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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 am edt thu jul 2 2026


slz022-024-021500-
saint lawrence river from cape vincent to saint regis
403 am edt thu jul 2 2026

.today...southwest winds 5 to 15 knots. a chance of showers and
thunderstorms this afternoon. 
.tonight...southwest winds 10 knots or less. a chance of showers
and thunderstorms early. 
.friday...southwest winds 10 knots or less. a chance of showers
and thunderstorms in the afternoon. 
.friday night...southwest winds 10 knots or less. a chance of
showers and thunderstorms in the evening, then a chance of
showers overnight. 
.saturday...west winds less than 10 knots. a chance of showers. 
.sunday...northeast winds less than 10 knots becoming east. a
chance of showers sunday night. 
.monday...east winds less than 10 knots. a chance of showers. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt thu jul 2 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 remain anchored from the ohio 
valley to the mid atlantic through friday. a weak cold front will 
move slowly southward across the lake saturday and saturday night. 
behind the front, a 30.2 inch high will build from near james bay 
sunday to quebec and northern new england by monday.


loz062-021500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt thu jul 2 2026

.today...southwest winds 10 to 15 knots. a chance of showers and
thunderstorms late. waves 1 to 3 feet. 
.tonight...southwest winds 10 to 15 knots. a chance of showers
and thunderstorms in the evening. waves 1 to 3 feet. 
.friday...southwest winds 5 to 15 knots becoming west. a chance
of showers in the morning, then showers likely with a chance of
thunderstorms in the afternoon. waves 1 to 2 feet. 
.friday night...west winds 5 to 15 knots. showers likely with a
chance of thunderstorms in the evening, then showers likely
overnight. waves 1 to 2 feet. 
.saturday...west winds 5 to 10 knots becoming northeast. a chance
of showers. waves 1 foot or less. 
.sunday...east winds 5 to 15 knots. a chance of showers. waves
2 feet or less. 
.monday...northeast 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.

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt thu jul 2 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 remain anchored from the ohio 
valley to the mid atlantic through friday. a weak cold front will 
move slowly southward across the lake saturday and saturday night. 
behind the front, a 30.2 inch high will build from near james bay 
sunday to quebec and northern new england by monday.


loz063>065-021500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt thu jul 2 2026

.today...southwest winds 5 to 15 knots becoming west. waves 1 to
3 feet. 
.tonight...west winds 5 to 15 knots. a chance of showers and
thunderstorms in the evening. waves 1 to 3 feet. 
.friday...west winds 5 to 15 knots. a chance of showers in the
morning, then a chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet. 
.friday night...west winds 5 to 15 knots. showers likely with a
chance of thunderstorms. waves 1 to 2 feet. 
.saturday...west winds 10 knots or less becoming north. showers
likely during the day, then a chance of showers saturday night.
waves 2 feet or less. 
.sunday...northeast winds 10 knots or less becoming east. a
chance of showers sunday night. waves 1 foot or less. 
.monday...east winds 5 to 10 knots. a chance of showers. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
352 am edt thu jul 2 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 ridge averaging 30.00 inches will remain over the area through 
friday night. a weak trough averaging 29.90 inches will settle 
south of lake erie friday night into saturday and stall. low 
pressure of 29.90 inches will track slowly east across lake erie 
sunday through monday night.


lez061-165>169-021415-
ripley to buffalo ny extending from 5nm 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-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-
352 am edt thu jul 2 2026

.today...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.tonight...southwest winds 5 to 10 knots. a slight chance of
showers and thunderstorms. waves 1 to 3 feet. 
.friday...southwest winds 5 to 15 knots. waves 2 feet or less. 
.friday night...southwest winds 5 to 10 knots. showers likely
with a chance of thunderstorms. waves 1 to 2 feet. 
.saturday...west winds 10 knots or less becoming east. a chance
of showers during the day, then showers likely with a chance of
thunderstorms saturday night. waves 1 foot or less. 
.sunday...southeast winds 5 to 10 knots becoming southwest.
showers likely with a chance of thunderstorms during the day,
then a chance of showers and thunderstorms sunday night. waves
2 feet or less. 
.monday...northwest winds 5 to 10 knots becoming northeast. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$