(1/9)
Latest Great Lakes Marine Forecast by KBUF
Issued 6/21/2026 4:02 PM America/New_York.
Valid through 6/21/2026 11:00 PM America/New_York.
fzus61 kbuf 212002
glflo
expires:202606220300;;142895
open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun jun 21 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 30.0 inch broad area of high pressure will settle east
of the lake tonight. in its wake a 29.7 inch low is then forecast to
move south of the lower great lakes monday and monday night, before
moving off the new england coast by tuesday. a broad area of high
pressure averaging 30.1 inches will advance over the eastern great
lakes region tuesday and wednesday, before exiting east into new
england on thursday as a weak 29.8 inch low moves east into the
central great lakes. this low is forecasted to move north of the
lake friday, with its associated weak cold front crossing the lake.
loz062-220300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt sun jun 21 2026
.tonight...west winds 5 to 10 knots becoming light and variable.
a chance of showers late. waves 1 foot or less.
.monday...east winds 5 to 15 knots becoming northeast. showers.
waves 2 feet or less building to 2 to 3 feet.
.monday night...northeast winds 5 to 15 knots becoming west
10 knots or less. a chance of showers in the evening. waves 1 to
3 feet.
.tuesday...west winds 5 to 10 knots. waves 1 foot or less.
.tuesday night...west winds 5 to 10 knots becoming northwest.
waves 2 feet or less.
.wednesday...west winds less than 10 knots becoming south. waves
1 foot or less.
.thursday...southeast winds 10 knots or less becoming southwest.
a chance of showers and thunderstorms. waves 1 foot or less.
.friday...southwest winds 5 to 10 knots becoming west. a chance
of showers during the day. waves 1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(2/9)
Latest Great Lakes Marine Forecast by KBUF
Issued 6/21/2026 4:02 PM America/New_York.
Valid through 6/21/2026 11:00 PM America/New_York.
fzus61 kbuf 212002
glflo
expires:202606220300;;142896
open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun jun 21 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 30.0 inch broad area of high pressure will settle east
of the lake tonight. in its wake a 29.7 inch low is then forecast to
move south of the lower great lakes monday and monday night, before
moving off the new england coast by tuesday. a broad area of high
pressure averaging 30.1 inches will advance over the eastern great
lakes region tuesday and wednesday, before exiting east into new
england on thursday as a weak 29.8 inch low moves east into the
central great lakes. this low is forecasted to move north of the
lake friday, with its associated weak cold front crossing the lake.
loz063>065-220300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sun jun 21 2026
.tonight...west winds 5 to 10 knots becoming south. waves 2 feet
or less.
.monday...southeast winds 5 to 15 knots becoming northeast 15 to
20 knots. a chance of showers early, then showers from late
morning on. waves 1 to 3 feet.
.monday night...northeast winds 15 to 20 knots becoming northwest
5 to 15 knots. showers likely in the evening. waves 1 to 3 feet
subsiding to 1 foot or less.
.tuesday...northwest winds 5 to 10 knots becoming west. waves
2 feet or less.
.tuesday night...west winds 5 to 15 knots becoming northwest.
waves 1 to 2 feet.
.wednesday...west winds 5 to 15 knots becoming south less than
10 knots. waves 1 foot or less.
.thursday...south winds 10 knots or less. a chance of showers
during the day, then showers likely with a chance of
thunderstorms thursday night. waves 1 foot or less.
.friday...southwest winds 5 to 15 knots becoming west. a chance
of showers during the day. waves 2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(3/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 6/21/2026 3:58 PM America/New_York.
Valid through 6/21/2026 10:15 PM America/New_York.
fzus61 kcle 211958
glfle
expires:202606220215;;142674
open lake forecast for lake erie
national weather service cleveland oh
358 pm edt sun jun 21 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...
low pressure 29.70 inches lifts out of the mississippi valley
tonight and tracks just south of lake erie on monday. high
pressure 30.20 inches builds down across the great lakes tuesday
into wednesday. this ridge will depart by thursday as low
pressure 29.80 inches moves into the northern great lakes and
pushes a cold front across lake erie.
lez164>167-220215-
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-
358 pm edt sun jun 21 2026
.tonight...southeast winds less than 10 knots becoming east and
increasing to 15 to 20 knots after midnight. a slight chance of
showers late this evening. showers after midnight. waves 1 foot
or less building to 3 to 5 feet.
.monday...northeast winds 15 to 25 knots. showers in the morning,
then a chance of showers early in the afternoon. a slight chance
of showers late. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet.
.monday night...northeast winds 15 to 20 knots becoming north
10 to 15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet.
.tuesday...north winds 5 to 15 knots becoming northwest. waves
1 to 3 feet subsiding to 1 foot or less.
.tuesday night...northwest winds 10 knots or less becoming north.
waves 2 feet or less.
.wednesday...west winds 10 knots or less becoming south. a chance
of showers wednesday night. waves 1 foot or less.
.thursday...south winds 5 to 10 knots becoming west. a chance of
showers and thunderstorms during the day, then a chance of
showers thursday night. waves 1 to 2 feet.
.friday...west winds 5 to 10 knots becoming southeast. waves
1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(4/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 6/21/2026 3:58 PM America/New_York.
Valid through 6/21/2026 10:15 PM America/New_York.
fzus61 kcle 211958
glfle
expires:202606220215;;142675
open lake forecast for lake erie
national weather service cleveland oh
358 pm edt sun jun 21 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...
low pressure 29.70 inches lifts out of the mississippi valley
tonight and tracks just south of lake erie on monday. high
pressure 30.20 inches builds down across the great lakes tuesday
into wednesday. this ridge will depart by thursday as low
pressure 29.80 inches moves into the northern great lakes and
pushes a cold front across lake erie.
lez061-168-169-220215-
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-
358 pm edt sun jun 21 2026
.tonight...southwest winds 10 knots or less becoming east 10 to
15 knots. a slight chance of showers after midnight. showers
likely late. waves 1 foot or less.
.monday...east winds 15 to 25 knots becoming northeast. showers
in the morning, then a chance of showers in the afternoon. waves
2 to 4 feet building to 3 to 6 feet.
.monday night...northeast winds 15 to 20 knots becoming north
5 to 15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet.
.tuesday...northwest winds 5 to 10 knots becoming west. waves
2 feet or less.
.tuesday night...west winds 10 knots or less becoming north.
waves 2 feet or less.
.wednesday...west winds 10 knots or less becoming south. a chance
of showers wednesday night. waves 1 foot or less.
.thursday...south winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms. waves 1 foot or less.
.friday...west winds 10 knots or less becoming southwest. waves
2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(5/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 6/21/2026 3:58 PM America/New_York.
Valid through 6/21/2026 10:15 PM America/New_York.
fzus61 kcle 211958
glfle
expires:202606220215;;142673
open lake forecast for lake erie
national weather service cleveland oh
358 pm edt sun jun 21 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...
low pressure 29.70 inches lifts out of the mississippi valley
tonight and tracks just south of lake erie on monday. high
pressure 30.20 inches builds down across the great lakes tuesday
into wednesday. this ridge will depart by thursday as low
pressure 29.80 inches moves into the northern great lakes and
pushes a cold front across lake erie.
lez162-163-220215-
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-
358 pm edt sun jun 21 2026
.tonight...southeast winds 5 to 15 knots becoming east and
increasing to 15 to 25 knots. a chance of showers late this
evening. showers after midnight. waves 1 foot or less building to
3 to 5 feet.
.monday...east winds 15 to 25 knots becoming northeast. showers
likely early, then a chance of showers. waves 3 to 6 feet
building to 4 to 7 feet, then subsiding to 3 to 6 feet. waves
occasionally around 9 feet.
.monday night...north winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet.
.tuesday...north winds 10 knots or less becoming northwest. waves
2 feet or less.
.tuesday night...northwest winds 10 knots or less becoming east.
waves 1 foot or less.
.wednesday...south winds 10 knots or less. a chance of showers
and thunderstorms wednesday night. waves 1 foot or less.
.thursday...southwest winds 5 to 10 knots becoming west. a chance
of showers and thunderstorms during the day. waves 1 foot or
less.
.friday...west winds 5 to 10 knots becoming northeast. waves
1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(6/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/21/2026 3:35 PM America/New_York.
Valid through 6/21/2026 11:45 PM America/New_York.
fzus63 kdtx 211935
glflh
expires:202606220345;;141992
open lake forecast for lake huron
national weather service detroit/pontiac mi
335 pm edt sun jun 21 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a compact low pressure system, 29.60 inches, move east
across the ohio valley tonight into tomorrow morning. this will
bring active weather across the southern great lakes. high
pressure, 30.20 inches, will then build in tomorrow night into
tuesday, keeping winds light.
lhz361-220345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
335 pm edt sun jun 21 2026
.tonight...light and variable winds. waves 2 feet or less.
.monday...north winds 5 to 10 knots backing to the west in the
afternoon. waves 2 feet or less.
.monday night...northwest winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 1 to 3 feet building to 2 to
4 feet in the late evening and overnight.
.tuesday...northwest winds 5 to 10 knots backing to the west
early in the afternoon. waves 2 feet or less.
.tuesday night...west winds 5 to 10 knots becoming light and
variable. waves 2 feet or less.
.wednesday...light and variable winds becoming southeast 5 to
10 knots. a chance of showers. waves 2 feet or less.
.thursday...east winds 5 to 10 knots backing to the northeast
early in the evening...then backing to the northwest by midnight.
a chance of showers. a chance of thunderstorms until early
evening. waves 2 feet or less.
.friday...west winds 5 to 10 knots. waves 2 feet or less.
$$
(7/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/21/2026 3:35 PM America/New_York.
Valid through 6/21/2026 11:45 PM America/New_York.
fzus63 kdtx 211935
glfsc
expires:202606220345;;141996
lake st clair forecast
national weather service detroit/pontiac mi
335 pm edt sun jun 21 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...a compact low pressure system, 29.60 inches, move east
across the ohio valley tonight into tomorrow morning. this will
bring active weather across the southern great lakes. high
pressure, 30.20 inches, will then build in tomorrow night into
tuesday, keeping winds light.
lcz460-220345-
lake st clair-
335 pm edt sun jun 21 2026
.tonight...southeast winds 5 to 10 knots becoming east 10 to 15
knots after midnight. a chance of light showers late in the evening.
showers after midnight. waves 2 feet or less.
.monday...northeast winds 15 to 20 knots diminishing to 10 to 15
knots late in the afternoon. partly sunny. showers likely early in
the morning...then a chance of light showers late in the morning.
waves 1 to 3 feet.
.monday night...north winds 10 to 15 knots. clear. waves 2 feet or
less.
.tuesday...north winds 10 to 15 knots diminishing to 5 to 10 knots
in the late morning and afternoon. mostly sunny. waves 2 feet or
less.
.tuesday night...northeast winds 10 to 15 knots becoming light and
variable. mostly clear. waves 2 feet or less.
.wednesday...light and variable winds becoming south 5 to 10 knots
in the afternoon and evening. mostly sunny...then partly cloudy with
a chance of showers in the evening. waves 2 feet or less.
.thursday...west winds 5 to 10 knots. partly cloudy. showers likely
and a chance of thunderstorms. waves 2 feet or less.
.friday...north winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
$$
(8/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/21/2026 3:35 PM America/New_York.
Valid through 6/21/2026 11:45 PM America/New_York.
fzus63 kdtx 211935
glflh
expires:202606220345;;141993
open lake forecast for lake huron
national weather service detroit/pontiac mi
335 pm edt sun jun 21 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a compact low pressure system, 29.60 inches, move east
across the ohio valley tonight into tomorrow morning. this will
bring active weather across the southern great lakes. high
pressure, 30.20 inches, will then build in tomorrow night into
tuesday, keeping winds light.
lhz362-363-220345-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
335 pm edt sun jun 21 2026
.tonight...light and variable winds. waves 2 feet or less.
.monday...light and variable winds becoming north 5 to 10 knots
in the afternoon. waves 2 feet or less.
.monday night...north winds 5 to 10 knots becoming northwest
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet building to 2 to 4 feet in the late evening and overnight.
.tuesday...northwest winds 5 to 10 knots. waves 1 to 3 feet.
.tuesday night...light and variable winds. waves 2 feet or less.
.wednesday...light and variable winds becoming southeast 5 to
10 knots late in the afternoon. a chance of showers. waves 2 feet
or less.
.thursday...southeast winds 5 to 10 knots. a chance of showers.
waves 2 feet or less.
.friday...west winds 5 to 10 knots until afternoon becoming light
and variable. waves 2 feet or less.
$$
(9/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/21/2026 3:35 PM America/New_York.
Valid through 6/21/2026 11:45 PM America/New_York.
fzus63 kdtx 211935
glflh
expires:202606220345;;141994
open lake forecast for lake huron
national weather service detroit/pontiac mi
335 pm edt sun jun 21 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...a compact low pressure system, 29.60 inches, move east
across the ohio valley tonight into tomorrow morning. this will
bring active weather across the southern great lakes. high
pressure, 30.20 inches, will then build in tomorrow night into
tuesday, keeping winds light.
lhz462>464-220345-
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-
335 pm edt sun jun 21 2026
.tonight...east winds 5 to 10 knots. a chance of showers after
midnight. waves 2 feet or less.
.monday...east winds 5 to 10 knots backing to the northeast early
in the afternoon...then becoming northeast 5 to 10 knots late in
the afternoon. a chance of showers in the morning. waves 1 to
3 feet.
.monday night...north winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight.
.tuesday...north winds 5 to 10 knots. waves 1 to 3 feet.
.tuesday night...light and variable winds. waves 2 feet or less.
.wednesday...light and variable winds becoming east 5 to 10 knots
late in the afternoon. a chance of showers late in the afternoon.
rain showers likely late in the evening. waves 2 feet or less.
.thursday...southeast winds 5 to 10 knots backing to the
northeast by midnight. showers likely early in the morning. a
chance of thunderstorms until early evening. a chance of showers
. waves 2 feet or less.
.friday...west winds 5 to 10 knots until afternoon becoming light
and variable. waves 2 feet or less.
$$
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