fzus61 kbuf 120802
glflo 
expires:202606121500;;607815

open lake forecast for lake ontario
national weather service buffalo ny
402 am 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 cold front will cross the lake between this 
morning and early this afternoon, with a 30.0 inch high then ridging 
across the lower great lakes tonight through sunday morning, before 
a another cold front crosses the region later sunday or sunday 
night. the eastern edge of a 30.1 inch high over the plains states 
will push over the lake on monday, then a trough averaging 29.8 
inches will cross the lake on tuesday.


loz063>065-121500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt fri jun 12 2026

.today...south winds 10 to 15 knots becoming west and increasing
to 15 to 25 knots. a chance of showers and thunderstorms. waves
2 feet or less building to 3 to 6 feet. 
.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 becoming southwest. 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 15 to
20 knots. showers with a chance of thunderstorms during the day,
then showers sunday night. waves 1 to 3 feet building to 3 to
5 feet. 
.monday...west winds 15 to 20 knots becoming southwest 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...southwest winds 5 to 10 knots becoming south. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 120802
glflo 
expires:202606121500;;607814

open lake forecast for lake ontario
national weather service buffalo ny
402 am 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 cold front will cross the lake between this 
morning and early this afternoon, with a 30.0 inch high then ridging 
across the lower great lakes tonight through sunday morning, before 
a another cold front crosses the region later sunday or sunday 
night. the eastern edge of a 30.1 inch high over the plains states 
will push over the lake on monday, then a trough averaging 29.8 
inches will cross the lake on tuesday.


loz062-121500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt fri jun 12 2026

.today...south winds 10 to 15 knots becoming west 15 to 20 knots.
waves 1 to 3 feet building to 3 to 5 feet. 
.tonight...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...west winds 10 to 15 knots becoming southwest. waves
1 to 3 feet. 
.saturday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 1 to 3 feet. 
.sunday...southwest winds 15 to 20 knots becoming west. showers
with a chance of thunderstorms. waves 1 to 3 feet building to
2 to 4 feet. 
.monday...west winds 5 to 15 knots becoming southwest. waves 1 to
3 feet. 
.tuesday...west winds 5 to 10 knots becoming south. waves 1 foot
or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 120749
glfle 
expires:202606121430;;607419

open lake forecast for lake erie
national weather service cleveland oh
349 am 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 cold front currently over lake erie will exit to the east this
afternoon with a ridge averaging 30.00 inches building over the
lake in the front's wake through saturday. a cold front will move
east across the lake on sunday, followed by a ridge averaging 
30.00 inches monday into tuesday.


lez165>167-121430-
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-
349 am edt fri jun 12 2026

.today...southwest winds 15 to 20 knots becoming west 10 to
15 knots. a slight chance of showers early. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.tonight...southwest winds 10 to 15 knots becoming west. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...west winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.saturday night...south winds 5 to 15 knots becoming southwest. a
chance of showers overnight. waves 1 to 3 feet. 
.sunday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots. showers with a chance of thunderstorms during the day.
waves 2 to 4 feet. 
.monday...west winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. a chance of showers tuesday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 120749
glfle 
expires:202606121430;;607420

open lake forecast for lake erie
national weather service cleveland oh
349 am 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 cold front currently over lake erie will exit to the east this
afternoon with a ridge averaging 30.00 inches building over the
lake in the front's wake through saturday. a cold front will move
east across the lake on sunday, followed by a ridge averaging 
30.00 inches monday into tuesday.


lez061-168-169-121430-
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-
349 am edt fri jun 12 2026

.today...southwest winds 15 to 20 knots. a slight chance of
showers and thunderstorms early. waves 3 to 6 feet. 
.tonight...southwest winds 15 to 20 knots becoming west and
diminishing to around 10 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...southwest winds 5 to 15 knots becoming south.
waves 1 to 3 feet. 
.sunday...southwest winds 10 to 15 knots becoming northwest.
showers with a chance of thunderstorms during the day. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.monday...west winds 5 to 15 knots becoming southwest. waves 1 to
3 feet. 
.tuesday...southwest winds 5 to 15 knots becoming south. a chance
of showers tuesday night. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 120749
glfle 
expires:202606121430;;607418

open lake forecast for lake erie
national weather service cleveland oh
349 am 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 cold front currently over lake erie will exit to the east this
afternoon with a ridge averaging 30.00 inches building over the
lake in the front's wake through saturday. a cold front will move
east across the lake on sunday, followed by a ridge averaging 
30.00 inches monday into tuesday.


lez162>164-121430-
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-
349 am edt fri jun 12 2026

.today...west winds 15 to 20 knots diminishing to 10 to 15 knots.
a slight chance of showers early. waves 2 to 4 feet subsiding to
1 to 2 feet. 
.tonight...west winds 10 to 15 knots. waves 1 to 2 feet. 
.saturday...southwest winds 5 to 10 knots. waves 1 foot or less. 
.saturday night...southwest winds 10 to 15 knots. a chance of
showers overnight. waves 1 to 2 feet. 
.sunday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. showers with a chance of thunderstorms during the day.
waves 1 to 3 feet. 
.monday...west winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots. a chance of showers.
waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 120736
glfsc 
expires:202606121600;;607112

lake st clair forecast
national weather service detroit/pontiac mi
336 am 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 29.20 inches, over eastern
ontario will pull a cold front through the rest of the eastern
lakes early this morning. a second front will pass through the
area early sunday morning.


lcz460-121600-
lake st clair-
336 am edt fri jun 12 2026

.today...west winds 15 to 20 knots diminishing to 10 to 15 knots in
the afternoon. mostly sunny. waves 1 to 3 feet.
.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 15 to 20
knots. 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. partly cloudy
becoming mostly cloudy. a chance of light showers after midnight.
waves 1 to 3 feet.
.sunday...west winds 10 to 15 knots becoming northwest 15 to 20
knots in the afternoon and evening. light showers and a chance of
thunderstorms...then mostly clear in the evening. waves 1 to 3 feet.
.monday...west winds 10 to 15 knots. mostly clear. waves 2 feet or
less.
.tuesday...southwest winds 10 to 15 knots. mostly clear. a chance of
showers. waves 2 feet or less.

$$

fzus63 kdtx 120736
glflh 
expires:202606121600;;607098

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 am 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 29.20 inches, over eastern
ontario will pull a cold front through the rest of the eastern
lakes early this morning. a second front will pass through the
area early sunday morning.


lhz361-362-121600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
336 am edt fri jun 12 2026

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


$$

fzus63 kdtx 120736
glflh 
expires:202606121600;;607099

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 am 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 29.20 inches, over eastern
ontario will pull a cold front through the rest of the eastern
lakes early this morning. a second front will pass through the
area early sunday morning.


lhz363-121600-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
336 am edt fri jun 12 2026

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


$$

fzus63 kdtx 120736
glflh 
expires:202606121600;;607100

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 am 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 29.20 inches, over eastern
ontario will pull a cold front through the rest of the eastern
lakes early this morning. a second front will pass through the
area early sunday morning.


lhz462>464-121600-
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-
336 am edt fri jun 12 2026

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


$$

fzus63 kmkx 120829
glflm 
expires:202606121515;;609225

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
329 am 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...

modest to breezy west winds are through this morning behind the
departing low pressure and cold front. expect winds to become 
southwest this afternoon into saturday in advance of a cold front
passage. scattered showers and thunderstorms are expected with 
the frontal passage tomorrow. modest northwest winds are likely
behind the front saturday night, continuing through sunday 
morning.


lmz261-362-364-366-563-565-567-868-121515-
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-
329 am cdt fri jun 12 2026

sheboygan wi to pentwater mi north...

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

$$

fzus63 kmkx 120829
glflm 
expires:202606121515;;609226

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
329 am 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...

modest to breezy west winds are through this morning behind the
departing low pressure and cold front. expect winds to become 
southwest this afternoon into saturday in advance of a cold front
passage. scattered showers and thunderstorms are expected with 
the frontal passage tomorrow. modest northwest winds are likely
behind the front saturday night, continuing through sunday 
morning.


lmz080-669-671-673-675-777-779-870-872-874-876-878-121515-
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-
329 am cdt fri jun 12 2026

sheboygan wi to pentwater mi south...

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

$$

fzus63 kmqt 120801
glfls 
expires:202606122000;;607610

open lake forecast for lake superior
national weather service marquette mi
400 am 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 today through 
saturday afternoon. weak ridging of 29.8 inches returns to lake 
superior on sunday. a 29.7 inch trough moves through the lake sunday 
night before 29.8 inch ridging pushes back in on monday. 




lsz266-122000-
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 am edt fri jun 12 2026

.early this morning...west winds 20 to 30 knots. patchy fog. a
slight chance of showers. waves 3 to 5 feet occasionally to
7 feet. 
.today...west winds 15 to 25 knots. a slight chance of showers by
mid afternoon. waves building to 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. 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 10 to 20 knots increasing to 15 to
25 knots after midnight. 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 becoming southwest 5 to
15 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. 

$$

fzus63 kmqt 120801
glfls 
expires:202606122000;;607611

open lake forecast for lake superior
national weather service marquette mi
400 am 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 today through 
saturday afternoon. weak ridging of 29.8 inches returns to lake 
superior on sunday. a 29.7 inch trough moves through the lake sunday 
night before 29.8 inch ridging pushes back in on monday. 




lsz267-122000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt fri jun 12 2026

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

$$

fzus63 kmqt 120801
glfls 
expires:202606122000;;607607

open lake forecast for lake superior
national weather service marquette mi
400 am 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 today through 
saturday afternoon. weak ridging of 29.8 inches returns to lake 
superior on sunday. a 29.7 inch trough moves through the lake sunday 
night before 29.8 inch ridging pushes back in on monday. 




lsz263-122000-
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 am edt fri jun 12 2026

.early this morning...west winds 15 to 25 knots. waves 3 to
6 feet occasionally to 8 feet. 
.today...southwest winds 20 to 30 knots. waves building to 4 to
8 feet occasionally to 10 feet. 
.tonight...southwest winds 15 to 25 knots diminishing to 10 to
20 knots after midnight, then increasing to 15 to 25 knots late.
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. 
.sunday night...west winds 10 to 20 knots. waves subsiding to
1 to 3 feet. 
.monday...west winds 10 to 20 knots becoming southwest 5 to
15 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.tuesday...southwest winds 5 to 15 knots backing south. waves
calm to 2 feet. 

$$

fzus63 kmqt 120801
glfls 
expires:202606122000;;607608

open lake forecast for lake superior
national weather service marquette mi
400 am 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 today through 
saturday afternoon. weak ridging of 29.8 inches returns to lake 
superior on sunday. a 29.7 inch trough moves through the lake sunday 
night before 29.8 inch ridging pushes back in on monday. 




lsz264-122000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt fri jun 12 2026

.early this morning...west winds 15 to 25 knots. patchy fog. a
slight chance of showers. waves 3 to 6 feet occasionally to
8 feet. 
.today...west winds 15 to 25 knots becoming southwest to 30 knots
with a few gale force gusts to 35 knots possible in the
afternoon, then diminishing to 20 to 30 knots late. a slight
chance of showers by mid afternoon. waves building to 4 to 8 feet
occasionally to 10 feet. 
.tonight...southwest winds 15 to 25 knots diminishing to 10 to
20 knots after midnight, then increasing to 15 to 25 knots late.
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 becoming west 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. 
.sunday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves building to 2 to 4 feet, then subsiding to calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots backing south. waves
calm to 2 feet. 

$$

fzus63 kmqt 120801
glfls 
expires:202606122000;;607606

open lake forecast for lake superior
national weather service marquette mi
400 am 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 today through 
saturday afternoon. weak ridging of 29.8 inches returns to lake 
superior on sunday. a 29.7 inch trough moves through the lake sunday 
night before 29.8 inch ridging pushes back in on monday. 




lsz162-122000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt fri jun 12 2026 /300 am cdt fri jun 12 2026/

.early this morning...southwest winds 15 to 25 knots. waves 2 to
4 feet. 
.today...southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 
.saturday...west winds 15 to 25 knots. 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 after midnight. waves subsiding to calm to 2 feet. 
.sunday...west winds 15 to 25 knots. waves 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 diminishing to 5 to 15 knots.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots backing northeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 120801
glfls 
expires:202606122000;;607609

open lake forecast for lake superior
national weather service marquette mi
400 am 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 today through 
saturday afternoon. weak ridging of 29.8 inches returns to lake 
superior on sunday. a 29.7 inch trough moves through the lake sunday 
night before 29.8 inch ridging pushes back in on monday. 




lsz265-122000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt fri jun 12 2026

.early this morning...west winds 20 to 30 knots. a slight chance
of showers. waves 2 to 4 feet. 
.today...west winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon. a slight chance of showers by mid afternoon.
waves subsiding to 1 to 3 feet, then building to 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 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 10 to 20 knots backing southwest. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.tuesday...southwest winds 10 to 20 knots backing south. waves
calm to 2 feet. 

$$