fzus63 kdtx 250134
glflh 
expires:202608250945;;309445

open lake forecast for lake huron
national weather service detroit/pontiac mi
934 pm edt mon aug 24 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...high pressure, 30.10 inches, will begin to work in
across the great lakes tonight through tomorrow. this will bring
lighter winds and dry weather to the area. a cold front will then
move through on wednesday, bringing elevated winds across lake
huron along with increasing chances for rain showers and
thunderstorms.


lhz362-363-250945-
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-
934 pm edt mon aug 24 2026

.rest of tonight...northwest winds 10 to 15 knots decreasing to
5 to 10 knots early in the morning. waves 3 to 5 feet. 
.tuesday...northwest winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.tuesday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots in the late evening and overnight. waves 2 feet or
less. 
.wednesday...south winds 10 to 15 knots increasing to 15 to
20 knots early in the afternoon. showers likely and a chance of
thunderstorms in the afternoon. waves 1 to 3 feet building to
3 to 5 feet in the late morning and afternoon. 
.wednesday night...south winds 10 to 15 knots veering to the
southwest after midnight. showers likely and a chance of
thunderstorms in the evening. waves 3 to 5 feet. 
.thursday...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then becoming northwest 10 to 15 knots late
in the afternoon. waves 1 to 3 feet building to 2 to 4 feet late
in the afternoon. 
.friday...north winds 10 to 15 knots becoming light and variable.
waves 1 to 3 feet. 
.saturday...south winds 5 to 10 knots increasing to 10 to
15 knots by midnight. waves 2 feet or less. 


$$

fzus63 kdtx 250134
glflh 
expires:202608250945;;309444

open lake forecast for lake huron
national weather service detroit/pontiac mi
934 pm edt mon aug 24 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...high pressure, 30.10 inches, will begin to work in
across the great lakes tonight through tomorrow. this will bring
lighter winds and dry weather to the area. a cold front will then
move through on wednesday, bringing elevated winds across lake
huron along with increasing chances for rain showers and
thunderstorms.


lhz361-250945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
934 pm edt mon aug 24 2026

.rest of tonight...northwest winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. waves 1 to 3 feet. 
.tuesday...light and variable winds. waves 2 feet or less. 
.tuesday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots after midnight. waves 2 feet or less. 
.wednesday...south winds 10 to 15 knots decreasing to 5 to
10 knots early in the afternoon. a chance of showers in the
morning...then showers and a chance of thunderstorms in the
afternoon. waves 1 to 3 feet. 
.wednesday night...southwest winds 5 to 10 knots becoming west
10 to 15 knots after midnight. showers and a chance of
thunderstorms in the evening. waves 1 to 3 feet. 
.thursday...west winds 10 to 15 knots becoming northwest 15 to
20 knots late in the afternoon...then decreasing to 10 to
15 knots late in the evening. waves 1 to 3 feet building to 2 to
4 feet late in the afternoon. 
.friday...northwest winds 5 to 10 knots backing to the west early
in the evening...then becoming light and variable by midnight.
waves 2 feet or less. 
.saturday...south winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kdtx 250134
glflh 
expires:202608250945;;309446

open lake forecast for lake huron
national weather service detroit/pontiac mi
934 pm edt mon aug 24 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...high pressure, 30.10 inches, will begin to work in
across the great lakes tonight through tomorrow. this will bring
lighter winds and dry weather to the area. a cold front will then
move through on wednesday, bringing elevated winds across lake
huron along with increasing chances for rain showers and
thunderstorms.


lhz462>464-250945-
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-
934 pm edt mon aug 24 2026

.rest of tonight...northwest winds 10 to 15 knots. waves 3 to
5 feet. 
.tuesday...northwest winds 5 to 10 knots until late afternoon
becoming light and variable. waves 2 to 4 feet subsiding to 1 to
3 feet in the late morning and afternoon. 
.tuesday night...east winds 5 to 10 knots veering to the south by
midnight...then increasing to 10 to 15 knots after midnight.
waves 2 feet or less. 
.wednesday...south winds 10 to 15 knots. a chance of showers in
the afternoon. waves 1 to 3 feet building to 2 to 4 feet early in
the afternoon. 
.wednesday night...south winds 10 to 15 knots. showers and a
chance of thunderstorms in the evening. waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight. 
.thursday...southwest winds 10 to 15 knots becoming west 5 to
10 knots late in the morning...then veering to the north late in
the afternoon. waves 2 feet or less. 
.friday...northwest winds 10 to 15 knots becoming north 5 to
10 knots . waves 1 to 3 feet. 
.saturday...east winds 5 to 10 knots veering to the southeast
until early evening...then becoming south 10 to 15 knots by
midnight. waves 2 feet or less. 


$$

fzus63 kmkx 250200
glflm 
expires:202608250915;;310020

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
900 pm cdt mon aug 24 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure around 29.7 inches in western quebec will slow move
northeast tonight into tuesday morning. while this low pressure 
moves away so too will the high pressure around 30.1 inches 
centered over wisconsin this evening. winds will diminish as this 
high pressure moves east becoming light and variable tonight. as 
the high shifts east into michigan, light south to southwest winds
are expected across the lake.

heading into tuesday evening, a low pressure system around 29.7
inches from the northern plains will move eastward toward lake
superior. as the low continues east, an associated cold front will
move across lake michigan shift winds to the northwest late
wednesday afternoon/evening. breezy northwest winds are expected 
through wednesday night. showers and thunderstorms will accompany
the approaching/passing surface low and cold front. an isolated 
stronger storm with hail and gusty winds will be possible but
chances are low. high pressure around 30.1 inches will gradually 
build in from the northern plains behind this exiting low for
thursday and friday. light north to northeast winds are expected. 


lmz261-362-364-366-563-565-567-868-250915-
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-
900 pm cdt mon aug 24 2026

sheboygan wi to pentwater mi north...

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

$$

fzus63 kmkx 250200
glflm 
expires:202608250915;;310021

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
900 pm cdt mon aug 24 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure around 29.7 inches in western quebec will slow move
northeast tonight into tuesday morning. while this low pressure 
moves away so too will the high pressure around 30.1 inches 
centered over wisconsin this evening. winds will diminish as this 
high pressure moves east becoming light and variable tonight. as 
the high shifts east into michigan, light south to southwest winds
are expected across the lake.

heading into tuesday evening, a low pressure system around 29.7
inches from the northern plains will move eastward toward lake
superior. as the low continues east, an associated cold front will
move across lake michigan shift winds to the northwest late
wednesday afternoon/evening. breezy northwest winds are expected 
through wednesday night. showers and thunderstorms will accompany
the approaching/passing surface low and cold front. an isolated 
stronger storm with hail and gusty winds will be possible but
chances are low. high pressure around 30.1 inches will gradually 
build in from the northern plains behind this exiting low for
thursday and friday. light north to northeast winds are expected. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-250915-
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-
900 pm cdt mon aug 24 2026

sheboygan wi to pentwater mi south...

.rest of tonight...northeast winds 5 to 10 kt veering to
southwest. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.tuesday...south winds 5 to 10 kt increasing to 15 to 25 kt.
waves 1 ft or less building to 2 to 4 ft. 
.tuesday night...south winds 15 to 25 kt becoming southwest.
waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...southwest winds 15 to 25 kt. chance of showers in
the morning, then showers likely in the afternoon. waves 4 to
7 ft occasionally to 9 ft. 
.wednesday night...west winds 10 to 20 kt becoming northwest
10 to 15 kt. waves 2 to 4 ft. 
.thursday...northwest winds 10 to 20 kt becoming north. waves
2 to 4 ft. 
.thursday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft. 
.friday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.saturday...south winds 10 to 20 kt increasing to 30 kt. waves
1 to 3 ft building to 3 to 5 ft.  

$$

fzus63 kmqt 250201
glfls 
expires:202608250800;;310068

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon aug 24 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...

a 30.0 inch high pressure over the western great lakes will shift 
south to the lower peninsula of michigan on tuesday, building to 
30.1 inches. meanwhile, a 29.7 inch clipper low pressure over 
manitoba moves to western ontario on tuesday, weakening to 29.8 
inches. this clipper moves over lake superior by wednesday morning 
before lifting away towards james bay and northern quebec wednesday 
night into thursday morning. 30.1 inch high pressure ridging returns 
to lake superior by friday afternoon, building to 30.2 inches over 
the lower great lakes for saturday. 




lsz263-250800-
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-
1000 pm edt mon aug 24 2026

.rest of tonight...southeast winds 5 to 15 knots veering south
late. waves calm to 2 feet. 
.tuesday...south winds 5 to 15 knots backing east late. a chance
of showers. a chance of thunderstorms by mid afternoon. waves
calm to 2 feet. 
.tuesday night...south winds 5 to 15 knots veering southwest
after midnight, then becoming west 10 to 20 knots late. a chance
of showers and thunderstorms. waves calm to 2 feet. 
.wednesday...west winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. a slight chance of showers. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.wednesday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots. waves calm to
2 feet. 
.friday...south winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet. 

$$

fzus63 kmqt 250201
glfls 
expires:202608250800;;310069

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon aug 24 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...

a 30.0 inch high pressure over the western great lakes will shift 
south to the lower peninsula of michigan on tuesday, building to 
30.1 inches. meanwhile, a 29.7 inch clipper low pressure over 
manitoba moves to western ontario on tuesday, weakening to 29.8 
inches. this clipper moves over lake superior by wednesday morning 
before lifting away towards james bay and northern quebec wednesday 
night into thursday morning. 30.1 inch high pressure ridging returns 
to lake superior by friday afternoon, building to 30.2 inches over 
the lower great lakes for saturday. 




lsz264-250800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt mon aug 24 2026

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

$$

fzus63 kmqt 250201
glfls 
expires:202608250800;;310070

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon aug 24 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...

a 30.0 inch high pressure over the western great lakes will shift 
south to the lower peninsula of michigan on tuesday, building to 
30.1 inches. meanwhile, a 29.7 inch clipper low pressure over 
manitoba moves to western ontario on tuesday, weakening to 29.8 
inches. this clipper moves over lake superior by wednesday morning 
before lifting away towards james bay and northern quebec wednesday 
night into thursday morning. 30.1 inch high pressure ridging returns 
to lake superior by friday afternoon, building to 30.2 inches over 
the lower great lakes for saturday. 




lsz265-250800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt mon aug 24 2026

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

$$

fzus63 kmqt 250201
glfls 
expires:202608250800;;310071

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon aug 24 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...

a 30.0 inch high pressure over the western great lakes will shift 
south to the lower peninsula of michigan on tuesday, building to 
30.1 inches. meanwhile, a 29.7 inch clipper low pressure over 
manitoba moves to western ontario on tuesday, weakening to 29.8 
inches. this clipper moves over lake superior by wednesday morning 
before lifting away towards james bay and northern quebec wednesday 
night into thursday morning. 30.1 inch high pressure ridging returns 
to lake superior by friday afternoon, building to 30.2 inches over 
the lower great lakes for saturday. 




lsz266-250800-
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-
1000 pm edt mon aug 24 2026

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

$$

fzus63 kmqt 250201
glfls 
expires:202608250800;;310072

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon aug 24 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...

a 30.0 inch high pressure over the western great lakes will shift 
south to the lower peninsula of michigan on tuesday, building to 
30.1 inches. meanwhile, a 29.7 inch clipper low pressure over 
manitoba moves to western ontario on tuesday, weakening to 29.8 
inches. this clipper moves over lake superior by wednesday morning 
before lifting away towards james bay and northern quebec wednesday 
night into thursday morning. 30.1 inch high pressure ridging returns 
to lake superior by friday afternoon, building to 30.2 inches over 
the lower great lakes for saturday. 




lsz267-250800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt mon aug 24 2026

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

$$

fzus63 kmqt 250201
glfls 
expires:202608250800;;310067

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon aug 24 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...

a 30.0 inch high pressure over the western great lakes will shift 
south to the lower peninsula of michigan on tuesday, building to 
30.1 inches. meanwhile, a 29.7 inch clipper low pressure over 
manitoba moves to western ontario on tuesday, weakening to 29.8 
inches. this clipper moves over lake superior by wednesday morning 
before lifting away towards james bay and northern quebec wednesday 
night into thursday morning. 30.1 inch high pressure ridging returns 
to lake superior by friday afternoon, building to 30.2 inches over 
the lower great lakes for saturday. 




lsz162-250800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt mon aug 24 2026 /900 pm cdt mon aug 24 2026/

.rest of tonight...east winds 5 to 15 knots. a slight chance of
showers after midnight. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots. a chance of showers and
thunderstorms. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots veering west after
midnight, then increasing to 10 to 20 knots late. a chance of
thunderstorms through midnight. a chance of showers. waves calm
to 2 feet. 
.wednesday...west winds 10 to 20 knots. a slight chance of
showers. waves calm to 2 feet. 
.wednesday night...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.thursday...northwest winds 5 to 15 knots backing southwest by
mid afternoon. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet. 

$$