fzus63 kdtx 150716
glflh 
expires:202606151530;;774935

open lake forecast for lake huron
national weather service detroit/pontiac mi
316 am edt mon jun 15 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...breezy conditions persist this week, but dry weather
should prevail through at least tuesday morning. the arrival of a
low pressure system and it's attendant cold front lead to showers
and thunderstorms beginning tuesday afternoon for the central
waterways. a brief break in activity ensues wednesday, followed
by a secondary stronger system wednesday night into thursday.
more intense convection is possible with the wednesday night
system.


lhz361-151530-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
316 am edt mon jun 15 2026

.today...west winds 5 to 10 knots backing to the south late in
the afternoon. waves 1 to 3 feet. 
.tonight...south winds 5 to 10 knots. waves 1 to 3 feet. 
.tuesday...southwest winds 5 to 10 knots backing to the southeast
in the late morning and afternoon. a chance of showers in the
morning...then a chance of showers and thunderstorms in the
afternoon. waves 1 to 3 feet. 
.tuesday night...south winds 5 to 10 knots. a chance of showers
and thunderstorms in the evening...then a chance of showers after
midnight. waves 1 to 3 feet. 
.wednesday...southwest winds 5 to 10 knots becoming east 15 to
20 knots late in the evening. showers likely late in the
afternoon. rain showers late in the evening. waves 1 to 3 feet
building to 4 to 6 feet late in the evening. waves occasionally
around 8 feet. 
.thursday...northeast winds 20 to 25 knots becoming north 15 to
20 knots in the late morning and early afternoon...then backing
to the west . showers early in the morning...then a chance of
showers in the late morning and early afternoon. waves 6 to
9 feet. waves occasionally around 12 feet. 
.friday...west winds 15 to 20 knots. waves 3 to 5 feet. 


$$

fzus63 kdtx 150716
glflh 
expires:202606151530;;774936

open lake forecast for lake huron
national weather service detroit/pontiac mi
316 am edt mon jun 15 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...breezy conditions persist this week, but dry weather
should prevail through at least tuesday morning. the arrival of a
low pressure system and it's attendant cold front lead to showers
and thunderstorms beginning tuesday afternoon for the central
waterways. a brief break in activity ensues wednesday, followed
by a secondary stronger system wednesday night into thursday.
more intense convection is possible with the wednesday night
system.


lhz362-363-151530-
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-
316 am edt mon jun 15 2026

.today...west winds 5 to 10 knots backing to the south early in
the afternoon...then increasing to 10 to 15 knots late in the
afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet in the late
morning and afternoon. 
.tonight...southeast winds 10 to 15 knots becoming south 5 to
10 knots late in the evening...then becoming southwest 10 to
15 knots after midnight. waves 1 to 3 feet. 
.tuesday...south winds 10 to 15 knots. a chance of showers in the
afternoon. waves 1 to 3 feet building to 2 to 4 feet in the late
morning and afternoon. 
.tuesday night...south winds 10 to 15 knots. a chance of showers
in the evening. waves 2 to 4 feet. 
.wednesday...southwest winds 5 to 10 knots becoming southeast
10 to 15 knots late in the afternoon...then increasing to 15 to
20 knots with gusts to around 30 knots late in the evening.
showers likely late in the afternoon. rain showers late in the
evening. waves 1 to 3 feet building to 6 to 9 feet. waves
occasionally around 12 feet. 
.thursday...east winds 20 to 25 knots with gusts to around
30 knots becoming north 15 to 20 knots in the late morning and
early afternoon...then backing to the west . showers early in the
morning...then a chance of showers in the late morning and early
afternoon. waves 6 to 9 feet. waves occasionally around 12 feet. 
.friday...west winds 10 to 15 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 


$$

fzus63 kdtx 150716
glflh 
expires:202606151530;;774937

open lake forecast for lake huron
national weather service detroit/pontiac mi
316 am edt mon jun 15 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...breezy conditions persist this week, but dry weather
should prevail through at least tuesday morning. the arrival of a
low pressure system and it's attendant cold front lead to showers
and thunderstorms beginning tuesday afternoon for the central
waterways. a brief break in activity ensues wednesday, followed
by a secondary stronger system wednesday night into thursday.
more intense convection is possible with the wednesday night
system.


lhz462>464-151530-
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-
316 am edt mon jun 15 2026

.today...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then backing to the southwest early in the
afternoon backing to the southeast late in the afternoon. waves
2 to 4 feet subsiding to 1 to 3 feet in the late morning and
afternoon. 
.tonight...south winds 5 to 10 knots becoming southwest 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet. 
.tuesday...south winds 10 to 15 knots. a chance of showers and
thunderstorms in the afternoon. waves 1 to 3 feet building to
2 to 4 feet early in the afternoon. 
.tuesday night...south winds 10 to 15 knots. showers likely.
waves 2 to 4 feet. 
.wednesday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then becoming southeast 20 to
25 knots with gusts to 35 knot gales late in the evening. showers
late in the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet
late in the morning...then building to 6 to 9 feet late in the
evening. waves occasionally around 12 feet. 
.thursday...southeast winds 20 to 25 knots with gusts to around
30 knots becoming west 15 to 20 knots with gusts to around
30 knots until early evening...then decreasing to 10 to 15 knots
by midnight. showers early in the morning. a chance of showers in
the late morning and early afternoon. waves 8 to 12 feet
subsiding to 4 to 6 feet by midnight. waves occasionally around
15 feet. 
.friday...west winds 10 to 15 knots decreasing to 5 to 10 knots
early in the evening...then increasing to 10 to 15 knots by
midnight. waves 2 to 4 feet subsiding to 1 to 3 feet . 


$$

fzus63 kmkx 150805
glflm 
expires:202606151530;;776275

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 am cdt mon jun 15 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...

southwest winds are expected today into tonight ahead of an 
approaching low. low pressure is then expected to deepen to 29.5 
inches over northern wisconsin on tuesday, then move across 
northern lake michigan into the early evening. this will bring 
breezy southerly winds to the lake on tuesday shifting west to 
northwest in the evening and overnight after the low passes. 
numerous showers and scattered thunderstorms are forecast over 
central and southern lake michigan on tuesday. 

on wednesday, low pressure around area 29.2 inches will move into
the upper mississippi river valley from the great plains. this
will bring breezy southeasterly winds to central and southern  
lake michigan wednesday afternoon and evening, with the low to 
then move across central lake michigan wednesday night. as low 
exits into thursday morning, expect winds to become northwesterly
and remain gusty across all open waters into thursday afternoon, 
before gradually diminishing. widespread rain and scattered
thunderstorms are forecast wednesday and wednesday night.


lmz080-669-671-673-675-777-779-870-872-874-876-878-151530-
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-
305 am cdt mon jun 15 2026

sheboygan wi to pentwater mi south...

.today...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft. 
.tonight...southwest winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to 30 kt.
showers likely in the morning, then showers likely with a chance
of thunderstorms in the afternoon. waves 3 to 5 ft building to
4 to 6 ft occasionally to 8 ft. 
.tuesday night...west winds to 30 kt diminishing to 10 to 20 kt
overnight. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.wednesday...southwest winds 10 to 15 kt becoming southeast to
30 kt in the afternoon. showers in the afternoon. waves 1 to 3 ft
building to 3 to 5 ft. 
.wednesday night...southeast gales to 35 kt veering to southwest
to 30 kt. showers with a chance of thunderstorms. waves 4 to 7 ft
occasionally to 9 ft. 
.thursday...northwest winds to 30 kt. waves 5 to 8 ft
occasionally to 10 ft. 
.friday...northwest winds 10 to 20 kt becoming west. waves 2 to
4 ft.  

$$

fzus63 kmkx 150805
glflm 
expires:202606151530;;776274

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 am cdt mon jun 15 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...

southwest winds are expected today into tonight ahead of an 
approaching low. low pressure is then expected to deepen to 29.5 
inches over northern wisconsin on tuesday, then move across 
northern lake michigan into the early evening. this will bring 
breezy southerly winds to the lake on tuesday shifting west to 
northwest in the evening and overnight after the low passes. 
numerous showers and scattered thunderstorms are forecast over 
central and southern lake michigan on tuesday. 

on wednesday, low pressure around area 29.2 inches will move into
the upper mississippi river valley from the great plains. this
will bring breezy southeasterly winds to central and southern  
lake michigan wednesday afternoon and evening, with the low to 
then move across central lake michigan wednesday night. as low 
exits into thursday morning, expect winds to become northwesterly
and remain gusty across all open waters into thursday afternoon, 
before gradually diminishing. widespread rain and scattered
thunderstorms are forecast wednesday and wednesday night.


lmz261-362-364-366-563-565-567-868-151530-
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-
305 am cdt mon jun 15 2026

sheboygan wi to pentwater mi north...

.today...southwest winds 10 to 20 kt becoming south 15 to 25 kt.
waves 2 to 4 ft. 
.tonight...southwest winds 15 to 25 kt diminishing to 10 to
20 kt. slight chance of showers in the evening. waves 2 to 4 ft. 
.tuesday...south winds 10 to 20 kt becoming southwest 15 to
25 kt. chance of showers. waves 3 to 5 ft building to 4 to 6 ft
occasionally to 8 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming northwest
10 to 15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to
2 to 4 ft. 
.wednesday...southwest winds 10 to 15 kt becoming south to 30 kt
in the afternoon. showers likely in the afternoon. waves 1 to
3 ft building to 3 to 5 ft. 
.wednesday night...southeast winds to 30 kt becoming northeast.
showers. waves 4 to 6 ft occasionally to 8 ft. 
.thursday...north winds to 30 kt becoming west. chance of
showers. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.friday...west winds 10 to 20 kt increasing to 15 to 25 kt. waves
2 to 4 ft.  

$$

fzus63 kmqt 150801
glfls 
expires:202606152000;;775994

open lake forecast for lake superior
national weather service marquette mi
400 am edt mon jun 15 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... 

weak 29.8 inch ridging over the lake this morning gives way to a 
29.6 inch trough moving through this evening into tuesday. this 
trough will deepen into a 29.5 inch low over northeast wisconsin 
tuesday. this low will then slowly move east-northeast into ontario 
through wednesday morning. a low of 29.4 inches then moves through 
the great lakes region wednesday night and thursday. 




lsz264-152000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt mon jun 15 2026

.early this morning...west winds 10 to 20 knots. waves 1 to
3 feet. 
.today...west winds 15 to 25 knots backing southwest in the
afternoon, then veering west late. a chance of showers and a
slight chance of thunderstorms by mid afternoon. waves building
to 3 to 5 feet occasionally to 7 feet. 
.tonight...southwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight, then veering north late. a slight chance
of rain showers through midnight. waves subsiding to calm to
2 feet. 
.tuesday...northeast winds 5 to 15 knots becoming west less than
10 knots late. a slight chance of rain showers through early
afternoon. waves calm to 2 feet. 
.tuesday night...west winds less than 10 knots backing southwest
after midnight. waves calm to 2 feet. 
.wednesday...south winds 5 to 15 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots backing northeast
after midnight. a chance of rain showers. waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots. waves calm to 2 feet. 
.friday...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. 

$$

fzus63 kmqt 150801
glfls 
expires:202606152000;;775995

open lake forecast for lake superior
national weather service marquette mi
400 am edt mon jun 15 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... 

weak 29.8 inch ridging over the lake this morning gives way to a 
29.6 inch trough moving through this evening into tuesday. this 
trough will deepen into a 29.5 inch low over northeast wisconsin 
tuesday. this low will then slowly move east-northeast into ontario 
through wednesday morning. a low of 29.4 inches then moves through 
the great lakes region wednesday night and thursday. 




lsz265-152000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt mon jun 15 2026

.early this morning...west winds 15 to 25 knots. waves calm to
2 feet. 
.today...west winds 15 to 25 knots diminishing to 10 to 20 knots
in the afternoon. waves building to 1 to 3 feet. 
.tonight...southwest winds 15 to 25 knots diminishing to 10 to
20 knots after midnight, then becoming west 5 to 15 knots late. a
slight chance of showers and thunderstorms through midnight.
waves subsiding to calm to 2 feet. 
.tuesday...north winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon, then diminishing to 5 to 15 knots late. a
slight chance of showers. a slight chance of thunderstorms by mid
afternoon. waves calm to 2 feet. 
.tuesday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.wednesday night...east winds 15 to 25 knots backing north after
midnight. showers likely through midnight, then a chance of
showers after midnight. waves building to 2 to 4 feet. 
.thursday...northwest winds 15 to 25 knots backing west. waves
subsiding to 1 to 3 feet. 
.friday...west winds 15 to 25 knots. waves subsiding to calm to
2 feet. 

$$

fzus63 kmqt 150801
glfls 
expires:202606152000;;775996

open lake forecast for lake superior
national weather service marquette mi
400 am edt mon jun 15 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... 

weak 29.8 inch ridging over the lake this morning gives way to a 
29.6 inch trough moving through this evening into tuesday. this 
trough will deepen into a 29.5 inch low over northeast wisconsin 
tuesday. this low will then slowly move east-northeast into ontario 
through wednesday morning. a low of 29.4 inches then moves through 
the great lakes region wednesday night and thursday. 




lsz266-152000-
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 mon jun 15 2026

.early this morning...southwest winds 10 to 20 knots. waves 1 to
3 feet. 
.today...west winds 15 to 25 knots becoming southwest 10 to
20 knots late. a slight chance of showers and thunderstorms by
mid afternoon. waves building to 3 to 5 feet occasionally to
7 feet. 
.tonight...southwest winds 10 to 20 knots becoming west 5 to
15 knots late. a slight chance of showers and thunderstorms
through midnight. waves subsiding to calm to 2 feet. 
.tuesday...north winds 5 to 15 knots. a slight chance of rain
showers. a slight chance of thunderstorms by mid afternoon. waves
calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots backing west after
midnight. a slight chance of rain showers through midnight. waves
calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.wednesday night...east winds 10 to 20 knots backing northeast
after midnight. a chance of rain showers. waves building to 2 to
4 feet. 
.thursday...northwest winds 15 to 25 knots backing west. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet. 
.friday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 150801
glfls 
expires:202606152000;;775997

open lake forecast for lake superior
national weather service marquette mi
400 am edt mon jun 15 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... 

weak 29.8 inch ridging over the lake this morning gives way to a 
29.6 inch trough moving through this evening into tuesday. this 
trough will deepen into a 29.5 inch low over northeast wisconsin 
tuesday. this low will then slowly move east-northeast into ontario 
through wednesday morning. a low of 29.4 inches then moves through 
the great lakes region wednesday night and thursday. 




lsz267-152000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt mon jun 15 2026

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds 10 to 20 knots veering west in the
afternoon, then becoming southwest 5 to 15 knots late. waves
building to 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots diminishing to 5 to
15 knots late. a slight chance of rain showers through midnight.
waves subsiding to calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots veering north in the
afternoon. a slight chance of showers. a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots. a slight chance
of thunderstorms through midnight. a slight chance of rain
showers. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight. a chance of rain showers through
midnight, then rain showers likely after midnight. waves building
to 1 to 3 feet. 
.thursday...northwest winds 15 to 25 knots backing west. a chance
of rain showers. waves building to 2 to 4 feet. 
.friday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 150801
glfls 
expires:202606152000;;775992

open lake forecast for lake superior
national weather service marquette mi
400 am edt mon jun 15 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... 

weak 29.8 inch ridging over the lake this morning gives way to a 
29.6 inch trough moving through this evening into tuesday. this 
trough will deepen into a 29.5 inch low over northeast wisconsin 
tuesday. this low will then slowly move east-northeast into ontario 
through wednesday morning. a low of 29.4 inches then moves through 
the great lakes region wednesday night and thursday. 




lsz162-152000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt mon jun 15 2026 /300 am cdt mon jun 15 2026/

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet. 
.today...southwest winds 15 to 25 knots. a chance of showers and
a slight chance of thunderstorms by mid afternoon. waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.tonight...southwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then veering north late. a slight chance
of thunderstorms through midnight. a chance of rain showers.
waves subsiding to calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots veering east in the
afternoon, then veering southwest late. a slight chance of
showers through early afternoon. waves calm to 2 feet. 
.tuesday night...south winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a chance of rain showers. waves
building to 1 to 3 feet. 
.wednesday night...northeast winds 15 to 25 knots becoming north
10 to 20 knots after midnight. a chance of rain showers. waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.thursday...west winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.friday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves calm to 2 feet. 

$$

fzus63 kmqt 150801
glfls 
expires:202606152000;;775993

open lake forecast for lake superior
national weather service marquette mi
400 am edt mon jun 15 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... 

weak 29.8 inch ridging over the lake this morning gives way to a 
29.6 inch trough moving through this evening into tuesday. this 
trough will deepen into a 29.5 inch low over northeast wisconsin 
tuesday. this low will then slowly move east-northeast into ontario 
through wednesday morning. a low of 29.4 inches then moves through 
the great lakes region wednesday night and thursday. 




lsz263-152000-
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 mon jun 15 2026

.early this morning...west winds 10 to 20 knots. waves 1 to
3 feet. 
.today...southwest winds 15 to 25 knots. a slight chance of
showers and thunderstorms by mid afternoon. waves building to
3 to 6 feet occasionally to 8 feet. 
.tonight...southwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then backing northeast late. a slight
chance of thunderstorms through midnight. a slight chance of rain
showers. waves subsiding to calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots veering southwest late.
a chance of rain showers through early afternoon. waves calm to
2 feet. 
.tuesday night...southwest winds 5 to 15 knots becoming south
less than 10 knots after midnight. waves calm to 2 feet. 
.wednesday...south winds 5 to 15 knots backing east by mid
afternoon. a chance of rain showers by mid afternoon. waves calm
to 2 feet. 
.wednesday night...northeast winds 10 to 20 knots. a chance of
rain showers. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.thursday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.friday...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. 

$$