fzus63 kdtx 160746
glflh 
expires:202606161600;;829524

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 am edt tue jun 16 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...the arrival of a low pressure system and its 
attendant cold front lead to showers and thunderstorms beginning 
this 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.


lhz361-161600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
346 am edt tue jun 16 2026

.today...south winds 5 to 10 knots backing to the east in the
afternoon. showers likely and a chance of thunderstorms in the
afternoon. waves 1 to 3 feet. 
.tonight...southeast winds 5 to 10 knots. a chance of showers in
the evening. waves 1 to 3 feet. 
.wednesday...light and variable winds becoming southeast 5 to
10 knots early in the afternoon. waves 2 feet or less. 
.wednesday night...east winds 5 to 10 knots increasing to 10 to
15 knots. showers. waves 1 to 3 feet building to 4 to 6 feet in
the late evening and overnight. waves occasionally around 8 feet.
.thursday...northeast winds 10 to 15 knots becoming west 15 to
20 knots. showers in the morning...then a chance of showers late
in the morning. waves 5 to 7 feet. waves occasionally around
10 feet. 
.friday...west winds 15 to 20 knots. waves 4 to 6 feet. 
.saturday...west winds 15 to 20 knots decreasing to 5 to
10 knots. waves 3 to 5 feet. waves occasionally around 8 feet. 


$$

fzus63 kdtx 160746
glflh 
expires:202606161600;;829525

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 am edt tue jun 16 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...the arrival of a low pressure system and its 
attendant cold front lead to showers and thunderstorms beginning 
this 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.


lhz362-363-161600-
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-
346 am edt tue jun 16 2026

.today...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
afternoon. 
.tonight...south winds 10 to 15 knots decreasing to 5 to 10 knots
early in the morning. a chance of showers in the evening. waves
2 to 4 feet. 
.wednesday...south winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. waves 1 to 3 feet. 
.wednesday night...southeast winds 10 to 15 knots becoming east
15 to 20 knots after midnight. showers. waves 2 to 4 feet
building to 6 to 9 feet. waves occasionally around 12 feet. 
.thursday...north winds 10 to 15 knots becoming west 15 to
20 knots late in the morning...then decreasing to 10 to 15 knots
late in the afternoon increasing to 15 to 20 knots late in the
evening. showers in the morning...then a chance of showers late
in the morning. waves 6 to 9 feet. waves occasionally around
12 feet. 
.friday...west winds 10 to 15 knots becoming northwest 15 to
20 knots . waves 5 to 7 feet. waves occasionally around 10 feet. 
.saturday...west winds 15 to 20 knots becoming northwest 5 to
10 knots. waves 4 to 6 feet. waves occasionally around 8 feet. 


$$

fzus63 kdtx 160746
glflh 
expires:202606161600;;829526

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 am edt tue jun 16 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...the arrival of a low pressure system and its 
attendant cold front lead to showers and thunderstorms beginning 
this 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>464-161600-
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-
346 am edt tue jun 16 2026

.today...south winds 10 to 15 knots. a chance of showers and
thunderstorms in the afternoon. waves 1 to 3 feet. 
.tonight...south winds 10 to 15 knots. showers likely and a
chance of thunderstorms in the evening. waves 1 to 3 feet. 
.wednesday...south winds 5 to 10 knots. a chance of showers in
the afternoon. waves 1 to 3 feet. 
.wednesday night...south winds 10 to 15 knots becoming southeast
20 to 25 knots with gusts to around 30 knots by midnight...then
becoming east 15 to 20 knots with gusts to around 30 knots after
midnight. a chance of showers in the evening...then showers after
midnight. waves 1 to 3 feet building to 6 to 9 feet in the late
evening and overnight. waves occasionally around 12 feet. 
.thursday...south winds 15 to 20 knots veering to the west late
in the morning...then decreasing to 10 to 15 knots late in the
afternoon. a chance of showers. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.friday...west winds 10 to 15 knots. waves 2 to 4 feet. 
.saturday...west winds 10 to 15 knots decreasing to 5 to 10 knots
early in the evening...then veering to the west 5 to 10 knots by
midnight. waves 2 to 4 feet subsiding to 1 to 3 feet. 


$$

fzus63 kmkx 160823
glflm 
expires:202606161530;;831171

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
323 am cdt tue jun 16 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...

breezy southwesterly winds will shift southerly early today as a 
low pressure system deepens over northern lake michigan (29.5 
inches). showers and thunderstorms will be possible across the 
lake throughout today. a couple of stronger cells this afternoon 
could produce small hail. 

a weak surface ridge will cross the lake tonight, with winds 
subsiding and veering to the west. a stronger low pressure system
(29.2 inches) will then track eastward from around south dakota, 
crossing lake michigan wednesday evening. ahead of the low, expect
gusty southeast winds wednesday morning and afternoon 
(particularly over the southern half of the lake) with increasing 
chances for thunderstorms, some of which could be strong 
(particularly over far southern portions of the lake). breezy west
to northwest winds are expected wednesday night into thursday as 
the low exits east. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-161530-
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-
323 am cdt tue jun 16 2026

sheboygan wi to pentwater mi south...

.today...southwest winds 15 to 25 kt increasing to 30 kt. chance
of showers and slight chance of thunderstorms. waves 4 to 7 ft
occasionally to 9 ft. 
.tonight...west winds 15 to 25 kt diminishing to 10 to 20 kt.
slight chance of showers and thunderstorms in the evening. waves
4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt late in the morning, then becoming southeast to 30 kt in
the afternoon. chance of showers in the morning, then showers in
the afternoon. waves 2 to 4 ft building to 5 to 8 ft occasionally
to 10 ft. 
.wednesday night...southeast winds to 30 kt veering to west.
showers with a chance of thunderstorms in the evening, then
chance of showers overnight. waves 5 to 8 ft occasionally to
10 ft. 
.thursday...west winds to 30 kt becoming northwest 15 to 25 kt.
waves 6 to 9 ft occasionally to 12 ft. 
.thursday night...west winds 10 to 20 kt. waves 3 to 5 ft. 
.friday...west winds 10 to 20 kt. waves 3 to 5 ft. 
.saturday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 160823
glflm 
expires:202606161530;;831170

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
323 am cdt tue jun 16 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...

breezy southwesterly winds will shift southerly early today as a 
low pressure system deepens over northern lake michigan (29.5 
inches). showers and thunderstorms will be possible across the 
lake throughout today. a couple of stronger cells this afternoon 
could produce small hail. 

a weak surface ridge will cross the lake tonight, with winds 
subsiding and veering to the west. a stronger low pressure system
(29.2 inches) will then track eastward from around south dakota, 
crossing lake michigan wednesday evening. ahead of the low, expect
gusty southeast winds wednesday morning and afternoon 
(particularly over the southern half of the lake) with increasing 
chances for thunderstorms, some of which could be strong 
(particularly over far southern portions of the lake). breezy west
to northwest winds are expected wednesday night into thursday as 
the low exits east. 


lmz261-362-364-366-563-565-567-868-161530-
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-
323 am cdt tue jun 16 2026

sheboygan wi to pentwater mi north...

.today...south winds 10 to 20 kt increasing to 30 kt, then
becoming southwest 15 to 25 kt late. slight chance of showers
this morning, then chance of showers and slight chance of
thunderstorms this afternoon. waves 3 to 5 ft building to 4 to
6 ft occasionally to 8 ft. 
.tonight...west winds 10 to 20 kt becoming northwest 10 to 15 kt.
slight chance of showers in the evening. waves 4 to 6 ft
occasionally to 8 ft subsiding to 1 to 3 ft. 
.wednesday...west winds 5 to 10 kt becoming south 10 to 20 kt
late in the morning, then increasing to 15 to 25 kt early in the
afternoon increasing to 30 kt late. chance of showers. waves 1 to
3 ft building to 4 to 7 ft occasionally to 9 ft. 
.wednesday night...east winds to 30 kt becoming northeast 15 to
25 kt. showers. waves 5 to 8 ft occasionally to 10 ft. 
.thursday...northwest winds 15 to 25 kt becoming west 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.thursday night...west winds 15 to 25 kt diminishing to 10 to
20 kt. waves 2 to 4 ft. 
.friday...northwest winds 15 to 25 kt becoming west. waves 2 to
4 ft. 
.saturday...west winds 10 to 20 kt becoming southwest. waves 1 to
3 ft.  

$$

fzus63 kmqt 160801
glfls 
expires:202606162000;;829856

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jun 16 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... 

29.6 inch troughing currently over the up and northern wi deepens to 
a 29.5 inch low over northeast wisconsin and the u.p. this afternoon 
before slowly moving east-northeast into ontario tonight into early 
wednesday morning. a low of 29.2 inches over the northern plains on 
wednesday morning then moves through lower michigan wednesday night 
before arriving into southern ontario early thursday morning. a 30.0 
inch high then develops over the plains thursday night before diving 
into the mid-mississippi valley friday night; this brings 29.9 inch 
ridging over lake superior by friday. the ridging strengthen 
slightly to around 30.0 inches over lake superior by saturday as the 
parent high meanders into the ohio river valley. 




lsz264-162000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt tue jun 16 2026

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

$$

fzus63 kmqt 160801
glfls 
expires:202606162000;;829857

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jun 16 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... 

29.6 inch troughing currently over the up and northern wi deepens to 
a 29.5 inch low over northeast wisconsin and the u.p. this afternoon 
before slowly moving east-northeast into ontario tonight into early 
wednesday morning. a low of 29.2 inches over the northern plains on 
wednesday morning then moves through lower michigan wednesday night 
before arriving into southern ontario early thursday morning. a 30.0 
inch high then develops over the plains thursday night before diving 
into the mid-mississippi valley friday night; this brings 29.9 inch 
ridging over lake superior by friday. the ridging strengthen 
slightly to around 30.0 inches over lake superior by saturday as the 
parent high meanders into the ohio river valley. 




lsz265-162000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt tue jun 16 2026

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...east winds 5 to 15 knots backing north late. a slight
chance of showers. a slight chance of thunderstorms by mid
afternoon. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots backing southwest late. waves
calm to 2 feet. 
.wednesday...southeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon. a slight chance of showers by mid
afternoon. waves calm to 2 feet. 
.wednesday night...east winds 10 to 20 knots becoming northwest
15 to 25 knots after midnight. showers likely through midnight,
then a chance of showers after midnight. waves building to 1 to
3 feet. 
.thursday...northwest winds 15 to 25 knots becoming west 20 to
30 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.thursday night...west winds 15 to 25 knots. waves 2 to 4 feet. 
.friday...west winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.saturday...west winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202606162000;;829858

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jun 16 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... 

29.6 inch troughing currently over the up and northern wi deepens to 
a 29.5 inch low over northeast wisconsin and the u.p. this afternoon 
before slowly moving east-northeast into ontario tonight into early 
wednesday morning. a low of 29.2 inches over the northern plains on 
wednesday morning then moves through lower michigan wednesday night 
before arriving into southern ontario early thursday morning. a 30.0 
inch high then develops over the plains thursday night before diving 
into the mid-mississippi valley friday night; this brings 29.9 inch 
ridging over lake superior by friday. the ridging strengthen 
slightly to around 30.0 inches over lake superior by saturday as the 
parent high meanders into the ohio river valley. 




lsz266-162000-
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 tue jun 16 2026

.early this morning...southwest winds 5 to 15 knots. a slight
chance of rain showers. waves calm to 2 feet. 
.today...northeast winds 5 to 15 knots backing north late. a
slight chance of showers and thunderstorms by mid afternoon.
waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots backing west late. a
slight chance of rain showers through midnight. waves calm to
2 feet. 
.wednesday...south winds 5 to 15 knots backing east late. a
slight chance of rain showers by mid afternoon. waves calm to
2 feet. 
.wednesday night...east winds 10 to 20 knots backing north after
midnight. rain showers likely through midnight, then a chance of
rain showers after midnight. waves building to 2 to 4 feet. 
.thursday...northwest winds 20 to 30 knots. waves building to
3 to 6 feet occasionally to 8 feet. 
.thursday night...northwest winds 20 to 30 knots. waves 3 to
5 feet occasionally to 7 feet. 
.friday...west winds 15 to 25 knots. waves building to 3 to
6 feet occasionally to 8 feet, then subsiding to 1 to 3 feet. 
.saturday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202606162000;;829859

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jun 16 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... 

29.6 inch troughing currently over the up and northern wi deepens to 
a 29.5 inch low over northeast wisconsin and the u.p. this afternoon 
before slowly moving east-northeast into ontario tonight into early 
wednesday morning. a low of 29.2 inches over the northern plains on 
wednesday morning then moves through lower michigan wednesday night 
before arriving into southern ontario early thursday morning. a 30.0 
inch high then develops over the plains thursday night before diving 
into the mid-mississippi valley friday night; this brings 29.9 inch 
ridging over lake superior by friday. the ridging strengthen 
slightly to around 30.0 inches over lake superior by saturday as the 
parent high meanders into the ohio river valley. 




lsz267-162000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt tue jun 16 2026

.early this morning...south winds 5 to 15 knots. waves calm to
2 feet. 
.today...southeast winds 5 to 15 knots backing east in the
afternoon, then backing north late. a slight chance of showers
and thunderstorms by mid afternoon. waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots. a slight chance of rain
showers. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing east in the
afternoon. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots becoming north 10 to
20 knots after midnight. rain showers likely. waves building to
1 to 3 feet. 
.thursday...northwest winds 15 to 25 knots becoming west 20 to
30 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.thursday night...northwest winds 15 to 25 knots backing west
after midnight. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.friday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 1 to 3 feet. 
.saturday...west winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202606162000;;829854

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jun 16 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... 

29.6 inch troughing currently over the up and northern wi deepens to 
a 29.5 inch low over northeast wisconsin and the u.p. this afternoon 
before slowly moving east-northeast into ontario tonight into early 
wednesday morning. a low of 29.2 inches over the northern plains on 
wednesday morning then moves through lower michigan wednesday night 
before arriving into southern ontario early thursday morning. a 30.0 
inch high then develops over the plains thursday night before diving 
into the mid-mississippi valley friday night; this brings 29.9 inch 
ridging over lake superior by friday. the ridging strengthen 
slightly to around 30.0 inches over lake superior by saturday as the 
parent high meanders into the ohio river valley. 




lsz162-162000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt tue jun 16 2026 /300 am cdt tue jun 16 2026/

.early this morning...northwest winds 5 to 15 knots. patchy fog.
a slight chance of rain showers. waves calm to 2 feet. 
.today...north winds 5 to 15 knots veering northeast in the
afternoon, then veering south late. a slight chance of rain
showers through early afternoon. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots becoming north less than
10 knots after midnight, then veering south late. a slight chance
of rain showers after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots increasing to 15 to
25 knots in the afternoon, then backing northeast late. a chance
of rain showers. waves building to 2 to 4 feet. 
.wednesday night...northeast winds 15 to 25 knots becoming west
10 to 20 knots after midnight. a chance of rain showers. waves
subsiding to calm to 2 feet. 
.thursday...west winds 10 to 20 knots. waves calm to 2 feet. 
.thursday night...northwest winds 10 to 20 knots backing west
after midnight. waves calm to 2 feet. 
.friday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots veering northeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 160801
glfls 
expires:202606162000;;829855

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jun 16 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... 

29.6 inch troughing currently over the up and northern wi deepens to 
a 29.5 inch low over northeast wisconsin and the u.p. this afternoon 
before slowly moving east-northeast into ontario tonight into early 
wednesday morning. a low of 29.2 inches over the northern plains on 
wednesday morning then moves through lower michigan wednesday night 
before arriving into southern ontario early thursday morning. a 30.0 
inch high then develops over the plains thursday night before diving 
into the mid-mississippi valley friday night; this brings 29.9 inch 
ridging over lake superior by friday. the ridging strengthen 
slightly to around 30.0 inches over lake superior by saturday as the 
parent high meanders into the ohio river valley. 




lsz263-162000-
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 tue jun 16 2026

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

$$