fzus61 kbuf 030802
glflo 
expires:202607031500;;326185

open lake forecast for lake ontario
national weather service buffalo ny
402 am 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 30.1 inch high will remain in place today from the 
upper ohio valley to the mid atlantic. a weak cold front will settle 
south across the lake this evening, 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.


loz062-031500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt fri jul 3 2026

.today...southwest winds 5 to 15 knots becoming west. a chance of
showers and thunderstorms late this morning. showers and
thunderstorms likely this afternoon. some thunderstorms may
produce gusty winds this afternoon. waves 1 to 2 feet. 
.tonight...west winds 5 to 10 knots. a chance of showers and
thunderstorms early. a chance of showers late. some thunderstorms
may produce gusty winds early. waves 2 feet or less. 
.saturday...west winds 10 knots or less. a chance of showers.
waves 1 foot or less. 
.saturday night...northwest winds 10 knots or less becoming east.
a chance of showers. waves 1 foot or less. 
.sunday...east winds 10 to 15 knots. a chance of showers during
the day, then a chance of showers and thunderstorms sunday night.
waves 1 to 3 feet. 
.monday...east winds 10 to 15 knots. showers likely with a chance
of thunderstorms. waves 1 to 3 feet. 
.tuesday...east winds 10 knots or less becoming west. a chance of
showers during the day. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 030802
glflo 
expires:202607031500;;326186

open lake forecast for lake ontario
national weather service buffalo ny
402 am 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 30.1 inch high will remain in place today from the 
upper ohio valley to the mid atlantic. a weak cold front will settle 
south across the lake this evening, 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.


loz063>065-031500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt fri jul 3 2026

.today...west winds 5 to 15 knots. a chance of showers and
thunderstorms early this afternoon. showers and thunderstorms
likely late. some thunderstorms may produce gusty winds late.
waves 1 to 2 feet. 
.tonight...west winds 5 to 10 knots. showers and thunderstorms
likely early. a chance of showers after midnight. some
thunderstorms may produce gusty winds early. waves 1 to 2 feet. 
.saturday...west winds 5 to 10 knots. a chance of showers. waves
2 feet or less. 
.saturday night...west winds 10 knots or less becoming east.
waves 1 foot or less. 
.sunday...east winds 5 to 10 knots. a chance of showers sunday
night. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots becoming east. showers
likely with a chance of thunderstorms. waves 2 feet or less. 
.tuesday...east winds 10 knots or less becoming southwest. a
chance of showers. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 030802
glfsl 
expires:202607031500;;326230

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


slz022-024-031500-
saint lawrence river from cape vincent to saint regis
402 am edt fri jul 3 2026

.today...southwest winds 10 knots or less. a chance of showers
and thunderstorms this afternoon. some thunderstorms may produce
gusty winds late. 
.tonight...southwest winds 10 knots or less becoming west. a
chance of showers and thunderstorms early. some thunderstorms may
produce gusty winds early. 
.saturday...northwest winds 10 knots or less. becoming mostly
sunny. 
.saturday night...northwest winds less than 10 knots. mainly
clear in the evening, then becoming partly cloudy. 
.sunday...north winds less than 10 knots becoming east. partly to
mostly cloudy. 
.monday...east winds less than 10 knots. a chance of showers. 
.tuesday...east winds less than 10 knots. a chance of showers
during the day. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 031343
glfle 
expires:202607032015;;338480

open lake forecast for lake erie
national weather service cleveland oh
943 am edt fri jul 3 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 currently over the northern great lakes will sag
south onto lake erie saturday night. the front will stall sunday
and monday as low pressure 29.90 inches tracks over or just south
of lake erie. the cold front and low pressure will exit east and
southeast by tuesday as high pressure 30.10 inches builds in.


lez061-169-032015-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
943 am edt fri jul 3 2026

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

winds and waves higher in and near thunderstorms.

$$