fzus61 kbuf 242003
glflo 
expires:202607250300;;536925

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt fri jul 24 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.2 inch high over the lake this morning will 
drift east of the lake today, and linger over new england through 
saturday before weakening and drifting off the east coast sunday. a 
29.5 inch area of low pressure will develop over the western great 
lakes sunday night and move north of the lake monday and tuesday, 
with a cold front slowly easing across the lake tuesday.


loz062-250300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt fri jul 24 2026

.tonight...east winds 10 knots or less becoming southeast. waves
1 foot or less. 
.saturday...south winds 10 knots or less becoming east. waves
1 foot or less. 
.saturday night...east winds less than 10 knots becoming
southwest. waves 1 foot or less. 
.sunday...southwest winds 10 knots or less. a chance of showers
and thunderstorms in the afternoon. waves 1 foot or less. 
.sunday night...southwest winds 10 knots or less. a chance of
showers. waves 1 foot or less. 
.monday...southwest winds 5 to 10 knots. a chance of showers and
thunderstorms during the day, then showers with a chance of
thunderstorms monday night. waves 1 foot or less. 
.tuesday...west winds 5 to 15 knots becoming north. showers with
a chance of thunderstorms. waves 1 to 2 feet. 
.wednesday...north winds 5 to 15 knots. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 242003
glflo 
expires:202607250300;;536926

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt fri jul 24 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.2 inch high over the lake this morning will 
drift east of the lake today, and linger over new england through 
saturday before weakening and drifting off the east coast sunday. a 
29.5 inch area of low pressure will develop over the western great 
lakes sunday night and move north of the lake monday and tuesday, 
with a cold front slowly easing across the lake tuesday.


loz063>065-250300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt fri jul 24 2026

.tonight...northeast winds 5 to 15 knots becoming south. waves
2 feet or less. 
.saturday...south winds 5 to 15 knots becoming east. waves 2 feet
or less. 
.saturday night...east winds 10 knots or less becoming south.
waves 1 foot or less. 
.sunday...south winds 5 to 10 knots. 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 5 to 10 knots becoming south. a chance
of showers and thunderstorms during the day, then showers with a
chance of thunderstorms monday night. waves 1 foot or less. 
.tuesday...southwest winds 5 to 15 knots becoming north. showers
with a chance of thunderstorms. waves 2 feet or less. 
.wednesday...north winds 5 to 15 knots. a chance of showers.
waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 241935
glfle 
expires:202607250215;;535910

open lake forecast for lake erie
national weather service cleveland oh
335 pm edt fri jul 24 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...
high pressure 30.20 inches continues across the region and will 
drift eastward through saturday. sunday, pressure falls to an
average of 29.90 inches as low pressure enters the great lakes 
region. a cold front moves through early tuesday.


lez162-163-250215-
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-
335 pm edt fri jul 24 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 241935
glfle 
expires:202607250215;;535911

open lake forecast for lake erie
national weather service cleveland oh
335 pm edt fri jul 24 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...
high pressure 30.20 inches continues across the region and will 
drift eastward through saturday. sunday, pressure falls to an
average of 29.90 inches as low pressure enters the great lakes 
region. a cold front moves through early tuesday.


lez164>167-250215-
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-
335 pm edt fri jul 24 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 241935
glfle 
expires:202607250215;;535912

open lake forecast for lake erie
national weather service cleveland oh
335 pm edt fri jul 24 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...
high pressure 30.20 inches continues across the region and will 
drift eastward through saturday. sunday, pressure falls to an
average of 29.90 inches as low pressure enters the great lakes 
region. a cold front moves through early tuesday.


lez061-168-169-250215-
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-
335 pm edt fri jul 24 2026

.tonight...northeast winds 5 to 15 knots becoming south. waves
2 feet or less. 
.saturday...south winds 10 knots or less becoming west. a slight
chance of showers late in the morning. waves 1 foot or less. 
.saturday night...west winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.sunday...southwest winds 5 to 10 knots becoming west. a chance
of showers. waves 1 foot or less. 
.sunday night...southwest winds 5 to 10 knots. a chance of
showers in the evening, then showers likely with a chance of
thunderstorms overnight. waves around 1 foot. 
.monday...southwest winds 5 to 15 knots. a chance of showers and
thunderstorms during the day, then showers with a chance of
thunderstorms monday night. waves 1 to 3 feet building to 2 to
4 feet. 
.tuesday...west winds 10 to 15 knots becoming north. a chance of
showers and thunderstorms during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.wednesday...north winds 5 to 15 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 241940
glflh 
expires:202607250345;;536123

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 pm edt fri jul 24 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.10 inches, drifts into the mid-
atlantic today and saturday. winds organize out of the southwest
saturday ahead of increasing thunderstorm chances late saturday
night into early next week.


lhz361-250345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
340 pm edt fri jul 24 2026

.tonight...north winds 5 to 10 knots early in the evening
becoming light and variable...then becoming south 5 to 10 knots
after midnight. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.saturday...south winds 5 to 10 knots backing to the southeast
late in the afternoon. waves 1 to 3 feet. 
.saturday night...light and variable winds. waves 1 to 3 feet. 
.sunday...light and variable winds. waves 2 feet or less. 
.sunday night...southeast winds 5 to 10 knots veering to the
southwest after midnight. showers likely. waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots backing to the southeast
late in the afternoon...then veering to the northwest late in the
evening. showers likely. a chance of thunderstorms. a chance of
showers late in the afternoon. waves 2 feet or less. 
.tuesday...north winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then becoming northwest
10 to 15 knots early in the evening decreasing to 5 to 10 knots
by midnight. waves 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots backing to the northwest
by midnight. waves 2 feet or less. 


$$

fzus63 kdtx 241940
glflh 
expires:202607250345;;536124

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 pm edt fri jul 24 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.10 inches, drifts into the mid-
atlantic today and saturday. winds organize out of the southwest
saturday ahead of increasing thunderstorm chances late saturday
night into early next week.


lhz362-363-250345-
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-
340 pm edt fri jul 24 2026

.tonight...southeast winds 10 to 15 knots becoming south 5 to
10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. 
.saturday...south winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. waves 2 feet or less building to
2 to 4 feet late in the afternoon. 
.saturday night...south winds 10 to 15 knots becoming light and
variable. 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...southeast winds 5 to 10 knots veering to the
south in the late evening and overnight. a chance of showers.
waves 2 feet or less. 
.monday...south winds 5 to 10 knots backing to the east late in
the afternoon...then backing to the east 5 to 10 knots late in
the evening. a chance of thunderstorms. rain showers likely late
in the afternoon...then a chance of showers late in the evening.
waves 2 feet or less. 
.tuesday...north winds 10 to 15 knots. a chance of showers early
in the morning. waves 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 241940
glfsc 
expires:202607250345;;536127

lake st clair forecast
national weather service detroit/pontiac mi
340 pm edt fri jul 24 2026

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

.synopsis...high pressure, 30.10 inches, drifts into the mid-
atlantic today and saturday. winds organize out of the southwest
saturday ahead of increasing thunderstorm chances late saturday
night into early next week.


lcz460-250345-
lake st clair-
340 pm edt fri jul 24 2026

.tonight...southeast winds 5 to 10 knots this evening becoming light
and variable. mostly clear. waves 2 feet or less.
.saturday...light and variable winds becoming southeast 5 to 10
knots in the afternoon. mostly sunny. waves 2 feet or less.
.saturday night...south winds 5 to 10 knots veering to the southwest
after midnight. mostly clear. a chance of. waves 2 feet or less.
.sunday...west winds 5 to 10 knots backing to the southwest early in
the afternoon. mostly sunny. 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...southwest winds 5 to 10 knots. partly cloudy. light
showers likely and a chance of thunderstorms ...then a chance of
light showers after midnight. waves 2 feet or less.
.monday...southwest winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon and evening. partly sunny becoming mostly sunny in
the afternoon becoming partly cloudy. a chance of light showers. a
chance of thunderstorms in the afternoon and evening. showers likely
in the evening. waves 2 feet or less.
.tuesday...north winds 10 to 15 knots. partly cloudy. showers likely
and a chance of thunderstorms. waves 2 feet or less.
.wednesday...north winds 10 to 15 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 241940
glflh 
expires:202607250345;;536125

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 pm edt fri jul 24 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.10 inches, drifts into the mid-
atlantic today and saturday. winds organize out of the southwest
saturday ahead of increasing thunderstorm chances late saturday
night into early next week.


lhz462>464-250345-
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-
340 pm edt fri jul 24 2026

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


$$

fzus63 kmkx 242004
glflm 
expires:202607250315;;537114

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
304 pm cdt fri jul 24 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...

gusty southerly winds are expected across all of lake michigan
through saturday as a low pressure averaging 29.5 inches 
approaches from the northern plains. gusts up to 30 knots are 
expected over the north half. a frontal boundary will stall over 
the upper great lakes, mainly over wisconsin and lake michigan, 
through most of monday. this 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 marine fog early next week. 

northerly winds are expected monday night through wednesday as 
high pressure of 29.9 inches builds over the upper great lakes. 
look for southerly winds and more unsettled weather to resume 
thursday into the next weekend.


lmz080-669-671-673-675-777-779-870-872-874-876-878-250315-
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-
304 pm cdt fri jul 24 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 15 to 25 kt diminishing to 10 to 20 kt
late this evening, then becoming southwest after midnight. waves 
2 to 4 ft. 
.saturday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 3 to 5 ft. 
.saturday night...south winds 15 to 25 kt becoming southwest
10 to 20 kt late in the evening, then diminishing to 10 to 15 kt
after midnight. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.sunday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 3 ft. 
.sunday night...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. chance of showers and thunderstorms. waves 1 to 3 ft. 
.monday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers and thunderstorms. waves 2 to 4 ft.
.monday night...northwest winds 10 to 20 kt becoming north 15 to
25 kt. waves 3 to 5 ft. 
.tuesday...north winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft. 
.wednesday...north winds 10 to 15 kt increasing to 15 to 25 kt.
waves 1 to 3 ft.  

$$

fzus63 kmkx 242004
glflm 
expires:202607250315;;537113

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
304 pm cdt fri jul 24 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...

gusty southerly winds are expected across all of lake michigan
through saturday as a low pressure averaging 29.5 inches 
approaches from the northern plains. gusts up to 30 knots are 
expected over the north half. a frontal boundary will stall over 
the upper great lakes, mainly over wisconsin and lake michigan, 
through most of monday. this 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 marine fog early next week. 

northerly winds are expected monday night through wednesday as 
high pressure of 29.9 inches builds over the upper great lakes. 
look for southerly winds and more unsettled weather to resume 
thursday into the next weekend.


lmz261-362-364-366-563-565-567-868-250315-
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-
304 pm cdt fri jul 24 2026

sheboygan wi to pentwater mi north...

.tonight...south winds to 30 kt becoming southwest 15 to 25 kt.
waves 3 to 5 ft. 
.saturday...southwest winds 15 to 25 kt becoming south to 30 kt.
slight chance of showers and thunderstorms in the morning. waves
3 to 5 ft. 
.saturday night...south winds 15 to 25 kt becoming southwest
10 to 20 kt late in the evening, then diminishing to 10 to 15 kt
after midnight becoming southwest 10 to 15 kt late. waves 3 to
5 ft subsiding to 2 to 4 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 10 to
15 kt. thunderstorms likely with a chance of showers in the
evening, then chance of showers and thunderstorms overnight.
waves 1 to 3 ft. 
.monday...west winds 10 to 20 kt veering to north 15 to 25 kt.
chance of showers and thunderstorms. waves 1 to 3 ft.
.monday night...north winds 10 to 20 kt. chance of showers. waves
1 to 3 ft. 
.tuesday...north winds 15 to 25 kt increasing to 30 kt. waves
2 to 4 ft. 
.wednesday...north winds 10 to 15 kt becoming northeast 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmqt 242001
glfls 
expires:202607250800;;536810

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jul 24 2026

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

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

.synopsis... 

29.8 inch troughing moves over lake superior tonight as a parent 
29.3 inch low tracks across hudson bay. pressure holds at around 
29.8 inches over the lake through early sunday. 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 at 29.4 
inches on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz267-250800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt fri jul 24 2026

.late this afternoon...south winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...south winds 15 to 25 knots increasing to 20 to
30 knots late. a slight chance of showers and thunderstorms after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.saturday...south winds 15 to 25 knots becoming southwest 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. a chance of showers and a slight chance of thunderstorms.
waves subsiding to calm to 2 feet. 
.saturday night...south winds 5 to 15 knots becoming southeast
less than 10 knots after midnight, then increasing to 5 to
15 knots late. a slight chance of showers through midnight. waves
calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots. a chance of showers. a
slight chance of thunderstorms by mid afternoon. waves calm to
2 feet. 
.sunday night...south winds 5 to 15 knots veering west after
midnight. a chance of showers. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a chance of showers through early
afternoon. a chance of thunderstorms. showers likely by mid
afternoon. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots. a chance of showers.
waves calm to 2 feet. 
.tuesday...northwest winds 10 to 20 knots becoming north 5 to
15 knots. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots backing west. waves calm
to 2 feet. 

$$

fzus63 kmqt 242001
glfls 
expires:202607250800;;536806

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jul 24 2026

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

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

.synopsis... 

29.8 inch troughing moves over lake superior tonight as a parent 
29.3 inch low tracks across hudson bay. pressure holds at around 
29.8 inches over the lake through early sunday. 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 at 29.4 
inches on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz263-250800-
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 fri jul 24 2026

.late this afternoon...south winds 10 to 20 knots. waves 1 to
3 feet. 
.tonight...southwest winds 20 to 30 knots. a chance of showers
and thunderstorms. waves building to 3 to 6 feet occasionally to
8 feet. 
.saturday...southwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon, then becoming southwest 5 to 15 knots
late. a slight chance of showers through early afternoon. waves
subsiding to calm to 2 feet. 
.saturday night...southwest winds 5 to 15 knots becoming south
less than 10 knots after midnight, then backing southeast late. a
slight chance of showers and thunderstorms after midnight. waves
calm to 2 feet. 
.sunday...east winds less than 10 knots becoming northeast 5 to
15 knots by mid afternoon. a chance of showers and a slight
chance of thunderstorms through early afternoon. waves calm to
2 feet. 
.sunday night...east winds 5 to 15 knots backing northeast after
midnight. a chance of showers. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots. a chance of showers and
thunderstorms. waves calm to 2 feet. 
.monday night...north winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots diminishing to less than
10 knots. waves calm to 2 feet. 
.wednesday...northeast winds less than 10 knots veering east.
waves calm to 2 feet. 

$$

fzus63 kmqt 242001
glfls 
expires:202607250800;;536807

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jul 24 2026

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

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

.synopsis... 

29.8 inch troughing moves over lake superior tonight as a parent 
29.3 inch low tracks across hudson bay. pressure holds at around 
29.8 inches over the lake through early sunday. 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 at 29.4 
inches on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz264-250800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt fri jul 24 2026

.late this afternoon...south winds 5 to 15 knots. waves 1 to
3 feet. 
.tonight...south winds 10 to 20 knots becoming southwest 15 to
25 knots after midnight. a chance of showers and thunderstorms.
waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday...southwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon, then becoming southwest 5 to 15 knots
late. a slight chance of showers and thunderstorms through early
afternoon. waves subsiding to 1 to 3 feet. 
.saturday night...southwest winds 5 to 15 knots becoming south
less than 10 knots after midnight, then backing southeast late. a
chance of showers after midnight. waves subsiding to calm to
2 feet. 
.sunday...southeast winds 5 to 15 knots backing east by mid
afternoon. a chance of showers. waves calm to 2 feet. 
.sunday night...northeast winds less than 10 knots. a chance of
showers. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots. a chance of showers and
thunderstorms. waves calm to 2 feet. 
.monday night...north winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...northeast winds less than 10 knots veering east. waves
calm to 2 feet. 
.wednesday...east winds less than 10 knots veering southeast.
waves calm to 2 feet. 

$$

fzus63 kmqt 242001
glfls 
expires:202607250800;;536808

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jul 24 2026

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

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

.synopsis... 

29.8 inch troughing moves over lake superior tonight as a parent 
29.3 inch low tracks across hudson bay. pressure holds at around 
29.8 inches over the lake through early sunday. 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 at 29.4 
inches on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz265-250800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt fri jul 24 2026

.late this afternoon...southeast winds 10 to 20 knots. waves calm
to 2 feet building to 1 to 3 feet. 
.tonight...south winds 15 to 25 knots increasing to 20 to
30 knots after midnight, then veering southwest late. a chance of
showers and a slight chance of thunderstorms after midnight.
waves building to 2 to 4 feet. 
.saturday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then becoming southeast 5 to 15 knots
late. a chance of showers and a slight chance of thunderstorms.
waves subsiding to calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
late. a slight chance of showers and thunderstorms after
midnight. waves calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. a chance of showers. a slight chance
of thunderstorms by mid afternoon. waves calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots veering north after
midnight. a chance of showers. waves calm to 2 feet. 
.monday...east winds 10 to 20 knots backing northeast by mid
afternoon. a chance of showers and thunderstorms. waves calm to
2 feet. 
.monday night...north winds 10 to 20 knots. waves calm to 2 feet.
.tuesday...north winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots veering south. waves calm
to 2 feet. 

$$

fzus63 kmqt 242001
glfls 
expires:202607250800;;536809

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jul 24 2026

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

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

.synopsis... 

29.8 inch troughing moves over lake superior tonight as a parent 
29.3 inch low tracks across hudson bay. pressure holds at around 
29.8 inches over the lake through early sunday. 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 at 29.4 
inches on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz266-250800-
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 fri jul 24 2026

.late this afternoon...south winds 15 to 25 knots. waves 1 to
3 feet building to 2 to 4 feet. 
.tonight...south winds 20 to 30 knots. a chance of showers and
thunderstorms after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.saturday...southwest winds 15 to 25 knots diminishing to 5 to
15 knots. a chance of showers and a slight chance of
thunderstorms. waves subsiding to 1 to 3 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
late. a slight chance of showers. waves subsiding to calm to
2 feet. 
.sunday...southeast winds 5 to 15 knots. a chance of showers. a
slight chance of thunderstorms by mid afternoon. waves calm to
2 feet. 
.sunday night...north winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.monday...north winds 10 to 20 knots. a chance of showers through
early afternoon. a chance of thunderstorms. showers likely by mid
afternoon. waves calm to 2 feet. 
.monday night...north winds 10 to 20 knots. a chance of showers
through midnight. waves calm to 2 feet. 
.tuesday...north winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots veering south. waves calm
to 2 feet. 

$$

fzus63 kmqt 242001
glfls 
expires:202607250800;;536805

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jul 24 2026

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

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

.synopsis... 

29.8 inch troughing moves over lake superior tonight as a parent 
29.3 inch low tracks across hudson bay. pressure holds at around 
29.8 inches over the lake through early sunday. 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 at 29.4 
inches on tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior tuesday into wednesday.




lsz162-250800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt fri jul 24 2026 /301 pm cdt fri jul 24 2026/

.late this afternoon...southwest winds 10 to 20 knots. a slight
chance of showers. waves calm to 2 feet. 
.tonight...south winds 15 to 25 knots becoming southwest 20 to
30 knots after midnight, then diminishing to 15 to 25 knots late.
a chance of showers and thunderstorms. waves building to 3 to
5 feet occasionally to 7 feet. 
.saturday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.saturday night...southwest winds 5 to 15 knots backing south
after midnight, then backing east late. a slight chance of
showers and thunderstorms after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots backing northeast by mid
afternoon. a slight chance of showers and thunderstorms. waves
calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...northeast winds 5 to 15 knots backing north after
midnight. waves calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast. waves
calm to 2 feet. 

$$