fzus63 kdtx 051332
glflh 
expires:202607052145;;456081

open lake forecast for lake huron
national weather service detroit/pontiac mi
932 am edt sun jul 5 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...northeast flow holds today along with additional
chances for some shower and thunderstorms. high pressure, 30.10
inches, will build in monday and tuesday, bringing dry weather
and light winds.


lhz361-052145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
932 am edt sun jul 5 2026

.rest of today...east winds 5 to 10 knots late in the morning
becoming light and variable. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.monday...northeast winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.monday night...light and variable winds. waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 
.wednesday...light and variable winds becoming south 5 to
10 knots . a chance of showers early in the morning...then
showers likely . waves 2 feet or less. 
.thursday...north winds 5 to 10 knots backing to the west early
in the evening...then becoming northwest 10 to 15 knots by
midnight. a chance of showers until afternoon. waves 2 feet or
less. 


$$

fzus63 kdtx 051332
glflh 
expires:202607052145;;456082

open lake forecast for lake huron
national weather service detroit/pontiac mi
932 am edt sun jul 5 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...northeast flow holds today along with additional
chances for some shower and thunderstorms. high pressure, 30.10
inches, will build in monday and tuesday, bringing dry weather
and light winds.


lhz362-363-052145-
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-
932 am edt sun jul 5 2026

.rest of today...northeast winds 10 to 15 knots. patchy fog.
waves 2 to 4 feet. 
.tonight...north winds 5 to 10 knots. patchy fog in the evening.
areas of fog after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. 
.monday...northeast winds 5 to 10 knots. waves 1 to 3 feet. 
.monday night...north winds 5 to 10 knots  becoming light and
variable. waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 
.wednesday...light and variable winds becoming southeast 5 to
10 knots. a chance of showers . waves 2 feet or less. 
.thursday...south winds 5 to 10 knots veering to the west by
midnight. a chance of showers. waves 1 to 3 feet. 


$$

fzus63 kdtx 051332
glflh 
expires:202607052145;;456083

open lake forecast for lake huron
national weather service detroit/pontiac mi
932 am edt sun jul 5 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...northeast flow holds today along with additional
chances for some shower and thunderstorms. high pressure, 30.10
inches, will build in monday and tuesday, bringing dry weather
and light winds.


lhz462>464-052145-
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-
932 am edt sun jul 5 2026

.rest of today...northeast winds 5 to 10 knots increasing to
10 to 15 knots late in the afternoon. scattered showers.
widespread fog. waves 1 to 3 feet. 
.tonight...northeast winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. scattered showers in the evening. areas
of fog. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.monday...northeast winds 5 to 10 knots becoming north 10 to
15 knots early in the afternoon. areas of fog in the morning.
waves 1 to 3 feet. 
.monday night...north winds 10 to 15 knots becoming northeast
5 to 10 knots in the late evening and overnight. waves 1 to
3 feet. 
.tuesday...light and variable winds becoming north 5 to 10 knots
late in the morning...then becoming light and variable late in
the afternoon. waves 2 feet or less. 
.wednesday...light and variable winds becoming south 5 to
10 knots . a chance of showers by midnight. waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots veering to the
northwest by midnight. a chance of showers. a chance of
thunderstorms early in the evening. waves 2 feet or less. 


$$

fzus63 kmkx 051407
glflm 
expires:202607052115;;457128

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 am cdt sun jul 5 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...

high pressure around 30.2 inches northeast of the region will 
remain in place through monday. weak low pressure around 29.9 
inches will slowly move east across indiana into ohio during this 
time. scattered showers and a few thunderstorms are expected over 
mainly the far southern portions of lake michigan today into early
this evening. increasing north to northeast winds are expected as
well today, lingering tonight into monday.

high pressure around 30.0 inches will then shift southeast across
the region monday night and tuesday, with lighter winds. 
southwest winds should increase wednesday, ahead of a cold front 
moving toward the region.


lmz261-362-364-366-563-565-567-868-052115-
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-
907 am cdt sun jul 5 2026

sheboygan wi to pentwater mi north...

.rest of today...northeast winds 10 to 20 kt increasing to 15 to
25 kt. waves 2 to 4 ft. 
.tonight...northeast winds 15 to 25 kt diminishing to 5 to 10 kt.
waves 2 to 4 ft subsiding to 1 to 3 ft. 
.monday...northeast winds 5 to 10 kt becoming north 15 to 25 kt.
waves 2 to 4 ft. 
.monday night...northeast winds 10 to 20 kt becoming southeast
5 to 10 kt overnight. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.tuesday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.tuesday night...southwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 ft or less. 
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. chance of showers. waves 1 to 2 ft building to 1 to 3 ft. 
.thursday...north winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers. waves 2 to 4 ft.  

$$

fzus63 kmkx 051407
glflm 
expires:202607052115;;457129

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 am cdt sun jul 5 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...

high pressure around 30.2 inches northeast of the region will 
remain in place through monday. weak low pressure around 29.9 
inches will slowly move east across indiana into ohio during this 
time. scattered showers and a few thunderstorms are expected over 
mainly the far southern portions of lake michigan today into early
this evening. increasing north to northeast winds are expected as
well today, lingering tonight into monday.

high pressure around 30.0 inches will then shift southeast across
the region monday night and tuesday, with lighter winds. 
southwest winds should increase wednesday, ahead of a cold front 
moving toward the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-052115-
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-
907 am cdt sun jul 5 2026

sheboygan wi to pentwater mi south...

.rest of today...northeast winds 10 to 20 kt becoming north 15 to
25 kt. chance of showers and slight chance of thunderstorms late
this morning, then slight chance of showers and thunderstorms
this afternoon. waves 2 to 4 ft. 
.tonight...north winds 15 to 25 kt becoming northeast 10 to
20 kt, then diminishing to 10 to 15 kt late. waves 3 to 5 ft. 
.monday...northeast winds 10 to 15 kt becoming north 10 to 20 kt
early in the afternoon, then increasing to 15 to 25 kt late.
waves 2 to 4 ft. 
.monday night...north winds 10 to 20 kt diminishing to 5 to 10 kt
overnight. waves 2 to 4 ft. 
.tuesday...north winds 5 to 10 kt becoming northwest. waves 1 to
2 ft. 
.tuesday night...southwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 ft or less. 
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 3 ft. 
.thursday...west winds 10 to 20 kt becoming northwest. chance of
showers. waves 2 to 4 ft.  

$$

fzus63 kmkx 050807
glflm 
expires:202607051530;;444673

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
307 am cdt sun jul 5 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...

high pressure around 30.2 inches northeast of the region will 
remain in place through monday. weak low pressure around 29.9 
inches will slowly move east across indiana into ohio during this 
time. scattered showers and a few thunderstorms are expected over 
mainly the far southern portions of lake michigan today into early
this evening. increasing north to northeast winds are expected as
well today, lingering tonight into monday.

areas of dense fog should linger into the middle morning hours
across central and southern portions of the lake, where a dense
fog advisory is in effect. there is an expectation that the fog
will diminish by the middle morning hours, with increasing north
to northeast winds. 

high pressure around 30.0 inches will then shift southeast across
the region monday night and tuesday, with lighter winds. 
southwest winds should increase wednesday, ahead of a cold front 
moving toward the region.


lmz261-362-364-563-051530-
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 rock island passage to sturgeon bay wi-
307 am cdt sun jul 5 2026

sturgeon bay wi to point betsie mi north...

.today...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.tonight...northeast winds 10 to 20 kt diminishing to 5 to 10 kt.
waves 1 to 2 ft. 
.monday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.monday night...northeast winds 10 to 15 kt veering to south less
than 10 kt overnight. waves 1 ft or less. 
.tuesday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.tuesday night...southwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 ft or less. 
.wednesday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. chance of showers. waves 1 to 2 ft. 
.thursday...north winds 10 to 20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 050807
glflm 
expires:202607051530;;444674

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
307 am cdt sun jul 5 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...

high pressure around 30.2 inches northeast of the region will 
remain in place through monday. weak low pressure around 29.9 
inches will slowly move east across indiana into ohio during this 
time. scattered showers and a few thunderstorms are expected over 
mainly the far southern portions of lake michigan today into early
this evening. increasing north to northeast winds are expected as
well today, lingering tonight into monday.

areas of dense fog should linger into the middle morning hours
across central and southern portions of the lake, where a dense
fog advisory is in effect. there is an expectation that the fog
will diminish by the middle morning hours, with increasing north
to northeast winds. 

high pressure around 30.0 inches will then shift southeast across
the region monday night and tuesday, with lighter winds. 
southwest winds should increase wednesday, ahead of a cold front 
moving toward the region.


lmz366-565-567-868-051530-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
307 am cdt sun jul 5 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

...dense fog advisory in effect until 10 am cdt this morning...

.today...northeast winds 10 to 15 kt becoming north 15 to 25 kt.
areas of dense fog this morning. waves 2 to 4 ft. 
.tonight...northeast winds 15 to 25 kt diminishing to 5 to 10 kt.
waves 2 to 4 ft subsiding to 1 to 3 ft. 
.monday...northeast winds 5 to 10 kt becoming north 15 to 25 kt.
waves 2 to 4 ft. 
.monday night...north winds 10 to 20 kt diminishing to 5 to 10 kt
overnight. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.tuesday...west winds 5 to 10 kt becoming southwest. waves 1 ft
or less. 
.tuesday night...southwest winds 5 to 10 kt. waves nearly calm. 
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. chance of showers. waves 1 to 2 ft building to 1 to 3 ft. 
.thursday...northwest winds 10 to 20 kt becoming north 15 to
25 kt. chance of showers. waves 2 to 4 ft.  

$$

fzus63 kmqt 051401
glfls 
expires:202607052000;;456776

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jul 5 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 30.2 inch high over the hudson bay will push southeast into quebec 
through monday morning, extending a 30.1 inch ridge over lake 
superior. meanwhile, low pressure will move from northern 
saskatchewan to hudson bay, deepening to 29.5 inches as it reaches 
hudson bay on tuesday morning. as the low departs the hudson bay, 
moving east, it will extend a 29.8 inch trough over lake superior on 
wednesday. thereafter high pressure at 29.9 inches builds over the 
upper great lakes for thursday and friday.




lsz162-052000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt sun jul 5 2026 /900 am cdt sun jul 5 2026/

.rest of today...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...northeast winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.monday...east winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon, then backing north late. waves calm to
2 feet. 
.monday night...north winds less than 10 knots becoming southwest
5 to 15 knots after midnight. a slight chance of showers and
thunderstorms. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. a slight chance of
showers. a slight chance of thunderstorms by mid afternoon. waves
calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots veering north
after midnight. a chance of showers and thunderstorms. waves calm
to 2 feet. 
.wednesday...northeast winds 5 to 15 knots backing north. showers
likely. a chance of thunderstorms. a chance of showers. waves
calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots backing north. waves
calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202607052000;;456777

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jul 5 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 30.2 inch high over the hudson bay will push southeast into quebec 
through monday morning, extending a 30.1 inch ridge over lake 
superior. meanwhile, low pressure will move from northern 
saskatchewan to hudson bay, deepening to 29.5 inches as it reaches 
hudson bay on tuesday morning. as the low departs the hudson bay, 
moving east, it will extend a 29.8 inch trough over lake superior on 
wednesday. thereafter high pressure at 29.9 inches builds over the 
upper great lakes for thursday and friday.




lsz263-052000-
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 am edt sun jul 5 2026

.rest of today...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...east winds 5 to 15 knots diminishing to less than
10 knots late. waves calm to 2 feet. 
.monday...east winds less than 10 knots. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots veering southwest after
midnight. a slight chance of showers and thunderstorms after
midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots. a slight chance of
showers. a slight chance of thunderstorms by mid afternoon. waves
calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots becoming north
less than 10 knots after midnight. a chance of showers and
thunderstorms. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots backing north. showers
likely. a chance of thunderstorms. a chance of showers. waves
calm to 2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202607052000;;456778

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jul 5 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 30.2 inch high over the hudson bay will push southeast into quebec 
through monday morning, extending a 30.1 inch ridge over lake 
superior. meanwhile, low pressure will move from northern 
saskatchewan to hudson bay, deepening to 29.5 inches as it reaches 
hudson bay on tuesday morning. as the low departs the hudson bay, 
moving east, it will extend a 29.8 inch trough over lake superior on 
wednesday. thereafter high pressure at 29.9 inches builds over the 
upper great lakes for thursday and friday.




lsz264-052000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt sun jul 5 2026

.rest of today...east winds 5 to 15 knots. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots becoming southeast less than
10 knots after midnight. waves calm to 2 feet. 
.monday...southeast winds less than 10 knots increasing to 5 to
15 knots late. waves calm to 2 feet. 
.monday night...south winds 5 to 15 knots veering southwest after
midnight. a slight chance of showers after midnight. waves calm
to 2 feet. 
.tuesday...west winds 5 to 15 knots backing southwest by mid
afternoon. a slight chance of showers through early afternoon.
waves calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots becoming east less
than 10 knots after midnight. waves calm to 2 feet. 
.wednesday...northeast winds less than 10 knots becoming north
5 to 15 knots. a chance of showers. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202607052000;;456779

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jul 5 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 30.2 inch high over the hudson bay will push southeast into quebec 
through monday morning, extending a 30.1 inch ridge over lake 
superior. meanwhile, low pressure will move from northern 
saskatchewan to hudson bay, deepening to 29.5 inches as it reaches 
hudson bay on tuesday morning. as the low departs the hudson bay, 
moving east, it will extend a 29.8 inch trough over lake superior on 
wednesday. thereafter high pressure at 29.9 inches builds over the 
upper great lakes for thursday and friday.




lsz265-052000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt sun jul 5 2026

.rest of today...northeast winds 5 to 15 knots increasing to
10 to 20 knots in the afternoon, then diminishing to 5 to
15 knots late. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering southeast after
midnight. waves calm to 2 feet. 
.monday...southeast winds 5 to 15 knots backing east in the
afternoon, then increasing to 10 to 20 knots late. waves calm to
2 feet. 
.monday night...southeast winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots backing east by mid
afternoon. a slight chance of showers and thunderstorms by mid
afternoon. waves calm to 2 feet. 
.tuesday night...southeast winds 5 to 15 knots. a chance of
showers. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots. showers likely. a chance
of thunderstorms. a chance of showers. waves calm to 2 feet. 
.thursday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202607052000;;456780

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jul 5 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 30.2 inch high over the hudson bay will push southeast into quebec 
through monday morning, extending a 30.1 inch ridge over lake 
superior. meanwhile, low pressure will move from northern 
saskatchewan to hudson bay, deepening to 29.5 inches as it reaches 
hudson bay on tuesday morning. as the low departs the hudson bay, 
moving east, it will extend a 29.8 inch trough over lake superior on 
wednesday. thereafter high pressure at 29.9 inches builds over the 
upper great lakes for thursday and friday.




lsz266-052000-
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 am edt sun jul 5 2026

.rest of today...east winds 5 to 15 knots backing northeast in
the afternoon. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots veering northeast after
midnight, then becoming northwest less than 10 knots late. waves
calm to 2 feet. 
.monday...east winds less than 10 knots increasing to 5 to
15 knots in the afternoon, then veering southeast late. waves
calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots diminishing to less than
10 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...southeast winds less than 10 knots increasing to
5 to 15 knots after midnight. a chance of showers. waves calm to
2 feet. 
.wednesday...northeast winds 5 to 15 knots. a chance of showers
and thunderstorms. waves calm to 2 feet. 
.thursday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 051401
glfls 
expires:202607052000;;456781

open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jul 5 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 30.2 inch high over the hudson bay will push southeast into quebec 
through monday morning, extending a 30.1 inch ridge over lake 
superior. meanwhile, low pressure will move from northern 
saskatchewan to hudson bay, deepening to 29.5 inches as it reaches 
hudson bay on tuesday morning. as the low departs the hudson bay, 
moving east, it will extend a 29.8 inch trough over lake superior on 
wednesday. thereafter high pressure at 29.9 inches builds over the 
upper great lakes for thursday and friday.




lsz267-052000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt sun jul 5 2026

.rest of today...northeast winds 5 to 15 knots backing north
late. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots backing west late. waves
calm to 2 feet. 
.monday...northwest winds less than 10 knots veering north in the
afternoon, then becoming east 5 to 15 knots late. waves calm to
2 feet. 
.monday night...southeast winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.tuesday...south winds 5 to 15 knots backing north by mid
afternoon. waves calm to 2 feet. 
.tuesday night...southeast winds less than 10 knots becoming east
5 to 15 knots after midnight. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots backing north. a
chance of showers. waves calm to 2 feet. 
.thursday...northwest winds 10 to 20 knots becoming north 5 to
15 knots. waves calm to 2 feet. 

$$