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fzus61 kbuf 182002
glflo 
expires:202507190300;;671780

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt fri jul 18 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 30.2 inch high will drift east into new england 
tonight, then off the new england coast saturday. a 29.7 inch low is 
then forecast to move from the western great lakes late saturday to 
new england by late sunday, with its trailing cold front crossing 
the lake sunday morning. a 30.1 inch high is then forecast to build 
from near james bay monday to new england tuesday, before moving 
offshore on wednesday.


loz062-190300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt fri jul 18 2025

.tonight...southeast winds 10 knots or less becoming south. waves
1 foot or less. 
.saturday...southeast winds 10 knots or less becoming east. waves
1 foot or less. 
.saturday night...southeast winds 5 to 10 knots becoming west.
showers likely in the evening, then showers likely with a chance
of thunderstorms overnight. waves 2 feet or less. 
.sunday...northwest winds 5 to 10 knots. showers likely with a
chance of thunderstorms in the morning. waves 1 to 2 feet. 
.sunday night...northwest winds 15 to 20 knots becoming north.
waves 1 to 3 feet. 
.monday...north winds 5 to 15 knots becoming east. waves 1 to
3 feet subsiding to 1 foot or less. 
.tuesday...east winds 5 to 10 knots becoming southeast. waves
around 1 foot. 
.wednesday...south winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms wednesday night. waves 2 feet
or less. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kbuf 182002
glflo 
expires:202507190300;;671781

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt fri jul 18 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 30.2 inch high will drift east into new england 
tonight, then off the new england coast saturday. a 29.7 inch low is 
then forecast to move from the western great lakes late saturday to 
new england by late sunday, with its trailing cold front crossing 
the lake sunday morning. a 30.1 inch high is then forecast to build 
from near james bay monday to new england tuesday, before moving 
offshore on wednesday.


loz063>065-190300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt fri jul 18 2025

.tonight...southwest winds 10 knots or less becoming south. waves
1 foot or less. 
.saturday...south winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.saturday night...east winds 5 to 10 knots becoming southwest. a
chance of showers in the evening, then showers likely with a
chance of thunderstorms overnight. waves 2 feet or less. 
.sunday...west winds 5 to 10 knots becoming northwest. showers
likely with a chance of thunderstorms in the morning. waves 1 to
2 feet. 
.sunday night...northwest winds 10 to 15 knots becoming north
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.monday...north winds 15 to 20 knots becoming east and
diminishing to 5 to 10 knots. waves 2 to 4 feet subsiding to
2 feet or less. 
.tuesday...east winds 10 knots or less becoming southeast. waves
1 foot or less. 
.wednesday...south winds 5 to 15 knots becoming southwest. a
chance of showers and thunderstorms wednesday night. waves 2 feet
or less. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kbuf 182002
glfsl 
expires:202507190300;;671783

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 pm edt fri jul 18 2025


slz022-024-190300-
saint lawrence river from cape vincent to saint regis
402 pm edt fri jul 18 2025

.tonight...west winds 10 knots or less becoming south. mainly
clear. 
.saturday...south winds 10 knots or less becoming southwest.
mostly sunny through early afternoon, then becoming partly sunny.
.saturday night...southwest winds less than 10 knots becoming
northeast. showers likely in the evening, then showers likely
with a chance of thunderstorms overnight. 
.sunday...north winds 10 knots or less becoming northwest.
showers likely with a chance of thunderstorms in the morning,
then a chance of showers in the afternoon. 
.sunday night...northwest winds less than 10 knots becoming
north. becoming mainly clear. 
.monday...north winds 5 to 10 knots becoming light and variable.
patchy fog monday night. 
.tuesday...light and variable winds. partly cloudy. 
.wednesday...south winds 10 knots or less. a chance of showers
wednesday night. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kcle 181942
glfle 
expires:202507190215;;670729

open lake forecast for lake erie
national weather service cleveland oh
342 pm edt fri jul 18 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...
the lake remains between high pressure 30.10 inches to the
northeast and a stationary front over the ohio valley. this front
will advance north tonight as a warm front and cross the lake for
saturday. a cold front will cross the lake saturday night into
sunday. high pressure 30.10 inches will build from the north for
monday into tuesday. a warm front will cross the lake on
wednesday.


lez061-168-169-190215-
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-
342 pm edt fri jul 18 2025

.tonight...northeast winds 10 knots or less becoming south. waves
1 foot or less. 
.saturday...south winds less than 10 knots becoming west. waves
1 foot or less. 
.saturday night...south winds 10 knots or less becoming west. a
chance of showers and thunderstorms. waves 2 feet or less. 
.sunday...northwest winds 5 to 10 knots. a chance of showers and
thunderstorms in the morning. waves 1 to 2 feet. 
.sunday night...northwest winds 10 to 15 knots becoming north.
waves 1 to 2 feet. 
.monday...northeast winds 5 to 10 knots becoming east. waves
2 feet or less. 
.tuesday...southeast winds 5 to 10 knots becoming south. waves
1 foot or less. 
.wednesday...south winds 5 to 15 knots becoming southwest. a
chance of showers and thunderstorms wednesday night. waves 2 feet
or less. 

winds and waves higher in and near thunderstorms.

$$
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