fzus63 kdtx 202059
glflh 
expires:202601210500;;231188

open lake forecast for lake huron
national weather service detroit/pontiac mi
359 pm 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...broad high pressure out of the tennessee valley has
provided a period of drier conditions today. active weather 
stretch continues the rest of the week with several additional 
disturbances working through the central great lakes. this will
result in very cold conditions, elevated winds/waves, areas of 
heavy freezing spray, and periods of snowfall throughout the week.


lhz361-210500-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
359 pm est tue jan 20 2026

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


$$

fzus63 kdtx 202059
glflh 
expires:202601210500;;231189

open lake forecast for lake huron
national weather service detroit/pontiac mi
359 pm 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...broad high pressure out of the tennessee valley has
provided a period of drier conditions today. active weather 
stretch continues the rest of the week with several additional 
disturbances working through the central great lakes. this will
result in very cold conditions, elevated winds/waves, areas of 
heavy freezing spray, and periods of snowfall throughout the week.


lhz362-363-210500-
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-
359 pm est tue jan 20 2026

.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. waves 6 to 9 feet. waves occasionally around
12 feet. 
.wednesday...south winds 15 to 20 knots veering to the southwest
late in the afternoon. snow in the morning...then a chance of
snow in the afternoon. 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 6 to 9 feet.
waves occasionally around 12 feet. 
.thursday...west winds 20 to 25 knots with gusts to around
30 knots. freezing spray. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.thursday night...west winds 20 to 25 knots with gusts to around
30 knots. 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 late in the evening. waves 8 to
12 feet. waves occasionally around 15 feet. 
.saturday...west winds 10 to 15 knots decreasing to 5 to 10 knots
early in the evening...then increasing to 10 to 15 knots by
midnight. waves 3 to 5 feet. 
.sunday...west winds 10 to 15 knots. waves 3 to 5 feet. 


$$

fzus63 kdtx 202059
glflh 
expires:202601210500;;231190

open lake forecast for lake huron
national weather service detroit/pontiac mi
359 pm 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...broad high pressure out of the tennessee valley has
provided a period of drier conditions today. active weather 
stretch continues the rest of the week with several additional 
disturbances working through the central great lakes. this will
result in very cold conditions, elevated winds/waves, areas of 
heavy freezing spray, and periods of snowfall throughout the week.


lhz462>464-210500-
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-
359 pm est tue jan 20 2026

.tonight...southwest winds 20 to 25 knots decreasing to 15 to
20 knots after midnight. 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 15 to 20 knots increasing to
20 to 25 knots in the late evening and overnight. a chance of
snow 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. freezing spray. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.thursday night...west winds 20 to 25 knots with gusts to around
30 knots. 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 late in the evening. waves 6 to
9 feet. waves occasionally around 12 feet. 
.saturday...west winds 10 to 15 knots becoming southwest 5 to
10 knots . waves 3 to 5 feet. 
.sunday...southeast winds 10 to 15 knots veering to the west .
waves 3 to 5 feet. 

wave heights are for ice free areas.

$$

fzus63 kmkx 202020
glflm 
expires:202601210430;;229857

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

west to southwest winds will continue tonight as high pressure of
30.6 inches tracks east across the eastern conus. weak low 
pressure around 30.0 inches tracks across southern lake michigan 
wednesday morning, with westerly winds behind it. southwest winds
reintensify for a brief period (wednesday afternoon and evening)
as a more organized low pressure system of 29.7 inches moves
across lake superior. 

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.


lmz080-669-671-673-675-777-779-870-872-874-876-878-210430-
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-
220 pm cst tue jan 20 2026

sheboygan wi to pentwater mi south...

.tonight...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
chance of snow this 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. 
.wednesday night...southwest winds to 30 kt becoming west gales
to 35 kt. snow likely in the evening. freezing spray overnight.
waves 6 to 9 ft occasionally to 12 ft building to 8 to 12 ft
occasionally to 16 ft. 
.thursday...west winds to 30 kt. freezing spray. chance of snow
in the afternoon. waves 8 to 12 ft occasionally to 16 ft
subsiding to 8 to 11 ft occasionally to 14 ft. 
.thursday night...west gales to 35 kt becoming northwest to
30 kt. chance of snow in the evening. heavy freezing spray. waves
8 to 12 ft occasionally to 16 ft. 
.friday...northwest winds to 30 kt. heavy freezing spray. chance
of snow. waves 8 to 12 ft occasionally to 16 ft subsiding to 7 to
10 ft occasionally to 13 ft. 
.friday night...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. heavy freezing spray. waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.saturday...northwest winds 10 to 15 kt becoming west. waves 3 to
5 ft. 
.sunday...north winds 10 to 15 kt becoming northwest. chance of
snow. waves 3 to 5 ft.  

$$

fzus63 kmkx 202020
glflm 
expires:202601210430;;229856

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

west to southwest winds will continue tonight as high pressure of
30.6 inches tracks east across the eastern conus. weak low 
pressure around 30.0 inches tracks across southern lake michigan 
wednesday morning, with westerly winds behind it. southwest winds
reintensify for a brief period (wednesday afternoon and evening)
as a more organized low pressure system of 29.7 inches moves
across lake superior. 

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.


lmz261-362-364-366-563-565-567-868-210430-
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-
220 pm cst tue jan 20 2026

sheboygan wi to pentwater mi north...

.tonight...southwest winds 15 to 25 kt becoming west 10 to 20 kt.
freezing spray this evening. chance of snow overnight. waves 4 to
7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.wednesday...west winds 10 to 15 kt increasing to 15 to 25 kt.
chance of snow. waves 4 to 6 ft occasionally to 8 ft. 
.wednesday night...west winds 15 to 25 kt increasing to 30 kt.
chance of snow in the evening. freezing spray. waves 7 to 10 ft
occasionally to 13 ft. 
.thursday...west winds to 30 kt. heavy freezing spray. waves 7 to
10 ft occasionally to 13 ft subsiding to 6 to 9 ft occasionally
to 12 ft. 
.thursday night...west gales to 35 kt becoming northwest. heavy
freezing spray. waves 7 to 10 ft occasionally to 13 ft.
.friday...northwest winds to 30 kt. heavy freezing spray. waves
7 to 10 ft occasionally to 13 ft. 
.friday night...northwest 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. 
.saturday...northwest winds 10 to 15 kt becoming west. waves 2 to
4 ft subsiding to 1 to 3 ft. 
.sunday...west winds 10 to 15 kt. waves 1 to 3 ft.  

$$

fzus63 kmqt 202101
glfls 
expires:202601210900;;231349

open lake forecast for lake superior
national weather service marquette mi
400 pm 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...

tonight, a high shifts over the virginias at 30.6 inches while a 
29.7 inch low remains stationary over the hudson bay. meanwhile, a 2 
29.9 inch low forms over the ok panhandle, quickly moving over lake 
michigan by tomorrow morning while the 29.7 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 29.6 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.



lsz266-210900-
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-
400 pm est tue jan 20 2026

...heavy freezing spray warning in effect until 1 am est
wednesday...

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 202101
glfls 
expires:202601210900;;231350

open lake forecast for lake superior
national weather service marquette mi
400 pm 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...

tonight, a high shifts over the virginias at 30.6 inches while a 
29.7 inch low remains stationary over the hudson bay. meanwhile, a 2 
29.9 inch low forms over the ok panhandle, quickly moving over lake 
michigan by tomorrow morning while the 29.7 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 29.6 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.



lsz267-210900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est tue jan 20 2026

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

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

$$

fzus63 kmqt 202101
glfls 
expires:202601210900;;231345

open lake forecast for lake superior
national weather service marquette mi
400 pm 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...

tonight, a high shifts over the virginias at 30.6 inches while a 
29.7 inch low remains stationary over the hudson bay. meanwhile, a 2 
29.9 inch low forms over the ok panhandle, quickly moving over lake 
michigan by tomorrow morning while the 29.7 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 29.6 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.



lsz162-210900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est tue jan 20 2026 /300 pm cst tue jan 20 2026/

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 202101
glfls 
expires:202601210900;;231346

open lake forecast for lake superior
national weather service marquette mi
400 pm 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...

tonight, a high shifts over the virginias at 30.6 inches while a 
29.7 inch low remains stationary over the hudson bay. meanwhile, a 2 
29.9 inch low forms over the ok panhandle, quickly moving over lake 
michigan by tomorrow morning while the 29.7 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 29.6 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.



lsz263-210900-
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-
400 pm est tue jan 20 2026

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

.late this afternoon...west winds 20 to 30 knots. heavy freezing
spray. a chance of snow showers. waves 6 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. a chance of snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.wednesday...northwest winds 5 to 15 knots becoming west 10 to
20 knots. a chance of snow showers in the morning, then snow
showers likely in the afternoon. waves subsiding to 2 to 4 feet,
then building to 3 to 5 feet occasionally to 7 feet. 
.wednesday night...northwest winds 15 to 25 knots increasing to
20 to 30 knots late. heavy freezing spray. a 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 subsiding to 4 to 7 feet
occasionally to 9 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. heavy freezing spray in the morning. a
chance of snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.saturday...west winds 10 to 20 knots diminishing to 5 to
15 knots. waves 1 to 3 feet. 
.sunday...west winds 10 to 20 knots increasing to 15 to 25 knots.
waves building to 3 to 5 feet occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 202101
glfls 
expires:202601210900;;231347

open lake forecast for lake superior
national weather service marquette mi
400 pm 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...

tonight, a high shifts over the virginias at 30.6 inches while a 
29.7 inch low remains stationary over the hudson bay. meanwhile, a 2 
29.9 inch low forms over the ok panhandle, quickly moving over lake 
michigan by tomorrow morning while the 29.7 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 29.6 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.



lsz264-210900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est tue jan 20 2026

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

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 202101
glfls 
expires:202601210900;;231348

open lake forecast for lake superior
national weather service marquette mi
400 pm 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...

tonight, a high shifts over the virginias at 30.6 inches while a 
29.7 inch low remains stationary over the hudson bay. meanwhile, a 2 
29.9 inch low forms over the ok panhandle, quickly moving over lake 
michigan by tomorrow morning while the 29.7 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 29.6 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.



lsz265-210900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est tue jan 20 2026

...heavy freezing spray warning in effect until 1 am est
wednesday...

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

note, wave height forecasts are for ice free areas.

$$