fzus63 kdtx 121501
glflh 
expires:202601122315;;227670

open lake forecast for lake huron
national weather service detroit/pontiac mi
1001 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...moderate wind and mild temperatures are in place
between larger scale weather systems today which continues
tonight as the next low pressure system, 29.20 inches, moves
toward the great lakes. this system moves across northern ontario
tuesday and brings a light rain and snow mix to lake huron and
lower michigan. the low 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.


lhz361-362-122315-
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-
1001 am est mon jan 12 2026

.rest of today...west winds 15 to 20 knots. scattered snow showers
north of presque isle. 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 4 to 6 feet building to 8 to
12 feet in the late morning and afternoon. waves occasionally
around 15 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
6 to 9 feet. waves occasionally around 12 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 3 to 5 feet. 


$$

fzus63 kdtx 121501
glflh 
expires:202601122315;;227671

open lake forecast for lake huron
national weather service detroit/pontiac mi
1001 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...moderate wind and mild temperatures are in place
between larger scale weather systems today which continues
tonight as the next low pressure system, 29.20 inches, moves
toward the great lakes. this system moves across northern ontario
tuesday and brings a light rain and snow mix to lake huron and
lower michigan. the low 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>464-122315-
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-
1001 am est mon jan 12 2026

.rest of today...southwest winds 15 to 20 knots. 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
8 to 12 feet early in the afternoon. waves occasionally around
15 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 5 to 7 feet building to 10 to 14 feet. waves
occasionally around 18 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 8 to 12 feet
subsiding to 4 to 6 feet by midnight. waves occasionally around
15 feet. 
.friday...southwest winds 15 to 20 knots backing to the south .
waves 3 to 5 feet. 


$$

fzus63 kmkx 121503
glflm 
expires:202601122215;;227841

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 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...

29.4 inch low pressure is centered over the eastern hudson bay 
this afternoon, resulting in generally west-southwest winds across
the open waters of lake michigan. high pressure of 29.9 inches 
will cross the waters this evening, bringing a decrease in winds 
through the first half of the overnight hours. low pressure of
29.3 inches will develop near the ontario-manitoba border late 
tonight, deepening to near 29.2 inches as it approaches the 
ontario-quebec border tuesday evening. development and 
progression of the low will result in increasing west-southwest 
winds across lake michigan early tuesday morning through tuesday 
afternoon. gusts between 25-30 knots are possible, though gales 
are not expected at this time.

an arctic cold front will quickly move south across lake michigan 
late tuesday night through early wednesday morning, bringing a gusty 
north wind shift over the waters. gale force gusts appear possible
during this time frame, with the need for headlines being assessed
in coming forecasts. areas of light to moderate freezing spray 
will accompany the passing front wednesday morning through 
wednesday evening. 


lmz261-362-364-366-563-565-567-868-122215-
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-
903 am cst mon jan 12 2026

sheboygan wi to pentwater mi north...

.rest of today...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. 
.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 121503
glflm 
expires:202601122215;;227842

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 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...

29.4 inch low pressure is centered over the eastern hudson bay 
this afternoon, resulting in generally west-southwest winds across
the open waters of lake michigan. high pressure of 29.9 inches 
will cross the waters this evening, bringing a decrease in winds 
through the first half of the overnight hours. low pressure of
29.3 inches will develop near the ontario-manitoba border late 
tonight, deepening to near 29.2 inches as it approaches the 
ontario-quebec border tuesday evening. development and 
progression of the low will result in increasing west-southwest 
winds across lake michigan early tuesday morning through tuesday 
afternoon. gusts between 25-30 knots are possible, though gales 
are not expected at this time.

an arctic cold front will quickly move south across lake michigan 
late tuesday night through early wednesday morning, bringing a gusty 
north wind shift over the waters. gale force gusts appear possible
during this time frame, with the need for headlines being assessed
in coming forecasts. areas of light to moderate freezing spray 
will accompany the passing front wednesday morning through 
wednesday evening. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-122215-
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-
903 am cst mon jan 12 2026

sheboygan wi to pentwater mi south...

.rest of today...west winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 5 to 8 ft occasionally to 10 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 121501
glfls 
expires:202601122100;;227559

open lake forecast for lake superior
national weather service marquette mi
1000 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 ridge builds to 29.9 inches by this evening, 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 while weakening 
to 30.1 inches. 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-
1000 am est mon jan 12 2026

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

.rest of today...west winds 15 to 25 knots. waves 5 to 8 feet
occasionally to 10 feet 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 15 to 20 feet occasionally to 25 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 1 to
3 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 4 to 7 feet
occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 121501
glfls 
expires:202601122100;;227555

open lake forecast for lake superior
national weather service marquette mi
1000 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 ridge builds to 29.9 inches by this evening, 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 while weakening 
to 30.1 inches. 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-
1000 am est mon jan 12 2026 /900 am cst mon jan 12 2026/

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

.rest of today...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves 2 to 4 feet 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. a
slight chance of snow showers 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 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet. 
.friday...northwest winds 15 to 25 knots becoming north 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 121501
glfls 
expires:202601122100;;227560

open lake forecast for lake superior
national weather service marquette mi
1000 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 ridge builds to 29.9 inches by this evening, 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 while weakening 
to 30.1 inches. 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-
1000 am est mon jan 12 2026

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

.rest of 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 4 to 8 feet occasionally to 10 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 10 to 14 feet occasionally to 18 feet. 
.wednesday...north gales to 45 knots. heavy freezing spray. a
chance of snow showers. waves building to 11 to 15 feet
occasionally to 19 feet, then subsiding to 8 to 11 feet
occasionally to 14 feet. 
.wednesday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight. heavy freezing spray. waves subsiding to
3 to 5 feet occasionally to 7 feet. 
.thursday...southwest winds 10 to 20 knots becoming south 15 to
25 knots. 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 veering northwest. a chance
of snow showers. 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 121501
glfls 
expires:202601122100;;227556

open lake forecast for lake superior
national weather service marquette mi
1000 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 ridge builds to 29.9 inches by this evening, 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 while weakening 
to 30.1 inches. 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-
1000 am est mon jan 12 2026

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

.rest of today...west winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves 3 to 6 feet occasionally to
8 feet 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 12 to 17 feet occasionally to 21 feet. 
.wednesday...north gales to 45 knots diminishing to 20 to
30 knots in the afternoon. a slight chance of snow showers in the
morning. heavy freezing spray. waves subsiding to 5 to 8 feet
occasionally to 10 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
6 feet occasionally to 8 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 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 121501
glfls 
expires:202601122100;;227557

open lake forecast for lake superior
national weather service marquette mi
1000 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 ridge builds to 29.9 inches by this evening, 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 while weakening 
to 30.1 inches. 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-
1000 am est mon jan 12 2026

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

.rest of today...west winds 15 to 25 knots. waves 4 to 7 feet
occasionally to 9 feet 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 12 to
17 feet occasionally to 21 feet. 
.wednesday...north gales to 45 knots. a slight chance of snow
showers in the morning. 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 3 to
5 feet occasionally to 7 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 5 to 8 feet occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 121501
glfls 
expires:202601122100;;227558

open lake forecast for lake superior
national weather service marquette mi
1000 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 ridge builds to 29.9 inches by this evening, 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 while weakening 
to 30.1 inches. 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-
1000 am est mon jan 12 2026

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

.rest of today...west winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves 3 to 5 feet occasionally to
7 feet 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 15 to 20 feet occasionally to 25 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
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 4 to 7 feet
occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$