fzus61 kbuf 160202
glflo 
expires:202609160900;;520924

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt tue sep 15 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...
high pressure 30.30 inches continues exiting to the east tonight.
a cold front crosses the lake early wednesday, before stalling
across southern new york through thursday. high pressure 30.20
inches builds into new england friday and through the weekend as
an active frontal boundary establishes to the southwest.


loz062-160900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt tue sep 15 2026

.rest of tonight...south winds around 10 knots becoming
southwest. a chance of showers after midnight. waves 2 feet or
less. 
.wednesday...west winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.wednesday night...northwest winds 10 knots or less becoming
east. waves 1 foot or less. 
.thursday...northeast winds 10 knots or less becoming north. a
chance of showers. waves 1 foot or less. 
.thursday night...northwest winds 10 knots or less. waves 1 foot
or less. 
.friday...north winds 5 to 15 knots becoming east. waves 1 foot
or less. 
.saturday...east winds 10 to 15 knots. a chance of showers during
the day, then showers likely saturday night. waves 1 to 3 feet
building to 2 to 4 feet. 
.sunday...northeast winds 15 to 25 knots. showers likely during
the day, then a chance of showers sunday night. waves 2 to
4 feet. 

$$

fzus61 kbuf 160202
glflo 
expires:202609160900;;520925

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt tue sep 15 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...
high pressure 30.30 inches continues exiting to the east tonight.
a cold front crosses the lake early wednesday, before stalling
across southern new york through thursday. high pressure 30.20
inches builds into new england friday and through the weekend as
an active frontal boundary establishes to the southwest.


loz063>065-160900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt tue sep 15 2026

.rest of tonight...south winds 15 to 25 knots. a chance of
showers late this evening. waves 3 to 5 feet subsiding to 2 to
4 feet. 
.wednesday...southwest winds 5 to 15 knots becoming west less
than 10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.wednesday night...northwest winds 10 knots or less becoming
east. waves 1 foot or less. 
.thursday...east winds less than 10 knots becoming north. a
chance of showers. waves 1 foot or less. 
.thursday night...northwest winds 10 knots or less increasing to
10 to 15 knots. waves 2 feet or less. 
.friday...north winds 10 to 15 knots becoming east. waves 2 feet
or less. 
.saturday...east winds 5 to 15 knots. a chance of showers during
the day, then showers likely saturday night. waves 2 feet or less
building to 2 to 4 feet. 
.sunday...northeast winds 15 to 20 knots. showers likely during
the day, then a chance of showers sunday night. waves 2 to
4 feet. 

$$

fzus61 kcle 160210
glfle 
expires:202609160815;;521628

open lake forecast for lake erie
national weather service cleveland oh
1010 pm edt tue sep 15 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 cold front will pass over lake erie overnight then settle 
across the ohio valley through thursday. low pressure 30.20 will 
move along the front before moving southward as high pressure 
30.20 builds in from the north friday into saturday.


lez061-169-160815-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
1010 pm edt tue sep 15 2026

.rest of tonight...south winds 10 to 15 knots becoming southwest.
a slight chance of showers and thunderstorms 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 1 to 3 feet. 
.wednesday...southwest winds 10 knots or less becoming northeast.
a chance of showers with a slight chance of thunderstorms early,
then a chance of showers late in the morning. a slight chance of
showers early in the afternoon. waves 2 feet or less. 
.wednesday night...northeast winds 10 knots or less becoming
east. a chance of showers overnight. waves 1 foot or less. 
.thursday...east winds 10 knots or less becoming north. showers
likely. waves 1 foot or less. 
.thursday night...north winds 5 to 15 knots. waves 2 feet or
less. 
.friday...northeast winds 5 to 15 knots becoming east. waves 1 to
2 feet. 
.saturday...east winds 5 to 15 knots. showers likely during the
day, then showers saturday night. waves 1 to 3 feet building to
2 to 4 feet. 
.sunday...northeast winds 15 to 20 knots becoming east. a chance
of showers. waves 3 to 5 feet subsiding to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 160210
glfle 
expires:202609160815;;521627

open lake forecast for lake erie
national weather service cleveland oh
1010 pm edt tue sep 15 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 cold front will pass over lake erie overnight then settle 
across the ohio valley through thursday. low pressure 30.20 will 
move along the front before moving southward as high pressure 
30.20 builds in from the north friday into saturday.


lez164>168-160815-
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-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
1010 pm edt tue sep 15 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 160210
glfle 
expires:202609160815;;521626

open lake forecast for lake erie
national weather service cleveland oh
1010 pm edt tue sep 15 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 cold front will pass over lake erie overnight then settle 
across the ohio valley through thursday. low pressure 30.20 will 
move along the front before moving southward as high pressure 
30.20 builds in from the north friday into saturday.


lez162-163-160815-
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-
1010 pm edt tue sep 15 2026

.rest of tonight...southwest winds 5 to 10 knots becoming north.
a chance of showers and thunderstorms late this evening, then
showers with a chance of thunderstorms after midnight. waves
2 feet or less. 
.wednesday...north winds 5 to 10 knots becoming northeast.
showers likely with a slight chance of thunderstorms early, then
a chance of showers with a slight chance of thunderstorms. a
slight chance of showers and thunderstorms late. waves 1 foot or
less. 
.wednesday night...northeast winds 5 to 10 knots becoming east. a
chance of showers overnight. waves 1 foot or less. 
.thursday...northwest winds 10 knots or less becoming north.
showers likely. waves 1 foot or less. 
.thursday night...northeast winds 5 to 15 knots. waves 2 feet or
less. 
.friday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet. 
.saturday...southeast winds 10 to 15 knots becoming west. showers
likely with a chance of thunderstorms. waves 1 to 3 feet. 
.sunday...north winds 15 to 20 knots becoming northeast. a chance
of showers. waves 1 to 3 feet building to 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 160139
glfsc 
expires:202609161000;;520514

lake st clair forecast
national weather service detroit/pontiac mi
939 pm edt tue sep 15 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...low pressure, 29.40 inches, tracks from northern
ontario into hudson bay tonight. it sends a cold front across the
great lakes overnight into early wednesday, with high pressure
then passing across northern ontario during the day wednesday.
the cold front stalls near the southern great lakes into
thursday.


lcz460-161000-
lake st clair-
939 pm edt tue sep 15 2026

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

$$

fzus63 kdtx 160139
glflh 
expires:202609161000;;520510

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 pm edt tue sep 15 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...low pressure, 29.40 inches, tracks from northern
ontario into hudson bay tonight. it sends a cold front across the
great lakes overnight into early wednesday, with high pressure
then passing across northern ontario during the day wednesday.
the cold front stalls near the southern great lakes into
thursday.


lhz361-161000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
939 pm edt tue sep 15 2026

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


$$

fzus63 kdtx 160139
glflh 
expires:202609161000;;520511

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 pm edt tue sep 15 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...low pressure, 29.40 inches, tracks from northern
ontario into hudson bay tonight. it sends a cold front across the
great lakes overnight into early wednesday, with high pressure
then passing across northern ontario during the day wednesday.
the cold front stalls near the southern great lakes into
thursday.


lhz362-363-161000-
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 tue sep 15 2026

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


$$

fzus63 kdtx 160139
glflh 
expires:202609161000;;520512

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 pm edt tue sep 15 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...low pressure, 29.40 inches, tracks from northern
ontario into hudson bay tonight. it sends a cold front across the
great lakes overnight into early wednesday, with high pressure
then passing across northern ontario during the day wednesday.
the cold front stalls near the southern great lakes into
thursday.


lhz462>464-161000-
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 tue sep 15 2026

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


$$

fzus63 kmkx 160129
glflm 
expires:202609160915;;520334

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
829 pm cdt tue sep 15 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...

scattered showers and weak thunderstorms remain possible over 
southern portions of the lake through wednesday as a frontal 
boundary remains stalled south of the lake. a separate cold front 
is set to cross the lake tonight, allowing the ongoing breezy 
southwest winds to veer northwest and decelerate. 

high pressure around 30.4 inches will track east across southern
ontario canada late tonight through wednesday, veering winds due
north then northeast. predominantly light and variable winds
expected late wednesday night through thursday as additional
high pressure forms over manitoba and weakens the pressure
gradient. 

breezy east to northeast winds may then develop late this week
into this weekend as the aforementioned high pressure shifts
east across ontario canada and low pressure spreads east from
the great plains. the gradient between these two systems could
drive gusty winds from various directions depending on system
track, though our best guess is predominantly east (northeast to
southeast) for the time being.


lmz261-362-364-366-563-565-567-868-160915-
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-
829 pm cdt tue sep 15 2026

sheboygan wi to pentwater mi north...

.rest of tonight...northwest winds 10 to 20 kt becoming north.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.wednesday...north winds 10 to 20 kt becoming northeast 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.wednesday night...northeast winds 10 to 15 kt becoming
southeast. waves 1 to 2 ft. 
.thursday...east winds 10 to 15 kt backing to northwest. waves
1 to 2 ft. 
.thursday night...north winds 10 to 15 kt becoming northeast.
waves 1 to 3 ft. 
.friday...east winds 10 to 15 kt. waves 1 to 3 ft. 
.friday night...east winds to 30 kt becoming southeast. showers
likely. waves 4 to 6 ft occasionally to 8 ft building to 6 to
9 ft occasionally to 12 ft. 
.saturday...east winds to 30 kt. chance of showers. waves 7 to
10 ft occasionally to 13 ft. 
.sunday...northeast winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft.  

$$

fzus63 kmkx 160129
glflm 
expires:202609160915;;520335

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
829 pm cdt tue sep 15 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...

scattered showers and weak thunderstorms remain possible over 
southern portions of the lake through wednesday as a frontal 
boundary remains stalled south of the lake. a separate cold front 
is set to cross the lake tonight, allowing the ongoing breezy 
southwest winds to veer northwest and decelerate. 

high pressure around 30.4 inches will track east across southern
ontario canada late tonight through wednesday, veering winds due
north then northeast. predominantly light and variable winds
expected late wednesday night through thursday as additional
high pressure forms over manitoba and weakens the pressure
gradient. 

breezy east to northeast winds may then develop late this week
into this weekend as the aforementioned high pressure shifts
east across ontario canada and low pressure spreads east from
the great plains. the gradient between these two systems could
drive gusty winds from various directions depending on system
track, though our best guess is predominantly east (northeast to
southeast) for the time being.


lmz080-669-671-673-675-777-779-870-872-874-876-878-160915-
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-
829 pm cdt tue sep 15 2026

sheboygan wi to pentwater mi south...

.rest of tonight...northwest winds 10 to 20 kt veering to
northeast. scattered showers and thunderstorms through early
evening, then scattered showers with isolated thunderstorms
overnight. waves 3 to 5 ft. 
.wednesday...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. scattered showers in the morning, then isolated showers
and thunderstorms in the afternoon. waves 3 to 5 ft subsiding to
2 to 4 ft. 
.wednesday night...northeast winds 10 to 20 kt veering to south
10 to 15 kt. chance of showers overnight. waves 1 to 3 ft. 
.thursday...north winds 10 to 15 kt. chance of showers in the
morning. waves 1 to 2 ft. 
.thursday night...north winds 10 to 20 kt becoming northeast.
waves 2 to 4 ft. 
.friday...east winds 10 to 20 kt. chance of showers in the
afternoon. waves 3 to 5 ft. 
.friday night...east winds to 30 kt becoming southeast. showers
likely with a chance of thunderstorms. waves 4 to 7 ft
occasionally to 9 ft building to 7 to 10 ft occasionally to
13 ft. 
.saturday...southeast winds to 30 kt becoming south. showers with
a chance of thunderstorms. waves 8 to 11 ft occasionally to
14 ft. 
.sunday...northeast winds 15 to 25 kt. chance of showers. waves
4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmqt 160201
glfls 
expires:202609160800;;520840

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt tue sep 15 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 29.4 inch low near james bay will move northeast overnight as a 
30.2 inch high pressure approaches the area. high pressure will 
build to 30.4 inches inches as it crosses the upper great lakes 
wednesday. high pressure ridging around 30.3 inches then settles 
over lake superior through the rest of the workweek. 




lsz267-160800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt tue sep 15 2026

.rest of tonight...west winds 20 to 30 knots diminishing to 15 to
25 knots after midnight, then becoming northwest 10 to 20 knots
late. waves 6 to 9 feet occasionally to 11 feet subsiding to 2 to
4 feet. 
.wednesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots veering south after
midnight. a slight chance of showers. waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots becoming northwest
10 to 20 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...northwest winds 15 to 25 knots becoming
northeast 10 to 20 knots after midnight. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.friday...east winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.friday night...east winds 5 to 15 knots becoming southeast 10 to
20 knots after midnight. a chance of showers. waves calm to
2 feet. 
.saturday...east winds 10 to 20 knots backing northeast. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.sunday...northeast winds 10 to 20 knots veering east. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 160201
glfls 
expires:202609160800;;520837

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt tue sep 15 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 29.4 inch low near james bay will move northeast overnight as a 
30.2 inch high pressure approaches the area. high pressure will 
build to 30.4 inches inches as it crosses the upper great lakes 
wednesday. high pressure ridging around 30.3 inches then settles 
over lake superior through the rest of the workweek. 




lsz264-160800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt tue sep 15 2026

.rest of tonight...west winds 10 to 20 knots becoming northwest
5 to 15 knots late. waves 3 to 6 feet occasionally to 8 feet
subsiding to 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots becoming north less
than 10 knots in the afternoon, then veering southeast late.
waves subsiding to calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots veering south
after midnight. a slight chance of showers through 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 veering northeast
after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...east winds 10 to 20 knots backing northeast. waves
calm to 2 feet. 
.sunday...east winds 10 to 20 knots diminishing to 5 to 15 knots.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 160201
glfls 
expires:202609160800;;520838

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt tue sep 15 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 29.4 inch low near james bay will move northeast overnight as a 
30.2 inch high pressure approaches the area. high pressure will 
build to 30.4 inches inches as it crosses the upper great lakes 
wednesday. high pressure ridging around 30.3 inches then settles 
over lake superior through the rest of the workweek. 




lsz265-160800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt tue sep 15 2026

.rest of tonight...west winds 20 to 30 knots diminishing to 15 to
25 knots after midnight, then becoming northwest 10 to 20 knots
late. waves 3 to 5 feet occasionally to 7 feet subsiding to calm
to 2 feet. 
.wednesday...northwest winds 5 to 15 knots veering east late.
waves calm to 2 feet. 
.wednesday night...southeast winds 10 to 20 knots veering
southwest late. a slight chance of showers. waves calm to 2 feet.
.thursday...west winds 10 to 20 knots veering northwest by mid
afternoon. waves calm to 2 feet. 
.thursday night...north winds 10 to 20 knots veering northeast
after midnight. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. waves 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...east winds 15 to 25 knots backing northeast. a chance
of showers. waves building to 2 to 4 feet, then subsiding 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. 

$$

fzus63 kmqt 160201
glfls 
expires:202609160800;;520835

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt tue sep 15 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 29.4 inch low near james bay will move northeast overnight as a 
30.2 inch high pressure approaches the area. high pressure will 
build to 30.4 inches inches as it crosses the upper great lakes 
wednesday. high pressure ridging around 30.3 inches then settles 
over lake superior through the rest of the workweek. 




lsz162-160800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt tue sep 15 2026 /900 pm cdt tue sep 15 2026/

.rest of tonight...west winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then veering northwest late. waves 1 to
3 feet subsiding to calm to 2 feet. 
.wednesday...north winds 5 to 15 knots veering east in the
afternoon. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots diminishing to less
than 10 knots after midnight, then veering west late. a slight
chance of showers through 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. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. waves building to 1 to 3 feet. 
.friday night...east winds 15 to 25 knots. a chance of showers.
waves building to 2 to 4 feet. 
.saturday...northeast winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to 1 to 3 feet. 
.sunday...northeast winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 160201
glfls 
expires:202609160800;;520836

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt tue sep 15 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 29.4 inch low near james bay will move northeast overnight as a 
30.2 inch high pressure approaches the area. high pressure will 
build to 30.4 inches inches as it crosses the upper great lakes 
wednesday. high pressure ridging around 30.3 inches then settles 
over lake superior through the rest of the workweek. 




lsz263-160800-
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 tue sep 15 2026

.rest of tonight...west winds 10 to 20 knots veering northwest
late. waves 3 to 5 feet occasionally to 7 feet subsiding to calm
to 2 feet. 
.wednesday...north winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then becoming east 5 to 15 knots late.
waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots veering southwest
late. a slight chance of showers through 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 veering northeast
after midnight. waves 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...east winds 10 to 20 knots. a chance of showers.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.saturday...east winds 15 to 25 knots backing northeast. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.sunday...northeast winds 20 to 30 knots becoming east 15 to
25 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 160201
glfls 
expires:202609160800;;520839

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt tue sep 15 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 29.4 inch low near james bay will move northeast overnight as a 
30.2 inch high pressure approaches the area. high pressure will 
build to 30.4 inches inches as it crosses the upper great lakes 
wednesday. high pressure ridging around 30.3 inches then settles 
over lake superior through the rest of the workweek. 




lsz266-160800-
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 tue sep 15 2026

.rest of tonight...west winds 20 to 30 knots diminishing to 15 to
25 knots after midnight, then becoming northwest 10 to 20 knots
late. waves 5 to 8 feet occasionally to 10 feet subsiding to 1 to
3 feet. 
.wednesday...northwest winds 5 to 15 knots diminishing to less
than 10 knots in the afternoon, then becoming northeast 5 to
15 knots late. waves subsiding to calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots veering south
after midnight. a slight chance of showers. waves calm to 2 feet.
.thursday...west winds 10 to 20 knots veering northwest by mid
afternoon. waves calm to 2 feet. 
.thursday night...north winds 10 to 20 knots veering northeast
after midnight. 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...east winds 10 to 20 knots veering southeast after
midnight. a chance of showers. waves building to 1 to 3 feet. 
.saturday...east winds 10 to 20 knots backing northeast. a chance
of showers. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.sunday...northeast winds 15 to 25 knots becoming east 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 

$$