fzus61 kbuf 150200
glflo 
expires:202609150915;;466186

open lake forecast for lake ontario
national weather service buffalo ny
issued by national weather service cleveland oh
1000 pm edt mon sep 14 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 30.4 inch high will settle over the lower great 
lakes tonight. the high will drift to the eastern seaboard 
tuesday then off the mid atlantic coast by wednesday. meanwhile, 
a 29.4 inch low over far northwest ontario province tuesday night
will move to hudson bay by late wednesday, then to northern 
quebec by thursday. a trailing cold front will cross the lower 
great lakes wednesday night, with a 30.0 inch high building east 
across the eastern great lakes region thursday through friday, 
before sliding east into new england by saturday.


loz062-150915-
lake ontario open waters from the niagara river to hamlin beach-
1000 pm edt mon sep 14 2026

.overnight...southeast winds 10 knots or less becoming
south 10 to 15 knots. waves 1 foot or less. 
.tuesday...south winds 5 to 15 knots. waves 2 feet or less. 
.tuesday night...south winds 5 to 10 knots becoming southwest. a
chance of showers. waves 2 feet or less. 
.wednesday...west winds 5 to 10 knots becoming light and
variable. a chance of showers in the morning. waves 1 foot or
less. 
.wednesday night...northwest winds 10 knots or less becoming
northeast. a chance of showers overnight. waves 1 foot or less. 
.thursday...northeast winds 5 to 10 knots becoming north. showers
likely during the day, then a chance of showers thursday night.
waves 1 foot or less. 
.friday...northeast winds 5 to 10 knots becoming east. waves
1 foot or less. 
.saturday...east winds 10 to 15 knots becoming northeast 15 to
20 knots. a chance of showers. waves 1 to 3 feet building to 2 to
4 feet. 

$$

fzus61 kbuf 150200
glflo 
expires:202609150915;;466187

open lake forecast for lake ontario
national weather service buffalo ny
issued by national weather service cleveland oh
1000 pm edt mon sep 14 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 30.4 inch high will settle over the lower great 
lakes tonight. the high will drift to the eastern seaboard 
tuesday then off the mid atlantic coast by wednesday. meanwhile, 
a 29.4 inch low over far northwest ontario province tuesday night
will move to hudson bay by late wednesday, then to northern 
quebec by thursday. a trailing cold front will cross the lower 
great lakes wednesday night, with a 30.0 inch high building east 
across the eastern great lakes region thursday through friday, 
before sliding east into new england by saturday.


loz063>065-150915-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1000 pm edt mon sep 14 2026

.overnight...northwest winds 5 to 10 knots becoming south.
waves 1 foot or less. 
.tuesday...south winds 15 to 20 knots. waves 1 to 3 feet building
to 2 to 4 feet. 
.tuesday night...south winds 15 to 25 knots. a chance of showers.
waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to
4 feet. 
.wednesday...southwest winds 15 to 20 knots diminishing to
10 knots or less. a chance of showers. waves 1 to 3 feet
subsiding to 1 foot or less. 
.wednesday night...west winds 10 knots or less becoming east. a
chance of showers overnight. waves 1 foot or less. 
.thursday...east winds 5 to 10 knots becoming north. showers
likely during the day, then a chance of showers thursday night.
waves 2 feet or less. 
.friday...north winds 5 to 10 knots becoming east. waves 2 feet
or less. 
.saturday...southeast winds 5 to 15 knots becoming northeast
15 to 20 knots. a chance of showers. waves 2 feet or less
building to 2 to 4 feet. 

$$

fzus61 kcle 150151
glfle 
expires:202609150815;;465956

open lake forecast for lake erie
national weather service cleveland oh
951 pm edt mon sep 14 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 30.40 inches will build east of the area tonight 
before a warm front lifts north over lake erie tuesday. a cold 
front with pressure of 30.20 inches will settle south across lake
erie late tuesday into early wednesday. the front will stall to 
the south of the lake and waver over the region through thursday. 
the front will finally push south of the lake as a cold front late
thursday into friday, allowing high pressure 30.20 to build over 
lake erie into saturday.


lez164>168-150815-
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-
951 pm edt mon sep 14 2026

.overnight...southeast winds 5 to 10 knots becoming south
and increasing to 15 to 20 knots. waves 1 foot or less building
to 2 to 4 feet. 
.tuesday...south winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday night...south winds 15 to 20 knots becoming southwest
5 to 15 knots. a chance of showers overnight. waves 1 to 3 feet. 
.wednesday...northwest winds 5 to 10 knots becoming northeast. a
chance of showers. waves 2 feet or less. 
.wednesday night...northeast winds 5 to 10 knots becoming
southeast. a chance of showers overnight. waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots becoming north. a
chance of showers. waves 2 feet or less. 
.friday...northeast winds 5 to 15 knots becoming southeast. waves
1 to 2 feet. 
.saturday...south winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers during the day, then showers likely
with a chance of thunderstorms saturday night. waves 1 to 3 feet
building to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 150151
glfle 
expires:202609150815;;465957

open lake forecast for lake erie
national weather service cleveland oh
951 pm edt mon sep 14 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 30.40 inches will build east of the area tonight 
before a warm front lifts north over lake erie tuesday. a cold 
front with pressure of 30.20 inches will settle south across lake
erie late tuesday into early wednesday. the front will stall to 
the south of the lake and waver over the region through thursday. 
the front will finally push south of the lake as a cold front late
thursday into friday, allowing high pressure 30.20 to build over 
lake erie into saturday.


lez061-169-150815-
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-
951 pm edt mon sep 14 2026

.overnight...southeast winds 5 to 15 knots becoming south
15 to 20 knots. waves 1 foot or less building to 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.tuesday night...south winds 15 to 20 knots becoming southwest
5 to 15 knots. a chance of showers overnight. waves 1 to 3 feet. 
.wednesday...southwest winds 10 knots or less becoming northeast.
a chance of showers. waves 1 foot 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 5 to 10 knots becoming north. showers
likely with a chance of thunderstorms during the day. waves
1 foot or less. 
.friday...northeast winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.saturday...south winds 5 to 15 knots increasing to 15 to
20 knots. a chance of showers during the day, then showers likely
saturday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 150151
glfle 
expires:202609150815;;465955

open lake forecast for lake erie
national weather service cleveland oh
951 pm edt mon sep 14 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 30.40 inches will build east of the area tonight 
before a warm front lifts north over lake erie tuesday. a cold 
front with pressure of 30.20 inches will settle south across lake
erie late tuesday into early wednesday. the front will stall to 
the south of the lake and waver over the region through thursday. 
the front will finally push south of the lake as a cold front late
thursday into friday, allowing high pressure 30.20 to build over 
lake erie into saturday.


lez162-163-150815-
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-
951 pm edt mon sep 14 2026

.overnight...southeast winds 10 to 15 knots becoming south
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday...south winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 2 feet. 
.tuesday night...south winds 5 to 15 knots becoming west. a
chance of showers and thunderstorms in the evening, then showers
likely with a chance of thunderstorms overnight. waves 2 feet or
less. 
.wednesday...northwest winds 5 to 10 knots becoming northeast.
showers likely in the morning, then a chance of showers in the
afternoon. 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...southwest winds 10 knots or less becoming northeast
10 to 15 knots. showers likely during the day, then a chance of
showers thursday night. waves 2 feet or less. 
.friday...northeast winds 5 to 15 knots becoming southeast. waves
2 feet or less. 
.saturday...south winds 10 to 15 knots becoming southwest. a
chance of showers and thunderstorms. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 150202
glfsc 
expires:202609151015;;466253

lake st clair forecast
national weather service detroit/pontiac mi
1002 pm edt mon sep 14 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, 29.30 inches, tracks across northern
ontario on tuesday which elevates wind gusts to gale force across
central and northern lake huron. a gale warning is in effect
there early tuesday morning through tuesday afternoon. this
system ushers a weak cold front across the region tuesday night,
then high pressure passes across northern ontario on wednesday.


lcz460-151015-
lake st clair-
1002 pm edt mon sep 14 2026

.rest of tonight...southeast winds 5 to 10 knots becoming south 15
to 20 knots. partly cloudy. waves 2 feet or less.
.tuesday...south winds 20 to 25 knots diminishing to 15 to 20 knots
in the late morning and afternoon. partly sunny. a chance of light
showers in the afternoon. waves 1 to 3 feet.
.tuesday night...southwest winds 10 to 15 knots diminishing to 5 to
10 knots by midnight...then veering to the northwest after midnight.
partly cloudy early in the evening becoming mostly cloudy. a chance
of showers and thunderstorms early in the evening...then a chance of
light showers in the late evening and overnight. waves 2 feet or
less.
.wednesday...north winds 10 to 15 knots diminishing to 5 to 10 knots
early 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
becoming mostly cloudy by midnight becoming partly cloudy. a chance
of light showers after midnight. waves 2 feet or less.
.thursday...north winds 5 to 10 knots. partly sunny becoming mostly
cloudy. a chance of light showers. waves 2 feet or less.
.friday...northeast winds 5 to 10 knots. partly cloudy. waves 2 feet
or less.
.saturday...south winds 10 to 15 knots. partly cloudy. showers
likely. waves 2 feet or less.

$$

fzus63 kdtx 150201
glflh 
expires:202609151015;;466226

open lake forecast for lake huron
national weather service detroit/pontiac mi
1001 pm edt mon sep 14 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, 29.30 inches, tracks across northern
ontario on tuesday which elevates wind gusts to gale force across
central and northern lake huron. a gale warning is in effect
there early tuesday morning through tuesday afternoon. this
system ushers a weak cold front across the region tuesday night,
then high pressure passes across northern ontario on wednesday.


lhz361-151015-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
1001 pm edt mon sep 14 2026

...gale warning in effect from 4 am edt tuesday through tuesday
afternoon...

.rest of tonight...southeast winds 15 to 20 knots becoming south
20 to 25 knots after midnight. gusts to 35 knot gales. showers
after midnight. waves 4 to 6 feet. waves occasionally around
8 feet. 
.tuesday...south winds 20 to 25 knots decreasing to 15 to
20 knots in the afternoon. gusts to 35 knot gales. showers in the
morning. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tuesday night...west winds 10 to 15 knots with gusts to around
30 knots veering to the northwest by midnight...then decreasing
to 5 to 10 knots after midnight. waves 3 to 5 feet subsiding to
1 to 3 feet after midnight. 
.wednesday...northwest winds 5 to 10 knots early 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 becoming west 5 to 10 knots
late in the afternoon...then veering to the northwest late in the
evening. waves 2 feet or less. 
.friday...north winds 5 to 10 knots veering to the east in the
late morning and early afternoon...then becoming light and
variable early in the evening becoming southeast 5 to 10 knots by
midnight. a chance of showers by midnight. waves 2 feet or less. 
.saturday...southeast winds 10 to 15 knots backing to the
northeast by midnight. showers likely until afternoon...then a
chance of showers . waves 1 to 3 feet building to 2 to 4 feet by
midnight. 


$$

fzus63 kdtx 150201
glflh 
expires:202609151015;;466227

open lake forecast for lake huron
national weather service detroit/pontiac mi
1001 pm edt mon sep 14 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, 29.30 inches, tracks across northern
ontario on tuesday which elevates wind gusts to gale force across
central and northern lake huron. a gale warning is in effect
there early tuesday morning through tuesday afternoon. this
system ushers a weak cold front across the region tuesday night,
then high pressure passes across northern ontario on wednesday.


lhz362-363-151015-
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-
1001 pm edt mon sep 14 2026

...gale warning in effect from 4 am edt tuesday through tuesday
afternoon...

.rest of tonight...southeast winds 10 to 15 knots becoming south
20 to 25 knots with gusts to 35 knot gales. a chance of showers
after midnight. waves 1 to 3 feet building to 6 to 9 feet. waves
occasionally around 12 feet. 
.tuesday...south winds to 30 knots decreasing to 20 to 25 knots
late in the afternoon. gusts to 40 knot gales. a chance of
showers in the morning. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.tuesday night...southwest winds 10 to 15 knots. waves 4 to
6 feet subsiding to 2 to 4 feet after midnight. waves
occasionally around 8 feet. 
.wednesday...north winds 5 to 10 knots. waves 2 feet or less. 
.wednesday night...light and variable winds becoming northeast
5 to 10 knots by midnight...then becoming light and variable
after midnight. a chance of showers after midnight. waves 2 feet
or less. 
.thursday...light and variable winds becoming north 5 to 10 knots
late in the afternoon. waves 2 feet or less. 
.friday...north winds 5 to 10 knots veering to the northeast. a
chance of showers by midnight. waves 2 feet or less. 
.saturday...southeast winds 10 to 15 knots becoming northeast
15 to 20 knots by midnight. showers likely...then a chance of
showers by midnight. waves 1 to 3 feet building to 2 to 4 feet . 


$$

fzus63 kdtx 150201
glflh 
expires:202609151015;;466228

open lake forecast for lake huron
national weather service detroit/pontiac mi
1001 pm edt mon sep 14 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, 29.30 inches, tracks across northern
ontario on tuesday which elevates wind gusts to gale force across
central and northern lake huron. a gale warning is in effect
there early tuesday morning through tuesday afternoon. this
system ushers a weak cold front across the region tuesday night,
then high pressure passes across northern ontario on wednesday.


lhz462>464-151015-
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-
1001 pm edt mon sep 14 2026

.rest of tonight...southeast winds 5 to 10 knots becoming south
15 to 20 knots with gusts to around 30 knots. waves 1 to 3 feet
building to 4 to 6 feet early in the morning. waves occasionally
around 8 feet. 
.tuesday...south winds 20 to 25 knots decreasing to 15 to
20 knots late in the afternoon. gusts to 30 knots. a chance of
showers. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tuesday night...southwest winds 10 to 15 knots becoming south
5 to 10 knots by midnight...then becoming northwest 10 to
15 knots after midnight. waves 3 to 5 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.wednesday...north winds 10 to 15 knots. waves 1 to 3 feet. 
.wednesday night...northeast winds 5 to 10 knots veering to the
east after midnight. a chance of showers after midnight. waves
2 feet or less. 
.thursday...north winds 5 to 10 knots. a chance of showers in the
morning. waves 2 feet or less. 
.friday...north winds 5 to 10 knots veering to the northeast by
midnight. a chance of showers by midnight. waves 2 feet or less. 
.saturday...southeast winds 10 to 15 knots becoming south 15 to
20 knots early in the evening...then backing to the east by
midnight. a chance of showers early in the morning...then showers
likely until early evening. a chance of showers by midnight.
waves 1 to 3 feet building to 2 to 4 feet . 


$$

fzus63 kmkx 150145
glflm 
expires:202609150930;;465928

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
845 pm cdt mon sep 14 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...

southerly winds will increase to gales by late this evening and
continue through the night. a gale warning is in effect. the 
gales will then decrease from south to north across the lake 
through tuesday morning. the southerly gales are a result of low 
pressure around 29.3 inches tracking from southern manitoba toward
southern hudson bay through tuesday. the trailing cold front will
then slow and weaken as it moves across the lake tuesday afternoon
into early evening. modest northwest winds tuesday evening will
shift to northeasterly by early wednesday morning as high 
pressure around 30.4 inches moves across the northern great lakes.  
lighter winds will then prevail wednesday night into friday until  
stronger southerly winds return friday night and saturday ahead 
of another low pressure area approaching from the great plains. 


lmz261-362-364-563-150930-
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 rock island passage to sturgeon bay wi-
845 pm cdt mon sep 14 2026

sturgeon bay wi to point betsie mi north...

...gale warning in effect through tuesday afternoon...

.rest of tonight...south winds to 30 kt increasing to gales to
40 kt. showers through early evening, then showers with isolated
thunderstorms overnight. waves 4 to 6 ft occasionally to 8 ft
building to 10 to 14 ft occasionally to 18 ft. 
.tuesday...south gales to 40 kt becoming west gales to 35 kt.
scattered showers in the morning. waves 10 to 14 ft occasionally
to 18 ft subsiding to 6 to 9 ft occasionally to 12 ft. 
.tuesday night...west winds to 30 kt becoming northwest 10 to
20 kt late in the evening, then becoming north 10 to 15 kt
overnight. waves 4 to 7 ft occasionally to 9 ft subsiding to 1 to
3 ft. 
.wednesday...northeast winds 5 to 10 kt becoming east. waves 1 to
2 ft. 
.wednesday night...east winds 10 to 15 kt. waves 1 ft or less. 
.thursday...northeast winds 10 to 15 kt becoming north. waves
1 ft or less. 
.thursday night...north winds 10 to 15 kt becoming northeast 5 to
10 kt. waves 1 ft or less. 
.friday...east winds 5 to 10 kt. chance of showers. waves 1 ft or
less. 
.saturday...southeast winds 15 to 25 kt becoming east to 30 kt.
showers likely. waves 3 to 5 ft.  

$$

fzus63 kmkx 150145
glflm 
expires:202609150930;;465930

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
845 pm cdt mon sep 14 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...

southerly winds will increase to gales by late this evening and
continue through the night. a gale warning is in effect. the 
gales will then decrease from south to north across the lake 
through tuesday morning. the southerly gales are a result of low 
pressure around 29.3 inches tracking from southern manitoba toward
southern hudson bay through tuesday. the trailing cold front will
then slow and weaken as it moves across the lake tuesday afternoon
into early evening. modest northwest winds tuesday evening will
shift to northeasterly by early wednesday morning as high 
pressure around 30.4 inches moves across the northern great lakes.  
lighter winds will then prevail wednesday night into friday until  
stronger southerly winds return friday night and saturday ahead 
of another low pressure area approaching from the great plains. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-150930-
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-
845 pm cdt mon sep 14 2026

sheboygan wi to pentwater mi south...

...gale warning in effect until 7 am cdt tuesday...

.rest of tonight...southeast winds to 30 kt becoming south gales
to 40 kt. isolated showers through early evening, then scattered
showers and thunderstorms overnight. waves 4 to 7 ft occasionally
to 9 ft building to 10 to 14 ft occasionally to 18 ft. 
.tuesday...southwest gales to 35 kt diminishing to 15 to 25 kt.
scattered showers with isolated thunderstorms in the morning,
then isolated showers and thunderstorms in the afternoon. waves
8 to 12 ft occasionally to 16 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.tuesday night...west winds 10 to 20 kt veering to northeast.
chance of showers. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. chance of showers in the morning. waves 3 to 5 ft. 
.wednesday night...east winds 10 to 20 kt diminishing to 10 to
15 kt. chance of showers in the evening, then showers likely
overnight. waves 1 to 3 ft. 
.thursday...northeast winds 10 to 15 kt becoming north. showers
likely. waves 1 to 3 ft. 
.thursday night...northeast winds 10 to 20 kt diminishing to
10 to 15 kt. waves 1 to 3 ft. 
.friday...east winds 10 to 15 kt. chance of showers. waves 1 to
3 ft. 
.saturday...south winds to 30 kt becoming southwest. showers
likely with a chance of thunderstorms. waves 6 to 9 ft
occasionally to 12 ft.  

$$

fzus63 kmkx 150145
glflm 
expires:202609150930;;465929

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
845 pm cdt mon sep 14 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...

southerly winds will increase to gales by late this evening and
continue through the night. a gale warning is in effect. the 
gales will then decrease from south to north across the lake 
through tuesday morning. the southerly gales are a result of low 
pressure around 29.3 inches tracking from southern manitoba toward
southern hudson bay through tuesday. the trailing cold front will
then slow and weaken as it moves across the lake tuesday afternoon
into early evening. modest northwest winds tuesday evening will
shift to northeasterly by early wednesday morning as high 
pressure around 30.4 inches moves across the northern great lakes.  
lighter winds will then prevail wednesday night into friday until  
stronger southerly winds return friday night and saturday ahead 
of another low pressure area approaching from the great plains. 


lmz366-565-567-868-150930-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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-
845 pm cdt mon sep 14 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

...gale warning in effect until 7 am cdt tuesday...

.rest of tonight...south winds to 30 kt increasing to gales to
40 kt. scattered showers with isolated thunderstorms through
early evening, then showers with isolated thunderstorms
overnight. waves 4 to 7 ft occasionally to 9 ft building to 10 to
14 ft occasionally to 18 ft. 
.tuesday...south gales to 35 kt becoming southwest to 30 kt, then
becoming west 15 to 25 kt late. scattered showers with isolated
thunderstorms in the morning. waves 10 to 14 ft occasionally to
18 ft subsiding to 5 to 8 ft occasionally to 10 ft. 
.tuesday night...west winds 10 to 20 kt veering to northeast.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.wednesday...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.wednesday night...northeast winds 10 to 15 kt becoming east.
chance of showers overnight. waves 1 to 2 ft. 
.thursday...northeast winds 10 to 15 kt. waves 1 to 2 ft. 
.thursday night...northeast winds 10 to 15 kt. waves 1 to 2 ft. 
.friday...east winds 10 to 15 kt. chance of showers. waves 1 to
2 ft. 
.saturday...south winds to 30 kt diminishing to 15 to 25 kt.
showers likely. waves 5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmqt 150201
glfls 
expires:202609150800;;466219

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon sep 14 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 29.3 inch low near lake winnipeg tonight moves to southern hudson 
bay at 29.4 inches by tuesday afternoon, bringing 29.7 inch 
troughing across lake superior. 30.2 inch high pressure develops 
over the northern plains on tuesday, strengthening to 30.4 inches as 
it crosses the upper great lakes on wednesday. high pressure ridging 
of 30.2 to 30.3 inches then looks to remain over lake superior 
through the rest of the workweek. 




lsz162-150800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt mon sep 14 2026 /901 pm cdt mon sep 14 2026/

...gale warning in effect from 8 am edt /7 am cdt/ tuesday
through tuesday afternoon...

.rest of tonight...southeast winds 20 to 30 knots veering south
after midnight, then becoming southwest gales to 35 knots late. a
chance of showers. waves 3 to 6 feet occasionally to 8 feet. 
.tuesday...west gales to 45 knots diminishing to 20 to 30 knots
late. waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...west winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...north winds less than 10 knots becoming east 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots veering west after
midnight. a slight chance of showers through midnight. waves calm
to 2 feet. 
.thursday...northwest winds 5 to 15 knots backing southwest by
mid afternoon. waves calm to 2 feet. 
.thursday night...northeast winds 5 to 15 knots veering east
after midnight. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots. a chance of showers. waves
building to 1 to 3 feet. 
.saturday...northeast winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202609150800;;466220

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon sep 14 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 29.3 inch low near lake winnipeg tonight moves to southern hudson 
bay at 29.4 inches by tuesday afternoon, bringing 29.7 inch 
troughing across lake superior. 30.2 inch high pressure develops 
over the northern plains on tuesday, strengthening to 30.4 inches as 
it crosses the upper great lakes on wednesday. high pressure ridging 
of 30.2 to 30.3 inches then looks to remain over lake superior 
through the rest of the workweek. 




lsz263-150800-
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 mon sep 14 2026

...gale warning in effect from 8 am edt tuesday through tuesday
evening...

.rest of tonight...south winds 20 to 30 knots becoming southwest
gales to 35 knots late. a chance of showers. waves 3 to 5 feet
occasionally to 7 feet building to 4 to 7 feet occasionally to
9 feet. 
.tuesday...southwest gales to 45 knots becoming west gales to
45 knots with a few storm force gusts to 50 knots possible in the
afternoon, then diminishing to gales to 40 knots late. waves
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 6 to 9 feet occasionally to 11 feet. 
.tuesday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight, then becoming northwest 5 to 15 knots
late. waves subsiding to calm to 2 feet. 
.wednesday...north winds 5 to 15 knots veering east by mid
afternoon. waves 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...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...northeast winds 5 to 15 knots veering east
after midnight. waves calm to 2 feet. 
.friday...southeast winds 5 to 15 knots becoming east 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 
.saturday...northeast winds 20 to 30 knots. a chance of showers.
waves building to 3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202609150800;;466221

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon sep 14 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 29.3 inch low near lake winnipeg tonight moves to southern hudson 
bay at 29.4 inches by tuesday afternoon, bringing 29.7 inch 
troughing across lake superior. 30.2 inch high pressure develops 
over the northern plains on tuesday, strengthening to 30.4 inches as 
it crosses the upper great lakes on wednesday. high pressure ridging 
of 30.2 to 30.3 inches then looks to remain over lake superior 
through the rest of the workweek. 




lsz264-150800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt mon sep 14 2026

...gale warning in effect from 8 am edt tuesday through tuesday
evening...

.rest of tonight...south winds 20 to 30 knots increasing to gales
to 35 knots after midnight, then diminishing to 20 to 30 knots
late. showers by midnight, then a chance of showers after
midnight. waves 4 to 7 feet occasionally to 9 feet building to
7 to 10 feet occasionally to 13 feet, then subsiding to 5 to
8 feet occasionally to 10 feet. 
.tuesday...southwest gales to 45 knots becoming west gales to
45 knots with a few storm force gusts to 50 knots possible in the
afternoon, then diminishing to gales to 45 knots late. waves
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 8 to 11 feet occasionally to 14 feet. 
.tuesday night...west winds 20 to 30 knots diminishing to 10 to
20 knots after midnight, then becoming northwest 5 to 15 knots
late. waves subsiding to 1 to 3 feet. 
.wednesday...north winds less than 10 knots becoming southeast
5 to 15 knots by mid afternoon. waves subsiding to calm to
2 feet. 
.wednesday night...south winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.friday...southeast winds 5 to 15 knots increasing to 10 to
20 knots. a chance of showers. waves calm to 2 feet. 
.saturday...northeast winds 15 to 25 knots. a chance of showers.
waves building to 2 to 4 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202609150800;;466222

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon sep 14 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 29.3 inch low near lake winnipeg tonight moves to southern hudson 
bay at 29.4 inches by tuesday afternoon, bringing 29.7 inch 
troughing across lake superior. 30.2 inch high pressure develops 
over the northern plains on tuesday, strengthening to 30.4 inches as 
it crosses the upper great lakes on wednesday. high pressure ridging 
of 30.2 to 30.3 inches then looks to remain over lake superior 
through the rest of the workweek. 




lsz265-150800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt mon sep 14 2026

...gale warning in effect through tuesday evening...

.rest of tonight...south gales to 40 knots. showers and a slight
chance of thunderstorms by midnight, then a chance of showers
after midnight. waves 4 to 7 feet occasionally to 9 feet building
to 6 to 9 feet occasionally to 11 feet, then subsiding to 3 to
6 feet occasionally to 8 feet. 
.tuesday...southwest gales to 40 knots becoming west gales to
45 knots in the afternoon. waves building to 7 to 10 feet
occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.tuesday night...west winds 20 to 30 knots diminishing to 15 to
25 knots after midnight, then becoming northwest 10 to 20 knots
late. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.wednesday night...southeast winds 10 to 20 knots veering
southwest after midnight. a slight chance of showers through
midnight. waves calm to 2 feet. 
.thursday...west winds 10 to 20 knots veering north by mid
afternoon. waves calm to 2 feet. 
.thursday night...north winds 10 to 20 knots veering east after
midnight. waves calm to 2 feet. 
.friday...southeast winds 10 to 20 knots increasing to 15 to
25 knots. a chance of showers. waves building to 1 to 3 feet. 
.saturday...east winds 15 to 25 knots becoming northeast 20 to
30 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202609150800;;466223

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon sep 14 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 29.3 inch low near lake winnipeg tonight moves to southern hudson 
bay at 29.4 inches by tuesday afternoon, bringing 29.7 inch 
troughing across lake superior. 30.2 inch high pressure develops 
over the northern plains on tuesday, strengthening to 30.4 inches as 
it crosses the upper great lakes on wednesday. high pressure ridging 
of 30.2 to 30.3 inches then looks to remain over lake superior 
through the rest of the workweek. 




lsz266-150800-
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 mon sep 14 2026

...gale warning in effect through tuesday evening...

.rest of tonight...south gales to 40 knots. showers by midnight.
a slight chance of thunderstorms. a chance of showers after
midnight. waves 5 to 8 feet occasionally to 10 feet building to
8 to 11 feet occasionally to 14 feet, then subsiding to 7 to
10 feet occasionally to 13 feet. 
.tuesday...southwest gales to 40 knots becoming west gales to
45 knots in the afternoon. waves subsiding to 6 to 9 feet
occasionally to 11 feet, then building to 10 to 14 feet
occasionally to 18 feet. 
.tuesday night...west gales to 35 knots becoming northwest 15 to
25 knots after midnight, then diminishing to 10 to 20 knots late.
waves subsiding to 1 to 3 feet. 
.wednesday...north winds 5 to 15 knots veering east by mid
afternoon. 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 10 to 20 knots veering northwest by mid
afternoon. waves calm to 2 feet. 
.thursday night...north winds 10 to 20 knots veering east after
midnight. waves calm to 2 feet. 
.friday...southeast winds 5 to 15 knots increasing to 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 
.saturday...east winds 15 to 25 knots becoming northeast 20 to
30 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202609150800;;466224

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon sep 14 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 29.3 inch low near lake winnipeg tonight moves to southern hudson 
bay at 29.4 inches by tuesday afternoon, bringing 29.7 inch 
troughing across lake superior. 30.2 inch high pressure develops 
over the northern plains on tuesday, strengthening to 30.4 inches as 
it crosses the upper great lakes on wednesday. high pressure ridging 
of 30.2 to 30.3 inches then looks to remain over lake superior 
through the rest of the workweek. 




lsz267-150800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt mon sep 14 2026

...gale warning in effect from 3 am to 9 am edt tuesday...

.rest of tonight...southeast gales to 35 knots becoming south
gales to 40 knots after midnight. a slight chance of
thunderstorms by midnight. showers. waves 3 to 5 feet
occasionally to 7 feet building to 6 to 9 feet occasionally to
11 feet. 
.tuesday...south gales to 35 knots becoming southwest 20 to
30 knots in the afternoon, then becoming west gales to 40 knots
late. a slight chance of showers through early afternoon. waves
subsiding to 4 to 7 feet occasionally to 9 feet, then building to
7 to 10 feet occasionally to 13 feet. 
.tuesday night...west winds 20 to 30 knots becoming northwest
15 to 25 knots after midnight, then diminishing to 10 to 20 knots
late. waves subsiding to 2 to 4 feet. 
.wednesday...northwest winds 5 to 15 knots veering north by mid
afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.thursday...southwest winds 10 to 20 knots veering northwest by
mid afternoon. waves calm to 2 feet. 
.thursday night...northwest winds 10 to 20 knots veering
northeast after midnight. waves calm to 2 feet. 
.friday...southeast winds 5 to 15 knots. a chance of showers.
waves calm to 2 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. 

$$