fzus61 kbuf 252003
glflo 
expires:202607260300;;595469

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sat jul 25 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.2 inch surface high off the new england coast will
slowly weaken as it drifts to the gulf of saint lawrence sunday. a 
29.5 inch low will develop over the western great lakes sunday night 
into monday, before strengthening to 29.3 inches while moving 
southeast into the lower great lakes monday night and tuesday. a 
cold front associated with this low will swing across the lake late 
tuesday and tuesday night. the low will then weaken to 29.6 inches 
while drifting east into new england by wednesday.


loz062-260300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt sat jul 25 2026

.tonight...east winds 10 knots or less becoming southwest. waves
1 foot or less. 
.sunday...southwest winds 10 knots or less becoming south. waves
1 foot or less. 
.sunday night...south winds 10 knots or less becoming southwest.
a chance of showers. waves 1 foot or less. 
.monday...west winds less than 10 knots becoming east. a chance
of showers and thunderstorms in the afternoon. waves 1 foot or
less. 
.monday night...southeast winds 5 to 10 knots. a chance of
showers and thunderstorms in the evening, then showers with a
chance of thunderstorms overnight. waves 1 foot or less. 
.tuesday...southeast winds 5 to 10 knots becoming north and
increasing to 15 to 20 knots. showers with a chance of
thunderstorms. waves 1 foot or less building to 3 to 5 feet. 
.wednesday...north winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers. waves 3 to 5 feet subsiding to
1 to 3 feet. 
.thursday...north winds 5 to 15 knots becoming northwest. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 252003
glflo 
expires:202607260300;;595470

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sat jul 25 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.2 inch surface high off the new england coast will
slowly weaken as it drifts to the gulf of saint lawrence sunday. a 
29.5 inch low will develop over the western great lakes sunday night 
into monday, before strengthening to 29.3 inches while moving 
southeast into the lower great lakes monday night and tuesday. a 
cold front associated with this low will swing across the lake late 
tuesday and tuesday night. the low will then weaken to 29.6 inches 
while drifting east into new england by wednesday.


loz063>065-260300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sat jul 25 2026

.tonight...northeast winds 10 to 15 knots becoming southwest
10 knots or less. a chance of showers late this evening. waves
2 feet or less. 
.sunday...southwest winds 10 knots or less. waves 1 foot or less.
.sunday night...south winds 10 knots or less becoming southwest.
a chance of showers. waves 1 foot or less. 
.monday...southwest winds 10 knots or less becoming east. a
chance of showers in the afternoon. waves 1 foot or less. 
.monday night...southeast winds 10 knots or less. a chance of
showers in the evening, then showers likely with a chance of
thunderstorms overnight. waves 1 foot or less. 
.tuesday...southeast winds 5 to 15 knots becoming northeast 15 to
20 knots. showers with a chance of thunderstorms. waves 2 feet or
less building to 2 to 4 feet. 
.wednesday...northeast winds 15 to 20 knots becoming north 10 to
15 knots. a chance of showers and thunderstorms. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.thursday...north winds 5 to 15 knots becoming northwest. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 251950
glfle 
expires:202607260215;;594979

open lake forecast for lake erie
national weather service cleveland oh
350 pm edt sat jul 25 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...
pressure averaging 30.00 inches will gradually decrease to 29.90 
inches sunday, and then continue to fall to 29.80 inches ahead of 
a cold front monday. this cold front will drop across lake erie 
late monday night into early tuesday morning. a trough averaging 
29.70 inches lingers tuesday before high pressure 30.00 inches 
returns midweek.


lez164>167-260215-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
350 pm edt sat jul 25 2026

.tonight...southwest winds 10 knots or less. waves 1 foot or
less. 
.sunday...west winds 5 to 10 knots. waves 1 foot or less. 
.sunday night...southwest winds 5 to 10 knots. a chance of
showers overnight. waves 1 foot or less. 
.monday...southwest winds 5 to 10 knots. a chance of showers.
waves 1 to 2 feet. 
.monday night...southwest winds 5 to 15 knots increasing to 15 to
20 knots. showers with a chance of thunderstorms. waves 1 to
3 feet building to 2 to 4 feet. 
.tuesday...west winds 15 to 20 knots becoming north. a chance of
showers during the day. waves 2 to 4 feet building to 3 to
5 feet, then subsiding to 2 to 4 feet. 
.wednesday...north winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 
.thursday...north winds 5 to 10 knots becoming northeast. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 251950
glfle 
expires:202607260215;;594980

open lake forecast for lake erie
national weather service cleveland oh
350 pm edt sat jul 25 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...
pressure averaging 30.00 inches will gradually decrease to 29.90 
inches sunday, and then continue to fall to 29.80 inches ahead of 
a cold front monday. this cold front will drop across lake erie 
late monday night into early tuesday morning. a trough averaging 
29.70 inches lingers tuesday before high pressure 30.00 inches 
returns midweek.


lez061-168-169-260215-
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-
350 pm edt sat jul 25 2026

.tonight...southwest winds 10 knots or less. waves 1 foot or
less. 
.sunday...southwest winds 5 to 10 knots becoming west. waves
1 foot or less. 
.sunday night...southwest winds 10 knots or less. waves around
1 foot. 
.monday...southwest winds 5 to 10 knots. a chance of showers.
waves 1 to 2 feet. 
.monday night...southwest winds 5 to 15 knots. showers with a
chance of thunderstorms. waves 1 to 3 feet building to 2 to
4 feet. 
.tuesday...southwest winds 10 to 15 knots becoming north 15 to
20 knots. showers likely with a chance of thunderstorms during
the day, then a chance of showers and thunderstorms tuesday
night. waves 2 to 4 feet. 
.wednesday...north winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 
.thursday...north winds 5 to 10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 251950
glfle 
expires:202607260215;;594978

open lake forecast for lake erie
national weather service cleveland oh
350 pm edt sat jul 25 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...
pressure averaging 30.00 inches will gradually decrease to 29.90 
inches sunday, and then continue to fall to 29.80 inches ahead of 
a cold front monday. this cold front will drop across lake erie 
late monday night into early tuesday morning. a trough averaging 
29.70 inches lingers tuesday before high pressure 30.00 inches 
returns midweek.


lez162-163-260215-
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-
350 pm edt sat jul 25 2026

.tonight...southeast winds 5 to 10 knots becoming west. waves
1 foot or less. 
.sunday...west winds 10 knots or less becoming south. a slight
chance of showers and thunderstorms late. waves 1 foot or less. 
.sunday night...south winds 10 knots or less becoming west. a
chance of showers overnight. waves 1 foot or less. 
.monday...west winds around 10 knots becoming southwest. a chance
of showers in the morning, then a chance of showers and
thunderstorms in the afternoon. waves 1 to 2 feet. 
.monday night...southwest winds 10 to 15 knots becoming west.
showers with a chance of thunderstorms. waves 1 to 2 feet. 
.tuesday...northwest winds 15 to 20 knots becoming north. waves
1 to 3 feet. 
.wednesday...north winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 feet or less. 
.thursday...north winds 10 knots or less becoming northeast.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 251941
glfsc 
expires:202607260345;;594902

lake st clair forecast
national weather service detroit/pontiac mi
341 pm edt sat jul 25 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...light winds out of the south-southwest between high
pressure and the next low over the plains. thunderstorm chances
increase sunday and monday ahead of the next low and its
attendant cold front monday night into tuesday.


lcz460-260345-
lake st clair-
341 pm edt sat jul 25 2026

.tonight...south winds 5 to 10 knots veering to the west early in
the morning. mostly clear. waves 2 feet or less.
.sunday...west winds 5 to 10 knots early in the morning becoming
light and variable...then becoming south 5 to 10 knots in the
afternoon. mostly sunny. waves 2 feet or less.
.sunday night...south winds 5 to 10 knots. partly cloudy. a chance
of showers and thunderstorms early in the evening. a chance of light
showers after midnight. waves 2 feet or less.
.monday...southwest winds 5 to 10 knots. partly sunny. showers
likely and a chance of thunderstorms early in the afternoon. waves 2
feet or less.
.monday night...southwest winds 10 to 15 knots veering to the
northwest after midnight. showers and a chance of thunderstorms
...then light showers likely after midnight. waves 2 feet or less.
.tuesday...north winds 15 to 20 knots increasing to 20 to 25 knots
with gusts to 30 knots in the evening. partly cloudy in the morning
then clearing. waves 1 to 3 feet. a small craft advisory may be
needed.
.wednesday...north winds 20 to 25 knots. mostly clear. waves 1 to 3
feet.
.thursday...northeast winds 10 to 15 knots. clear. waves 2 feet or
less.

$$

fzus63 kdtx 251941
glflh 
expires:202607260345;;594837

open lake forecast for lake huron
national weather service detroit/pontiac mi
341 pm edt sat jul 25 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...light winds out of the south-southwest between high
pressure and the next low over the plains. thunderstorm chances
increase sunday and monday ahead of the next low and its
attendant cold front monday night into tuesday.


lhz361-260345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
341 pm edt sat jul 25 2026

.tonight...west winds 10 to 20 knots becoming east 5 to 15 knots 
early in the evening becoming light and variable. a chance of 
showers after midnight. waves 1 to 3 feet. 
.sunday...light and variable winds. a chance of showers in the
morning. waves 2 feet or less. 
.sunday night...light and variable winds becoming southeast 5 to
10 knots by midnight...then becoming light and variable after
midnight. a chance of showers. waves 2 feet or less. 
.monday...light and variable winds becoming northeast 5 to
10 knots in the late morning and afternoon. a chance of showers
in the afternoon. waves 2 feet or less. 
.monday night...east winds 5 to 10 knots backing to the northeast
by midnight...then becoming north 10 to 15 knots after midnight.
a chance of showers and thunderstorms. waves 2 feet or less. 
.tuesday...north winds 10 to 15 knots backing to the northwest
late in the afternoon...then veering to the northwest 10 to
15 knots late in the evening. waves 1 to 3 feet. 
.wednesday...north winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then backing
to the northwest . waves 2 feet or less. 
.thursday...light and variable winds becoming southwest 5 to
10 knots . waves 2 feet or less. 


$$

fzus63 kdtx 251941
glflh 
expires:202607260345;;594838

open lake forecast for lake huron
national weather service detroit/pontiac mi
341 pm edt sat jul 25 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...light winds out of the south-southwest between high
pressure and the next low over the plains. thunderstorm chances
increase sunday and monday ahead of the next low and its
attendant cold front monday night into tuesday.


lhz362-363-260345-
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-
341 pm edt sat jul 25 2026

.tonight...southeast winds 10 to 15 knots becoming light and 
variable early in the morning. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.sunday...light and variable winds. waves 2 feet or less. 
.sunday night...light and variable winds becoming southeast 5 to
10 knots in the late evening and overnight. a chance of showers
after midnight. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots. a chance of showers in
the afternoon. waves 2 feet or less. 
.monday night...east winds 5 to 10 knots. a chance of showers and
thunderstorms. waves 1 to 3 feet. 
.tuesday...north winds 10 to 15 knots increasing to 15 to
20 knots. waves 2 to 4 feet. 
.wednesday...north winds 10 to 15 knots decreasing to 5 to
10 knots by midnight. waves 1 to 3 feet. 
.thursday...north winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kdtx 251941
glflh 
expires:202607260345;;594839

open lake forecast for lake huron
national weather service detroit/pontiac mi
341 pm edt sat jul 25 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...light winds out of the south-southwest between high
pressure and the next low over the plains. thunderstorm chances
increase sunday and monday ahead of the next low and its
attendant cold front monday night into tuesday.


lhz462>464-260345-
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-
341 pm edt sat jul 25 2026

.tonight...southeast winds 5 to 15 knots veering to the southwest
early in the morning. waves 2 feet or less. 
.sunday...west winds 5 to 10 knots in the morning becoming light
and variable. waves 2 feet or less. 
.sunday night...light and variable winds becoming east 5 to
10 knots by midnight...then veering to the south after midnight.
a chance of showers after midnight. waves 2 feet or less. 
.monday...south winds 5 to 10 knots. a chance of showers in the
afternoon. waves 2 feet or less. 
.monday night...east winds 5 to 10 knots backing to the west
after midnight. a chance of showers and thunderstorms in the
evening...then showers likely and a chance of thunderstorms after
midnight. waves 1 to 3 feet. 
.tuesday...north winds 10 to 15 knots increasing to 15 to
20 knots with gusts to around 30 knots late in the morning...then
increasing to 20 to 25 knots with gusts to around 30 knots late
in the afternoon decreasing to 15 to 20 knots with gusts to
around 30 knots late in the evening. waves 3 to 5 feet. 
.wednesday...north winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots by midnight. waves 2 to
4 feet. 
.thursday...north winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kmkx 252029
glflm 
expires:202607260315;;596934

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
329 pm cdt sat jul 25 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...

a weak low pressure trough around 29.8 inches will stall along the
wisconsin-upper michigan border this evening. it will remain over
wisconsin and lake michigan through most of monday which will 
result in increasing thunderstorm chances with severe storms 
possible. very warm, moist and unstable air flowing over the 
relatively cool waters may cause patchy dense fog over the lake 
through monday as well. 

northerly winds will develop monday night through wednesday as 
high pressure around 29.9 inches builds over the upper great lakes
and the front pushes southward. a few gale force gusts are
possible tuesday afternoon. look for southerly winds and more 
unsettled weather to resume thursday into next weekend.


lmz080-669-671-673-675-777-779-870-872-874-876-878-260315-
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-
329 pm cdt sat jul 25 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 10 to 20 kt becoming southwest 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.sunday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 3 ft. 
.sunday night...south winds 10 to 20 kt becoming southwest.
chance of showers and thunderstorms in the evening, then chance
of showers overnight. waves 1 to 3 ft. 
.monday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers in the morning, then showers likely with a
chance of thunderstorms in the afternoon. waves 1 to 3 ft. 
.monday night...west winds 10 to 20 kt becoming north 15 to
25 kt. showers likely with a chance of thunderstorms in the
evening, then chance of showers overnight. waves 2 to 4 ft
building to 4 to 6 ft occasionally to 8 ft. 
.tuesday...north winds 15 to 25 kt increasing to 30 kt in the 
afternoon. a few gale force gusts are possible. waves 6 to 9 ft 
occasionally to 12 ft building to 8 to 11 ft occasionally to 14 
ft. 
.tuesday night...north winds to 30 kt diminishing to 10 to 20 kt.
waves 8 to 11 ft occasionally to 14 ft subsiding to 5 to 8 ft 
occasionally to 10 ft. 
.wednesday...north winds 10 to 20 kt increasing to 30 kt. waves
3 to 5 ft. 
.thursday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 3 ft subsiding to 1 to 2 ft.  

$$

fzus63 kmkx 252029
glflm 
expires:202607260315;;596933

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
329 pm cdt sat jul 25 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...

a weak low pressure trough around 29.8 inches will stall along the
wisconsin-upper michigan border this evening. it will remain over
wisconsin and lake michigan through most of monday which will 
result in increasing thunderstorm chances with severe storms 
possible. very warm, moist and unstable air flowing over the 
relatively cool waters may cause patchy dense fog over the lake 
through monday as well. 

northerly winds will develop monday night through wednesday as 
high pressure around 29.9 inches builds over the upper great lakes
and the front pushes southward. a few gale force gusts are
possible tuesday afternoon. look for southerly winds and more 
unsettled weather to resume thursday into next weekend.


lmz261-362-364-366-563-565-567-868-260315-
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-
329 pm cdt sat jul 25 2026

sheboygan wi to pentwater mi north...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt, then diminishing to 10 to 15 kt late. slight chance of
showers and thunderstorms this evening. patchy fog overnight.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.sunday...southwest winds 5 to 10 kt becoming south late in the
morning, then becoming southwest 10 to 20 kt early in the
afternoon. patchy fog. waves 1 to 3 ft. 
.sunday night...south winds 10 to 20 kt becoming southwest.
patchy dense fog in the evening. chance of showers. waves 1 to
3 ft. 
.monday...southwest winds 10 to 20 kt becoming south. chance of
showers in the morning, then showers likely in the afternoon.
waves 1 to 3 ft. 
.monday night...north winds 10 to 20 kt increasing to 15 to
25 kt. chance of showers. waves 2 to 4 ft building to 3 to 5 ft. 
.tuesday...north winds 15 to 25 kt increasing to 30 kt in the 
afternoon. a few gale force gusts are possible. waves 5 to 8 ft 
occasionally to 10 ft.
.tuesday night...north winds to 30 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.wednesday...north winds 10 to 20 kt increasing to 30 kt. waves
2 to 4 ft. 
.thursday...east winds 10 to 15 kt veering to southwest 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmqt 252001
glfls 
expires:202607260800;;595372

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jul 25 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... 

troughing around 29.8 inches persists over lake superior through 
sunday morning, deepening to 29.8 inches by sunday night. a 29.6 to 
29.7 inch clipper low moves into the upper great lakes or upper 
midwest by monday before departing east towards the st. lawrence 
seaway on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz162-260800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt sat jul 25 2026 /301 pm cdt sat jul 25 2026/

.late this afternoon...southwest winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots diminishing to less than
10 knots after midnight, then veering north late. waves calm to
2 feet. 
.sunday...east winds 5 to 15 knots backing northeast late. patchy
fog through early afternoon. a slight chance of showers and
thunderstorms through early afternoon. waves calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. a chance of
showers and a slight chance of thunderstorms. waves calm to
2 feet. 
.monday...northeast winds 5 to 15 knots. a chance of showers and
a slight chance of thunderstorms. waves calm to 2 feet. 
.monday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.tuesday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots diminishing to
less than 10 knots after midnight. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. waves calm to 2 feet.
.thursday...east winds 5 to 15 knots veering west. a chance of
showers. waves calm to 2 feet. 

$$

fzus63 kmqt 252001
glfls 
expires:202607260800;;595373

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jul 25 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... 

troughing around 29.8 inches persists over lake superior through 
sunday morning, deepening to 29.8 inches by sunday night. a 29.6 to 
29.7 inch clipper low moves into the upper great lakes or upper 
midwest by monday before departing east towards the st. lawrence 
seaway on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz263-260800-
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 sat jul 25 2026

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

$$

fzus63 kmqt 252001
glfls 
expires:202607260800;;595374

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jul 25 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... 

troughing around 29.8 inches persists over lake superior through 
sunday morning, deepening to 29.8 inches by sunday night. a 29.6 to 
29.7 inch clipper low moves into the upper great lakes or upper 
midwest by monday before departing east towards the st. lawrence 
seaway on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz264-260800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt sat jul 25 2026

.late this afternoon...southwest winds 5 to 15 knots. patchy fog.
waves 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots diminishing to less than
10 knots after midnight, then backing south late. patchy fog
through midnight, then areas of dense fog after midnight. waves
subsiding to calm to 2 feet. 
.sunday...east winds less than 10 knots becoming southeast 5 to
15 knots in the afternoon, then backing northeast late. patchy
fog through early afternoon. a slight chance of showers. a slight
chance of thunderstorms by mid afternoon. waves calm to 2 feet. 
.sunday night...northeast winds less than 10 knots increasing to
5 to 15 knots late. a slight chance of showers after midnight.
waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots. a chance of showers and
a slight chance of thunderstorms. waves calm to 2 feet. 
.monday night...north winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots diminishing to less than
10 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...north winds less than 10 knots veering east
after midnight. waves calm to 2 feet. 
.wednesday...southeast winds less than 10 knots becoming south
5 to 15 knots. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots veering southwest. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 252001
glfls 
expires:202607260800;;595375

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jul 25 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... 

troughing around 29.8 inches persists over lake superior through 
sunday morning, deepening to 29.8 inches by sunday night. a 29.6 to 
29.7 inch clipper low moves into the upper great lakes or upper 
midwest by monday before departing east towards the st. lawrence 
seaway on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz265-260800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt sat jul 25 2026

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

$$

fzus63 kmqt 252001
glfls 
expires:202607260800;;595376

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jul 25 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... 

troughing around 29.8 inches persists over lake superior through 
sunday morning, deepening to 29.8 inches by sunday night. a 29.6 to 
29.7 inch clipper low moves into the upper great lakes or upper 
midwest by monday before departing east towards the st. lawrence 
seaway on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz266-260800-
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 sat jul 25 2026

.late this afternoon...southwest winds 5 to 15 knots. patchy fog.
a slight chance of showers and thunderstorms. waves 1 to 3 feet. 
.tonight...south winds 5 to 15 knots. a slight chance of showers
through midnight. patchy fog through midnight, then areas of
dense fog after midnight. waves subsiding to calm to 2 feet. 
.sunday...south winds 5 to 15 knots backing southeast in the
afternoon. areas of dense fog through early afternoon. a chance
of showers and a slight chance of thunderstorms by mid afternoon.
waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots backing northeast after
midnight. a slight chance of thunderstorms through midnight. a
slight chance of showers. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a chance of showers. a chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots. waves building to
1 to 3 feet. 
.tuesday...north winds 5 to 15 knots backing northwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.tuesday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots veering south. waves calm
to 2 feet. 
.thursday...southeast winds 5 to 15 knots veering south. waves
calm to 2 feet. 

$$

fzus63 kmqt 252001
glfls 
expires:202607260800;;595377

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat jul 25 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... 

troughing around 29.8 inches persists over lake superior through 
sunday morning, deepening to 29.8 inches by sunday night. a 29.6 to 
29.7 inch clipper low moves into the upper great lakes or upper 
midwest by monday before departing east towards the st. lawrence 
seaway on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz267-260800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt sat jul 25 2026

.late this afternoon...southwest winds 5 to 15 knots. patchy fog.
a chance of showers. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots becoming southeast less than
10 knots late. a slight chance of showers through midnight.
patchy fog through midnight, then areas of dense fog after
midnight. waves calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots. areas of dense fog
through early afternoon. a chance of showers and a slight chance
of thunderstorms by mid afternoon. waves calm to 2 feet. 
.sunday night...southeast winds 5 to 15 knots backing east late.
a chance of showers and a slight chance of thunderstorms through
midnight. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a chance of showers. a slight chance
of thunderstorms by mid afternoon. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots. a chance of showers
through midnight. waves building to 1 to 3 feet. 
.tuesday...north winds 10 to 20 knots backing northwest by mid
afternoon. waves 1 to 3 feet. 
.tuesday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...north winds 5 to 15 knots backing northwest. waves
calm to 2 feet. 
.thursday...east winds 5 to 15 knots veering south. waves calm to
2 feet. 

$$