(1/10)
Latest Great Lakes Marine Forecast by KBUF
Issued 10/21/2025 4:02 PM America/New_York.
Valid through 10/21/2025 11:00 PM America/New_York.
fzus61 kbuf 212002
glflo
expires:202510220300;;525347
open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue oct 21 2025
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 29.6 inch low just north of new england this morning
will drift north across quebec through the day. meanwhile, another
29.4 inch low will move across the upper great lakes and gradually
consolidate with the first low through wednesday night. this low
will then move from central quebec thursday morning to far northern
quebec by friday. a 30.4 inch surface high will then move towards
the lake saturday.
loz063>065-220300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt tue oct 21 2025
.tonight...southwest winds 15 to 20 knots becoming south 10 to
15 knots. a chance of showers early. showers likely late. a
chance of waterspouts late. waves 2 to 4 feet subsiding to 1 to
3 feet.
.wednesday...southwest winds 15 to 25 knots increasing to
30 knots. a chance of waterspouts. showers. waves 2 to 4 feet
building to 4 to 7 feet. waves occasionally around 9 feet.
.wednesday night...southwest winds 20 to 25 knots. a chance of
waterspouts. showers. waves 5 to 8 feet. waves occasionally
around 10 feet.
.thursday...southwest winds 15 to 25 knots becoming west. a
chance of waterspouts. showers. waves 5 to 8 feet. waves
occasionally around 10 feet.
.thursday night...west winds 15 to 20 knots. a chance of
waterspouts. showers. waves 5 to 8 feet subsiding to 3 to 6 feet.
waves occasionally around 10 feet.
.friday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of waterspouts during the day. showers. waves
3 to 5 feet subsiding to 1 to 3 feet.
.saturday...northwest winds 10 knots or less becoming northeast.
a chance of showers. waves 2 feet or less.
.sunday...east winds 10 knots or less. a chance of showers during
the day. waves 2 feet or less.
$$
(2/10)
Latest Great Lakes Marine Forecast by KBUF
Issued 10/21/2025 4:02 PM America/New_York.
Valid through 10/21/2025 11:00 PM America/New_York.
fzus61 kbuf 212002
glflo
expires:202510220300;;525346
open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue oct 21 2025
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 29.6 inch low just north of new england this morning
will drift north across quebec through the day. meanwhile, another
29.4 inch low will move across the upper great lakes and gradually
consolidate with the first low through wednesday night. this low
will then move from central quebec thursday morning to far northern
quebec by friday. a 30.4 inch surface high will then move towards
the lake saturday.
loz062-220300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt tue oct 21 2025
.tonight...southwest winds 15 to 20 knots. a chance of showers
this evening, then showers likely after midnight. a chance of
waterspouts after midnight. waves 3 to 6 feet subsiding to 2 to
4 feet.
.wednesday...southwest winds 15 to 25 knots. a chance of
waterspouts. showers likely early, then showers from late morning
on. waves 2 to 4 feet building to 3 to 5 feet.
.wednesday night...southwest winds 15 to 20 knots becoming west.
a chance of waterspouts. showers. waves 3 to 6 feet.
.thursday...west winds 15 to 20 knots. a chance of waterspouts.
showers. waves 4 to 7 feet. waves occasionally around 9 feet.
.thursday night...west winds 15 to 20 knots. a chance of
waterspouts. showers. waves 3 to 6 feet.
.friday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of waterspouts during the day. showers. waves
2 to 4 feet subsiding to 1 to 2 feet.
.saturday...northwest winds 10 knots or less becoming northeast.
a chance of showers during the day. waves 2 feet or less.
.sunday...northeast winds 5 to 10 knots becoming east. waves
2 feet or less.
$$
(3/10)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/21/2025 4:01 PM America/New_York.
Valid through 10/21/2025 10:30 PM America/New_York.
fzus61 kcle 212001
glfle
expires:202510220230;;525229
open lake forecast for lake erie
national weather service cleveland oh
401 pm edt tue oct 21 2025
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...
low pressure 29.40 inches continues moving east across the
northern great lakes tonight, dragging another cold front through
the region this evening. the low will lift north into quebec
thursday while pulling another cold front across the lake. a
trough averaging 30.10 inches persists across the lake on friday
before high pressure 30.20 inches builds towards the eastern great
lakes friday night through the weekend.
lez162-163-220230-
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-
401 pm edt tue oct 21 2025
...low water advisory in effect from 10 pm this evening to 11 pm
edt wednesday...
.tonight...southwest winds to 30 knots becoming west. showers
likely with a chance of thunderstorms early, then a chance of
showers from late evening on. waves 3 to 6 feet.
.wednesday...west winds to 30 knots. a chance of waterspouts. a
chance of showers in the morning, then showers likely in the
afternoon. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet.
.wednesday night...west winds to 30 knots. a chance of
waterspouts. showers likely. waves 4 to 7 feet subsiding to 3 to
6 feet. waves occasionally around 9 feet.
.thursday...west winds 15 to 25 knots. a chance of showers in the
morning, then showers likely in the afternoon. waves 3 to 5 feet
subsiding to 1 to 3 feet.
.thursday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. showers likely in the evening. waves 1 to 3 feet.
.friday...west winds 5 to 15 knots diminishing to less than
10 knots. waves 2 feet or less.
.saturday...southwest winds 10 knots or less becoming southeast.
waves 1 foot or less.
.sunday...southeast winds 5 to 10 knots becoming east. waves
2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(4/10)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/21/2025 4:01 PM America/New_York.
Valid through 10/21/2025 10:30 PM America/New_York.
fzus61 kcle 212001
glfle
expires:202510220230;;525228
open lake forecast for lake erie
national weather service cleveland oh
401 pm edt tue oct 21 2025
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...
low pressure 29.40 inches continues moving east across the
northern great lakes tonight, dragging another cold front through
the region this evening. the low will lift north into quebec
thursday while pulling another cold front across the lake. a
trough averaging 30.10 inches persists across the lake on friday
before high pressure 30.20 inches builds towards the eastern great
lakes friday night through the weekend.
lez164-220230-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
401 pm edt tue oct 21 2025
...low water advisory in effect from 10 pm this evening to 11 pm
edt wednesday...
...gale warning in effect from wednesday morning through
wednesday evening...
.tonight...southwest winds to 30 knots becoming west. showers
with a chance of thunderstorms this evening, then a chance of
showers after midnight. waves 3 to 6 feet building to 4 to
7 feet. waves occasionally around 9 feet.
.wednesday...west winds to 30 knots increasing to 35 knot gales.
a chance of waterspouts. a chance of showers through early
afternoon, then showers likely late. waves 5 to 9 feet. waves
occasionally around 11 feet.
.wednesday night...west winds to 30 knots. a chance of
waterspouts. showers likely. waves 5 to 8 feet. waves
occasionally around 10 feet.
.thursday...west winds 15 to 25 knots. a chance of waterspouts in
the morning. showers. waves 3 to 6 feet.
.thursday night...west winds 15 to 20 knots. showers in the
evening, then a chance of showers overnight. waves 2 to 4 feet.
.friday...west winds 5 to 15 knots becoming southwest. waves 1 to
3 feet subsiding to 1 foot or less.
.saturday...southwest winds 10 knots or less becoming southeast.
waves 1 foot or less.
.sunday...southeast winds 5 to 10 knots becoming east. a chance
of showers sunday night. waves 2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(5/10)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/21/2025 4:01 PM America/New_York.
Valid through 10/21/2025 10:30 PM America/New_York.
fzus61 kcle 212001
glfle
expires:202510220230;;525232
open lake forecast for lake erie
national weather service cleveland oh
401 pm edt tue oct 21 2025
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...
low pressure 29.40 inches continues moving east across the
northern great lakes tonight, dragging another cold front through
the region this evening. the low will lift north into quebec
thursday while pulling another cold front across the lake. a
trough averaging 30.10 inches persists across the lake on friday
before high pressure 30.20 inches builds towards the eastern great
lakes friday night through the weekend.
lez061-220230-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
401 pm edt tue oct 21 2025
.tonight...southwest winds 15 to 25 knots. showers likely with a
chance of thunderstorms this evening, then showers with a chance
of thunderstorms after midnight. a chance of waterspouts from
late evening on. waves 5 to 7 feet building to 5 to 8 feet. waves
occasionally around 10 feet.
.wednesday...southwest winds to 30 knots. a chance of
waterspouts. showers with a chance of thunderstorms. waves 6 to
9 feet building to 9 to 13 feet. waves occasionally around
16 feet.
.wednesday night...southwest winds to 30 knots becoming west. a
chance of waterspouts. showers with a chance of thunderstorms.
waves 9 to 13 feet subsiding to 6 to 9 feet. waves occasionally
around 16 feet.
.thursday...west winds 15 to 25 knots. a chance of waterspouts.
showers with a chance of thunderstorms. waves 5 to 8 feet. waves
occasionally around 10 feet.
.thursday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. showers. waves 3 to 6 feet.
.friday...west winds 15 to 20 knots becoming northwest 5 to
15 knots. showers. waves 2 to 4 feet subsiding to 1 to 2 feet.
.saturday...west winds less than 10 knots. a chance of showers.
waves 1 foot or less.
.sunday...east winds 10 knots or less. a chance of showers during
the day. waves 1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(6/10)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/21/2025 4:01 PM America/New_York.
Valid through 10/21/2025 10:30 PM America/New_York.
fzus61 kcle 212001
glfle
expires:202510220230;;525230
open lake forecast for lake erie
national weather service cleveland oh
401 pm edt tue oct 21 2025
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...
low pressure 29.40 inches continues moving east across the
northern great lakes tonight, dragging another cold front through
the region this evening. the low will lift north into quebec
thursday while pulling another cold front across the lake. a
trough averaging 30.10 inches persists across the lake on friday
before high pressure 30.20 inches builds towards the eastern great
lakes friday night through the weekend.
lez165>168-220230-
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-
401 pm edt tue oct 21 2025
...gale warning in effect from wednesday morning through
wednesday evening...
.tonight...southwest winds 15 to 25 knots becoming west to
30 knots. a chance of waterspouts. showers with a chance of
thunderstorms this evening, then showers after midnight. showers
with a slight chance of thunderstorms late. waves 4 to 7 feet
building to 8 to 11 feet. waves occasionally around 14 feet.
.wednesday...west winds to 30 knots increasing to 35 knot gales.
a chance of waterspouts. showers with a chance of thunderstorms.
waves 8 to 12 feet building to 10 to 14 feet. waves occasionally
around 18 feet.
.wednesday night...west gales to 35 knots. a chance of
waterspouts. showers with a chance of thunderstorms. waves 10 to
14 feet subsiding to 7 to 11 feet. waves occasionally around
18 feet.
.thursday...west winds to 30 knots. a chance of waterspouts in
the morning. showers with a chance of thunderstorms. waves 7 to
10 feet subsiding to 5 to 8 feet. waves occasionally around
13 feet.
.thursday night...west winds 15 to 25 knots becoming northwest.
showers. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet.
.friday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. a chance of showers. waves 3 to 5 feet subsiding to
1 to 3 feet.
.saturday...west winds less than 10 knots becoming southeast.
waves 1 foot or less.
.sunday...southeast winds 5 to 15 knots becoming east. a chance
of showers sunday night. waves 2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(7/10)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/21/2025 4:01 PM America/New_York.
Valid through 10/21/2025 10:30 PM America/New_York.
fzus61 kcle 212001
glfle
expires:202510220230;;525231
open lake forecast for lake erie
national weather service cleveland oh
401 pm edt tue oct 21 2025
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...
low pressure 29.40 inches continues moving east across the
northern great lakes tonight, dragging another cold front through
the region this evening. the low will lift north into quebec
thursday while pulling another cold front across the lake. a
trough averaging 30.10 inches persists across the lake on friday
before high pressure 30.20 inches builds towards the eastern great
lakes friday night through the weekend.
lez169-220230-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
401 pm edt tue oct 21 2025
...gale warning in effect from wednesday morning through
wednesday evening...
.tonight...southwest winds 15 to 25 knots. showers with a chance
of thunderstorms. a chance of waterspouts from late evening on.
waves 5 to 8 feet building to 6 to 9 feet. waves occasionally
around 11 feet.
.wednesday...southwest winds to 30 knots increasing to 35 knot
gales. a chance of waterspouts. showers with a chance of
thunderstorms. waves 7 to 11 feet building to 10 to 14 feet.
waves occasionally around 18 feet.
.wednesday night...southwest winds to 30 knots becoming west. a
chance of waterspouts. showers with a chance of thunderstorms.
waves 10 to 14 feet subsiding to 6 to 10 feet. waves occasionally
around 18 feet.
.thursday...west winds 15 to 25 knots. a chance of waterspouts.
showers with a chance of thunderstorms. waves 5 to 9 feet. waves
occasionally around 11 feet.
.thursday night...west winds 15 to 20 knots. showers. waves 4 to
7 feet subsiding to 3 to 5 feet. waves occasionally around
9 feet.
.friday...west winds 15 to 20 knots becoming northwest 5 to
15 knots. showers. waves 3 to 5 feet subsiding to 1 to 3 feet.
.saturday...west winds less than 10 knots. a chance of showers.
waves 1 foot or less.
.sunday...southeast winds 10 knots or less becoming east. a
chance of showers during the day. waves 1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(8/10)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/21/2025 3:45 PM America/New_York.
Valid through 10/21/2025 11:45 PM America/New_York.
fzus63 kdtx 211945
glfsc
expires:202510220345;;524747
lake st clair forecast
national weather service detroit/pontiac mi
345 pm edt tue oct 21 2025
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 of 29.40 inches tracks over lake superior
this afternoon will track through northern lake huron on
wednesday. much colder air will filter into the great lakes
region leading to unsettled weather and hazardous conditions for
small boats.
lcz460-220345-
lake st clair-
345 pm edt tue oct 21 2025
...small craft advisory in effect through late wednesday night...
.tonight...southwest winds 15 to 20 knots with gusts to 25 knots.
mostly cloudy until early morning becoming partly cloudy. light
showers likely and a chance of thunderstorms early in the evening.
a chance of light showers in the late evening and early
morning...then light showers likely early in the morning. waves 1
to 3 feet building to 2 to 4 feet in the late evening and
overnight.
.wednesday...southwest winds 15 to 25 knots. light showers likely
in the morning...then light showers in the afternoon. waves 2 to
4 feet.
.wednesday night...west winds to 30 knots diminishing to 20 to 25
knots after midnight. mostly cloudy. light showers likely until
early morning...then a chance of light showers after midnight. waves
2 to 4 feet.
.thursday...west winds 20 to 25 knots diminishing to 15 to 20 knots
in the late morning and afternoon. partly sunny. a chance of light
showers until late afternoon...then light showers likely early in
the afternoon. waves 1 to 3 feet.
.thursday night...west winds 15 to 20 knots diminishing to 10 to 15
knots after midnight. partly cloudy until early morning then
clearing. light showers likely early in the evening...then a chance
of light showers in the late evening and early morning. waves 1 to 3
feet.
.friday...west winds 10 to 15 knots becoming northwest 5 to 10 knots
in the evening. sunny becoming mostly sunny in the afternoon
becoming partly cloudy. waves 2 feet or less.
.saturday...light and variable winds. partly cloudy. waves 2 feet or
less.
.sunday...east winds 10 to 15 knots. partly cloudy. waves 2 feet or
less.
$$
(9/10)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/21/2025 3:44 PM America/New_York.
Valid through 10/21/2025 11:45 PM America/New_York.
fzus63 kdtx 211944
glflh
expires:202510220345;;524703
open lake forecast for lake huron
national weather service detroit/pontiac mi
344 pm edt tue oct 21 2025
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 of 29.40 inches tracks over lake superior
this afternoon will track through northern lake huron on
wednesday. much colder air will filter into the great lakes
region leading to unsettled weather and hazardous conditions for
small boats.
lhz363-462>464-220345-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
344 pm edt tue oct 21 2025
.tonight...southwest winds 10 to 20 knots. a chance of showers. a
chance of waterspouts. waves 5 to 7 feet. waves occasionally
around 10 feet.
.wednesday...west winds 15 to 20 knots. a chance of showers in
the morning...then showers likely in the afternoon. a chance of
waterspouts in the afternoon. waves 4 to 6 feet. waves
occasionally around 8 feet.
.wednesday night...west winds 15 to 20 knots increasing to 20 to
25 knots in the late evening and overnight. showers. waves 6 to
9 feet. waves occasionally around 12 feet.
.thursday...west winds 20 to 25 knots decreasing to 15 to
20 knots early in the afternoon. a chance of waterspouts in the
morning. showers likely in the morning...then showers in the
afternoon. waves 6 to 9 feet. waves occasionally around 12 feet.
.thursday night...west winds 15 to 20 knots. showers in the
evening...then showers likely after midnight. waves 6 to 9 feet.
waves occasionally around 12 feet.
.friday...west winds 15 to 20 knots decreasing to 5 to 10 knots.
a chance of showers. waves 4 to 6 feet subsiding to 1 to 3 feet
late in the evening. waves occasionally around 8 feet.
.saturday...west winds 5 to 10 knots early in the morning
becoming light and variable...then becoming southeast 5 to
10 knots in the late evening and early morning. a chance of
showers early in the morning. waves 2 feet or less.
.sunday...southeast winds 5 to 10 knots becoming east 10 to
15 knots in the late evening and early morning. waves 1 to
3 feet.
$$
(10/10)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/21/2025 3:44 PM America/New_York.
Valid through 10/21/2025 11:45 PM America/New_York.
fzus63 kdtx 211944
glflh
expires:202510220345;;524702
open lake forecast for lake huron
national weather service detroit/pontiac mi
344 pm edt tue oct 21 2025
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 of 29.40 inches tracks over lake superior
this afternoon will track through northern lake huron on
wednesday. much colder air will filter into the great lakes
region leading to unsettled weather and hazardous conditions for
small boats.
lhz361-362-220345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
344 pm edt tue oct 21 2025
.tonight...southwest winds 10 to 15 knots veering to the west
early in the morning. a chance of showers. waves 5 to 7 feet.
waves occasionally around 10 feet.
.wednesday...west winds 10 to 15 knots. a chance of showers in
the morning...then showers likely in the afternoon. a chance of
waterspouts. waves 2 to 4 feet.
.wednesday night...northwest winds 15 to 20 knots. showers. a
chance of waterspouts after midnight. waves 4 to 6 feet.
.thursday...northwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots early in the afternoon. a
chance of waterspouts in the morning. a chance of showers in the
morning...then showers likely in the afternoon. waves 6 to
9 feet. waves occasionally around 12 feet.
.thursday night...northwest winds 20 to 25 knots with gusts to
around 30 knots decreasing to 15 to 20 knots in the late evening
and overnight. showers likely. waves 5 to 7 feet. waves
occasionally around 10 feet.
.friday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the evening. a chance of showers. waves 3 to
5 feet subsiding to 1 to 3 feet late in the evening.
.saturday...west winds 5 to 10 knots early in the morning
becoming light and variable...then becoming southeast 5 to
10 knots in the late evening and early morning. waves 2 feet or
less.
.sunday...southeast winds 5 to 10 knots increasing to 10 to
15 knots until early morning. waves 1 to 3 feet.
$$
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