fzus61 kbuf 122002
glflo 
expires:202606130300;;635465

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt fri jun 12 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.0 inch high will ridge across the lower great lakes 
tonight through sunday morning. a cold front crosses the region 
later sunday and sunday night. the eastern edge of a 30.1 inch high 
over the plains states will push over the lake on monday with a 
trough averaging 29.8 inches to cross the lake on tuesday. a 29.4 
inch low will track north of the lake on wednesday, with its 
trailing cold front approaching the lake late in the day on 
wednesday.


loz062-130300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt fri jun 12 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 122002
glflo 
expires:202606130300;;635466

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt fri jun 12 2026

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.0 inch high will ridge across the lower great lakes 
tonight through sunday morning. a cold front crosses the region 
later sunday and sunday night. the eastern edge of a 30.1 inch high 
over the plains states will push over the lake on monday with a 
trough averaging 29.8 inches to cross the lake on tuesday. a 29.4 
inch low will track north of the lake on wednesday, with its 
trailing cold front approaching the lake late in the day on 
wednesday.


loz063>065-130300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt fri jun 12 2026

.tonight...west winds 15 to 25 knots becoming southwest and
diminishing to 5 to 15 knots. waves 3 to 6 feet subsiding to 1 to
3 feet. 
.saturday...west winds 5 to 15 knots. waves 1 to 3 feet. 
.saturday night...southwest winds 10 to 15 knots becoming south.
waves 1 to 2 feet. 
.sunday...south winds 10 to 15 knots becoming west. showers
likely in the morning, then showers with a chance of
thunderstorms in the afternoon. waves 1 to 2 feet. 
.sunday night...west winds 10 to 15 knots increasing to 15 to
20 knots. showers with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 1 to 3 feet building to
3 to 6 feet. 
.monday...west winds 15 to 20 knots becoming southwest 5 to
15 knots. waves 3 to 6 feet subsiding to 1 to 2 feet. 
.tuesday...southwest winds 5 to 15 knots becoming south. waves
2 feet or less. 
.wednesday...south winds 5 to 15 knots increasing to 15 to
20 knots. a chance of showers during the day, then showers likely
wednesday night. waves 2 feet or less building to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 121948
glfle 
expires:202606130215;;635191

open lake forecast for lake erie
national weather service cleveland oh
348 pm edt fri jun 12 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 ridge averaging 30.00 inches will persist over the lake through
saturday. a cold front will move east across the lake on sunday, 
followed by a ridge averaging 30.00 inches monday into tuesday. a
stronger low pressure system 29.40 inches will approach the
western great lakes on wednesday. 


lez162>165-130215-
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-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
348 pm edt fri jun 12 2026

.tonight...west winds 10 to 15 knots becoming southwest. waves
1 to 2 feet. 
.saturday...west winds 5 to 10 knots becoming south. waves 2 feet
or less. 
.saturday night...south winds 5 to 15 knots becoming southwest.
waves 1 to 3 feet. 
.sunday...southwest winds 10 to 15 knots becoming northwest 15 to
20 knots. showers in the morning, then showers with a chance of
thunderstorms in the afternoon. waves 1 to 3 feet. 
.sunday night...northwest winds 15 to 20 knots diminishing to
10 to 15 knots. a chance of showers in the evening. waves 1 to
3 feet. 
.monday...northwest winds 5 to 15 knots becoming west. waves
2 feet or less. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers tuesday night. waves 1 to 3 feet. 
.wednesday...southwest winds 15 to 20 knots becoming south and
increasing to 30 knots. a chance of showers during the day, then
showers with a chance of thunderstorms wednesday night. waves
2 to 4 feet building to 4 to 7 feet. waves occasionally around
9 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 121948
glfle 
expires:202606130215;;635192

open lake forecast for lake erie
national weather service cleveland oh
348 pm edt fri jun 12 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 ridge averaging 30.00 inches will persist over the lake through
saturday. a cold front will move east across the lake on sunday, 
followed by a ridge averaging 30.00 inches monday into tuesday. a
stronger low pressure system 29.40 inches will approach the
western great lakes on wednesday. 


lez166-167-130215-
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-
348 pm edt fri jun 12 2026

.tonight...southwest winds 10 to 15 knots becoming west. waves
2 to 4 feet subsiding to 1 to 2 feet. 
.saturday...southwest winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...south winds 5 to 15 knots becoming southwest.
waves 1 to 3 feet. 
.sunday...southwest winds 10 to 15 knots becoming northwest.
showers in the morning, then showers with a chance of
thunderstorms in the afternoon. waves 1 to 3 feet. 
.sunday night...northwest winds 10 to 15 knots. showers likely in
the evening. waves 2 to 3 feet. 
.monday...northwest winds 5 to 15 knots becoming southwest. waves
1 to 3 feet. 
.tuesday...southwest winds 5 to 15 knots becoming south 15 to
20 knots. a chance of showers tuesday night. waves 1 to 3 feet
building to 2 to 4 feet. 
.wednesday...southwest winds 15 to 20 knots becoming south and
increasing to 30 knots. a chance of showers during the day, then
showers with a chance of thunderstorms wednesday night. waves
3 to 5 feet building to 4 to 7 feet. waves occasionally around
9 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 121948
glfle 
expires:202606130215;;635193

open lake forecast for lake erie
national weather service cleveland oh
348 pm edt fri jun 12 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 ridge averaging 30.00 inches will persist over the lake through
saturday. a cold front will move east across the lake on sunday, 
followed by a ridge averaging 30.00 inches monday into tuesday. a
stronger low pressure system 29.40 inches will approach the
western great lakes on wednesday. 


lez061-168-169-130215-
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-
348 pm edt fri jun 12 2026

.tonight...southwest winds 10 to 15 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.saturday...southwest winds 5 to 10 knots. waves 1 to 2 feet. 
.saturday night...south winds 5 to 15 knots becoming southwest.
waves 1 to 3 feet. 
.sunday...south winds 10 to 15 knots becoming west. showers in
the morning, then showers with a chance of thunderstorms in the
afternoon. waves 1 to 3 feet. 
.sunday night...northwest winds 10 to 15 knots. showers in the
evening. waves 1 to 3 feet. 
.monday...west winds 5 to 15 knots becoming southwest. waves 1 to
2 feet. 
.tuesday...southwest winds 5 to 10 knots becoming south and
increasing to 15 to 20 knots. a chance of showers tuesday night.
waves 1 to 3 feet. 
.wednesday...south winds 15 to 25 knots. a chance of showers
during the day, then showers wednesday night. waves 2 to 4 feet
building to 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 121940
glfsc 
expires:202606130345;;635015

lake st clair forecast
national weather service detroit/pontiac mi
340 pm edt fri jun 12 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...low pressure system, around 29.30 inches, over eastern
ontario has pulled a cold front through the rest of the eastern
lakes early this morning. high pressure is building into the
southern great lakes while another cold front will pass through
the area early sunday morning.


lcz460-130345-
lake st clair-
340 pm edt fri jun 12 2026

.tonight...west winds 10 to 15 knots diminishing to 5 to 10 knots
early in the morning. clear. waves 2 feet or less.
.saturday...southwest winds 5 to 10 knots increasing to 10 to 15
knots in the afternoon. sunny. waves 2 feet or less.
.saturday night...southwest winds 15 to 20 knots diminishing to 10
to 15 knots in the late evening and overnight. mostly clear early in
the evening becoming mostly cloudy. waves 1 to 3 feet.
.sunday...northwest winds 10 to 15 knots increasing to 15 to 20
knots early in the afternoon. showers until late afternoon. waves 2
feet or less.
.sunday night...northwest winds 15 to 20 knots diminishing to 10 to
15 knots in the late evening and overnight. mostly clear. waves 2
feet or less.
.monday...west winds 5 to 10 knots increasing to 10 to 15 knots in
the afternoon and evening. mostly clear. waves 2 feet or less.
.tuesday...south winds 10 to 15 knots. mostly clear. a chance of
showers. waves 2 feet or less.
.wednesday...south winds 15 to 20 knots. partly cloudy. showers
likely and a chance of thunderstorms. waves 1 to 3 feet.

$$

fzus63 kdtx 121938
glflh 
expires:202606130345;;634900

open lake forecast for lake huron
national weather service detroit/pontiac mi
338 pm edt fri jun 12 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...low pressure system, around 29.30 inches, over eastern
ontario has pulled a cold front through the rest of the eastern
lakes early this morning. high pressure is building into the
southern great lakes while another cold front will pass through
the area early sunday morning.


lhz462>464-130345-
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-
338 pm edt fri jun 12 2026

.tonight...southwest winds 10 to 15 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet after midnight. 
.saturday...southwest winds 10 to 15 knots. waves 2 to 4 feet. 
.saturday night...southwest winds 10 to 15 knots becoming
northwest 5 to 10 knots after midnight. a chance of showers after
midnight. waves 3 to 5 feet subsiding to 1 to 3 feet after
midnight. 
.sunday...north winds 5 to 10 knots. showers likely. waves 1 to
3 feet. 
.sunday night...northwest winds 5 to 10 knots becoming west 10 to
15 knots after midnight. waves 1 to 3 feet building to 2 to
4 feet in the late evening and overnight. 
.monday...west winds 10 to 15 knots becoming southwest 5 to
10 knots. waves 1 to 3 feet. 
.tuesday...southwest winds 5 to 10 knots becoming south 10 to
15 knots . a chance of showers . waves 1 to 3 feet building to
2 to 4 feet by midnight. 
.wednesday...south winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then increasing to 15 to 20 knots
with gusts to around 30 knots by midnight. a chance of showers.
rain showers by midnight. waves 2 to 4 feet subsiding to 1 to
3 feet until early evening...then building to 3 to 5 feet by
midnight. 


$$

fzus63 kdtx 121938
glflh 
expires:202606130345;;634899

open lake forecast for lake huron
national weather service detroit/pontiac mi
338 pm edt fri jun 12 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...low pressure system, around 29.30 inches, over eastern
ontario has pulled a cold front through the rest of the eastern
lakes early this morning. high pressure is building into the
southern great lakes while another cold front will pass through
the area early sunday morning.


lhz362-363-130345-
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-
338 pm edt fri jun 12 2026

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


$$

fzus63 kdtx 121938
glflh 
expires:202606130345;;634898

open lake forecast for lake huron
national weather service detroit/pontiac mi
338 pm edt fri jun 12 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...low pressure system, around 29.30 inches, over eastern
ontario has pulled a cold front through the rest of the eastern
lakes early this morning. high pressure is building into the
southern great lakes while another cold front will pass through
the area early sunday morning.


lhz361-130345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
338 pm edt fri jun 12 2026

.tonight...west winds 10 to 15 knots becoming southwest 5 to
10 knots by midnight...then increasing to 10 to 15 knots early in
the morning. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.saturday...southwest winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. showers likely in the
morning...then showers likely and a chance of thunderstorms in
the afternoon. waves 3 to 5 feet. 
.saturday night...southwest winds 10 to 15 knots becoming west
5 to 10 knots in the late evening and overnight. a chance of
showers and thunderstorms in the evening. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.sunday...west winds 5 to 10 knots increasing to 15 to 20 knots.
waves 1 to 3 feet building to 3 to 5 feet early in the afternoon.
.sunday night...northwest winds 15 to 20 knots becoming west
10 to 15 knots in the late evening and overnight. waves 3 to
5 feet. 
.monday...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the afternoon...then backing to the southwest late in the
evening. waves 2 to 4 feet subsiding to 1 to 3 feet late in the
afternoon. 
.tuesday...southwest winds 5 to 10 knots backing to the southeast
. a chance of showers . waves 1 to 3 feet. 
.wednesday...south winds 5 to 10 knots increasing to 10 to
15 knots until early evening...then backing to the southeast by
midnight. a chance of showers. rain showers likely by midnight.
waves 1 to 3 feet building to 3 to 5 feet by midnight. 


$$

fzus63 kmkx 122004
glflm 
expires:202606130315;;635551

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
304 pm cdt fri jun 12 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 29.2 inches in the hudson bay will continue 
to bring gusty west-southwest winds to lake michigan through this 
evening. winds will gradually diminish this evening, increasing 
briefly again saturday ahead of a cold front. as the cold front 
pushes north to south saturday night, winds become northwesterly 
and brisk. winds remain northwesterly but diminish through sunday,
remaining light and variable through tuesday morning before low 
pressure develops in the northern plains and brings gusty 
southwesterly winds to the lake through wednesday. winds become 
very gusty going into wednesday evening as low pressure crosses 
the northern half of the lake. a few gales are possible. winds 
then shift to northwesterly as low pressure exits on thursday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-130315-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
304 pm cdt fri jun 12 2026

sheboygan wi to pentwater mi south...

.tonight...southwest winds 10 to 20 kt. waves 2 to 4 ft. 
.saturday...southwest winds 10 to 20 kt increasing to 30 kt, then
diminishing to 15 to 25 kt late. chance of showers and
thunderstorms in the afternoon. waves 4 to 6 ft occasionally to
8 ft. 
.saturday night...southwest winds 10 to 20 kt veering to
northwest. showers likely with a chance of thunderstorms in the
evening, then chance of showers overnight. waves 3 to 5 ft
subsiding to 2 to 4 ft. 
.sunday...northwest winds 15 to 25 kt. waves 3 to 5 ft. 
.sunday night...west winds 10 to 20 kt. waves 1 to 3 ft. 
.monday...west winds 10 to 20 kt. waves 1 to 3 ft. 
.monday night...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.tuesday...southwest winds 10 to 20 kt becoming south to 30 kt.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. chance of thunderstorms. waves 2 to 4 ft building to 3 to
5 ft.  

$$

fzus63 kmkx 122004
glflm 
expires:202606130315;;635550

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
304 pm cdt fri jun 12 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 29.2 inches in the hudson bay will continue 
to bring gusty west-southwest winds to lake michigan through this 
evening. winds will gradually diminish this evening, increasing 
briefly again saturday ahead of a cold front. as the cold front 
pushes north to south saturday night, winds become northwesterly 
and brisk. winds remain northwesterly but diminish through sunday,
remaining light and variable through tuesday morning before low 
pressure develops in the northern plains and brings gusty 
southwesterly winds to the lake through wednesday. winds become 
very gusty going into wednesday evening as low pressure crosses 
the northern half of the lake. a few gales are possible. winds 
then shift to northwesterly as low pressure exits on thursday.


lmz261-362-364-366-563-565-567-868-130315-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
304 pm cdt fri jun 12 2026

sheboygan wi to pentwater mi north...

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

$$

fzus63 kmqt 122001
glfls 
expires:202606130800;;635365

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jun 12 2026

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

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

.synopsis... 

troughing progressively weakens to 29.7 inches over lake superior 
tonight through saturday midday, and further to 29.8 early sunday. a 
29.7 inch trough moves through the lake sunday night before 29.8 
inch ridging pushes back in on monday. troughing to 29.7 inches 
occurs again on monday before deepening beginning tuesday morning, 
reaching 29.6 inches by late tuesday and remaining in place through 
wednesday.




lsz264-130800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm edt fri jun 12 2026

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

$$

fzus63 kmqt 122001
glfls 
expires:202606130800;;635366

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jun 12 2026

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

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

.synopsis... 

troughing progressively weakens to 29.7 inches over lake superior 
tonight through saturday midday, and further to 29.8 early sunday. a 
29.7 inch trough moves through the lake sunday night before 29.8 
inch ridging pushes back in on monday. troughing to 29.7 inches 
occurs again on monday before deepening beginning tuesday morning, 
reaching 29.6 inches by late tuesday and remaining in place through 
wednesday.




lsz265-130800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt fri jun 12 2026

.late this afternoon...west winds 20 to 30 knots. a slight chance
of showers. waves 3 to 5 feet occasionally to 7 feet. 
.tonight...southwest winds 15 to 25 knots. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.saturday...west winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.saturday night...west winds 15 to 25 knots. waves subsiding to
1 to 3 feet. 
.sunday...west winds 20 to 30 knots. waves building to 2 to
4 feet. 
.sunday night...west winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.monday...west winds 15 to 25 knots diminishing to 10 to 20 knots
by mid afternoon. waves calm to 2 feet. 
.monday night...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.tuesday...east winds 10 to 20 knots veering southwest. waves
calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots backing east. a
chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 122001
glfls 
expires:202606130800;;635367

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jun 12 2026

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

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

.synopsis... 

troughing progressively weakens to 29.7 inches over lake superior 
tonight through saturday midday, and further to 29.8 early sunday. a 
29.7 inch trough moves through the lake sunday night before 29.8 
inch ridging pushes back in on monday. troughing to 29.7 inches 
occurs again on monday before deepening beginning tuesday morning, 
reaching 29.6 inches by late tuesday and remaining in place through 
wednesday.




lsz266-130800-
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-
400 pm edt fri jun 12 2026

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

$$

fzus63 kmqt 122001
glfls 
expires:202606130800;;635368

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jun 12 2026

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

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

.synopsis... 

troughing progressively weakens to 29.7 inches over lake superior 
tonight through saturday midday, and further to 29.8 early sunday. a 
29.7 inch trough moves through the lake sunday night before 29.8 
inch ridging pushes back in on monday. troughing to 29.7 inches 
occurs again on monday before deepening beginning tuesday morning, 
reaching 29.6 inches by late tuesday and remaining in place through 
wednesday.




lsz267-130800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt fri jun 12 2026

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

$$

fzus63 kmqt 122001
glfls 
expires:202606130800;;635363

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jun 12 2026

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

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

.synopsis... 

troughing progressively weakens to 29.7 inches over lake superior 
tonight through saturday midday, and further to 29.8 early sunday. a 
29.7 inch trough moves through the lake sunday night before 29.8 
inch ridging pushes back in on monday. troughing to 29.7 inches 
occurs again on monday before deepening beginning tuesday morning, 
reaching 29.6 inches by late tuesday and remaining in place through 
wednesday.




lsz162-130800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt fri jun 12 2026 /300 pm cdt fri jun 12 2026/

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

$$

fzus63 kmqt 122001
glfls 
expires:202606130800;;635364

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jun 12 2026

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

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

.synopsis... 

troughing progressively weakens to 29.7 inches over lake superior 
tonight through saturday midday, and further to 29.8 early sunday. a 
29.7 inch trough moves through the lake sunday night before 29.8 
inch ridging pushes back in on monday. troughing to 29.7 inches 
occurs again on monday before deepening beginning tuesday morning, 
reaching 29.6 inches by late tuesday and remaining in place through 
wednesday.




lsz263-130800-
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-
400 pm edt fri jun 12 2026

.late this afternoon...southwest winds 15 to 25 knots. a slight
chance of showers. waves 4 to 7 feet occasionally to 9 feet. 
.tonight...southwest winds 15 to 25 knots diminishing to 10 to
20 knots after midnight, then increasing to 15 to 25 knots late.
a slight chance of showers through midnight. waves subsiding to
2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet.
.saturday...west winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon, then diminishing to 15 to 25 knots
late. waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday night...west winds 10 to 20 knots. waves subsiding to
2 to 4 feet. 
.sunday...west winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.sunday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...west winds 10 to 20 knots backing southwest by mid
afternoon. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.monday night...southwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.tuesday...west winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots becoming north 10 to
20 knots. a chance of rain showers. waves calm to 2 feet. 

$$