fzus63 kdtx 300654
glflh 
expires:202606301500;;151772

open lake forecast for lake huron
national weather service detroit/pontiac mi
254 am edt tue jun 30 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...a warm front lifts across the region through tuesday.
a hot and humid air mass then takes residence through the week
with modest south to southwest winds. the central great lakes
will largely remain dry and stable through thursday. however, the
prevailing storm track directed over the northern great lakes may
bring occasional rounds of storms to northern lake huron.


lhz462>464-301500-
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-
254 am edt tue jun 30 2026

.today...south winds 10 to 15 knots. waves 1 to 3 feet. 
.tonight...southwest winds 10 to 15 knots. waves 2 to 4 feet. 
.wednesday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet. 
.wednesday night...south winds 5 to 10 knots becoming southwest
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet. 
.thursday...southwest winds 10 to 15 knots becoming west 5 to
10 knots late in the evening. a chance of showers late in the
evening. waves 2 to 4 feet subsiding to 1 to 3 feet late in the
evening. 
.friday...southwest winds 5 to 10 knots backing to the southeast
early in the evening...then veering to the south by midnight. a
chance of showers early in the morning. a chance of
thunderstorms. rain showers likely . waves 2 feet or less. 
.saturday...west winds 5 to 10 knots veering to the north. a
chance of showers early in the morning. waves 2 feet or less. 


$$

fzus63 kdtx 300654
glflh 
expires:202606301500;;151771

open lake forecast for lake huron
national weather service detroit/pontiac mi
254 am edt tue jun 30 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...a warm front lifts across the region through tuesday.
a hot and humid air mass then takes residence through the week
with modest south to southwest winds. the central great lakes
will largely remain dry and stable through thursday. however, the
prevailing storm track directed over the northern great lakes may
bring occasional rounds of storms to northern lake huron.


lhz362-363-301500-
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-
254 am edt tue jun 30 2026

.today...south winds 10 to 15 knots. areas of fog. waves 2 to
4 feet. 
.tonight...southwest winds 10 to 15 knots. areas of fog. waves
2 to 4 feet. 
.wednesday...southwest winds 10 to 15 knots becoming south 5 to
10 knots in the late morning and afternoon. waves 2 to 4 feet. 
.wednesday night...south winds 5 to 10 knots becoming southwest
10 to 15 knots after midnight. a chance of showers after
midnight. waves 2 to 4 feet. 
.thursday...southwest winds 10 to 15 knots becoming south 5 to
10 knots late in the afternoon...then becoming light and variable
late in the evening. a chance of showers. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the evening. 
.friday...light and variable winds becoming south 5 to 10 knots .
a chance of showers and thunderstorms...then a chance of showers
by midnight. waves 2 feet or less. 
.saturday...northwest winds 5 to 10 knots. a chance of showers
early in the morning. waves 2 feet or less. 


$$

fzus63 kdtx 300654
glflh 
expires:202606301500;;151770

open lake forecast for lake huron
national weather service detroit/pontiac mi
254 am edt tue jun 30 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...a warm front lifts across the region through tuesday.
a hot and humid air mass then takes residence through the week
with modest south to southwest winds. the central great lakes
will largely remain dry and stable through thursday. however, the
prevailing storm track directed over the northern great lakes may
bring occasional rounds of storms to northern lake huron.


lhz361-301500-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
254 am edt tue jun 30 2026

.today...south winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and afternoon. areas of fog. waves 2 to
4 feet subsiding to 1 to 3 feet in the late morning and
afternoon. 
.tonight...west winds 5 to 10 knots veering to the northeast late
in the evening...then veering to the southeast after midnight
becoming south 10 to 15 knots early in the morning. a chance of
thunderstorms in the evening. areas of fog. waves 1 to 3 feet. 
.wednesday...west winds 5 to 10 knots. waves 1 to 3 feet. 
.wednesday night...east winds 5 to 10 knots veering to the south
by midnight...then becoming southwest 10 to 15 knots after
midnight. showers likely and a chance of thunderstorms. waves
1 to 3 feet. 
.thursday...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the evening. a chance of showers. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the evening. 
.friday...west winds 5 to 10 knots. a chance of showers and
thunderstorms early in the evening. a chance of showers by
midnight. waves 2 feet or less. 
.saturday...north winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kmkx 300149
glflm 
expires:202606300945;;138400

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
849 pm cdt mon jun 29 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...

modest to breezy southerly winds will prevail into thursday then
lighter into friday as high pressure remains to the southeast of
the great lakes, while troughs of low pressure continue over
canada into the great plains. areas of dense fog may develop at 
times this week due to a very humid airmass flowing over the 
cooler waters of the lake. scattered thunderstorms are forecast on
most days, especially over the north half.


lmz563-300945-
lake michigan from rock island passage to sturgeon bay wi-
849 pm cdt mon jun 29 2026

rock island passage to charlevoix mi south to sturgeon bay wi to
point betsie mi...

...dense fog advisory in effect until 7 am cdt tuesday...

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

$$

fzus63 kmkx 300149
glflm 
expires:202606300945;;138399

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
849 pm cdt mon jun 29 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...

modest to breezy southerly winds will prevail into thursday then
lighter into friday as high pressure remains to the southeast of
the great lakes, while troughs of low pressure continue over
canada into the great plains. areas of dense fog may develop at 
times this week due to a very humid airmass flowing over the 
cooler waters of the lake. scattered thunderstorms are forecast on
most days, especially over the north half.


lmz261-362-364-366-565-567-669-868-870-300945-
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 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 sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
849 pm cdt mon jun 29 2026

port washington wi to whitehall mi north...

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

$$

fzus63 kmkx 300149
glflm 
expires:202606300945;;138401

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
849 pm cdt mon jun 29 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...

modest to breezy southerly winds will prevail into thursday then
lighter into friday as high pressure remains to the southeast of
the great lakes, while troughs of low pressure continue over
canada into the great plains. areas of dense fog may develop at 
times this week due to a very humid airmass flowing over the 
cooler waters of the lake. scattered thunderstorms are forecast on
most days, especially over the north half.


lmz080-671-673-675-777-779-872-874-876-878-300945-
lake michigan from michigan city in to st. joseph mi 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 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-
849 pm cdt mon jun 29 2026

port washington wi to whitehall mi south...

.rest of tonight...south winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.tuesday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft. 
.tuesday night...southwest winds 10 to 20 kt. waves 3 to 5 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south. waves
2 to 4 ft. 
.wednesday night...southwest winds 10 to 20 kt. waves 3 to 5 ft. 
.thursday...southwest winds 10 to 20 kt becoming south. waves
3 to 5 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. chance of showers and thunderstorms. waves 2 to
4 ft. 
.friday...southwest winds 10 to 15 kt becoming south. chance of
showers. waves 1 to 2 ft. 
.saturday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. chance of showers. waves 1 to 2 ft.  

$$

fzus63 kmqt 300201
glfls 
expires:202606300800;;138720

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon jun 29 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... 

tonight, a 29.4 inch low will rotate around lake winnipeg, deepening 
to 29.1 inches by tuesday morning.  this low wobbles around southern 
manitoba thorugh tuesday, weakening to 29.5 inches as it crosses 
northern ontario wednesday. thursday morning, the low will further 
weaken to 29.6 inches over northern quebec while 30.0 inch high 
pressure builds over the us southeast and northern manitoba and 
broad 29.8 inch low pressure spreads over the high plains. friday 
into the weekend, the high over canada moves into hudson bay, 
building to 30.1 inches. 




lsz265-300800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt mon jun 29 2026

.rest of tonight...southeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight, then veering south late. patchy
fog. a chance of showers and a slight chance of thunderstorms.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...south winds 10 to 20 knots backing southeast late.
patchy fog through early afternoon. a slight chance of showers
and thunderstorms. some thunderstorms may be severe by mid
afternoon. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.tuesday night...south winds 10 to 20 knots veering southwest
after midnight. a chance of thunderstorms and a slight chance of
showers through midnight. some thunderstorms may be severe. waves
subsiding to calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots backing southeast by
mid afternoon. a chance of showers and thunderstorms by mid
afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 10 to 20 knots. showers likely
and a chance of thunderstorms through midnight, then a chance of
showers after midnight. waves calm to 2 feet. 
.thursday...west winds 10 to 20 knots becoming southwest 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots veering west. a chance of
showers. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots veering east. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 300201
glfls 
expires:202606300800;;138721

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon jun 29 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... 

tonight, a 29.4 inch low will rotate around lake winnipeg, deepening 
to 29.1 inches by tuesday morning.  this low wobbles around southern 
manitoba thorugh tuesday, weakening to 29.5 inches as it crosses 
northern ontario wednesday. thursday morning, the low will further 
weaken to 29.6 inches over northern quebec while 30.0 inch high 
pressure builds over the us southeast and northern manitoba and 
broad 29.8 inch low pressure spreads over the high plains. friday 
into the weekend, the high over canada moves into hudson bay, 
building to 30.1 inches. 




lsz266-300800-
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 jun 29 2026

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

$$

fzus63 kmqt 300201
glfls 
expires:202606300800;;138722

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon jun 29 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... 

tonight, a 29.4 inch low will rotate around lake winnipeg, deepening 
to 29.1 inches by tuesday morning.  this low wobbles around southern 
manitoba thorugh tuesday, weakening to 29.5 inches as it crosses 
northern ontario wednesday. thursday morning, the low will further 
weaken to 29.6 inches over northern quebec while 30.0 inch high 
pressure builds over the us southeast and northern manitoba and 
broad 29.8 inch low pressure spreads over the high plains. friday 
into the weekend, the high over canada moves into hudson bay, 
building to 30.1 inches. 




lsz267-300800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt mon jun 29 2026

.rest of tonight...southeast winds 15 to 25 knots veering south
late. a slight chance of showers and thunderstorms. patchy fog
after midnight. waves 2 to 4 feet. 
.tuesday...south winds 10 to 20 knots. patchy fog. a chance of
showers and a slight chance of thunderstorms. some thunderstorms
may be severe by mid afternoon. waves subsiding to calm to
2 feet. 
.tuesday night...south winds 10 to 20 knots becoming southwest
5 to 15 knots late. a chance of thunderstorms through midnight. a
chance of showers. a slight chance of thunderstorms after
midnight. some thunderstorms may be severe through midnight.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots backing southeast by
mid afternoon. a chance of showers and a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet. 
.wednesday night...south winds 10 to 20 knots veering southwest
after midnight. showers likely and a chance of thunderstorms.
waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots backing south by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.friday...northeast winds 5 to 15 knots backing west. a chance of
showers and thunderstorms. waves calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots veering northeast.
waves calm to 2 feet. 

$$

fzus63 kmqt 300201
glfls 
expires:202606300800;;138719

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon jun 29 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... 

tonight, a 29.4 inch low will rotate around lake winnipeg, deepening 
to 29.1 inches by tuesday morning.  this low wobbles around southern 
manitoba thorugh tuesday, weakening to 29.5 inches as it crosses 
northern ontario wednesday. thursday morning, the low will further 
weaken to 29.6 inches over northern quebec while 30.0 inch high 
pressure builds over the us southeast and northern manitoba and 
broad 29.8 inch low pressure spreads over the high plains. friday 
into the weekend, the high over canada moves into hudson bay, 
building to 30.1 inches. 




lsz264-300800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt mon jun 29 2026

...dense fog advisory in effect until 8 am edt tuesday...

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

$$

fzus63 kmqt 300201
glfls 
expires:202606300800;;138718

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon jun 29 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... 

tonight, a 29.4 inch low will rotate around lake winnipeg, deepening 
to 29.1 inches by tuesday morning.  this low wobbles around southern 
manitoba thorugh tuesday, weakening to 29.5 inches as it crosses 
northern ontario wednesday. thursday morning, the low will further 
weaken to 29.6 inches over northern quebec while 30.0 inch high 
pressure builds over the us southeast and northern manitoba and 
broad 29.8 inch low pressure spreads over the high plains. friday 
into the weekend, the high over canada moves into hudson bay, 
building to 30.1 inches. 




lsz263-300800-
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 jun 29 2026

...dense fog advisory in effect until 8 am edt tuesday...

.rest of tonight...southeast winds 10 to 20 knots veering south
late. patchy dense fog. a chance of showers and thunderstorms.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...southwest winds 5 to 15 knots backing south late.
patchy fog. waves subsiding to calm to 2 feet. 
.tuesday night...southwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a slight chance of showers and
thunderstorms through midnight. some thunderstorms may be severe.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of showers
and thunderstorms by mid afternoon. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. showers likely through midnight. a
chance of thunderstorms. a slight chance of showers after
midnight. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.thursday night...southwest winds 5 to 15 knots. waves subsiding
to calm to 2 feet. 
.friday...northeast winds 5 to 15 knots backing west. a chance of
showers. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots veering east. a chance
of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 300201
glfls 
expires:202606300800;;138717

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt mon jun 29 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... 

tonight, a 29.4 inch low will rotate around lake winnipeg, deepening 
to 29.1 inches by tuesday morning.  this low wobbles around southern 
manitoba thorugh tuesday, weakening to 29.5 inches as it crosses 
northern ontario wednesday. thursday morning, the low will further 
weaken to 29.6 inches over northern quebec while 30.0 inch high 
pressure builds over the us southeast and northern manitoba and 
broad 29.8 inch low pressure spreads over the high plains. friday 
into the weekend, the high over canada moves into hudson bay, 
building to 30.1 inches. 




lsz162-300800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt mon jun 29 2026 /900 pm cdt mon jun 29 2026/

.rest of tonight...northeast winds 10 to 20 knots veering east
after midnight, then becoming south 5 to 15 knots late. patchy
fog. showers likely by midnight. a chance of thunderstorms. a
chance of showers after midnight. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.tuesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots late. patchy fog through early afternoon. waves
subsiding to calm to 2 feet. 
.tuesday night...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of showers
and thunderstorms by mid afternoon. waves calm to 2 feet. 
.wednesday night...southwest winds 5 to 15 knots. a chance of
showers and a slight chance of thunderstorms. waves calm to
2 feet. 
.thursday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots backing northeast
after midnight. a chance of showers. waves calm to 2 feet. 
.friday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 

$$