fzus61 kbuf 211402
glflo 
expires:202606212100;;128044

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sun jun 21 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 ridge of high pressure averaging 29.9 inches will 
build over the great lakes through the day today. a 29.7 inch low is 
then forecast to move south of the lower great lakes monday and 
monday night, before moving off the new england coast by tuesday. a 
broad area of high pressure averaging 30.1 inches will advance over 
the eastern great lakes region tuesday and wednesday, before exiting 
east into new england on thursday as a weak 29.8 inch low moves east 
into the central great lakes.


loz062-212100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt sun jun 21 2026

.this afternoon...west winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.tonight...southwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.monday...southeast winds 10 knots or less becoming northeast.
showers likely. waves 1 foot or less. 
.monday night...northeast winds 5 to 10 knots becoming northwest.
a chance of showers in the evening. waves 1 foot or less. 
.tuesday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.wednesday...west winds less than 10 knots becoming south. waves
1 foot or less. 
.thursday...southeast winds 10 knots or less becoming south. a
chance of showers. waves 1 foot or less. 

$$

fzus61 kbuf 211402
glflo 
expires:202606212100;;128045

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sun jun 21 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 ridge of high pressure averaging 29.9 inches will 
build over the great lakes through the day today. a 29.7 inch low is 
then forecast to move south of the lower great lakes monday and 
monday night, before moving off the new england coast by tuesday. a 
broad area of high pressure averaging 30.1 inches will advance over 
the eastern great lakes region tuesday and wednesday, before exiting 
east into new england on thursday as a weak 29.8 inch low moves east 
into the central great lakes.


loz063>065-212100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt sun jun 21 2026

.this afternoon...west winds 5 to 15 knots. waves 2 feet or less. 
.tonight...west winds 10 knots or less becoming south. waves
1 foot or less. 
.monday...south winds 5 to 10 knots becoming east. showers. waves
1 foot or less. 
.monday night...northeast winds 10 knots or less becoming
northwest. showers likely in the evening. waves 1 foot or less. 
.tuesday...northwest winds 5 to 15 knots. waves 2 feet or less. 
.wednesday...west winds 10 knots or less becoming south. waves
1 foot or less. 
.thursday...southeast winds 10 knots or less becoming south. a
chance of showers during the day, then showers likely thursday
night. waves 1 foot or less. 

$$

fzus61 kcle 211336
glfle 
expires:202606212015;;127511

open lake forecast for lake erie
national weather service cleveland oh
936 am edt sun jun 21 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 30.00 inches over lake erie this morning will drift
east today as low pressure 29.70 inches moves out of the 
mississippi valley tonight and passes just south of the lake 
monday. a weak trough averaging 30.00 inches will linger over the
lake monday night before a ridge averaging 30.10 inches builds 
down across the great lakes tuesday through wednesday. this ridge 
will depart by thursday as low pressure 29.80 inches moves into 
the northern great lakes and pushes a cold front across lake erie.


lez061-168-169-212015-
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-
936 am edt sun jun 21 2026

.this afternoon...northwest winds less than 10 knots becoming
west. waves 1 foot or less. 
.tonight...southwest winds 10 knots or less becoming east. a
slight chance of rain late in the evening. a chance of rain after
midnight, then rain late. waves 1 foot or less. 
.monday...east winds 15 to 20 knots becoming northeast. showers.
waves 1 to 3 feet building to 3 to 5 feet. 
.monday night...northeast winds 15 to 20 knots becoming north
5 to 15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...north winds 5 to 10 knots. waves 2 feet or less. 
.wednesday...northwest winds 10 knots or less becoming south.
waves 1 foot or less. 
.thursday...south winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 211336
glfle 
expires:202606212015;;127510

open lake forecast for lake erie
national weather service cleveland oh
936 am edt sun jun 21 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 30.00 inches over lake erie this morning will drift
east today as low pressure 29.70 inches moves out of the 
mississippi valley tonight and passes just south of the lake 
monday. a weak trough averaging 30.00 inches will linger over the
lake monday night before a ridge averaging 30.10 inches builds 
down across the great lakes tuesday through wednesday. this ridge 
will depart by thursday as low pressure 29.80 inches moves into 
the northern great lakes and pushes a cold front across lake erie.


lez165>167-212015-
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-
936 am edt sun jun 21 2026

.this afternoon...north winds less than 10 knots becoming south.
waves 1 foot or less. 
.tonight...east winds 10 knots or less increasing to 15 to
20 knots after midnight. a chance of rain late in the evening.
rain after midnight, then rain with a slight chance of
thunderstorms late. waves 2 feet or less building to 2 to 4 feet.
.monday...east winds 15 to 20 knots becoming northeast. showers
in the morning, then a chance of showers in the afternoon. waves
2 to 4 feet building to 3 to 6 feet. 
.monday night...northeast winds 15 to 20 knots becoming north
10 to 15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.tuesday...north winds 5 to 15 knots. waves 1 to 3 feet subsiding
to 1 foot or less. 
.wednesday...west winds 10 knots or less becoming south. a chance
of showers wednesday night. waves 1 foot or less. 
.thursday...south winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 211336
glfle 
expires:202606212015;;127509

open lake forecast for lake erie
national weather service cleveland oh
936 am edt sun jun 21 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 30.00 inches over lake erie this morning will drift
east today as low pressure 29.70 inches moves out of the 
mississippi valley tonight and passes just south of the lake 
monday. a weak trough averaging 30.00 inches will linger over the
lake monday night before a ridge averaging 30.10 inches builds 
down across the great lakes tuesday through wednesday. this ridge 
will depart by thursday as low pressure 29.80 inches moves into 
the northern great lakes and pushes a cold front across lake erie.


lez162>164-212015-
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 sun jun 21 2026

.this afternoon...north winds less than 10 knots becoming east.
waves 1 foot or less. 
.tonight...east winds 5 to 10 knots increasing to 15 to 20 knots.
a slight chance of rain early, then a chance of rain late in the
evening. rain with a slight chance of thunderstorms after
midnight. waves 1 foot or less building to 2 to 4 feet. 
.monday...east winds 15 to 20 knots becoming northeast. showers
likely in the morning, then a chance of showers in the afternoon.
waves 3 to 5 feet. 
.monday night...northeast winds 15 to 20 knots becoming north
10 to 15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...north winds 5 to 15 knots becoming east less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.wednesday...south winds 10 knots or less. a chance of showers
and thunderstorms wednesday night. waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots becoming west. a chance
of showers and thunderstorms during the day, then a chance of
showers thursday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 211339
glfsc 
expires:202606212145;;127599

lake st clair forecast
national weather service detroit/pontiac mi
939 am edt sun jun 21 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...diffuse high pressure, 29.90 inches, holds over the
central great lakes today. a compact low pressure system, 29.60
inches, will arrive in the ohio valley tonight through monday
morning, bringing renewed rain and thunderstorm chances along
with elevated winds across the southern great lakes.


lcz460-212145-
lake st clair-
939 am edt sun jun 21 2026

.rest of today...light and variable winds becoming southeast 5 to 10
knots late in the afternoon. partly sunny in the late morning and
early afternoon becoming cloudy. waves 2 feet or less.
.tonight...southeast winds 5 to 10 knots becoming east 10 to 15
knots after midnight. a chance of light showers in the
evening...then showers after midnight. waves 2 feet or less.
.monday...northeast winds 15 to 20 knots diminishing to 10 to 15
knots early in the afternoon. mostly cloudy until late afternoon
then clearing. a chance of light showers until late afternoon. waves
1 to 3 feet.
.monday night...north winds 10 to 15 knots. mostly clear. waves 2
feet or less.
.tuesday...north winds 5 to 10 knots. sunny in the morning becoming
mostly clear. waves 2 feet or less.
.wednesday...south winds 5 to 10 knots. partly cloudy. a chance of
showers and thunderstorms. waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots. partly cloudy. showers
likely and a chance of thunderstorms. waves 2 feet or less.

$$

fzus63 kdtx 211339
glflh 
expires:202606212145;;127601

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 am edt sun jun 21 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...diffuse high pressure, 29.90 inches, holds over the
central great lakes today. a compact low pressure system, 29.60
inches, will arrive in the ohio valley tonight through monday
morning, bringing renewed rain and thunderstorm chances along
with elevated winds across the southern great lakes.


lhz362-363-212145-
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-
939 am edt sun jun 21 2026

.rest of today...northwest winds 5 to 10 knots late in the
morning becoming light and variable. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.monday...light and variable winds becoming north 5 to 10 knots
in the late morning and afternoon. waves 2 feet or less. 
.monday night...northeast winds 10 to 15 knots backing to the
northwest in the late evening and overnight. waves 1 to 3 feet
building to 2 to 4 feet in the late evening and overnight. 
.tuesday...north winds 5 to 10 knots becoming light and variable.
waves 1 to 3 feet. 
.wednesday...light and variable winds becoming southeast 5 to
10 knots . a chance of showers by midnight. waves 2 feet or less.
.thursday...southeast winds 5 to 10 knots. a chance of showers
early in the morning. a chance of showers early in the evening.
waves 2 feet or less. 


$$

fzus63 kdtx 211339
glflh 
expires:202606212145;;127600

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 am edt sun jun 21 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...diffuse high pressure, 29.90 inches, holds over the
central great lakes today. a compact low pressure system, 29.60
inches, will arrive in the ohio valley tonight through monday
morning, bringing renewed rain and thunderstorm chances along
with elevated winds across the southern great lakes.


lhz361-212145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
939 am edt sun jun 21 2026

.rest of today...west 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. 
.monday...north winds 5 to 10 knots backing to the west early in
the afternoon. waves 2 feet or less. 
.monday night...northwest winds 10 to 15 knots. waves 2 to
4 feet. 
.tuesday...northwest winds 5 to 10 knots backing to the west late
in the afternoon...then veering to the northwest late in the
evening. waves 2 feet or less. 
.wednesday...light and variable winds becoming east 5 to 10 knots
. a chance of showers. waves 2 feet or less. 
.thursday...east winds 5 to 10 knots. a chance of showers. waves
2 feet or less. 


$$

fzus63 kdtx 211339
glflh 
expires:202606212145;;127602

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 am edt sun jun 21 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...diffuse high pressure, 29.90 inches, holds over the
central great lakes today. a compact low pressure system, 29.60
inches, will arrive in the ohio valley tonight through monday
morning, bringing renewed rain and thunderstorm chances along
with elevated winds across the southern great lakes.


lhz462>464-212145-
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-
939 am edt sun jun 21 2026

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


$$

fzus63 kmkx 211900
glflm 
expires:202606220330;;140652

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
200 pm cdt sun jun 21 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...

low pressure around 29.7 inches will track eastward from northeast
missouri to ohio by monday. this will bring light easterly winds 
through the afternoon becoming breezy northeast to north winds 
over the southern portion of the lake tonight and monday. lighter 
northerly winds return late monday evening into tuesday as high 
pressure around 30.1 inches builds into the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-220330-
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-
200 pm cdt sun jun 21 2026

sheboygan wi to pentwater mi south...

.tonight...east winds 20 to 30 kt becoming northeast. showers 
this evening, then showers likely overnight. waves 2 to 4 ft 
building to 4 to 6 ft occasionally to 8 ft. 
.monday...northeast winds 20 to 30 kt becoming north. waves 4 to
7 ft occasionally to 9 ft. 
.monday night...north winds 15 to 25 kt diminishing to 10 to
15 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to
4 ft. 
.tuesday...north winds 10 to 20 kt. waves 1 to 3 ft. 
.tuesday night...northeast winds 10 to 15 kt veering to
southwest. waves 1 to 2 ft. 
.wednesday...south winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 3 ft. 
.wednesday night...south winds 10 to 15 kt becoming southwest
5 to 10 kt. chance of showers and thunderstorms. waves 1 to 2 ft.
.thursday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft. 
.friday...northwest winds 10 to 15 kt becoming northeast 10 to
20 kt. waves 1 ft or less.  

$$

fzus63 kmkx 211900
glflm 
expires:202606220330;;140651

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
200 pm cdt sun jun 21 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...

low pressure around 29.7 inches will track eastward from northeast
missouri to ohio by monday. this will bring light easterly winds 
through the afternoon becoming breezy northeast to north winds 
over the southern portion of the lake tonight and monday. lighter 
northerly winds return late monday evening into tuesday as high 
pressure around 30.1 inches builds into the region.


lmz261-362-364-366-563-565-567-868-220330-
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-
200 pm cdt sun jun 21 2026

sheboygan wi to pentwater mi north...

.tonight...northeast winds 5 to 10 kt increasing to 10 to 15 kt
after midnight, then becoming north 10 to 20 kt late. waves 1 to
3 ft. 
.monday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft. 
.monday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.tuesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.tuesday night...north winds 5 to 10 kt veering to southeast.
waves 1 ft or less. 
.wednesday...south winds 10 to 15 kt increasing to 10 to 20 kt.
showers likely in the morning, then showers likely with a chance
of thunderstorms in the afternoon. waves 1 to 3 ft. 
.wednesday night...southeast winds 10 to 15 kt becoming south.
chance of showers and thunderstorms. waves 1 to 2 ft. 
.thursday...northwest winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft. 
.friday...northwest winds 10 to 15 kt backing to southwest 10 to
20 kt. waves 1 ft or less.  

$$

fzus63 kmqt 211401
glfls 
expires:202606212000;;128004

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun jun 21 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging. high pressure over lake superior builds to 30.2 inches by 
early tuesday morning and remains in place through the day. pressure 
decreases beginning wednesday morning, falling to 29.9 inches by 
thursday morning. broad 30.0 inch high pressure fills in over the 
upper great lakes for friday.




lsz266-212000-
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-
1001 am edt sun jun 21 2026

.rest of today...northwest winds 5 to 15 knots veering northeast
late. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots backing northwest after
midnight. waves calm to 2 feet. 
.monday...northwest winds 10 to 20 knots. waves calm to 2 feet. 
.monday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.tuesday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots veering southeast after
midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots backing northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 211401
glfls 
expires:202606212000;;128005

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun jun 21 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging. high pressure over lake superior builds to 30.2 inches by 
early tuesday morning and remains in place through the day. pressure 
decreases beginning wednesday morning, falling to 29.9 inches by 
thursday morning. broad 30.0 inch high pressure fills in over the 
upper great lakes for friday.




lsz267-212000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt sun jun 21 2026

.rest of today...northwest winds 5 to 15 knots veering north in
the afternoon. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots backing northwest after
midnight. waves calm to 2 feet. 
.monday...northwest winds 10 to 20 knots backing west late. waves
calm to 2 feet. 
.monday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.tuesday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.tuesday night...north winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 211401
glfls 
expires:202606212000;;128002

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun jun 21 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging. high pressure over lake superior builds to 30.2 inches by 
early tuesday morning and remains in place through the day. pressure 
decreases beginning wednesday morning, falling to 29.9 inches by 
thursday morning. broad 30.0 inch high pressure fills in over the 
upper great lakes for friday.




lsz264-212000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt sun jun 21 2026

.rest of today...north winds less than 10 knots veering northeast
late. waves calm to 2 feet. 
.tonight...west winds less than 10 knots becoming northwest 5 to
15 knots after midnight. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots backing west late. waves
calm to 2 feet. 
.monday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...west winds less than 10 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.tuesday night...southeast winds less than 10 knots becoming east
5 to 15 knots after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast. a chance
of rain showers. waves calm to 2 feet. 
.thursday...north winds less than 10 knots backing west. waves
calm to 2 feet. 

$$

fzus63 kmqt 211401
glfls 
expires:202606212000;;128001

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun jun 21 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging. high pressure over lake superior builds to 30.2 inches by 
early tuesday morning and remains in place through the day. pressure 
decreases beginning wednesday morning, falling to 29.9 inches by 
thursday morning. broad 30.0 inch high pressure fills in over the 
upper great lakes for friday.




lsz263-212000-
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-
1001 am edt sun jun 21 2026

.rest of today...east winds less than 10 knots backing northeast
in the afternoon. waves calm to 2 feet. 
.tonight...northeast winds less than 10 knots becoming north 5 to
15 knots late. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet. 
.monday night...west winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.tuesday...southwest winds less than 10 knots becoming northeast
5 to 15 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots. a chance of rain
showers through midnight. rain showers likely after midnight.
waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. a chance of rain
showers. waves calm to 2 feet. 
.thursday...north winds less than 10 knots backing west. waves
calm to 2 feet. 

$$

fzus63 kmqt 211401
glfls 
expires:202606212000;;128000

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun jun 21 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging. high pressure over lake superior builds to 30.2 inches by 
early tuesday morning and remains in place through the day. pressure 
decreases beginning wednesday morning, falling to 29.9 inches by 
thursday morning. broad 30.0 inch high pressure fills in over the 
upper great lakes for friday.




lsz162-212000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt sun jun 21 2026 /901 am cdt sun jun 21 2026/

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

$$

fzus63 kmqt 211401
glfls 
expires:202606212000;;128003

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sun jun 21 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging. high pressure over lake superior builds to 30.2 inches by 
early tuesday morning and remains in place through the day. pressure 
decreases beginning wednesday morning, falling to 29.9 inches by 
thursday morning. broad 30.0 inch high pressure fills in over the 
upper great lakes for friday.




lsz265-212000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt sun jun 21 2026

.rest of today...northeast winds 5 to 15 knots veering east late.
waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots backing northwest after
midnight. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.tuesday...northwest winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.tuesday night...southeast winds 5 to 15 knots. a chance of
showers after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing north. a chance of
showers. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots backing west. waves calm to
2 feet. 

$$