fzus61 kbuf 120205
glflo 
expires:202604120900;;219131

open lake forecast for lake ontario
national weather service buffalo ny
1005 pm edt sat apr 11 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 30.5 inch area of high pressure over the lake this 
evening, will slip towards new england later tonight and sunday and 
off the coast sunday night. a 29.4 inch low will then move 
northeastward from the upper midwest sunday to near james bay sunday 
night, while pushing an attendant warm front across the lake on 
sunday. this low will strengthen to 29.2 inches while continuing to 
trek northeast into northern quebec monday, with a trailing cold 
front stalling near the lake monday through tuesday. a 29.5 inch 
surface low advancing through the upper great lakes wednesday will 
lift this frontal boundary northward into canada. this 29.5 inch low 
will continue northeast into central quebec on thursday while 
dragging an attendant cold front across the lake. a 30.2 inch high 
will then build over the lower great lakes thursday night and friday.


loz062-120900-
lake ontario open waters from the niagara river to hamlin beach-
1005 pm edt sat apr 11 2026

.overnight...northwest winds less than 10 knots becoming
southeast. waves 1 foot or less. 
.sunday...southeast winds 5 to 10 knots becoming east. a chance
of rain showers late in the morning. rain showers in the
afternoon. waves 2 feet or less. 
.sunday night...southeast winds 10 to 15 knots becoming southwest
and increasing to 15 to 25 knots. showers likely. waves 1 to
2 feet building to 3 to 6 feet. 
.monday...southwest winds 20 to 25 knots. showers. waves 3 to
6 feet building to 4 to 7 feet. waves occasionally around 9 feet.
.monday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. a chance of showers. waves 3 to 6 feet subsiding
to 1 to 2 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. showers likely. waves 1 to 3 feet building to 2 to
4 feet. 
.wednesday...southwest winds 15 to 20 knots. showers likely
during the day, then showers likely with a chance of
thunderstorms wednesday night. waves 2 to 4 feet. 
.thursday...southwest winds 15 to 20 knots becoming west 5 to
15 knots. a chance of showers. waves 2 to 4 feet subsiding to
1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 120205
glflo 
expires:202604120900;;219132

open lake forecast for lake ontario
national weather service buffalo ny
1005 pm edt sat apr 11 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 30.5 inch area of high pressure over the lake this 
evening, will slip towards new england later tonight and sunday and 
off the coast sunday night. a 29.4 inch low will then move 
northeastward from the upper midwest sunday to near james bay sunday 
night, while pushing an attendant warm front across the lake on 
sunday. this low will strengthen to 29.2 inches while continuing to 
trek northeast into northern quebec monday, with a trailing cold 
front stalling near the lake monday through tuesday. a 29.5 inch 
surface low advancing through the upper great lakes wednesday will 
lift this frontal boundary northward into canada. this 29.5 inch low 
will continue northeast into central quebec on thursday while 
dragging an attendant cold front across the lake. a 30.2 inch high 
will then build over the lower great lakes thursday night and friday.


loz063>065-120900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1005 pm edt sat apr 11 2026

.overnight...northwest winds 10 knots or less becoming
southeast. waves 2 feet or less. 
.sunday...southeast winds 5 to 15 knots. rain showers in the
afternoon. waves 2 feet or less. 
.sunday night...southeast winds 15 to 25 knots becoming south.
showers likely. waves 2 to 4 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.monday...southwest winds 15 to 25 knots. showers. waves 3 to
6 feet building to 4 to 7 feet. waves occasionally around 9 feet.
.monday night...southwest winds 15 to 20 knots diminishing to
5 to 15 knots. showers in the evening, then a chance of showers
overnight. waves 4 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 9 feet. 
.tuesday...south winds 5 to 15 knots becoming southwest. showers
likely with a chance of thunderstorms. waves 1 to 3 feet. 
.wednesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. showers likely. waves 1 to 3 feet building to 2 to
4 feet. 
.thursday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of showers. waves 3 to 5 feet subsiding to
1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 120140
glfle 
expires:202604120815;;218533

open lake forecast for lake erie
national weather service cleveland oh
940 pm edt sat apr 11 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...
high pressure 30.50 inches over the central great lakes will 
shift east tonight. this will allow a warm front to lift across 
the lake sunday afternoon with a cold front approaching lake erie 
from the northwest on monday. the cold front will stall to the 
north of lake erie tuesday and wednesday. low pressure of 29.70 
inches will pass north of lake erie on thursday.


lez162-163-120815-
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-
940 pm edt sat apr 11 2026

.overnight...east winds 5 to 15 knots becoming southeast.
waves 2 feet or less. 
.sunday...southeast winds 10 to 15 knots becoming south 15 to
20 knots. a slight chance of showers early, then a chance of
showers late in the morning. a slight chance of showers early in
the afternoon. waves 1 to 2 feet. 
.sunday night...southwest winds 15 to 20 knots. a chance of
showers overnight. waves 1 to 3 feet. 
.monday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. showers likely. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.monday night...southwest winds 10 to 15 knots. a chance of
showers and thunderstorms in the evening, then showers likely
with a chance of thunderstorms overnight. waves 1 to 2 feet. 
.tuesday...southwest winds 15 to 20 knots. a chance of showers
and thunderstorms during the day, then showers likely with a
chance of thunderstorms tuesday night. waves 1 to 3 feet. 
.wednesday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. showers likely during the day, then showers likely with
a chance of thunderstorms wednesday night. waves 1 to 3 feet. 
.thursday...southwest winds 15 to 20 knots diminishing to 5 to
10 knots. a chance of showers. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 120140
glfle 
expires:202604120815;;218534

open lake forecast for lake erie
national weather service cleveland oh
940 pm edt sat apr 11 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...
high pressure 30.50 inches over the central great lakes will 
shift east tonight. this will allow a warm front to lift across 
the lake sunday afternoon with a cold front approaching lake erie 
from the northwest on monday. the cold front will stall to the 
north of lake erie tuesday and wednesday. low pressure of 29.70 
inches will pass north of lake erie on thursday.


lez164>167-120815-
the islands to vermilion oh beyond 5 nm 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-
940 pm edt sat apr 11 2026

.overnight...east winds 5 to 10 knots becoming southeast.
waves 1 foot or less. 
.sunday...southeast winds 5 to 15 knots becoming south. a slight
chance of showers from late morning on. waves 2 feet or less. 
.sunday night...south winds 15 to 20 knots becoming southwest. a
chance of showers overnight. waves 1 to 3 feet building to 3 to
5 feet. 
.monday...southwest winds 15 to 20 knots. showers likely. waves
3 to 6 feet. 
.monday night...southwest winds 10 to 15 knots. a chance of
showers and thunderstorms in the evening, then showers likely
with a chance of thunderstorms overnight. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. showers likely with a chance of thunderstorms. waves
1 to 3 feet building to 3 to 5 feet. 
.wednesday...southwest winds 15 to 20 knots. showers likely
during the day, then showers likely with a chance of
thunderstorms wednesday night. waves 3 to 5 feet subsiding to
1 to 3 feet. 
.thursday...southwest winds 15 to 20 knots diminishing to 5 to
10 knots. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 120140
glfle 
expires:202604120815;;218535

open lake forecast for lake erie
national weather service cleveland oh
940 pm edt sat apr 11 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...
high pressure 30.50 inches over the central great lakes will 
shift east tonight. this will allow a warm front to lift across 
the lake sunday afternoon with a cold front approaching lake erie 
from the northwest on monday. the cold front will stall to the 
north of lake erie tuesday and wednesday. low pressure of 29.70 
inches will pass north of lake erie on thursday.


lez061-168-169-120815-
ripley to buffalo ny extending from 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-
940 pm edt sat apr 11 2026

.overnight...light and variable winds. waves 1 foot or
less. 
.sunday...east winds 5 to 15 knots becoming south. a slight
chance of rain showers late in the morning. a chance of rain
showers in the afternoon. waves 2 feet or less. 
.sunday night...south winds 15 to 20 knots becoming southwest.
waves 1 to 3 feet building to 3 to 5 feet. 
.monday...southwest winds 15 to 20 knots. showers. waves 3 to
6 feet. 
.monday night...southwest winds 15 to 20 knots diminishing to
around 10 knots. a chance of showers. waves 3 to 5 feet subsiding
to 1 to 2 feet. 
.tuesday...southwest winds 10 to 15 knots. showers likely with a
chance of thunderstorms. waves 1 to 3 feet. 
.wednesday...southwest winds 10 to 15 knots. showers likely
during the day, then showers likely with a chance of
thunderstorms wednesday night. waves 1 to 3 feet. 
.thursday...southwest winds 10 knots or less. a chance of
showers. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 120143
glfsc 
expires:202604120945;;218633

lake st clair forecast
national weather service detroit/pontiac mi
943 pm edt sat apr 11 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...high pressure, 30.50 inches, tracks into the eastern
great lakes tonight. active weather returns sunday morning, with
intervals of showers, thunderstorms, and potential for gusty
winds through wednesday due to several passing disturbances.


lcz460-120945-
lake st clair-
943 pm edt sat apr 11 2026

.rest of tonight...southeast winds 5 to 10 knots. partly cloudy this
evening becoming mostly cloudy. waves 2 feet or less.
.sunday...southeast winds 10 to 15 knots. mostly cloudy. a chance of
light showers until late afternoon. waves 2 feet or less.
.sunday night...southwest winds 15 to 20 knots. mostly cloudy. light
showers likely after midnight. waves 1 to 3 feet.
.monday...southwest winds 15 to 20 knots. mostly cloudy. light
showers likely until late afternoon...then a chance of light showers
early in the afternoon. waves 1 to 3 feet.
.monday night...southwest winds 10 to 15 knots. partly cloudy with a
chance of showers and thunderstorms ...then cloudy with light
showers likely and a chance of thunderstorms after midnight. waves 2
feet or less.
.tuesday...southwest winds 10 to 15 knots increasing to 15 to 20
knots in the afternoon...then diminishing to 10 to 15 knots in the
evening. mostly cloudy with light showers likely and a chance of
thunderstorms. waves 1 to 3 feet.
.wednesday...southwest winds 15 to 20 knots. mostly cloudy with
light showers likely and a chance of thunderstorms. waves 1 to 3
feet.
.thursday...west winds 10 to 15 knots. partly cloudy. light showers
likely and a chance of thunderstorms. waves 2 feet or less.

$$

fzus63 kdtx 120141
glflh 
expires:202604120945;;218543

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt sat apr 11 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...high pressure, 30.50 inches, tracks into the eastern
great lakes tonight. active weather returns sunday morning, with
intervals of showers, thunderstorms, and potential for gusty
winds through wednesday due to several passing disturbances.


lhz363-462>464-120945-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
941 pm edt sat apr 11 2026

.rest of tonight...southeast winds 5 to 10 knots increasing to
10 to 15 knots after midnight. a chance of showers after
midnight. waves 1 to 3 feet. 
.sunday...southeast winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. showers. waves 3 to
5 feet building to 5 to 7 feet in the afternoon. waves
occasionally around 10 feet. 
.sunday night...south winds 15 to 20 knots becoming southwest
20 to 25 knots after midnight. showers likely in the evening...
then showers after midnight. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.monday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. a chance of showers. waves 4 to
6 feet. 
.monday night...north winds 5 to 10 knots veering to the east by
midnight...then increasing to 10 to 15 knots after midnight. a
chance of showers in the evening...then showers likely and a
chance of thunderstorms after midnight. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. waves
occasionally around 8 feet. 
.tuesday...south winds 10 to 15 knots backing to the northeast
late in the evening. showers likely and a chance of
thunderstorms. waves 2 to 4 feet building to 3 to 5 feet. 
.wednesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots . a chance of showers. waves 3 to 5 feet. 
.thursday...south winds 10 to 15 knots becoming north 5 to
10 knots . a chance of showers until afternoon. waves 2 to
4 feet. 


$$

fzus63 kdtx 120141
glflh 
expires:202604120945;;218542

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt sat apr 11 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...high pressure, 30.50 inches, tracks into the eastern
great lakes tonight. active weather returns sunday morning, with
intervals of showers, thunderstorms, and potential for gusty
winds through wednesday due to several passing disturbances.


lhz361-362-120945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
941 pm edt sat apr 11 2026

.rest of tonight...southeast winds 10 to 15 knots. a chance of
showers after midnight. waves 1 to 3 feet building to 2 to 4 feet
early in the morning. 
.sunday...southeast winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and early afternoon...then
decreasing to 15 to 20 knots late in the afternoon. showers.
waves 4 to 6 feet building to 6 to 9 feet in the afternoon. waves
occasionally around 12 feet. 
.sunday night...south winds 15 to 20 knots becoming southwest
20 to 25 knots with gusts to around 30 knots in the late evening
and overnight. showers. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.monday...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and afternoon. a chance of showers.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.monday night...north winds 5 to 10 knots becoming east 10 to
15 knots after midnight. showers likely after midnight. waves
2 to 4 feet subsiding to 1 to 3 feet in the late evening and
overnight. 
.tuesday...southeast winds 10 to 15 knots backing to the east
late in the evening. showers likely in the morning. a chance of
showers late in the morning...then showers likely late in the
evening. waves 3 to 5 feet. 
.wednesday...east winds 10 to 15 knots veering to the southwest .
showers likely early in the morning. a chance of showers. waves
3 to 5 feet. 
.thursday...southwest winds 10 to 15 knots. a chance of showers
early in the morning. waves 3 to 5 feet. 


$$

fzus63 kmkx 120227
glflm 
expires:202604120930;;219930

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
927 pm cdt sat apr 11 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 29.4 inches will track across the northern 
great plains to northeast minnesota from tonight into sunday 
evening, then develop toward hudson bay late sunday night. this 
will bring breezy south winds to all of lake michigan, but with 
the potential for gales over the north half late sunday afternoon 
into early monday morning. a gale watch is now in effect. 

winds will weaken later monday morning as the low quickly moves 
away and the trailing cold front stalls over northern lake 
michigan. then, passing low pressure systems along the stalled 
front will lead to intermittent showers and thunderstorms through 
the middle of the week. areas of dense fog will likely occur at
times due to a relatively mild and humid airmass over the cold
waters. 



lmz261-362-364-366-563-565-120930-
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-
927 pm cdt sat apr 11 2026

two rivers wi to manistee mi north...

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

.rest of tonight...southeast winds 10 to 15 kt increasing to
30 kt. scattered rain showers late this evening, then rain
showers and slight chance of thunderstorms overnight. patchy fog
overnight. waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft. 
.sunday...southeast winds to 30 kt becoming south. patchy fog in
the morning, then areas of fog in the afternoon. rain showers
with a chance of thunderstorms in the morning, then scattered
rain showers and slight chance of thunderstorms in the afternoon.
waves 5 to 8 ft occasionally to 10 ft. 
.sunday night...south gales to 35 kt becoming southwest to 30 kt.
scattered rain showers in the evening. areas of fog. waves 7 to
10 ft occasionally to 13 ft subsiding to 6 to 9 ft occasionally
to 12 ft. 
.monday...southwest winds 15 to 25 kt diminishing to 10 to 20 kt.
areas of dense fog in the morning. waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft. 
.monday night...east winds 10 to 15 kt becoming southeast 10 to
20 kt. chance of rain showers and thunderstorms in the evening,
then rain showers with a chance of thunderstorms overnight. waves
2 to 4 ft building to 3 to 5 ft. 
.tuesday...southwest winds 10 to 20 kt becoming south 10 to
15 kt. chance of rain showers and thunderstorms in the morning,
then chance of rain showers in the afternoon. waves 3 to 5 ft. 
.tuesday night...east winds 10 to 15 kt increasing to 10 to
20 kt. rain showers likely. waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft. 
.wednesday...south winds 15 to 25 kt diminishing to 10 to 20 kt.
chance of rain showers. waves 4 to 7 ft occasionally to 9 ft. 
.thursday...northeast winds 10 to 15 kt veering to southeast.
waves 2 to 4 ft.  

$$

fzus63 kmkx 120227
glflm 
expires:202604120930;;219931

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
927 pm cdt sat apr 11 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 29.4 inches will track across the northern 
great plains to northeast minnesota from tonight into sunday 
evening, then develop toward hudson bay late sunday night. this 
will bring breezy south winds to all of lake michigan, but with 
the potential for gales over the north half late sunday afternoon 
into early monday morning. a gale watch is now in effect. 

winds will weaken later monday morning as the low quickly moves 
away and the trailing cold front stalls over northern lake 
michigan. then, passing low pressure systems along the stalled 
front will lead to intermittent showers and thunderstorms through 
the middle of the week. areas of dense fog will likely occur at
times due to a relatively mild and humid airmass over the cold
waters. 



lmz080-567-669-671-673-675-777-779-868-870-872-874-876-878-120930-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from two rivers to sheboygan wi 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 pentwater to manistee mi 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-
927 pm cdt sat apr 11 2026

two rivers wi to manistee mi south...

.rest of tonight...southeast winds 10 to 20 kt increasing to
30 kt. isolated rain showers late this evening, then scattered
rain showers and slight chance of thunderstorms overnight. waves
1 to 3 ft building to 4 to 7 ft occasionally to 9 ft. 
.sunday...south winds to 30 kt. patchy fog. scattered rain
showers with a chance of thunderstorms in the morning, then
scattered rain showers and slight chance of thunderstorms in the
afternoon. waves 5 to 8 ft occasionally to 10 ft. 
.sunday night...southwest winds to 30 kt diminishing to 15 to
25 kt. rain showers with a chance of thunderstorms in the
evening. patchy fog. waves 6 to 9 ft occasionally to 12 ft. 
.monday...southwest winds 15 to 25 kt becoming south 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.monday night...south winds 10 to 20 kt increasing to 15 to
25 kt. rain showers likely with a chance of thunderstorms in the
evening, then chance of rain showers and thunderstorms overnight.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.tuesday...southwest winds 15 to 25 kt becoming south 10 to
20 kt. rain showers likely in the afternoon. waves 4 to 6 ft
occasionally to 8 ft. 
.tuesday night...south winds 10 to 20 kt becoming southwest 15 to
25 kt. rain showers with a chance of thunderstorms. waves 3 to
5 ft building to 4 to 7 ft occasionally to 9 ft.
.wednesday...southwest winds 15 to 25 kt becoming south. chance
of rain showers. waves 5 to 8 ft occasionally to 10 ft. 
.thursday...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. chance of rain showers. waves 3 to 5 ft.  

$$

fzus63 kmqt 120201
glfls 
expires:202604120800;;218940

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat apr 11 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...

30.4 inch high pressure continues its track through the lower great 
lakes tonight before moving off of the eastern seaboard into the 
atlantic on tomorrow. meanwhile, a 29.3 inch low developing on the 
lee of the northern rockies lifts northeast through northwestern 
ontario tomorrow evening before moving into far northern quebec by 
monday morning. another 29.5 inch low takes shape over the central 
plains on monday before lifting through the straits of mackinac at 
29.6 inches monday night through tuesday morning. remnant troughing 
of around 29.7 to 29.8 inches remains over the upper great lakes the 
rest of the day tuesday before another low from the central plains 
lifts through the upper great lakes at 29.6 inches wednesday night 
and thursday.



lsz266-120800-
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 pm edt sat apr 11 2026

.rest of tonight...south winds 15 to 25 knots increasing to 20 to
30 knots after midnight, then backing southeast late. a chance of
rain showers by midnight, then rain showers likely after
midnight. waves 2 to 4 feet building to 4 to 7 feet occasionally
to 9 feet. 
.sunday...southeast winds to 30 knots with a few gale force gusts
to 35 knots possible becoming south 20 to 30 knots in the
afternoon. a chance of rain showers through early afternoon. a
chance of thunderstorms. rain showers likely by mid afternoon.
waves building to 5 to 9 feet occasionally to 11 feet. 
.sunday night...south winds 15 to 25 knots veering west after
midnight. a slight chance of thunderstorms through midnight. a
chance of rain showers. waves subsiding to 2 to 4 feet. 
.monday...northwest winds 10 to 20 knots becoming north 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of rain showers through
midnight. a slight chance of thunderstorms. rain showers likely
after midnight. waves building to 1 to 3 feet. 
.tuesday...northeast winds 10 to 20 knots. a chance of rain
showers through early afternoon. waves building to 2 to 4 feet,
then subsiding to calm to 2 feet. 
.tuesday night...east winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of rain showers. waves building
to 3 to 5 feet occasionally to 7 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of rain
showers. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 1 to 3 feet. 
.thursday...south winds 15 to 25 knots becoming east 20 to
30 knots. a chance of rain showers. waves subsiding to 1 to
3 feet, then building to 5 to 8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202604120800;;218936

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat apr 11 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...

30.4 inch high pressure continues its track through the lower great 
lakes tonight before moving off of the eastern seaboard into the 
atlantic on tomorrow. meanwhile, a 29.3 inch low developing on the 
lee of the northern rockies lifts northeast through northwestern 
ontario tomorrow evening before moving into far northern quebec by 
monday morning. another 29.5 inch low takes shape over the central 
plains on monday before lifting through the straits of mackinac at 
29.6 inches monday night through tuesday morning. remnant troughing 
of around 29.7 to 29.8 inches remains over the upper great lakes the 
rest of the day tuesday before another low from the central plains 
lifts through the upper great lakes at 29.6 inches wednesday night 
and thursday.



lsz162-120800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt sat apr 11 2026 /900 pm cdt sat apr 11 2026/

.rest of tonight...east winds 10 to 20 knots. rain showers by
midnight. a slight chance of thunderstorms. a chance of rain
showers after midnight. waves calm to 2 feet building to 2 to
4 feet. 
.sunday...southeast winds 10 to 20 knots becoming northeast 5 to
15 knots late. a chance of rain showers. a chance of
thunderstorms by mid afternoon. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.sunday night...west winds 5 to 15 knots increasing to 10 to
20 knots after midnight, then diminishing to 5 to 15 knots late.
a slight chance of showers and thunderstorms through midnight.
waves subsiding to calm to 2 feet. 
.monday...northwest winds 5 to 15 knots veering east by mid
afternoon. a slight chance of rain showers by mid afternoon.
waves calm to 2 feet. 
.monday night...northeast winds 10 to 20 knots. rain showers
likely. waves building to 2 to 4 feet. 
.tuesday...northeast winds 10 to 20 knots. waves subsiding to
1 to 3 feet. 
.tuesday night...northeast winds 10 to 20 knots. a chance of rain
showers. waves building to 2 to 4 feet. 
.wednesday...northeast winds 5 to 15 knots. a chance of rain
showers. waves subsiding to calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots increasing to 15 to
25 knots. a chance of rain showers. waves building to 5 to 8 feet
occasionally to 10 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202604120800;;218941

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat apr 11 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...

30.4 inch high pressure continues its track through the lower great 
lakes tonight before moving off of the eastern seaboard into the 
atlantic on tomorrow. meanwhile, a 29.3 inch low developing on the 
lee of the northern rockies lifts northeast through northwestern 
ontario tomorrow evening before moving into far northern quebec by 
monday morning. another 29.5 inch low takes shape over the central 
plains on monday before lifting through the straits of mackinac at 
29.6 inches monday night through tuesday morning. remnant troughing 
of around 29.7 to 29.8 inches remains over the upper great lakes the 
rest of the day tuesday before another low from the central plains 
lifts through the upper great lakes at 29.6 inches wednesday night 
and thursday.



lsz267-120800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt sat apr 11 2026

.rest of tonight...southeast winds 10 to 20 knots becoming south
15 to 25 knots after midnight, then becoming southeast 20 to
30 knots late. a chance of rain showers by midnight, then rain
showers likely after midnight. waves calm to 2 feet building to
3 to 5 feet occasionally to 7 feet. 
.sunday...southeast winds to 30 knots with a few gale force gusts
to 35 knots possible diminishing to 20 to 30 knots late. a chance
of rain showers through early afternoon, then rain showers likely
and a chance of thunderstorms by mid afternoon. waves building to
5 to 8 feet occasionally to 10 feet, then subsiding to 3 to
6 feet occasionally to 8 feet. 
.sunday night...south winds 20 to 30 knots veering southwest
after midnight, then becoming west 10 to 20 knots late. rain
showers likely and a chance of thunderstorms through midnight,
then a chance of rain showers after midnight. waves subsiding to
2 to 4 feet. 
.monday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of rain showers through
midnight. a slight chance of thunderstorms. rain showers likely
after midnight. waves building to 1 to 3 feet. 
.tuesday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. a chance of rain showers through early
afternoon. waves subsiding to calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of rain showers. waves building
to 2 to 4 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of rain
showers. waves subsiding to 1 to 3 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.thursday...east winds 10 to 20 knots increasing to 15 to
25 knots. a chance of rain showers. waves subsiding to calm to
2 feet, then building to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202604120800;;218937

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat apr 11 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...

30.4 inch high pressure continues its track through the lower great 
lakes tonight before moving off of the eastern seaboard into the 
atlantic on tomorrow. meanwhile, a 29.3 inch low developing on the 
lee of the northern rockies lifts northeast through northwestern 
ontario tomorrow evening before moving into far northern quebec by 
monday morning. another 29.5 inch low takes shape over the central 
plains on monday before lifting through the straits of mackinac at 
29.6 inches monday night through tuesday morning. remnant troughing 
of around 29.7 to 29.8 inches remains over the upper great lakes the 
rest of the day tuesday before another low from the central plains 
lifts through the upper great lakes at 29.6 inches wednesday night 
and thursday.



lsz263-120800-
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 pm edt sat apr 11 2026

.rest of tonight...southeast winds 5 to 15 knots increasing to
10 to 20 knots after midnight. rain showers and a slight chance
of thunderstorms. waves 1 to 3 feet building to 3 to 5 feet
occasionally to 7 feet. 
.sunday...southeast winds 10 to 20 knots becoming south 5 to
15 knots in the afternoon. a chance of rain showers. a chance of
thunderstorms by mid afternoon. waves subsiding to 2 to 4 feet. 
.sunday night...west winds 5 to 15 knots. a chance of rain
showers and a slight chance of thunderstorms through midnight.
waves subsiding to calm to 2 feet. 
.monday...northwest winds 5 to 15 knots veering northeast by mid
afternoon. waves calm to 2 feet. 
.monday night...east winds 10 to 20 knots backing northeast after
midnight. a slight chance of thunderstorms through midnight. rain
showers likely. waves building to 2 to 4 feet. 
.tuesday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...northeast winds 5 to 15 knots becoming east
10 to 20 knots after midnight. a chance of rain showers. waves
building to 2 to 4 feet. 
.wednesday...east winds 10 to 20 knots becoming south 5 to
15 knots. a chance of rain showers. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.thursday...northeast winds 5 to 15 knots increasing to 15 to
25 knots. a chance of rain showers. waves subsiding to calm to
2 feet, then building to 5 to 8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202604120800;;218938

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat apr 11 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...

30.4 inch high pressure continues its track through the lower great 
lakes tonight before moving off of the eastern seaboard into the 
atlantic on tomorrow. meanwhile, a 29.3 inch low developing on the 
lee of the northern rockies lifts northeast through northwestern 
ontario tomorrow evening before moving into far northern quebec by 
monday morning. another 29.5 inch low takes shape over the central 
plains on monday before lifting through the straits of mackinac at 
29.6 inches monday night through tuesday morning. remnant troughing 
of around 29.7 to 29.8 inches remains over the upper great lakes the 
rest of the day tuesday before another low from the central plains 
lifts through the upper great lakes at 29.6 inches wednesday night 
and thursday.



lsz264-120800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt sat apr 11 2026

.rest of tonight...southeast winds 10 to 20 knots veering south
after midnight, then becoming southeast 20 to 30 knots late. a
chance of rain showers by midnight, then rain showers likely and
a slight chance of thunderstorms after midnight. waves 2 to
4 feet building to 4 to 7 feet occasionally to 9 feet. 
.sunday...southeast winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon, then becoming south 10 to 20 knots
late. a chance of rain showers. a chance of thunderstorms by mid
afternoon. waves building to 6 to 9 feet occasionally to 11 feet,
then subsiding to 4 to 7 feet occasionally to 9 feet. 
.sunday night...south winds 10 to 20 knots becoming west 5 to
15 knots after midnight. a chance of rain showers and a slight
chance of thunderstorms through midnight. waves subsiding to 1 to
3 feet. 
.monday...northwest winds 5 to 15 knots veering north by mid
afternoon. waves subsiding to calm to 2 feet. 
.monday night...east winds 5 to 15 knots. a chance of rain
showers through midnight, then rain showers likely after
midnight. waves building to 1 to 3 feet. 
.tuesday...northeast winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.tuesday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of rain showers. waves building
to 2 to 4 feet. 
.wednesday...east winds 10 to 20 knots becoming south 5 to
15 knots. a chance of rain showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to calm to 2 feet. 
.thursday...south winds 5 to 15 knots becoming northeast 15 to
25 knots. a chance of rain showers. a chance of snow showers.
waves subsiding to calm to 2 feet, then building to 5 to 8 feet
occasionally to 10 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202604120800;;218939

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat apr 11 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...

30.4 inch high pressure continues its track through the lower great 
lakes tonight before moving off of the eastern seaboard into the 
atlantic on tomorrow. meanwhile, a 29.3 inch low developing on the 
lee of the northern rockies lifts northeast through northwestern 
ontario tomorrow evening before moving into far northern quebec by 
monday morning. another 29.5 inch low takes shape over the central 
plains on monday before lifting through the straits of mackinac at 
29.6 inches monday night through tuesday morning. remnant troughing 
of around 29.7 to 29.8 inches remains over the upper great lakes the 
rest of the day tuesday before another low from the central plains 
lifts through the upper great lakes at 29.6 inches wednesday night 
and thursday.



lsz265-120800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt sat apr 11 2026

.rest of tonight...south winds 15 to 25 knots backing southeast
after midnight, then increasing to 20 to 30 knots late. rain
showers. a slight chance of thunderstorms after midnight. waves
2 to 4 feet building to 3 to 6 feet occasionally to 8 feet. 
.sunday...southeast winds 15 to 25 knots veering south late. a
chance of rain showers through early afternoon. a chance of
thunderstorms. rain showers likely by mid afternoon. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 5 feet occasionally to 7 feet. 
.sunday night...south winds 15 to 25 knots veering west after
midnight, then diminishing to 10 to 20 knots late. a slight
chance of thunderstorms through midnight. a chance of rain
showers. waves subsiding to calm to 2 feet. 
.monday...northwest winds 10 to 20 knots becoming north 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots becoming northeast 10 to
20 knots after midnight. rain showers likely and a slight chance
of thunderstorms. waves building to 1 to 3 feet. 
.tuesday...northeast winds 10 to 20 knots. a chance of rain
showers through early afternoon. waves subsiding to calm to
2 feet. 
.tuesday night...east winds 10 to 20 knots. a chance of rain
showers. waves building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...east winds 15 to 25 knots becoming southwest 10 to
20 knots. a chance of rain showers. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.thursday...east winds 10 to 20 knots increasing to 15 to
25 knots. a chance of rain showers. waves subsiding to calm to
2 feet, then building to 5 to 8 feet occasionally to 10 feet. 

$$