fzus63 kdtx 201417
glflh 
expires:202601202230;;215822

open lake forecast for lake huron
national weather service detroit/pontiac mi
917 am est tue jan 20 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...active weather stretch continues this week with
several additional disturbances working through the central great
lakes. this results in very cold conditions, elevated
winds/waves, areas of heavy freezing spray, and periods of
snowfall throughout the week.


lhz361-202230-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
917 am est tue jan 20 2026

...heavy freezing spray warning in effect until 4 pm est this
afternoon...

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


$$

fzus63 kdtx 201417
glflh 
expires:202601202230;;215823

open lake forecast for lake huron
national weather service detroit/pontiac mi
917 am est tue jan 20 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...active weather stretch continues this week with
several additional disturbances working through the central great
lakes. this results in very cold conditions, elevated
winds/waves, areas of heavy freezing spray, and periods of
snowfall throughout the week.


lhz362-363-202230-
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-
917 am est tue jan 20 2026

...heavy freezing spray warning in effect until 4 pm est this
afternoon...

.rest of today...west winds 20 to 25 knots. heavy freezing spray.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.tonight...southwest winds 20 to 25 knots with gusts to around
30 knots becoming south 15 to 20 knots early in the morning.
freezing spray and a chance of. a chance of. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.wednesday...south winds 15 to 20 knots. freezing spray in the
morning. a chance of snow. waves 5 to 7 feet. waves occasionally
around 10 feet. 
.wednesday night...west winds 15 to 20 knots becoming southwest
20 to 25 knots with gusts to around 30 knots in the late evening
and overnight. freezing spray after midnight. waves 5 to 7 feet
building to 8 to 12 feet after midnight. waves occasionally
around 15 feet. 
.thursday...west winds 20 to 25 knots with gusts to around
30 knots. heavy freezing spray. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.friday...west winds 20 to 25 knots with gusts to around 30 knots
decreasing to 15 to 20 knots by midnight. heavy freezing spray.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.saturday...west winds 10 to 15 knots backing to the southwest by
midnight. waves 3 to 5 feet subsiding to 2 to 4 feet by midnight.


$$

fzus63 kdtx 201417
glflh 
expires:202601202230;;215824

open lake forecast for lake huron
national weather service detroit/pontiac mi
917 am est tue jan 20 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...active weather stretch continues this week with
several additional disturbances working through the central great
lakes. this results in very cold conditions, elevated
winds/waves, areas of heavy freezing spray, and periods of
snowfall throughout the week.


lhz462>464-202230-
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-
917 am est tue jan 20 2026

...heavy freezing spray warning in effect until 4 pm est this
afternoon...

.rest of today...west winds 20 to 25 knots. gusts to 30 knots
late in the morning. heavy freezing spray. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.tonight...southwest winds 20 to 25 knots decreasing to 15 to
20 knots after midnight. freezing spray in the evening. waves
5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...south winds 15 to 20 knots. freezing spray in the
morning. snow in the morning...then a chance of snow in the
afternoon. waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday night...southwest winds 20 to 25 knots. gusts to
30 knots in the late evening and overnight. freezing spray after
midnight. waves 5 to 7 feet. waves occasionally around 10 feet. 
.thursday...west winds 20 to 25 knots with gusts to around
30 knots. heavy freezing spray. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.friday...west winds 20 to 25 knots with gusts to around 30 knots
decreasing to 15 to 20 knots . heavy freezing spray. waves 6 to
9 feet. waves occasionally around 12 feet. 
.saturday...west winds 15 to 20 knots decreasing to 10 to
15 knots until early evening...then backing to the south by
midnight. waves 3 to 5 feet subsiding to 1 to 3 feet by midnight.


$$

fzus63 kmkx 201506
glflm 
expires:202601202215;;217125

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
906 am cst tue jan 20 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...

high pressure around 30.6 inches well southeast of the region will
shift east today. gusty west winds this morning will shift west 
southwest this afternoon. elevated waves and arctic air will
continue to lead to areas of heavy freezing spray through this
morning. a heavy freezing spray warning remains in effect until 
noon cst today for all of lake michigan.

west to southwest winds will continue tonight, with low pressure
around 29.8 inches moving across southern lake michigan wednesday
morning. west winds are expected behind the low wednesday
afternoon. 

winds will increase further and shift west to northwest wednesday
night, as another arctic cold front crosses lake michigan. a few 
gale force gusts may occur. gusty west to northwest winds thursday
will will turn mainly northwest friday, as strong high pressure 
around 30.9 inches builds into the northern great plains. a few
gale force gusts may occur during this period.

arriving arctic air and elevated wave heights will support 
additional periods of moderate to potentially heavy freezing spray
wednesday night into friday night.


lmz261-362-364-366-563-565-567-868-202215-
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-
906 am cst tue jan 20 2026

sheboygan wi to pentwater mi north...

...heavy freezing spray warning in effect until noon cst today...

.rest of today...west winds to 30 kt. heavy freezing spray. waves
4 to 7 ft occasionally to 9 ft. 
.tonight...southwest winds 15 to 25 kt becoming west 10 to 20 kt.
freezing spray in the evening. chance of snow overnight. waves
4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.wednesday...northwest winds 10 to 15 kt becoming west 10 to
20 kt, then increasing to 15 to 25 kt late. chance of snow. waves
3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
.wednesday night...west winds to 30 kt. chance of snow in the
evening. freezing spray. waves 6 to 9 ft occasionally to 12 ft. 
.thursday...west winds to 30 kt. heavy freezing spray in the
morning, then freezing spray in the afternoon. waves 7 to 10 ft
occasionally to 13 ft. 
.thursday night...west gales to 35 kt becoming northwest. heavy
freezing spray. waves 6 to 9 ft occasionally to 12 ft. 
.friday...northwest winds to 30 kt. heavy freezing spray. waves
6 to 9 ft occasionally to 12 ft. 
.saturday...northwest winds 10 to 15 kt becoming west. waves 2 to
4 ft.  

$$

fzus63 kmkx 201506
glflm 
expires:202601202215;;217126

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
906 am cst tue jan 20 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...

high pressure around 30.6 inches well southeast of the region will
shift east today. gusty west winds this morning will shift west 
southwest this afternoon. elevated waves and arctic air will
continue to lead to areas of heavy freezing spray through this
morning. a heavy freezing spray warning remains in effect until 
noon cst today for all of lake michigan.

west to southwest winds will continue tonight, with low pressure
around 29.8 inches moving across southern lake michigan wednesday
morning. west winds are expected behind the low wednesday
afternoon. 

winds will increase further and shift west to northwest wednesday
night, as another arctic cold front crosses lake michigan. a few 
gale force gusts may occur. gusty west to northwest winds thursday
will will turn mainly northwest friday, as strong high pressure 
around 30.9 inches builds into the northern great plains. a few
gale force gusts may occur during this period.

arriving arctic air and elevated wave heights will support 
additional periods of moderate to potentially heavy freezing spray
wednesday night into friday night.


lmz080-669-671-673-675-777-779-870-872-874-876-878-202215-
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-
906 am cst tue jan 20 2026

sheboygan wi to pentwater mi south...

...heavy freezing spray warning in effect until noon cst today...

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

$$

fzus63 kmqt 201501
glfls 
expires:202601202100;;216778

open lake forecast for lake superior
national weather service marquette mi
1001 am est tue jan 20 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...

troughing of at least 30.0 inches remains over lake superior while a 
30.5 inch high sits over the lower mississippi valley and a 29.7 
inch low sits over hudson bay. by tonight, the high will shift over 
the virginias at 30.6 inches while the low remains stationary. 
meanwhile, a 30.0 inch low forms over the ok panhandle, quickly 
moving over lake michigan by wednesday morning while the 29.8 inch 
low drops south through ontario. by midday wednesday, the first low 
will move over the michigan lower peninsula at 29.9 inches as the 
second low deepens to 29.7 inches over lake superior by evening. 
these features consolidate into a 29.7 inch low over northeastern 
ontario wednesday night before shifting to quebec thursday morning. 
in the wake of the low, 31.0 inch high pressure will be over 
saskatchewan, shifting over the dakotas friday and overspreading the 
upper midwest at around 30.7 inches saturday.



lsz162-202100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am est tue jan 20 2026 /901 am cst tue jan 20 2026/

.rest of today...west winds 15 to 25 knots. isolated snow
showers. waves 3 to 6 feet occasionally to 8 feet. 
.tonight...west winds 15 to 25 knots diminishing to 10 to
20 knots late. isolated snow showers. waves subsiding to 1 to
3 feet. 
.wednesday...west winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a chance of snow showers. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.wednesday night...northwest winds 15 to 25 knots. waves building
to 3 to 5 feet occasionally to 7 feet. 
.thursday...northwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. a slight chance of snow showers in the
afternoon. waves 3 to 5 feet occasionally to 7 feet. 
.thursday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 2 to 4 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.saturday...west winds 10 to 20 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 201501
glfls 
expires:202601202100;;216779

open lake forecast for lake superior
national weather service marquette mi
1001 am est tue jan 20 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...

troughing of at least 30.0 inches remains over lake superior while a 
30.5 inch high sits over the lower mississippi valley and a 29.7 
inch low sits over hudson bay. by tonight, the high will shift over 
the virginias at 30.6 inches while the low remains stationary. 
meanwhile, a 30.0 inch low forms over the ok panhandle, quickly 
moving over lake michigan by wednesday morning while the 29.8 inch 
low drops south through ontario. by midday wednesday, the first low 
will move over the michigan lower peninsula at 29.9 inches as the 
second low deepens to 29.7 inches over lake superior by evening. 
these features consolidate into a 29.7 inch low over northeastern 
ontario wednesday night before shifting to quebec thursday morning. 
in the wake of the low, 31.0 inch high pressure will be over 
saskatchewan, shifting over the dakotas friday and overspreading the 
upper midwest at around 30.7 inches saturday.



lsz263-202100-
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-
1001 am est tue jan 20 2026

...heavy freezing spray warning in effect until 10 pm est this
evening...

.rest of today...west winds 15 to 25 knots increasing to 20 to
30 knots. heavy freezing spray. scattered snow showers. waves
5 to 9 feet occasionally to 11 feet. 
.tonight...west winds 15 to 25 knots diminishing to 10 to
20 knots late. freezing spray in the evening. scattered snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.wednesday...north winds 5 to 15 knots becoming west 10 to
20 knots. a chance of snow showers. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.wednesday night...northwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. heavy freezing spray. a slight
chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.thursday...northwest winds 20 to 30 knots. heavy freezing spray.
a chance of snow showers. waves subsiding to 4 to 8 feet
occasionally to 10 feet. 
.thursday night...northwest winds 20 to 30 knots. heavy freezing
spray. a chance of snow showers. waves 5 to 8 feet occasionally
to 10 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. heavy freezing spray. waves subsiding to 1 to 3 feet. 
.saturday...west winds 5 to 15 knots. 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 201501
glfls 
expires:202601202100;;216780

open lake forecast for lake superior
national weather service marquette mi
1001 am est tue jan 20 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...

troughing of at least 30.0 inches remains over lake superior while a 
30.5 inch high sits over the lower mississippi valley and a 29.7 
inch low sits over hudson bay. by tonight, the high will shift over 
the virginias at 30.6 inches while the low remains stationary. 
meanwhile, a 30.0 inch low forms over the ok panhandle, quickly 
moving over lake michigan by wednesday morning while the 29.8 inch 
low drops south through ontario. by midday wednesday, the first low 
will move over the michigan lower peninsula at 29.9 inches as the 
second low deepens to 29.7 inches over lake superior by evening. 
these features consolidate into a 29.7 inch low over northeastern 
ontario wednesday night before shifting to quebec thursday morning. 
in the wake of the low, 31.0 inch high pressure will be over 
saskatchewan, shifting over the dakotas friday and overspreading the 
upper midwest at around 30.7 inches saturday.



lsz264-202100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am est tue jan 20 2026

...heavy freezing spray warning in effect until 10 pm est this
evening...

.rest of today...west winds 20 to 30 knots. heavy freezing spray.
scattered snow showers. waves 5 to 9 feet occasionally to
11 feet. 
.tonight...west winds 15 to 25 knots becoming northwest 10 to
20 knots late. freezing spray in the evening. scattered snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.wednesday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. a chance of snow showers. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.wednesday night...northwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. heavy freezing spray. a slight
chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.thursday...northwest winds 20 to 30 knots. heavy freezing spray.
a chance of snow showers. waves subsiding to 4 to 7 feet
occasionally to 9 feet. 
.thursday night...northwest winds 20 to 30 knots. heavy freezing
spray. a chance of snow showers. waves building to 6 to 9 feet
occasionally to 11 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. heavy freezing spray. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.saturday...northwest winds 10 to 20 knots becoming west 5 to
15 knots. 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 201501
glfls 
expires:202601202100;;216781

open lake forecast for lake superior
national weather service marquette mi
1001 am est tue jan 20 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...

troughing of at least 30.0 inches remains over lake superior while a 
30.5 inch high sits over the lower mississippi valley and a 29.7 
inch low sits over hudson bay. by tonight, the high will shift over 
the virginias at 30.6 inches while the low remains stationary. 
meanwhile, a 30.0 inch low forms over the ok panhandle, quickly 
moving over lake michigan by wednesday morning while the 29.8 inch 
low drops south through ontario. by midday wednesday, the first low 
will move over the michigan lower peninsula at 29.9 inches as the 
second low deepens to 29.7 inches over lake superior by evening. 
these features consolidate into a 29.7 inch low over northeastern 
ontario wednesday night before shifting to quebec thursday morning. 
in the wake of the low, 31.0 inch high pressure will be over 
saskatchewan, shifting over the dakotas friday and overspreading the 
upper midwest at around 30.7 inches saturday.



lsz265-202100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am est tue jan 20 2026

...heavy freezing spray warning in effect through late tonight...

.rest of today...west winds to 30 knots with a few gale force
gusts to 35 knots possible. heavy freezing spray. numerous snow
showers late in the morning. scattered snow showers in the
afternoon. waves 4 to 8 feet occasionally to 10 feet. 
.tonight...southwest winds 20 to 30 knots diminishing to 15 to
25 knots late. heavy freezing spray in the evening. scattered
snow showers. waves subsiding to 2 to 4 feet. 
.wednesday...southwest winds 15 to 25 knots veering west by mid
afternoon. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 
.wednesday night...west winds 20 to 30 knots increasing to gales
to 35 knots after midnight. heavy freezing spray. a chance of
snow showers. waves building to 5 to 8 feet occasionally to
10 feet. 
.thursday...west gales to 40 knots. heavy freezing spray. a
chance of snow showers. waves 5 to 8 feet occasionally to
10 feet. 
.thursday night...northwest gales to 40 knots. heavy freezing
spray. snow showers likely in the evening. a chance of snow
showers after midnight. waves building to 6 to 9 feet
occasionally to 11 feet. 
.friday...northwest gales to 35 knots diminishing to 20 to
30 knots. heavy freezing spray. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 201501
glfls 
expires:202601202100;;216782

open lake forecast for lake superior
national weather service marquette mi
1001 am est tue jan 20 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...

troughing of at least 30.0 inches remains over lake superior while a 
30.5 inch high sits over the lower mississippi valley and a 29.7 
inch low sits over hudson bay. by tonight, the high will shift over 
the virginias at 30.6 inches while the low remains stationary. 
meanwhile, a 30.0 inch low forms over the ok panhandle, quickly 
moving over lake michigan by wednesday morning while the 29.8 inch 
low drops south through ontario. by midday wednesday, the first low 
will move over the michigan lower peninsula at 29.9 inches as the 
second low deepens to 29.7 inches over lake superior by evening. 
these features consolidate into a 29.7 inch low over northeastern 
ontario wednesday night before shifting to quebec thursday morning. 
in the wake of the low, 31.0 inch high pressure will be over 
saskatchewan, shifting over the dakotas friday and overspreading the 
upper midwest at around 30.7 inches saturday.



lsz266-202100-
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-
1001 am est tue jan 20 2026

...heavy freezing spray warning in effect through late tonight...

.rest of today...west winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 20 to 30 knots by mid
afternoon. heavy freezing spray. snow showers. waves 8 to 11 feet
occasionally to 14 feet building to 9 to 12 feet occasionally to
15 feet. 
.tonight...west winds 20 to 30 knots diminishing to 15 to
25 knots late. heavy freezing spray. scattered snow showers.
waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.wednesday...southwest winds 10 to 20 knots becoming west 15 to
25 knots by mid afternoon. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.wednesday night...west winds 20 to 30 knots becoming northwest
gales to 35 knots after midnight. heavy freezing spray. a chance
of snow showers. waves building to 7 to 10 feet occasionally to
13 feet. 
.thursday...west gales to 35 knots. heavy freezing spray. snow
showers likely. waves building to 9 to 12 feet occasionally to
15 feet. 
.thursday night...northwest gales to 40 knots. heavy freezing
spray. snow showers likely. waves subsiding to 8 to 11 feet
occasionally to 14 feet, then building to 9 to 12 feet
occasionally to 15 feet. 
.friday...northwest gales to 35 knots diminishing to 20 to
30 knots. heavy freezing spray. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday...northwest winds 15 to 25 knots backing west. a chance
of snow showers. waves subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 201501
glfls 
expires:202601202100;;216783

open lake forecast for lake superior
national weather service marquette mi
1001 am est tue jan 20 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...

troughing of at least 30.0 inches remains over lake superior while a 
30.5 inch high sits over the lower mississippi valley and a 29.7 
inch low sits over hudson bay. by tonight, the high will shift over 
the virginias at 30.6 inches while the low remains stationary. 
meanwhile, a 30.0 inch low forms over the ok panhandle, quickly 
moving over lake michigan by wednesday morning while the 29.8 inch 
low drops south through ontario. by midday wednesday, the first low 
will move over the michigan lower peninsula at 29.9 inches as the 
second low deepens to 29.7 inches over lake superior by evening. 
these features consolidate into a 29.7 inch low over northeastern 
ontario wednesday night before shifting to quebec thursday morning. 
in the wake of the low, 31.0 inch high pressure will be over 
saskatchewan, shifting over the dakotas friday and overspreading the 
upper midwest at around 30.7 inches saturday.



lsz267-202100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am est tue jan 20 2026

...heavy freezing spray warning in effect through wednesday
morning...

.rest of today...west winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible. heavy freezing
spray. snow showers. waves 8 to 11 feet occasionally to 14 feet
building to 9 to 12 feet occasionally to 15 feet. 
.tonight...southwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 15 to 25 knots late.
heavy freezing spray. scattered snow showers. waves subsiding to
4 to 7 feet occasionally to 9 feet. 
.wednesday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots by late morning, then increasing to 15 to 25 knots by
mid afternoon. freezing spray in the morning. a chance of snow
showers. waves subsiding to 2 to 4 feet. 
.wednesday night...west winds 20 to 30 knots becoming northwest
gales to 35 knots after midnight. freezing spray. snow showers
likely. waves building to 7 to 10 feet occasionally to 13 feet. 
.thursday...west gales to 35 knots. heavy freezing spray. snow
showers likely. waves building to 9 to 12 feet occasionally to
15 feet. 
.thursday night...northwest gales to 35 knots. heavy freezing
spray. snow showers. waves subsiding to 8 to 11 feet occasionally
to 14 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. heavy freezing spray. snow showers likely. a chance of
snow showers. waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.saturday...northwest winds 10 to 20 knots backing west. a chance
of snow showers. waves subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$