fzus63 kdtx 090610
glflh 
expires:202604091415;;065968

open lake forecast for lake huron
national weather service detroit/pontiac mi
210 am edt thu apr 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...increasing southerly winds tonight as low pressure,
29.70 inches, tracks through lake superior and ontario. brief
gusts to gales possible over northern lake huron. showers move in
tonight into thursday as the associated cold front swings
through. additional opportunities for showers and perhaps a
thunderstorm thursday night and friday, with some light snowfall
more likely for the north/central huron basin. high pressure then
builds out of the upper midwest to start the weekend, but active
weather will be possible again sunday through tuesday.


lhz362-363-091415-
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-
210 am edt thu apr 9 2026

.today...south winds 20 to 25 knots with gusts to around 30 knots
becoming southwest 10 to 15 knots. a chance of rain in the
morning. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tonight...west winds 10 to 15 knots  becoming light and
variable. a chance of rain and snow after midnight. waves 3 to
5 feet subsiding to 1 to 3 feet early in the morning. 
.friday...light and variable winds becoming north 5 to 10 knots
in the late morning and afternoon. a chance of rain and snow.
waves 2 feet or less. 
.friday night...north winds 5 to 10 knots backing to the
northwest in the late evening and overnight. waves 2 feet or
less. 
.saturday...west winds 5 to 10 knots backing to the southeast
late in the afternoon...then increasing to 10 to 15 knots late in
the evening. waves 1 to 3 feet. 
.sunday...southeast winds 15 to 20 knots becoming south 20 to
25 knots with gusts to around 30 knots . rain likely in the late
morning and early afternoon. a chance of rain early in the
evening...then rain likely by midnight. waves 5 to 7 feet
building to 8 to 12 feet by midnight. waves occasionally around
15 feet. 
.monday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots. rain likely early in the
morning...then a chance of rain until early evening. rain likely
by midnight. waves 6 to 9 feet. waves occasionally around
12 feet. 


$$

fzus63 kdtx 090610
glflh 
expires:202604091415;;065967

open lake forecast for lake huron
national weather service detroit/pontiac mi
210 am edt thu apr 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...increasing southerly winds tonight as low pressure,
29.70 inches, tracks through lake superior and ontario. brief
gusts to gales possible over northern lake huron. showers move in
tonight into thursday as the associated cold front swings
through. additional opportunities for showers and perhaps a
thunderstorm thursday night and friday, with some light snowfall
more likely for the north/central huron basin. high pressure then
builds out of the upper midwest to start the weekend, but active
weather will be possible again sunday through tuesday.


lhz361-091415-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
210 am edt thu apr 9 2026

.today...southwest winds 10 to 15 knots becoming west 15 to
20 knots in the afternoon. waves 4 to 6 feet. waves occasionally
around 8 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. waves 3 to 5 feet subsiding to 1 to 3 feet after
midnight. 
.friday...light and variable winds becoming west 5 to 10 knots
early in the afternoon. waves 2 feet or less. 
.friday night...northwest winds 5 to 10 knots. waves 2 feet or
less. 
.saturday...west winds 5 to 10 knots backing to the southeast
late in the afternoon...then increasing to 10 to 15 knots late in
the evening. a chance of rain late in the evening. waves 2 feet
or less building to 2 to 4 feet late in the evening. 
.sunday...southeast winds 15 to 20 knots becoming south 20 to
25 knots with gusts to around 30 knots by midnight. rain. waves
5 to 7 feet. waves occasionally around 10 feet. 
.monday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
early afternoon...then becoming west 10 to 15 knots early in the
evening veering to the northeast by midnight. rain likely early
in the morning...then a chance of rain until early evening. rain
likely by midnight. waves 5 to 7 feet. waves occasionally around
10 feet. 


$$

fzus63 kdtx 090610
glflh 
expires:202604091415;;065969

open lake forecast for lake huron
national weather service detroit/pontiac mi
210 am edt thu apr 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...increasing southerly winds tonight as low pressure,
29.70 inches, tracks through lake superior and ontario. brief
gusts to gales possible over northern lake huron. showers move in
tonight into thursday as the associated cold front swings
through. additional opportunities for showers and perhaps a
thunderstorm thursday night and friday, with some light snowfall
more likely for the north/central huron basin. high pressure then
builds out of the upper midwest to start the weekend, but active
weather will be possible again sunday through tuesday.


lhz462>464-091415-
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-
210 am edt thu apr 9 2026

.today...south winds 20 to 25 knots with gusts to around 30 knots
becoming southwest 10 to 15 knots. a chance of rain in the
morning. waves 4 to 6 feet. 
.tonight...west winds 10 to 15 knots becoming northeast early in
the morning. a chance of rain after midnight. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. waves
occasionally around 8 feet. 
.friday...northeast winds 5 to 10 knots. rain in the morning.
waves 2 feet or less. 
.friday night...north winds 5 to 10 knots. waves 2 feet or less. 
.saturday...northwest winds 5 to 10 knots in the morning becoming
light and variable...then becoming northeast 5 to 10 knots late
in the afternoon veering to the southeast. waves 2 feet or less. 
.sunday...southeast winds 10 to 15 knots becoming south 20 to
25 knots with gusts to around 30 knots. a chance of rain. waves
3 to 5 feet building to 5 to 7 feet by midnight. waves
occasionally around 10 feet. 
.monday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots. a chance of rain. rain
likely by midnight. waves 5 to 7 feet. waves occasionally around
10 feet. 


$$

fzus63 kmkx 090157
glflm 
expires:202604090915;;057721

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
857 pm cdt wed apr 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 around 29.7 inches over far western ontario will
track north of lake superior tonight into thursday morning. this 
will result in continued gales into tonight across the northern 
three quarters of the lake.

much lighter westerly winds are then expected thursday in the 
wake of a cold front. light and variable winds will prevail friday 
into saturday, until breezy southerly winds return late in the 
weekend.


lmz261-362-364-366-563-565-567-868-090915-
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-
857 pm cdt wed apr 8 2026

sheboygan wi to pentwater mi north...

...gale warning in effect until 4 am cdt thursday...

.rest of tonight...south gales to 40 kt becoming southwest gales
to 35 kt after midnight, then diminishing to 15 to 25 kt late.
scattered rain showers and slight chance of thunderstorms through
early evening, then rain showers overnight. waves 10 to 13 ft 
occasionally to 18 ft subsiding to 6 to 9 ft occasionally to 12 
ft. 
.thursday...southwest winds 15 to 20 kt becoming west 10 to 20 
kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.thursday night...west winds 10 to 15 kt veering to east. chance
of rain showers. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.friday...north winds 5 to 10 kt becoming northwest. waves 1 ft
or less. 
.friday night...northeast winds 5 to 10 kt veering to south.
waves 1 ft or less. 
.saturday...south winds 5 to 10 kt. waves 1 to 2 ft. 
.saturday night...southeast winds 10 to 15 kt increasing to 15 to
25 kt. rain showers likely. waves 1 to 3 ft building to 4 to 7 ft
occasionally to 9 ft. 
.sunday...south winds to 30 kt. rain showers likely with a chance
of thunderstorms. waves 6 to 9 ft occasionally to 12 ft building
to 7 to 10 ft occasionally to 13 ft. 
.monday...southwest gales to 35 kt diminishing to 30 kt. chance
of showers. waves 8 to 12 ft occasionally to 16 ft subsiding to
8 to 11 ft occasionally to 14 ft.  

$$

fzus63 kmkx 090157
glflm 
expires:202604090915;;057722

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
857 pm cdt wed apr 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 around 29.7 inches over far western ontario will
track north of lake superior tonight into thursday morning. this 
will result in continued gales into tonight across the northern 
three quarters of the lake.

much lighter westerly winds are then expected thursday in the 
wake of a cold front. light and variable winds will prevail friday 
into saturday, until breezy southerly winds return late in the 
weekend.


lmz669-671-673-675-870-872-874-876-090915-
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 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-
857 pm cdt wed apr 8 2026

sheboygan wi to pentwater mi south to winthrop harbor il to south
haven mi...

...gale warning in effect until 4 am cdt thursday...

.rest of tonight...south gales to 35 kt becoming southwest to
30 kt. scattered rain showers. waves 8 to 11 ft occasionally to
14 ft subsiding to 6 to 9 ft occasionally to 12 ft. 
.thursday...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 1 to
3 ft. 
.thursday night...east winds 5 to 10 kt becoming northeast.
chance of rain showers in the evening, then rain showers
overnight. waves 1 to 2 ft. 
.friday...north winds 5 to 10 kt increasing to 10 to 15 kt.
chance of rain showers in the morning. waves 1 to 2 ft. 
.friday night...northeast winds 5 to 10 kt. waves 1 to 2 ft.
.saturday...east winds 5 to 10 kt becoming southeast. waves 1 to
2 ft. 
.saturday night...southeast winds 10 to 20 kt increasing to 15 to
25 kt. chance of rain showers and thunderstorms. waves 1 to 3 ft
building to 4 to 7 ft occasionally to 9 ft. 
.sunday...south winds to 30 kt. chance of rain showers. waves
6 to 9 ft occasionally to 12 ft building to 7 to 10 ft
occasionally to 13 ft. 
.monday...southwest winds to 30 kt becoming south. chance of
showers. waves 8 to 12 ft occasionally to 16 ft subsiding to 7 to
10 ft occasionally to 13 ft.  

$$

fzus63 kmqt 090201
glfls 
expires:202604090800;;057880

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed apr 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...

a 29.7 inch low continues its track tonight just north of lake 
superior. the low eventually reaches james bay by tomorrow morning 
as high pressure builds back into the upper great lakes tomorrow and 
friday. the high builds to 30.5 inches over the lower great lakes by 
saturday. on sunday, a 29.3 inch low pressure lifts through the 
northern plains while the 30.5 inch high pushes off of the eastern 
seaboard into the atlantic. this low pushes east through the upper 
great lakes sunday night before continuing into northern quebec 
monday.



lsz265-090800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt wed apr 8 2026

.rest of tonight...southwest winds 15 to 25 knots becoming west
20 to 30 knots late. a slight chance of rain showers by midnight.
waves 4 to 7 feet occasionally to 9 feet subsiding to 2 to
4 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots late. waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 2 to 4 feet. 
.thursday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...west winds 10 to 20 knots. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots becoming southeast
10 to 20 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 15 to 25 knots increasing to
20 to 30 knots after midnight. rain showers likely after
midnight. waves building to 4 to 7 feet occasionally to 9 feet. 
.sunday...southeast winds 20 to 30 knots veering south. rain
showers. a chance of thunderstorms. a chance of rain showers.
waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.monday...west winds 20 to 30 knots veering northeast. a chance
of rain showers, then rain showers, possibly mixed with snow.
waves subsiding to 1 to 3 feet, then building to 9 to 12 feet
occasionally to 15 feet. 

$$

fzus63 kmqt 090201
glfls 
expires:202604090800;;057881

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed apr 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...

a 29.7 inch low continues its track tonight just north of lake 
superior. the low eventually reaches james bay by tomorrow morning 
as high pressure builds back into the upper great lakes tomorrow and 
friday. the high builds to 30.5 inches over the lower great lakes by 
saturday. on sunday, a 29.3 inch low pressure lifts through the 
northern plains while the 30.5 inch high pushes off of the eastern 
seaboard into the atlantic. this low pushes east through the upper 
great lakes sunday night before continuing into northern quebec 
monday.



lsz266-090800-
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 wed apr 8 2026

.rest of tonight...southwest winds to 30 knots with a few gale
force gusts to 35 knots possible diminishing to 15 to 25 knots
after midnight, then increasing to 30 knots with a few gale force
gusts to 35 knots possible late. a chance of rain showers by
midnight. waves 7 to 10 feet occasionally to 13 feet subsiding to
4 to 7 feet occasionally to 9 feet, then building to 5 to 8 feet
occasionally to 10 feet. 
.thursday...west winds to 30 knots with a few gale force gusts to
35 knots possible diminishing to 20 to 30 knots in the afternoon.
waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.thursday night...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots backing southeast by
mid afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 15 to 25 knots increasing to
gales to 35 knots after midnight. rain showers likely, possibly
mixed with snow showers after midnight. waves building to 4 to
7 feet occasionally to 9 feet. 
.sunday...southeast winds 20 to 30 knots becoming south gales to
35 knots. rain showers and a chance of thunderstorms. waves
building to 5 to 9 feet occasionally to 11 feet. 
.monday...west winds 20 to 30 knots becoming northeast gales to
35 knots. a chance of rain showers, then rain showers, possibly
mixed with snow. waves subsiding to 3 to 6 feet occasionally to
8 feet, then building to 9 to 12 feet occasionally to 15 feet. 

$$

fzus63 kmqt 090201
glfls 
expires:202604090800;;057882

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed apr 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...

a 29.7 inch low continues its track tonight just north of lake 
superior. the low eventually reaches james bay by tomorrow morning 
as high pressure builds back into the upper great lakes tomorrow and 
friday. the high builds to 30.5 inches over the lower great lakes by 
saturday. on sunday, a 29.3 inch low pressure lifts through the 
northern plains while the 30.5 inch high pushes off of the eastern 
seaboard into the atlantic. this low pushes east through the upper 
great lakes sunday night before continuing into northern quebec 
monday.



lsz267-090800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt wed apr 8 2026

.rest of tonight...south winds to 30 knots with a few gale force
gusts to 35 knots possible veering southwest after midnight, then
diminishing to 15 to 25 knots late. rain showers by midnight,
then a slight chance of rain showers after midnight. waves 5 to
8 feet occasionally to 10 feet subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday...west winds 20 to 30 knots increasing to 30 knots with
a few gale force gusts to 35 knots possible in the afternoon,
then diminishing to 20 to 30 knots late. waves building to 6 to
9 feet occasionally to 11 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.thursday night...west winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight, then backing west late. waves
subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots backing southeast by
mid afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of rain showers, possibly
mixed with snow after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...southeast winds 20 to 30 knots becoming south gales to
35 knots. rain showers and a chance of thunderstorms. waves
building to 6 to 9 feet occasionally to 11 feet. 
.monday...southwest winds 20 to 30 knots becoming east gales to
35 knots. a chance of rain showers, then rain showers, possibly
mixed with snow. waves subsiding to 3 to 6 feet occasionally to
8 feet, then building to 7 to 10 feet occasionally to 13 feet. 

$$

fzus63 kmqt 090201
glfls 
expires:202604090800;;057879

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed apr 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...

a 29.7 inch low continues its track tonight just north of lake 
superior. the low eventually reaches james bay by tomorrow morning 
as high pressure builds back into the upper great lakes tomorrow and 
friday. the high builds to 30.5 inches over the lower great lakes by 
saturday. on sunday, a 29.3 inch low pressure lifts through the 
northern plains while the 30.5 inch high pushes off of the eastern 
seaboard into the atlantic. this low pushes east through the upper 
great lakes sunday night before continuing into northern quebec 
monday.



lsz264-090800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt wed apr 8 2026

...gale warning in effect from 4 am to 10 am edt thursday...

.rest of tonight...southwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight, then becoming west gales to
35 knots late. waves 6 to 9 feet occasionally to 11 feet
subsiding to 4 to 7 feet occasionally to 9 feet, then building to
6 to 9 feet occasionally to 11 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots late. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.thursday night...west winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...southwest winds less than 10 knots becoming southeast
5 to 15 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 15 to 25 knots. rain showers
likely after midnight. waves building to 4 to 7 feet occasionally
to 9 feet. 
.sunday...southeast winds 20 to 30 knots veering south. rain
showers. a chance of thunderstorms. a chance of rain showers.
waves building to 4 to 8 feet occasionally to 10 feet. 
.monday...west winds 20 to 30 knots becoming northeast gales to
35 knots. a chance of rain showers. a chance of snow showers.
waves subsiding to 3 to 5 feet occasionally to 7 feet, then
building to 9 to 12 feet occasionally to 15 feet. 

$$

fzus63 kmqt 090201
glfls 
expires:202604090800;;057878

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed apr 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...

a 29.7 inch low continues its track tonight just north of lake 
superior. the low eventually reaches james bay by tomorrow morning 
as high pressure builds back into the upper great lakes tomorrow and 
friday. the high builds to 30.5 inches over the lower great lakes by 
saturday. on sunday, a 29.3 inch low pressure lifts through the 
northern plains while the 30.5 inch high pushes off of the eastern 
seaboard into the atlantic. this low pushes east through the upper 
great lakes sunday night before continuing into northern quebec 
monday.



lsz263-090800-
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 wed apr 8 2026

.rest of tonight...southwest winds 10 to 20 knots increasing to
30 knots with a few gale force gusts to 35 knots possible after
midnight, then veering west late. a slight chance of rain showers
by midnight. waves 3 to 5 feet occasionally to 7 feet building to
6 to 9 feet occasionally to 11 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots late. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.thursday night...west winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.saturday...south winds less than 10 knots becoming east 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of rain showers through
midnight, then rain showers after midnight. waves building to
3 to 5 feet occasionally to 7 feet. 
.sunday...southeast winds 15 to 25 knots becoming southwest 20 to
30 knots. rain showers and a chance of thunderstorms. waves
building to 3 to 6 feet occasionally to 8 feet. 
.monday...west winds 20 to 30 knots becoming northeast gales to
35 knots. a chance of rain showers, then rain showers, possibly
mixed with snow. waves subsiding to 3 to 5 feet occasionally to
7 feet, then building to 10 to 14 feet occasionally to 18 feet. 

$$

fzus63 kmqt 090201
glfls 
expires:202604090800;;057877

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed apr 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...

a 29.7 inch low continues its track tonight just north of lake 
superior. the low eventually reaches james bay by tomorrow morning 
as high pressure builds back into the upper great lakes tomorrow and 
friday. the high builds to 30.5 inches over the lower great lakes by 
saturday. on sunday, a 29.3 inch low pressure lifts through the 
northern plains while the 30.5 inch high pushes off of the eastern 
seaboard into the atlantic. this low pushes east through the upper 
great lakes sunday night before continuing into northern quebec 
monday.



lsz162-090800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt wed apr 8 2026 /900 pm cdt wed apr 8 2026/

.rest of tonight...southwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight, then veering west late. a slight
chance of rain showers by midnight. waves 1 to 3 feet building to
3 to 6 feet occasionally to 8 feet. 
.thursday...west winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.thursday night...west winds 5 to 15 knots veering northwest
late. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots veering northwest after
midnight. waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.saturday night...east winds 10 to 20 knots. a chance of rain
showers through midnight. a chance of thunderstorms. rain showers
after midnight. waves building to 2 to 4 feet. 
.sunday...east winds 10 to 20 knots becoming southwest 15 to
25 knots. rain showers. waves subsiding to 1 to 3 feet, then
building to 3 to 6 feet occasionally to 8 feet. 
.monday...west winds 15 to 25 knots becoming northeast gales to
35 knots. a chance of rain showers, then rain showers, possibly
mixed with snow. waves subsiding to 2 to 4 feet, then building to
10 to 14 feet occasionally to 18 feet. 

$$