(1/8)
Latest Great Lakes Marine Forecast by KBUF
Issued 5/15/2026 10:02 PM America/New_York.
Valid through 5/16/2026 5:00 AM America/New_York.
fzus61 kbuf 160202
glflo
expires:202605160900;;628539
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt fri may 15 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a 30.1 inch high will slide off the carolina coast
tonight. a 29.1 inch low well to the north over hudson bay will
swing a warm front across the lower great lakes tomorrow, with an
attendant cold front approaching and stalling near the lake saturday
night. a 29.4 inch low over the central plains on sunday will weaken
to 29.7 inches as it moves northeast into the upper great lakes
sunday night while swinging an attendant warm front across the lake.
another area of low pressure will develop over the central plains
monday. the low will weaken from 29.4 inches to 29.6 inches as it
tracks northeast to the upper great lakes monday night into tuesday
morning, then to near the southern tip of james bay on tuesday. a
cold front from this low will cross the lake wednesday.
loz063>065-160900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt fri may 15 2026
.overnight...southwest winds 5 to 10 knots becoming south.
waves 1 to 2 feet.
.saturday...south winds 5 to 15 knots becoming southwest. a
chance of showers early in the afternoon. showers likely with a
chance of thunderstorms late. waves 2 feet or less.
.saturday night...southwest winds 5 to 15 knots becoming west. a
chance of showers and thunderstorms in the evening, then a chance
of showers overnight. waves 2 to 4 feet subsiding to 1 to 3 feet.
.sunday...west winds 5 to 10 knots. waves 2 feet or less.
.sunday night...south winds 10 knots or less becoming east. waves
1 foot or less.
.monday...southeast winds 10 to 15 knots becoming south. waves
2 feet or less.
.tuesday...southwest winds 10 to 15 knots. a chance of showers
and thunderstorms during the day, then showers likely with a
chance of thunderstorms tuesday night. waves 1 to 3 feet building
to 2 to 4 feet.
.wednesday...southwest winds 10 to 15 knots becoming west.
showers likely during the day. waves 2 to 4 feet building to 3 to
5 feet, then subsiding to 2 to 4 feet.
winds and waves higher in and near thunderstorms.
$$
(2/8)
Latest Great Lakes Marine Forecast by KBUF
Issued 5/15/2026 10:02 PM America/New_York.
Valid through 5/16/2026 5:00 AM America/New_York.
fzus61 kbuf 160202
glflo
expires:202605160900;;628538
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt fri may 15 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a 30.1 inch high will slide off the carolina coast
tonight. a 29.1 inch low well to the north over hudson bay will
swing a warm front across the lower great lakes tomorrow, with an
attendant cold front approaching and stalling near the lake saturday
night. a 29.4 inch low over the central plains on sunday will weaken
to 29.7 inches as it moves northeast into the upper great lakes
sunday night while swinging an attendant warm front across the lake.
another area of low pressure will develop over the central plains
monday. the low will weaken from 29.4 inches to 29.6 inches as it
tracks northeast to the upper great lakes monday night into tuesday
morning, then to near the southern tip of james bay on tuesday. a
cold front from this low will cross the lake wednesday.
loz062-160900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt fri may 15 2026
.overnight...southwest winds 5 to 15 knots becoming south.
waves 1 to 2 feet.
.saturday...south winds 5 to 15 knots becoming southwest 15 to
20 knots. a chance of showers in the afternoon. waves 1 to 3 feet
building to 3 to 5 feet.
.saturday night...southwest winds 15 to 20 knots becoming west
5 to 15 knots. a chance of showers in the evening. waves 3 to
5 feet subsiding to 1 to 3 feet.
.sunday...west winds 10 knots or less becoming south. waves
2 feet or less.
.sunday night...southeast winds 10 knots or less becoming east.
waves 1 foot or less.
.monday...southeast winds 5 to 15 knots becoming southwest. a
chance of showers monday night. waves 2 feet or less.
.tuesday...southwest winds 15 to 20 knots. a chance of showers
during the day, then showers likely with a chance of
thunderstorms tuesday night. waves 1 to 3 feet building to 3 to
5 feet.
.wednesday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. showers likely during the day. waves 2 to 4 feet.
winds and waves higher in and near thunderstorms.
$$
(3/8)
Latest Great Lakes Marine Forecast by KCLE
Issued 5/15/2026 9:10 PM America/New_York.
Valid through 5/16/2026 4:15 AM America/New_York.
fzus61 kcle 160110
glfle
expires:202605160815;;627220
open lake forecast for lake erie
national weather service cleveland oh
910 pm edt fri may 15 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
high pressure 30.10 inches shifts east of lake erie tonight. a
warm front lifts northward tonight, then will become stationary
just north of the lake this weekend. a ridge averaging 30.00
inches will build over the eastern great lakes into early next
week.
lez162>165-160815-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
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-
910 pm edt fri may 15 2026
.overnight...south winds 10 to 15 knots. waves 2 feet or
less.
.saturday...south winds 10 to 15 knots becoming southwest.
showers likely in the morning, then showers likely with a chance
of thunderstorms in the afternoon. waves 1 to 3 feet.
.saturday night...southwest winds 5 to 15 knots. a chance of
showers and thunderstorms in the evening, then a chance of
showers overnight. waves 1 to 3 feet.
.sunday...southwest winds 10 knots or less becoming east. a
chance of showers. waves 1 foot or less.
.sunday night...east winds 5 to 15 knots becoming south. a chance
of showers and thunderstorms in the evening. waves 2 feet or
less.
.monday...south winds 10 to 15 knots. a chance of showers and
thunderstorms monday night. waves 1 to 2 feet.
.tuesday...southwest winds 15 to 20 knots. showers likely with a
chance of thunderstorms. waves 1 to 3 feet.
.wednesday...west winds 10 to 15 knots becoming north. a chance
of showers during the day. waves 1 to 3 feet.
winds and waves higher in and near thunderstorms.
$$
(4/8)
Latest Great Lakes Marine Forecast by KCLE
Issued 5/15/2026 9:10 PM America/New_York.
Valid through 5/16/2026 4:15 AM America/New_York.
fzus61 kcle 160110
glfle
expires:202605160815;;627221
open lake forecast for lake erie
national weather service cleveland oh
910 pm edt fri may 15 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
high pressure 30.10 inches shifts east of lake erie tonight. a
warm front lifts northward tonight, then will become stationary
just north of the lake this weekend. a ridge averaging 30.00
inches will build over the eastern great lakes into early next
week.
lez061-166>169-160815-
ripley to buffalo ny extending from 5nm 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-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
910 pm edt fri may 15 2026
.overnight...south winds 5 to 15 knots. waves 2 feet or
less.
.saturday...south winds 10 to 15 knots becoming southwest. a
chance of showers with a slight chance of thunderstorms late in
the morning. a chance of showers and thunderstorms in the
afternoon. waves 1 to 3 feet.
.saturday night...southwest winds 5 to 15 knots. a chance of
showers and thunderstorms in the evening. waves 1 to 3 feet.
.sunday...southwest winds 10 knots or less becoming northeast. a
chance of showers. waves 2 feet or less.
.sunday night...east winds 5 to 15 knots becoming south. waves
2 feet or less.
.monday...south winds 10 to 15 knots. a chance of showers monday
night. waves 1 to 3 feet.
.tuesday...southwest winds 10 to 15 knots. showers with a chance
of thunderstorms. waves 1 to 3 feet building to 2 to 4 feet.
.wednesday...west winds 10 to 15 knots becoming north. a chance
of showers during the day. waves 2 to 4 feet subsiding to 1 to
3 feet.
winds and waves higher in and near thunderstorms.
$$
(5/8)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/15/2026 9:41 PM America/New_York.
Valid through 5/16/2026 5:45 AM America/New_York.
fzus63 kdtx 160141
glflh
expires:202605160945;;627941
open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt fri may 15 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...low pressure trough, averaging 29.80 inches, tracks
through the great lakes saturday morning leading to showers and
thunderstorms. southwest winds become variable with localized
gusty winds over 30 knots possible in any thunderstorm activity.
a shallow cold front stalls south of lake huron saturday night
before high pressure arrives sunday.
lhz362-363-160945-
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-
941 pm edt fri may 15 2026
.rest of tonight...south winds 15 to 20 knots. waves 5 to 7 feet.
waves occasionally around 10 feet.
.saturday...south winds 15 to 20 knots becoming southwest 10 to
15 knots in the afternoon. a chance of showers in the morning.
waves 4 to 6 feet. waves occasionally around 8 feet.
.saturday night...north winds 5 to 10 knots becoming northwest
10 to 15 knots in the late evening and overnight. waves 2 to
4 feet.
.sunday...northwest winds 5 to 10 knots veering to the northeast
early in the afternoon. waves 1 to 3 feet.
.sunday night...east winds 10 to 15 knots becoming southeast
15 to 20 knots in the late evening and overnight. a chance of
showers. waves 1 to 3 feet building to 4 to 6 feet in the late
evening and overnight. waves occasionally around 8 feet.
.monday...south winds 15 to 20 knots. a chance of showers. rain
showers likely and a chance of thunderstorms late in the
afternoon. waves 5 to 7 feet. waves occasionally around 10 feet.
.tuesday...south winds 15 to 20 knots veering to the southwest by
midnight. showers likely early in the morning...then a chance of
showers. waves 5 to 7 feet. waves occasionally around 10 feet.
.wednesday...northwest winds 15 to 20 knots. waves 6 to 9 feet.
waves occasionally around 12 feet.
$$
(6/8)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/15/2026 9:41 PM America/New_York.
Valid through 5/16/2026 5:45 AM America/New_York.
fzus63 kdtx 160141
glflh
expires:202605160945;;627942
open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt fri may 15 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...low pressure trough, averaging 29.80 inches, tracks
through the great lakes saturday morning leading to showers and
thunderstorms. southwest winds become variable with localized
gusty winds over 30 knots possible in any thunderstorm activity.
a shallow cold front stalls south of lake huron saturday night
before high pressure arrives sunday.
lhz462>464-160945-
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-
941 pm edt fri may 15 2026
.rest of tonight...south winds 10 to 15 knots. waves 2 to 4 feet.
.saturday...south winds 10 to 15 knots increasing to 15 to
20 knots late in the morning...then becoming southwest 10 to
15 knots in the afternoon. showers likely in the morning. waves
3 to 5 feet.
.saturday night...west winds 5 to 10 knots veering to the north
in the late evening and overnight. waves 2 to 4 feet subsiding to
2 feet or less in the late evening and overnight.
.sunday...north winds 5 to 10 knots. waves 2 feet or less.
.sunday night...northeast winds 5 to 10 knots becoming southeast
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet building to 2 to 4 feet in the late evening and overnight.
.monday...south winds 15 to 20 knots decreasing to 10 to 15 knots
late in the evening. a chance of showers late in the afternoon.
waves 3 to 5 feet.
.tuesday...south winds 15 to 20 knots. showers likely and a
chance of thunderstorms. waves 4 to 6 feet. waves occasionally
around 8 feet.
.wednesday...northwest winds 10 to 15 knots. a chance of showers
early in the morning. waves 3 to 5 feet.
$$
(7/8)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/15/2026 9:41 PM America/New_York.
Valid through 5/16/2026 5:45 AM America/New_York.
fzus63 kdtx 160141
glflh
expires:202605160945;;627940
open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt fri may 15 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...low pressure trough, averaging 29.80 inches, tracks
through the great lakes saturday morning leading to showers and
thunderstorms. southwest winds become variable with localized
gusty winds over 30 knots possible in any thunderstorm activity.
a shallow cold front stalls south of lake huron saturday night
before high pressure arrives sunday.
lhz361-160945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
941 pm edt fri may 15 2026
.rest of tonight...south winds 10 to 15 knots increasing to 15 to
20 knots after midnight...then decreasing to 10 to 15 knots early
in the morning. waves 4 to 6 feet. waves occasionally around
8 feet.
.saturday...south winds 10 to 15 knots veering to the west in the
afternoon. waves 2 to 4 feet.
.saturday night...west winds 10 to 15 knots becoming northwest
5 to 10 knots in the late evening and overnight. waves 2 to
4 feet subsiding to 1 to 3 feet after midnight.
.sunday...northwest winds 5 to 10 knots veering to the north in
the late morning and early afternoon...then becoming east 10 to
15 knots early in the afternoon. waves 2 feet or less building to
2 to 4 feet early in the afternoon.
.sunday night...east winds 15 to 20 knots. showers likely in the
evening...then a chance of showers after midnight. waves 4 to
6 feet.
.monday...southeast winds 15 to 20 knots becoming south 10 to
15 knots late in the morning...then becoming southwest 5 to
10 knots late in the afternoon becoming south 10 to 15 knots late
in the evening. showers likely late in the morning. a chance of
thunderstorms. rain showers late in the afternoon. waves 3 to
5 feet. waves occasionally around 8 feet.
.tuesday...south winds 15 to 20 knots becoming southwest 20 to
25 knots early in the evening...then veering to the northwest by
midnight. showers likely and a chance of thunderstorms...then a
chance of showers by midnight. waves 4 to 6 feet building to 6 to
9 feet by midnight. waves occasionally around 12 feet.
.wednesday...west winds 20 to 25 knots with gusts to around
30 knots becoming northwest 15 to 20 knots by midnight. waves
6 to 9 feet. waves occasionally around 12 feet.
$$
(8/8)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/15/2026 9:41 PM America/New_York.
Valid through 5/16/2026 5:45 AM America/New_York.
fzus63 kdtx 160141
glfsc
expires:202605160945;;627957
lake st clair forecast
national weather service detroit/pontiac mi
941 pm edt fri may 15 2026
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...low pressure trough, averaging 29.80 inches, tracks
through the great lakes saturday morning leading to showers and
thunderstorms. southwest winds become variable with localized
gusty winds over 30 knots possible in any thunderstorm activity.
a shallow cold front stalls south of lake huron saturday night
before high pressure arrives sunday.
lcz460-160945-
lake st clair-
941 pm edt fri may 15 2026
.rest of tonight...south winds 10 to 15 knots. clear. waves 2 feet
or less.
.saturday...south winds 10 to 15 knots becoming southwest 15 to 20
knots in the late morning and early afternoon...then diminishing to
10 to 15 knots late in the afternoon. partly sunny. light showers
likely early in the morning...then a chance of light showers in the
late morning and afternoon. waves 1 to 3 feet.
.saturday night...west winds 10 to 15 knots becoming southwest 5 to
10 knots by midnight...then veering to the northwest after midnight.
partly cloudy. waves 2 feet or less.
.sunday...northeast winds 5 to 10 knots veering to the southeast in
the late morning and afternoon. partly sunny. waves 2 feet or less.
.sunday night...southeast winds 10 to 15 knots. partly cloudy. waves
2 feet or less.
.monday...south winds 10 to 15 knots increasing to 15 to 20 knots in
the afternoon and evening. mostly sunny becoming sunny in the
afternoon becoming mostly clear. waves 1 to 3 feet.
.tuesday...southwest winds 20 to 25 knots. partly cloudy. showers
likely and a chance of thunderstorms. waves 2 to 4 feet.
.wednesday...northwest winds 15 to 20 knots. partly cloudy. showers
likely and a chance of thunderstorms. waves 1 to 3 feet.
$$
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