fzus63 kdtx 012032
glflh 
expires:202512020445;;840543

open lake forecast for lake huron
national weather service detroit/pontiac mi
332 pm est mon dec 1 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...high pressure, 30.50 inches,will continue to push off
towards the east this afternoon. a low pressure system moving
across the tennessee valley will bring snow showers to the
eastern great lakes through the overnight hours. a strong arctic
cold front arrives midweek bringing a period of stronger
preceding southwest and trailing northwest winds.


lhz361-020445-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
332 pm est mon dec 1 2025

.tonight...southwest winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. a chance of snow in the evening...then
snow after midnight. waves 2 to 4 feet. 
.tuesday...west winds 5 to 10 knots. a chance of snow in the
morning. waves 1 to 3 feet. 
.tuesday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. a chance of
snow after midnight. waves 3 to 5 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 20 to
25 knots with gusts to around 30 knots early in the afternoon.
snow. waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday night...northwest winds to 30 knots decreasing to
20 to 25 knots with gusts to around 30 knots in the late evening
and overnight. snow in the evening...then snow likely after
midnight. waves 6 to 9 feet. waves occasionally around 12 feet. 
.thursday...west winds 15 to 20 knots becoming southwest 20 to
25 knots with gusts to around 30 knots late in the evening. a
chance of snow. waves 4 to 6 feet. waves occasionally around
8 feet. 
.friday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots. a chance of snow early in
the morning...then snow likely until early morning. waves 3 to
5 feet. 
.saturday...west winds 10 to 15 knots veering to the northwest
until early morning. a chance of snow. waves 2 to 4 feet
subsiding to 1 to 3 feet. 


$$

fzus63 kdtx 012032
glflh 
expires:202512020445;;840544

open lake forecast for lake huron
national weather service detroit/pontiac mi
332 pm est mon dec 1 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...high pressure, 30.50 inches,will continue to push off
towards the east this afternoon. a low pressure system moving
across the tennessee valley will bring snow showers to the
eastern great lakes through the overnight hours. a strong arctic
cold front arrives midweek bringing a period of stronger
preceding southwest and trailing northwest winds.


lhz362-363-020445-
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-
332 pm est mon dec 1 2025

.tonight...southwest winds 15 to 20 knots decreasing to 10 to
15 knots early in the morning. snow likely. waves 3 to 5 feet. 
.tuesday...southwest winds 10 to 15 knots becoming west 5 to
10 knots in the afternoon. a chance of snow in the morning. waves
2 to 4 feet subsiding to 1 to 3 feet in the afternoon. 
.tuesday night...southwest winds 10 to 15 knots increasing to
20 to 25 knots. waves 2 to 4 feet building to 8 to 12 feet. waves
occasionally around 15 feet. 
.wednesday...southwest winds 20 to 25 knots increasing to
30 knots in the late morning and afternoon. a chance of snow in
the morning...then snow in the afternoon. waves 10 to 14 feet.
waves occasionally around 18 feet. 
.wednesday night...west winds to 30 knots becoming northwest
20 to 25 knots in the late evening and early morning...then
increasing to 30 knots after midnight. snow likely in the
evening...then a chance of snow after midnight. waves 8 to
12 feet. waves occasionally around 15 feet. 
.thursday...northwest winds 20 to 25 knots becoming west 15 to
20 knots late in the afternoon...then becoming southwest 20 to
25 knots late in the evening. a chance of snow. waves 6 to
9 feet. waves occasionally around 12 feet. 
.friday...southwest winds to 30 knots decreasing to 20 to
25 knots in the late evening and early morning. a chance of snow.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.saturday...southwest winds 15 to 20 knots becoming west 10 to
15 knots until early morning. a chance of snow early in the
morning. a chance of snow until early morning. waves 4 to 6 feet.
waves occasionally around 8 feet. 


$$

fzus63 kdtx 012032
glflh 
expires:202512020445;;840545

open lake forecast for lake huron
national weather service detroit/pontiac mi
332 pm est mon dec 1 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...high pressure, 30.50 inches,will continue to push off
towards the east this afternoon. a low pressure system moving
across the tennessee valley will bring snow showers to the
eastern great lakes through the overnight hours. a strong arctic
cold front arrives midweek bringing a period of stronger
preceding southwest and trailing northwest winds.


lhz462>464-020445-
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-
332 pm est mon dec 1 2025

.tonight...southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and early morning...then decreasing
to 5 to 10 knots early in the morning. snow likely. waves 1 to
3 feet. 
.tuesday...west winds 5 to 10 knots. a chance of snow in the
morning. waves 2 feet or less. 
.tuesday night...west winds 10 to 15 knots becoming southwest
15 to 20 knots in the late evening and overnight. waves 2 to
4 feet building to 4 to 6 feet in the late evening and overnight.
waves occasionally around 8 feet. 
.wednesday...southwest winds 20 to 25 knots with gusts to around
30 knots. a chance of snow in the morning...then snow likely in
the afternoon. waves 6 to 9 feet. waves occasionally around
12 feet. 
.wednesday night...west winds 20 to 25 knots with gusts to around
30 knots veering to the northwest with gusts to around 30 knots
after midnight. snow likely in the evening...then a chance of
snow after midnight. waves 6 to 9 feet. waves occasionally around
12 feet. 
.thursday...northwest winds 20 to 25 knots with gusts to around
30 knots becoming west 15 to 20 knots late in the afternoon...
then backing to the southwest late in the evening. a chance of
snow. waves 5 to 7 feet. waves occasionally around 10 feet. 
.friday...southwest winds 20 to 25 knots. gusts to 30 knots until
early evening. a chance of snow until early morning. waves 4 to
6 feet. waves occasionally around 8 feet. 
.saturday...southwest winds 15 to 20 knots becoming west 10 to
15 knots until early morning. a chance of snow early in the
morning. a chance of snow until early morning. waves 2 to 4 feet.


$$

fzus63 kmkx 012147
glflm 
expires:202512020430;;844924

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
347 pm cst mon dec 1 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...

steady southerly winds will become west to southwest late tonight
and tuesday as an area of high pressure of 30.2 inches moves 
through the ohio valley.

a strong cold front along a low pressure trough averaging 29.8 
inches will cross lake michigan wednesday. gusty southwest winds
are expected ahead of this front early wednesday morning, with
gusty northwest winds behind it wednesday afternoon and night. 
winds are expected to remain just below gale force, although a few
gale force gusts look possible. very cold air with this system 
will result in a risk for freezing spray wednesday night and 
thursday.

light winds are expected thursday with the influence of high 
pressure of 30.4 inches over illinois and indiana. another period
of elevated southwest winds will occur thursday night into friday
as another low pressure trough around 29.8 inches crosses the 
upper great lakes. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-020430-
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-
347 pm cst mon dec 1 2025

sheboygan wi to pentwater mi south...

.tonight...south winds 10 to 20 kt veering to northwest. snow
showers this evening, then chance of snow overnight. waves 3 to
5 ft. 
.tuesday...northwest winds 10 to 15 kt becoming west 10 to 20 kt.
waves 2 to 4 ft. 
.tuesday night...southwest winds 15 to 25 kt increasing to winds
to 30 kt. chance of snow overnight. waves 4 to 6 ft occasionally 
to 8 ft building to 8 to 12 ft occasionally to 16 ft. 
.wednesday...southwest winds to 30 kt becoming west. snow likely.
waves 10 to 14 ft occasionally to 18 ft. 
.wednesday night...northwest winds to 30 kt. chance of snow in
the evening. freezing spray overnight. waves 8 to 12 ft
occasionally to 16 ft. 
.thursday...northwest winds to 30 kt becoming west 10 to 20 kt in
the afternoon. waves 8 to 11 ft occasionally to 14 ft subsiding
to 5 to 8 ft occasionally to 10 ft. 
.thursday night...southwest winds 15 to 25 kt increasing to
30 kt. waves 4 to 7 ft occasionally to 9 ft building to 8 to
11 ft occasionally to 14 ft. 
.friday...southwest winds to 30 kt. waves 10 to 14 ft 
occasionally to 18 ft. 
.saturday...west winds 10 to 20 kt. waves 4 to 7 ft occasionally
to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 012147
glflm 
expires:202512020430;;844923

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
347 pm cst mon dec 1 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...

steady southerly winds will become west to southwest late tonight
and tuesday as an area of high pressure of 30.2 inches moves 
through the ohio valley.

a strong cold front along a low pressure trough averaging 29.8 
inches will cross lake michigan wednesday. gusty southwest winds
are expected ahead of this front early wednesday morning, with
gusty northwest winds behind it wednesday afternoon and night. 
winds are expected to remain just below gale force, although a few
gale force gusts look possible. very cold air with this system 
will result in a risk for freezing spray wednesday night and 
thursday.

light winds are expected thursday with the influence of high 
pressure of 30.4 inches over illinois and indiana. another period
of elevated southwest winds will occur thursday night into friday
as another low pressure trough around 29.8 inches crosses the 
upper great lakes. 


lmz261-362-364-366-563-565-567-868-020430-
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-
347 pm cst mon dec 1 2025

sheboygan wi to pentwater mi north...

.tonight...southwest winds 10 to 20 kt becoming northwest 10 to
15 kt. snow showers this evening, then chance of snow overnight.
waves 3 to 5 ft. 
.tuesday...west winds 10 to 15 kt becoming southwest 10 to 20 kt
early in the afternoon, then increasing to 15 to 25 kt late.
waves 2 to 4 ft. 
.tuesday night...southwest winds to 30 kt. a few gale force gusts
up to 35 kt. chance of snow overnight. waves 4 to 6 ft 
occasionally to 8 ft building to 8 to 11 ft occasionally to 14 ft.
.wednesday...west winds to 30 kt becoming northwest. snow in the
morning, then chance of snow in the afternoon. waves 8 to 11 ft
occasionally to 14 ft subsiding to 6 to 9 ft occasionally to
12 ft. 
.wednesday night...northwest winds to 30 kt with a few gale force
gusts up to 35 kt. chance of snow. freezing spray overnight. 
waves 7 to 10 ft occasionally to 13 ft.
.thursday...northwest winds to 30 kt becoming west 15 to 25 kt.
chance of snow in the morning. waves 6 to 9 ft occasionally to
12 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.thursday night...southwest winds to 30 kt. chance of snow. waves
6 to 9 ft occasionally to 12 ft building to 8 to 11 ft 
occasionally to 14 ft. 
.friday...southwest winds to 30 kt. chance of snow. waves 10 to 
14 ft occasionally to 18 ft. 
.saturday...northwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft.  

$$

fzus63 kmqt 012101
glfls 
expires:202512020900;;841663

open lake forecast for lake superior
national weather service marquette mi
401 pm est mon dec 1 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 over the lower great lakes moves to new england 
this evening while a weak 30.0 inch trough descends over lake 
superior from northern ontario. as the trough deepens to 29.9 inches 
on tuesday, a 29.7 inch low dives through southern saskatchewan into 
the northern plains. the low weakens slightly to 29.8 inches tuesday 
evening as it approaches lake superior. by wednesday afternoon, the 
low deepens to 29.6 inches south of james bay while a 30.5 inch high 
builds over the high plains. the high shifts over the central plains 
thursday morning before moving between the great lakes and ohio 
river valley thursday evening. the high arrives over the mid-
atlantic states on friday as troughing down to 29.7 inches develops 
over lake superior.



lsz264-020900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm est mon dec 1 2025

.late this afternoon...west winds 15 to 25 knots. a chance of
snow showers. waves 5 to 8 feet occasionally to 10 feet. 
.tonight...west winds 15 to 25 knots diminishing to 10 to
20 knots by midnight, then veering northwest late. a chance of
snow showers in the evening. snow showers likely after midnight.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 10 to 20 knots becoming southwest 15 to
25 knots by late morning, then increasing to 20 to 30 knots by
mid afternoon. a chance of snow showers. waves subsiding to 2 to
4 feet, then building to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...southwest winds 20 to 30 knots veering northwest
late. snow showers. waves building to 6 to 9 feet occasionally to
11 feet. 
.wednesday...northwest gales to 35 knots. freezing spray. a
chance of snow showers. waves building to 8 to 11 feet
occasionally to 14 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.wednesday night...northwest gales to 35 knots. freezing spray. a
chance of snow showers. waves building to 7 to 10 feet
occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.thursday...northwest winds 20 to 30 knots backing southwest in
the afternoon. freezing spray in the morning. waves subsiding to
3 to 6 feet occasionally to 8 feet. 
.thursday night...southwest gales to 35 knots veering west after
midnight. freezing spray. snow showers likely. waves building to
5 to 9 feet occasionally to 11 feet. 
.friday...west winds 20 to 30 knots becoming northwest 15 to
25 knots. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.saturday...northwest winds 15 to 25 knots becoming north 10 to
20 knots. waves 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 012101
glfls 
expires:202512020900;;841664

open lake forecast for lake superior
national weather service marquette mi
401 pm est mon dec 1 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 over the lower great lakes moves to new england 
this evening while a weak 30.0 inch trough descends over lake 
superior from northern ontario. as the trough deepens to 29.9 inches 
on tuesday, a 29.7 inch low dives through southern saskatchewan into 
the northern plains. the low weakens slightly to 29.8 inches tuesday 
evening as it approaches lake superior. by wednesday afternoon, the 
low deepens to 29.6 inches south of james bay while a 30.5 inch high 
builds over the high plains. the high shifts over the central plains 
thursday morning before moving between the great lakes and ohio 
river valley thursday evening. the high arrives over the mid-
atlantic states on friday as troughing down to 29.7 inches develops 
over lake superior.



lsz265-020900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm est mon dec 1 2025

.late this afternoon...west winds 20 to 30 knots. waves 3 to
5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.tonight...west winds 15 to 25 knots. a slight chance of snow
showers. waves 2 to 4 feet. 
.tuesday...west winds 15 to 25 knots backing southwest. waves
subsiding to 1 to 3 feet. 
.tuesday night...southwest winds 20 to 30 knots veering west
late. a chance of snow showers in the evening, then snow showers
after midnight. waves building to 3 to 6 feet occasionally to
8 feet. 
.wednesday...northwest gales to 40 knots. snow showers. freezing
spray in the afternoon. waves building to 6 to 10 feet
occasionally to 13 feet. 
.wednesday night...northwest gales to 40 knots. freezing spray.
snow showers likely in the evening. a chance of snow showers
after midnight. waves subsiding to 5 to 8 feet occasionally to
10 feet. 
.thursday...northwest winds 20 to 30 knots backing southwest in
the afternoon. freezing spray in the morning. a chance of snow
showers. waves subsiding to 2 to 4 feet. 
.thursday night...southwest gales to 35 knots diminishing to
20 to 30 knots after midnight. a chance of snow showers in the
evening, then snow showers likely after midnight. waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.friday...west winds 20 to 30 knots. snow showers likely. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.saturday...northwest winds 15 to 25 knots. a chance of snow
showers. waves 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 012101
glfls 
expires:202512020900;;841665

open lake forecast for lake superior
national weather service marquette mi
401 pm est mon dec 1 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 over the lower great lakes moves to new england 
this evening while a weak 30.0 inch trough descends over lake 
superior from northern ontario. as the trough deepens to 29.9 inches 
on tuesday, a 29.7 inch low dives through southern saskatchewan into 
the northern plains. the low weakens slightly to 29.8 inches tuesday 
evening as it approaches lake superior. by wednesday afternoon, the 
low deepens to 29.6 inches south of james bay while a 30.5 inch high 
builds over the high plains. the high shifts over the central plains 
thursday morning before moving between the great lakes and ohio 
river valley thursday evening. the high arrives over the mid-
atlantic states on friday as troughing down to 29.7 inches develops 
over lake superior.



lsz266-020900-
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 est mon dec 1 2025

.late this afternoon...west winds 15 to 25 knots. a slight chance
of snow showers. waves 5 to 8 feet occasionally to 10 feet. 
.tonight...west winds 15 to 25 knots. a chance of snow showers.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 10 to 20 knots becoming southwest 15 to
25 knots. a chance of snow showers in the morning. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.tuesday night...southwest winds 20 to 30 knots veering west
late. a chance of snow showers in the evening, then snow showers
after midnight. waves building to 6 to 9 feet occasionally to
11 feet. 
.wednesday...northwest gales to 40 knots. snow showers. freezing
spray in the afternoon. waves building to 10 to 14 feet
occasionally to 18 feet, then subsiding to 9 to 12 feet
occasionally to 15 feet. 
.wednesday night...northwest gales to 40 knots. freezing spray.
snow showers. waves building to 10 to 14 feet occasionally to
18 feet, then subsiding to 8 to 11 feet occasionally to 14 feet. 
.thursday...northwest gales to 35 knots becoming west 20 to
30 knots in the afternoon. freezing spray in the morning. snow
showers likely in the morning, then a chance of snow showers in
the afternoon. waves subsiding to 4 to 7 feet occasionally to
9 feet. 
.thursday night...southwest winds 20 to 30 knots. freezing spray.
a chance of snow showers in the evening. snow showers likely
after midnight. waves building to 5 to 9 feet occasionally to
11 feet. 
.friday...southwest winds 15 to 25 knots veering west. snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.saturday...northwest winds 15 to 25 knots veering north. a
chance of snow showers, then snow showers likely. waves subsiding
to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 012101
glfls 
expires:202512020900;;841666

open lake forecast for lake superior
national weather service marquette mi
401 pm est mon dec 1 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 over the lower great lakes moves to new england 
this evening while a weak 30.0 inch trough descends over lake 
superior from northern ontario. as the trough deepens to 29.9 inches 
on tuesday, a 29.7 inch low dives through southern saskatchewan into 
the northern plains. the low weakens slightly to 29.8 inches tuesday 
evening as it approaches lake superior. by wednesday afternoon, the 
low deepens to 29.6 inches south of james bay while a 30.5 inch high 
builds over the high plains. the high shifts over the central plains 
thursday morning before moving between the great lakes and ohio 
river valley thursday evening. the high arrives over the mid-
atlantic states on friday as troughing down to 29.7 inches develops 
over lake superior.



lsz267-020900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm est mon dec 1 2025

.late this afternoon...southwest winds 20 to 30 knots. a chance
of snow showers. waves 4 to 7 feet occasionally to 9 feet
subsiding to 3 to 6 feet occasionally to 8 feet. 
.tonight...southwest winds 20 to 30 knots becoming west 15 to
25 knots by midnight. a chance of snow showers. waves subsiding
to 3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 10 to 20 knots becoming southwest 15 to
25 knots. a slight chance of snow showers. waves subsiding to
2 to 4 feet. 
.tuesday night...southwest winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible late. a
chance of snow showers in the evening, then snow showers after
midnight. waves building to 5 to 8 feet occasionally to 10 feet. 
.wednesday...west gales to 35 knots becoming northwest gales to
40 knots in the afternoon. snow showers. freezing spray in the
afternoon. waves building to 8 to 12 feet occasionally to
15 feet. 
.wednesday night...northwest gales to 35 knots. freezing spray.
snow showers. waves building to 8 to 12 feet occasionally to
15 feet. 
.thursday...northwest winds 20 to 30 knots backing west in the
afternoon. freezing spray in the morning. snow showers. waves
subsiding to 4 to 7 feet occasionally to 9 feet. 
.thursday night...southwest winds 20 to 30 knots increasing to
gales to 35 knots after midnight. freezing spray. snow showers.
waves building to 5 to 8 feet occasionally to 10 feet. 
.friday...southwest winds 20 to 30 knots becoming west 15 to
25 knots. snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.saturday...northwest winds 15 to 25 knots veering north. snow
showers likely. waves subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 012101
glfls 
expires:202512020900;;841661

open lake forecast for lake superior
national weather service marquette mi
401 pm est mon dec 1 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 over the lower great lakes moves to new england 
this evening while a weak 30.0 inch trough descends over lake 
superior from northern ontario. as the trough deepens to 29.9 inches 
on tuesday, a 29.7 inch low dives through southern saskatchewan into 
the northern plains. the low weakens slightly to 29.8 inches tuesday 
evening as it approaches lake superior. by wednesday afternoon, the 
low deepens to 29.6 inches south of james bay while a 30.5 inch high 
builds over the high plains. the high shifts over the central plains 
thursday morning before moving between the great lakes and ohio 
river valley thursday evening. the high arrives over the mid-
atlantic states on friday as troughing down to 29.7 inches develops 
over lake superior.



lsz162-020900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm est mon dec 1 2025 /301 pm cst mon dec 1 2025/

.late this afternoon...west winds 15 to 25 knots. a chance of
snow showers. waves 3 to 6 feet occasionally to 8 feet. 
.tonight...west winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. a chance of snow showers. waves subsiding
to 1 to 3 feet. 
.tuesday...west winds 10 to 20 knots becoming southwest 15 to
25 knots by late morning, then increasing to 20 to 30 knots by
mid afternoon. a chance of snow showers. waves building to 3 to
6 feet occasionally to 8 feet. 
.tuesday night...southwest winds 20 to 30 knots becoming west
15 to 25 knots by midnight, then veering northwest late. snow
showers in the evening, then a chance of snow showers after
midnight. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.wednesday...northwest winds 20 to 30 knots increasing to gales
to 35 knots in the afternoon. a slight chance of snow showers in
the morning. waves building to 3 to 6 feet occasionally to
8 feet. 
.wednesday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 1 to 3 feet. 
.thursday...west winds 10 to 20 knots becoming southwest 20 to
30 knots in the afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.thursday night...southwest gales to 35 knots diminishing to
20 to 30 knots after midnight. snow showers likely in the
evening, then a chance of snow showers after midnight. waves
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
2 to 4 feet. 
.friday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. a chance of snow showers. waves subsiding to calm to
2 feet. 
.saturday...northwest winds 10 to 20 knots veering north. waves
calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 012101
glfls 
expires:202512020900;;841662

open lake forecast for lake superior
national weather service marquette mi
401 pm est mon dec 1 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 over the lower great lakes moves to new england 
this evening while a weak 30.0 inch trough descends over lake 
superior from northern ontario. as the trough deepens to 29.9 inches 
on tuesday, a 29.7 inch low dives through southern saskatchewan into 
the northern plains. the low weakens slightly to 29.8 inches tuesday 
evening as it approaches lake superior. by wednesday afternoon, the 
low deepens to 29.6 inches south of james bay while a 30.5 inch high 
builds over the high plains. the high shifts over the central plains 
thursday morning before moving between the great lakes and ohio 
river valley thursday evening. the high arrives over the mid-
atlantic states on friday as troughing down to 29.7 inches develops 
over lake superior.



lsz263-020900-
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 est mon dec 1 2025

.late this afternoon...west winds 15 to 25 knots. a chance of
snow showers. waves 5 to 8 feet occasionally to 10 feet. 
.tonight...west winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. a chance of snow showers. waves subsiding
to 3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 10 to 20 knots becoming southwest 15 to
25 knots by late morning, then increasing to 20 to 30 knots by
mid afternoon. a chance of snow showers. waves subsiding to 2 to
4 feet, then building to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...southwest winds 20 to 30 knots veering northwest
late. snow showers. waves building to 5 to 8 feet occasionally to
10 feet. 
.wednesday...northwest winds 20 to 30 knots increasing to gales
to 35 knots in the afternoon. freezing spray. a chance of snow
showers. waves building to 5 to 9 feet occasionally to 11 feet. 
.wednesday night...northwest gales to 35 knots. freezing spray.
waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...west winds 20 to 30 knots becoming southwest gales to
35 knots in the afternoon. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday night...southwest gales to 35 knots veering west after
midnight. freezing spray. snow showers likely in the evening. a
chance of snow showers after midnight. waves building to 4 to
8 feet occasionally to 10 feet. 
.friday...west winds 20 to 30 knots becoming northwest 10 to
20 knots. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.saturday...northwest winds 10 to 20 knots veering north. waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$