fzus61 kbuf 261402
glflo 
expires:202606262100;;938775

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri jun 26 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a weak 29.9 inch low over the niagara peninsula will 
move to southern quebec today before passing across the canadian 
maritimes saturday. a 30.1 inch high will then build across the 
upper great lakes saturday, the lower great lakes sunday, and then 
southern quebec to new england by tuesday.


loz062-262100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt fri jun 26 2026

.rest of today...west winds 5 to 10 knots. patchy fog late this
morning. waves 1 foot or less. 
.tonight...west winds 5 to 10 knots becoming light and variable.
waves 1 foot or less. 
.saturday...light and variable winds becoming northeast 5 to
10 knots. waves 1 foot or less. 
.saturday night...east winds less than 10 knots. waves 1 foot or
less. 
.sunday...light and variable winds. waves 1 foot or less. 
.monday...east winds 10 knots or less becoming south. waves
1 foot or less. 
.tuesday...southwest winds 5 to 15 knots. a chance of showers
during the day, then a chance of showers and thunderstorms
tuesday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 261402
glflo 
expires:202606262100;;938776

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri jun 26 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a weak 29.9 inch low over the niagara peninsula will 
move to southern quebec today before passing across the canadian 
maritimes saturday. a 30.1 inch high will then build across the 
upper great lakes saturday, the lower great lakes sunday, and then 
southern quebec to new england by tuesday.


loz063>065-262100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt fri jun 26 2026

.rest of today...west winds 5 to 10 knots. waves 2 feet or less. 
.tonight...west winds 5 to 10 knots becoming light and variable.
waves 1 foot or less. 
.saturday...light and variable winds. waves 1 foot or less. 
.saturday night...north winds less than 10 knots becoming
northwest. waves 1 foot or less. 
.sunday...northwest winds less than 10 knots. waves 1 foot or
less. 
.monday...light and variable winds becoming south 5 to 10 knots.
waves 1 foot or less. 
.tuesday...south winds 5 to 10 knots becoming southwest. a chance
of showers and thunderstorms. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 261340
glfle 
expires:202606262015;;938193

open lake forecast for lake erie
national weather service cleveland oh
940 am edt fri jun 26 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 30.10 inches has stretched over the lake. a weak
trough averaging 29.90 inches will pass south of the lake tonight
into saturday. high pressure 30.10 inches will return from the 
north starting saturday night and remain over the eastern great 
lakes through monday. a warm front will cross the lake on monday
night into tuesday.


lez162>164-262015-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
940 am edt fri jun 26 2026

.this afternoon...north winds less than 10 knots. waves 1 foot or
less. 
.tonight...east winds 10 knots or less increasing to 10 to
15 knots. a chance of showers. waves 2 feet or less. 
.saturday...northeast winds 10 to 15 knots becoming east. a
chance of showers in the morning. waves 1 to 3 feet. 
.saturday night...east winds 5 to 10 knots becoming northeast.
waves 2 feet or less. 
.sunday...northeast winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.monday...southeast winds 5 to 10 knots becoming south. waves
1 foot or less. 
.tuesday...southwest winds 5 to 10 knots. waves 1 foot or less. 

$$

fzus61 kcle 261340
glfle 
expires:202606262015;;938194

open lake forecast for lake erie
national weather service cleveland oh
940 am edt fri jun 26 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 30.10 inches has stretched over the lake. a weak
trough averaging 29.90 inches will pass south of the lake tonight
into saturday. high pressure 30.10 inches will return from the 
north starting saturday night and remain over the eastern great 
lakes through monday. a warm front will cross the lake on monday
night into tuesday.


lez165>168-262015-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
940 am edt fri jun 26 2026

.this afternoon...northwest winds less than 10 knots. waves 1 foot
or less. 
.tonight...southeast winds 10 knots or less becoming east. a
slight chance of showers. a chance of showers late. waves 2 feet
or less. 
.saturday...northeast winds 5 to 15 knots. a chance of showers in
the morning. waves 1 to 3 feet. 
.saturday night...northeast winds 5 to 10 knots. waves 1 to
2 feet. 
.sunday...northeast winds 10 knots or less becoming east. waves
1 foot or less. 
.monday...southeast winds 10 knots or less becoming south. waves
1 foot or less. 
.tuesday...southwest winds 5 to 15 knots. waves 2 feet or less. 

$$

fzus61 kcle 261340
glfle 
expires:202606262015;;938195

open lake forecast for lake erie
national weather service cleveland oh
940 am edt fri jun 26 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 30.10 inches has stretched over the lake. a weak
trough averaging 29.90 inches will pass south of the lake tonight
into saturday. high pressure 30.10 inches will return from the 
north starting saturday night and remain over the eastern great 
lakes through monday. a warm front will cross the lake on monday
night into tuesday.


lez061-169-262015-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
940 am edt fri jun 26 2026

.this afternoon...west winds 5 to 10 knots. waves around 1 foot. 
.tonight...southwest winds 10 knots or less becoming east. a
slight chance of showers late. waves 1 foot or less. 
.saturday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...northeast winds 10 knots or less. waves 1 foot
or less. 
.sunday...northeast winds 10 knots or less becoming east. waves
1 foot or less. 
.monday...east winds 10 knots or less becoming south. waves
1 foot or less. 
.tuesday...southwest winds 5 to 10 knots. a chance of showers
tuesday night. waves 1 foot or less. 

$$

fzus63 kdtx 261342
glfsc 
expires:202606262145;;938217

lake st clair forecast
national weather service detroit/pontiac mi
942 am edt fri jun 26 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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend for most of the
area. the caveat to this will be a low, 29.60 inches, that tracks
through the ohio valley tonight into saturday, freshening the 
east/northeast flow a bit more on lakes st clair and erie.


lcz460-262145-
lake st clair-
942 am edt fri jun 26 2026

.rest of today...north winds 5 to 10 knots late in the morning
becoming light and variable. mostly cloudy. waves 2 feet or less.
.tonight...northeast winds 5 to 10 knots. partly cloudy. waves 2
feet or less.
.saturday...northeast winds 10 to 15 knots diminishing to 5 to 10
knots in the late morning and afternoon. mostly sunny. waves 2 feet
or less.
.saturday night...northeast winds 5 to 10 knots. mostly clear. waves
2 feet or less.
.sunday...northeast winds 5 to 10 knots veering to the southeast in
the afternoon and evening. mostly clear. waves 2 feet or less.
.monday...south winds 10 to 15 knots. mostly clear. waves 2 feet or
less.
.tuesday...southwest winds 10 to 15 knots. mostly clear. waves 2
feet or less.

$$

fzus63 kdtx 261341
glflh 
expires:202606262145;;938202

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 am edt fri jun 26 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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend for most of the
area.


lhz462>464-262145-
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-
941 am edt fri jun 26 2026

.rest of today...north winds 5 to 10 knots. waves 2 feet or less.
.tonight...light and variable winds. waves 2 feet or less. 
.saturday...north winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...north winds 5 to 10 knots  becoming light and
variable. waves 2 feet or less. 
.sunday...light and variable winds becoming north 5 to 10 knots
late in the afternoon...then veering to the east late in the
evening. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots increasing to 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet by midnight. 
.tuesday...southwest winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and early
afternoon...then building to 2 to 4 feet . 


$$

fzus63 kdtx 261341
glflh 
expires:202606262145;;938201

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 am edt fri jun 26 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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend for most of the
area.


lhz362-363-262145-
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-
941 am edt fri jun 26 2026

.rest of today...north winds 5 to 10 knots in the late morning
and early afternoon becoming light and variable. waves 2 feet or
less. 
.tonight...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 
.saturday night...light and variable winds. waves 2 feet or less.
.sunday...light and variable winds becoming northeast 5 to
10 knots late in the afternoon...then veering to the east late in
the evening. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday...south winds 10 to 15 knots becoming west 5 to 10 knots
by midnight. a chance of showers by midnight. waves 3 to 5 feet. 


$$

fzus63 kdtx 261341
glflh 
expires:202606262145;;938200

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 am edt fri jun 26 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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend for most of the
area.


lhz361-262145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
941 am edt fri jun 26 2026

.rest of today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 
.saturday night...light and variable winds. waves 2 feet or less.
.sunday...light and variable winds becoming east 10 to 15 knots.
waves 2 feet or less building to 2 to 4 feet late in the
afternoon. 
.monday...southeast winds 10 to 15 knots increasing to 15 to
20 knots until early evening...then decreasing to 10 to 15 knots
by midnight. waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday...south winds 10 to 15 knots becoming east 5 to 10 knots
early in the evening...then veering to the southwest by midnight.
a chance of showers . waves 2 to 4 feet subsiding to 1 to 3 feet
. 


$$

fzus63 kmkx 261341
glflm 
expires:202606262115;;938214

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
841 am cdt fri jun 26 2026

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

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

.synopsis...
high pressure around 30.1 inches over ontario and the western 
great lakes will dominate today through saturday with light north
to northeast winds likely. sunday, low pressure will deepen to 
around 29.3 inches over the central plains, bringing breezy 
southeasterly winds to the lake. winds then turn southerly and 
strengthen into monday (gusting up to 30 kt) as low pressure 
exits into the canadian prairies. gusty southerly winds may 
linger into most of next week.


lmz261-362-364-366-563-565-567-868-262115-
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-
841 am cdt fri jun 26 2026

sheboygan wi to pentwater mi north...

.rest of today...northeast winds 5 to 10 kt becoming north early
this afternoon, then becoming northwest 10 to 20 kt late. waves
1 to 2 ft. 
.tonight...north winds 10 to 15 kt becoming east. waves 1 to
2 ft. 
.saturday...northeast winds 5 to 10 kt becoming north 10 to 20 kt
in the afternoon. waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 15 kt becoming east.
waves 1 to 2 ft. 
.sunday...southeast winds 10 to 20 kt becoming east. waves 2 to
4 ft. 
.sunday night...southeast winds 10 to 20 kt increasing to 15 to
25 kt. chance of showers and thunderstorms. waves 3 to 5 ft
building to 4 to 6 ft occasionally to 8 ft. 
.monday...south winds 15 to 25 kt increasing to 30 kt. waves 4 to
7 ft occasionally to 9 ft building to 5 to 8 ft occasionally to
10 ft. 
.tuesday...southwest winds to 30 kt. waves 4 to 6 ft occasionally
to 8 ft.  

$$

fzus63 kmkx 261341
glflm 
expires:202606262115;;938215

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
841 am cdt fri jun 26 2026

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

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

.synopsis...
high pressure around 30.1 inches over ontario and the western 
great lakes will dominate today through saturday with light north
to northeast winds likely. sunday, low pressure will deepen to 
around 29.3 inches over the central plains, bringing breezy 
southeasterly winds to the lake. winds then turn southerly and 
strengthen into monday (gusting up to 30 kt) as low pressure 
exits into the canadian prairies. gusty southerly winds may 
linger into most of next week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-262115-
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-
841 am cdt fri jun 26 2026

sheboygan wi to pentwater mi south...

.rest of today...northeast winds 10 to 15 kt becoming north.
waves 1 to 2 ft. 
.tonight...northeast winds 10 to 15 kt becoming east. waves 1 to
2 ft. 
.saturday...east winds 10 to 15 kt becoming north 10 to 20 kt.
waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 15 kt becoming east.
waves 1 to 2 ft. 
.sunday...southeast winds 10 to 20 kt. waves 2 to 4 ft. 
.sunday night...southeast winds 10 to 20 kt increasing to 15 to
25 kt. waves 3 to 5 ft building to 4 to 6 ft occasionally to
8 ft. 
.monday...south winds 15 to 25 kt increasing to 30 kt. waves 5 to
8 ft occasionally to 10 ft. 
.tuesday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmqt 261401
glfls 
expires:202606262000;;938680

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jun 26 2026

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

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

.synopsis... 

a 30.1 inch high remains over lake superior today into sunday 
morning. meanwhile, broad low pressure of at least 29.5 inches 
deepens in the high plains today and saturday. by sunday afternoon, 
the high over lake superior retreats eastward but keeps 30.0 inch 
ridging over the upper great lakes while the low pressure remains 
over the plains. the high pressure then shifts over to lake ontario 
by monday morning as the now 29.4 inch low pressure consolidates 
over south dakota. through monday and tuesday, this low slides north 
to lake winnipeg while the 30.1 inch high shifts off the east coast. 
this progressively strengthens troughing over lake superior to 29.8 
inches by monday evening, remaining that way until tuesday morning. 
a shortwave low lifting from colorado then deepens the troughing 
over lake superior to 29.7 inches by tuesday evening as it heads 
toward northern ontario. with a 30.1 inch high developing over the 
southeastern u.s. on wednesday, we could see 29.9 inch ridging 
return over lake superior late in the day.  




lsz264-262000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt fri jun 26 2026

.rest of today...west winds less than 10 knots backing southwest
in the afternoon. waves calm to 2 feet. 
.tonight...east winds less than 10 knots veering southeast after
midnight. waves calm to 2 feet. 
.saturday...east winds less than 10 knots increasing to 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...east winds 5 to 15 knots increasing to 15 to 25 knots
by mid afternoon. a slight chance of showers by mid afternoon.
waves building to 2 to 4 feet. 
.sunday night...southeast winds 15 to 25 knots. a chance of
showers. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 
.monday...southeast winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.tuesday...southwest winds 5 to 15 knots backing south. a chance
of showers. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 261401
glfls 
expires:202606262000;;938681

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jun 26 2026

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

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

.synopsis... 

a 30.1 inch high remains over lake superior today into sunday 
morning. meanwhile, broad low pressure of at least 29.5 inches 
deepens in the high plains today and saturday. by sunday afternoon, 
the high over lake superior retreats eastward but keeps 30.0 inch 
ridging over the upper great lakes while the low pressure remains 
over the plains. the high pressure then shifts over to lake ontario 
by monday morning as the now 29.4 inch low pressure consolidates 
over south dakota. through monday and tuesday, this low slides north 
to lake winnipeg while the 30.1 inch high shifts off the east coast. 
this progressively strengthens troughing over lake superior to 29.8 
inches by monday evening, remaining that way until tuesday morning. 
a shortwave low lifting from colorado then deepens the troughing 
over lake superior to 29.7 inches by tuesday evening as it heads 
toward northern ontario. with a 30.1 inch high developing over the 
southeastern u.s. on wednesday, we could see 29.9 inch ridging 
return over lake superior late in the day.  




lsz265-262000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt fri jun 26 2026

.rest of today...west winds 5 to 15 knots backing east in the
afternoon. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering southeast after
midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...east winds 15 to 25 knots increasing to 20 to 30 knots
by mid afternoon. a slight chance of showers. waves building to
3 to 5 feet occasionally to 7 feet. 
.sunday night...southeast winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of showers. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.monday...southeast winds 20 to 30 knots becoming south 15 to
25 knots. a chance of showers and thunderstorms. waves building
to 3 to 6 feet occasionally to 8 feet, then subsiding to 1 to
3 feet. 
.tuesday...southwest winds 10 to 20 knots. a chance of showers.
waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 261401
glfls 
expires:202606262000;;938678

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jun 26 2026

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

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

.synopsis... 

a 30.1 inch high remains over lake superior today into sunday 
morning. meanwhile, broad low pressure of at least 29.5 inches 
deepens in the high plains today and saturday. by sunday afternoon, 
the high over lake superior retreats eastward but keeps 30.0 inch 
ridging over the upper great lakes while the low pressure remains 
over the plains. the high pressure then shifts over to lake ontario 
by monday morning as the now 29.4 inch low pressure consolidates 
over south dakota. through monday and tuesday, this low slides north 
to lake winnipeg while the 30.1 inch high shifts off the east coast. 
this progressively strengthens troughing over lake superior to 29.8 
inches by monday evening, remaining that way until tuesday morning. 
a shortwave low lifting from colorado then deepens the troughing 
over lake superior to 29.7 inches by tuesday evening as it heads 
toward northern ontario. with a 30.1 inch high developing over the 
southeastern u.s. on wednesday, we could see 29.9 inch ridging 
return over lake superior late in the day.  




lsz162-262000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt fri jun 26 2026 /900 am cdt fri jun 26 2026/

.rest of today...north winds less than 10 knots increasing to
5 to 15 knots in the afternoon, then veering northeast late.
waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots backing northeast after
midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots becoming northeast 10 to
20 knots in the afternoon. waves building to 1 to 3 feet. 
.saturday night...northeast winds 10 to 20 knots veering east
after midnight. a slight chance of showers after midnight. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.sunday...east winds 10 to 20 knots becoming northeast 15 to
25 knots by mid afternoon. a chance of showers. a slight chance
of thunderstorms by mid afternoon. waves building to 2 to 4 feet.
.sunday night...east winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. a chance of showers through midnight. a
chance of thunderstorms. showers likely after midnight. waves
2 to 4 feet. 
.monday...northeast winds 10 to 20 knots increasing to 15 to
25 knots. a chance of showers and thunderstorms. waves subsiding
to 1 to 3 feet, then building to 2 to 4 feet. 
.tuesday...southwest winds 10 to 20 knots becoming west 5 to
15 knots. a chance of showers and thunderstorms. waves subsiding
to calm to 2 feet. 

$$

fzus63 kmqt 261401
glfls 
expires:202606262000;;938683

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jun 26 2026

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

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

.synopsis... 

a 30.1 inch high remains over lake superior today into sunday 
morning. meanwhile, broad low pressure of at least 29.5 inches 
deepens in the high plains today and saturday. by sunday afternoon, 
the high over lake superior retreats eastward but keeps 30.0 inch 
ridging over the upper great lakes while the low pressure remains 
over the plains. the high pressure then shifts over to lake ontario 
by monday morning as the now 29.4 inch low pressure consolidates 
over south dakota. through monday and tuesday, this low slides north 
to lake winnipeg while the 30.1 inch high shifts off the east coast. 
this progressively strengthens troughing over lake superior to 29.8 
inches by monday evening, remaining that way until tuesday morning. 
a shortwave low lifting from colorado then deepens the troughing 
over lake superior to 29.7 inches by tuesday evening as it heads 
toward northern ontario. with a 30.1 inch high developing over the 
southeastern u.s. on wednesday, we could see 29.9 inch ridging 
return over lake superior late in the day.  




lsz267-262000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt fri jun 26 2026

.rest of today...north winds 5 to 15 knots backing west in the
afternoon, then veering northwest late. patchy fog. waves calm to
2 feet. 
.tonight...north winds 5 to 15 knots backing west after midnight,
then veering northwest late. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots backing northwest in the
afternoon, then veering north late. waves calm to 2 feet. 
.saturday night...southeast winds less than 10 knots increasing
to 5 to 15 knots after midnight. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves calm to 2 feet. 
.sunday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of showers. waves
building to 2 to 4 feet. 
.monday...southeast winds 15 to 25 knots. a chance of showers.
waves building to 3 to 6 feet occasionally to 8 feet, then
subsiding to 2 to 4 feet. 
.tuesday...south winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers and thunderstorms. waves subsiding
to calm to 2 feet. 

$$

fzus63 kmqt 261401
glfls 
expires:202606262000;;938682

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jun 26 2026

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

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

.synopsis... 

a 30.1 inch high remains over lake superior today into sunday 
morning. meanwhile, broad low pressure of at least 29.5 inches 
deepens in the high plains today and saturday. by sunday afternoon, 
the high over lake superior retreats eastward but keeps 30.0 inch 
ridging over the upper great lakes while the low pressure remains 
over the plains. the high pressure then shifts over to lake ontario 
by monday morning as the now 29.4 inch low pressure consolidates 
over south dakota. through monday and tuesday, this low slides north 
to lake winnipeg while the 30.1 inch high shifts off the east coast. 
this progressively strengthens troughing over lake superior to 29.8 
inches by monday evening, remaining that way until tuesday morning. 
a shortwave low lifting from colorado then deepens the troughing 
over lake superior to 29.7 inches by tuesday evening as it heads 
toward northern ontario. with a 30.1 inch high developing over the 
southeastern u.s. on wednesday, we could see 29.9 inch ridging 
return over lake superior late in the day.  




lsz266-262000-
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-
1000 am edt fri jun 26 2026

.rest of today...west winds 5 to 15 knots backing southwest in
the afternoon, then becoming north less than 10 knots late.
patchy fog. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering southeast after
midnight, then backing north late. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots diminishing to less than
10 knots late. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.sunday...southeast winds 10 to 20 knots becoming east 15 to
25 knots by mid afternoon. a slight chance of showers by mid
afternoon. waves building to 2 to 4 feet. 
.sunday night...southeast winds 15 to 25 knots. a chance of
showers. waves building to 3 to 5 feet occasionally to 7 feet. 
.monday...southeast winds 20 to 30 knots becoming south 15 to
25 knots. a chance of showers and thunderstorms. waves building
to 3 to 6 feet occasionally to 8 feet. 
.tuesday...southwest winds 10 to 20 knots backing south. a chance
of showers and thunderstorms. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 261401
glfls 
expires:202606262000;;938679

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri jun 26 2026

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

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

.synopsis... 

a 30.1 inch high remains over lake superior today into sunday 
morning. meanwhile, broad low pressure of at least 29.5 inches 
deepens in the high plains today and saturday. by sunday afternoon, 
the high over lake superior retreats eastward but keeps 30.0 inch 
ridging over the upper great lakes while the low pressure remains 
over the plains. the high pressure then shifts over to lake ontario 
by monday morning as the now 29.4 inch low pressure consolidates 
over south dakota. through monday and tuesday, this low slides north 
to lake winnipeg while the 30.1 inch high shifts off the east coast. 
this progressively strengthens troughing over lake superior to 29.8 
inches by monday evening, remaining that way until tuesday morning. 
a shortwave low lifting from colorado then deepens the troughing 
over lake superior to 29.7 inches by tuesday evening as it heads 
toward northern ontario. with a 30.1 inch high developing over the 
southeastern u.s. on wednesday, we could see 29.9 inch ridging 
return over lake superior late in the day.  




lsz263-262000-
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-
1000 am edt fri jun 26 2026

.rest of today...southwest winds less than 10 knots increasing to
5 to 15 knots in the afternoon, then backing northeast late.
waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots diminishing to less than
10 knots late. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots backing northeast in the
afternoon, then increasing to 10 to 20 knots late. waves calm to
2 feet. 
.saturday night...east winds 10 to 20 knots becoming southeast
5 to 15 knots after midnight. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.sunday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a chance of showers. waves building to 2 to
4 feet. 
.sunday night...east winds 15 to 25 knots becoming southeast
10 to 20 knots after midnight. a chance of showers and
thunderstorms. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.monday...east winds 10 to 20 knots veering southwest. a chance
of showers. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 
.tuesday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers and thunderstorms. waves subsiding
to calm to 2 feet. 

$$