fzus61 kbuf 140211
glflo 
expires:202609140915;;413119

open lake forecast for lake ontario
national weather service buffalo ny
1011 pm edt sun sep 13 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 high pressure ridge averaging 30.2 inches slides 
eastward across the lower great lakes through monday. the ridge 
should exit eastward on tuesday and allow a warm front to sweep 
northeastward across the lake. a cold front should sweep eastward 
across the lake on wednesday and be followed by a ridge averaging 
30.1 inches and building briefly from the upper great lakes. on 
thursday, the front may shift northward to the lake, but then shift 
back south later in the day as a weak low of 30.0 inches wobbles 
eastward across the central great lakes. behind the low and front, a 
ridge averaging 30.2 inches should build from the upper midwest 
through friday.


loz062-140915-
lake ontario open waters from the niagara river to hamlin beach-
1011 pm edt sun sep 13 2026

.overnight...northwest winds 15 to 20 knots. a chance of
showers late. waves 3 to 5 feet. 
.monday...north winds 5 to 15 knots becoming west. a chance of
showers early. waves 2 to 4 feet subsiding to 1 foot or less. 
.monday night...west winds 10 knots or less becoming south. 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 10 knots or less becoming northeast. a
chance of showers. waves 1 foot or less. 
.thursday...northeast winds 5 to 10 knots becoming north. a
chance of showers during the day. waves 2 feet or less. 
.friday...north winds 5 to 10 knots becoming east. a chance of
showers friday night. waves 2 feet or less. 

$$

fzus61 kbuf 140211
glflo 
expires:202609140915;;413120

open lake forecast for lake ontario
national weather service buffalo ny
1011 pm edt sun sep 13 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 high pressure ridge averaging 30.2 inches slides 
eastward across the lower great lakes through monday. the ridge 
should exit eastward on tuesday and allow a warm front to sweep 
northeastward across the lake. a cold front should sweep eastward 
across the lake on wednesday and be followed by a ridge averaging 
30.1 inches and building briefly from the upper great lakes. on 
thursday, the front may shift northward to the lake, but then shift 
back south later in the day as a weak low of 30.0 inches wobbles 
eastward across the central great lakes. behind the low and front, a 
ridge averaging 30.2 inches should build from the upper midwest 
through friday.


loz063>065-140915-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1011 pm edt sun sep 13 2026

.overnight...northwest winds 15 to 25 knots. a chance of
showers late. waves 3 to 6 feet. 
.monday...north winds 15 to 20 knots becoming northwest and
diminishing to 5 to 10 knots. a chance of showers early. waves
3 to 5 feet subsiding to 1 to 3 feet. 
.monday night...northwest winds 5 to 10 knots becoming south.
waves 2 feet or less. 
.tuesday...south winds 10 to 15 knots increasing to 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
overnight. waves 2 to 4 feet. 
.wednesday...southwest winds 5 to 15 knots becoming northeast
10 knots or less. a chance of showers. waves 1 to 3 feet
subsiding to 1 foot or less. 
.thursday...northeast winds 5 to 15 knots becoming north. a
chance of showers. waves 2 feet or less. 
.friday...north winds 5 to 15 knots becoming east. a chance of
showers friday night. waves 2 feet or less. 

$$

fzus61 kcle 140134
glfle 
expires:202609140815;;411791

open lake forecast for lake erie
national weather service cleveland oh
934 pm edt sun sep 13 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 continues to push south of lake erie as high pressure
of 30.30 inches builds over lake erie on monday. a stationary 
front will set up in the vicinity of the lake beginning tuesday 
night with pressure averaging 30.20 inches through thursday.


lez061-169-140815-
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-
934 pm edt sun sep 13 2026

.rest of tonight...northwest winds 15 to 20 knots becoming north.
a slight chance of showers late this evening. a slight chance of
waterspouts after midnight. waves 3 to 5 feet subsiding to 2 to
4 feet. 
.monday...north winds 10 to 15 knots becoming light and variable.
waves 2 to 4 feet subsiding to 1 foot or less. 
.monday night...east winds 10 knots or less becoming south 10 to
15 knots. waves 2 feet or less. 
.tuesday...south winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday night...south winds 10 to 15 knots becoming southwest.
showers likely overnight. waves 1 to 2 feet. 
.wednesday...southwest winds 10 knots or less becoming northeast.
a chance of showers wednesday night. waves 2 feet or less. 
.thursday...northeast winds 5 to 15 knots. a chance of showers.
waves 2 feet or less. 
.friday...northeast winds 5 to 15 knots becoming east. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 140134
glfle 
expires:202609140815;;411789

open lake forecast for lake erie
national weather service cleveland oh
934 pm edt sun sep 13 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 continues to push south of lake erie as high pressure
of 30.30 inches builds over lake erie on monday. a stationary 
front will set up in the vicinity of the lake beginning tuesday 
night with pressure averaging 30.20 inches through thursday.


lez162-163-140815-
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-
934 pm edt sun sep 13 2026

.rest of tonight...northwest winds 15 to 25 knots becoming north 
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...north winds 5 to 15 knots becoming east less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.monday night...southeast winds 5 to 15 knots becoming south
15 to 20 knots. waves 1 to 3 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 5 to 10 knots becoming west. showers
with a chance of thunderstorms in the evening, then showers
overnight. waves 2 feet or less. 
.wednesday...northwest winds 5 to 10 knots becoming northeast. a
chance of showers. waves 1 foot or less. 
.thursday...north winds 10 to 15 knots becoming northeast. a
chance of showers during the day. waves 2 feet or less. 
.friday...northeast winds 10 to 15 knots becoming east. a chance
of showers friday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 140134
glfle 
expires:202609140815;;411790

open lake forecast for lake erie
national weather service cleveland oh
934 pm edt sun sep 13 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 continues to push south of lake erie as high pressure
of 30.30 inches builds over lake erie on monday. a stationary 
front will set up in the vicinity of the lake beginning tuesday 
night with pressure averaging 30.20 inches through thursday.


lez164>168-140815-
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-
934 pm edt sun sep 13 2026

.rest of tonight...northwest winds 15 to 25 knots becoming north.
a slight chance of waterspouts after midnight. waves 3 to 6 feet.
.monday...north winds 15 to 20 knots diminishing to less than
10 knots in the afternoon. a slight chance of waterspouts early.
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday night...east winds 10 knots or less becoming south and
increasing to 15 to 20 knots overnight. waves 1 to 3 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 5 to 15 knots becoming southwest.
showers. waves 1 to 3 feet. 
.wednesday...southwest winds 5 to 10 knots becoming northeast. a
chance of showers. waves 1 to 2 feet. 
.thursday...northeast winds 10 to 15 knots. a chance of showers.
waves 1 to 3 feet. 
.friday...northeast winds 10 to 15 knots becoming east. waves
2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 140140
glflh 
expires:202609140945;;411923

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 pm edt sun sep 13 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...post-frontal northwest flow will continue to be breezy
through monday morning. high pressure, 30.20 inches, settles in
through the day bringing relaxed flow and dry weather. low
pressure, 29.40 inches, then tracks across ontario tuesday which
elevates wind gusts toward gale force across north and central
lake huron.


lhz361-140945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
940 pm edt sun sep 13 2026

.rest of tonight...northwest winds 15 to 20 knots decreasing to
10 to 15 knots after midnight. waves 3 to 5 feet. 
.monday...northwest winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.monday night...southeast winds 10 to 15 knots becoming south
20 to 25 knots with gusts to 35 knot gales in the late evening
and overnight. showers after midnight. waves 1 to 3 feet building
to 6 to 9 feet in the late evening and overnight. waves
occasionally around 12 feet. 
.tuesday...south winds 20 to 25 knots with gusts to 35 knot gales
becoming southwest 15 to 20 knots with gusts to around 30 knots
in the late morning and afternoon. showers in the morning. waves
6 to 9 feet. waves occasionally around 12 feet. 
.tuesday night...southwest winds 10 to 15 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 in the morning
becoming light and variable. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots backing to the west early
in the evening...then veering to the northwest by midnight. waves
2 feet or less. 
.friday...north winds 5 to 10 knots until afternoon becoming
light and variable...then becoming southeast 5 to 10 knots by
midnight. a chance of showers by midnight. waves 2 feet or less. 


$$

fzus63 kdtx 140140
glfsc 
expires:202609140945;;411927

lake st clair forecast
national weather service detroit/pontiac mi
940 pm edt sun sep 13 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...post-frontal northwest flow will continue to be breezy
through monday morning. high pressure, 30.20 inches, settles in
through the day bringing relaxed flow and dry weather. low
pressure, 29.40 inches, then tracks across ontario tuesday which
elevates wind gusts toward gale force across north and central
lake huron.


lcz460-140945-
lake st clair-
940 pm edt sun sep 13 2026

...small craft advisory in effect until 2 am edt monday...

.rest of tonight...northwest winds 20 to 25 knots becoming north 10
to 15 knots. clear. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight.
.monday...north winds 10 to 15 knots diminishing to 5 to 10 knots in
the late morning and early afternoon...then becoming light and
variable late in the afternoon. sunny. waves 2 feet or less.
.monday night...southeast winds 5 to 10 knots becoming south 20 to
25 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 early 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 west after midnight.
light showers and a chance of thunderstorms ...then light showers
likely after midnight. waves 2 feet or less.
.wednesday...north winds 5 to 10 knots becoming northeast 10 to 15
knots in the evening. partly sunny becoming mostly cloudy. waves 2
feet or less.
.thursday...north winds 10 to 15 knots. partly cloudy. showers
likely. waves 2 feet or less.
.friday...northeast winds 10 to 15 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 140140
glflh 
expires:202609140945;;411924

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 pm edt sun sep 13 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...post-frontal northwest flow will continue to be breezy
through monday morning. high pressure, 30.20 inches, settles in
through the day bringing relaxed flow and dry weather. low
pressure, 29.40 inches, then tracks across ontario tuesday which
elevates wind gusts toward gale force across north and central
lake huron.


lhz362-363-140945-
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-
940 pm edt sun sep 13 2026

...gale watch in effect from late monday night through tuesday
afternoon...

.rest of tonight...northwest winds 20 to 25 knots with gusts to
around 30 knots decreasing to 15 to 20 knots after midnight.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.monday...northwest winds 10 to 15 knots becoming light and
variable. waves 3 to 5 feet subsiding to 1 to 3 feet in the
afternoon. 
.monday night...southeast winds 5 to 10 knots becoming south to
30 knots with gusts to 35 knot gales. a chance of showers after
midnight. waves 2 feet or less building to 8 to 12 feet. waves
occasionally around 15 feet. 
.tuesday...south winds to 30 knots becoming southwest 15 to
20 knots early in the afternoon. gusts to 35 knot gales. showers
likely. waves 10 to 14 feet. waves occasionally around 18 feet. 
.tuesday night...southwest winds 10 to 15 knots veering to the
northwest after midnight. waves 3 to 5 feet. 
.wednesday...north winds 5 to 10 knots. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots increasing to 10 to
15 knots by midnight. 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. 


$$

fzus63 kdtx 140140
glflh 
expires:202609140945;;411925

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 pm edt sun sep 13 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...post-frontal northwest flow will continue to be breezy
through monday morning. high pressure, 30.20 inches, settles in
through the day bringing relaxed flow and dry weather. low
pressure, 29.40 inches, then tracks across ontario tuesday which
elevates wind gusts toward gale force across north and central
lake huron.


lhz462>464-140945-
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-
940 pm edt sun sep 13 2026

.rest of tonight...northwest winds 15 to 20 knots. waves 5 to
7 feet. waves occasionally around 10 feet. 
.monday...northwest winds 10 to 15 knots becoming light and
variable. waves 3 to 5 feet subsiding to 1 to 3 feet late in the
afternoon. 
.monday night...northeast winds 5 to 10 knots becoming southeast
10 to 15 knots by midnight...then becoming south 20 to 25 knots
with gusts to around 30 knots after midnight. waves 1 to 3 feet
building to 5 to 7 feet after midnight. waves occasionally around
10 feet. 
.tuesday...south winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots early in the afternoon. a
chance of showers. waves 6 to 9 feet. waves occasionally around
12 feet. 
.tuesday night...southwest winds 10 to 15 knots decreasing to
5 to 10 knots by midnight...then becoming northwest 10 to
15 knots after midnight. a chance of showers in the evening.
waves 3 to 5 feet subsiding to 1 to 3 feet in the late evening
and overnight. 
.wednesday...north winds 10 to 15 knots decreasing to 5 to
10 knots. a chance of showers late in the evening. waves 1 to
3 feet. 
.thursday...northeast winds 5 to 10 knots becoming north 10 to
15 knots . a chance of showers early in the morning. waves 1 to
3 feet. 
.friday...north winds 10 to 15 knots decreasing to 5 to 10 knots
until early evening...then becoming northeast 10 to 15 knots by
midnight. a chance of showers by midnight. waves 1 to 3 feet. 


$$

fzus63 kmkx 140222
glflm 
expires:202609140930;;413389

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
922 pm cdt sun sep 13 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...

north winds will gradually ease overnight into monday morning, as
high pressure around 30.3 inches moves across the lake. 

winds will then increase and veer to south southeast monday 
afternoon and night, becoming south into tuesday, as low pressure 
around 29.3 inches moves from southern manitoba through northern 
ontario. gales are expected monday night into tuesday morning. a 
gale warning has been issued for lake michigan.

periods of showers and thunderstorms will accompany the 
developing low from as early as monday evening into tuesday. winds
will trend north to northeast tuesday night into wednesday, as 
high pressure around 30.3 inches moves into the region. north to
northeast winds may linger into the rest of the week, as the high
slowly moves to the east of the region.


lmz366-565-567-669-671-673-675-868-870-872-874-876-140930-
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 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 pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
922 pm cdt sun sep 13 2026

sturgeon bay wi to point betsie mi south to winthrop harbor il to
south haven mi...

...gale warning in effect from monday evening through early 
tuesday morning...

.rest of tonight...northwest winds 10 to 20 kt becoming north
10 to 15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.monday...east winds 10 to 15 kt becoming southeast late in the
morning, then becoming south 10 to 20 kt early in the afternoon
increasing to 15 to 25 kt late. waves 2 to 4 ft building to 3 to
5 ft. 
.monday night...south winds to 30 kt increasing to gales to
40 kt. chance of showers 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 30 kt. showers
likely in the morning, then chance of showers in the afternoon.
waves 10 to 14 ft occasionally to 18 ft subsiding to 7 to 10 ft
occasionally to 13 ft. 
.tuesday night...northwest winds 10 to 20 kt becoming north.
chance of showers in the evening. 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. chance of showers. waves 3 to 5 ft. 
.wednesday night...northeast winds 10 to 20 kt becoming east
10 to 15 kt. showers likely with a chance of thunderstorms. waves
1 to 3 ft. 
.thursday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. chance of showers. waves 2 to 4 ft. 
.friday...east winds 10 to 20 kt becoming southeast. chance of
showers. waves 2 to 4 ft.  

$$

fzus63 kmkx 140222
glflm 
expires:202609140930;;413388

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
922 pm cdt sun sep 13 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...

north winds will gradually ease overnight into monday morning, as
high pressure around 30.3 inches moves across the lake. 

winds will then increase and veer to south southeast monday 
afternoon and night, becoming south into tuesday, as low pressure 
around 29.3 inches moves from southern manitoba through northern 
ontario. gales are expected monday night into tuesday morning. a 
gale warning has been issued for lake michigan.

periods of showers and thunderstorms will accompany the 
developing low from as early as monday evening into tuesday. winds
will trend north to northeast tuesday night into wednesday, as 
high pressure around 30.3 inches moves into the region. north to
northeast winds may linger into the rest of the week, as the high
slowly moves to the east of the region.


lmz261-362-364-563-140930-
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-
922 pm cdt sun sep 13 2026

sturgeon bay wi to point betsie mi north...

...gale warning in effect from monday evening through early 
tuesday afternoon...

.rest of tonight...northwest winds 15 to 25 kt becoming north
10 to 15 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.monday...northwest winds 5 to 10 kt backing to southwest late in
the morning, then becoming south early in the afternoon becoming
10 to 20 kt late. waves 1 to 2 ft building to 1 to 3 ft. 
.monday night...south winds to 30 kt increasing to gales to
40 kt. chance of showers in the evening, then showers overnight.
waves 4 to 6 ft occasionally to 8 ft building to 10 to 14 ft
occasionally to 18 ft. 
.tuesday...southwest gales to 40 kt diminishing to 30 kt. chance 
of showers in the morning. waves 10 to 14 ft occasionally to 18 ft
subsiding to 7 to 10 ft occasionally to 13 ft. 
.tuesday night...northwest winds to 30 kt becoming north 10 to
20 kt overnight. waves 4 to 6 ft occasionally to 8 ft subsiding
to 2 to 4 ft. 
.wednesday...northeast winds 5 to 10 kt increasing to 10 to
15 kt. waves 1 to 2 ft. 
.wednesday night...northeast winds 10 to 15 kt becoming east 5 to
10 kt. waves 1 ft or less. 
.thursday...northeast winds 10 to 15 kt becoming north. waves
1 to 2 ft. 
.friday...east winds 10 to 15 kt becoming southeast. chance of
showers. waves 1 to 2 ft.  

$$

fzus63 kmkx 140222
glflm 
expires:202609140930;;413390

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
922 pm cdt sun sep 13 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...

north winds will gradually ease overnight into monday morning, as
high pressure around 30.3 inches moves across the lake. 

winds will then increase and veer to south southeast monday 
afternoon and night, becoming south into tuesday, as low pressure 
around 29.3 inches moves from southern manitoba through northern 
ontario. gales are expected monday night into tuesday morning. a 
gale warning has been issued for lake michigan.

periods of showers and thunderstorms will accompany the 
developing low from as early as monday evening into tuesday. winds
will trend north to northeast tuesday night into wednesday, as 
high pressure around 30.3 inches moves into the region. north to
northeast winds may linger into the rest of the week, as the high
slowly moves to the east of the region.


lmz080-777-779-878-140930-
lake michigan from michigan city in to st. joseph mi 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 st. joseph to south haven mi 5 nm offshore to
mid lake-
922 pm cdt sun sep 13 2026

winthrop harbor il to south haven mi south...

...gale warning in effect from monday evening through early 
tuesday morning...

.rest of tonight...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 3 to 5 ft. 
.monday...east winds 5 to 10 kt becoming southeast 10 to 15 kt
late in the morning, then increasing to 10 to 20 kt early in the
afternoon becoming southeast 10 to 20 kt late. waves 2 to 4 ft. 
.monday night...southeast winds to 30 kt becoming south gales to
35 kt. chance of showers and thunderstorms overnight. waves 4 to
6 ft occasionally to 8 ft building to 7 to 10 ft occasionally to
13 ft. 
.tuesday...southwest winds to 30 kt diminishing to 15 to 25 kt.
chance of showers in the morning, then showers likely in the
afternoon. waves 6 to 9 ft occasionally to 12 ft subsiding to
4 to 6 ft occasionally to 8 ft. 
.tuesday night...northwest winds 10 to 15 kt becoming north.
showers likely in the evening, then chance of showers overnight.
waves 1 to 3 ft. 
.wednesday...northeast winds 10 to 15 kt. chance of showers.
waves 2 to 4 ft. 
.wednesday night...northeast winds 10 to 15 kt. chance of
showers. waves 1 to 3 ft. 
.thursday...northeast winds 10 to 15 kt becoming north. waves
1 to 3 ft. 
.friday...east winds 10 to 20 kt diminishing to 10 to 15 kt.
chance of showers. waves 2 to 4 ft.  

$$

fzus63 kmqt 140201
glfls 
expires:202609140800;;412288

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun sep 13 2026

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

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

.synopsis...

30.1 inch ridging over lake superior strengthens to 30.2 inches 
tonight into monday. a low around 29.3 inches skirts by lake 
winnipeg into northern ontario monday night into early tuesday, 
bringing 29.7 inch troughing over the lake. 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 then looks to remain over the region through the rest of 
the workweek. 




lsz267-140800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt sun sep 13 2026

...gale watch in effect from monday evening through tuesday
evening...

.rest of tonight...northwest winds 15 to 25 knots diminishing to
10 to 20 knots late. waves 3 to 6 feet occasionally to 8 feet
subsiding to 2 to 4 feet. 
.monday...west winds 5 to 15 knots backing south in the
afternoon, then backing southeast late. waves subsiding to calm
to 2 feet. 
.monday night...south winds 20 to 30 knots increasing to gales to
40 knots after midnight. showers. waves building to 7 to 10 feet
occasionally to 13 feet. 
.tuesday...southwest gales to 35 knots becoming west 20 to
30 knots by mid afternoon. 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
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.wednesday...northwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.thursday...west winds 10 to 20 knots veering northwest. waves
calm to 2 feet. 
.friday...southeast winds 5 to 15 knots becoming south 10 to
20 knots. a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 140201
glfls 
expires:202609140800;;412283

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun sep 13 2026

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

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

.synopsis...

30.1 inch ridging over lake superior strengthens to 30.2 inches 
tonight into monday. a low around 29.3 inches skirts by lake 
winnipeg into northern ontario monday night into early tuesday, 
bringing 29.7 inch troughing over the lake. 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 then looks to remain over the region through the rest of 
the workweek. 




lsz162-140800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt sun sep 13 2026 /901 pm cdt sun sep 13 2026/

...gale watch in effect from late monday night through tuesday
afternoon...

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

$$

fzus63 kmqt 140201
glfls 
expires:202609140800;;412284

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun sep 13 2026

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

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

.synopsis...

30.1 inch ridging over lake superior strengthens to 30.2 inches 
tonight into monday. a low around 29.3 inches skirts by lake 
winnipeg into northern ontario monday night into early tuesday, 
bringing 29.7 inch troughing over the lake. 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 then looks to remain over the region through the rest of 
the workweek. 




lsz263-140800-
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 sun sep 13 2026

...gale watch in effect from monday evening through tuesday
evening...

.rest of tonight...northwest winds 5 to 15 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.monday...south winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon, then becoming southeast 15 to 25 knots late. a
slight chance of showers by mid afternoon. waves calm to 2 feet. 
.monday night...south gales to 35 knots veering southwest late.
showers and a slight chance of thunderstorms through midnight,
then a chance of showers after midnight. waves building to 5 to
8 feet occasionally to 10 feet. 
.tuesday...west gales to 45 knots. waves building to 10 to
14 feet occasionally to 18 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.tuesday night...west winds 15 to 25 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing south by mid
afternoon. waves calm to 2 feet. 
.wednesday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots backing southeast. waves
calm to 2 feet. 
.friday...south winds 5 to 15 knots increasing to 10 to 20 knots.
a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 140201
glfls 
expires:202609140800;;412285

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun sep 13 2026

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

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

.synopsis...

30.1 inch ridging over lake superior strengthens to 30.2 inches 
tonight into monday. a low around 29.3 inches skirts by lake 
winnipeg into northern ontario monday night into early tuesday, 
bringing 29.7 inch troughing over the lake. 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 then looks to remain over the region through the rest of 
the workweek. 




lsz264-140800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt sun sep 13 2026

...gale watch in effect from monday evening through tuesday
evening...

.rest of tonight...northwest winds 5 to 15 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.monday...southwest winds 5 to 15 knots backing south in the
afternoon, then becoming southeast 20 to 30 knots late. waves
building to 2 to 4 feet. 
.monday night...southeast winds 20 to 30 knots becoming south
gales to 35 knots after midnight. showers. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.tuesday...southwest gales to 45 knots veering west by mid
afternoon. waves building to 10 to 14 feet occasionally to
18 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. 
.tuesday night...west winds 20 to 30 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.wednesday...northwest winds less than 10 knots backing south by
mid afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots backing southeast. waves
calm to 2 feet. 
.friday...south winds 5 to 15 knots increasing to 10 to 20 knots.
a chance of showers. waves calm to 2 feet. 

$$

fzus63 kmqt 140201
glfls 
expires:202609140800;;412286

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun sep 13 2026

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

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

.synopsis...

30.1 inch ridging over lake superior strengthens to 30.2 inches 
tonight into monday. a low around 29.3 inches skirts by lake 
winnipeg into northern ontario monday night into early tuesday, 
bringing 29.7 inch troughing over the lake. 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 then looks to remain over the region through the rest of 
the workweek. 




lsz265-140800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt sun sep 13 2026

...gale watch in effect from monday evening through tuesday
evening...

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

$$

fzus63 kmqt 140201
glfls 
expires:202609140800;;412287

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun sep 13 2026

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

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

.synopsis...

30.1 inch ridging over lake superior strengthens to 30.2 inches 
tonight into monday. a low around 29.3 inches skirts by lake 
winnipeg into northern ontario monday night into early tuesday, 
bringing 29.7 inch troughing over the lake. 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 then looks to remain over the region through the rest of 
the workweek. 




lsz266-140800-
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 sun sep 13 2026

...gale watch in effect from monday evening through tuesday
evening...

.rest of tonight...northwest winds 15 to 25 knots diminishing to
5 to 15 knots. waves 3 to 6 feet occasionally to 8 feet subsiding
to 1 to 3 feet. 
.monday...southwest winds 5 to 15 knots becoming south 10 to
20 knots in the afternoon, then becoming southeast 20 to 30 knots
late. waves subsiding to calm to 2 feet, then building to 2 to
4 feet. 
.monday night...south gales to 40 knots. a slight chance of
thunderstorms through midnight. showers. waves building to 8 to
11 feet occasionally to 14 feet. 
.tuesday...southwest gales to 40 knots veering west by mid
afternoon. waves subsiding to 6 to 9 feet occasionally to
11 feet, then building to 9 to 12 feet occasionally to 15 feet. 
.tuesday night...west winds 20 to 30 knots becoming northwest
10 to 20 knots after midnight. waves subsiding to 1 to 3 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
southwest after midnight. waves calm to 2 feet. 
.thursday...west winds 10 to 20 knots veering north. waves calm
to 2 feet. 
.friday...southeast winds 5 to 15 knots becoming south 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 

$$