fzus61 kbuf 271401
glflo 
expires:202606272100;;995558

open lake forecast for lake ontario
national weather service buffalo ny
1001 am edt sat jun 27 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 will move east across the canadian 
maritimes throughout the day today. meanwhile, a 30.1 inch high will 
build into the upper great lakes today through early sunday before 
drifting east to quebec and new england by monday, then east of the 
new england coast by tuesday. another broad 30.1 inch high will 
build into the ohio valley and mid atlantic by wednesday.


loz063>065-272100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1001 am edt sat jun 27 2026

.this afternoon...west winds less than 10 knots becoming north.
waves 1 foot or less. 
.tonight...northeast winds less than 10 knots. waves 1 foot or
less. 
.sunday...light and variable winds. waves 1 foot or less. 
.sunday night...northwest winds less than 10 knots. waves 1 foot
or less. 
.monday...east winds 10 knots or less becoming southeast. a
chance of showers and thunderstorms monday night. 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. 
.wednesday...southwest winds 10 to 15 knots becoming west. a
chance of showers during the day. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 271401
glflo 
expires:202606272100;;995557

open lake forecast for lake ontario
national weather service buffalo ny
1001 am edt sat jun 27 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 will move east across the canadian 
maritimes throughout the day today. meanwhile, a 30.1 inch high will 
build into the upper great lakes today through early sunday before 
drifting east to quebec and new england by monday, then east of the 
new england coast by tuesday. another broad 30.1 inch high will 
build into the ohio valley and mid atlantic by wednesday.


loz062-272100-
lake ontario open waters from the niagara river to hamlin beach-
1001 am edt sat jun 27 2026

.this afternoon...north winds less than 10 knots becoming
northeast. waves 1 foot or less. 
.tonight...northeast winds less than 10 knots. waves 1 foot or
less. 
.sunday...light and variable winds becoming east 5 to 10 knots.
waves 1 foot or less. 
.sunday night...northeast winds 10 knots or less becoming east.
waves 1 foot or less. 
.monday...east winds 5 to 10 knots becoming southeast. a chance
of showers and thunderstorms monday night. waves 1 foot or less. 
.tuesday...south winds 5 to 15 knots becoming southwest. a chance
of showers and thunderstorms during the day. waves 1 to 3 feet. 
.wednesday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 271336
glfle 
expires:202606272015;;994574

open lake forecast for lake erie
national weather service cleveland oh
936 am edt sat jun 27 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a trough averaging 29.90 inches will move through the ohio valley
today. high pressure 30.10 inches will build from the north
starting tonight and settle over the eastern great lakes on
sunday. this high pressure system will move east on monday and
allow a warm front to cross the lake on monday night. a ridge
averaging 30.00 inches will remain over the lake for tuesday and
wednesday.


lez165>168-272015-
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-
936 am edt sat jun 27 2026

.this afternoon...northeast winds 5 to 15 knots. waves 2 feet or
less. 
.tonight...northeast winds 5 to 10 knots. waves 1 to 2 feet. 
.sunday...northeast winds 5 to 10 knots. waves 1 to 2 feet. 
.sunday night...northeast winds 5 to 10 knots becoming east.
waves 1 to 2 feet. 
.monday...southeast winds 5 to 15 knots becoming south. waves
2 feet or less. 
.tuesday...southwest winds 5 to 15 knots. waves 1 to 3 feet. 
.wednesday...southwest winds 5 to 15 knots becoming west. waves
1 to 3 feet. 

$$

fzus61 kcle 271336
glfle 
expires:202606272015;;994575

open lake forecast for lake erie
national weather service cleveland oh
936 am edt sat jun 27 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a trough averaging 29.90 inches will move through the ohio valley
today. high pressure 30.10 inches will build from the north
starting tonight and settle over the eastern great lakes on
sunday. this high pressure system will move east on monday and
allow a warm front to cross the lake on monday night. a ridge
averaging 30.00 inches will remain over the lake for tuesday and
wednesday.


lez061-169-272015-
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-
936 am edt sat jun 27 2026

.this afternoon...northeast winds 5 to 10 knots. waves 1 foot or
less. 
.tonight...northeast winds 5 to 10 knots. waves 1 foot or less. 
.sunday...northeast winds 5 to 10 knots. waves 1 foot or less. 
.sunday night...northeast winds 10 knots or less becoming east.
waves 1 foot or less. 
.monday...east winds 10 knots or less becoming south. waves
2 feet or less. 
.tuesday...southwest winds 5 to 10 knots. waves 1 to 2 feet. 
.wednesday...southwest winds 5 to 15 knots. waves 1 to 3 feet. 

$$

fzus61 kcle 271336
glfle 
expires:202606272015;;994573

open lake forecast for lake erie
national weather service cleveland oh
936 am edt sat jun 27 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a trough averaging 29.90 inches will move through the ohio valley
today. high pressure 30.10 inches will build from the north
starting tonight and settle over the eastern great lakes on
sunday. this high pressure system will move east on monday and
allow a warm front to cross the lake on monday night. a ridge
averaging 30.00 inches will remain over the lake for tuesday and
wednesday.


lez162>164-272015-
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-
936 am edt sat jun 27 2026

.this afternoon...east winds 10 to 15 knots. waves 1 to 2 feet. 
.tonight...east winds around 10 knots becoming northeast. waves
2 feet or less. 
.sunday...northeast winds around 10 knots becoming east. waves
2 feet or less. 
.sunday night...east winds 5 to 10 knots. waves 2 feet 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 to 2 feet. 
.wednesday...southwest winds 5 to 10 knots becoming west. waves
1 foot or less. 

$$

fzus63 kdtx 271335
glfsc 
expires:202606272145;;994522

lake st clair forecast
national weather service detroit/pontiac mi
935 am edt sat jun 27 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. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.


lcz460-272145-
lake st clair-
935 am edt sat jun 27 2026

.rest of today...northeast winds 5 to 10 knots. partly sunny.
widespread fog in the morning. waves 2 feet or less.
.tonight...northeast winds 10 to 15 knots diminishing to 5 to 10
knots in the late evening and overnight. partly cloudy. waves 2 feet
or less.
.sunday...northeast winds 5 to 10 knots veering to the east early in
the afternoon. mostly sunny. waves 2 feet or less.
.sunday night...east winds 5 to 10 knots. mostly clear. waves 2 feet
or less.
.monday...southeast winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon and evening. mostly clear. waves 2 feet or less.
.tuesday...southwest winds 10 to 15 knots. mostly clear. waves 2
feet or less.
.wednesday...southwest winds 10 to 15 knots. mostly clear. waves 2
feet or less.

$$

fzus63 kdtx 271335
glflh 
expires:202606272145;;994517

open lake forecast for lake huron
national weather service detroit/pontiac mi
935 am edt sat jun 27 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. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.


lhz361-272145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
935 am edt sat jun 27 2026

.rest of today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.sunday...light and variable winds becoming east 5 to 10 knots in
the late morning and afternoon. waves 2 feet or less. 
.sunday night...east winds 10 to 15 knots becoming southeast 5 to
10 knots by midnight...then increasing to 10 to 15 knots after
midnight. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.monday...southeast winds 10 to 15 knots increasing to 15 to
20 knots late in the morning...then decreasing to 10 to 15 knots
late in the evening. a chance of showers. waves 2 to 4 feet
building to 4 to 6 feet. waves occasionally around 8 feet. 
.tuesday...south winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then veering to the
south 5 to 10 knots early in the evening backing to the southwest
by midnight. a chance of showers by midnight. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.wednesday...southwest winds 10 to 15 knots becoming west 5 to
10 knots by midnight. a chance of showers early in the morning. a
chance of showers by midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 271335
glflh 
expires:202606272145;;994518

open lake forecast for lake huron
national weather service detroit/pontiac mi
935 am edt sat jun 27 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. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.


lhz362-363-272145-
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-
935 am edt sat jun 27 2026

.rest of today...light and variable winds. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.sunday...light and variable winds. waves 2 feet or less. 
.sunday night...light and variable winds becoming east 5 to
10 knots in the late evening and overnight. 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. waves 3 to 5 feet. 
.wednesday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then backing
to the south early in the evening veering to the southwest by
midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 271335
glflh 
expires:202606272145;;994519

open lake forecast for lake huron
national weather service detroit/pontiac mi
935 am edt sat jun 27 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. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.


lhz462>464-272145-
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-
935 am edt sat jun 27 2026

.rest of today...north winds 5 to 10 knots. waves 2 feet or less.
.tonight...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
early in the afternoon. waves 2 feet or less. 
.sunday night...northeast winds 5 to 10 knots veering to the
southeast after midnight. 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 late in the
afternoon. 
.tuesday...southwest winds 10 to 15 knots. waves 2 to 4 feet. 
.wednesday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots. waves 1 to 3 feet. 


$$

fzus63 kmkx 271349
glflm 
expires:202606272115;;995045

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
849 am cdt sat jun 27 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 is expected to linger across the
great lakes through tonight, with light north to northeast winds.
patchy fog is possible, especially across the northern two-thirds
of the lake. low pressure will deepen to 29.3 inches over the
central plains sunday, shifting winds to southeasterly. winds
shift southerly and increase into monday as low pressure lifts
into the canadian prairies. gusty southerly winds will continue
through at least wednesday as low pressure stalls, but gales are
not expected at this time.


lmz080-669-671-673-675-777-779-870-872-874-876-878-272115-
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-
849 am cdt sat jun 27 2026

sheboygan wi to pentwater mi south...

.rest of today...east winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft. 
.tonight...north winds 10 to 20 kt becoming east 10 to 15 kt.
waves 1 to 3 ft. 
.sunday...east winds 10 to 15 kt becoming southeast 10 to 20 kt.
waves 1 to 3 ft. 
.sunday night...southeast winds 15 to 25 kt increasing to 30 kt.
chance of showers overnight. waves 3 to 5 ft building to 4 to
7 ft occasionally to 9 ft. 
.monday...south winds to 30 kt. waves 4 to 7 ft occasionally to
9 ft building to 5 to 8 ft occasionally to 10 ft. 
.monday night...south winds to 30 kt diminishing to 15 to 25 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 3 to 5 ft.  

$$

fzus63 kmkx 271349
glflm 
expires:202606272115;;995044

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
849 am cdt sat jun 27 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 is expected to linger across the
great lakes through tonight, with light north to northeast winds.
patchy fog is possible, especially across the northern two-thirds
of the lake. low pressure will deepen to 29.3 inches over the
central plains sunday, shifting winds to southeasterly. winds
shift southerly and increase into monday as low pressure lifts
into the canadian prairies. gusty southerly winds will continue
through at least wednesday as low pressure stalls, but gales are
not expected at this time.


lmz261-362-364-366-563-565-567-868-272115-
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-
849 am cdt sat jun 27 2026

sheboygan wi to pentwater mi north...

.rest of today...northeast winds 5 to 10 kt becoming north early
this afternoon, then becoming 10 to 20 kt late. patchy fog. waves
1 to 2 ft. 
.tonight...northeast winds 10 to 15 kt veering to east. waves
1 to 2 ft. 
.sunday...southeast winds 10 to 15 kt becoming east 10 to 20 kt.
waves 1 to 3 ft. 
.sunday night...east winds 10 to 20 kt becoming southeast to
30 kt overnight. chance of showers in the evening, then showers
likely overnight. waves 2 to 4 ft building to 4 to 7 ft
occasionally to 9 ft. 
.monday...southeast winds to 30 kt becoming south. chance of
showers in the morning. waves 4 to 7 ft occasionally to 9 ft
building to 5 to 8 ft occasionally to 10 ft. 
.monday night...south winds to 30 kt. waves 6 to 9 ft
occasionally to 12 ft. 
.tuesday...south winds to 30 kt. waves 4 to 7 ft occasionally to
9 ft. 
.wednesday...southwest winds 15 to 25 kt becoming south. waves
3 to 5 ft.  

$$

fzus63 kmqt 271401
glfls 
expires:202606272000;;995551

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sat jun 27 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... 

through this afternoon, 30.1 inch high will extend from the upper 
great lakes to eastern hudson bay while low pressure of at least 
29.5 inches develops over the high plains. into sunday morning, the 
low consolidates to around 29.4 inches over southern saskatchewan as 
the high retreats to hudson bay, remaining at 30.1 inches. the low 
pushes into manitoba and the dakotas early monday morning while the 
high shifts southeast to just east of the lower great lakes. tuesday 
into wednesday, the low moves through northern ontario at around 
29.5 inches as 30.1 inch high pressure extends over much of the east 
coast. by thursday morning, the low will move east through quebec 
while 30.1 inch high pressure builds south of the great lakes.




lsz264-272000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt sat jun 27 2026

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

$$

fzus63 kmqt 271401
glfls 
expires:202606272000;;995552

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sat jun 27 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... 

through this afternoon, 30.1 inch high will extend from the upper 
great lakes to eastern hudson bay while low pressure of at least 
29.5 inches develops over the high plains. into sunday morning, the 
low consolidates to around 29.4 inches over southern saskatchewan as 
the high retreats to hudson bay, remaining at 30.1 inches. the low 
pushes into manitoba and the dakotas early monday morning while the 
high shifts southeast to just east of the lower great lakes. tuesday 
into wednesday, the low moves through northern ontario at around 
29.5 inches as 30.1 inch high pressure extends over much of the east 
coast. by thursday morning, the low will move east through quebec 
while 30.1 inch high pressure builds south of the great lakes.




lsz265-272000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt sat jun 27 2026

.rest of today...east winds 5 to 15 knots increasing to 10 to
20 knots late. waves calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots. waves calm to 2 feet. 
.sunday...east winds 10 to 20 knots increasing to 20 to 30 knots.
waves building to 3 to 5 feet occasionally to 7 feet. 
.sunday night...southeast winds 20 to 30 knots. a chance of
showers through midnight, then showers likely and a slight chance
of thunderstorms after midnight. waves subsiding to 2 to 4 feet,
then building to 3 to 6 feet occasionally to 8 feet. 
.monday...southeast winds 15 to 25 knots. a slight chance of
showers and thunderstorms through early afternoon. waves 3 to
6 feet occasionally to 8 feet. 
.monday night...southeast winds 20 to 30 knots becoming south
15 to 25 knots after midnight. a chance of thunderstorms through
midnight. a chance of showers. waves subsiding to 1 to 3 feet. 
.tuesday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of showers and thunderstorms. waves subsiding
to calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 271401
glfls 
expires:202606272000;;995549

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sat jun 27 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... 

through this afternoon, 30.1 inch high will extend from the upper 
great lakes to eastern hudson bay while low pressure of at least 
29.5 inches develops over the high plains. into sunday morning, the 
low consolidates to around 29.4 inches over southern saskatchewan as 
the high retreats to hudson bay, remaining at 30.1 inches. the low 
pushes into manitoba and the dakotas early monday morning while the 
high shifts southeast to just east of the lower great lakes. tuesday 
into wednesday, the low moves through northern ontario at around 
29.5 inches as 30.1 inch high pressure extends over much of the east 
coast. by thursday morning, the low will move east through quebec 
while 30.1 inch high pressure builds south of the great lakes.




lsz162-272000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt sat jun 27 2026 /900 am cdt sat jun 27 2026/

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

$$

fzus63 kmqt 271401
glfls 
expires:202606272000;;995554

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sat jun 27 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... 

through this afternoon, 30.1 inch high will extend from the upper 
great lakes to eastern hudson bay while low pressure of at least 
29.5 inches develops over the high plains. into sunday morning, the 
low consolidates to around 29.4 inches over southern saskatchewan as 
the high retreats to hudson bay, remaining at 30.1 inches. the low 
pushes into manitoba and the dakotas early monday morning while the 
high shifts southeast to just east of the lower great lakes. tuesday 
into wednesday, the low moves through northern ontario at around 
29.5 inches as 30.1 inch high pressure extends over much of the east 
coast. by thursday morning, the low will move east through quebec 
while 30.1 inch high pressure builds south of the great lakes.




lsz267-272000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt sat jun 27 2026

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

$$

fzus63 kmqt 271401
glfls 
expires:202606272000;;995553

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sat jun 27 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... 

through this afternoon, 30.1 inch high will extend from the upper 
great lakes to eastern hudson bay while low pressure of at least 
29.5 inches develops over the high plains. into sunday morning, the 
low consolidates to around 29.4 inches over southern saskatchewan as 
the high retreats to hudson bay, remaining at 30.1 inches. the low 
pushes into manitoba and the dakotas early monday morning while the 
high shifts southeast to just east of the lower great lakes. tuesday 
into wednesday, the low moves through northern ontario at around 
29.5 inches as 30.1 inch high pressure extends over much of the east 
coast. by thursday morning, the low will move east through quebec 
while 30.1 inch high pressure builds south of the great lakes.




lsz266-272000-
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 sat jun 27 2026

.rest of today...east winds less than 10 knots increasing to 5 to
15 knots late. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering southeast after
midnight. waves calm to 2 feet. 
.sunday...east winds 10 to 20 knots increasing to 15 to 25 knots
late. waves building to 2 to 4 feet. 
.sunday night...southeast winds 15 to 25 knots increasing to
20 to 30 knots after midnight. a chance of showers through
midnight, then showers likely and a slight chance of
thunderstorms after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday...southeast winds 20 to 30 knots. a chance of showers and
a slight chance of thunderstorms. waves 3 to 6 feet occasionally
to 8 feet. 
.monday night...southeast winds 20 to 30 knots becoming south
15 to 25 knots after midnight. a chance of showers and
thunderstorms. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.tuesday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of showers and thunderstorms. waves subsiding
to calm to 2 feet, then building to 1 to 3 feet. 
.wednesday...southwest winds 5 to 15 knots. a chance of showers.
waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 271401
glfls 
expires:202606272000;;995550

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sat jun 27 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... 

through this afternoon, 30.1 inch high will extend from the upper 
great lakes to eastern hudson bay while low pressure of at least 
29.5 inches develops over the high plains. into sunday morning, the 
low consolidates to around 29.4 inches over southern saskatchewan as 
the high retreats to hudson bay, remaining at 30.1 inches. the low 
pushes into manitoba and the dakotas early monday morning while the 
high shifts southeast to just east of the lower great lakes. tuesday 
into wednesday, the low moves through northern ontario at around 
29.5 inches as 30.1 inch high pressure extends over much of the east 
coast. by thursday morning, the low will move east through quebec 
while 30.1 inch high pressure builds south of the great lakes.




lsz263-272000-
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 sat jun 27 2026

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

$$