fzus63 kdtx 031958
glflh 
expires:202610040400;;479681

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 pm edt sat oct 3 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...high pressure, 30.30 inches, will quickly exit east of
the region tonight. low pressure of 29.62 inches then tracks east
across southern ontario tonight into sunday, intensifying to
around 29.44 inches as it tracks east across the james bay area
sunday night. this low will drive a cold front across the region
on sunday, resulting in south winds to start the day becoming
west and northwesterly throughout sunday afternoon and evening.
northwest winds increase to around 25 to 30 knots sunday night
into monday morning, with the strongest winds across the northern
third of lake huron where we an occasional gust to 35 knots 
cannot be ruled out.


lhz361>363-040400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
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-
358 pm edt sat oct 3 2026

.tonight...southeast winds 5 to 10 knots increasing to 10 to
15 knots by midnight...then becoming south 15 to 20 knots early
in the morning. a chance of rain after midnight. waves 1 to
3 feet. 
.sunday...southwest winds 15 to 20 knots veering to the west late
in the afternoon. gusts to 30 knots. a chance of rain in the
morning. waves 3 to 5 feet. 
.sunday night...northwest winds 25 to 30 knots with an occasional 
gusts to 35 knots. waves 6 to 9 feet. waves occasionally around 
12 feet.
.monday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots with gusts to around
30 knots in the late morning and afternoon. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.monday night...northwest winds 15 to 20 knots becoming light and
variable. waves 5 to 7 feet subsiding to 2 to 4 feet after
midnight. waves occasionally around 10 feet. 
.tuesday...light and variable winds becoming south 20 to 25 knots
with gusts to around 30 knots. waves 2 feet or less building to
3 to 5 feet late in the afternoon. 
.wednesday...southwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots until early evening...then
veering to the west by midnight. waves 3 to 5 feet. 
.thursday...west winds 10 to 15 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 031958
glflh 
expires:202610040400;;479682

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 pm edt sat oct 3 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...high pressure, 30.30 inches, will quickly exit east of
the region tonight. low pressure of 29.62 inches then tracks east
across southern ontario tonight into sunday, intensifying to
around 29.44 inches as it tracks east across the james bay area
sunday night. this low will drive a cold front across the region
on sunday, resulting in south winds to start the day becoming
west and northwesterly throughout sunday afternoon and evening.
northwest winds increase to around 25 to 30 knots sunday night
into monday morning, with the strongest winds across the northern
third of lake huron where we an occasional gust to 35 knots 
cannot be ruled out.


lhz462>464-040400-
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-
358 pm edt sat oct 3 2026

.tonight...light and variable winds becoming southeast 5 to
10 knots late in the evening...then increasing to 10 to 15 knots
after midnight. waves 2 feet or less. 
.sunday...south winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet. 
.sunday night...northwest winds 15 to 20 knots. waves 5 to
7 feet. waves occasionally around 10 feet. 
.monday...northwest winds 20 to 25 knots decreasing to 10 to
15 knots. waves 5 to 7 feet. waves occasionally around 10 feet. 
.monday night...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.tuesday...west winds 5 to 10 knots backing to the southwest late
in the morning...then becoming south 15 to 20 knots late in the
afternoon. waves 1 to 3 feet building to 2 to 4 feet late in the
evening. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 2 to 4 feet. 
.thursday...west winds 10 to 15 knots. waves 1 to 3 feet. 


$$

fzus63 kmkx 031935
glflm 
expires:202610040315;;479147

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
235 pm cdt sat oct 3 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...

30.3 inch high pressure over eastern great lakes has brought 
steadily increasing south to southeast winds over the lake as the
low pressure around 29.9 inches to the west impinges on the the 
high pressure. winds will then trend south- southwesterly this 
evening as 29.8 inch low pressure moves toward the hudson bay from
the canadian prairies. the low pressure will pull a cold front 
across the waters tonight into sunday, bringing a west- northwest 
wind shift. showers could accompany the passing front, 
particularly across the northern half of the waters. northwest 
winds will continue through the day monday, tapering monday night 
as 30.2 inch high pressure moves in from the northern great 
plains. 

a deeper area of 29.4 inch low pressure will build toward the 
hudson bay tuesday through thursday. south-southwest winds will 
increase in advance of the approaching low tuesday afternoon 
through wednesday, becoming gusty at times. a few gusts could 
approach gale-force, particularly over the northern half of the 
open waters. will be monitoring for possible headlines as this 
portion of the period draws closer. the low will pull a cold front
across the waters wednesday night into thursday, bringing a west-
northwest wind shift and scattered rain showers. best potential 
for rain is currently favored over the northern third of the open 
waters. generally westerly winds will continue through friday as 
30.1 inch high pressure moves near or just south of lake 
michigan.


lmz261-362-364-366-563-565-567-868-040315-
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-
235 pm cdt sat oct 3 2026

sheboygan wi to pentwater mi north...

.tonight...south winds 10 to 20 kt becoming southwest to 30 kt.
chance of showers. waves 4 to 6 ft occasionally to 8 ft building
to 5 to 8 ft occasionally to 10 ft. 
.sunday...west winds to 30 kt becoming northwest 15 to 25 kt.
slight chance of showers in the morning. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.sunday night...northwest winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.monday...northwest winds 15 to 25 kt. waves 3 to 5 ft subsiding
to 2 to 4 ft. 
.monday night...north winds 10 to 20 kt backing to south 10 to
15 kt. waves 1 to 3 ft. 
.tuesday...south winds 15 to 25 kt increasing to gales to 35 kt
in the afternoon. waves 4 to 7 ft occasionally to 9 ft building
to 7 to 10 ft occasionally to 13 ft. 
.tuesday night...southwest gales to 35 kt. waves 7 to 10 ft
occasionally to 13 ft subsiding to 6 to 9 ft occasionally to
12 ft. 
.wednesday...west winds 15 to 25 kt. waves 4 to 6 ft occasionally
to 8 ft subsiding to 2 to 4 ft. 
.thursday...west winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft.  

$$

fzus63 kmkx 031935
glflm 
expires:202610040315;;479148

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
235 pm cdt sat oct 3 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...

30.3 inch high pressure over eastern great lakes has brought 
steadily increasing south to southeast winds over the lake as the
low pressure around 29.9 inches to the west impinges on the the 
high pressure. winds will then trend south- southwesterly this 
evening as 29.8 inch low pressure moves toward the hudson bay from
the canadian prairies. the low pressure will pull a cold front 
across the waters tonight into sunday, bringing a west- northwest 
wind shift. showers could accompany the passing front, 
particularly across the northern half of the waters. northwest 
winds will continue through the day monday, tapering monday night 
as 30.2 inch high pressure moves in from the northern great 
plains. 

a deeper area of 29.4 inch low pressure will build toward the 
hudson bay tuesday through thursday. south-southwest winds will 
increase in advance of the approaching low tuesday afternoon 
through wednesday, becoming gusty at times. a few gusts could 
approach gale-force, particularly over the northern half of the 
open waters. will be monitoring for possible headlines as this 
portion of the period draws closer. the low will pull a cold front
across the waters wednesday night into thursday, bringing a west-
northwest wind shift and scattered rain showers. best potential 
for rain is currently favored over the northern third of the open 
waters. generally westerly winds will continue through friday as 
30.1 inch high pressure moves near or just south of lake 
michigan.


lmz080-669-671-673-675-777-779-870-872-874-876-878-040315-
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-
235 pm cdt sat oct 3 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 10 to 20 kt becoming southwest 15 to
25 kt. slight chance of showers overnight. waves 4 to 6 ft
occasionally to 8 ft. 
.sunday...southwest winds 10 to 20 kt veering to northwest. waves
4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.sunday night...northwest winds 10 to 20 kt becoming north. waves
3 to 5 ft. 
.monday...north winds 10 to 20 kt. waves 3 to 5 ft. 
.monday night...northeast winds 10 to 15 kt veering to southeast.
waves 1 to 3 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft building to 7 to 10 ft
occasionally to 13 ft. 
.tuesday night...south winds to 30 kt becoming southwest. waves
7 to 10 ft occasionally to 13 ft. 
.wednesday...west winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.thursday...northwest winds 10 to 20 kt becoming west. waves 2 to
4 ft.  

$$

fzus63 kmqt 032003
glfls 
expires:202610040800;;479929

open lake forecast for lake superior
national weather service marquette mi
402 pm edt sat oct 3 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...

high pressure of 30.3 inches centered over lake huron this afternoon 
shifts east to the mouth of the st. lawrence river by this evening. 
immediately behind, a 29.8 inch clipper approaching northern 
minnesota this afternoon skirts along lake superior's north shore 
tonight and tomorrow, sending elevated southerly winds across lake 
superior this evening, followed by elevated northwesterlies tomorrow 
behind the front. behind the clipper, 30.3 inch high pressure 
quickly returns to the northern plains on sunday and moves overhead 
on monday. after this high pressure ridging, another clipper low 
moves east over the canadian prairies before passing to the north of 
lake superior at 29.6 inches late tuesday and tuesday night. remnant 
troughing of 29.9 inches remains over lake superior through thursday 
prior to surface ridging moving in again on friday.




lsz162-040800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
402 pm edt sat oct 3 2026 /302 pm cdt sat oct 3 2026/

.late this afternoon...south winds 15 to 25 knots. showers
likely. waves calm to 2 feet building to 1 to 3 feet. 
.tonight...southwest winds 20 to 30 knots becoming west 15 to
25 knots after midnight, then becoming northwest 20 to 30 knots
late. showers likely through midnight. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.sunday...northwest winds 20 to 30 knots backing west in the
afternoon, then becoming northwest 15 to 25 knots late. waves
subsiding to 1 to 3 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots. waves subsiding to calm to 2 feet. 
.monday...northwest winds 5 to 15 knots backing south by mid
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots veering south
after midnight. waves building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 25 knots. waves subsiding to
1 to 3 feet. 
.tuesday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.thursday...west winds 10 to 20 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 032003
glfls 
expires:202610040800;;479930

open lake forecast for lake superior
national weather service marquette mi
402 pm edt sat oct 3 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...

high pressure of 30.3 inches centered over lake huron this afternoon 
shifts east to the mouth of the st. lawrence river by this evening. 
immediately behind, a 29.8 inch clipper approaching northern 
minnesota this afternoon skirts along lake superior's north shore 
tonight and tomorrow, sending elevated southerly winds across lake 
superior this evening, followed by elevated northwesterlies tomorrow 
behind the front. behind the clipper, 30.3 inch high pressure 
quickly returns to the northern plains on sunday and moves overhead 
on monday. after this high pressure ridging, another clipper low 
moves east over the canadian prairies before passing to the north of 
lake superior at 29.6 inches late tuesday and tuesday night. remnant 
troughing of 29.9 inches remains over lake superior through thursday 
prior to surface ridging moving in again on friday.




lsz263-040800-
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-
402 pm edt sat oct 3 2026

.late this afternoon...southeast winds 15 to 25 knots. showers
likely. waves calm to 2 feet building to 1 to 3 feet. 
.tonight...south winds 20 to 30 knots becoming west 15 to
25 knots after midnight, then becoming northwest 20 to 30 knots
late. showers through midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...northwest winds 20 to 30 knots becoming west 15 to
25 knots late. waves 3 to 6 feet occasionally to 8 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots late. waves subsiding to 2 to 4 feet. 
.monday...northwest winds 5 to 15 knots backing southwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.monday night...south winds 5 to 15 knots increasing to 15 to
25 knots after midnight. waves building to 2 to 4 feet. 
.tuesday...south winds 20 to 30 knots veering southwest by mid
afternoon. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 
.tuesday night...west winds 15 to 25 knots. waves 2 to 4 feet. 
.wednesday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 
.thursday...west winds 10 to 20 knots veering northwest. waves
subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 032003
glfls 
expires:202610040800;;479931

open lake forecast for lake superior
national weather service marquette mi
402 pm edt sat oct 3 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...

high pressure of 30.3 inches centered over lake huron this afternoon 
shifts east to the mouth of the st. lawrence river by this evening. 
immediately behind, a 29.8 inch clipper approaching northern 
minnesota this afternoon skirts along lake superior's north shore 
tonight and tomorrow, sending elevated southerly winds across lake 
superior this evening, followed by elevated northwesterlies tomorrow 
behind the front. behind the clipper, 30.3 inch high pressure 
quickly returns to the northern plains on sunday and moves overhead 
on monday. after this high pressure ridging, another clipper low 
moves east over the canadian prairies before passing to the north of 
lake superior at 29.6 inches late tuesday and tuesday night. remnant 
troughing of 29.9 inches remains over lake superior through thursday 
prior to surface ridging moving in again on friday.




lsz264-040800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
402 pm edt sat oct 3 2026

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

$$

fzus63 kmqt 032003
glfls 
expires:202610040800;;479932

open lake forecast for lake superior
national weather service marquette mi
402 pm edt sat oct 3 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...

high pressure of 30.3 inches centered over lake huron this afternoon 
shifts east to the mouth of the st. lawrence river by this evening. 
immediately behind, a 29.8 inch clipper approaching northern 
minnesota this afternoon skirts along lake superior's north shore 
tonight and tomorrow, sending elevated southerly winds across lake 
superior this evening, followed by elevated northwesterlies tomorrow 
behind the front. behind the clipper, 30.3 inch high pressure 
quickly returns to the northern plains on sunday and moves overhead 
on monday. after this high pressure ridging, another clipper low 
moves east over the canadian prairies before passing to the north of 
lake superior at 29.6 inches late tuesday and tuesday night. remnant 
troughing of 29.9 inches remains over lake superior through thursday 
prior to surface ridging moving in again on friday.




lsz265-040800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
402 pm edt sat oct 3 2026

...gale watch in effect from sunday morning through sunday
evening...

.late this afternoon...south winds 15 to 25 knots. a chance of
showers. waves calm to 2 feet. 
.tonight...south winds 20 to 30 knots increasing to gales to
35 knots after midnight, then veering west late. showers through
midnight, then a chance of showers after midnight. waves building
to 3 to 6 feet occasionally to 8 feet. 
.sunday...northwest gales to 35 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...northwest gales to 35 knots diminishing to 20 to
30 knots late. a slight chance of showers through midnight. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet. 
.monday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...south winds 5 to 15 knots increasing to 15 to
25 knots after midnight. waves building to 1 to 3 feet. 
.tuesday...south gales to 35 knots diminishing to 20 to 30 knots
by mid afternoon. waves building to 2 to 4 feet, then subsiding
to 1 to 3 feet. 
.tuesday night...west winds 20 to 30 knots increasing to gales to
35 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...west gales to 35 knots diminishing to 20 to
30 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 2 to 4 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

$$

fzus63 kmqt 032003
glfls 
expires:202610040800;;479933

open lake forecast for lake superior
national weather service marquette mi
402 pm edt sat oct 3 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...

high pressure of 30.3 inches centered over lake huron this afternoon 
shifts east to the mouth of the st. lawrence river by this evening. 
immediately behind, a 29.8 inch clipper approaching northern 
minnesota this afternoon skirts along lake superior's north shore 
tonight and tomorrow, sending elevated southerly winds across lake 
superior this evening, followed by elevated northwesterlies tomorrow 
behind the front. behind the clipper, 30.3 inch high pressure 
quickly returns to the northern plains on sunday and moves overhead 
on monday. after this high pressure ridging, another clipper low 
moves east over the canadian prairies before passing to the north of 
lake superior at 29.6 inches late tuesday and tuesday night. remnant 
troughing of 29.9 inches remains over lake superior through thursday 
prior to surface ridging moving in again on friday.




lsz266-040800-
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-
402 pm edt sat oct 3 2026

...gale watch in effect from sunday morning through sunday
evening...

.late this afternoon...south winds 15 to 25 knots. a chance of
showers. waves 1 to 3 feet building to 2 to 4 feet. 
.tonight...south winds 20 to 30 knots increasing to gales to
35 knots after midnight, then veering west late. showers through
midnight, then a chance of showers after midnight. waves building
to 4 to 8 feet occasionally to 10 feet. 
.sunday...northwest gales to 40 knots. a slight chance of
showers. waves building to 7 to 10 feet occasionally to 13 feet. 
.sunday night...northwest gales to 35 knots diminishing to 20 to
30 knots after midnight. a slight chance of showers. waves
building to 8 to 11 feet occasionally to 14 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.monday...northwest winds 15 to 25 knots. waves subsiding to 1 to
3 feet. 
.monday night...northwest winds 5 to 15 knots becoming south
15 to 25 knots after midnight. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.tuesday...south winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet. 
.tuesday night...southwest winds 20 to 30 knots veering west
after midnight. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.wednesday...west winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 032003
glfls 
expires:202610040800;;479934

open lake forecast for lake superior
national weather service marquette mi
402 pm edt sat oct 3 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...

high pressure of 30.3 inches centered over lake huron this afternoon 
shifts east to the mouth of the st. lawrence river by this evening. 
immediately behind, a 29.8 inch clipper approaching northern 
minnesota this afternoon skirts along lake superior's north shore 
tonight and tomorrow, sending elevated southerly winds across lake 
superior this evening, followed by elevated northwesterlies tomorrow 
behind the front. behind the clipper, 30.3 inch high pressure 
quickly returns to the northern plains on sunday and moves overhead 
on monday. after this high pressure ridging, another clipper low 
moves east over the canadian prairies before passing to the north of 
lake superior at 29.6 inches late tuesday and tuesday night. remnant 
troughing of 29.9 inches remains over lake superior through thursday 
prior to surface ridging moving in again on friday.




lsz267-040800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
402 pm edt sat oct 3 2026

...gale watch in effect from sunday morning through sunday
evening...

.late this afternoon...south winds 15 to 25 knots. a slight
chance of showers. waves calm to 2 feet building to 1 to 3 feet. 
.tonight...south winds 20 to 30 knots increasing to gales to
35 knots after midnight, then veering southwest late. showers.
waves building to 4 to 7 feet occasionally to 9 feet. 
.sunday...northwest gales to 40 knots. a chance of showers. waves
building to 7 to 10 feet occasionally to 13 feet. 
.sunday night...northwest gales to 35 knots becoming north 20 to
30 knots late. a chance of showers. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.monday...northwest winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.monday night...northwest winds 5 to 15 knots backing south after
midnight. waves subsiding to calm to 2 feet. 
.tuesday...south winds 20 to 30 knots. waves building to 3 to
6 feet occasionally to 8 feet. 
.tuesday night...southwest gales to 35 knots becoming west 20 to
30 knots after midnight. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.wednesday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.thursday...west winds 15 to 25 knots. a chance of showers. waves
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
1 to 3 feet. 

$$