fzus63 kdtx 040830
glflh 
expires:202602041630;;062204

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 am est wed feb 4 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...modest northwest winds continue to diminish as high
pressure, 30.50 inches, builds in across the great lakes region
wednesday into thursday. an clipper and arctic cold front cross
the central great lakes late friday-saturday bringing the next
chances for gales.


lhz361-041630-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
330 am est wed feb 4 2026

.today...north winds around 10 knots backing to the west in the 
afternoon. waves 2 feet or less. 
.tonight...west winds 5 to 10 knots. waves 2 feet or less. 
.thursday...south winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. a chance of snow in
the afternoon. waves 1 to 3 feet. 
.thursday night...southwest winds 10 to 15 knots. snow likely in
the evening...then a chance of snow after midnight. waves 2 to
4 feet. 
.friday...west winds 10 to 15 knots becoming northwest 20 to
25 knots with gusts to 35 knot gales late in the morning...then
increasing to 30 knots with gusts to 35 knot gales late in the
afternoon decreasing to 15 to 20 knots with gusts to around
30 knots late in the evening. a chance of snow in the morning.
heavy freezing spray late in the afternoon. waves 1 to 3 feet
building to 5 to 7 feet. waves occasionally around 10 feet. 
.saturday...northwest winds 15 to 20 knots becoming north 10 to
15 knots in the late morning and early afternoon...then becoming
northwest 5 to 10 knots . waves 2 to 4 feet subsiding to 1 to
3 feet. 
.sunday...southeast winds 5 to 10 knots veering to the south by
midnight. waves 1 to 3 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 040830
glflh 
expires:202602041630;;062205

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 am est wed feb 4 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...modest northwest winds continue to diminish as high
pressure, 30.50 inches, builds in across the great lakes region
wednesday into thursday. an clipper and arctic cold front cross
the central great lakes late friday-saturday bringing the next
chances for gales.


lhz362-363-462-041630-
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-
330 am est wed feb 4 2026

.today...northwest winds 10 to 15 knots. waves 1 to 3 feet. 
.tonight...west winds 5 to 10 knots. waves 1 to 3 feet. 
.thursday...southwest winds 5 to 10 knots becoming south 15 to
20 knots. a chance of snow in the afternoon. waves 2 feet or less
building to 3 to 5 feet in the late morning and afternoon. 
.thursday night...south winds 15 to 20 knots. a chance of snow.
waves 4 to 6 feet. waves occasionally around 8 feet. 
.friday...southwest winds 10 to 15 knots becoming northwest 20 to
25 knots with gusts to 35 knot gales late in the morning...then
increasing to 35 knot gales with gusts to 40 knot gales late in
the afternoon becoming north to 30 knots with gusts to 35 knot
gales late in the evening. a chance of snow. heavy freezing
spray. waves 2 to 4 feet building to 10 to 14 feet. waves
occasionally around 18 feet. a gale warning may be needed. 
.saturday...northwest winds 20 to 25 knots with gusts to around
30 knots becoming north 10 to 15 knots. heavy freezing spray.
waves 8 to 12 feet subsiding to 3 to 5 feet . waves occasionally
around 15 feet. 
.sunday...southeast winds 10 to 15 knots veering to the southwest
by midnight. waves 2 to 4 feet. 

wave heights are for ice free areas.

$$

fzus63 kmkx 040900
glflm 
expires:202602041615;;063135

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
300 am cst wed feb 4 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 30.5 inches over far western wisconsin will 
slide southward into iowa today, merging with broad high pressure 
further west. mainly light winds are expected. lake effect snow 
showers remain possible over the southern half of the open waters
through this afternoon. winds will trend west southwesterly 
tonight into thursday, as low pressure around 29.5 inches moves 
from the canadian great plains to western hudson bay. snow is 
possible during the day on thursday, ahead of the developing low.

low pressure will deepen further to near 29.3 inches over central
hudson bay thursday night, ultimately progressing into northern 
quebec during the day on friday. the low will pull a cold front 
across the open waters in the process, resulting in a gusty 
northwest wind shift early friday morning. 

a period of northwesterly gales remains possible during the 
afternoon and evening hours friday, with trends being monitored 
for potential headlines in coming forecasts. areas of snow showers
will continue along and ahead of the passing front thursday night
into early friday morning. 

elevated wave heights will combine with arctic air settling in 
behind the cold front to support areas of moderate freezing spray 
friday afternoon into saturday morning. heavy freezing spray is 
possible, with the need for possible headlines being evaluated in 
coming forecasts. 

winds will briefly taper saturday afternoon, as high pressure
around 30.4 inches crosses lake michigan, prior to increasing 
once more saturday night, as the feature moves east.


lmz261-362-364-366-563-565-567-868-041615-
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-
300 am cst wed feb 4 2026

sheboygan wi to pentwater mi north...

.today...northwest winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.tonight...northwest winds 5 to 10 kt becoming southwest 10 to
15 kt. slight chance of snow in the evening. waves 1 to 3 ft. 
.thursday...southwest winds 10 to 20 kt increasing to 15 to
25 kt. snow likely in the morning, then chance of snow in the
afternoon. waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft. 
.thursday night...southwest winds 15 to 25 kt becoming west 10 to
20 kt. chance of snow in the evening, then snow likely overnight.
waves 4 to 6 ft occasionally to 8 ft. 
.friday...northwest gales to 35 kt becoming north. chance of snow
in the morning. freezing spray in the afternoon. waves 6 to 9 ft
occasionally to 12 ft building to 10 to 14 ft occasionally to
18 ft. 
.friday night...north gales to 40 kt diminishing to gales to
35 kt. heavy freezing spray. chance of snow. waves 10 to 14 ft
occasionally to 18 ft subsiding to 7 to 10 ft occasionally to
13 ft. 
.saturday...northwest winds to 30 kt becoming west 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.sunday...southeast winds 10 to 20 kt becoming south. waves 5 to
8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to
9 ft.  

$$

fzus63 kmkx 040900
glflm 
expires:202602041615;;063136

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
300 am cst wed feb 4 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 30.5 inches over far western wisconsin will 
slide southward into iowa today, merging with broad high pressure 
further west. mainly light winds are expected. lake effect snow 
showers remain possible over the southern half of the open waters
through this afternoon. winds will trend west southwesterly 
tonight into thursday, as low pressure around 29.5 inches moves 
from the canadian great plains to western hudson bay. snow is 
possible during the day on thursday, ahead of the developing low.

low pressure will deepen further to near 29.3 inches over central
hudson bay thursday night, ultimately progressing into northern 
quebec during the day on friday. the low will pull a cold front 
across the open waters in the process, resulting in a gusty 
northwest wind shift early friday morning. 

a period of northwesterly gales remains possible during the 
afternoon and evening hours friday, with trends being monitored 
for potential headlines in coming forecasts. areas of snow showers
will continue along and ahead of the passing front thursday night
into early friday morning. 

elevated wave heights will combine with arctic air settling in 
behind the cold front to support areas of moderate freezing spray 
friday afternoon into saturday morning. heavy freezing spray is 
possible, with the need for possible headlines being evaluated in 
coming forecasts. 

winds will briefly taper saturday afternoon, as high pressure
around 30.4 inches crosses lake michigan, prior to increasing 
once more saturday night, as the feature moves east.


lmz080-669-671-673-675-777-779-870-872-874-876-878-041615-
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-
300 am cst wed feb 4 2026

sheboygan wi to pentwater mi south...

.today...northeast winds 5 to 10 kt becoming northwest. chance of
snow this morning, then slight chance of snow this afternoon.
waves 1 to 3 ft. 
.tonight...northwest winds 5 to 10 kt becoming west 10 to 15 kt.
waves 1 to 3 ft. 
.thursday...southwest winds 10 to 20 kt. chance of snow. waves
2 to 4 ft building to 4 to 7 ft occasionally to 9 ft. 
.thursday night...southwest winds 15 to 25 kt becoming west.
chance of snow and light freezing drizzle overnight. waves 4 to
7 ft occasionally to 9 ft. 
.friday...northwest winds to 30 kt becoming north gales to 35 kt.
chance of snow in the morning. waves 7 to 10 ft occasionally to
13 ft building to 10 to 14 ft occasionally to 18 ft. 
.friday night...north gales to 40 kt diminishing to gales to
35 kt. freezing spray. waves 10 to 14 ft occasionally to 18 ft
subsiding to 8 to 12 ft occasionally to 16 ft. 
.saturday...north winds to 30 kt backing to southwest 10 to
20 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to
5 ft. 
.sunday...southeast winds 10 to 20 kt. waves 4 to 7 ft
occasionally to 9 ft.  

$$

fzus63 kmqt 040900
glfls 
expires:202602042100;;063169

open lake forecast for lake superior
national weather service marquette mi
400 am est wed feb 4 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...

high pressure currently centered over southeast mn builds to to 30.5 
inches by mid morning, maintaining 30.3-30.4in ridging over the 
lake. meanwhile, a 29.7 inch low will move into northern manitoba by 
this afternoon. this will bring a 29.8 inch trough over lake 
superior by thursday afternoon as the low moves into far northern 
ontario at 29.5 inches. the trough will deepen to 29.6 inches over 
eastern lake superior friday morning as low pressure over james bay 
deepens to 29.4 inches. the trough pushes east friday night with a 
30.4 inch high moving over the lake on saturday. the high will shift 
east on sunday in advance of another weak trough moving into the 
great lakes - but exact strength and  timing of this next feature 
remain uncertain.



lsz162-042100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est wed feb 4 2026 /300 am cst wed feb 4 2026/

.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...northwest winds 5 to 15 knots backing west. waves calm
to 2 feet. 
.tonight...west winds 5 to 15 knots becoming southwest 10 to
20 knots by midnight, then increasing to 15 to 25 knots late. a
slight chance of snow showers in the evening, then snow showers
likely after midnight. waves building to 1 to 3 feet. 
.thursday...southwest winds 10 to 20 knots veering west. waves
subsiding to calm to 2 feet. 
.thursday night...west winds 10 to 20 knots becoming northwest
15 to 25 knots after midnight. a chance of rain showers in the
evening. a chance of snow showers. waves building to 1 to 3 feet.
.friday...north winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.friday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots veering south. waves
calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 040900
glfls 
expires:202602042100;;063170

open lake forecast for lake superior
national weather service marquette mi
400 am est wed feb 4 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...

high pressure currently centered over southeast mn builds to to 30.5 
inches by mid morning, maintaining 30.3-30.4in ridging over the 
lake. meanwhile, a 29.7 inch low will move into northern manitoba by 
this afternoon. this will bring a 29.8 inch trough over lake 
superior by thursday afternoon as the low moves into far northern 
ontario at 29.5 inches. the trough will deepen to 29.6 inches over 
eastern lake superior friday morning as low pressure over james bay 
deepens to 29.4 inches. the trough pushes east friday night with a 
30.4 inch high moving over the lake on saturday. the high will shift 
east on sunday in advance of another weak trough moving into the 
great lakes - but exact strength and  timing of this next feature 
remain uncertain.



lsz263-042100-
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 am est wed feb 4 2026

.early this morning...northwest winds 5 to 15 knots. isolated
snow showers. waves calm to 2 feet. 
.today...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots backing southwest by
midnight, then increasing to 15 to 25 knots late. snow showers
likely after midnight. waves building to 2 to 4 feet. 
.thursday...southwest winds 15 to 25 knots veering west by late
morning, then diminishing to 10 to 20 knots by mid afternoon. a
slight chance of snow showers in the morning. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.thursday night...west winds 10 to 20 knots becoming northwest
20 to 30 knots after midnight. a chance of rain showers in the
evening. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday...north gales to 40 knots diminishing to 20 to 30 knots
in the afternoon. heavy freezing spray in the morning. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet. 
.friday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to 1 to 3 feet. 
.saturday...southeast winds 5 to 15 knots veering south. waves
subsiding to calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 040900
glfls 
expires:202602042100;;063171

open lake forecast for lake superior
national weather service marquette mi
400 am est wed feb 4 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...

high pressure currently centered over southeast mn builds to to 30.5 
inches by mid morning, maintaining 30.3-30.4in ridging over the 
lake. meanwhile, a 29.7 inch low will move into northern manitoba by 
this afternoon. this will bring a 29.8 inch trough over lake 
superior by thursday afternoon as the low moves into far northern 
ontario at 29.5 inches. the trough will deepen to 29.6 inches over 
eastern lake superior friday morning as low pressure over james bay 
deepens to 29.4 inches. the trough pushes east friday night with a 
30.4 inch high moving over the lake on saturday. the high will shift 
east on sunday in advance of another weak trough moving into the 
great lakes - but exact strength and  timing of this next feature 
remain uncertain.



lsz264-042100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am est wed feb 4 2026

.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots backing southwest by
midnight, then becoming south 10 to 20 knots late. a chance of
snow showers after midnight. waves building to 2 to 4 feet. 
.thursday...southwest winds 15 to 25 knots veering west by late
morning, then diminishing to 10 to 20 knots by mid afternoon. a
chance of snow showers in the morning. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.thursday night...west winds 10 to 20 knots becoming northwest
gales to 35 knots after midnight. a chance of snow showers.
freezing spray after midnight. waves building to 6 to 9 feet
occasionally to 11 feet. 
.friday...north gales to 45 knots. heavy freezing spray. a chance
of snow showers. waves building to 11 to 15 feet occasionally to
19 feet, then subsiding to 8 to 11 feet occasionally to 14 feet. 
.friday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight. heavy freezing spray. a chance of snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.saturday...north winds 5 to 15 knots veering south. waves
subsiding to calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots backing south. waves calm
to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 040900
glfls 
expires:202602042100;;063172

open lake forecast for lake superior
national weather service marquette mi
400 am est wed feb 4 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...

high pressure currently centered over southeast mn builds to to 30.5 
inches by mid morning, maintaining 30.3-30.4in ridging over the 
lake. meanwhile, a 29.7 inch low will move into northern manitoba by 
this afternoon. this will bring a 29.8 inch trough over lake 
superior by thursday afternoon as the low moves into far northern 
ontario at 29.5 inches. the trough will deepen to 29.6 inches over 
eastern lake superior friday morning as low pressure over james bay 
deepens to 29.4 inches. the trough pushes east friday night with a 
30.4 inch high moving over the lake on saturday. the high will shift 
east on sunday in advance of another weak trough moving into the 
great lakes - but exact strength and  timing of this next feature 
remain uncertain.



lsz265-042100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am est wed feb 4 2026

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet. 
.today...west winds 10 to 20 knots veering northwest by mid
afternoon. waves calm to 2 feet. 
.tonight...west winds 10 to 20 knots backing south late. a chance
of snow showers after midnight. waves calm to 2 feet. 
.thursday...south winds 15 to 25 knots veering west. a chance of
snow showers. waves calm to 2 feet. 
.thursday night...west winds 10 to 20 knots becoming northwest
gales to 35 knots after midnight. a chance of snow showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.friday...north gales to 45 knots. a chance of snow showers.
waves building to 11 to 15 feet occasionally to 19 feet, then
subsiding to 9 to 12 feet occasionally to 15 feet. 
.friday night...north gales to 35 knots becoming northwest 15 to
25 knots after midnight. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday...northwest winds 10 to 20 knots backing south. waves
subsiding to calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots backing south. waves
calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 040900
glfls 
expires:202602042100;;063173

open lake forecast for lake superior
national weather service marquette mi
400 am est wed feb 4 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...

high pressure currently centered over southeast mn builds to to 30.5 
inches by mid morning, maintaining 30.3-30.4in ridging over the 
lake. meanwhile, a 29.7 inch low will move into northern manitoba by 
this afternoon. this will bring a 29.8 inch trough over lake 
superior by thursday afternoon as the low moves into far northern 
ontario at 29.5 inches. the trough will deepen to 29.6 inches over 
eastern lake superior friday morning as low pressure over james bay 
deepens to 29.4 inches. the trough pushes east friday night with a 
30.4 inch high moving over the lake on saturday. the high will shift 
east on sunday in advance of another weak trough moving into the 
great lakes - but exact strength and  timing of this next feature 
remain uncertain.



lsz266-042100-
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 am est wed feb 4 2026

.early this morning...northwest winds 10 to 20 knots. isolated
snow showers. waves calm to 2 feet. 
.today...west winds 10 to 20 knots veering northwest by mid
afternoon. isolated snow showers in the morning. waves building
to 1 to 3 feet. 
.tonight...northwest winds 10 to 20 knots backing southwest by
midnight, then backing south late. a chance of snow showers after
midnight. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 
.thursday...south winds 15 to 25 knots veering southwest by late
morning, then becoming west 10 to 20 knots by mid afternoon. a
chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.thursday night...west winds 10 to 20 knots becoming northwest
gales to 35 knots after midnight. a chance of snow showers.
freezing spray after midnight. waves building to 6 to 9 feet
occasionally to 11 feet. 
.friday...north gales to 45 knots. heavy freezing spray. a chance
of snow showers in the morning. snow showers likely in the
afternoon. waves building to 15 to 20 feet occasionally to
25 feet. 
.friday night...north gales to 40 knots diminishing to 20 to
30 knots after midnight. heavy freezing spray. a chance of snow
showers. waves subsiding to 5 to 8 feet occasionally to 10 feet. 
.saturday...north winds 10 to 20 knots veering south. a chance of
snow showers. waves subsiding to 1 to 3 feet, then building to
2 to 4 feet. 
.sunday...south winds 15 to 25 knots. waves subsiding to 1 to
3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 040900
glfls 
expires:202602042100;;063174

open lake forecast for lake superior
national weather service marquette mi
400 am est wed feb 4 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...

high pressure currently centered over southeast mn builds to to 30.5 
inches by mid morning, maintaining 30.3-30.4in ridging over the 
lake. meanwhile, a 29.7 inch low will move into northern manitoba by 
this afternoon. this will bring a 29.8 inch trough over lake 
superior by thursday afternoon as the low moves into far northern 
ontario at 29.5 inches. the trough will deepen to 29.6 inches over 
eastern lake superior friday morning as low pressure over james bay 
deepens to 29.4 inches. the trough pushes east friday night with a 
30.4 inch high moving over the lake on saturday. the high will shift 
east on sunday in advance of another weak trough moving into the 
great lakes - but exact strength and  timing of this next feature 
remain uncertain.



lsz267-042100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am est wed feb 4 2026

.early this morning...southeast winds 5 to 15 knots. isolated
snow showers. waves calm to 2 feet. 
.today...south winds 5 to 15 knots veering west by late morning,
then becoming northwest 10 to 20 knots by mid afternoon. isolated
snow showers. waves building to 1 to 3 feet. 
.tonight...northwest winds 5 to 15 knots backing southwest by
midnight, then becoming south 10 to 20 knots late. a slight
chance of snow showers after midnight. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 
.thursday...south winds 15 to 25 knots increasing to 20 to
30 knots by late morning, then becoming southwest 15 to 25 knots
by mid afternoon. a chance of snow showers. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.thursday night...southwest winds 10 to 20 knots becoming west
20 to 30 knots after midnight. snow showers likely. waves
building to 4 to 7 feet occasionally to 9 feet. 
.friday...north gales to 40 knots. heavy freezing spray. a chance
of snow showers. waves building to 12 to 17 feet occasionally to
21 feet. 
.friday night...north gales to 40 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...north winds 10 to 20 knots veering southeast. waves
subsiding to 1 to 3 feet. 
.sunday...south winds 10 to 20 knots. waves 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$