late in
the afternoon. partly sunny. a chance of light showers early in the
morning. a chance of thunderstorms in the afternoon. light showers
likely late in the afternoon. waves 2 feet or less.
.tonight...south winds 5 to 10 knots backing to the northeast in the
late evening and overnight. partly cloudy becoming mostly cloudy
late this evening becoming partly cloudy. a chance of showers and
thunderstorms in the evening. a chance of showers and thunderstorms
early in the morning. waves 2 feet or less.
.sunday...northeast winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. mostly cloudy. a chance of light showers
until late afternoon...then a chance of showers and thunderstorms
early in the afternoon. waves 2 feet or less.
.sunday night...northeast winds 10 to 15 knots. partly cloudy. a
chance of thunderstorms early in the evening. a chance of light
showers...then a chance of thunderstorms after midnight. waves 2
feet or less.
.monday...northeast winds 10 to 15 knots. partly sunny with a chance
of showers and thunderstorms in the morning...then partly cloudy in
the afternoon and evening. waves 2 feet or less.
.tuesday...east winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.wednesday...south winds 5 to 10 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 040743
glflh 
expires:202607041545;;385098

open lake forecast for lake huron
national weather service detroit/pontiac mi
343 am edt sat jul 4 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...a weak cold front will move through today, stalling
out across southern michigan. this will shift wind direction to
the northeast. scattered to numerous showers with some embedded
thunderstorms will also be likely for the remainder of the
weekend, the strongest of which could produce isolated gusts aoa
34 knots.


lhz362-363-041545-
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-
343 am edt sat jul 4 2026

.today...light and variable winds becoming northeast 5 to
10 knots in the late morning and afternoon. a chance of showers.
waves 2 feet or less. 
.tonight...northeast winds 5 to 10 knots. waves 2 feet or less. 
.sunday...northeast winds 10 to 15 knots. waves 2 to 4 feet. 
.sunday night...northeast winds 5 to 10 knots. waves 2 to 4 feet.
.monday...northeast winds 5 to 10 knots becoming light and
variable. waves 1 to 3 feet. 
.tuesday...light and variable winds. waves 2 feet or less. 
.wednesday...light and variable winds. waves 2 feet or less. 


$$

fzus63 kdtx 040743
glflh 
expires:202607041545;;385097

open lake forecast for lake huron
national weather service detroit/pontiac mi
343 am edt sat jul 4 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...a weak cold front will move through today, stalling
out across southern michigan. this will shift wind direction to
the northeast. scattered to numerous showers with some embedded
thunderstorms will also be likely for the remainder of the
weekend, the strongest of which could produce isolated gusts aoa
34 knots.


lhz361-041545-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
343 am edt sat jul 4 2026

.today...north winds 5 to 10 knots veering to the northeast early
in the afternoon...then becoming light and variable late in the
afternoon. waves 2 feet or less. 
.tonight...light and variable winds becoming northeast 5 to
10 knots early in the morning. waves 2 feet or less. 
.sunday...northeast winds 10 to 15 knots becoming light and
variable. waves 2 to 4 feet. 
.sunday night...light and variable winds. waves 1 to 3 feet. 
.monday...northeast winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 
.wednesday...light and variable winds becoming southwest 5 to
10 knots . a chance of showers . waves 2 feet or less. 


$$

fzus63 kdtx 040743
glflh 
expires:202607041545;;385099

open lake forecast for lake huron
national weather service detroit/pontiac mi
343 am edt sat jul 4 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...a weak cold front will move through today, stalling
out across southern michigan. this will shift wind direction to
the northeast. scattered to numerous showers with some embedded
thunderstorms will also be likely for the remainder of the
weekend, the strongest of which could produce isolated gusts aoa
34 knots.


lhz462>464-041545-
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-
343 am edt sat jul 4 2026

.today...light and variable winds becoming north 5 to 10 knots in
the afternoon. a chance of showers. waves 2 feet or less. 
.tonight...north winds 5 to 10 knots. a chance of showers in the
evening. waves 2 feet or less. 
.sunday...northeast winds 5 to 10 knots becoming north 10 to
15 knots early in the afternoon. waves 1 to 3 feet. 
.sunday night...north winds 10 to 15 knots becoming northeast
5 to 10 knots in the late evening and overnight. 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. 
.wednesday...light and variable winds becoming north 5 to
10 knots early in the evening...then veering to the southeast by
midnight. waves 2 feet or less. 


$$

fzus63 kmkx 040247
glflm 
expires:202607040915;;372522

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
947 pm 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...

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. shower and thunderstorm chances will end
sunday night with quieter weather for the start of next week.


lmz261-362-364-366-563-565-567-868-040915-
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-
947 pm cdt fri jul 3 2026

sheboygan wi to pentwater mi north...

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

$$

fzus63 kmkx 040247
glflm 
expires:202607040915;;372523

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
947 pm 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...

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. shower and thunderstorm chances will end
sunday night with quieter weather for the start of next week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-040915-
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-
947 pm cdt fri jul 3 2026

sheboygan wi to pentwater mi south...

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

$$

fzus63 kmqt 040801
glfls 
expires:202607042000;;385468

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat jul 4 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

a 30.2 inch high over the hudson bay will extend a 30.0 inch ridge 
south over lake superior through sunday. 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, potentially extending a 29.9 inch trough over 
the lake. meanwhile, 30.1 inch high pressure builds over the 
northern plains, then moves over the great lakes for wednesday, 
weakening to 29.9 inches but remaining over the lake through 
thursday.




lsz263-042000-
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-
400 am edt sat jul 4 2026

.early this morning...northeast winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.today...northeast winds 5 to 15 knots increasing to 15 to
25 knots. waves building to 1 to 3 feet. 
.tonight...northeast winds 5 to 15 knots veering east after
midnight. a slight chance of showers after midnight. 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 east less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...southeast winds less than 10 knots veering south by mid
afternoon. waves calm to 2 feet. 
.monday night...south winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots veering west. waves calm
to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 040801
glfls 
expires:202607042000;;385472

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat jul 4 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

a 30.2 inch high over the hudson bay will extend a 30.0 inch ridge 
south over lake superior through sunday. 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, potentially extending a 29.9 inch trough over 
the lake. meanwhile, 30.1 inch high pressure builds over the 
northern plains, then moves over the great lakes for wednesday, 
weakening to 29.9 inches but remaining over the lake through 
thursday.




lsz267-042000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt sat jul 4 2026

.early this morning...north winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.today...northeast winds 5 to 15 knots becoming north 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots veering northeast after
midnight, then becoming east 10 to 20 knots late. waves calm to
2 feet. 
.sunday...east winds 5 to 15 knots backing north late. waves calm
to 2 feet. 
.sunday night...north winds 5 to 15 knots becoming northwest less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots veering west. waves calm
to 2 feet. 
.wednesday...west winds 5 to 15 knots veering northeast. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 040801
glfls 
expires:202607042000;;385470

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat jul 4 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

a 30.2 inch high over the hudson bay will extend a 30.0 inch ridge 
south over lake superior through sunday. 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, potentially extending a 29.9 inch trough over 
the lake. meanwhile, 30.1 inch high pressure builds over the 
northern plains, then moves over the great lakes for wednesday, 
weakening to 29.9 inches but remaining over the lake through 
thursday.




lsz265-042000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt sat jul 4 2026

.early this morning...north winds 5 to 15 knots. waves calm to
2 feet. 
.today...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots backing northeast after
midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots. waves calm to 2 feet. 
.monday...southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. waves calm to 2 feet. 
.tuesday...west winds 5 to 15 knots backing south. waves calm to
2 feet. 
.wednesday...east winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet. 

$$

fzus63 kmqt 040801
glfls 
expires:202607042000;;385471

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat jul 4 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

a 30.2 inch high over the hudson bay will extend a 30.0 inch ridge 
south over lake superior through sunday. 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, potentially extending a 29.9 inch trough over 
the lake. meanwhile, 30.1 inch high pressure builds over the 
northern plains, then moves over the great lakes for wednesday, 
weakening to 29.9 inches but remaining over the lake through 
thursday.




lsz266-042000-
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-
400 am edt sat jul 4 2026

.early this morning...northeast winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.today...northeast winds 5 to 15 knots backing north in the
afternoon. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots veering east late. waves
calm to 2 feet. 
.sunday...east winds 5 to 15 knots backing northeast late. 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...east winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. waves calm to 2 feet. 
.tuesday...west winds 5 to 15 knots backing southwest. waves calm
to 2 feet. 
.wednesday...west winds 5 to 15 knots backing east. a chance of
showers. waves calm to 2 feet. 

$$

fzus63 kmqt 040801
glfls 
expires:202607042000;;385469

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat jul 4 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

a 30.2 inch high over the hudson bay will extend a 30.0 inch ridge 
south over lake superior through sunday. 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, potentially extending a 29.9 inch trough over 
the lake. meanwhile, 30.1 inch high pressure builds over the 
northern plains, then moves over the great lakes for wednesday, 
weakening to 29.9 inches but remaining over the lake through 
thursday.




lsz264-042000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt sat jul 4 2026

.early this morning...northeast winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.today...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots veering east late. waves
calm to 2 feet. 
.sunday...east winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.monday...southeast winds less than 10 knots. waves calm to
2 feet. 
.monday night...south winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...east winds less than 10 knots increasing to 5 to
15 knots. a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 040801
glfls 
expires:202607042000;;385467

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat jul 4 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis... 

a 30.2 inch high over the hudson bay will extend a 30.0 inch ridge 
south over lake superior through sunday. 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, potentially extending a 29.9 inch trough over 
the lake. meanwhile, 30.1 inch high pressure builds over the 
northern plains, then moves over the great lakes for wednesday, 
weakening to 29.9 inches but remaining over the lake through 
thursday.




lsz162-042000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt sat jul 4 2026 /300 am cdt sat jul 4 2026/

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

$$