fzus63 kdtx 130249
glflh 
expires:202601131100;;254285

open lake forecast for lake huron
national weather service detroit/pontiac mi
949 pm 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. winds speeds steadily
decrease thursday with a passing surface ridge axis, then flip 
southerly by friday ahead of the next clipper system. 



lhz361-362-131100-
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-
949 pm est mon jan 12 2026

.rest of tonight...west winds 10 to 15 knots becoming southwest
5 to 10 knots after midnight...then becoming south 10 to 15 knots
early in the morning. waves 2 to 4 feet subsiding to 1 to 3 feet
early in the morning. 
.tuesday...south winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and early afternoon...then becoming
southwest 15 to 20 knots late in the afternoon. snow showers and
showers likely in the morning...then rain and snow showers 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...southwest winds 15 to 20 knots becoming west
20 to 25 knots after midnight. rain and snow showers in the
evening. waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday...northwest winds 20 to 25 knots with gusts to around
30 knots veering to the north with gusts to around 30 knots early
in the afternoon. heavy freezing spray. a chance of snow in the
afternoon. waves 8 to 12 feet. waves occasionally around 15 feet.
.wednesday night...north winds to 30 knots decreasing to 20 to
25 knots with gusts to around 30 knots in the late evening and
overnight. a chance of snow in the evening. heavy freezing spray.
waves 10 to 14 feet. waves occasionally around 18 feet. 
.thursday...north winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then backing to the northwest late
in the afternoon backing to the west late in the evening. heavy
freezing spray in the morning. waves 6 to 9 feet subsiding to
3 to 5 feet late in the afternoon. waves occasionally around
12 feet. 
.friday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots . waves 3 to 5 feet. 
.saturday...southwest winds 10 to 15 knots becoming west 15 to
20 knots by midnight. waves 3 to 5 feet. 


$$

fzus63 kdtx 130249
glflh 
expires:202601131100;;254286

open lake forecast for lake huron
national weather service detroit/pontiac mi
949 pm 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. winds speeds steadily
decrease thursday with a passing surface ridge axis, then flip 
southerly by friday ahead of the next clipper system. 



lhz363-462>464-131100-
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-
949 pm est mon jan 12 2026

.rest of 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 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 showers in the morning...
then a chance of rain and snow showers likely in the afternoon.
waves 4 to 6 feet building to 8 to 12 feet in the afternoon.
waves occasionally around 15 feet. 
.tuesday night...southwest winds 15 to 20 knots. a chance of
showers in the evening. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest 20 to
25 knots with gusts to around 30 knots in the late morning and
afternoon. a chance of snow. freezing spray in the afternoon.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.wednesday night...north winds to 30 knots decreasing to 20 to
25 knots after midnight. a chance of snow. heavy freezing spray.
waves 12 to 16 feet. waves occasionally around 20 feet. 
.thursday...north winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots late in the morning...then
backing to the west late in the evening. freezing spray. waves
10 to 14 feet subsiding to 4 to 6 feet late in the afternoon.
waves occasionally around 18 feet. 
.friday...south winds 15 to 20 knots. waves 3 to 5 feet. 
.saturday...southwest winds 10 to 15 knots increasing to 15 to
20 knots . a chance of snow until early evening. freezing spray
by midnight. waves 3 to 5 feet. 


$$

fzus63 kmkx 130252
glflm 
expires:202601131015;;254323

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

light southwest to west winds across the lake late this evening 
will persist until a low pressure of 29.3 inches develops near 
the ontario- manitoba border late tonight. the low will deepen to
29.2 inches as moves east toward quebec 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 are anticipated 
from the late morning hours through early evening, with highest 
gusts over the southern two thirds of the open waters. a gale watch 
has been issued between 3 am and 9 pm cst wednesday over northern
lake michigan, and between 6 am cst wednesday and 12 am cst 
thursday over southern lake michigan. will continue to monitor 
trends & determine the need for gale warnings over the next 12-24 
hours. areas of light to moderate freezing spray will accompany 
the passing front wednesday morning through wednesday evening.


lmz261-362-364-366-563-565-567-868-131015-
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-
852 pm cst mon jan 12 2026

sheboygan wi to pentwater mi north...

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

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

$$

fzus63 kmkx 130252
glflm 
expires:202601131015;;254324

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

light southwest to west winds across the lake late this evening 
will persist until a low pressure of 29.3 inches develops near 
the ontario- manitoba border late tonight. the low will deepen to
29.2 inches as moves east toward quebec 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 are anticipated 
from the late morning hours through early evening, with highest 
gusts over the southern two thirds of the open waters. a gale watch 
has been issued between 3 am and 9 pm cst wednesday over northern
lake michigan, and between 6 am cst wednesday and 12 am cst 
thursday over southern lake michigan. will continue to monitor 
trends & determine the need for gale warnings over the next 12-24 
hours. areas of light to moderate freezing spray will accompany 
the passing front wednesday morning through wednesday evening.


lmz080-669-671-673-675-777-779-870-872-874-876-878-131015-
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-
852 pm cst mon jan 12 2026

sheboygan wi to pentwater mi south...

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

.rest of tonight...southwest winds 10 to 20 kt increasing to
30 kt. chance of sprinkles and slight chance of rain overnight.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. 
.tuesday...southwest winds to 30 kt becoming west 15 to 25 kt.
slight chance of rain. waves 6 to 9 ft occasionally to 12 ft. 
.tuesday night...west winds 15 to 25 kt becoming northwest gales
to 35 kt. waves 5 to 8 ft occasionally to 10 ft building to 8 to
11 ft occasionally to 14 ft. 
.wednesday...north gales to 40 kt increasing to gales to 45 kt.
freezing spray. snow likely. waves 15 to 20 ft occasionally to
26 ft. 
.wednesday night...north gales to 45 kt diminishing to gales to
35 kt overnight. freezing spray. chance of snow. waves 14 to
18 ft occasionally to 23 ft. 
.thursday...northwest winds to 30 kt becoming west 10 to 20 kt in
the afternoon. freezing spray in the morning. waves 8 to 12 ft
occasionally to 16 ft subsiding to 5 to 8 ft occasionally to
10 ft. 
.thursday night...southwest winds 15 to 25 kt. chance of snow.
waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft
occasionally to 10 ft. 
.friday...southwest winds 15 to 25 kt becoming west. snow likely.
waves 5 to 8 ft occasionally to 10 ft. 
.saturday...west winds 15 to 25 kt. freezing spray. snow likely.
waves 5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmqt 130301
glfls 
expires:202601130900;;254640

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 29.3 inch low pressure dropping out of manitoba tonight deepens to 
29.2 inches while moving over northern lake superior tuesday. this 
low then tracks through quebec tuesday night into wednesday morning. 
meanwhile, a 30.5 inch high pressure builds over the eastern dakotas 
wednesday morning, sliding over the western great lakes thursday 
while weakening to 30.1 inches. the ridging is followed up by a 29.4 
inch low moving over lake superior on friday, which weakens to 29.6 
inches over the upper great lakes on saturday.



lsz162-130900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est mon jan 12 2026 /900 pm cst mon jan 12 2026/

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

.rest of tonight...southwest winds 10 to 20 knots increasing to
15 to 25 knots late. a slight chance of snow showers late in the
evening, then rain and snow showers likely after midnight. waves
calm to 2 feet building to 2 to 4 feet. 
.tuesday...west winds 15 to 25 knots increasing to 20 to 30 knots
by mid afternoon. a chance of rain showers, possibly mixed with
snow. waves building to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...northwest gales to 35 knots becoming north gales
to 40 knots by midnight. heavy freezing spray after midnight. a
slight chance of snow showers after midnight. waves building to
6 to 9 feet occasionally to 11 feet. 
.wednesday...north gales to 35 knots becoming northwest 15 to
25 knots in the afternoon. heavy freezing spray in the morning.
waves subsiding to 2 to 4 feet. 
.wednesday night...north winds 15 to 25 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a chance of snow showers. waves
building to 2 to 4 feet. 
.thursday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. snow showers likely in the
evening, then a chance of snow showers after midnight. waves
subsiding to calm to 2 feet. 
.friday...northwest winds 15 to 25 knots becoming north 20 to
30 knots. snow showers likely, then a chance of snow showers.
waves building to 2 to 4 feet. 
.saturday...north winds 20 to 30 knots backing northwest. waves
subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130301
glfls 
expires:202601130900;;254641

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 29.3 inch low pressure dropping out of manitoba tonight deepens to 
29.2 inches while moving over northern lake superior tuesday. this 
low then tracks through quebec tuesday night into wednesday morning. 
meanwhile, a 30.5 inch high pressure builds over the eastern dakotas 
wednesday morning, sliding over the western great lakes thursday 
while weakening to 30.1 inches. the ridging is followed up by a 29.4 
inch low moving over lake superior on friday, which weakens to 29.6 
inches over the upper great lakes on saturday.



lsz263-130900-
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 pm est mon jan 12 2026

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

.rest of tonight...southwest winds 5 to 15 knots increasing to
10 to 20 knots by midnight. rain showers, possibly mixed with
snow after midnight. waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday...west winds 15 to 25 knots. a chance of rain and snow
showers. waves building to 4 to 7 feet occasionally to 9 feet. 
.tuesday night...north gales to 45 knots. heavy freezing spray. a
slight chance of rain showers in the evening. a chance of snow
showers. waves building to 11 to 15 feet occasionally to 19 feet.
.wednesday...north gales to 40 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 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 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves subsiding to calm to 2 feet,
then building to 3 to 5 feet occasionally to 7 feet. 
.thursday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. a chance of snow showers. waves
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 building to 3 to 6 feet
occasionally to 8 feet. 
.saturday...north winds 20 to 30 knots. heavy freezing spray.
waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130301
glfls 
expires:202601130900;;254642

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 29.3 inch low pressure dropping out of manitoba tonight deepens to 
29.2 inches while moving over northern lake superior tuesday. this 
low then tracks through quebec tuesday night into wednesday morning. 
meanwhile, a 30.5 inch high pressure builds over the eastern dakotas 
wednesday morning, sliding over the western great lakes thursday 
while weakening to 30.1 inches. the ridging is followed up by a 29.4 
inch low moving over lake superior on friday, which weakens to 29.6 
inches over the upper great lakes on saturday.



lsz264-130900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est mon jan 12 2026

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

.rest of tonight...southwest winds 5 to 15 knots becoming south
10 to 20 knots late. rain showers likely, possibly mixed with
snow showers after midnight. waves 1 to 3 feet building to 2 to
4 feet. 
.tuesday...southwest winds 15 to 25 knots veering northwest by
mid afternoon. snow showers in the morning. a chance of rain
showers. a chance of snow showers in the afternoon. waves
building to 4 to 7 feet occasionally to 9 feet. 
.tuesday night...north gales to 45 knots. heavy freezing spray. a
chance of snow showers. waves building to 12 to 17 feet
occasionally to 21 feet. 
.wednesday...north gales to 40 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 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 2 to 4 feet. 
.thursday...west winds 5 to 15 knots becoming southwest 15 to
25 knots in the afternoon. waves subsiding to calm to 2 feet,
then building to 2 to 4 feet. 
.thursday night...southwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. a chance of snow showers. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet. 
.friday...north winds 15 to 25 knots increasing to 20 to
30 knots. a chance of snow showers. heavy freezing spray. waves
subsiding to 1 to 3 feet, then building to 4 to 7 feet
occasionally to 9 feet. 
.saturday...north winds 20 to 30 knots. heavy freezing spray.
waves building to 4 to 8 feet occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130301
glfls 
expires:202601130900;;254643

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 29.3 inch low pressure dropping out of manitoba tonight deepens to 
29.2 inches while moving over northern lake superior tuesday. this 
low then tracks through quebec tuesday night into wednesday morning. 
meanwhile, a 30.5 inch high pressure builds over the eastern dakotas 
wednesday morning, sliding over the western great lakes thursday 
while weakening to 30.1 inches. the ridging is followed up by a 29.4 
inch low moving over lake superior on friday, which weakens to 29.6 
inches over the upper great lakes on saturday.



lsz265-130900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est mon jan 12 2026

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

.rest of tonight...southwest winds 10 to 20 knots backing south
by midnight. a chance of rain showers, possibly mixed with snow
after midnight. waves calm to 2 feet. 
.tuesday...southwest winds 15 to 25 knots veering west by late
morning, then increasing to 20 to 30 knots by mid afternoon. rain
showers, possibly mixed with snow 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...northwest gales to 40 knots becoming north gales
to 45 knots by midnight, then increasing to gales to 45 knots
with a few storm force gusts to 50 knots possible late. heavy
freezing spray. rain showers likely in the evening. snow showers
likely. 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 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. a slight chance of snow
showers. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...west winds 10 to 20 knots becoming southwest 15 to
25 knots in the afternoon. waves subsiding to calm to 2 feet. 
.thursday night...southwest winds 15 to 25 knots. a chance of
snow showers. waves building to 1 to 3 feet, then subsiding to
calm to 2 feet. 
.friday...west winds 10 to 20 knots becoming north 20 to
30 knots. a chance of snow showers. waves building to 4 to 7 feet
occasionally to 9 feet. 
.saturday...north gales to 35 knots backing northwest. heavy
freezing spray. a chance of snow showers. waves building to 5 to
9 feet occasionally to 11 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130301
glfls 
expires:202601130900;;254644

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 29.3 inch low pressure dropping out of manitoba tonight deepens to 
29.2 inches while moving over northern lake superior tuesday. this 
low then tracks through quebec tuesday night into wednesday morning. 
meanwhile, a 30.5 inch high pressure builds over the eastern dakotas 
wednesday morning, sliding over the western great lakes thursday 
while weakening to 30.1 inches. the ridging is followed up by a 29.4 
inch low moving over lake superior on friday, which weakens to 29.6 
inches over the upper great lakes on saturday.



lsz266-130900-
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 pm est mon jan 12 2026

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

.rest of tonight...southwest winds 10 to 20 knots backing south
by midnight, then increasing to 15 to 25 knots late. rain showers
likely, possibly mixed with snow showers after midnight. waves
3 to 5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.tuesday...south winds 15 to 25 knots veering west by late
morning, then becoming northwest 20 to 30 knots by mid afternoon.
snow showers, possibly mixed with rain 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...northwest gales to 40 knots becoming north gales
to 45 knots by midnight, then increasing to gales to 45 knots
with a few storm force gusts to 50 knots possible late. heavy
freezing spray. a chance of snow showers, possibly mixed with
rain in the evening. snow showers after midnight. waves building
to 17 to 22 feet occasionally to 28 feet. 
.wednesday...north gales to 45 knots. heavy freezing spray. a
chance of snow showers. waves subsiding to 11 to 15 feet
occasionally to 19 feet. 
.wednesday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight. freezing spray. a chance of snow
showers. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...northwest winds 10 to 20 knots becoming southwest
15 to 25 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.thursday night...southwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of snow showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.friday...southwest winds 15 to 25 knots becoming north 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. 
.saturday...north winds 20 to 30 knots increasing to gales to
35 knots. heavy freezing spray. a chance of snow showers. waves
building to 6 to 9 feet occasionally to 11 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130301
glfls 
expires:202601130900;;254645

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 29.3 inch low pressure dropping out of manitoba tonight deepens to 
29.2 inches while moving over northern lake superior tuesday. this 
low then tracks through quebec tuesday night into wednesday morning. 
meanwhile, a 30.5 inch high pressure builds over the eastern dakotas 
wednesday morning, sliding over the western great lakes thursday 
while weakening to 30.1 inches. the ridging is followed up by a 29.4 
inch low moving over lake superior on friday, which weakens to 29.6 
inches over the upper great lakes on saturday.



lsz267-130900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est mon jan 12 2026

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

.rest of tonight...west winds 10 to 20 knots backing southwest by
midnight, then becoming south 15 to 25 knots late. a slight
chance of snow showers after midnight. waves 3 to 5 feet
occasionally to 7 feet subsiding to 2 to 4 feet. 
.tuesday...south winds 20 to 30 knots veering west 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 40 knots by midnight. rain showers likely in the
evening. snow showers. heavy freezing spray after midnight. waves
building to 12 to 17 feet occasionally to 21 feet, then subsiding
to 11 to 15 feet occasionally to 19 feet. 
.wednesday...north gales to 40 knots. heavy freezing spray. a
chance of snow showers. waves 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. a slight chance of snow showers in the
evening. heavy freezing spray. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.thursday...north winds 10 to 20 knots backing west in the
afternoon. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.thursday night...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 2 to 4 feet. 
.friday...south winds 15 to 25 knots backing north. a chance of
snow showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.saturday...north winds 15 to 25 knots increasing to 20 to
30 knots. heavy freezing spray. 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.

$$