fzus63 kdtx 191456
glflh 
expires:202601192300;;161323

open lake forecast for lake huron
national weather service detroit/pontiac mi
956 am est mon jan 19 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...several successive disturbances of varying magnitude
work through the central great lakes through much of this week.
this results in elevated winds, waves, freezing spray, and snow
squalls. gale warnings and heavy freezing spray warnings are in
effect.


lhz362-363-462-192300-
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-
lake huron from port austin to harbor beach beyond 5nm off shore-
956 am est mon jan 19 2026

...heavy freezing spray warning in effect through tuesday
morning...
...gale warning in effect through this evening...

.rest of today...west winds 20 to 25 knots increasing to 30 knots
in the afternoon. gusts to 35 knot gales. snow likely. freezing
spray. waves 8 to 12 feet building to 10 to 14 feet late in the
afternoon. waves occasionally around 18 feet. 
.tonight...west winds to 30 knots with gusts to 35 knot gales
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 subsiding to 8 to
12 feet early in the morning. waves occasionally around 18 feet. 
.tuesday...west winds 20 to 25 knots. gusts to 30 knots early in
the morning. heavy freezing spray. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.tuesday night...southwest winds 20 to 25 knots decreasing to
15 to 20 knots after midnight. freezing spray. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.wednesday...southwest winds 15 to 20 knots increasing to 20 to
25 knots late in the evening. a chance of snow. freezing spray
late in the evening. waves 5 to 7 feet. waves occasionally around
10 feet. 
.thursday...west winds 20 to 25 knots increasing to 30 knots
early in the evening...then decreasing to 20 to 25 knots by
midnight. 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
becoming northwest 15 to 20 knots by midnight. heavy freezing
spray. waves 8 to 12 feet. waves occasionally around 15 feet. 


$$

fzus63 kdtx 191456
glflh 
expires:202601192300;;161322

open lake forecast for lake huron
national weather service detroit/pontiac mi
956 am est mon jan 19 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...several successive disturbances of varying magnitude
work through the central great lakes through much of this week.
this results in elevated winds, waves, freezing spray, and snow
squalls. gale warnings and heavy freezing spray warnings are in
effect.


lhz361-192300-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
956 am est mon jan 19 2026

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

.rest of today...west winds 15 to 20 knots becoming northwest
20 to 25 knots with gusts to 35 knot gales in the afternoon.
snow. heavy freezing spray. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.tonight...west winds 20 to 25 knots. gusts to 30 knots in the
evening. a chance of snow in the evening. heavy freezing spray.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.tuesday...west winds 20 to 25 knots. heavy freezing spray. waves
6 to 9 feet. waves occasionally around 12 feet. 
.tuesday night...southwest winds 15 to 20 knots decreasing to
10 to 15 knots after midnight. heavy freezing spray in the
evening. waves 4 to 6 feet. 
.wednesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots late in the evening. a chance of snow. freezing spray
late in the evening. waves 2 to 4 feet building to 4 to 6 feet
late in the evening. waves occasionally around 8 feet. 
.thursday...west winds 20 to 25 knots. gusts to 30 knots. heavy
freezing spray. waves 6 to 9 feet. waves occasionally around
12 feet. 
.friday...west winds 20 to 25 knots becoming northwest 15 to
20 knots. heavy freezing spray until afternoon. waves 5 to
7 feet. waves occasionally around 10 feet. 


$$

fzus63 kmkx 191424
glflm 
expires:202601192230;;160618

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
824 am cst mon jan 19 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...

low pressure around 29.5 inches will move from the eastern upper
peninsula of michigan to eastern ontario today. widespread gales 
are expected through much of today, with a gale warning in effect
until 6 pm cst this evening for all of lake michigan.

winds will weaken somewhat this evening into early tuesday 
morning, as high pressure around 30.4 inches remains well south of
the region. winds will shift southwesterly tuesday afternoon, as 
the high moves into tennessee. elevated waves and arriving arctic
air will lead to areas of heavy freezing spray through tuesday 
morning. a heavy freezing spray warning remains in effect until 
noon cst tuesday for all of lake michigan.

west to southwest winds will continue into wednesday, as low 
pressure around 29.6 inches passes across the lake. 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. arriving arctic air and elevated wave heights 
will support additional periods of moderate to potentially heavy 
freezing spray wednesday night into thursday. 

winds will turn north to northwest friday, as strong high 
pressure around 30.8 inches builds into the northern great plains.


lmz080-669-671-673-675-777-779-870-872-874-876-878-192230-
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-
824 am cst mon jan 19 2026

sheboygan wi to pentwater mi south...

...gale warning in effect until 6 pm cst this evening...
...heavy freezing spray warning in effect through tuesday
morning...

.rest of today...northwest gales to 40 kt becoming west to 30 kt.
heavy freezing spray. chance of snow showers. waves 12 to 16 ft
occasionally to 21 ft. 
.tonight...west winds to 30 kt. heavy freezing spray. chance of
snow showers in the evening, then scattered snow showers
overnight. waves 8 to 12 ft occasionally to 16 ft subsiding to
8 to 11 ft occasionally to 14 ft. 
.tuesday...west winds to 30 kt diminishing to 15 to 25 kt late in
the morning, then becoming west 15 to 25 kt early in the
afternoon becoming southwest 10 to 20 kt late. scattered snow
showers in the morning. heavy freezing spray in the morning, then
freezing spray in the afternoon. waves 6 to 9 ft occasionally to
12 ft subsiding to 4 to 7 ft occasionally to 9 ft. 
.tuesday night...southwest winds 10 to 20 kt increasing to 15 to
25 kt. chance of snow in the evening, then snow overnight. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft. 
.wednesday...west winds 15 to 25 kt increasing to 30 kt. chance
of snow in the morning. waves 5 to 8 ft occasionally to 10 ft. 
.wednesday night...west winds to 30 kt increasing to gales to
35 kt. freezing spray. chance of snow. waves 7 to 10 ft
occasionally to 13 ft building to 8 to 11 ft occasionally to
14 ft. 
.thursday...west winds to 30 kt. freezing spray. chance of snow.
waves 8 to 11 ft occasionally to 14 ft. 
.friday...northwest winds to 30 kt. heavy freezing spray. chance
of snow. waves 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 191424
glflm 
expires:202601192230;;160617

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
824 am cst mon jan 19 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...

low pressure around 29.5 inches will move from the eastern upper
peninsula of michigan to eastern ontario today. widespread gales 
are expected through much of today, with a gale warning in effect
until 6 pm cst this evening for all of lake michigan.

winds will weaken somewhat this evening into early tuesday 
morning, as high pressure around 30.4 inches remains well south of
the region. winds will shift southwesterly tuesday afternoon, as 
the high moves into tennessee. elevated waves and arriving arctic
air will lead to areas of heavy freezing spray through tuesday 
morning. a heavy freezing spray warning remains in effect until 
noon cst tuesday for all of lake michigan.

west to southwest winds will continue into wednesday, as low 
pressure around 29.6 inches passes across the lake. 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. arriving arctic air and elevated wave heights 
will support additional periods of moderate to potentially heavy 
freezing spray wednesday night into thursday. 

winds will turn north to northwest friday, as strong high 
pressure around 30.8 inches builds into the northern great plains.


lmz261-362-364-366-563-565-567-868-192230-
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-
824 am cst mon jan 19 2026

sheboygan wi to pentwater mi north...

...gale warning in effect until 6 pm cst this evening...
...heavy freezing spray warning in effect through tuesday
morning...

.rest of today...northwest gales to 40 kt diminishing to 30 kt.
chance of snow showers. heavy freezing spray. waves 10 to 14 ft 
occasionally to 18 ft subsiding to 8 to 11 ft occasionally to 14 
ft. 
.tonight...west winds to 30 kt. heavy freezing spray. slight
chance of snow showers in the evening, then isolated snow showers
overnight. waves 7 to 10 ft occasionally to 13 ft. 
.tuesday...west winds to 30 kt diminishing to 15 to 25 kt. heavy
freezing spray in the morning. waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.tuesday night...west winds 15 to 25 kt diminishing to 10 to
20 kt. chance of snow overnight. waves 4 to 6 ft occasionally to
8 ft. 
.wednesday...west winds 10 to 20 kt increasing to 15 to 25 kt.
chance of snow. waves 4 to 6 ft occasionally to 8 ft. 
.wednesday night...west winds to 30 kt. freezing spray. chance of
snow. waves 6 to 9 ft occasionally to 12 ft. 
.thursday...west winds to 30 kt. heavy freezing spray. waves 7 to
10 ft occasionally to 13 ft. 
.friday...northwest winds to 30 kt. waves 5 to 8 ft occasionally
to 10 ft.  

$$

fzus63 kmqt 191501
glfls 
expires:202601192100;;161562

open lake forecast for lake superior
national weather service marquette mi
1000 am est mon jan 19 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 low of 29.6 inches just north of lake huron moves to quebec this 
afternoon while a high pressure of 30.6 inches is dropping south 
over the plains. this high builds weak ridging of 30.0 inches over 
much of lake superior today, which strengthens to 30.1 inches by 
tuesday morning as a very weak trough of 30.0 inches scoots through 
the lake. a 29.8 inch low then moves over lower michigan on 
wednesday ahead of a secondary 29.8 inch low moving into lake 
superior later in the day. as the lows phase and continue east 
wednesday night into thursday, a weak remnant trough of 30.0 inches 
extends over the lake. after that, a 31.0 inch high builds from the 
canadian prairies into the northern plains thursday night through 
friday. this high builds into the upper midwest friday night into 
saturday as it weakens to 30.7 inches.



lsz265-192100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am est mon jan 19 2026

...gale warning in effect until 1 pm est this afternoon...
...heavy freezing spray warning in effect through tuesday
evening...

.rest of today...northwest gales to 40 knots. heavy freezing
spray. snow showers likely late in the morning. a chance of snow
showers in the afternoon. waves 12 to 17 feet occasionally to
21 feet subsiding to 6 to 9 feet occasionally to 11 feet. 
.tonight...northwest gales to 35 knots diminishing to 20 to
30 knots by midnight. heavy freezing spray. a chance of snow
showers. waves subsiding to 5 to 8 feet occasionally to 10 feet,
then building to 6 to 9 feet occasionally to 11 feet. 
.tuesday...west gales to 35 knots diminishing to 20 to 30 knots
by mid afternoon. heavy freezing spray. a chance of snow showers.
waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...west winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. a slight chance of snow showers. waves
subsiding to 1 to 3 feet. 
.wednesday...southwest winds 15 to 25 knots veering west in the
afternoon. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 1 to 3 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 5 to 8 feet occasionally to
10 feet. 
.thursday...west gales to 35 knots veering northwest. heavy
freezing spray. a chance of snow showers. waves building to 5 to
9 feet occasionally to 11 feet. 
.friday...northwest gales to 35 knots diminishing to 20 to
30 knots. a chance of snow showers. waves subsiding to 3 to
5 feet occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 191501
glfls 
expires:202601192100;;161563

open lake forecast for lake superior
national weather service marquette mi
1000 am est mon jan 19 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 low of 29.6 inches just north of lake huron moves to quebec this 
afternoon while a high pressure of 30.6 inches is dropping south 
over the plains. this high builds weak ridging of 30.0 inches over 
much of lake superior today, which strengthens to 30.1 inches by 
tuesday morning as a very weak trough of 30.0 inches scoots through 
the lake. a 29.8 inch low then moves over lower michigan on 
wednesday ahead of a secondary 29.8 inch low moving into lake 
superior later in the day. as the lows phase and continue east 
wednesday night into thursday, a weak remnant trough of 30.0 inches 
extends over the lake. after that, a 31.0 inch high builds from the 
canadian prairies into the northern plains thursday night through 
friday. this high builds into the upper midwest friday night into 
saturday as it weakens to 30.7 inches.



lsz266-192100-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1000 am est mon jan 19 2026

...gale warning in effect until 7 pm est this evening...
...heavy freezing spray warning in effect through tuesday
evening...

.rest of today...north gales to 40 knots becoming northwest gales
to 35 knots by mid afternoon. heavy freezing spray. snow showers.
waves 15 to 20 feet occasionally to 25 feet subsiding to 9 to
12 feet occasionally to 15 feet. 
.tonight...northwest gales to 35 knots diminishing to 20 to
30 knots by midnight. heavy freezing spray. snow showers likely.
waves subsiding to 7 to 10 feet occasionally to 13 feet, then
building to 8 to 11 feet occasionally to 14 feet. 
.tuesday...west gales to 35 knots diminishing to 20 to 30 knots.
heavy freezing spray. snow showers likely in the morning. a
chance of snow showers in the afternoon. waves 7 to 10 feet
occasionally to 13 feet. 
.tuesday night...west winds 20 to 30 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. 
.wednesday...southwest winds 10 to 20 knots becoming west 15 to
25 knots in the 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...northwest gales to 35 knots. heavy freezing spray. a
chance of snow showers. waves building to 8 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
building to 9 to 12 feet occasionally to 15 feet, then subsiding
to 4 to 7 feet occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 191501
glfls 
expires:202601192100;;161564

open lake forecast for lake superior
national weather service marquette mi
1000 am est mon jan 19 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 low of 29.6 inches just north of lake huron moves to quebec this 
afternoon while a high pressure of 30.6 inches is dropping south 
over the plains. this high builds weak ridging of 30.0 inches over 
much of lake superior today, which strengthens to 30.1 inches by 
tuesday morning as a very weak trough of 30.0 inches scoots through 
the lake. a 29.8 inch low then moves over lower michigan on 
wednesday ahead of a secondary 29.8 inch low moving into lake 
superior later in the day. as the lows phase and continue east 
wednesday night into thursday, a weak remnant trough of 30.0 inches 
extends over the lake. after that, a 31.0 inch high builds from the 
canadian prairies into the northern plains thursday night through 
friday. this high builds into the upper midwest friday night into 
saturday as it weakens to 30.7 inches.



lsz267-192100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am est mon jan 19 2026

...gale warning in effect until 1 pm est this afternoon...
...heavy freezing spray warning in effect through late tuesday
night...

.rest of today...north gales to 35 knots backing northwest by mid
afternoon. heavy freezing spray. snow showers. waves 10 to
14 feet occasionally to 18 feet subsiding to 8 to 11 feet
occasionally to 14 feet, then building to 9 to 12 feet
occasionally to 15 feet. 
.tonight...northwest winds 20 to 30 knots becoming north 15 to
25 knots by midnight, then backing northwest late. 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. 
.tuesday...northwest winds 15 to 25 knots becoming west 20 to
30 knots by late morning, then increasing to gales to 35 knots by
mid afternoon. heavy freezing spray. snow showers likely. waves
building to 7 to 11 feet occasionally to 14 feet. 
.tuesday night...west gales to 35 knots becoming southwest 15 to
25 knots after midnight. heavy freezing spray. a chance of snow
showers. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.wednesday...southwest winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 2 to 4 feet. 
.wednesday night...west winds 15 to 25 knots increasing to 20 to
30 knots after midnight. heavy freezing spray. snow showers
likely in the evening. a chance of snow showers after midnight.
waves building to 7 to 10 feet occasionally to 13 feet. 
.thursday...west gales to 35 knots veering northwest. heavy
freezing spray. snow showers likely. a chance of snow showers.
waves building to 10 to 14 feet occasionally to 18 feet, then
subsiding to 8 to 11 feet occasionally to 14 feet. 
.friday...northwest winds 20 to 30 knots becoming north 15 to
25 knots. heavy freezing spray. a chance of snow showers. waves
subsiding to 4 to 7 feet occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 191501
glfls 
expires:202601192100;;161559

open lake forecast for lake superior
national weather service marquette mi
1000 am est mon jan 19 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 low of 29.6 inches just north of lake huron moves to quebec this 
afternoon while a high pressure of 30.6 inches is dropping south 
over the plains. this high builds weak ridging of 30.0 inches over 
much of lake superior today, which strengthens to 30.1 inches by 
tuesday morning as a very weak trough of 30.0 inches scoots through 
the lake. a 29.8 inch low then moves over lower michigan on 
wednesday ahead of a secondary 29.8 inch low moving into lake 
superior later in the day. as the lows phase and continue east 
wednesday night into thursday, a weak remnant trough of 30.0 inches 
extends over the lake. after that, a 31.0 inch high builds from the 
canadian prairies into the northern plains thursday night through 
friday. this high builds into the upper midwest friday night into 
saturday as it weakens to 30.7 inches.



lsz162-192100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est mon jan 19 2026 /900 am cst mon jan 19 2026/

...heavy freezing spray warning in effect through this evening...

.rest of today...northwest winds 20 to 30 knots. heavy freezing
spray. a chance of snow showers. waves 5 to 8 feet occasionally
to 10 feet subsiding to 3 to 6 feet occasionally to 8 feet, then
building to 4 to 7 feet occasionally to 9 feet. 
.tonight...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by midnight. a chance of snow showers. waves subsiding
to 3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.tuesday night...west winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.wednesday...west winds 10 to 20 knots. a chance of snow showers.
waves 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. 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. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 191501
glfls 
expires:202601192100;;161560

open lake forecast for lake superior
national weather service marquette mi
1000 am est mon jan 19 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 low of 29.6 inches just north of lake huron moves to quebec this 
afternoon while a high pressure of 30.6 inches is dropping south 
over the plains. this high builds weak ridging of 30.0 inches over 
much of lake superior today, which strengthens to 30.1 inches by 
tuesday morning as a very weak trough of 30.0 inches scoots through 
the lake. a 29.8 inch low then moves over lower michigan on 
wednesday ahead of a secondary 29.8 inch low moving into lake 
superior later in the day. as the lows phase and continue east 
wednesday night into thursday, a weak remnant trough of 30.0 inches 
extends over the lake. after that, a 31.0 inch high builds from the 
canadian prairies into the northern plains thursday night through 
friday. this high builds into the upper midwest friday night into 
saturday as it weakens to 30.7 inches.



lsz263-192100-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1000 am est mon jan 19 2026

...heavy freezing spray warning in effect through tuesday
evening...

.rest of today...northwest winds 20 to 30 knots diminishing to
15 to 25 knots by late morning, then increasing to 20 to 30 knots
by mid afternoon. heavy freezing spray. snow showers likely late
in the morning. a chance of snow showers in the afternoon. waves
7 to 10 feet occasionally to 13 feet subsiding to 4 to 7 feet
occasionally to 9 feet, then building to 6 to 9 feet occasionally
to 11 feet. 
.tonight...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by midnight. heavy freezing spray. a chance of snow
showers. waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.tuesday...west winds 15 to 25 knots. heavy freezing spray. a
slight chance of snow showers. waves 4 to 7 feet occasionally to
9 feet. 
.tuesday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. a slight chance of snow showers after
midnight. waves subsiding to 2 to 4 feet. 
.wednesday...west winds 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. waves
building to 4 to 7 feet occasionally to 9 feet. 
.thursday...northwest winds 20 to 30 knots. heavy freezing spray.
waves building to 4 to 8 feet occasionally to 10 feet. 
.friday...northwest winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 191501
glfls 
expires:202601192100;;161561

open lake forecast for lake superior
national weather service marquette mi
1000 am est mon jan 19 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 low of 29.6 inches just north of lake huron moves to quebec this 
afternoon while a high pressure of 30.6 inches is dropping south 
over the plains. this high builds weak ridging of 30.0 inches over 
much of lake superior today, which strengthens to 30.1 inches by 
tuesday morning as a very weak trough of 30.0 inches scoots through 
the lake. a 29.8 inch low then moves over lower michigan on 
wednesday ahead of a secondary 29.8 inch low moving into lake 
superior later in the day. as the lows phase and continue east 
wednesday night into thursday, a weak remnant trough of 30.0 inches 
extends over the lake. after that, a 31.0 inch high builds from the 
canadian prairies into the northern plains thursday night through 
friday. this high builds into the upper midwest friday night into 
saturday as it weakens to 30.7 inches.



lsz264-192100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am est mon jan 19 2026

...gale warning in effect until 1 pm est this afternoon...
...heavy freezing spray warning in effect through tuesday
evening...

.rest of today...north winds 20 to 30 knots backing northwest by
late morning, then diminishing to 15 to 25 knots by mid
afternoon. heavy freezing spray. snow showers likely. waves 10 to
14 feet occasionally to 18 feet subsiding to 5 to 8 feet
occasionally to 10 feet. 
.tonight...northwest winds 15 to 25 knots. heavy freezing spray.
a chance of snow showers. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.tuesday...west winds 15 to 25 knots. heavy freezing spray. a
slight chance of snow showers. waves building to 4 to 8 feet
occasionally to 10 feet. 
.tuesday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. freezing spray in the evening. a slight
chance of snow showers. waves subsiding to 2 to 4 feet. 
.wednesday...west winds 10 to 20 knots veering northwest in the
afternoon. 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. waves
building to 5 to 8 feet occasionally to 10 feet. 
.thursday...northwest winds 20 to 30 knots. heavy freezing spray.
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 3 to 5 feet
occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$