fzus61 kbuf 040801
glflo 
expires:202607041500;;385495

open lake forecast for lake ontario
national weather service buffalo ny
401 am edt sat jul 4 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 weak cold front will settle south across the lake 
this afternoon. a 30.2 inch high will then build from hudson bay 
today to quebec and northern new england sunday night. a weak 29.9 
inch low will then develop over ohio late sunday and move to the 
mid atlantic by late monday. a broad 30.1 inch high is then forecast 
to build into the great lakes tuesday through wednesday.


loz063>065-041500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
401 am edt sat jul 4 2026

.today...west winds 10 knots or less. a chance of showers and
thunderstorms this morning, then showers likely with a chance of
thunderstorms this afternoon. waves 1 foot or less. 
.tonight...northwest winds less than 10 knots becoming northeast.
waves 1 foot or less. 
.sunday...northeast winds 5 to 10 knots. waves 1 foot or less. 
.sunday night...northeast winds 5 to 10 knots becoming east.
waves 2 feet or less. 
.monday...east winds 5 to 15 knots. a chance of showers. waves
2 feet or less. 
.tuesday...east winds 10 knots or less becoming south. a chance
of showers. waves 1 foot or less. 
.wednesday...southwest winds 10 knots or less. waves 1 foot or
less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 040203
glfsl 
expires:202607040900;;370856

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1003 pm edt fri jul 3 2026


slz022-024-040900-
saint lawrence river from cape vincent to saint regis
1003 pm edt fri jul 3 2026

.overnight...southwest winds less than 10 knots becoming
west. partly cloudy. 
.saturday...northwest winds less than 10 knots. mostly sunny. 
.saturday night...northwest winds less than 10 knots. partly
cloudy. 
.sunday...north winds less than 10 knots becoming northeast.
partly to mostly sunny. 
.sunday night...northeast winds less than 10 knots becoming east.
mostly cloudy. 
.monday...east winds less than 10 knots. a chance of showers. 
.tuesday...east winds less than 10 knots. a chance of showers. 
.wednesday...southwest winds 10 knots or less. partly cloudy. 

$$

fzus61 kbuf 040202
glflo 
expires:202607040900;;370832

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt fri jul 3 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 weak cold front will settle south across the lake 
tonight, followed by another weak cold front saturday evening. a 
30.2 inch high will then build from hudson bay saturday to quebec 
and northern new england sunday night. a weak 29.9 inch low will 
then develop over the upper ohio valley late sunday and move to the 
mid atlantic by late monday. a broad 30.1 inch high is then forecast 
to build into the great lakes tuesday through wednesday.


loz062-040900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt fri jul 3 2026

.overnight...west winds 5 to 10 knots. a chance of showers,
then showers likely late. waves 1 foot or less. 
.saturday...west winds less than 10 knots becoming southwest. a
chance of showers. waves 1 foot or less. 
.saturday night...east winds 10 knots or less. a chance of
showers. waves 1 foot or less. 
.sunday...east winds 5 to 15 knots. a chance of showers. waves
1 to 3 feet. 
.sunday night...east winds 10 to 15 knots. a chance of showers.
waves 1 to 3 feet. 
.monday...east winds 5 to 15 knots. showers likely with a chance
of thunderstorms during the day, then a chance of showers and
thunderstorms monday night. waves 1 to 3 feet. 
.tuesday...northeast winds 10 knots or less becoming west. a
chance of showers during the day. waves 1 foot or less. 
.wednesday...west winds 10 knots or less becoming southwest.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 040736
glfle 
expires:202607041415;;384867

open lake forecast for lake erie
national weather service cleveland oh
336 am edt sat jul 4 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 will waiver near lake erie through early sunday 
before pushing south on sunday. weak low pressure 29.90 inches 
will track through the northern ohio valley sunday night and 
monday. low pressure exits to the east and southeast on tuesday 
with high pressure 30.10 inches building in through wednesday. 


lez061-168-169-041415-
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-
336 am edt sat jul 4 2026

.today...west winds 5 to 10 knots. a chance of showers and
thunderstorms early, then a chance of showers with a slight
chance of thunderstorms late this morning. a chance of showers
and thunderstorms this afternoon. waves around 1 foot. 
.tonight...southwest winds 10 knots or less becoming east. a
chance of showers and thunderstorms in the evening, then a chance
of showers with a slight chance of thunderstorms after midnight.
waves 1 foot or less. 
.sunday...east winds 5 to 15 knots becoming northeast. a chance
of showers and thunderstorms. waves 2 feet or less. 
.sunday night...northeast winds 10 to 15 knots becoming east. a
chance of showers and thunderstorms. waves 1 to 3 feet. 
.monday...northeast winds 5 to 15 knots. a chance of showers and
thunderstorms during the day, then a chance of showers monday
night. waves 1 to 3 feet. 
.tuesday...northeast winds 10 knots or less. a chance of showers
during the day. waves 1 foot or less. 
.wednesday...northeast winds 10 knots or less becoming south.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$