fzus61 kbuf 050202
glflo 
expires:202607050900;;429589

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm 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 30.2 inch surface high will build from hudson bay 
tonight to quebec and northern new england by 
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. a cold frontal boundary will slide southeast 
across the lake thursday.


loz062-050900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sat jul 4 2026

.overnight...east winds 10 knots or less becoming
northeast. areas of fog. waves 1 foot or less. 
.sunday...northeast winds 5 to 15 knots becoming east. areas of
fog early. waves 1 to 3 feet. 
.sunday night...east winds 5 to 15 knots becoming northeast.
waves 2 feet or less. 
.monday...northeast winds 10 to 15 knots becoming east 15 to
20 knots. a chance of showers. waves 1 to 3 feet. 
.monday night...east winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers in the evening. waves 1 to 3 feet. 
.tuesday...northeast winds 10 knots or less becoming southwest.
waves 2 feet or less. 
.wednesday...southwest winds 10 knots or less. waves 1 foot or
less. 
.thursday...southwest winds 5 to 15 knots becoming west. a chance
of showers. waves 1 foot or less. 

$$

fzus61 kbuf 050202
glflo 
expires:202607050900;;429590

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm 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 30.2 inch surface high will build from hudson bay 
tonight to quebec and northern new england by 
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. a cold frontal boundary will slide southeast 
across the lake thursday.


loz063>065-050900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sat jul 4 2026

.overnight...northeast winds 10 knots or less. areas of fog
after midnight. waves 1 foot or less. 
.sunday...northeast winds 5 to 10 knots. areas of fog early.
waves 1 foot or less. 
.sunday night...northeast winds 5 to 10 knots becoming east. a
chance of showers overnight. waves 2 feet or less. 
.monday...east winds 5 to 15 knots. a chance of showers. waves
2 feet or less. 
.monday night...east winds 5 to 15 knots. a chance of showers.
waves 2 feet or less. 
.tuesday...east winds 10 knots or less becoming southwest. a
chance of showers during the day. waves 1 foot or less. 
.wednesday...southwest winds 5 to 10 knots. waves 1 foot or less.
.thursday...southwest winds 5 to 10 knots becoming west. a chance
of showers. waves 1 foot or less. 

$$

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glfle 
expires:202607050815;;429440

open lake forecast for lake erie
national weather service cleveland oh
959 pm 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 low pressure system 29.90 inches and cold front will enter the 
region tonight. the cold front will cross the lake on sunday, but 
the low pressure system will slowly meander east across the ohio 
river valley through tuesday. high pressure 30.10 inches will build 
from the south on wednesday and remain over the region through 
thursday.


lez061-168-169-050815-
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-
959 pm edt sat jul 4 2026

.rest of tonight...west winds less than 10 knots becoming east. a
slight chance of showers and thunderstorms late this evening. a
slight chance of showers and thunderstorms late. patchy fog late.
waves 1 foot or less. 
.sunday...northeast winds 5 to 10 knots. patchy fog early. a
chance of showers and thunderstorms in the morning, then a slight
chance of showers and thunderstorms early in the afternoon. a
chance of showers with a slight chance of thunderstorms late.
waves 2 feet or less. 
.sunday night...northeast winds 10 to 15 knots. a chance of
showers. waves 1 to 3 feet. 
.monday...northeast winds 10 to 15 knots. a chance of showers in
the morning, then a chance of showers and thunderstorms in the
afternoon. waves 1 to 3 feet. 
.monday night...northeast winds 5 to 15 knots. a chance of
showers and thunderstorms in the evening, then a chance of
showers overnight. waves 1 to 3 feet. 
.tuesday...northeast winds 10 knots or less. waves 2 feet or
less. 
.wednesday...southwest winds 10 knots or less. waves 1 foot or
less. 
.thursday...southwest winds 5 to 10 knots. showers likely with a
chance of thunderstorms thursday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$