fzus61 kbuf 091858
glflo 
expires:202609092115;;647848

open lake forecast for lake ontario
national weather service buffalo ny
258 pm edt wed sep 9 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 30.2 inch ridge of high pressure over the east coast 
will slide east further into the atlantic today. a cold front will 
cross the lake while averaging 29.8 inches tonight. behind the cold 
front, another ridge averaging 30.0 inches will build from the 
western great lakes through friday and then exit toward new england 
on saturday. a warm front should sweep northeastward across lake 
ontario saturday night and be followed by a cold front sweeping 
eastward across the lake later on sunday.


loz062-092115-
lake ontario open waters from the niagara river to hamlin beach-
258 pm edt wed sep 9 2026

.this afternoon...southwest winds 10 to 15 knots increasing to
15 to 20 knots. showers. waves 1 to 3 feet building to 2 to
4 feet. 
.tonight...southwest winds 15 to 20 knots becoming west. showers
likely early, then a chance of showers late in the evening. waves
3 to 5 feet subsiding to 2 to 4 feet. 
.thursday...west winds 10 to 15 knots. waves 2 to 4 feet. 
.thursday night...northwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...northwest winds 10 knots or less becoming south. waves
2 feet or less. 
.saturday...south winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.sunday...west winds 5 to 15 knots becoming northwest. waves
1 foot or less. 

$$

fzus61 kbuf 091858
glflo 
expires:202609092115;;647849

open lake forecast for lake ontario
national weather service buffalo ny
258 pm edt wed sep 9 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 30.2 inch ridge of high pressure over the east coast 
will slide east further into the atlantic today. a cold front will 
cross the lake while averaging 29.8 inches tonight. behind the cold 
front, another ridge averaging 30.0 inches will build from the 
western great lakes through friday and then exit toward new england 
on saturday. a warm front should sweep northeastward across lake 
ontario saturday night and be followed by a cold front sweeping 
eastward across the lake later on sunday.


loz063>065-092115-
lake ontario open waters from hamlin beach to the saint lawrence
river-
258 pm edt wed sep 9 2026

.this afternoon...south winds 15 to 20 knots. showers early
, then showers with a chance of thunderstorms late.
waves 1 to 3 feet building to 2 to 4 feet. 
.tonight...southwest winds 15 to 20 knots becoming west. showers
with a chance of thunderstorms early, then showers likely late in
the evening. a chance of showers after midnight. waves 2 to
4 feet building to 3 to 5 feet. 
.thursday...west winds 15 to 20 knots. waves 3 to 6 feet. 
.thursday night...northwest winds 15 to 20 knots diminishing to
5 to 15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.friday...northwest winds 5 to 10 knots becoming south. waves
2 feet or less. 
.saturday...south winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.sunday...southwest winds 10 to 15 knots becoming northwest.
waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 091856
glfle 
expires:202609100215;;647777

open lake forecast for lake erie
national weather service cleveland oh
256 pm edt wed sep 9 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 trough averaging 29.90 inches moves across lake erie this
evening followed by a cold front late tonight. this front will
stall south of the lake thursday morning before moving south in
the afternoon. high pressure 30.10 inches builds in thursday night 
into friday, weakening to 30.00 inches for saturday as an active
frontal boundary sets up over the southern great lakes. 


lez164>167-100215-
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-
256 pm edt wed sep 9 2026

...severe thunderstorm watch 665 in effect until 11 pm edt this
evening...

.tonight...southwest winds 15 to 20 knots becoming west 10 to
15 knots. showers likely with a chance of thunderstorms early.
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.thursday...northwest winds 5 to 15 knots. waves 1 to 2 feet. 
.thursday night...north winds 5 to 10 knots becoming northeast.
waves 1 to 2 feet. 
.friday...east winds 10 knots or less becoming northeast. waves
1 foot or less. 
.friday night...east winds 5 to 10 knots becoming southeast.
waves 2 feet or less. 
.saturday...south winds 5 to 10 knots becoming southwest. waves
1 to 3 feet. 
.sunday...west winds 5 to 15 knots becoming east. waves 1 to
3 feet building to 2 to 4 feet. 
.monday...east winds 5 to 15 knots becoming south 15 to 20 knots.
waves 2 to 4 feet subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 091856
glfle 
expires:202609100215;;647776

open lake forecast for lake erie
national weather service cleveland oh
256 pm edt wed sep 9 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 trough averaging 29.90 inches moves across lake erie this
evening followed by a cold front late tonight. this front will
stall south of the lake thursday morning before moving south in
the afternoon. high pressure 30.10 inches builds in thursday night 
into friday, weakening to 30.00 inches for saturday as an active
frontal boundary sets up over the southern great lakes. 


lez162-163-100215-
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-
256 pm edt wed sep 9 2026

.tonight...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers and thunderstorms early. waves
2 feet or less. 
.thursday...northwest winds 5 to 15 knots diminishing to less
than 10 knots. waves 1 foot or less. 
.thursday night...north winds 5 to 10 knots becoming northeast.
waves 1 foot or less. 
.friday...northeast winds 5 to 10 knots becoming east. waves
1 foot or less. 
.friday night...east winds 5 to 10 knots becoming southeast.
waves 1 foot or less. 
.saturday...south winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.sunday...west winds 10 knots or less becoming east. waves 1 foot
or less building to 1 to 3 feet. 
.monday...southeast winds 10 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 091856
glfle 
expires:202609100215;;647778

open lake forecast for lake erie
national weather service cleveland oh
256 pm edt wed sep 9 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 trough averaging 29.90 inches moves across lake erie this
evening followed by a cold front late tonight. this front will
stall south of the lake thursday morning before moving south in
the afternoon. high pressure 30.10 inches builds in thursday night 
into friday, weakening to 30.00 inches for saturday as an active
frontal boundary sets up over the southern great lakes. 


lez061-168-169-100215-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
256 pm edt wed sep 9 2026

...severe thunderstorm watch 665 in effect until 11 pm edt this
evening...

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

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 091345
glflh 
expires:202609092145;;166324

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am edt wed sep 9 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, will track across northern
ontario today, driving a slow moving cold front across the great
lakes region. this system will provide showers and few
thunderstorms to the lakes. high pressure will expand into the
region from the west thursday into friday.


lhz462>464-092145-
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-
945 am edt wed sep 9 2026

.rest of today...southwest winds 10 to 15 knots increasing to
15 to 20 knots with gusts to around 30 knots in the afternoon.
showers likely late in the morning...then a chance of showers in
the afternoon. waves 2 to 4 feet building to 3 to 5 feet in the
afternoon. 
.tonight...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late evening and overnight. waves 2 to 4 feet. 
.thursday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 
.thursday night...north winds 5 to 10 knots. waves 2 feet or
less. 
.friday...west winds 5 to 10 knots in the morning becoming light
and variable...then becoming southeast 5 to 10 knots late in the
afternoon becoming south 10 to 15 knots. waves 1 to 3 feet. 
.saturday...south winds 10 to 15 knots becoming southwest 5 to
10 knots by midnight. waves 2 to 4 feet. 
.sunday...west winds 5 to 10 knots veering to the northeast by
midnight. a chance of. waves 1 to 3 feet building to 2 to 4 feet
by midnight. 


$$

fzus63 kdtx 091345
glflh 
expires:202609092145;;166322

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am edt wed sep 9 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, will track across northern
ontario today, driving a slow moving cold front across the great
lakes region. this system will provide showers and few
thunderstorms to the lakes. high pressure will expand into the
region from the west thursday into friday.


lhz361-092145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
945 am edt wed sep 9 2026

.rest of today...southwest winds 10 to 15 knots becoming west
15 to 20 knots late in the afternoon. a chance of showers late in
the morning. waves 1 to 3 feet building to 3 to 5 feet late in
the afternoon. 
.tonight...west winds 10 to 15 knots becoming northwest 15 to
20 knots with gusts to around 30 knots after midnight. waves 3 to
5 feet. 
.thursday...northwest winds 10 to 15 knots. waves 2 to 4 feet. 
.thursday night...northwest winds 10 to 15 knots becoming light
and variable. waves 1 to 3 feet. 
.friday...south winds 5 to 10 knots backing to the southeast late
in the afternoon...then becoming south 10 to 15 knots late in the
evening. waves 2 feet or less building to 2 to 4 feet late in the
evening. 
.saturday...south winds 10 to 15 knots becoming southwest 5 to
10 knots early in the evening...then veering to the northwest by
midnight. a chance of showers until early evening. waves 2 to
4 feet subsiding to 1 to 3 feet . 
.sunday...west winds 5 to 10 knots. a chance of showers by
midnight. waves 1 to 3 feet building to 2 to 4 feet . 


$$

fzus63 kdtx 091345
glfsc 
expires:202609092145;;166329

lake st clair forecast
national weather service detroit/pontiac mi
945 am edt wed sep 9 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, will track across northern
ontario today, driving a slow moving cold front across the great
lakes region. this system will provide showers and few
thunderstorms to the lakes. high pressure will expand into the
region from the west thursday into friday.


lcz460-092145-
lake st clair-
945 am edt wed sep 9 2026

.rest of today...southwest winds 10 to 15 knots. mostly cloudy. a
chance of light showers late in the morning...then light showers
likely in the afternoon. waves 2 feet or less.
.tonight...west winds 10 to 15 knots diminishing to 5 to 10 knots
early in the morning. partly cloudy. a chance of showers and
thunderstorms early in the evening. waves 2 feet or less.
.thursday...northwest winds 5 to 10 knots. partly sunny. waves 2
feet or less.
.thursday night...north winds 5 to 10 knots. mostly clear. waves 2
feet or less.
.friday...light and variable winds becoming southeast 5 to 10 knots
in the afternoon and evening. sunny becoming mostly clear. waves 2
feet or less.
.saturday...south winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.sunday...east winds 5 to 10 knots. partly cloudy. waves 2 feet or
less.

$$

fzus63 kdtx 091345
glflh 
expires:202609092145;;166323

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am edt wed sep 9 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, will track across northern
ontario today, driving a slow moving cold front across the great
lakes region. this system will provide showers and few
thunderstorms to the lakes. high pressure will expand into the
region from the west thursday into friday.


lhz362-363-092145-
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-
945 am edt wed sep 9 2026

.rest of today...southwest winds 15 to 20 knots with gusts to
around 30 knots decreasing to 10 to 15 knots with gusts to around
30 knots late in the afternoon. showers likely late in the
morning...then a chance of showers in the afternoon. waves 4 to
6 feet. waves occasionally around 8 feet. 
.tonight...west winds 10 to 15 knots veering to the northwest
after midnight. a chance of waterspouts in the evening. waves
3 to 5 feet. 
.thursday...northwest winds 10 to 15 knots. waves 2 to 4 feet. 
.thursday night...northwest winds 10 to 15 knots decreasing to
northwest after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.friday...light and variable winds becoming southwest 5 to
10 knots late in the morning...then becoming south 10 to 15 knots
late in the afternoon. waves 2 feet or less building to 2 to
4 feet late in the afternoon. 
.saturday...south winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and early afternoon...then
decreasing to 10 to 15 knots early in the evening becoming west
5 to 10 knots by midnight. a chance of showers early in the
evening. waves 3 to 5 feet. 
.sunday...northwest winds 5 to 10 knots. a chance of showers by
midnight. waves 1 to 3 feet building to 2 to 4 feet . 


$$

fzus63 kmkx 091315
glflm 
expires:202609092130;;165822

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
815 am cdt wed sep 9 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure near 28.9 inches will continue across the southern
hudson bay through today, gradually pulling a cold front across
the open waters of lake michigan. the passing boundary will bring
a west-northwest wind shift across lake michigan by late 
afternoon. shower & embedded thunderstorm chances will continue 
along/ahead of the passing front, with severe weather not 
expected. high pressure near 30.1 inches will build in from the 
northern great plains tonight, lingering through thursday night & 
bringing light and variable winds to the waters.

a new area of low pressure near 29.2 inches will shift from
central canada toward the hudson bay friday morning through the
day saturday, bringing increasing south-southwest winds followed
by a west-northwest wind shift behind a cold front. occasional 
wind gusts near gale force are possible during this time frame, 
though whether or not they will be widespread enough to warrant 
headlines remains uncertain. trends will continue to be monitored
through the end of this week. periods of showers and storms will 
accompany the approaching/passing front, with widespread severe 
weather not currently anticipated.

high pressure near 30.1 inches will shift from the northern great
plains across lake michigan saturday night through sunday night,
bringing light and variable winds. the next area of low pressure 
& cold front will approach from the west early next week, bringing
increasing winds & additional chances for showers and storms. 
depending on the strength of the low and front, periods of gales &
some stronger storms could be possible. will be providing
additional details as this portion of the period draws closer. 


lmz261-362-364-366-563-565-567-868-092130-
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-
815 am cdt wed sep 9 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 10 to 20 kt increasing to 30 kt.
chance of showers this morning. waves 3 to 5 ft. 
.tonight...west winds to 30 kt becoming northwest 15 to 25 kt,
then diminishing to 10 to 20 kt late. waves 3 to 5 ft. 
.thursday...northwest winds 10 to 20 kt. waves 1 to 3 ft
subsiding to 1 to 2 ft. 
.thursday night...southeast winds 10 to 15 kt becoming south.
waves 1 to 2 ft. 
.friday...southwest winds 15 to 25 kt becoming south to 30 kt.
waves 1 to 3 ft building to 4 to 6 ft occasionally to 8 ft. 
.friday night...south winds to 30 kt. waves 4 to 7 ft
occasionally to 9 ft. 
.saturday...southwest winds to 30 kt. waves 4 to 7 ft
occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.sunday...north winds 10 to 15 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 091315
glflm 
expires:202609092130;;165823

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
815 am cdt wed sep 9 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure near 28.9 inches will continue across the southern
hudson bay through today, gradually pulling a cold front across
the open waters of lake michigan. the passing boundary will bring
a west-northwest wind shift across lake michigan by late 
afternoon. shower & embedded thunderstorm chances will continue 
along/ahead of the passing front, with severe weather not 
expected. high pressure near 30.1 inches will build in from the 
northern great plains tonight, lingering through thursday night & 
bringing light and variable winds to the waters.

a new area of low pressure near 29.2 inches will shift from
central canada toward the hudson bay friday morning through the
day saturday, bringing increasing south-southwest winds followed
by a west-northwest wind shift behind a cold front. occasional 
wind gusts near gale force are possible during this time frame, 
though whether or not they will be widespread enough to warrant 
headlines remains uncertain. trends will continue to be monitored
through the end of this week. periods of showers and storms will 
accompany the approaching/passing front, with widespread severe 
weather not currently anticipated.

high pressure near 30.1 inches will shift from the northern great
plains across lake michigan saturday night through sunday night,
bringing light and variable winds. the next area of low pressure 
& cold front will approach from the west early next week, bringing
increasing winds & additional chances for showers and storms. 
depending on the strength of the low and front, periods of gales &
some stronger storms could be possible. will be providing
additional details as this portion of the period draws closer. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-092130-
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-
815 am cdt wed sep 9 2026

sheboygan wi to pentwater mi south...

.rest of today...southwest winds 10 to 20 kt. chance of showers
and slight chance of thunderstorms this morning. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.tonight...southwest winds 10 to 20 kt veering to northwest.
waves 2 to 4 ft. 
.thursday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft. 
.thursday night...northeast winds 10 to 15 kt veering to
southeast 5 to 10 kt. waves 1 to 3 ft. 
.friday...south winds 10 to 20 kt increasing to 30 kt in the
afternoon. waves 1 to 3 ft building to 3 to 5 ft. 
.friday night...south winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.saturday...south winds to 30 kt becoming southwest. waves 4 to
6 ft occasionally to 8 ft. 
.sunday...north winds 10 to 15 kt. waves 1 to 3 ft.  

$$

fzus63 kmqt 091401
glfls 
expires:202609092000;;166756

open lake forecast for lake superior
national weather service marquette mi
1001 am edt wed sep 9 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 hudson bay continues to deepen to around 29.1 
inches by this afternoon, then moves into northern quebec by early 
thursday. an associated cold front moves through today, shifting 
winds over to the west with widespread gales through the daytime 
hours. ridging to 30.0 inches and subsequent calmer conditions 
follow from early thursday morning until friday morning, when a 
trough averaging 29.5 inches tracks from the great plains north 
toward hudson bay. a cold front passes through on saturday with. 
ridging in its wake reaching 30.0 inches by sunday.




lsz267-092000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt wed sep 9 2026

...gale warning in effect from 3 pm edt this afternoon through
late tonight...

.rest of today...west winds 20 to 30 knots increasing to gales to
35 knots late. waves 3 to 6 feet occasionally to 8 feet building
to 8 to 11 feet occasionally to 14 feet. 
.tonight...northwest gales to 40 knots diminishing to 20 to
30 knots late. waves subsiding to 6 to 9 feet occasionally to
11 feet. 
.thursday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.thursday night...west winds 5 to 15 knots becoming south 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.friday...south winds 15 to 25 knots. waves building to 2 to
4 feet. 
.friday night...south winds 20 to 30 knots. a chance of showers
after midnight. waves building to 4 to 7 feet occasionally to
9 feet. 
.saturday...west winds 20 to 30 knots diminishing to 15 to
25 knots. showers likely. waves subsiding to 2 to 4 feet. 
.sunday...northwest winds 10 to 20 knots. waves subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 091401
glfls 
expires:202609092000;;166755

open lake forecast for lake superior
national weather service marquette mi
1001 am edt wed sep 9 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 hudson bay continues to deepen to around 29.1 
inches by this afternoon, then moves into northern quebec by early 
thursday. an associated cold front moves through today, shifting 
winds over to the west with widespread gales through the daytime 
hours. ridging to 30.0 inches and subsequent calmer conditions 
follow from early thursday morning until friday morning, when a 
trough averaging 29.5 inches tracks from the great plains north 
toward hudson bay. a cold front passes through on saturday with. 
ridging in its wake reaching 30.0 inches by sunday.




lsz266-092000-
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 am edt wed sep 9 2026

...gale warning in effect through this evening...

.rest of today...west gales to 40 knots. waves 6 to 9 feet
occasionally to 11 feet building to 9 to 12 feet occasionally to
15 feet, then subsiding to 8 to 11 feet occasionally to 14 feet. 
.tonight...northwest gales to 35 knots diminishing to 15 to
25 knots. waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.thursday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. waves subsiding to calm to 2 feet. 
.thursday night...south winds 5 to 15 knots increasing to 15 to
25 knots after midnight. waves building to 1 to 3 feet. 
.friday...south winds 20 to 30 knots. waves building to 3 to
5 feet occasionally to 7 feet. 
.friday night...south gales to 40 knots. a chance of
thunderstorms. showers after midnight. waves building to 4 to
8 feet occasionally to 10 feet. 
.saturday...west winds 20 to 30 knots. a chance of showers. waves
subsiding to 2 to 4 feet. 
.sunday...northwest winds 10 to 20 knots increasing to 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

$$

fzus63 kmqt 091401
glfls 
expires:202609092000;;166754

open lake forecast for lake superior
national weather service marquette mi
1001 am edt wed sep 9 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 hudson bay continues to deepen to around 29.1 
inches by this afternoon, then moves into northern quebec by early 
thursday. an associated cold front moves through today, shifting 
winds over to the west with widespread gales through the daytime 
hours. ridging to 30.0 inches and subsequent calmer conditions 
follow from early thursday morning until friday morning, when a 
trough averaging 29.5 inches tracks from the great plains north 
toward hudson bay. a cold front passes through on saturday with. 
ridging in its wake reaching 30.0 inches by sunday.




lsz265-092000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt wed sep 9 2026

...gale warning in effect through this evening...

.rest of today...west gales to 45 knots. waves 4 to 7 feet
occasionally to 9 feet building to 7 to 10 feet occasionally to
13 feet, then subsiding to 6 to 9 feet occasionally to 11 feet. 
.tonight...west gales to 35 knots veering northwest after
midnight, then diminishing to 15 to 25 knots late. waves
subsiding to 2 to 4 feet. 
.thursday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.thursday night...south winds 5 to 15 knots increasing to 15 to
25 knots after midnight. waves calm to 2 feet. 
.friday...south winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves building to 2 to 4 feet. 
.friday night...south winds 20 to 30 knots increasing to gales to
35 knots after midnight. a chance of showers through midnight. a
chance of thunderstorms. showers after midnight. waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.saturday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to 1 to 3 feet. 
.sunday...northwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of showers. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 

$$

fzus63 kmqt 091401
glfls 
expires:202609092000;;166753

open lake forecast for lake superior
national weather service marquette mi
1001 am edt wed sep 9 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 hudson bay continues to deepen to around 29.1 
inches by this afternoon, then moves into northern quebec by early 
thursday. an associated cold front moves through today, shifting 
winds over to the west with widespread gales through the daytime 
hours. ridging to 30.0 inches and subsequent calmer conditions 
follow from early thursday morning until friday morning, when a 
trough averaging 29.5 inches tracks from the great plains north 
toward hudson bay. a cold front passes through on saturday with. 
ridging in its wake reaching 30.0 inches by sunday.




lsz264-092000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt wed sep 9 2026

...gale warning in effect until 10 pm edt this evening...

.rest of today...west gales to 45 knots. waves 6 to 9 feet
occasionally to 11 feet building to 9 to 12 feet occasionally to
15 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. 
.tonight...northwest gales to 35 knots diminishing to 10 to
20 knots. waves subsiding to 2 to 4 feet. 
.thursday...northwest winds 5 to 15 knots backing southwest late.
waves subsiding to calm to 2 feet. 
.thursday night...south winds 5 to 15 knots increasing to 15 to
25 knots after midnight. waves building to 1 to 3 feet. 
.friday...south winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. a slight chance of showers by mid
afternoon. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 
.friday night...south winds 15 to 25 knots. showers and a chance
of thunderstorms. waves building to 3 to 5 feet occasionally to
7 feet. 
.saturday...west gales to 35 knots diminishing to 20 to 30 knots.
waves subsiding to 2 to 4 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...west winds 5 to 15 knots increasing to 10 to 20 knots.
waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 091401
glfls 
expires:202609092000;;166752

open lake forecast for lake superior
national weather service marquette mi
1001 am edt wed sep 9 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 hudson bay continues to deepen to around 29.1 
inches by this afternoon, then moves into northern quebec by early 
thursday. an associated cold front moves through today, shifting 
winds over to the west with widespread gales through the daytime 
hours. ridging to 30.0 inches and subsequent calmer conditions 
follow from early thursday morning until friday morning, when a 
trough averaging 29.5 inches tracks from the great plains north 
toward hudson bay. a cold front passes through on saturday with. 
ridging in its wake reaching 30.0 inches by sunday.




lsz263-092000-
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 am edt wed sep 9 2026

...gale warning in effect until 10 pm edt this evening...

.rest of today...west gales to 40 knots. waves 6 to 9 feet
occasionally to 11 feet building to 8 to 11 feet occasionally to
14 feet, then subsiding to 6 to 9 feet occasionally to 11 feet. 
.tonight...west gales to 35 knots becoming northwest 20 to
30 knots after midnight, then diminishing to 10 to 20 knots late.
waves subsiding to 1 to 3 feet. 
.thursday...northwest winds 5 to 15 knots becoming southwest
10 to 20 knots in the afternoon. waves subsiding to calm to
2 feet. 
.thursday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves building to 2 to 4 feet. 
.friday...south gales to 35 knots. a slight chance of showers by
mid afternoon. waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 2 to 4 feet. 
.friday night...south winds 20 to 30 knots veering southwest
after midnight. showers and a chance of thunderstorms. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet. 
.saturday...west winds 20 to 30 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 1 to 3 feet. 
.sunday...northwest winds 10 to 20 knots becoming east 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

$$

fzus63 kmqt 091401
glfls 
expires:202609092000;;166751

open lake forecast for lake superior
national weather service marquette mi
1001 am edt wed sep 9 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 hudson bay continues to deepen to around 29.1 
inches by this afternoon, then moves into northern quebec by early 
thursday. an associated cold front moves through today, shifting 
winds over to the west with widespread gales through the daytime 
hours. ridging to 30.0 inches and subsequent calmer conditions 
follow from early thursday morning until friday morning, when a 
trough averaging 29.5 inches tracks from the great plains north 
toward hudson bay. a cold front passes through on saturday with. 
ridging in its wake reaching 30.0 inches by sunday.




lsz162-092000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt wed sep 9 2026 /901 am cdt wed sep 9 2026/

...gale warning in effect until 6 pm edt /5 pm cdt/ this
evening...

.rest of today...west gales to 35 knots diminishing to 20 to
30 knots late. waves 3 to 6 feet occasionally to 8 feet building
to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to
5 feet occasionally to 7 feet. 
.tonight...west winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.thursday...west winds 5 to 15 knots backing south late. waves
calm to 2 feet. 
.thursday night...south winds 5 to 15 knots increasing to 15 to
25 knots after midnight. waves building to 1 to 3 feet. 
.friday...southwest winds 20 to 30 knots backing south by mid
afternoon. a chance of showers and a slight chance of
thunderstorms by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.friday night...south winds 20 to 30 knots becoming west 15 to
25 knots after midnight. showers and a chance of thunderstorms.
waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.saturday...west winds 15 to 25 knots. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.sunday...northwest winds 5 to 15 knots becoming northeast gales
to 35 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet. 

$$