fzus61 kbuf 010802
glflo 
expires:202609011500;;708552

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt tue sep 1 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a frontal boundary will remain stalled near the lake 
through this evening before moving northeast across the lake as a 
warm front late tonight through wednesday morning. the front will 
then settle back south across the lake thursday. a 30.1 inch high 
over northwest ontario province friday will settle south into the 
lower great lakes saturday through sunday.


loz062-011500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt tue sep 1 2026

.today...south winds 10 knots or less becoming north. showers
likely with a chance of thunderstorms early, then a chance of
showers late this morning. waves 1 foot or less. 
.tonight...light and variable winds becoming southeast 5 to
10 knots. patchy fog late. a chance of showers and thunderstorms
late. waves 1 foot or less. 
.wednesday...southeast winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms in the morning, then showers
with thunderstorms likely in the afternoon. waves 1 foot or less.
.wednesday night...southwest winds 5 to 10 knots becoming west.
showers with thunderstorms likely. waves 1 foot or less. 
.thursday...west winds 5 to 10 knots becoming northwest. showers
with a chance of thunderstorms during the day. waves 1 foot or
less. 
.friday...northwest winds 10 knots or less becoming north. waves
1 foot or less. 
.saturday...northeast winds 10 knots or less becoming east. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 010802
glflo 
expires:202609011500;;708553

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt tue sep 1 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a frontal boundary will remain stalled near the lake 
through this evening before moving northeast across the lake as a 
warm front late tonight through wednesday morning. the front will 
then settle back south across the lake thursday. a 30.1 inch high 
over northwest ontario province friday will settle south into the 
lower great lakes saturday through sunday.


loz063>065-011500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt tue sep 1 2026

.today...southeast winds 5 to 15 knots becoming northeast less
than 10 knots. showers with a chance of thunderstorms this
morning. waves 2 feet or less. 
.tonight...light and variable winds becoming south 5 to 10 knots.
patchy fog after midnight. waves 1 foot or less. 
.wednesday...southeast winds 5 to 15 knots becoming south. a
chance of showers and thunderstorms in the morning, then showers
with thunderstorms likely in the afternoon. waves 2 feet or less.
.wednesday night...south winds 10 to 15 knots becoming southwest.
showers with thunderstorms likely. waves 2 feet or less. 
.thursday...west winds 5 to 10 knots becoming northwest. showers
likely during the day. waves 1 to 2 feet. 
.friday...northwest winds 5 to 10 knots becoming north. waves
1 foot or less. 
.saturday...north winds 5 to 10 knots becoming northeast. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 010747
glfle 
expires:202609011430;;708063

open lake forecast for lake erie
national weather service cleveland oh
347 am edt tue sep 1 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a stationary front north-east of lake erie will move little as 
high pressure of 30.10 inches remains entrenched to the south. 
low pressure 29.70 inches will move east across the upper great 
lakes on wednesday, extending a cold front through the area on 
thursday. this front will linger south of lake erie on friday as 
high pressure ridge 30.10 inches build in from the north.


lez162-163-011430-
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-
347 am edt tue sep 1 2026

.today...southwest winds 5 to 15 knots. waves 2 feet or less. 
.tonight...southwest winds 5 to 10 knots. a slight chance of
showers and thunderstorms early. a chance of showers with a
slight chance of thunderstorms late. waves 1 foot or less. 
.wednesday...southwest winds 5 to 10 knots. waves 1 foot or less.
.wednesday night...southwest winds around 10 knots. a chance of
showers overnight. waves around 1 foot. 
.thursday...west winds 10 knots or less becoming east. a chance
of showers and thunderstorms. waves 1 foot or less. 
.friday...east winds 10 knots or less becoming northeast. a
chance of showers and thunderstorms. waves 1 foot or less. 
.saturday...northeast winds 5 to 10 knots becoming east. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 010747
glfle 
expires:202609011430;;708064

open lake forecast for lake erie
national weather service cleveland oh
347 am edt tue sep 1 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a stationary front north-east of lake erie will move little as 
high pressure of 30.10 inches remains entrenched to the south. 
low pressure 29.70 inches will move east across the upper great 
lakes on wednesday, extending a cold front through the area on 
thursday. this front will linger south of lake erie on friday as 
high pressure ridge 30.10 inches build in from the north.


lez164>166-011430-
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-
347 am edt tue sep 1 2026

.today...southwest winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...southwest winds 5 to 10 knots. a slight chance of
showers and thunderstorms through the early overnight, then a
chance of showers and thunderstorms late. waves 2 feet or less. 
.wednesday...southwest winds 5 to 10 knots. waves 2 feet or less.
.wednesday night...southwest winds 10 to 15 knots. a chance of
showers and thunderstorms overnight. waves 1 to 3 feet. 
.thursday...west winds 10 knots or less becoming northeast. a
chance of showers and thunderstorms. waves 2 feet or less. 
.friday...northeast winds 10 knots or less. a chance of showers
and thunderstorms during the day, then a chance of showers friday
night. waves 2 feet or less. 
.saturday...northeast winds 5 to 15 knots becoming east. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 010747
glfle 
expires:202609011430;;708065

open lake forecast for lake erie
national weather service cleveland oh
347 am edt tue sep 1 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a stationary front north-east of lake erie will move little as 
high pressure of 30.10 inches remains entrenched to the south. 
low pressure 29.70 inches will move east across the upper great 
lakes on wednesday, extending a cold front through the area on 
thursday. this front will linger south of lake erie on friday as 
high pressure ridge 30.10 inches build in from the north.


lez061-167>169-011430-
ripley to buffalo ny extending from 5nm 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-
347 am edt tue sep 1 2026

.today...southwest winds 15 to 20 knots becoming west 5 to
15 knots. a chance of showers early. waves 2 to 4 feet subsiding
to 1 to 3 feet. 
.tonight...southwest winds 5 to 10 knots. a chance of
thunderstorms with a slight chance of showers after midnight. a
chance of showers and thunderstorms late. waves 1 to 2 feet. 
.wednesday...southwest winds 5 to 10 knots. a chance of showers
and thunderstorms in the morning. waves 1 to 2 feet. 
.wednesday night...southwest winds 10 to 15 knots. showers likely
with a chance of thunderstorms. waves 1 to 3 feet. 
.thursday...west winds 10 knots or less becoming north. a chance
of showers. waves 2 feet or less. 
.friday...north winds 10 knots or less becoming northeast. waves
2 feet or less. 
.saturday...northeast winds 5 to 15 knots becoming east. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 010754
glfsc 
expires:202609011600;;708251

lake st clair forecast
national weather service detroit/pontiac mi
354 am edt tue sep 1 2026

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

.synopsis...low pressure now over southern manitoba slowly tracks
across northern ontario through the midweek. its cold front is
likely to stall across the area on wednesday.


lcz460-011600-
lake st clair-
354 am edt tue sep 1 2026

.today...southwest winds 5 to 10 knots backing to the south late in
the afternoon. mostly sunny with a chance of light showers early in
the morning...then mostly sunny in the late morning and afternoon.
waves 2 feet or less.
.tonight...southwest winds 5 to 10 knots. partly cloudy. a chance of
light showers early in the morning. waves 2 feet or less.
.wednesday...southwest winds 5 to 10 knots. mostly sunny. a chance
of showers and thunderstorms early in the afternoon. waves 2 feet or
less.
.wednesday night...west winds 5 to 10 knots. partly cloudy. light
showers likely and a chance of thunderstorms ...then light showers
likely after midnight. waves 2 feet or less.
.thursday...northwest winds 5 to 10 knots in the morning becoming
light and variable...then becoming northeast 5 to 10 knots in the
evening. partly sunny in the morning...then partly cloudy with a
chance of light showers in the afternoon and evening. waves 2 feet
or less.
.friday...northeast winds 5 to 10 knots. partly cloudy. a chance of
showers. waves 2 feet or less.
.saturday...northeast winds 5 to 10 knots. partly cloudy. waves 2
feet or less.

$$

fzus63 kdtx 010753
glflh 
expires:202609011600;;708213

open lake forecast for lake huron
national weather service detroit/pontiac mi
353 am edt tue sep 1 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...low pressure now over southern manitoba slowly tracks
across northern ontario through the midweek. its cold front is
likely to stall across the area on wednesday.


lhz462>464-011600-
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-
353 am edt tue sep 1 2026

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


$$

fzus63 kdtx 010753
glflh 
expires:202609011600;;708212

open lake forecast for lake huron
national weather service detroit/pontiac mi
353 am edt tue sep 1 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...low pressure now over southern manitoba slowly tracks
across northern ontario through the midweek. its cold front is
likely to stall across the area on wednesday.


lhz362-363-011600-
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-
353 am edt tue sep 1 2026

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


$$

fzus63 kdtx 010753
glflh 
expires:202609011600;;708211

open lake forecast for lake huron
national weather service detroit/pontiac mi
353 am edt tue sep 1 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...low pressure now over southern manitoba slowly tracks
across northern ontario through the midweek. its cold front is
likely to stall across the area on wednesday.


lhz361-011600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
353 am edt tue sep 1 2026

...dense fog advisory in effect until 2 pm edt this afternoon...

.today...light and variable winds. waves 2 feet or less. 
.tonight...southeast winds 5 to 10 knots in the evening becoming
light and variable. waves 2 feet or less. 
.wednesday...west winds 5 to 10 knots. a chance of showers. waves
2 feet or less. 
.wednesday night...west winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.thursday...light and variable winds. waves 2 feet or less. 
.friday...light and variable winds. waves 2 feet or less. 
.saturday...east winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kmkx 010803
glflm 
expires:202609011530;;708576

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
303 am cdt tue sep 1 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

light winds, combined with a lingering humid air mass, will 
support areas of fog development across lake michigan both this
morning and again tonight. off and on thunderstorms remain 
forecast through wednesday morning as a cold front lingers just to
the north of the open waters. widespread severe weather isn't 
expected in any thunderstorm activity, though an isolated stronger
cell with hail and gusty winds can't be entirely ruled out. 

light to modest southerly winds today will shift east- 
northeasterly through the second half of the week as 30.1 inch 
high pressure builds over the hudson bay and broad, 29.6 inch low 
pressure moves into the northern great plains. an unsettled 
pattern featuring multiple additional thunderstorm chances will 
continue through at least friday night. similar to earlier week 
storms, widespread severe weather isn't anticipated, though 
isolated stronger storms with hail and gusty winds are possible.


lmz261-362-364-366-563-565-567-868-011530-
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-
303 am cdt tue sep 1 2026

sheboygan wi to pentwater mi north...

.today...northeast winds 5 to 10 kt veering to south late this
morning, then increasing to 10 to 15 kt early this afternoon
becoming south 10 to 15 kt late. patchy dense fog. waves 1 to
3 ft. 
.tonight...south winds 10 to 15 kt becoming southwest 5 to 10 kt.
slight chance of showers and thunderstorms overnight. waves 1 to
2 ft. 
.wednesday...west winds 5 to 10 kt veering to north 10 to 15 kt.
chance of showers. waves 1 to 2 ft. 
.wednesday night...north winds 5 to 10 kt becoming northeast.
waves 1 ft or less. 
.thursday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 ft or less. 
.thursday night...northeast winds 10 to 15 kt diminishing to 5 to
10 kt. chance of showers. waves nearly calm. 
.friday...east winds 5 to 10 kt becoming northeast 10 to 15 kt.
chance of showers. waves 1 ft or less. 
.saturday...east winds 10 to 15 kt becoming northeast. waves 1 to
2 ft.  

$$

fzus63 kmkx 010803
glflm 
expires:202609011530;;708577

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
303 am cdt tue sep 1 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

light winds, combined with a lingering humid air mass, will 
support areas of fog development across lake michigan both this
morning and again tonight. off and on thunderstorms remain 
forecast through wednesday morning as a cold front lingers just to
the north of the open waters. widespread severe weather isn't 
expected in any thunderstorm activity, though an isolated stronger
cell with hail and gusty winds can't be entirely ruled out. 

light to modest southerly winds today will shift east- 
northeasterly through the second half of the week as 30.1 inch 
high pressure builds over the hudson bay and broad, 29.6 inch low 
pressure moves into the northern great plains. an unsettled 
pattern featuring multiple additional thunderstorm chances will 
continue through at least friday night. similar to earlier week 
storms, widespread severe weather isn't anticipated, though 
isolated stronger storms with hail and gusty winds are possible.


lmz080-669-671-673-675-777-779-870-872-874-876-878-011530-
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-
303 am cdt tue sep 1 2026

sheboygan wi to pentwater mi south...

.today...west winds 5 to 10 kt becoming south 10 to 15 kt. patchy
fog this morning. slight chance of showers and thunderstorms this
afternoon. waves 1 to 2 ft. 
.tonight...south winds 10 to 15 kt becoming southwest 5 to 10 kt.
slight chance of showers and thunderstorms. waves 1 to 2 ft. 
.wednesday...southwest winds 5 to 10 kt becoming south 10 to
15 kt. waves 1 to 2 ft. 
.wednesday night...southwest winds 10 to 15 kt veering to
northwest. chance of showers. waves 1 to 2 ft. 
.thursday...north winds 5 to 10 kt increasing to 10 to 15 kt.
chance of showers. waves 1 to 2 ft. 
.thursday night...northeast winds 5 to 10 kt becoming east.
chance of showers. waves 1 to 2 ft. 
.friday...east winds 10 to 15 kt becoming northeast. chance of
showers and thunderstorms. waves 1 to 2 ft. 
.saturday...east winds 10 to 15 kt becoming northeast. waves 1 to
2 ft.  

$$

fzus63 kmqt 010801
glfls 
expires:202609012000;;708457

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue sep 1 2026

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

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

.synopsis...

a 29.7 inch low will slowly move east over ontario through wednesday 
and weaken to 29.8 inches as it reaches james bay. this will bring 
broad 29.9 inch troughing over the upper great lakes through 
wednesday. a 29.9 inch ridge will move into the area wednesday night 
and build to 30.0 inches through friday. ridging will give way to 
another weak trough on saturday night with ridging of 30.1 inches 
building back in for sunday.




lsz266-012000-
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 tue sep 1 2026

...dense fog advisory in effect until 2 pm edt this afternoon...

.early this morning...southwest winds 5 to 15 knots. widespread
dense fog. waves calm to 2 feet. 
.today...south winds 5 to 15 knots. widespread dense fog through
early afternoon. waves building to 1 to 3 feet. 
.tonight...west winds 5 to 15 knots increasing to 10 to 20 knots
late. waves subsiding to calm to 2 feet. 
.wednesday...west winds 10 to 20 knots becoming northwest 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.wednesday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...north winds 5 to 15 knots veering northeast by mid
afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. waves calm to 2 feet.
.friday...east winds 10 to 20 knots diminishing to 5 to 15 knots.
waves calm to 2 feet. 
.saturday...east winds 10 to 20 knots veering south. waves calm
to 2 feet. 

$$

fzus63 kmqt 010801
glfls 
expires:202609012000;;708458

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue sep 1 2026

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

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

.synopsis...

a 29.7 inch low will slowly move east over ontario through wednesday 
and weaken to 29.8 inches as it reaches james bay. this will bring 
broad 29.9 inch troughing over the upper great lakes through 
wednesday. a 29.9 inch ridge will move into the area wednesday night 
and build to 30.0 inches through friday. ridging will give way to 
another weak trough on saturday night with ridging of 30.1 inches 
building back in for sunday.




lsz267-012000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt tue sep 1 2026

...dense fog advisory in effect until 2 pm edt this afternoon...

.early this morning...west winds 5 to 15 knots. widespread dense
fog. waves calm to 2 feet. 
.today...southwest winds 5 to 15 knots backing southeast late.
widespread dense fog through early afternoon. waves calm to
2 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots veering northwest late.
waves calm to 2 feet. 
.wednesday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots veering south. waves calm to
2 feet. 

$$

fzus63 kmqt 010801
glfls 
expires:202609012000;;708453

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue sep 1 2026

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

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

.synopsis...

a 29.7 inch low will slowly move east over ontario through wednesday 
and weaken to 29.8 inches as it reaches james bay. this will bring 
broad 29.9 inch troughing over the upper great lakes through 
wednesday. a 29.9 inch ridge will move into the area wednesday night 
and build to 30.0 inches through friday. ridging will give way to 
another weak trough on saturday night with ridging of 30.1 inches 
building back in for sunday.




lsz162-012000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt tue sep 1 2026 /300 am cdt tue sep 1 2026/

...dense fog advisory in effect until 11 am edt /10 am cdt/ this
morning...

.early this morning...southwest winds 5 to 15 knots. areas of
dense fog. waves calm to 2 feet. 
.today...southwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon, then veering west late. areas of dense
fog through early afternoon. waves building to 1 to 3 feet. 
.tonight...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.wednesday...north winds 5 to 15 knots veering south in the
afternoon. waves calm to 2 feet. 
.wednesday night...east winds less than 10 knots becoming
northeast 5 to 15 knots after midnight. waves calm to 2 feet. 
.thursday...northeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 1 to 3 feet. 
.thursday night...northeast winds 10 to 20 knots. a chance of
showers and thunderstorms. waves subsiding to calm to 2 feet. 
.friday...northeast winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 010801
glfls 
expires:202609012000;;708455

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue sep 1 2026

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

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

.synopsis...

a 29.7 inch low will slowly move east over ontario through wednesday 
and weaken to 29.8 inches as it reaches james bay. this will bring 
broad 29.9 inch troughing over the upper great lakes through 
wednesday. a 29.9 inch ridge will move into the area wednesday night 
and build to 30.0 inches through friday. ridging will give way to 
another weak trough on saturday night with ridging of 30.1 inches 
building back in for sunday.




lsz264-012000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt tue sep 1 2026

...dense fog advisory in effect until 11 am edt this morning...

.early this morning...southwest winds 5 to 15 knots. widespread
dense fog. waves calm to 2 feet. 
.today...southwest winds 10 to 20 knots increasing to 15 to
25 knots late. areas of dense fog through early afternoon. waves
building to 1 to 3 feet. 
.tonight...west winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then becoming southwest 5 to 15 knots
late. waves calm to 2 feet. 
.wednesday night...west winds less than 10 knots veering
northwest after midnight. waves calm to 2 feet. 
.thursday...northeast winds less than 10 knots becoming east 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. waves calm to 2 feet.
.friday...east winds 10 to 20 knots. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots veering southeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 010801
glfls 
expires:202609012000;;708454

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue sep 1 2026

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

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

.synopsis...

a 29.7 inch low will slowly move east over ontario through wednesday 
and weaken to 29.8 inches as it reaches james bay. this will bring 
broad 29.9 inch troughing over the upper great lakes through 
wednesday. a 29.9 inch ridge will move into the area wednesday night 
and build to 30.0 inches through friday. ridging will give way to 
another weak trough on saturday night with ridging of 30.1 inches 
building back in for sunday.




lsz263-012000-
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 tue sep 1 2026

...dense fog advisory in effect until 11 am edt this morning...

.early this morning...southwest winds 5 to 15 knots. areas of
dense fog. waves calm to 2 feet. 
.today...southwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon, then veering west late. areas of dense
fog through early afternoon. waves building to 2 to 4 feet. 
.tonight...west winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing southwest
late. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots becoming southeast
less than 10 knots after midnight. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots increasing to 15 to 25 knots
by mid afternoon. waves calm to 2 feet. 
.thursday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a chance of thunderstorms. waves calm to
2 feet. 
.friday...east winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.saturday...east winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet. 

$$

fzus63 kmqt 010801
glfls 
expires:202609012000;;708456

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue sep 1 2026

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

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

.synopsis...

a 29.7 inch low will slowly move east over ontario through wednesday 
and weaken to 29.8 inches as it reaches james bay. this will bring 
broad 29.9 inch troughing over the upper great lakes through 
wednesday. a 29.9 inch ridge will move into the area wednesday night 
and build to 30.0 inches through friday. ridging will give way to 
another weak trough on saturday night with ridging of 30.1 inches 
building back in for sunday.




lsz265-012000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt tue sep 1 2026

...dense fog advisory in effect until 2 pm edt this afternoon...

.early this morning...southwest winds 5 to 15 knots. widespread
dense fog. waves calm to 2 feet. 
.today...south winds 10 to 20 knots veering west late. areas of
dense fog through early afternoon. waves calm to 2 feet. 
.tonight...west winds 10 to 20 knots. waves calm to 2 feet. 
.wednesday...west winds 10 to 20 knots becoming northwest 5 to
15 knots in the afternoon, then veering northeast late. waves
calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. a chance of showers
after midnight. waves calm to 2 feet. 
.friday...east winds 15 to 25 knots becoming southeast 10 to
20 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.saturday...east winds 10 to 20 knots veering south. a chance of
showers. waves calm to 2 feet. 

$$