fzus63 kdtx 100143
glflh 
expires:202606101000;;474304

open lake forecast for lake huron
national weather service detroit/pontiac mi
943 pm edt tue jun 9 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...weak low pressure, 29.80 inches, will track across
lake huron tonight through wednesday morning, then a weak ridge
will build into the southern lakes. a warm and stormy pattern
continues wednesday night and again thursday night ahead of the
next cold front early friday morning.


lhz361-101000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
943 pm edt tue jun 9 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...northeast winds 5 to 10 knots this evening
becoming light and variable...then becoming north 5 to 10 knots
early in the morning. a chance of showers. areas of dense fog.
waves 2 feet or less. 
.wednesday...west winds 5 to 10 knots. areas of dense fog in the
morning. waves 2 feet or less. 
.wednesday night...north winds 5 to 10 knots becoming southeast
10 to 15 knots by midnight...then decreasing to 5 to 10 knots
after midnight. a chance of thunderstorms in the evening...then a
chance of showers and thunderstorms after midnight. patchy fog
after midnight. waves 2 feet or less. 
.thursday...south winds 5 to 10 knots becoming west 10 to
15 knots in the late morning and early afternoon...then
decreasing to 5 to 10 knots early in the afternoon. waves 1 to
3 feet. 
.thursday night...south winds 5 to 10 knots becoming southeast
10 to 15 knots by midnight...then increasing to 15 to 20 knots
after midnight. showers and a chance of thunderstorms. waves
2 feet or less building to 3 to 5 feet in the late evening and
overnight. 
.friday...southwest winds 15 to 20 knots becoming west 5 to
10 knots. waves 4 to 6 feet subsiding to 1 to 3 feet late in the
evening. waves occasionally around 8 feet. 
.saturday...west winds 10 to 15 knots. a chance of showers. waves
2 to 4 feet subsiding to 1 to 3 feet by midnight. 
.sunday...northwest winds 10 to 15 knots. a chance of showers
early in the morning. waves 1 to 3 feet building to 2 to 4 feet.


$$

fzus63 kdtx 100143
glflh 
expires:202606101000;;474305

open lake forecast for lake huron
national weather service detroit/pontiac mi
943 pm edt tue jun 9 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...weak low pressure, 29.80 inches, will track across
lake huron tonight through wednesday morning, then a weak ridge
will build into the southern lakes. a warm and stormy pattern
continues wednesday night and again thursday night ahead of the
next cold front early friday morning.


lhz362-363-101000-
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-
943 pm edt tue jun 9 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...north winds 5 to 10 knots. a chance of
showers. areas of dense fog. waves 1 to 3 feet. 
.wednesday...west winds 5 to 10 knots backing to the southeast
late in the afternoon. areas of dense fog in the morning. patchy
fog in the afternoon. waves 2 feet or less. 
.wednesday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots in the late evening and overnight. patchy fog. a
chance of showers and thunderstorms after midnight. waves 1 to
3 feet building to 2 to 4 feet after midnight. 
.thursday...south winds 10 to 15 knots becoming southwest 5 to
10 knots in the late morning and afternoon. waves 2 to 4 feet
subsiding to 1 to 3 feet early in the afternoon. 
.thursday night...east winds 5 to 10 knots becoming southeast
10 to 15 knots by midnight...then becoming south 15 to 20 knots
after midnight. showers likely and a chance of thunderstorms in
the evening...then showers likely after midnight. waves 1 to
3 feet building to 4 to 6 feet. waves occasionally around 8 feet.
.friday...southwest winds 15 to 20 knots becoming west 10 to
15 knots late in the morning...then decreasing to west late in
the evening. waves 4 to 6 feet subsiding to 2 to 4 feet late in
the evening. waves occasionally around 8 feet. 
.saturday...southwest winds 10 to 15 knots. a chance of showers
by midnight. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...west winds 10 to 15 knots becoming northwest 5 to
10 knots. a chance of showers until afternoon. waves 2 to 4 feet.


$$

fzus63 kdtx 100143
glflh 
expires:202606101000;;474306

open lake forecast for lake huron
national weather service detroit/pontiac mi
943 pm edt tue jun 9 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...weak low pressure, 29.80 inches, will track across
lake huron tonight through wednesday morning, then a weak ridge
will build into the southern lakes. a warm and stormy pattern
continues wednesday night and again thursday night ahead of the
next cold front early friday morning.


lhz462>464-101000-
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-
943 pm edt tue jun 9 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...south winds 5 to 10 knots veering to the
southwest early in the morning. a chance of showers and
thunderstorms this evening...then a chance of showers after
midnight. patchy dense fog this evening. areas of dense fog after
midnight. waves 1 to 3 feet. 
.wednesday...west winds 5 to 10 knots in the morning becoming
light and variable...then becoming east 5 to 10 knots late in the
afternoon. patchy dense fog in the morning. waves 2 feet or less.
.wednesday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots after midnight. a chance of showers and
thunderstorms. waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots early in the afternoon. a chance of showers in the
morning. waves 1 to 3 feet. 
.thursday night...southeast winds 5 to 10 knots increasing to
10 to 15 knots by midnight...then becoming south 15 to 20 knots
after midnight. a chance of showers. waves 1 to 3 feet building
to 3 to 5 feet after midnight. 
.friday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet late in the
evening. 
.saturday...west winds 10 to 15 knots becoming southwest 5 to
10 knots in the late morning and early afternoon...then
increasing to 10 to 15 knots . a chance of showers by midnight.
waves 1 to 3 feet. 
.sunday...west winds 5 to 10 knots. a chance of showers until
afternoon. waves 1 to 3 feet. 


$$

fzus63 kmkx 100202
glflm 
expires:202606100930;;474832

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 pm cdt tue jun 9 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...

marine dense fog is expected to continue to expand into southern
portions of the lake this evening, with an advisory in effect
across the lake until mid-morning wednesday. 

generally light northerly winds will continue into tonight, until
the warm front lifts north over the lake around midnight cdt and 
flips winds around to southerly and southeasterly. winds will then
remain southerly through wednesday as low pressure of 29.3 inches
approaches from the northern plains. the winds may become 
moderately breezy late wednesday afternoon into the evening. 
thunderstorms are expected over the lake at times on wednesday, 
with some strong storms favored wednesday afternoon and night.

winds come around to southwesterly wednesday night into
thursday, with winds then returning to southeasterly ahead of an
approaching cold front on thursday, with additional storms
possible.


lmz080-669-671-673-675-777-779-870-872-874-876-878-100930-
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-
902 pm cdt tue jun 9 2026

sheboygan wi to pentwater mi south...

...dense fog advisory in effect until 10 am cdt wednesday...

.rest of tonight...northeast winds 5 to 10 kt veering to south.
areas of dense fog. waves 1 ft or less. 
.wednesday...south winds 10 to 15 kt increasing to 15 to 25 kt.
areas of dense fog in the morning. slight chance of showers and
thunderstorms in the morning, then chance of showers and slight
chance of thunderstorms in the afternoon. waves 1 to 2 ft
building to 3 to 5 ft. 
.wednesday night...south winds 15 to 25 kt becoming southwest
10 to 20 kt. chance of showers and thunderstorms in the evening,
then showers likely with a chance of thunderstorms overnight.
waves 4 to 6 ft occasionally to 8 ft. 
.thursday...southwest winds 10 to 20 kt becoming southeast 15 to
25 kt. chance of showers and thunderstorms in the afternoon.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.thursday night...south winds to 30 kt becoming west. showers
with a chance of thunderstorms in the evening, then showers
overnight. waves 4 to 7 ft occasionally to 9 ft. 
.friday...west winds 10 to 20 kt becoming southwest. waves 4 to
6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.friday night...west winds 10 to 20 kt becoming southwest. waves
2 to 4 ft. 
.saturday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 3 to 5 ft. 
.sunday...north winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 100202
glflm 
expires:202606100930;;474831

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 pm cdt tue jun 9 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...

marine dense fog is expected to continue to expand into southern
portions of the lake this evening, with an advisory in effect
across the lake until mid-morning wednesday. 

generally light northerly winds will continue into tonight, until
the warm front lifts north over the lake around midnight cdt and 
flips winds around to southerly and southeasterly. winds will then
remain southerly through wednesday as low pressure of 29.3 inches
approaches from the northern plains. the winds may become 
moderately breezy late wednesday afternoon into the evening. 
thunderstorms are expected over the lake at times on wednesday, 
with some strong storms favored wednesday afternoon and night.

winds come around to southwesterly wednesday night into
thursday, with winds then returning to southeasterly ahead of an
approaching cold front on thursday, with additional storms
possible.


lmz261-362-364-366-563-565-567-868-100930-
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-
902 pm cdt tue jun 9 2026

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until 10 am cdt wednesday...

.rest of tonight...north winds 5 to 10 kt backing to southwest.
patchy dense fog through early evening, then widespread dense fog
overnight. waves 1 ft or less. 
.wednesday...south winds 5 to 10 kt becoming southeast 10 to
20 kt. areas of dense fog in the morning, then patchy fog in the
afternoon. chance of showers and slight chance of thunderstorms
in the afternoon. waves 1 to 2 ft building to 3 to 5 ft. 
.wednesday night...southeast winds 15 to 25 kt becoming southwest
10 to 20 kt. patchy dense fog in the evening. chance of showers
and thunderstorms. waves 4 to 6 ft occasionally to 8 ft. 
.thursday...southwest winds 10 to 20 kt becoming south. chance of
showers in the afternoon. waves 3 to 5 ft subsiding to 2 to 4 ft.
.thursday night...south winds to 30 kt becoming southwest.
showers with a chance of thunderstorms in the evening, then
showers overnight. waves 4 to 7 ft occasionally to 9 ft. 
.friday...southwest winds 15 to 25 kt increasing to 30 kt. waves
3 to 5 ft. 
.friday night...southwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 2 to 4 ft. 
.saturday...southwest winds 15 to 25 kt. waves 3 to 5 ft. 
.sunday...north winds 10 to 20 kt becoming northwest. waves 1 to
3 ft.  

$$

fzus63 kmqt 100201
glfls 
expires:202606100800;;474691

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt tue jun 9 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 ridging gives way to pressure falls to around 29.8 inches over 
lake superior through this evening as troughing over the northern 
plains deepens to 29.4 inches. pressure over the lake continues to 
deepen to around 29.5 inches by late wednesday as the low tracks 
northeast along the manitoba/ontario border at 29.3 inches wednesday 
evening. pressure holds around 29.6 inches over lake superior until 
late thursday when another colorado low lifts into the upper great 
lakes at around 29.5 inches. weak ridging of 30.0 inches returns to 
lake superior late in the weekend.




lsz264-100800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt tue jun 9 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...east winds 5 to 15 knots veering southeast
after midnight, then backing east late. areas of dense fog. waves
calm to 2 feet. 
.wednesday...southeast winds 5 to 15 knots increasing to 15 to
25 knots. areas of dense fog. a chance of showers and a slight
chance of thunderstorms by mid afternoon. waves building to 3 to
5 feet occasionally to 7 feet. 
.wednesday night...southeast winds 15 to 25 knots becoming south
10 to 20 knots after midnight, then veering southwest late. a
chance of thunderstorms through midnight. a chance of showers.
waves subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.thursday...southwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a slight chance of showers by mid
afternoon. waves subsiding to 2 to 4 feet. 
.thursday night...southwest winds 10 to 20 knots becoming west
15 to 25 knots after midnight. showers likely. waves building to
3 to 6 feet occasionally to 8 feet. 
.friday...southwest winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday night...west winds 15 to 25 knots. waves subsiding to
2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet.
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 
.sunday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 100201
glfls 
expires:202606100800;;474692

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt tue jun 9 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 ridging gives way to pressure falls to around 29.8 inches over 
lake superior through this evening as troughing over the northern 
plains deepens to 29.4 inches. pressure over the lake continues to 
deepen to around 29.5 inches by late wednesday as the low tracks 
northeast along the manitoba/ontario border at 29.3 inches wednesday 
evening. pressure holds around 29.6 inches over lake superior until 
late thursday when another colorado low lifts into the upper great 
lakes at around 29.5 inches. weak ridging of 30.0 inches returns to 
lake superior late in the weekend.




lsz265-100800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt tue jun 9 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...east winds 5 to 15 knots veering southeast
after midnight. areas of dense fog. waves calm to 2 feet. 
.wednesday...southeast winds 10 to 20 knots increasing to 20 to
30 knots. areas of dense fog through early afternoon, then patchy
fog by mid afternoon. a slight chance of showers and
thunderstorms by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.wednesday night...southeast winds 15 to 25 knots veering
southwest late. a chance of thunderstorms through midnight. a
chance of showers. waves subsiding to 1 to 3 feet. 
.thursday...west winds 10 to 20 knots backing south by mid
afternoon. a chance of showers by mid afternoon. waves subsiding
to calm to 2 feet. 
.thursday night...south winds 10 to 20 knots becoming west 15 to
25 knots after midnight. showers likely through midnight, then a
chance of showers after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday...west winds 20 to 30 knots. waves subsiding to 2 to
4 feet. 
.friday night...west winds 15 to 25 knots. waves subsiding to
1 to 3 feet. 
.saturday...west winds 15 to 25 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 100201
glfls 
expires:202606100800;;474693

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt tue jun 9 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 ridging gives way to pressure falls to around 29.8 inches over 
lake superior through this evening as troughing over the northern 
plains deepens to 29.4 inches. pressure over the lake continues to 
deepen to around 29.5 inches by late wednesday as the low tracks 
northeast along the manitoba/ontario border at 29.3 inches wednesday 
evening. pressure holds around 29.6 inches over lake superior until 
late thursday when another colorado low lifts into the upper great 
lakes at around 29.5 inches. weak ridging of 30.0 inches returns to 
lake superior late in the weekend.




lsz266-100800-
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 tue jun 9 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...east winds 5 to 15 knots. widespread dense
fog. waves calm to 2 feet. 
.wednesday...southeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. areas of dense fog through early
afternoon. widespread dense fog by mid afternoon. a slight chance
of showers and thunderstorms by mid afternoon. waves building to
3 to 5 feet occasionally to 7 feet. 
.wednesday night...southeast winds 15 to 25 knots veering south
after midnight, then becoming southwest 10 to 20 knots late. a
chance of showers and thunderstorms. waves subsiding to 2 to
4 feet. 
.thursday...west winds 10 to 20 knots becoming southeast 5 to
15 knots by mid afternoon. a slight chance of showers by mid
afternoon. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 1 to 3 feet. 
.thursday night...southeast winds 15 to 25 knots veering west
after midnight. showers through midnight, then a chance of
showers after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday...west winds 20 to 30 knots diminishing to 15 to 25 knots
by mid afternoon. waves building to 3 to 6 feet occasionally to
8 feet. 
.friday night...southwest winds 10 to 20 knots becoming west
15 to 25 knots after midnight. waves subsiding to 2 to 4 feet. 
.saturday...west winds 15 to 25 knots. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.sunday...west winds 10 to 20 knots. waves subsiding to 1 to
3 feet. 

$$

fzus63 kmqt 100201
glfls 
expires:202606100800;;474694

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt tue jun 9 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 ridging gives way to pressure falls to around 29.8 inches over 
lake superior through this evening as troughing over the northern 
plains deepens to 29.4 inches. pressure over the lake continues to 
deepen to around 29.5 inches by late wednesday as the low tracks 
northeast along the manitoba/ontario border at 29.3 inches wednesday 
evening. pressure holds around 29.6 inches over lake superior until 
late thursday when another colorado low lifts into the upper great 
lakes at around 29.5 inches. weak ridging of 30.0 inches returns to 
lake superior late in the weekend.




lsz267-100800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt tue jun 9 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...northeast winds 5 to 15 knots backing
northwest late. areas of dense fog by midnight, then widespread
dense fog after midnight. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing southeast in the
afternoon, then increasing to 10 to 20 knots late. widespread
dense fog. waves calm to 2 feet. 
.wednesday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight, then veering south late. a chance
of showers and a slight chance of thunderstorms. waves building
to 2 to 4 feet. 
.thursday...west winds 10 to 20 knots becoming southeast 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.thursday night...southeast winds 10 to 20 knots becoming west
20 to 30 knots after midnight. showers. waves building to 2 to
4 feet. 
.friday...west winds 15 to 25 knots diminishing to 5 to 15 knots
by mid afternoon. waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 2 to 4 feet. 
.friday night...southwest winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves 2 to 4 feet. 
.saturday...west winds 10 to 20 knots. waves subsiding to 1 to
3 feet. 
.sunday...west winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 100201
glfls 
expires:202606100800;;474689

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt tue jun 9 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 ridging gives way to pressure falls to around 29.8 inches over 
lake superior through this evening as troughing over the northern 
plains deepens to 29.4 inches. pressure over the lake continues to 
deepen to around 29.5 inches by late wednesday as the low tracks 
northeast along the manitoba/ontario border at 29.3 inches wednesday 
evening. pressure holds around 29.6 inches over lake superior until 
late thursday when another colorado low lifts into the upper great 
lakes at around 29.5 inches. weak ridging of 30.0 inches returns to 
lake superior late in the weekend.




lsz162-100800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt tue jun 9 2026 /900 pm cdt tue jun 9 2026/

...dense fog advisory in effect until 11 am edt /10 am cdt/
wednesday...

.rest of tonight...east winds 5 to 15 knots backing northeast
after midnight, then veering east late. areas of dense fog. a
chance of rain showers and a slight chance of thunderstorms after
midnight. waves calm to 2 feet. 
.wednesday...east winds 10 to 20 knots becoming northeast 15 to
25 knots in the afternoon, then becoming east 10 to 20 knots
late. patchy fog. a chance of showers and thunderstorms. waves
building to 1 to 3 feet. 
.wednesday night...east winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight, then increasing to 15 to 25 knots
late. a chance of showers and thunderstorms through midnight.
waves 1 to 3 feet. 
.thursday...southwest winds 15 to 25 knots. a chance of showers
by mid afternoon. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.thursday night...southwest winds 15 to 25 knots veering west
after midnight. a chance of showers. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.friday...southwest winds 20 to 30 knots. waves building to 3 to
6 feet occasionally to 8 feet. 
.friday night...west winds 10 to 20 knots. waves subsiding to
1 to 3 feet. 
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.sunday...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 100201
glfls 
expires:202606100800;;474690

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt tue jun 9 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 ridging gives way to pressure falls to around 29.8 inches over 
lake superior through this evening as troughing over the northern 
plains deepens to 29.4 inches. pressure over the lake continues to 
deepen to around 29.5 inches by late wednesday as the low tracks 
northeast along the manitoba/ontario border at 29.3 inches wednesday 
evening. pressure holds around 29.6 inches over lake superior until 
late thursday when another colorado low lifts into the upper great 
lakes at around 29.5 inches. weak ridging of 30.0 inches returns to 
lake superior late in the weekend.




lsz263-100800-
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 tue jun 9 2026

...dense fog advisory in effect until 11 am edt wednesday...

.rest of tonight...east winds 5 to 15 knots. areas of dense fog.
waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. patchy fog. a chance of showers and
thunderstorms. waves building to 2 to 4 feet. 
.wednesday night...southeast winds 10 to 20 knots veering
southwest after midnight. showers likely and a chance of
thunderstorms through midnight. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.thursday...southwest winds 15 to 25 knots. a chance of showers
by mid afternoon. waves building to 3 to 6 feet occasionally to
8 feet. 
.thursday night...southwest winds 10 to 20 knots becoming west
20 to 30 knots after midnight. showers likely through midnight,
then a chance of showers after midnight. waves subsiding to 2 to
4 feet, then building to 3 to 6 feet occasionally to 8 feet. 
.friday...southwest winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday night...west winds 15 to 25 knots. waves subsiding to
2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet.
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 
.sunday...west winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 

$$