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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 pm edt sun jun 14 2026


slz022-024-150300-
saint lawrence river from cape vincent to saint regis
403 pm edt sun jun 14 2026

.tonight...southwest winds 5 to 15 knots becoming west. showers
with a chance of thunderstorms early, then showers likely late
this evening. a chance of showers after midnight. 
.monday...west winds 5 to 10 knots. partly to mostly sunny. 
.monday night...southwest winds 10 knots or less. partly cloudy. 
.tuesday...southwest winds 5 to 10 knots. sunny.
.tuesday night...southwest winds 10 knots or less becoming south.
mainly clear in the evening, then becoming partly cloudy. 
.wednesday...south winds 5 to 10 knots. showers likely with a
chance of thunderstorms. 
.thursday...southeast winds 15 to 20 knots becoming southwest.
showers with a chance of thunderstorms. 
.friday...southwest winds 5 to 15 knots becoming west. a chance
of showers. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 142002
glflo 
expires:202606150300;;746861

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun jun 14 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 cold front will drop south of the lower great lakes 
following the front, a 29.9 inch high will build across the region 
through monday, then exit off to our northeast tuesday while 
weakening to 29.8 inches. a 29.4 inch low will then track north of 
the lake on wednesday, with its trailing cold front approaching the 
lake late in the day on wednesday. a second 29.4 inch surface low 
will pass across the upper great lakes thursday, with a warm front, 
followed by a cold front to sweep across the lake throughout the day.


loz062-150300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt sun jun 14 2026

...severe thunderstorm watch 334 in effect until 10 pm edt this
evening...

.tonight...south winds 15 to 25 knots becoming northwest. showers
likely early, then a chance of showers late this evening. waves
1 to 3 feet building to 3 to 5 feet. 
.monday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday night...southwest winds 5 to 10 knots. waves 1 to 2 feet.
.tuesday...southwest winds 10 to 15 knots. waves 2 feet or less. 
.tuesday night...southwest winds 5 to 15 knots becoming south. a
chance of showers overnight. waves 2 feet or less. 
.wednesday...south winds 10 to 15 knots becoming southeast 15 to
20 knots. a chance of showers during the day, then showers with a
chance of thunderstorms wednesday night. waves 1 to 3 feet. 
.thursday...south winds to 30 knots becoming west. showers with a
chance of thunderstorms during the day, then a chance of showers
thursday night. waves 4 to 7 feet building to 7 to 10 feet, then
subsiding to 5 to 8 feet. waves occasionally around 13 feet. 
.friday...west winds 15 to 20 knots. waves 4 to 7 feet subsiding
to 2 to 4 feet. waves occasionally around 9 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 142002
glflo 
expires:202606150300;;746862

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun jun 14 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 cold front will drop south of the lower great lakes 
following the front, a 29.9 inch high will build across the region 
through monday, then exit off to our northeast tuesday while 
weakening to 29.8 inches. a 29.4 inch low will then track north of 
the lake on wednesday, with its trailing cold front approaching the 
lake late in the day on wednesday. a second 29.4 inch surface low 
will pass across the upper great lakes thursday, with a warm front, 
followed by a cold front to sweep across the lake throughout the day.


loz063>065-150300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sun jun 14 2026

...severe thunderstorm watch 334 in effect until 10 pm edt this
evening...

.tonight...southeast winds 15 to 25 knots becoming northwest.
showers with a chance of thunderstorms early, then a chance of
showers late this evening. some thunderstorms may be severe with
strong winds and large hail. waves 1 to 3 feet building to 3 to
5 feet. 
.monday...west winds 15 to 20 knots. waves 3 to 5 feet. 
.monday night...west winds 15 to 20 knots becoming southwest 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 2 feet. 
.tuesday...south winds 5 to 10 knots. waves 2 feet or less. 
.tuesday night...south winds 5 to 15 knots. waves 2 feet or less.
.wednesday...south winds 5 to 15 knots becoming southeast 15 to
20 knots. showers likely with a chance of thunderstorms. waves
1 to 3 feet. 
.thursday...southeast winds to 30 knots becoming west. showers
with a chance of thunderstorms during the day, then a chance of
showers thursday night. waves 4 to 7 feet building to 7 to
11 feet. waves occasionally around 14 feet. 
.friday...west winds 15 to 25 knots. waves 6 to 9 feet subsiding
to 3 to 6 feet. waves occasionally around 11 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 141950
glfle 
expires:202606150230;;746438

open lake forecast for lake erie
national weather service cleveland oh
350 pm edt sun jun 14 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a cold front continues to sweep southeastward across lake erie
through this late afternoon. behind the front, a high pressure 
ridge averaging 30.00 inches builds from the northern great plains
and vicinity through monday before the ridge begins to exit 
eastward on tuesday through wednesday. during wednesday night 
through thursday, a potent low should wobble east-northeastward 
from the upper mississippi valley to southern quebec and deepen to
around 29.10 inches. accordingly, a warm front should sweep 
northeastward across lake erie wednesday night and be followed by 
the eastward passage of a cold front on thursday. behind the cold 
front, a ridge should build slowly from the north-central united 
states through friday and average 29.80 inches over lake erie.


lez061-150230-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
350 pm edt sun jun 14 2026

.tonight...northwest winds 5 to 15 knots. showers with a chance
of thunderstorms early, then a chance of showers late this
evening. waves 1 to 2 feet. 
.monday...northwest winds around 10 knots becoming southwest.
waves 1 to 2 feet. 
.monday night...southwest winds around 10 knots. waves 1 to
2 feet. 
.tuesday...southwest winds 5 to 15 knots. waves 1 to 2 feet. 
.tuesday night...southwest winds 10 knots or less becoming south
10 to 15 knots. a chance of showers overnight. waves 1 to 2 feet.
.wednesday...southwest winds 5 to 15 knots becoming southeast and
increasing to 15 to 25 knots. a chance of showers during the day,
then showers with a chance of thunderstorms wednesday night.
waves 1 to 3 feet. 
.thursday...south winds to 30 knots becoming west and diminishing
to 10 to 15 knots. showers likely with a chance of thunderstorms
during the day. waves 5 to 8 feet building to 7 to 10 feet, then
subsiding to 3 to 5 feet. waves occasionally around 13 feet. 
.friday...west winds 10 to 15 knots. waves 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$