fzus61 kbuf 170202
glflo 
expires:202609170900;;576102

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt wed sep 16 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 weak cold front will settle south of the lake this 
evening, then stall just south of the lake thursday. a 30.4 inch 
high will then build from northwest ontario province thursday night 
to southern quebec by saturday morning before moving off the new 
england coast by sunday while weakening to 30.2 inches. another 30.4 
inch high will then build from northwest ontario province sunday to 
western quebec monday. meanwhile, a 29.8 inch low will move into the 
lower ohio valley by monday.


loz062-170900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt wed sep 16 2026

.overnight...north winds 5 to 10 knots becoming northeast.
waves 2 feet or less. 
.thursday...northeast winds 10 knots or less becoming northwest.
a chance of showers early. waves 1 to 2 feet. 
.thursday night...west winds 5 to 10 knots becoming northwest.
waves 1 to 2 feet. 
.friday...northwest winds 5 to 10 knots becoming north. waves
2 feet or less. 
.friday night...north winds 5 to 15 knots becoming east. waves
2 feet or less building to 2 to 3 feet. 
.saturday...east winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers during the day, then showers likely
saturday night. waves 2 to 3 feet. 
.sunday...northeast winds 15 to 20 knots. showers likely during
the day. waves 2 to 4 feet building to 3 to 6 feet. 
.monday...northeast winds 15 to 25 knots becoming east. a chance
of showers monday night. waves 4 to 7 feet. waves occasionally
around 9 feet. 

$$

fzus61 kbuf 170202
glflo 
expires:202609170900;;576103

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt wed sep 16 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 weak cold front will settle south of the lake this 
evening, then stall just south of the lake thursday. a 30.4 inch 
high will then build from northwest ontario province thursday night 
to southern quebec by saturday morning before moving off the new 
england coast by sunday while weakening to 30.2 inches. another 30.4 
inch high will then build from northwest ontario province sunday to 
western quebec monday. meanwhile, a 29.8 inch low will move into the 
lower ohio valley by monday.


loz063>065-170900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt wed sep 16 2026

.overnight...west winds 5 to 10 knots becoming southeast.
waves 2 feet or less. 
.thursday...southeast winds 5 to 10 knots becoming north. a
chance of showers in the morning. waves 2 feet or less. 
.thursday night...northwest winds 5 to 15 knots. waves 2 feet or
less. 
.friday...northwest winds 10 to 15 knots becoming north. waves
1 to 3 feet. 
.friday night...north winds 10 to 15 knots becoming east. waves
1 to 3 feet. 
.saturday...east winds 5 to 15 knots becoming southeast. showers
likely saturday night. waves 1 to 3 feet. 
.sunday...northeast winds 15 to 20 knots. showers likely during
the day. waves 2 to 4 feet building to 3 to 5 feet. 
.monday...northeast winds 15 to 25 knots becoming east. a chance
of showers monday night. waves 3 to 5 feet. 

$$

fzus61 kcle 170119
glfle 
expires:202609170815;;575139

open lake forecast for lake erie
national weather service cleveland oh
919 pm edt wed sep 16 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 stationary front will slowly sag south tonight into thursday,
followed by high pressure 30.20 inches for friday. low pressure
29.90 inches will track east across the great lakes on saturday 
and extend a cold front through the area on sunday. a trough
averaging 30.00 inches will linger behind the front into early 
next week.


lez162-163-170815-
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-
919 pm edt wed sep 16 2026

.rest of tonight...northeast winds 5 to 10 knots. a chance of
showers with a slight chance of thunderstorms. waves 1 foot or
less. 
.thursday...north winds 10 knots or less. a chance of showers
with a slight chance of thunderstorms in the morning. waves
1 foot or less. 
.thursday night...north winds 5 to 15 knots becoming northeast.
waves 2 feet or less. 
.friday...northeast winds 10 to 15 knots. waves 1 to 3 feet. 
.friday night...northeast winds 10 to 15 knots becoming east.
waves 2 feet or less. 
.saturday...southeast winds 10 to 15 knots becoming southwest.
showers with a chance of thunderstorms. waves 1 to 2 feet. 
.sunday...northwest winds 15 to 25 knots becoming northeast. a
chance of showers during the day. waves 1 to 3 feet building to
3 to 6 feet. 
.monday...east winds to 30 knots becoming northeast 15 to
25 knots. a chance of showers. waves 3 to 6 feet building to 4 to
7 feet, then subsiding to 3 to 6 feet. waves occasionally around
9 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 170119
glfle 
expires:202609170815;;575141

open lake forecast for lake erie
national weather service cleveland oh
919 pm edt wed sep 16 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 stationary front will slowly sag south tonight into thursday,
followed by high pressure 30.20 inches for friday. low pressure
29.90 inches will track east across the great lakes on saturday 
and extend a cold front through the area on sunday. a trough
averaging 30.00 inches will linger behind the front into early 
next week.


lez061-168-169-170815-
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-
919 pm edt wed sep 16 2026

.rest of tonight...northeast winds 5 to 10 knots. a chance of
showers late this evening, then a chance of showers with a slight
chance of thunderstorms after midnight. showers likely with a
slight chance of thunderstorms late. waves 2 feet or less. 
.thursday...northeast winds 5 to 10 knots becoming north. a
chance of showers with a slight chance of thunderstorms in the
morning. waves 2 feet or less. 
.thursday night...north winds 10 knots or less increasing to
10 to 15 knots. waves 2 feet or less. 
.friday...northeast winds 5 to 15 knots. waves 1 to 3 feet. 
.friday night...northeast winds 5 to 15 knots becoming east.
waves 2 feet or less. 
.saturday...east winds 10 to 15 knots becoming south. a chance of
showers during the day, then showers saturday night. waves 1 to
3 feet. 
.sunday...north winds 15 to 20 knots becoming east. showers
likely during the day. waves 2 to 4 feet building to 3 to 6 feet.
.monday...east winds 15 to 25 knots. a chance of showers monday
night. waves 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 170119
glfle 
expires:202609170815;;575140

open lake forecast for lake erie
national weather service cleveland oh
919 pm edt wed sep 16 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 stationary front will slowly sag south tonight into thursday,
followed by high pressure 30.20 inches for friday. low pressure
29.90 inches will track east across the great lakes on saturday 
and extend a cold front through the area on sunday. a trough
averaging 30.00 inches will linger behind the front into early 
next week.


lez164>167-170815-
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-
919 pm edt wed sep 16 2026

.rest of tonight...northeast winds 5 to 10 knots becoming east. a
chance of showers with a slight chance of thunderstorms. waves
1 foot or less. 
.thursday...northeast winds 5 to 10 knots becoming north. a
chance of showers with a slight chance of thunderstorms in the
morning. waves 1 foot or less. 
.thursday night...north winds 5 to 15 knots. waves 2 feet or less
building to 2 to 3 feet. 
.friday...northeast winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday night...northeast winds 5 to 15 knots becoming east.
waves 1 to 3 feet. 
.saturday...east winds 10 to 15 knots becoming south. a chance of
showers during the day, then showers with a chance of
thunderstorms saturday night. waves 1 to 3 feet. 
.sunday...northwest winds 15 to 25 knots becoming east. showers
likely during the day. waves 3 to 6 feet building to 4 to 7 feet.
waves occasionally around 9 feet. 
.monday...northeast winds to 30 knots becoming east 15 to
25 knots. a chance of showers. waves 5 to 8 feet. waves
occasionally around 10 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 170140
glfsc 
expires:202609170945;;575590

lake st clair forecast
national weather service detroit/pontiac mi
940 pm edt wed sep 16 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...southern edge of northern ontario high pressure, 30.30
inches, slides across the central great lakes through thursday. a
secondary cold front passes southward through the region thursday
night into early friday before plains low pressure arrives this
weekend.


lcz460-170945-
lake st clair-
940 pm edt wed sep 16 2026

.rest of tonight...northeast winds 10 to 15 knots diminishing to 5
to 10 knots after midnight. cloudy. a chance of light showers. waves
2 feet or less.
.thursday...north winds 5 to 10 knots. cloudy. a chance of light
showers early in the morning. a chance of light showers in the
afternoon. waves 2 feet or less.
.thursday night...north winds 5 to 10 knots. mostly cloudy early in
the evening becoming partly cloudy. a chance of light showers early
in the evening. waves 2 feet or less.
.friday...north winds 10 to 15 knots becoming northeast 5 to 10
knots in the late morning and early afternoon...then increasing to
10 to 15 knots early in the afternoon. mostly sunny. waves 2 feet or
less.
.friday night...northeast winds 10 to 15 knots. partly cloudy
becoming mostly cloudy. waves 2 feet or less.
.saturday...east winds 10 to 15 knots. showers likely in the
morning...then showers and a chance of thunderstorms in the
afternoon and evening. waves 2 feet or less.
.sunday...northeast winds 15 to 20 knots. mostly cloudy with
showers. waves 1 to 3 feet.
.monday...northeast winds 20 to 25 knots. mostly cloudy with a
chance of showers. waves 1 to 3 feet.

$$

fzus63 kdtx 170139
glflh 
expires:202609170945;;575587

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 pm edt wed sep 16 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...southern edge of northern ontario high pressure, 30.30
inches, slides across the central great lakes through thursday. a
secondary cold front passes southward through the region thursday
night into early friday before plains low pressure arrives this
weekend.


lhz362-363-170945-
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-
939 pm edt wed sep 16 2026

.rest of tonight...light and variable winds. waves 2 feet or
less. 
.thursday...north winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.thursday night...light and variable winds becoming northwest
5 to 10 knots by midnight...then increasing to 10 to 15 knots
after midnight. waves 2 feet or less building to 2 to 4 feet
after midnight. 
.friday...north winds 10 to 15 knots becoming northeast 5 to
10 knots early in the afternoon. waves 2 to 4 feet. 
.friday night...northeast winds 5 to 10 knots veering to the east
after midnight. a chance of showers after midnight. waves 2 feet
or less. 
.saturday...east winds 10 to 15 knots. showers likely...then a
chance of showers late in the evening. waves 1 to 3 feet building
to 2 to 4 feet. 
.sunday...northeast winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and early afternoon...then
decreasing to 10 to 15 knots early in the evening increasing to
15 to 20 knots by midnight. a chance of showers early in the
morning. waves 3 to 5 feet. 
.monday...east winds 15 to 20 knots. waves 3 to 5 feet. 


$$

fzus63 kdtx 170139
glflh 
expires:202609170945;;575588

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 pm edt wed sep 16 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...southern edge of northern ontario high pressure, 30.30
inches, slides across the central great lakes through thursday. a
secondary cold front passes southward through the region thursday
night into early friday before plains low pressure arrives this
weekend.


lhz462>464-170945-
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-
939 pm edt wed sep 16 2026

.rest of tonight...northeast winds 5 to 10 knots. waves 2 feet or
less. 
.thursday...north winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...north winds 5 to 10 knots increasing to 10 to
15 knots after midnight. waves 1 to 3 feet. 
.friday...north winds 10 to 15 knots. waves 2 to 4 feet. 
.friday night...northeast winds 10 to 15 knots veering to the
east after midnight. a chance of showers after midnight. waves
1 to 3 feet. 
.saturday...east winds 10 to 15 knots becoming southeast 15 to
20 knots late in the morning...then becoming east 10 to 15 knots
late in the evening. a chance of showers in the morning...then
showers late in the morning. rain showers likely late in the
evening. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...northeast winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers early in the morning. waves 3 to
5 feet. 
.monday...east winds 15 to 20 knots decreasing to 10 to 15 knots
until early evening...then increasing to 15 to 20 knots by
midnight. waves 3 to 5 feet. 


$$

fzus63 kdtx 170139
glflh 
expires:202609170945;;575586

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 pm edt wed sep 16 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...southern edge of northern ontario high pressure, 30.30
inches, slides across the central great lakes through thursday. a
secondary cold front passes southward through the region thursday
night into early friday before plains low pressure arrives this
weekend.


lhz361-170945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
939 pm edt wed sep 16 2026

.rest of tonight...light and variable winds. waves 2 feet or
less. 
.thursday...light and variable winds. waves 2 feet or less. 
.thursday night...west winds 5 to 10 knots becoming northwest
10 to 15 knots in the late evening and overnight. waves 2 feet or
less. 
.friday...north winds 10 to 15 knots becoming light and variable.
waves 2 feet or less. 
.friday night...light and variable winds becoming southeast 5 to
10 knots in the late evening and overnight. a chance of showers
after midnight. waves 2 feet or less. 
.saturday...southeast winds 10 to 15 knots becoming east 5 to
10 knots late in the evening. showers likely...then a chance of
showers late in the afternoon. waves 1 to 3 feet. 
.sunday...northeast winds 10 to 15 knots increasing to northeast
15 to 20 knots with gusts to around 30 knots by midnight. waves
2 feet or less building to 3 to 5 feet by midnight. 
.monday...east winds 15 to 20 knots with gusts to around 30 knots
decreasing to 10 to 15 knots . waves 3 to 5 feet. 


$$

fzus63 kmkx 170137
glflm 
expires:202609170915;;575451

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
837 pm cdt wed sep 16 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...

30.4 inch high pressure is centered near the ontario-quebec 
border late this evening, and will continue east through the day 
tomorrow. progression of the high will maintain east-northeast 
winds across the open waters through tomorrow afternoon. 
occasional periods of showers and thunderstorms will continue into
thursday, with severe weather not expected.

a new area of 30.4 inch high pressure will shift from the 
canadian great plains into ontario thursday night into friday 
morning, maintaining east-northeast winds across lake michigan. 
29.9 inch low pressure will develop near the missouri river 
friday afternoon, moving over or just south of waters during the 
day on saturday. winds will veer east-southeasterly ahead of the 
low, becoming gusty at points. some gusts could approach gale 
thresholds, particularly on friday night and saturday morning. 
whether borderline gales will be widespread enough to warrant gale
warnings remains uncertain at this time, with trends being 
monitored through the end of the week. areas of widespread showers
& storms will accompany the approaching/passing area of low 
pressure friday night through at least saturday night, with 
widespread severe weather not expected at this time. winds will 
trend northeasterly as the low slowly moves into the ohio river 
valley sunday into the beginning of next week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-170915-
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-
837 pm cdt wed sep 16 2026

sheboygan wi to pentwater mi south...

.rest of tonight...northeast winds 10 to 15 kt becoming east late
this evening, then becoming east 10 to 15 kt after midnight
diminishing to 5 to 10 kt late. slight chance of showers through
early evening, then chance of showers and slight chance of
thunderstorms overnight. waves 1 to 3 ft. 
.thursday...northeast winds 5 to 10 kt. slight chance of showers
and thunderstorms in the morning. waves 1 to 2 ft. 
.thursday night...northeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.friday...east winds 10 to 20 kt diminishing to 10 to 15 kt.
chance of showers in the afternoon. waves 2 to 4 ft. 
.friday night...east winds 15 to 25 kt becoming southeast to
30 kt. chance of showers in the evening, then showers overnight.
waves 4 to 6 ft occasionally to 8 ft building to 7 to 10 ft
occasionally to 13 ft. 
.saturday...southeast winds to 30 kt. showers in the morning,
then showers with a chance of thunderstorms in the afternoon.
waves 8 to 11 ft occasionally to 14 ft. 
.saturday night...northeast winds 15 to 25 kt becoming north.
chance of showers and thunderstorms. waves 5 to 8 ft occasionally
to 10 ft. 
.sunday...northeast winds to 30 kt. chance of showers. waves 6 to
9 ft occasionally to 12 ft. 
.monday...east winds to 30 kt. chance of showers. waves 5 to 8 ft
occasionally to 10 ft.  

$$

fzus63 kmkx 170137
glflm 
expires:202609170915;;575450

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
837 pm cdt wed sep 16 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...

30.4 inch high pressure is centered near the ontario-quebec 
border late this evening, and will continue east through the day 
tomorrow. progression of the high will maintain east-northeast 
winds across the open waters through tomorrow afternoon. 
occasional periods of showers and thunderstorms will continue into
thursday, with severe weather not expected.

a new area of 30.4 inch high pressure will shift from the 
canadian great plains into ontario thursday night into friday 
morning, maintaining east-northeast winds across lake michigan. 
29.9 inch low pressure will develop near the missouri river 
friday afternoon, moving over or just south of waters during the 
day on saturday. winds will veer east-southeasterly ahead of the 
low, becoming gusty at points. some gusts could approach gale 
thresholds, particularly on friday night and saturday morning. 
whether borderline gales will be widespread enough to warrant gale
warnings remains uncertain at this time, with trends being 
monitored through the end of the week. areas of widespread showers
& storms will accompany the approaching/passing area of low 
pressure friday night through at least saturday night, with 
widespread severe weather not expected at this time. winds will 
trend northeasterly as the low slowly moves into the ohio river 
valley sunday into the beginning of next week.


lmz261-362-364-366-563-565-567-868-170915-
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-
837 pm cdt wed sep 16 2026

sheboygan wi to pentwater mi north...

.rest of tonight...northeast winds 10 to 15 kt becoming east.
chance of showers overnight. waves 1 to 2 ft. 
.thursday...east winds 5 to 10 kt backing to northwest early in
the afternoon, then becoming north late. slight chance of showers
in the morning. waves 1 to 2 ft. 
.thursday night...north winds 10 to 15 kt becoming northeast
10 to 20 kt. waves 1 to 3 ft. 
.friday...northeast winds 10 to 20 kt becoming east 10 to 15 kt.
chance of showers in the afternoon. waves 2 to 4 ft. 
.friday night...east winds 15 to 25 kt becoming southeast to
30 kt. chance of showers in the evening, then showers overnight.
waves 3 to 5 ft building to 6 to 9 ft occasionally to 12 ft. 
.saturday...southeast winds to 30 kt becoming east. showers in
the morning, then chance of showers in the afternoon. waves 7 to
10 ft occasionally to 13 ft. 
.saturday night...northeast winds 15 to 25 kt. chance of showers.
waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.sunday...northeast winds to 30 kt. waves 5 to 8 ft occasionally
to 10 ft. 
.monday...east winds 15 to 25 kt. waves 4 to 6 ft occasionally to
8 ft.  

$$

fzus63 kmqt 170201
glfls 
expires:202609170800;;576072

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt wed sep 16 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...

this evening an expansive area of high pressure was over the region 
with 30.3 inch ridging over lake superior. one high pressure center, 
at 30.4 inches, was over quebec and the other, at 30.4 inches, was 
over southern manitoba. the high pressure over manitoba moves over 
northern ontario and lake superior by friday morning as the low 
pushes into quebec and another 29.9 inch low develops over south 
dakota and nebraska. the high weakens to 30.3 inches as it moves to 
the quebec/ontario line saturday morning as the low shifts to the 
upper mississippi valley. by sunday morning, another 30.3 inch high 
will move over northwestern ontario. the high shifts to northeastern 
ontario monday morning.





lsz267-170800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt wed sep 16 2026

.rest of tonight...east winds 5 to 15 knots veering south late.
patchy fog by midnight. waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots veering west in the
afternoon, then becoming northwest 10 to 20 knots late. waves
calm to 2 feet. 
.thursday night...northwest winds 15 to 25 knots veering north
after midnight, then becoming northeast 10 to 20 knots late.
waves building to 2 to 4 feet. 
.friday...northeast winds 5 to 15 knots veering east by mid
afternoon. waves subsiding to calm to 2 feet. 
.friday night...east winds 5 to 15 knots becoming southeast 10 to
20 knots after midnight. a slight chance of showers after
midnight. waves calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots backing east by mid
afternoon. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.saturday night...northeast winds 10 to 20 knots. waves calm to
2 feet. 
.sunday...northeast winds 10 to 20 knots becoming east 15 to
25 knots. waves building to 1 to 3 feet. 
.monday...east winds 5 to 15 knots increasing to 10 to 20 knots.
waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202609170800;;576067

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt wed sep 16 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...

this evening an expansive area of high pressure was over the region 
with 30.3 inch ridging over lake superior. one high pressure center, 
at 30.4 inches, was over quebec and the other, at 30.4 inches, was 
over southern manitoba. the high pressure over manitoba moves over 
northern ontario and lake superior by friday morning as the low 
pushes into quebec and another 29.9 inch low develops over south 
dakota and nebraska. the high weakens to 30.3 inches as it moves to 
the quebec/ontario line saturday morning as the low shifts to the 
upper mississippi valley. by sunday morning, another 30.3 inch high 
will move over northwestern ontario. the high shifts to northeastern 
ontario monday morning.





lsz162-170800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt wed sep 16 2026 /901 pm cdt wed sep 16 2026/

.rest of tonight...northeast winds less than 10 knots veering
east after midnight, then veering west late. a chance of showers
by midnight. waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight, then veering east late. waves
building to 1 to 3 feet. 
.friday...east winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. a chance of showers. waves 1 to 3 feet. 
.friday night...east winds 15 to 25 knots. a chance of showers.
waves building to 2 to 4 feet. 
.saturday...east winds 20 to 30 knots backing northeast by mid
afternoon. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 1 to 3 feet. 
.saturday night...northeast winds 15 to 25 knots. waves subsiding
to calm to 2 feet, then building to 1 to 3 feet. 
.sunday...northeast gales to 35 knots becoming east 20 to
30 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 1 to 3 feet. 
.monday...east winds 15 to 25 knots. waves subsiding to calm to
2 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202609170800;;576068

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt wed sep 16 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...

this evening an expansive area of high pressure was over the region 
with 30.3 inch ridging over lake superior. one high pressure center, 
at 30.4 inches, was over quebec and the other, at 30.4 inches, was 
over southern manitoba. the high pressure over manitoba moves over 
northern ontario and lake superior by friday morning as the low 
pushes into quebec and another 29.9 inch low develops over south 
dakota and nebraska. the high weakens to 30.3 inches as it moves to 
the quebec/ontario line saturday morning as the low shifts to the 
upper mississippi valley. by sunday morning, another 30.3 inch high 
will move over northwestern ontario. the high shifts to northeastern 
ontario monday morning.





lsz263-170800-
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-
1001 pm edt wed sep 16 2026

.rest of tonight...east winds less than 10 knots becoming
southeast 5 to 15 knots after midnight, then veering southwest
late. a slight chance of showers. waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight, then becoming east 5 to 15 knots
late. waves building to 1 to 3 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a chance of showers by mid afternoon. waves
subsiding to calm to 2 feet. 
.friday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a chance of showers. waves building to
1 to 3 feet, then subsiding to calm to 2 feet. 
.saturday...east winds 10 to 20 knots becoming northeast 15 to
25 knots by mid afternoon. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.saturday night...northeast winds 15 to 25 knots. waves subsiding
to calm to 2 feet, then building to 1 to 3 feet. 
.sunday...northeast gales to 35 knots becoming east 20 to
30 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet. 
.monday...east winds 15 to 25 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202609170800;;576069

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt wed sep 16 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...

this evening an expansive area of high pressure was over the region 
with 30.3 inch ridging over lake superior. one high pressure center, 
at 30.4 inches, was over quebec and the other, at 30.4 inches, was 
over southern manitoba. the high pressure over manitoba moves over 
northern ontario and lake superior by friday morning as the low 
pushes into quebec and another 29.9 inch low develops over south 
dakota and nebraska. the high weakens to 30.3 inches as it moves to 
the quebec/ontario line saturday morning as the low shifts to the 
upper mississippi valley. by sunday morning, another 30.3 inch high 
will move over northwestern ontario. the high shifts to northeastern 
ontario monday morning.





lsz264-170800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt wed sep 16 2026

.rest of tonight...south winds less than 10 knots increasing to
5 to 15 knots after midnight. a slight chance of showers. waves
calm to 2 feet. 
.thursday...west winds 5 to 15 knots veering northwest in the
afternoon, then backing west late. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots veering northeast
late. waves building to 1 to 3 feet, then subsiding to calm to
2 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves calm to 2 feet. 
.friday night...southeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a slight chance of showers after
midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves calm to 2 feet. 
.sunday...northeast winds 15 to 25 knots becoming east 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.monday...east winds 10 to 20 knots becoming southeast 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202609170800;;576070

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt wed sep 16 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...

this evening an expansive area of high pressure was over the region 
with 30.3 inch ridging over lake superior. one high pressure center, 
at 30.4 inches, was over quebec and the other, at 30.4 inches, was 
over southern manitoba. the high pressure over manitoba moves over 
northern ontario and lake superior by friday morning as the low 
pushes into quebec and another 29.9 inch low develops over south 
dakota and nebraska. the high weakens to 30.3 inches as it moves to 
the quebec/ontario line saturday morning as the low shifts to the 
upper mississippi valley. by sunday morning, another 30.3 inch high 
will move over northwestern ontario. the high shifts to northeastern 
ontario monday morning.





lsz265-170800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt wed sep 16 2026

.rest of tonight...southeast winds 10 to 20 knots veering south
late. a chance of showers. waves calm to 2 feet. 
.thursday...west winds 10 to 20 knots veering northwest late.
waves calm to 2 feet. 
.thursday night...northwest winds 10 to 20 knots veering north
after midnight, then becoming northeast 15 to 25 knots late.
waves building to 1 to 3 feet. 
.friday...east winds 10 to 20 knots. a slight chance of showers
by mid afternoon. waves subsiding to calm to 2 feet, then
building to 1 to 3 feet. 
.friday night...southeast winds 15 to 25 knots. a chance of
showers. waves subsiding to calm to 2 feet, then building to 1 to
3 feet. 
.saturday...southeast winds 15 to 25 knots backing east by mid
afternoon. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.saturday night...northeast winds 10 to 20 knots. waves building
to 1 to 3 feet. 
.sunday...northeast winds 20 to 30 knots becoming east 15 to
25 knots. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.monday...east winds 15 to 25 knots becoming southeast 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 170201
glfls 
expires:202609170800;;576071

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt wed sep 16 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...

this evening an expansive area of high pressure was over the region 
with 30.3 inch ridging over lake superior. one high pressure center, 
at 30.4 inches, was over quebec and the other, at 30.4 inches, was 
over southern manitoba. the high pressure over manitoba moves over 
northern ontario and lake superior by friday morning as the low 
pushes into quebec and another 29.9 inch low develops over south 
dakota and nebraska. the high weakens to 30.3 inches as it moves to 
the quebec/ontario line saturday morning as the low shifts to the 
upper mississippi valley. by sunday morning, another 30.3 inch high 
will move over northwestern ontario. the high shifts to northeastern 
ontario monday morning.





lsz266-170800-
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-
1001 pm edt wed sep 16 2026

.rest of tonight...southeast winds 5 to 15 knots veering south
after midnight. a slight chance of showers. waves calm to 2 feet.
.thursday...southwest winds 10 to 20 knots veering northwest
late. waves calm to 2 feet. 
.thursday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then becoming northeast 10 to 20 knots
late. waves building to 1 to 3 feet. 
.friday...east winds 10 to 20 knots diminishing to 5 to 15 knots
by mid afternoon. waves subsiding to calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of showers. waves calm to
2 feet. 
.saturday...southeast winds 10 to 20 knots backing east by mid
afternoon. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.saturday night...northeast winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves calm to 2 feet. 
.sunday...northeast winds 15 to 25 knots veering east. waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.monday...east winds 10 to 20 knots. waves subsiding to calm to
2 feet. 

$$