fzus63 kdtx 141930
glflh 
expires:202510150330;;136852

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 pm edt tue oct 14 2025

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 cold front will veer wind direction from northwest
to northeast tonight. expansive high pressure, 30.30 inches, will
then build into the great lakes today through tomorrow and last
through thursday.


lhz361-150330-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
330 pm edt tue oct 14 2025

.tonight...northwest winds 15 to 20 knots becoming north 10 to
15 knots in the late evening and early morning...then decreasing
to 5 to 10 knots early in the morning. waves 3 to 5 feet
subsiding to 1 to 3 feet early in the morning. 
.wednesday...northeast winds 5 to 10 knots in the morning
becoming light and variable. waves 2 feet or less. 
.wednesday night...northwest winds 5 to 10 knots. waves 2 feet or
less. 
.thursday...light and variable winds. waves 2 feet or less. 
.thursday night...light and variable winds becoming southeast
5 to 10 knots in the late evening and overnight. a chance of
rain. waves 2 feet or less. 
.friday...south winds 10 to 15 knots. rain...then rain likely
late in the afternoon. waves 1 to 3 feet building to 2 to 4 feet.
.saturday...south winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then veering to the west in the
late evening and early morning. rain likely. waves 2 to 4 feet
subsiding to 1 to 3 feet until early morning. 
.sunday...west winds 5 to 10 knots increasing to 15 to 20 knots.
rain likely...then a chance of rain in the late evening and early
morning. waves 1 to 3 feet building to 4 to 6 feet. waves
occasionally around 8 feet. 


$$

fzus63 kdtx 141930
glflh 
expires:202510150330;;136853

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 pm edt tue oct 14 2025

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 cold front will veer wind direction from northwest
to northeast tonight. expansive high pressure, 30.30 inches, will
then build into the great lakes today through tomorrow and last
through thursday.


lhz362-363-150330-
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-
330 pm edt tue oct 14 2025

.tonight...northwest winds 15 to 20 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.wednesday...north winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and afternoon. waves 3 to 5 feet
subsiding to 1 to 3 feet in the afternoon. 
.wednesday night...north winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.thursday night...light and variable winds becoming southeast
5 to 10 knots in the late evening and overnight. a chance of rain
after midnight. waves 2 feet or less. 
.friday...south winds 10 to 15 knots increasing to 15 to
20 knots. a chance of rain in the morning...then rain likely late
in the morning. a chance of rain late in the afternoon. waves
3 to 5 feet. 
.saturday...south winds 15 to 20 knots becoming southwest 10 to
15 knots until early morning. a chance of rain early in the
morning...then rain likely. waves 3 to 5 feet. 
.sunday...southwest winds 10 to 15 knots becoming west 15 to
20 knots until early evening...then increasing to 20 to 25 knots
in the late evening and early morning. rain likely...then a
chance of rain in the late evening and early morning. waves 2 to
4 feet building to 6 to 9 feet. waves occasionally around
12 feet. 


$$

fzus63 kdtx 141930
glflh 
expires:202510150330;;136854

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 pm edt tue oct 14 2025

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 cold front will veer wind direction from northwest
to northeast tonight. expansive high pressure, 30.30 inches, will
then build into the great lakes today through tomorrow and last
through thursday.


lhz462>464-150330-
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-
330 pm edt tue oct 14 2025

.tonight...north winds 15 to 20 knots decreasing to 10 to
15 knots early in the morning. a chance of rain after midnight.
waves 4 to 6 feet. 
.wednesday...north winds 10 to 15 knots. waves 3 to 5 feet. waves
occasionally around 8 feet. 
.wednesday night...north winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. 
.thursday...north winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...light and variable winds becoming southeast
5 to 10 knots after midnight. a chance of rain after midnight.
waves 2 feet or less. 
.friday...south winds 5 to 10 knots increasing to 15 to 20 knots.
a chance of rain...then rain likely late in the afternoon. waves
1 to 3 feet building to 3 to 5 feet. 
.saturday...south winds 15 to 20 knots decreasing to 10 to
15 knots until early morning. a chance of rain early in the
morning. a chance of rain early in the evening...then rain in the
late evening and early morning. waves 3 to 5 feet subsiding to
1 to 3 feet in the late evening and early morning. 
.sunday...southwest winds 10 to 15 knots becoming west 20 to
25 knots with gusts to around 30 knots. rain likely. waves 2 to
4 feet building to 6 to 9 feet. waves occasionally around
12 feet. 


$$

fzus63 kmkx 141952
glflm 
expires:202510150345;;137576

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
252 pm cdt tue oct 14 2025

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 of 30.5 inches over northern minnesota will sink
southeastward into the upper great lakes region through thursday
morning. as this happens, breezy north winds will occur tonight,
with speeds easing going into wednesday. winds remain light going
into thursday, but should come around to southeasterly and become
breezy again thursday night into friday morning as low pressure of
29.3 inches moves into south central canada.


lmz261-362-364-366-563-565-567-868-150345-
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-
252 pm cdt tue oct 14 2025

sheboygan wi to pentwater mi north...

.tonight...north winds 10 to 20 kt becoming northeast. chance of
showers this evening, then showers likely overnight. waves 4 to
6 ft occasionally to 8 ft. 
.wednesday...northeast winds 10 to 15 kt becoming north. waves
3 to 5 ft subsiding to 1 to 2 ft. 
.wednesday night...north winds 10 to 15 kt veering to east. waves
1 to 2 ft. 
.thursday...southeast winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 3 ft building to 3 to 5 ft. 
.thursday night...south winds 10 to 20 kt increasing to 15 to
25 kt. showers likely. waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft. 
.friday...south winds to 30 kt. chance of showers. waves 7 to
10 ft occasionally to 13 ft. 
.friday night...south winds to 30 kt diminishing to 15 to 25 kt.
showers likely. waves 7 to 10 ft occasionally to 13 ft. 
.saturday...southwest winds 10 to 20 kt increasing to 15 to
25 kt. showers likely. waves 4 to 7 ft occasionally to 9 ft
subsiding to 4 to 6 ft occasionally to 8 ft. 
.sunday...northwest winds to 30 kt increasing to gales to 35 kt.
chance of showers. waves 4 to 7 ft occasionally to 9 ft building
to 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 141952
glflm 
expires:202510150345;;137577

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
252 pm cdt tue oct 14 2025

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 of 30.5 inches over northern minnesota will sink
southeastward into the upper great lakes region through thursday
morning. as this happens, breezy north winds will occur tonight,
with speeds easing going into wednesday. winds remain light going
into thursday, but should come around to southeasterly and become
breezy again thursday night into friday morning as low pressure of
29.3 inches moves into south central canada.


lmz080-669-671-673-675-777-779-870-872-874-876-878-150345-
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-
252 pm cdt tue oct 14 2025

sheboygan wi to pentwater mi south...

.tonight...north winds 15 to 25 kt becoming northeast 10 to
20 kt. slight chance of showers this evening, then chance of
showers overnight. waves 4 to 7 ft occasionally to 9 ft. 
.wednesday...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. chance of showers in the morning. waves 4 to 7 ft
occasionally to 9 ft subsiding to 1 to 3 ft. 
.wednesday night...northeast winds 10 to 15 kt veering to east.
waves 1 to 3 ft. 
.thursday...southeast winds 10 to 20 kt. waves 2 to 4 ft building
to 3 to 5 ft. 
.thursday night...southeast winds 10 to 20 kt becoming south
15 to 25 kt. chance of showers. waves 3 to 5 ft building to 4 to
7 ft occasionally to 9 ft. 
.friday...south winds to 30 kt. chance of showers in the
afternoon. waves 7 to 10 ft occasionally to 13 ft. 
.friday night...south winds to 30 kt diminishing to 15 to 25 kt.
chance of showers. waves 6 to 9 ft occasionally to 12 ft. 
.saturday...southwest winds 10 to 20 kt increasing to 15 to
25 kt. showers likely. waves 5 to 8 ft occasionally to 10 ft
subsiding to 4 to 7 ft occasionally to 9 ft. 
.sunday...northwest winds to 30 kt increasing to gales to 35 kt.
chance of showers. waves 8 to 11 ft occasionally to 14 ft
building to 12 to 16 ft occasionally to 21 ft.  

$$

fzus63 kmqt 142001
glfls 
expires:202510150800;;137962

open lake forecast for lake superior
national weather service marquette mi
401 pm edt tue oct 14 2025

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 30.4 inch high builds into lake superior today. this high shifts 
across the great lakes and northern ontario by wednesday at around 
30.3 inches. ridging weakens to 30.1 inches over lake superior 
through thursday as troughing develops over the plains and the 
parent high moves east. thursday night through friday, a deepening 
29.3 inch low develops over the northern plains and lifts near to 
lake winnipeg. this low is projected to bring 29.5 to 29.6 inch 
troughing over lake superior friday night and saturday as the low 
moves to hudson bay. by sunday afternoon, another low develops over 
lower michigan, then lifts north into ontario and quebec as 29.7 
inch ridging builds over lake superior.



lsz162-150800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt tue oct 14 2025 /301 pm cdt tue oct 14 2025/

.late this afternoon...southwest winds 5 to 15 knots. a slight
chance of showers. waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots backing southeast after
midnight, then backing east late. a slight chance of showers
through midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots veering southeast
late. a slight chance of showers after midnight. waves calm to
2 feet. 
.thursday...southeast winds 10 to 20 knots. showers. waves calm
to 2 feet. 
.thursday night...southeast winds 10 to 20 knots veering south
after midnight. showers likely through midnight, then a chance of
showers after midnight. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.friday...south winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. a chance of showers. waves building to 1 to
3 feet. 
.friday night...southwest winds 15 to 25 knots. a chance of
showers through midnight. waves 1 to 3 feet. 
.saturday...west winds 15 to 25 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.sunday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 142001
glfls 
expires:202510150800;;137963

open lake forecast for lake superior
national weather service marquette mi
401 pm edt tue oct 14 2025

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 30.4 inch high builds into lake superior today. this high shifts 
across the great lakes and northern ontario by wednesday at around 
30.3 inches. ridging weakens to 30.1 inches over lake superior 
through thursday as troughing develops over the plains and the 
parent high moves east. thursday night through friday, a deepening 
29.3 inch low develops over the northern plains and lifts near to 
lake winnipeg. this low is projected to bring 29.5 to 29.6 inch 
troughing over lake superior friday night and saturday as the low 
moves to hudson bay. by sunday afternoon, another low develops over 
lower michigan, then lifts north into ontario and quebec as 29.7 
inch ridging builds over lake superior.



lsz263-150800-
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-
401 pm edt tue oct 14 2025

.late this afternoon...north winds less than 10 knots. waves calm
to 2 feet. 
.tonight...west winds less than 10 knots. a slight chance of
showers through midnight. waves calm to 2 feet. 
.wednesday...west winds less than 10 knots becoming southwest
5 to 15 knots late. waves calm to 2 feet. 
.wednesday night...southwest winds less than 10 knots becoming
southeast 5 to 15 knots after midnight, then veering south late.
waves calm to 2 feet. 
.thursday...south winds 10 to 20 knots backing southeast by mid
afternoon. a chance of showers through early afternoon, then
showers likely by mid afternoon. waves building to 1 to 3 feet. 
.thursday night...south winds 10 to 20 knots. showers likely.
waves 1 to 3 feet. 
.friday...south winds 10 to 20 knots. a chance of showers. waves
1 to 3 feet. 
.friday night...south winds 15 to 25 knots veering southwest
after midnight. a chance of showers. waves building to 2 to
4 feet. 
.saturday...west gales to 35 knots diminishing to 15 to 25 knots.
waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday...west gales to 35 knots becoming northwest 20 to
30 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 142001
glfls 
expires:202510150800;;137964

open lake forecast for lake superior
national weather service marquette mi
401 pm edt tue oct 14 2025

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 30.4 inch high builds into lake superior today. this high shifts 
across the great lakes and northern ontario by wednesday at around 
30.3 inches. ridging weakens to 30.1 inches over lake superior 
through thursday as troughing develops over the plains and the 
parent high moves east. thursday night through friday, a deepening 
29.3 inch low develops over the northern plains and lifts near to 
lake winnipeg. this low is projected to bring 29.5 to 29.6 inch 
troughing over lake superior friday night and saturday as the low 
moves to hudson bay. by sunday afternoon, another low develops over 
lower michigan, then lifts north into ontario and quebec as 29.7 
inch ridging builds over lake superior.



lsz264-150800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt tue oct 14 2025

.late this afternoon...northwest winds 5 to 15 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots diminishing to less than
10 knots after midnight, then veering north late. waves calm to
2 feet. 
.wednesday...west winds less than 10 knots increasing to 5 to
15 knots in the afternoon, then diminishing to less than 10 knots
late. waves calm to 2 feet. 
.wednesday night...west winds less than 10 knots backing
southwest after midnight, then becoming south 5 to 15 knots late.
waves calm to 2 feet. 
.thursday...south winds 10 to 20 knots becoming southeast 15 to
25 knots by mid afternoon. a slight chance of showers through
early afternoon, then showers likely by mid afternoon. waves
building to 2 to 4 feet. 
.thursday night...south winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.friday...south winds 10 to 20 knots. showers likely through
early afternoon, then a chance of showers by mid afternoon. waves
2 to 4 feet. 
.friday night...south winds 15 to 25 knots veering southwest
after midnight. a chance of showers. waves 2 to 4 feet. 
.saturday...southwest winds 20 to 30 knots becoming west 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday...west winds 20 to 30 knots becoming northwest 15 to
25 knots. a chance of showers. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 142001
glfls 
expires:202510150800;;137965

open lake forecast for lake superior
national weather service marquette mi
401 pm edt tue oct 14 2025

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 30.4 inch high builds into lake superior today. this high shifts 
across the great lakes and northern ontario by wednesday at around 
30.3 inches. ridging weakens to 30.1 inches over lake superior 
through thursday as troughing develops over the plains and the 
parent high moves east. thursday night through friday, a deepening 
29.3 inch low develops over the northern plains and lifts near to 
lake winnipeg. this low is projected to bring 29.5 to 29.6 inch 
troughing over lake superior friday night and saturday as the low 
moves to hudson bay. by sunday afternoon, another low develops over 
lower michigan, then lifts north into ontario and quebec as 29.7 
inch ridging builds over lake superior.



lsz265-150800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt tue oct 14 2025

.late this afternoon...north winds 10 to 20 knots. waves 1 to
3 feet. 
.tonight...north winds 5 to 15 knots. a slight chance of showers
through midnight. waves subsiding to calm to 2 feet. 
.wednesday...north winds 5 to 15 knots backing northwest in the
afternoon, then veering north late. waves calm to 2 feet. 
.wednesday night...west winds less than 10 knots becoming south
5 to 15 knots after midnight. waves calm to 2 feet. 
.thursday...south winds 10 to 20 knots becoming southeast 15 to
25 knots by mid afternoon. a slight chance of showers through
early afternoon, then showers likely by mid afternoon. waves calm
to 2 feet. 
.thursday night...south winds 15 to 25 knots. showers. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.friday...south winds 15 to 25 knots. a chance of showers. waves
calm to 2 feet. 
.friday night...south winds 15 to 25 knots. showers likely
through midnight, then a chance of showers after midnight. waves
calm to 2 feet. 
.saturday...west winds 15 to 25 knots. a chance of showers. waves
calm to 2 feet. 
.sunday...west winds 20 to 30 knots veering northwest. a chance
of showers. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 142001
glfls 
expires:202510150800;;137966

open lake forecast for lake superior
national weather service marquette mi
401 pm edt tue oct 14 2025

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 30.4 inch high builds into lake superior today. this high shifts 
across the great lakes and northern ontario by wednesday at around 
30.3 inches. ridging weakens to 30.1 inches over lake superior 
through thursday as troughing develops over the plains and the 
parent high moves east. thursday night through friday, a deepening 
29.3 inch low develops over the northern plains and lifts near to 
lake winnipeg. this low is projected to bring 29.5 to 29.6 inch 
troughing over lake superior friday night and saturday as the low 
moves to hudson bay. by sunday afternoon, another low develops over 
lower michigan, then lifts north into ontario and quebec as 29.7 
inch ridging builds over lake superior.



lsz266-150800-
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-
401 pm edt tue oct 14 2025

.late this afternoon...northwest winds 10 to 20 knots. waves 2 to
4 feet. 
.tonight...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a slight chance of showers through
midnight. waves subsiding to calm to 2 feet. 
.wednesday...north winds 5 to 15 knots backing northwest in the
afternoon. waves calm to 2 feet. 
.wednesday night...northwest winds less than 10 knots increasing
to 5 to 15 knots after midnight, then backing south late. waves
calm to 2 feet. 
.thursday...south winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a chance of showers by mid afternoon.
waves building to 2 to 4 feet. 
.thursday night...south winds 15 to 25 knots increasing to 20 to
30 knots after midnight. showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday...south winds 20 to 30 knots. showers likely through
early afternoon, then a chance of showers by mid afternoon. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday night...south winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. showers. waves subsiding to 2 to 4 feet.
.saturday...west winds 10 to 20 knots increasing to 15 to
25 knots. a chance of showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.sunday...west winds 20 to 30 knots veering northwest. showers
likely, then a chance of showers. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 142001
glfls 
expires:202510150800;;137967

open lake forecast for lake superior
national weather service marquette mi
401 pm edt tue oct 14 2025

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 30.4 inch high builds into lake superior today. this high shifts 
across the great lakes and northern ontario by wednesday at around 
30.3 inches. ridging weakens to 30.1 inches over lake superior 
through thursday as troughing develops over the plains and the 
parent high moves east. thursday night through friday, a deepening 
29.3 inch low develops over the northern plains and lifts near to 
lake winnipeg. this low is projected to bring 29.5 to 29.6 inch 
troughing over lake superior friday night and saturday as the low 
moves to hudson bay. by sunday afternoon, another low develops over 
lower michigan, then lifts north into ontario and quebec as 29.7 
inch ridging builds over lake superior.



lsz267-150800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt tue oct 14 2025

.late this afternoon...northwest winds 10 to 20 knots. waves 3 to
5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.tonight...north winds 10 to 20 knots becoming northeast 5 to
15 knots late. waves subsiding to calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots backing northwest in
the afternoon. waves calm to 2 feet. 
.wednesday night...northwest winds 5 to 15 knots veering north
late. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots backing southeast by mid
afternoon. a chance of showers by mid afternoon. waves calm to
2 feet. 
.thursday night...south winds 10 to 20 knots increasing to 20 to
30 knots after midnight. showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday...south winds 15 to 25 knots increasing to 20 to 30 knots
by mid afternoon. showers through early afternoon, then a chance
of showers by mid afternoon. waves 3 to 5 feet occasionally to
7 feet. 
.friday night...south winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.saturday...south winds 10 to 20 knots veering west. showers
likely. waves subsiding to calm to 2 feet, then building to 1 to
3 feet. 
.sunday...west winds 15 to 25 knots becoming northwest 20 to
30 knots. showers likely, then a chance of showers. waves
building to 5 to 8 feet occasionally to 10 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet. 

$$