fzus61 kbuf 041502
glflo 
expires:202602042200;;077146

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est wed feb 4 2026

for waters beyond five nautical miles of shore on lake ontario

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 30.0 inch low over the mid saint lawrence valley 
will track to the gulf of maine today. meanwhile, a 30.4 inch high 
will settle into the lower ohio valley through thursday. a strong 
cold front will then cross the lower great lakes later friday and 
friday night, with a 30.5 inch high building into the central great 
lakes and ohio valley saturday. the high pressure will then build 
east over the lake through sunday.


loz062-042200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est wed feb 4 2026

.this afternoon...northwest winds 10 to 15 knots becoming west. a
chance of snow showers. waves 1 to 3 feet. 
.tonight...northwest winds 5 to 15 knots. a chance of snow
showers from late evening on. waves 2 feet or less. 
.thursday...northwest winds 5 to 10 knots becoming southwest. a
chance of snow showers. waves 1 foot or less. 
.thursday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots. a chance of snow showers overnight. waves 1 to
3 feet building to 2 to 4 feet. 
.friday...southwest winds 15 to 25 knots becoming northwest and
increasing to 35 knot gales. snow showers. waves 2 to 4 feet
building to 10 to 13 feet. waves occasionally around 16 feet. 
.saturday...northwest winds to 30 knots diminishing to 15 to
25 knots. waves 8 to 11 feet subsiding to 3 to 6 feet. waves
occasionally around 14 feet. 
.sunday...north winds 10 to 15 knots becoming northwest. waves
1 to 3 feet. 

$$

fzus61 kbuf 041502
glflo 
expires:202602042200;;077147

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est wed feb 4 2026

for waters beyond five nautical miles of shore on lake ontario

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 30.0 inch low over the mid saint lawrence valley 
will track to the gulf of maine today. meanwhile, a 30.4 inch high 
will settle into the lower ohio valley through thursday. a strong 
cold front will then cross the lower great lakes later friday and 
friday night, with a 30.5 inch high building into the central great 
lakes and ohio valley saturday. the high pressure will then build 
east over the lake through sunday.


loz063>065-042200-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am est wed feb 4 2026

.this afternoon...northwest winds 10 to 15 knots becoming west. a
chance of snow showers. waves 1 to 3 feet. 
.tonight...west winds 5 to 15 knots becoming northwest. a chance
of snow showers early, then snow showers likely. a chance of snow
showers late. waves 1 to 3 feet. 
.thursday...northwest winds 10 knots or less becoming west. lake
effect snow showers likely. waves 2 feet or less. 
.thursday night...southwest winds 5 to 15 knots becoming south.
waves 2 feet or less. 
.friday...south winds 15 to 20 knots becoming northwest and
increasing to 35 knot gales. snow showers. waves 2 feet or less
building to 10 to 14 feet. waves occasionally around 18 feet. 
.saturday...northwest winds to 30 knots becoming north 15 to
25 knots. snow showers likely during the day. waves 9 to 12 feet
subsiding to 3 to 5 feet. waves occasionally around 15 feet. 
.sunday...north winds 10 to 15 knots. waves 1 to 3 feet. 

$$

fzus61 kcle 041423
glfle 
expires:202602042115;;075999

open lake forecast for lake erie
national weather service cleveland oh
923 am est wed feb 4 2026

for waters beyond five nautical miles of shore on lake erie

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 ridge averaging 30.30 inches builds east across the lake today
and persists through thursday. low pressure 29.50 inches moves 
eastward across canada and will lift a warm front in the vicinity 
of lake erie on friday. the low will drag a cold front east friday
evening before high pressure 30.30 inches returns this weekend.


lez162>164-042115-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
923 am est wed feb 4 2026

.rest of today...north winds 5 to 10 knots. a slight chance of
snow late this morning. the lake is mostly ice covered.
.tonight...northwest winds 10 knots or less becoming west. 
.thursday...southwest winds 5 to 15 knots. 
.thursday night...south winds 10 to 15 knots becoming southwest
15 to 20 knots. snow likely overnight. 
.friday...southwest winds 10 to 15 knots becoming northwest and
increasing to 15 to 25 knots. snow during the day. 
.saturday...northwest winds 15 to 20 knots becoming south 5 to
15 knots. a chance of snow saturday night. 
.sunday...south winds 5 to 10 knots. a chance of snow during the
day. 

waves omitted due to the lake being mostly ice covered.

$$

fzus61 kcle 041423
glfle 
expires:202602042115;;076000

open lake forecast for lake erie
national weather service cleveland oh
923 am est wed feb 4 2026

for waters beyond five nautical miles of shore on lake erie

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 ridge averaging 30.30 inches builds east across the lake today
and persists through thursday. low pressure 29.50 inches moves 
eastward across canada and will lift a warm front in the vicinity 
of lake erie on friday. the low will drag a cold front east friday
evening before high pressure 30.30 inches returns this weekend.


lez061-165>169-042115-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
923 am est wed feb 4 2026

.rest of today...northwest winds 5 to 10 knots. a slight chance
of snow late this morning. the lake is mostly ice covered.
.tonight...northwest winds 10 knots or less becoming west. 
.thursday...west winds 10 knots or less becoming southwest. 
.thursday night...southwest winds 5 to 15 knots increasing to
15 to 20 knots. a chance of snow overnight. 
.friday...southwest winds 15 to 20 knots becoming northwest and
increasing to 30 knots. snow during the day, then a chance of
snow friday night. 
.saturday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. 
.sunday...south winds 5 to 10 knots becoming west. a chance of
snow during the day. 

waves omitted due to the lake being mostly ice covered.

$$

fzus63 kdtx 041459
glfsc 
expires:202602042300;;076804

lake st clair forecast
national weather service detroit/pontiac mi
959 am est wed feb 4 2026

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
today into thursday. an clipper and arctic cold front cross the 
central great lakes late friday-saturday bringing the next chances
for gales.


lcz460-042300-
lake st clair-
959 am est wed feb 4 2026

.rest of today...north winds 5 to 10 knots. partly sunny.
.tonight...light and variable winds. partly cloudy.
.thursday...southwest winds 5 to 10 knots increasing to 10 to 15
knots early in the afternoon. mostly cloudy. a chance of light snow
early in the afternoon.
.thursday night...southwest winds 10 to 15 knots. mostly cloudy with
light snow likely.
.friday...southwest winds 10 to 15 knots becoming west 15 to 20
knots in the afternoon...then becoming northwest 20 to 25 knots with
gusts to 30 knots in the evening. light snow...then partly cloudy in
the evening.
.saturday...west winds 20 to 25 knots with gusts to 30 knots. mostly
clear.
.sunday...southeast winds 10 to 15 knots. partly cloudy. a chance of
light snow.

waves omitted due to ice coverage.

$$

fzus63 kdtx 041456
glflh 
expires:202602042300;;076723

open lake forecast for lake huron
national weather service detroit/pontiac mi
956 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
today into thursday. an clipper and arctic cold front cross the 
central great lakes late friday-saturday bringing the next chances
for gales.


lhz361-042300-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
956 am est wed feb 4 2026

...heavy freezing spray watch in effect from friday afternoon
through late friday night...

.rest of today...northwest winds 5 to 10 knots. 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...southwest winds 10 to 15 knots becoming northwest 20 to
25 knots with gusts to 30 knots late in the morning...then 
decreasing to 15 to 20 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 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then veering to the northwest
5 to 10 knots by midnight. 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 041456
glflh 
expires:202602042300;;076724

open lake forecast for lake huron
national weather service detroit/pontiac mi
956 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
today into thursday. an clipper and arctic cold front cross the 
central great lakes late friday-saturday bringing the next chances
for gales.


lhz362-363-462-042300-
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 wed feb 4 2026

...gale watch in effect from friday afternoon through late friday
night...
...heavy freezing spray watch in effect from friday afternoon
through late friday night...

.rest of today...northwest winds 5 to 10 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 20 to 25 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 12 to 16 feet. waves
occasionally around 20 feet. a gale warning may be needed. 
.saturday...northwest winds 20 to 25 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 kdtx 041456
glflh 
expires:202602042300;;076725

open lake forecast for lake huron
national weather service detroit/pontiac mi
956 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
today into thursday. an clipper and arctic cold front cross the 
central great lakes late friday-saturday bringing the next chances
for gales.


lhz463-464-042300-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
956 am est wed feb 4 2026

...gale watch in effect from friday afternoon through late friday
night...

.rest of today...northwest winds 5 to 10 knots. 
.tonight...northwest winds 5 to 10 knots backing to the west
after midnight. 
.thursday...southwest winds 5 to 10 knots becoming south 10 to
15 knots in the late morning and afternoon. a chance of snow in
the afternoon. 
.thursday night...south winds 15 to 20 knots. a chance of snow. 
.friday...southwest winds 10 to 15 knots veering to the west with
gusts to around 30 knots late in the morning...then becoming
northwest at 35 knot gales with gusts to 40 knot gales late in
the afternoon decreasing to 30 knots with gusts to 40 knot gales
late in the evening. snow likely. a gale warning may be needed. 
.saturday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
early afternoon...then decreasing to 10 to 15 knots early in the
evening backing to the west by midnight. 
.sunday...south winds 10 to 15 knots becoming southeast 5 to
10 knots early in the evening...then becoming south 10 to
15 knots by midnight. 

waves omitted due to ice coverage.

$$

fzus63 kmkx 041358
glflm 
expires:202602042215;;074915

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
758 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 30.5 inches crosses lake michigan, prior to increasing 
once more saturday night, as the feature moves east.


lmz261-362-364-366-563-565-567-868-042215-
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-
758 am cst wed feb 4 2026

sheboygan wi to pentwater mi north...

.rest of today...northwest winds 5 to 10 kt becoming west. waves
1 to 2 ft. 
.tonight...west winds 5 to 10 kt becoming southwest after
midnight, then increasing to 10 to 15 kt late. 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 3 to 5 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.  

wave forecast is for ice free areas

$$

fzus63 kmkx 041358
glflm 
expires:202602042215;;074916

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
758 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 30.5 inches crosses lake michigan, prior to increasing 
once more saturday night, as the feature moves east.


lmz080-669-671-673-675-777-779-870-872-874-876-878-042215-
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-
758 am cst wed feb 4 2026

sheboygan wi to pentwater mi south...

.rest of 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 southwest 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 5 to 8 ft
occasionally to 10 ft.  

wave forecast is for ice free areas

$$

fzus63 kmqt 041501
glfls 
expires:202602042100;;076934

open lake forecast for lake superior
national weather service marquette mi
1000 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-
1000 am est wed feb 4 2026 /900 am cst wed feb 4 2026/

.rest of today...west winds 5 to 15 knots. 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 2 to 4 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 041501
glfls 
expires:202602042100;;076935

open lake forecast for lake superior
national weather service marquette mi
1000 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-
1000 am est wed feb 4 2026

.rest of 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. a slight
chance of snow showers 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 041501
glfls 
expires:202602042100;;076936

open lake forecast for lake superior
national weather service marquette mi
1000 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-
1000 am est wed feb 4 2026

.rest of 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 041501
glfls 
expires:202602042100;;076937

open lake forecast for lake superior
national weather service marquette mi
1000 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-
1000 am est wed feb 4 2026

.rest of 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 5 feet occasionally to 7 feet. 
.friday...north gales to 45 knots. a chance of snow showers.
waves building to 10 to 14 feet occasionally to 18 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 041501
glfls 
expires:202602042100;;076938

open lake forecast for lake superior
national weather service marquette mi
1000 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-
1000 am est wed feb 4 2026

.rest of today...west winds 10 to 20 knots veering northwest by
mid afternoon. isolated snow showers late in the morning. waves
calm to 2 feet 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 041501
glfls 
expires:202602042100;;076939

open lake forecast for lake superior
national weather service marquette mi
1000 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-
1000 am est wed feb 4 2026

.rest of 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 calm to 2 feet 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 5 to 8 feet occasionally to 10 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.

$$