fzus63 kdtx 081346
glflh 
expires:202608082200;;828220

open lake forecast for lake huron
national weather service detroit/pontiac mi
946 am edt sat aug 8 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...scattered showers and thunderstorms are possible today
as a cold front tracks through the central great lakes. winds
shift to the northwest and briefly top out at in 20 to 25 knot
range over northern lake huron late today into the evening. high
pressure, 30.00 inches, slides east through the ohio valley
saturday night, allowing winds to become southerly once again for
sunday.


lhz361-082200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
946 am edt sat aug 8 2026

.rest of today...west winds 10 to 20 knots with brief gusts to 25
knots. waves 1 to 3 feet.
.tonight...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the evening...then becoming light and variable after
midnight becoming southwest 5 to 10 knots early in the morning.
waves 1 to 3 feet. 
.sunday...south winds 5 to 10 knots. waves 2 feet or less. 
.sunday night...light and variable winds. a chance of showers.
waves 2 feet or less. 
.monday...west winds 5 to 10 knots becoming light and variable.
waves 2 feet or less. 
.tuesday...light and variable winds becoming west 5 to 10 knots .
waves 2 feet or less. 
.wednesday...west winds 5 to 10 knots early in the morning
becoming light and variable...then becoming west 5 to 10 knots .
waves 2 feet or less. 


$$

fzus63 kdtx 081346
glflh 
expires:202608082200;;828221

open lake forecast for lake huron
national weather service detroit/pontiac mi
946 am edt sat aug 8 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...scattered showers and thunderstorms are possible today
as a cold front tracks through the central great lakes. winds
shift to the northwest and briefly top out at in 20 to 25 knot
range over northern lake huron late today into the evening. high
pressure, 30.00 inches, slides east through the ohio valley
saturday night, allowing winds to become southerly once again for
sunday.


lhz362-363-082200-
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-
946 am edt sat aug 8 2026

.rest of today...southwest winds 10 to 15 knots becoming 
northwest late in the afternoon. a chance of showers late in the 
morning. waves 1 to 3 feet building to 2 to 4 feet late in the 
afternoon. 
.tonight...northwest winds 10 to 15 knots becoming north 5 to
10 knots late in the evening...then becoming light and variable
after midnight becoming west 5 to 10 knots early in the morning.
waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. 
.sunday...southwest winds 5 to 10 knots becoming south 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet
building to 2 to 4 feet early in the afternoon. 
.sunday night...south winds 5 to 10 knots. a chance of showers.
waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening
and overnight. 
.monday...light and variable winds becoming north 5 to 10 knots
late in the afternoon. a chance of showers. waves 2 feet or less.
.tuesday...northwest winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.wednesday...southwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming west 5 to 10 knots by
midnight. waves 2 feet or less. 


$$

fzus63 kdtx 081346
glflh 
expires:202608082200;;828222

open lake forecast for lake huron
national weather service detroit/pontiac mi
946 am edt sat aug 8 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...scattered showers and thunderstorms are possible today
as a cold front tracks through the central great lakes. winds
shift to the northwest and briefly top out at in 20 to 25 knot
range over northern lake huron late today into the evening. high
pressure, 30.00 inches, slides east through the ohio valley
saturday night, allowing winds to become southerly once again for
sunday.


lhz462>464-082200-
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-
946 am edt sat aug 8 2026

.rest of today...southwest winds 10 to 15 knots becoming west late
in the afternoon. a chance of showers. waves 1 to 3 feet. 
.tonight...north winds 5 to 10 knots in the evening becoming
light and variable. waves 1 to 3 feet. 
.sunday...southwest winds 5 to 10 knots backing to the south
early in the afternoon. waves 2 feet or less. 
.sunday night...south winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. a chance of showers.
waves 1 to 3 feet. 
.monday...southwest winds 5 to 10 knots veering to the west late
in the afternoon...then veering to the west 5 to 10 knots late in
the evening. a chance of showers late in the afternoon. waves
2 feet or less. 
.tuesday...north winds 5 to 10 knots early in the morning
becoming light and variable. a chance of showers. waves 2 feet or
less. 
.wednesday...south winds 5 to 10 knots backing to the east in the
late morning and early afternoon...then backing to the east 5 to
10 knots early in the evening backing to the west by midnight.
waves 2 feet or less. 


$$

fzus63 kmkx 081347
glflm 
expires:202608082130;;828228

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
847 am cdt sat aug 8 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 of 29.5 inches over the hudson bay has carried its 
cold front across the lake with west to northwest winds behind the
front this morning that will quickly return to southerly by this 
evening ahead of the next approaching low pressure system. an 
unsettled weather pattern will set up over the upper great lakes 
next week where weak waves of low pressure will cross the region 
and produce rounds of thunderstorms at times.


lmz261-362-364-366-563-565-567-868-082130-
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-
847 am cdt sat aug 8 2026

sheboygan wi to pentwater mi north...

.rest of today...northwest winds 10 to 20 kt backing to
southwest. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.tonight...south winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 3 ft. 
.sunday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers. waves 1 to 3 ft building to 3 to 5 ft. 
.sunday night...southwest winds 10 to 20 kt veering to northwest
10 to 15 kt. chance of showers. waves 2 to 4 ft subsiding to 1 to
3 ft. 
.monday...north winds 10 to 15 kt becoming northwest. waves 1 to
3 ft. 
.monday night...southwest winds 10 to 15 kt veering to northeast.
chance of showers. waves 1 ft or less. 
.tuesday...east winds 5 to 10 kt veering to southwest 10 to
15 kt. waves 1 ft or less. 
.wednesday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 ft or less.  

$$

fzus63 kmkx 081347
glflm 
expires:202608082130;;828229

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
847 am cdt sat aug 8 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 of 29.5 inches over the hudson bay has carried its 
cold front across the lake with west to northwest winds behind the
front this morning that will quickly return to southerly by this 
evening ahead of the next approaching low pressure system. an 
unsettled weather pattern will set up over the upper great lakes 
next week where weak waves of low pressure will cross the region 
and produce rounds of thunderstorms at times.


lmz080-669-671-673-675-777-779-870-872-874-876-878-082130-
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-
847 am cdt sat aug 8 2026

sheboygan wi to pentwater mi south...

.rest of today...west winds 10 to 15 kt becoming southwest. waves
2 to 4 ft. 
.tonight...south winds 10 to 15 kt becoming southwest. waves 1 to
2 ft. 
.sunday...south winds 10 to 15 kt increasing to 15 to 25 kt, then
diminishing to 10 to 20 kt late. chance of showers in the
morning, then showers likely with a chance of thunderstorms in
the afternoon. waves 1 to 2 ft building to 2 to 4 ft. 
.sunday night...south winds 10 to 20 kt becoming southwest.
showers with a chance of thunderstorms. waves 2 to 4 ft. 
.monday...west winds 10 to 15 kt veering to northeast. chance of
showers and thunderstorms in the morning, then chance of showers
in the afternoon. waves 1 to 3 ft. 
.monday night...northeast winds 5 to 10 kt becoming east. showers
likely with a chance of thunderstorms. waves 1 to 2 ft.
.tuesday...east winds 5 to 10 kt becoming northeast 10 to 15 kt.
chance of showers. waves 1 to 2 ft. 
.wednesday...east winds 10 to 15 kt backing to west. waves 1 ft
or less.  

$$

fzus63 kmqt 081401
glfls 
expires:202608082000;;828645

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat aug 8 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...

upper michigan is situated between a 29.6 inch quebec low and a 30.0 
inch high centered over iowa. this will drive weak and ill-defined 
29.9 inch ridging/troughing over lake superior through monday night 
as the high moves southeast. weak ridging of 30.0 inches, extending 
between a 30.2 inch bermuda high and 30.0 inch ridging over the 
western canadian provinces, returns for monday and tuesday before 
decreasing to 29.9 inches on wednesday. a 29.8 inch trough moves 
over the lake wednesday night before ridging of 30.0 inches returns 
on thursday from the canadian prairie.




lsz162-082000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt sat aug 8 2026 /901 am cdt sat aug 8 2026/

.rest of today...southwest winds 10 to 20 knots increasing to
15 to 25 knots late. waves calm to 2 feet building to 1 to
3 feet. 
.tonight...southwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight, then veering north late. a chance of
showers. a slight chance of thunderstorms after midnight. waves
subsiding to calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. a slight chance of
showers through early afternoon. waves calm to 2 feet. 
.sunday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.monday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.monday night...west winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots veering north. waves
calm to 2 feet. 
.wednesday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 081401
glfls 
expires:202608082000;;828646

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat aug 8 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...

upper michigan is situated between a 29.6 inch quebec low and a 30.0 
inch high centered over iowa. this will drive weak and ill-defined 
29.9 inch ridging/troughing over lake superior through monday night 
as the high moves southeast. weak ridging of 30.0 inches, extending 
between a 30.2 inch bermuda high and 30.0 inch ridging over the 
western canadian provinces, returns for monday and tuesday before 
decreasing to 29.9 inches on wednesday. a 29.8 inch trough moves 
over the lake wednesday night before ridging of 30.0 inches returns 
on thursday from the canadian prairie.




lsz263-082000-
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-
1001 am edt sat aug 8 2026

.rest of today...west winds 5 to 15 knots becoming southwest
15 to 25 knots in the afternoon. waves calm to 2 feet building to
2 to 4 feet. 
.tonight...southwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. a chance of showers. a slight chance of
thunderstorms after midnight. waves subsiding to calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots veering west in the
afternoon, then backing southwest late. a chance of showers
through early afternoon. waves calm to 2 feet. 
.sunday night...southwest winds 5 to 15 knots becoming west less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.monday night...southwest winds 5 to 15 knots becoming west less
than 10 knots after midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 081401
glfls 
expires:202608082000;;828647

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat aug 8 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...

upper michigan is situated between a 29.6 inch quebec low and a 30.0 
inch high centered over iowa. this will drive weak and ill-defined 
29.9 inch ridging/troughing over lake superior through monday night 
as the high moves southeast. weak ridging of 30.0 inches, extending 
between a 30.2 inch bermuda high and 30.0 inch ridging over the 
western canadian provinces, returns for monday and tuesday before 
decreasing to 29.9 inches on wednesday. a 29.8 inch trough moves 
over the lake wednesday night before ridging of 30.0 inches returns 
on thursday from the canadian prairie.




lsz264-082000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt sat aug 8 2026

.rest of today...west winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then backing southwest late. waves
calm to 2 feet building to 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. a chance of showers after midnight.
waves subsiding to calm to 2 feet. 
.sunday...west winds 5 to 15 knots backing southwest late. a
slight chance of showers through early afternoon. waves calm to
2 feet. 
.sunday night...southwest winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.monday...west winds less than 10 knots becoming southwest 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.monday night...southwest winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.tuesday...west winds less than 10 knots backing southwest. waves
calm to 2 feet. 
.wednesday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 081401
glfls 
expires:202608082000;;828648

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat aug 8 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...

upper michigan is situated between a 29.6 inch quebec low and a 30.0 
inch high centered over iowa. this will drive weak and ill-defined 
29.9 inch ridging/troughing over lake superior through monday night 
as the high moves southeast. weak ridging of 30.0 inches, extending 
between a 30.2 inch bermuda high and 30.0 inch ridging over the 
western canadian provinces, returns for monday and tuesday before 
decreasing to 29.9 inches on wednesday. a 29.8 inch trough moves 
over the lake wednesday night before ridging of 30.0 inches returns 
on thursday from the canadian prairie.




lsz265-082000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt sat aug 8 2026

.rest of today...west winds 15 to 25 knots diminishing to 10 to
20 knots late. waves calm to 2 feet. 
.tonight...southwest winds 10 to 20 knots veering west late. a
chance of showers after midnight. waves calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots becoming east 5 to
15 knots in the afternoon. a chance of showers. waves calm to
2 feet. 
.sunday night...southeast winds 5 to 15 knots veering west after
midnight. a slight chance of showers through midnight. waves calm
to 2 feet. 
.monday...west winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.tuesday...southwest winds 5 to 15 knots veering west. waves calm
to 2 feet. 
.wednesday...northwest winds 10 to 20 knots. waves calm to
2 feet. 

$$

fzus63 kmqt 081401
glfls 
expires:202608082000;;828649

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat aug 8 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...

upper michigan is situated between a 29.6 inch quebec low and a 30.0 
inch high centered over iowa. this will drive weak and ill-defined 
29.9 inch ridging/troughing over lake superior through monday night 
as the high moves southeast. weak ridging of 30.0 inches, extending 
between a 30.2 inch bermuda high and 30.0 inch ridging over the 
western canadian provinces, returns for monday and tuesday before 
decreasing to 29.9 inches on wednesday. a 29.8 inch trough moves 
over the lake wednesday night before ridging of 30.0 inches returns 
on thursday from the canadian prairie.




lsz266-082000-
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-
1001 am edt sat aug 8 2026

...dense fog advisory in effect until 2 pm edt this afternoon...

.rest of today...west winds 10 to 20 knots. waves calm to 2 feet
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots increasing to 10 to
20 knots after midnight, then veering west late. a chance of
showers after midnight. waves subsiding to calm to 2 feet. 
.sunday...west winds 10 to 20 knots becoming southwest 5 to
15 knots in the afternoon, then backing northeast late. a chance
of showers. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots backing north after
midnight. a slight chance of showers through midnight. waves calm
to 2 feet. 
.monday...west winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...west winds 5 to 15 knots backing southwest after
midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots. waves calm to 2 feet.

$$

fzus63 kmqt 081401
glfls 
expires:202608082000;;828650

open lake forecast for lake superior
national weather service marquette mi
1001 am edt sat aug 8 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...

upper michigan is situated between a 29.6 inch quebec low and a 30.0 
inch high centered over iowa. this will drive weak and ill-defined 
29.9 inch ridging/troughing over lake superior through monday night 
as the high moves southeast. weak ridging of 30.0 inches, extending 
between a 30.2 inch bermuda high and 30.0 inch ridging over the 
western canadian provinces, returns for monday and tuesday before 
decreasing to 29.9 inches on wednesday. a 29.8 inch trough moves 
over the lake wednesday night before ridging of 30.0 inches returns 
on thursday from the canadian prairie.




lsz267-082000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt sat aug 8 2026

...dense fog advisory in effect until 2 pm edt this afternoon...

.rest of today...west winds 10 to 20 knots diminishing to 5 to
15 knots late. patchy fog by late morning. waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots backing south after
midnight, then becoming southwest 10 to 20 knots late. a slight
chance of showers after midnight. waves calm to 2 feet. 
.sunday...west winds 10 to 20 knots becoming southwest 5 to
15 knots in the afternoon, then backing northeast late. a chance
of showers. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots backing north after
midnight. a chance of showers through midnight. waves calm to
2 feet. 
.monday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.monday night...northwest winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.tuesday...northwest winds 5 to 15 knots backing west. waves calm
to 2 feet. 
.wednesday...west winds 5 to 15 knots becoming northwest 10 to
20 knots. waves calm to 2 feet. 

$$