fzus63 kdtx 120128
glflh 
expires:202610120930;;943246

open lake forecast for lake huron
national weather service detroit/pontiac mi
928 pm edt sun oct 11 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...low pressure, 29.60 inches, will then push from the
central plains into the great lakes tomorrow morning, bringing
the next potential for rain showers and isolated thunderstorms.
departure of this system will then facilitate the passage of a
cold front wednesday morning, bringing breezy northwest flow
across northern lake huron.


lhz361-120930-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
928 pm edt sun oct 11 2026

.rest of tonight...south winds 5 to 10 knots. waves 1 to 3 feet. 
.monday...light and variable winds becoming east 5 to 10 knots in
the afternoon. waves 2 feet or less. 
.monday night...east winds 10 to 15 knots. waves 2 to 4 feet. 
.tuesday...east winds 10 to 15 knots backing to the north early
in the afternoon. rain. waves 1 to 3 feet. 
.tuesday night...northwest winds 5 to 10 knots increasing to
10 to 15 knots after midnight. waves 2 feet or less. 
.wednesday...northwest winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon...then becoming north 10 to
15 knots late in the evening. waves 1 to 3 feet. 
.thursday...northeast winds 5 to 10 knots veering to the east
early in the evening...then becoming southeast 10 to 15 knots by
midnight. rain likely by midnight. waves 1 to 3 feet building to
2 to 4 feet . 
.friday...south winds 15 to 20 knots with gusts to around
30 knots becoming west 20 to 25 knots with gusts to 45 knot gales
in the late morning and early afternoon...then becoming northwest
to 30 knots with gusts to 45 knot gales . rain likely until
afternoon...then a chance of rain early in the evening. waves
4 to 6 feet building to 8 to 12 feet . waves occasionally around
15 feet. 


$$

fzus63 kdtx 120128
glflh 
expires:202610120930;;943247

open lake forecast for lake huron
national weather service detroit/pontiac mi
928 pm edt sun oct 11 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...low pressure, 29.60 inches, will then push from the
central plains into the great lakes tomorrow morning, bringing
the next potential for rain showers and isolated thunderstorms.
departure of this system will then facilitate the passage of a
cold front wednesday morning, bringing breezy northwest flow
across northern lake huron.


lhz362-363-120930-
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-
928 pm edt sun oct 11 2026

.rest of tonight...south winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 1 to 3 feet. 
.monday...southwest winds 5 to 10 knots backing to the east late
in the afternoon. waves 1 to 3 feet. 
.monday night...east winds 10 to 15 knots. a chance of rain after
midnight. waves 1 to 3 feet building to 2 to 4 feet in the late
evening and overnight. 
.tuesday...east winds 10 to 15 knots. rain in the morning...then
a chance of rain in the afternoon. waves 1 to 3 feet. 
.tuesday night...northwest winds 10 to 15 knots. waves 2 to
4 feet subsiding to 1 to 3 feet after midnight. 
.wednesday...northwest winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon. waves 1 to 3 feet building to
2 to 4 feet late in the afternoon. 
.thursday...north winds 10 to 15 knots becoming east 5 to
10 knots until early evening...then becoming southeast 10 to
15 knots by midnight. rain likely by midnight. waves 2 to 4 feet
building to 3 to 5 feet . 
.friday...south winds 15 to 20 knots becoming west to 30 knots
with gusts to 45 knot gales in the late morning and early
afternoon...then becoming northwest at 35 knot gales with storm
force gusts to 50 knots . rain likely. waves 6 to 9 feet building
to 10 to 14 feet . waves occasionally around 18 feet. a gale
warning may be needed. 


$$

fzus63 kdtx 120128
glflh 
expires:202610120930;;943248

open lake forecast for lake huron
national weather service detroit/pontiac mi
928 pm edt sun oct 11 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...low pressure, 29.60 inches, will then push from the
central plains into the great lakes tomorrow morning, bringing
the next potential for rain showers and isolated thunderstorms.
departure of this system will then facilitate the passage of a
cold front wednesday morning, bringing breezy northwest flow
across northern lake huron.


lhz462>464-120930-
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-
928 pm edt sun oct 11 2026

.rest of tonight...south winds 5 to 10 knots veering to the
southwest early in the morning. waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots becoming south 10 to
15 knots in the afternoon. waves 1 to 3 feet. 
.monday night...south winds 10 to 15 knots. a chance of rain
after midnight. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.tuesday...southwest winds 10 to 15 knots. a chance of rain.
waves 1 to 3 feet. 
.tuesday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots in the late evening and overnight. waves 2 to
4 feet. 
.wednesday...northwest winds 10 to 15 knots becoming north 15 to
20 knots late in the evening. waves 1 to 3 feet building to 2 to
4 feet late in the evening. 
.thursday...north winds 10 to 15 knots becoming northeast 5 to
10 knots in the late morning and early afternoon...then becoming
east 10 to 15 knots early in the evening veering to the southeast
by midnight. rain likely by midnight. waves 3 to 5 feet. 
.friday...south winds 15 to 20 knots becoming west 20 to 25 knots
with gusts to 40 knot gales in the late morning and early
afternoon...then becoming northwest at 35 knot gales with gusts
to 45 knot gales . rain likely. waves 5 to 7 feet building to
10 to 14 feet . waves occasionally around 18 feet. a gale warning
may be needed. 


$$

fzus63 kmkx 120645
glflm 
expires:202610121515;;956514

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
145 am cdt mon oct 12 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...

broad low pressure around 29.5 inches over the central plains to
minnesota will drive south-southwesterly winds into today. this 
low is expected to lift into minnesota and eventually central 
wisconsin by this evening. expecting scattered showers and 
isolated thunderstorms to develop tonight as the low approaches 
and crosses the open waters. winds shift to northwesterly on 
tuesday as an associated cold front crosses the lake and the low 
pressure exits east. the front may stall just south of the lake 
tuesday night, with a light northerly breeze across the lake and 
shower / thunderstorm potential towards the southern end of the 
lake. 

high pressure around 30.2 inches building into the northern plains
will keep winds northerly into wednesday, turning northeasterly
wednesday night and easterly into thursday as the high pressure
passes north of the lake and low pressure of 29.9 inches develops
near missouri / illinois. 

low pressure looks to cross lake michigan thursday night, with
strong high pressure descending from western canada into the
dakotas / nebraska into friday. the pressure gradient between
these two systems will drive strong northwest winds across the 
lake friday through friday night, with confidence increasing for a
period of sustained gales. depending on the central pressures of
the low, high & affiliated pressure gradient, a few gusts
approaching storm force could be possible. will be monitoring
trends for possible headlines over coming updates. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-121515-
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-
145 am cdt mon oct 12 2026

sheboygan wi to pentwater mi south...

.today...southwest winds 10 to 20 kt becoming south. waves 3 to
5 ft. 
.tonight...south winds 10 to 20 kt becoming southwest 15 to
25 kt. slight chance of showers and thunderstorms. waves 3 to
5 ft building to 4 to 6 ft occasionally to 8 ft. 
.tuesday...west winds 15 to 25 kt becoming northwest 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.tuesday night...north winds 10 to 15 kt. chance of showers.
waves 2 to 4 ft subsiding to 1 to 3 ft. 
.wednesday...northeast winds 10 to 20 kt becoming north. chance
of showers. waves 3 to 5 ft. 
.wednesday night...northeast winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.thursday...east winds 15 to 25 kt diminishing to 10 to 20 kt.
showers likely. waves 4 to 6 ft occasionally to 8 ft. 
.friday...northwest gales to 45 kt. chance of showers. waves 10 
to 14 ft occasionally to 18 ft building to 14 to 18 ft 
occasionally to 23 ft. 

$$

fzus63 kmkx 120645
glflm 
expires:202610121515;;956513

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
145 am cdt mon oct 12 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...

broad low pressure around 29.5 inches over the central plains to
minnesota will drive south-southwesterly winds into today. this 
low is expected to lift into minnesota and eventually central 
wisconsin by this evening. expecting scattered showers and 
isolated thunderstorms to develop tonight as the low approaches 
and crosses the open waters. winds shift to northwesterly on 
tuesday as an associated cold front crosses the lake and the low 
pressure exits east. the front may stall just south of the lake 
tuesday night, with a light northerly breeze across the lake and 
shower / thunderstorm potential towards the southern end of the 
lake. 

high pressure around 30.2 inches building into the northern plains
will keep winds northerly into wednesday, turning northeasterly
wednesday night and easterly into thursday as the high pressure
passes north of the lake and low pressure of 29.9 inches develops
near missouri / illinois. 

low pressure looks to cross lake michigan thursday night, with
strong high pressure descending from western canada into the
dakotas / nebraska into friday. the pressure gradient between
these two systems will drive strong northwest winds across the 
lake friday through friday night, with confidence increasing for a
period of sustained gales. depending on the central pressures of
the low, high & affiliated pressure gradient, a few gusts
approaching storm force could be possible. will be monitoring
trends for possible headlines over coming updates. 


lmz261-362-364-366-563-565-567-868-121515-
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-
145 am cdt mon oct 12 2026

sheboygan wi to pentwater mi north...

.today...southwest winds 10 to 20 kt becoming southeast. waves
3 to 5 ft. 
.tonight...southeast winds 15 to 25 kt becoming south to 30 kt.
chance of showers and thunderstorms. waves 3 to 5 ft.
.tuesday...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. chance of showers in the morning. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.tuesday night...north winds 10 to 15 kt. waves 1 to 3 ft. 
.wednesday...north winds 10 to 20 kt. waves 2 to 4 ft. 
.wednesday night...north winds 10 to 20 kt becoming northeast.
waves 2 to 4 ft. 
.thursday...east winds 10 to 20 kt becoming southeast 10 to
15 kt. chance of rain showers. waves 2 to 4 ft. 
.friday...northwest gales to 45 kt. chance of showers. waves 8 to
11 ft occasionally to 14 ft building to 10 to 14 ft occasionally 
to 18 ft. 

$$

fzus63 kmqt 120201
glfls 
expires:202610120800;;943939

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun oct 11 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...

lake superior is currently under a 29.8 inch trough associated with 
a 29.5 inch colorado low. to the north, a 30.4 inch high is moving 
into hudson bay from northern manitoba. by monday afternoon, the 
high will weaken to 30.2 inches along the hudson bay shore of 
northern ontario while the colorado low moves to the missouri river 
basin, weakening to 29.6 inches. this low weakens further to 29.7 
inches over northern lake michigan tuesday morning as the high 
shifts into quebec. ridging dominates over lake superior as the low 
continues marching east and high pressure of 30.2 inches builds over 
the dakotas by wednesday afternoon. the high further builds to 30.3 
inches over the lake wednesday night while a 29.9 inch low develops 
over saskatchewan. by thursday evening, this low weakens to 30.0 
inches over northern ontario as the high moves to new england. 
behind the low, a 30.7 inch high builds over eastern montana before 
expanding over the plains for friday.




lsz264-120800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt sun oct 11 2026

.rest of tonight...northeast winds 15 to 25 knots increasing to
20 to 30 knots after midnight. a chance of showers after
midnight. waves 2 to 4 feet building to 7 to 10 feet occasionally
to 13 feet. 
.monday...northeast winds 20 to 30 knots veering east in the
afternoon. showers through early afternoon, then a chance of
showers by mid afternoon. waves subsiding to 5 to 8 feet
occasionally to 10 feet. 
.monday night...east winds 20 to 30 knots diminishing to 15 to
25 knots after midnight, then backing northeast late. a chance of
showers. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday...northeast winds 10 to 20 knots becoming north 5 to
15 knots by mid afternoon. a chance of showers through early
afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.wednesday...northwest winds 10 to 20 knots. waves building to
1 to 3 feet, then subsiding to calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots becoming west gales to
45 knots. a chance of showers. waves building to 6 to 9 feet
occasionally to 11 feet. 
.friday...north gales to 45 knots. a chance of rain showers.
waves building to 11 to 15 feet occasionally to 19 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202610120800;;943940

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun oct 11 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...

lake superior is currently under a 29.8 inch trough associated with 
a 29.5 inch colorado low. to the north, a 30.4 inch high is moving 
into hudson bay from northern manitoba. by monday afternoon, the 
high will weaken to 30.2 inches along the hudson bay shore of 
northern ontario while the colorado low moves to the missouri river 
basin, weakening to 29.6 inches. this low weakens further to 29.7 
inches over northern lake michigan tuesday morning as the high 
shifts into quebec. ridging dominates over lake superior as the low 
continues marching east and high pressure of 30.2 inches builds over 
the dakotas by wednesday afternoon. the high further builds to 30.3 
inches over the lake wednesday night while a 29.9 inch low develops 
over saskatchewan. by thursday evening, this low weakens to 30.0 
inches over northern ontario as the high moves to new england. 
behind the low, a 30.7 inch high builds over eastern montana before 
expanding over the plains for friday.




lsz265-120800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt sun oct 11 2026

.rest of tonight...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then veering northeast late. waves calm
to 2 feet building to 3 to 6 feet occasionally to 8 feet. 
.monday...east winds 20 to 30 knots. a chance of showers. waves
building to 5 to 9 feet occasionally to 11 feet. 
.monday night...east winds 20 to 30 knots backing northeast late.
showers and a slight chance of thunderstorms. waves subsiding to
3 to 6 feet occasionally to 8 feet. 
.tuesday...north winds 15 to 25 knots becoming northwest 10 to
20 knots by mid afternoon. a chance of showers through early
afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.wednesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.wednesday night...north winds 10 to 20 knots veering northeast
after midnight. waves subsiding to calm to 2 feet. 
.thursday...southeast winds 10 to 20 knots becoming west gales to
45 knots. showers likely. waves building to 7 to 10 feet
occasionally to 13 feet. 
.friday...north storm force winds to 50 knots diminishing to
gales to 45 knots. rain showers likely. waves building to 15 to
20 feet occasionally to 25 feet, then subsiding to 8 to 11 feet
occasionally to 14 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202610120800;;943941

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun oct 11 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...

lake superior is currently under a 29.8 inch trough associated with 
a 29.5 inch colorado low. to the north, a 30.4 inch high is moving 
into hudson bay from northern manitoba. by monday afternoon, the 
high will weaken to 30.2 inches along the hudson bay shore of 
northern ontario while the colorado low moves to the missouri river 
basin, weakening to 29.6 inches. this low weakens further to 29.7 
inches over northern lake michigan tuesday morning as the high 
shifts into quebec. ridging dominates over lake superior as the low 
continues marching east and high pressure of 30.2 inches builds over 
the dakotas by wednesday afternoon. the high further builds to 30.3 
inches over the lake wednesday night while a 29.9 inch low develops 
over saskatchewan. by thursday evening, this low weakens to 30.0 
inches over northern ontario as the high moves to new england. 
behind the low, a 30.7 inch high builds over eastern montana before 
expanding over the plains for friday.




lsz266-120800-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1001 pm edt sun oct 11 2026

.rest of tonight...south winds 10 to 20 knots becoming northeast
20 to 30 knots after midnight. a slight chance of showers after
midnight. waves 1 to 3 feet building to 5 to 8 feet occasionally
to 10 feet. 
.monday...east winds 20 to 30 knots. a chance of showers. waves
building to 6 to 10 feet occasionally to 13 feet. 
.monday night...east winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. a chance of showers through midnight. a
slight chance of thunderstorms. showers likely after midnight.
waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday...northeast winds 15 to 25 knots becoming north 10 to
20 knots by mid afternoon. a chance of showers through early
afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves building to 2 to 4 feet. 
.wednesday...northwest winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet. 
.wednesday night...north winds 10 to 20 knots veering northeast
after midnight. waves subsiding to calm to 2 feet. 
.thursday...southeast winds 10 to 20 knots becoming south gales
to 45 knots. showers likely. waves building to 7 to 10 feet
occasionally to 13 feet. 
.friday...north gales to 45 knots. a chance of rain showers.
waves building to 15 to 20 feet occasionally to 25 feet, then
subsiding to 9 to 12 feet occasionally to 15 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202610120800;;943942

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun oct 11 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...

lake superior is currently under a 29.8 inch trough associated with 
a 29.5 inch colorado low. to the north, a 30.4 inch high is moving 
into hudson bay from northern manitoba. by monday afternoon, the 
high will weaken to 30.2 inches along the hudson bay shore of 
northern ontario while the colorado low moves to the missouri river 
basin, weakening to 29.6 inches. this low weakens further to 29.7 
inches over northern lake michigan tuesday morning as the high 
shifts into quebec. ridging dominates over lake superior as the low 
continues marching east and high pressure of 30.2 inches builds over 
the dakotas by wednesday afternoon. the high further builds to 30.3 
inches over the lake wednesday night while a 29.9 inch low develops 
over saskatchewan. by thursday evening, this low weakens to 30.0 
inches over northern ontario as the high moves to new england. 
behind the low, a 30.7 inch high builds over eastern montana before 
expanding over the plains for friday.




lsz267-120800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt sun oct 11 2026

.rest of tonight...south winds 10 to 20 knots becoming northeast
15 to 25 knots late. waves 1 to 3 feet subsiding to calm to
2 feet, then building to 3 to 6 feet occasionally to 8 feet. 
.monday...east winds 20 to 30 knots diminishing to 15 to 25 knots
in the afternoon, then increasing to 20 to 30 knots late. a
chance of showers. waves building to 4 to 8 feet occasionally to
10 feet. 
.monday night...east winds 15 to 25 knots. a chance of showers
through midnight, then showers and a slight chance of
thunderstorms after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.tuesday...northeast winds 10 to 20 knots backing north by mid
afternoon. showers likely through early afternoon, then a slight
chance of showers by mid afternoon. waves subsiding to 1 to
3 feet. 
.tuesday night...northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves subsiding to calm to 2 feet,
then building to 2 to 4 feet. 
.wednesday...northwest winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.wednesday night...north winds 15 to 25 knots becoming northeast
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.thursday...southeast winds 10 to 20 knots becoming south gales
to 35 knots. showers likely. waves building to 5 to 8 feet
occasionally to 10 feet. 
.friday...northwest gales to 45 knots veering north. rain showers
likely. waves building to 15 to 20 feet occasionally to 25 feet,
then subsiding to 9 to 12 feet occasionally to 15 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202610120800;;943937

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun oct 11 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...

lake superior is currently under a 29.8 inch trough associated with 
a 29.5 inch colorado low. to the north, a 30.4 inch high is moving 
into hudson bay from northern manitoba. by monday afternoon, the 
high will weaken to 30.2 inches along the hudson bay shore of 
northern ontario while the colorado low moves to the missouri river 
basin, weakening to 29.6 inches. this low weakens further to 29.7 
inches over northern lake michigan tuesday morning as the high 
shifts into quebec. ridging dominates over lake superior as the low 
continues marching east and high pressure of 30.2 inches builds over 
the dakotas by wednesday afternoon. the high further builds to 30.3 
inches over the lake wednesday night while a 29.9 inch low develops 
over saskatchewan. by thursday evening, this low weakens to 30.0 
inches over northern ontario as the high moves to new england. 
behind the low, a 30.7 inch high builds over eastern montana before 
expanding over the plains for friday.




lsz162-120800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt sun oct 11 2026 /901 pm cdt sun oct 11 2026/

...gale warning in effect from 5 am edt /4 am cdt/ monday through
late monday night...

.rest of tonight...northeast winds 15 to 25 knots increasing to
gales to 35 knots. a slight chance of showers after midnight.
waves 1 to 3 feet building to 6 to 9 feet occasionally to
11 feet. 
.monday...northeast gales to 40 knots. a chance of showers. waves
building to 8 to 12 feet occasionally to 15 feet. 
.monday night...northeast gales to 35 knots diminishing to 20 to
30 knots late. a slight chance of thunderstorms through midnight.
a chance of showers. waves subsiding to 5 to 8 feet occasionally
to 10 feet. 
.tuesday...northeast winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. a slight chance of showers through
early afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.wednesday...northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots becoming west gales to
40 knots. a chance of showers. waves building to 4 to 7 feet
occasionally to 9 feet. 
.friday...northwest gales to 45 knots. waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202610120800;;943938

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun oct 11 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...

lake superior is currently under a 29.8 inch trough associated with 
a 29.5 inch colorado low. to the north, a 30.4 inch high is moving 
into hudson bay from northern manitoba. by monday afternoon, the 
high will weaken to 30.2 inches along the hudson bay shore of 
northern ontario while the colorado low moves to the missouri river 
basin, weakening to 29.6 inches. this low weakens further to 29.7 
inches over northern lake michigan tuesday morning as the high 
shifts into quebec. ridging dominates over lake superior as the low 
continues marching east and high pressure of 30.2 inches builds over 
the dakotas by wednesday afternoon. the high further builds to 30.3 
inches over the lake wednesday night while a 29.9 inch low develops 
over saskatchewan. by thursday evening, this low weakens to 30.0 
inches over northern ontario as the high moves to new england. 
behind the low, a 30.7 inch high builds over eastern montana before 
expanding over the plains for friday.




lsz263-120800-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1001 pm edt sun oct 11 2026

...gale warning in effect from 5 am edt monday through monday
morning...

.rest of tonight...northeast winds 15 to 25 knots increasing to
gales to 35 knots. a slight chance of showers after midnight.
waves 2 to 4 feet building to 7 to 10 feet occasionally to
13 feet. 
.monday...northeast gales to 35 knots diminishing to 20 to
30 knots late. a chance of showers. waves building to 7 to
11 feet occasionally to 14 feet. 
.monday night...northeast winds 20 to 30 knots. a slight chance
of thunderstorms through midnight. a chance of showers. waves
subsiding to 5 to 8 feet occasionally to 10 feet. 
.tuesday...northeast winds 10 to 20 knots becoming northwest 5 to
15 knots by mid afternoon. a slight chance of showers through
early afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 5 to 15 knots. waves subsiding
to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots. waves calm to 2 feet.
.wednesday night...north winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.thursday...south winds 15 to 25 knots becoming west gales to
40 knots. a chance of rain showers. waves building to 7 to
10 feet occasionally to 13 feet. 
.friday...north gales to 45 knots. waves building to 10 to
14 feet occasionally to 18 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 

$$