fzus63 kdtx 120846
glflh 
expires:202601121700;;213958

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 am est mon jan 12 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...mild and breezy today after light morning snow tapers
off over northern lake huron. the next low pressure system, 29.20
inches, moves in tuesday morning with southerly winds and rain.
the low slowly pivots through the region tuesday night into
wednesday, eventually forcing a cold frontal passage. this leads
to a changeover to snow with the possibility for a period of
post-frontal gales late wednesday.


lhz361-362-121700-
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-
346 am est mon jan 12 2026

.today...west winds 15 to 20 knots. a chance of snow in the
morning. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tonight...southwest winds 10 to 15 knots. waves 3 to 5 feet
subsiding to 1 to 3 feet early in the morning. 
.tuesday...south winds 10 to 15 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late morning and
early afternoon...then decreasing to 15 to 20 knots early in the
afternoon. rain and snow in the morning...then rain and snow
likely in the afternoon. waves 3 to 5 feet building to 6 to
9 feet in the late morning and afternoon. waves occasionally
around 12 feet. 
.tuesday night...west winds 15 to 20 knots. a chance of rain and
snow in the evening...then a chance of rain after midnight. waves
5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...north winds 20 to 25 knots with gusts to around
30 knots increasing to 30 knots late in the afternoon...then
decreasing to 20 to 25 knots with gusts to around 30 knots late
in the evening. a chance of snow. waves 6 to 9 feet building to
10 to 14 feet late in the afternoon. waves occasionally around
18 feet. 
.thursday...north winds 15 to 20 knots decreasing to 10 to
15 knots until early evening...then backing to the west by
midnight. waves 6 to 9 feet subsiding to 2 to 4 feet . waves
occasionally around 12 feet. 
.friday...south winds 10 to 15 knots. waves 2 to 4 feet. 


$$

fzus63 kdtx 120846
glflh 
expires:202601121700;;213959

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 am est mon jan 12 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...mild and breezy today after light morning snow tapers
off over northern lake huron. the next low pressure system, 29.20
inches, moves in tuesday morning with southerly winds and rain.
the low slowly pivots through the region tuesday night into
wednesday, eventually forcing a cold frontal passage. this leads
to a changeover to snow with the possibility for a period of
post-frontal gales late wednesday.


lhz363-462>464-121700-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
346 am est mon jan 12 2026

.today...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
afternoon. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tonight...southwest winds 10 to 15 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet early in the morning. 
.tuesday...south winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late morning and
afternoon. a chance of rain and snow in the morning...then rain
and snow likely in the afternoon. waves 5 to 7 feet building to
6 to 9 feet early in the afternoon. waves occasionally around
12 feet. 
.tuesday night...southwest winds 15 to 20 knots. waves 5 to
7 feet. waves occasionally around 10 feet. 
.wednesday...west winds 15 to 20 knots becoming north 20 to
25 knots with gusts to around 30 knots late in the morning...then
increasing to 30 knots with gusts to 35 knot gales late in the
afternoon. snow and rain likely...then a chance of snow late in
the afternoon. waves 6 to 9 feet building to 12 to 16 feet late
in the afternoon. waves occasionally around 20 feet. 
.thursday...north winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
early afternoon...then decreasing to 10 to 15 knots early in the
evening backing to the west by midnight. waves 10 to 14 feet
subsiding to 5 to 7 feet . waves occasionally around 18 feet. 
.friday...southwest winds 15 to 20 knots backing to the south .
waves 3 to 5 feet. 


$$

fzus63 kmkx 120836
glflm 
expires:202601121615;;213652

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
236 am cst mon jan 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...

breezy southwest winds will continue this morning as the region
remains situated between high pressure of 30.5 inches over the
tennessee valley and low pressure of 29.5 inches over hudson bay.
winds will gradually ease today as both features move east.

breezy south to southwest winds are expected tuesday ahead of 
another low pressure system around 29.3 inches. this low pressure 
system will track east across lake superior tuesday afternoon, 
shifting winds to northwesterly tuesday night. there is increasing
potential for gales and moderate freezing spray late tuesday 
night and through the day on wednesday in association with this 
system.


lmz261-362-364-366-563-565-567-868-121615-
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-
236 am cst mon jan 12 2026

sheboygan wi to pentwater mi north...

.today...west winds 15 to 25 kt diminishing to 10 to 20 kt. waves
5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.tonight...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
chance of rain overnight. waves 2 to 4 ft building to 3 to 5 ft. 
.tuesday...southwest winds 15 to 25 kt becoming west. rain likely
with snow in the morning, then chance of rain in the afternoon.
waves 4 to 7 ft occasionally to 9 ft building to 6 to 9 ft
occasionally to 12 ft. 
.tuesday night...west winds 10 to 20 kt becoming northwest to
30 kt overnight. chance of snow in the evening, then chance of
snow and rain overnight. waves 4 to 7 ft occasionally to 9 ft
building to 7 to 10 ft occasionally to 13 ft. 
.wednesday...north gales to 35 kt increasing to gales to 40 kt.
freezing spray. chance of snow. waves 12 to 16 ft occasionally to
21 ft. 
.wednesday night...north gales to 35 kt diminishing to 30 kt.
freezing spray. waves 10 to 14 ft occasionally to 18 ft subsiding
to 8 to 11 ft occasionally to 14 ft. 
.thursday...north winds 10 to 20 kt becoming west 10 to 15 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.friday...south winds 10 to 20 kt. chance of snow. waves 4 to
6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 120836
glflm 
expires:202601121615;;213653

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
236 am cst mon jan 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...

breezy southwest winds will continue this morning as the region
remains situated between high pressure of 30.5 inches over the
tennessee valley and low pressure of 29.5 inches over hudson bay.
winds will gradually ease today as both features move east.

breezy south to southwest winds are expected tuesday ahead of 
another low pressure system around 29.3 inches. this low pressure 
system will track east across lake superior tuesday afternoon, 
shifting winds to northwesterly tuesday night. there is increasing
potential for gales and moderate freezing spray late tuesday 
night and through the day on wednesday in association with this 
system.


lmz080-669-671-673-675-777-779-870-872-874-876-878-121615-
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-
236 am cst mon jan 12 2026

sheboygan wi to pentwater mi south...

.today...west winds to 30 kt becoming southwest 10 to 20 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.tonight...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
chance of rain overnight. waves 4 to 6 ft occasionally to 8 ft. 
.tuesday...southwest winds to 30 kt becoming west 15 to 25 kt.
chance of rain. waves 7 to 10 ft occasionally to 13 ft. 
.tuesday night...west winds 10 to 20 kt becoming northwest to
30 kt overnight. chance of rain and snow overnight. waves 6 to
9 ft occasionally to 12 ft. 
.wednesday...north gales to 35 kt increasing to gales to 40 kt.
snow and rain in the morning, then snow in the afternoon. waves
12 to 16 ft occasionally to 21 ft. 
.wednesday night...north gales to 35 kt diminishing to 30 kt.
freezing spray. chance of snow. waves 12 to 16 ft occasionally to
21 ft. 
.thursday...north winds 15 to 25 kt becoming northwest 10 to
20 kt. waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to
7 ft occasionally to 9 ft. 
.friday...southwest winds 10 to 20 kt. snow likely. waves 4 to
7 ft occasionally to 9 ft.  

$$

fzus63 kmqt 120901
glfls 
expires:202601122100;;214653

open lake forecast for lake superior
national weather service marquette mi
401 am est mon jan 12 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a weak 29.8 inch trough drops over lake superior tonight, extending 
southward from  29.5 inch low pressure over hudson bay. a weak 29.9 
inch ridge then moves over the lake monday night ahead of a 29.4 
inch low over manitoba. this low deepens to 29.3 inches as it moves 
over lake superior tuesday afternoon before moving into southern 
quebec by wednesday morning. meanwhile, 30.6 inch high pressure 
builds over the dakotas during the middle of next week and shifts 
east to the great lakes late wednesday into thursday. this will be 
followed up by 29.7 inch troughing moving over the lake friday.



lsz162-122100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am est mon jan 12 2026 /301 am cst mon jan 12 2026/

...gale watch in effect from tuesday evening through wednesday
afternoon...

.early this morning...west winds 15 to 25 knots. waves 3 to
5 feet occasionally to 7 feet. 
.today...west winds 15 to 25 knots diminishing to 10 to 20 knots.
waves subsiding to 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots late. a chance of rain showers, possibly mixed with snow
after midnight. waves subsiding to calm to 2 feet, then building
to 2 to 4 feet. 
.tuesday...west winds 15 to 25 knots. a chance of snow showers in
the morning. a chance of rain showers. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.tuesday night...north gales to 40 knots. a chance of rain
showers in the evening. a chance of snow showers. heavy freezing
spray after midnight. waves building to 7 to 10 feet occasionally
to 13 feet. 
.wednesday...north gales to 35 knots diminishing to 15 to
25 knots in the afternoon. heavy freezing spray in the morning.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.wednesday night...north winds 15 to 25 knots becoming west 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 15 to 25 knots. a chance of snow
showers. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.friday...northwest winds 15 to 25 knots becoming north 20 to
30 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 120901
glfls 
expires:202601122100;;214654

open lake forecast for lake superior
national weather service marquette mi
401 am est mon jan 12 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a weak 29.8 inch trough drops over lake superior tonight, extending 
southward from  29.5 inch low pressure over hudson bay. a weak 29.9 
inch ridge then moves over the lake monday night ahead of a 29.4 
inch low over manitoba. this low deepens to 29.3 inches as it moves 
over lake superior tuesday afternoon before moving into southern 
quebec by wednesday morning. meanwhile, 30.6 inch high pressure 
builds over the dakotas during the middle of next week and shifts 
east to the great lakes late wednesday into thursday. this will be 
followed up by 29.7 inch troughing moving over the lake friday.



lsz263-122100-
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 am est mon jan 12 2026

...gale watch in effect from tuesday evening through wednesday
afternoon...

.early this morning...west winds 15 to 25 knots. waves 4 to
8 feet occasionally to 10 feet. 
.today...west winds 15 to 25 knots diminishing to 10 to 20 knots
by mid afternoon. waves subsiding to 2 to 4 feet. 
.tonight...southwest winds 5 to 15 knots increasing to 10 to
20 knots by midnight. a chance of rain showers, possibly mixed
with snow after midnight. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 25 knots veering west. a chance
of rain showers, possibly mixed with snow. waves building to 3 to
6 feet occasionally to 8 feet. 
.tuesday night...north gales to 45 knots. heavy freezing spray.
rain showers likely in the evening. a chance of snow showers.
waves building to 11 to 15 feet occasionally to 19 feet, then
subsiding to 10 to 14 feet occasionally to 18 feet. 
.wednesday...north gales to 45 knots diminishing to 20 to
30 knots in the afternoon. heavy freezing spray. waves subsiding
to 4 to 7 feet occasionally to 9 feet. 
.wednesday night...north winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. freezing spray in the evening.
waves subsiding to 1 to 3 feet. 
.thursday...southwest winds 20 to 30 knots. a chance of snow
showers. waves subsiding to calm to 2 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.friday...northwest winds 20 to 30 knots veering north. a chance
of snow showers. waves subsiding to 1 to 3 feet, then building to
3 to 5 feet occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 120901
glfls 
expires:202601122100;;214655

open lake forecast for lake superior
national weather service marquette mi
401 am est mon jan 12 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a weak 29.8 inch trough drops over lake superior tonight, extending 
southward from  29.5 inch low pressure over hudson bay. a weak 29.9 
inch ridge then moves over the lake monday night ahead of a 29.4 
inch low over manitoba. this low deepens to 29.3 inches as it moves 
over lake superior tuesday afternoon before moving into southern 
quebec by wednesday morning. meanwhile, 30.6 inch high pressure 
builds over the dakotas during the middle of next week and shifts 
east to the great lakes late wednesday into thursday. this will be 
followed up by 29.7 inch troughing moving over the lake friday.



lsz264-122100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am est mon jan 12 2026

...gale watch in effect from tuesday evening through wednesday
afternoon...

.early this morning...west winds 15 to 25 knots. waves 5 to
9 feet occasionally to 11 feet. 
.today...west winds 15 to 25 knots. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.tonight...west winds 5 to 15 knots backing southwest by
midnight, then increasing to 10 to 20 knots late. a chance of
rain showers, possibly mixed with snow after midnight. waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet. 
.tuesday...southwest winds 10 to 20 knots becoming west 15 to
25 knots by late morning, then veering northwest by mid
afternoon. rain showers likely in the morning. a chance of snow
showers. a chance of rain showers in the afternoon. waves
building to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...north gales to 45 knots. heavy freezing spray. a
chance of snow showers, possibly mixed with rain in the evening.
snow showers likely after midnight. waves building to 11 to
15 feet occasionally to 19 feet. 
.wednesday...north gales to 45 knots. heavy freezing spray. waves
subsiding to 6 to 9 feet occasionally to 11 feet. 
.wednesday night...north winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. freezing spray in the evening.
waves subsiding to 1 to 3 feet. 
.thursday...southwest winds 15 to 25 knots. a chance of snow
showers. waves subsiding to calm to 2 feet, then building to 2 to
4 feet. 
.friday...northwest winds 15 to 25 knots becoming north 20 to
30 knots. a chance of snow showers. heavy freezing spray. waves
building to 3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 120901
glfls 
expires:202601122100;;214656

open lake forecast for lake superior
national weather service marquette mi
401 am est mon jan 12 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a weak 29.8 inch trough drops over lake superior tonight, extending 
southward from  29.5 inch low pressure over hudson bay. a weak 29.9 
inch ridge then moves over the lake monday night ahead of a 29.4 
inch low over manitoba. this low deepens to 29.3 inches as it moves 
over lake superior tuesday afternoon before moving into southern 
quebec by wednesday morning. meanwhile, 30.6 inch high pressure 
builds over the dakotas during the middle of next week and shifts 
east to the great lakes late wednesday into thursday. this will be 
followed up by 29.7 inch troughing moving over the lake friday.



lsz265-122100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am est mon jan 12 2026

...gale watch in effect from tuesday evening through wednesday
evening...

.early this morning...west winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.today...west winds 20 to 30 knots diminishing to 15 to 25 knots
by mid afternoon. waves subsiding to 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots backing south by
midnight. a chance of rain showers after midnight. waves
subsiding to calm to 2 feet. 
.tuesday...southwest winds 15 to 25 knots becoming west 20 to
30 knots. snow showers likely in the morning. rain showers
likely. a slight chance of snow showers in the afternoon. waves
building to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...north gales to 40 knots increasing to storm
force winds to 50 knots after midnight. rain showers in the
evening. snow showers. heavy freezing spray after midnight. waves
building to 12 to 17 feet occasionally to 21 feet. 
.wednesday...north gales to 45 knots. heavy freezing spray. a
chance of snow showers. waves subsiding to 9 to 12 feet
occasionally to 15 feet. 
.wednesday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.thursday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.friday...south winds 15 to 25 knots becoming northwest 20 to
30 knots. a chance of snow showers. waves building to 2 to
4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 120901
glfls 
expires:202601122100;;214657

open lake forecast for lake superior
national weather service marquette mi
401 am est mon jan 12 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a weak 29.8 inch trough drops over lake superior tonight, extending 
southward from  29.5 inch low pressure over hudson bay. a weak 29.9 
inch ridge then moves over the lake monday night ahead of a 29.4 
inch low over manitoba. this low deepens to 29.3 inches as it moves 
over lake superior tuesday afternoon before moving into southern 
quebec by wednesday morning. meanwhile, 30.6 inch high pressure 
builds over the dakotas during the middle of next week and shifts 
east to the great lakes late wednesday into thursday. this will be 
followed up by 29.7 inch troughing moving over the lake friday.



lsz266-122100-
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 am est mon jan 12 2026

...gale watch in effect from tuesday evening through wednesday
evening...

.early this morning...west winds 20 to 30 knots. waves 6 to
9 feet occasionally to 11 feet. 
.today...west winds 15 to 25 knots. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.tonight...west winds 10 to 20 knots backing south by midnight,
then increasing to 15 to 25 knots late. a slight chance of rain
and snow showers after midnight. waves subsiding to 2 to 4 feet. 
.tuesday...southwest winds 15 to 25 knots veering west by late
morning, then increasing to 20 to 30 knots by mid afternoon. rain
and snow showers in the morning, then a chance of rain and snow
showers in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...north gales to 45 knots. rain showers in the
evening. snow showers. heavy freezing spray after midnight. waves
building to 12 to 17 feet occasionally to 21 feet. 
.wednesday...north gales to 45 knots. heavy freezing spray. a
chance of snow showers. waves subsiding to 10 to 14 feet
occasionally to 18 feet. 
.wednesday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.thursday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.friday...south winds 15 to 25 knots becoming northwest 20 to
30 knots. a chance of snow showers. freezing spray. waves
subsiding to 2 to 4 feet, then building to 3 to 6 feet
occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 120901
glfls 
expires:202601122100;;214658

open lake forecast for lake superior
national weather service marquette mi
401 am est mon jan 12 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a weak 29.8 inch trough drops over lake superior tonight, extending 
southward from  29.5 inch low pressure over hudson bay. a weak 29.9 
inch ridge then moves over the lake monday night ahead of a 29.4 
inch low over manitoba. this low deepens to 29.3 inches as it moves 
over lake superior tuesday afternoon before moving into southern 
quebec by wednesday morning. meanwhile, 30.6 inch high pressure 
builds over the dakotas during the middle of next week and shifts 
east to the great lakes late wednesday into thursday. this will be 
followed up by 29.7 inch troughing moving over the lake friday.



lsz267-122100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am est mon jan 12 2026

...gale watch in effect from tuesday evening through wednesday
evening...

.early this morning...west winds 20 to 30 knots. a slight chance
of snow showers. waves 6 to 9 feet occasionally to 11 feet. 
.today...west winds 20 to 30 knots diminishing to 15 to 25 knots
by mid afternoon. a slight chance of rain and snow showers. waves
subsiding to 4 to 7 feet occasionally to 9 feet. 
.tonight...west winds 15 to 25 knots becoming southwest 10 to
20 knots by midnight, then becoming south 15 to 25 knots late. a
slight chance of rain and snow showers after midnight. waves
subsiding to 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots veering southwest by late
morning, then becoming west 20 to 30 knots by mid afternoon. rain
and snow showers. waves building to 3 to 6 feet occasionally to
8 feet. 
.tuesday night...northwest winds 20 to 30 knots becoming north
gales to 45 knots after midnight. rain showers in the evening.
snow showers. heavy freezing spray after midnight. waves building
to 9 to 12 feet occasionally to 15 feet. 
.wednesday...north gales to 45 knots. heavy freezing spray. a
chance of snow showers. waves subsiding to 6 to 9 feet
occasionally to 11 feet. 
.wednesday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight. heavy freezing spray. waves subsiding to
2 to 4 feet. 
.thursday...southwest winds 10 to 20 knots becoming south 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 
.friday...south winds 15 to 25 knots veering northwest. a chance
of snow showers. waves building to 3 to 6 feet occasionally to
8 feet. 

note, wave height forecasts are for ice free areas.

$$