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open lake forecast for lake ontario
national weather service buffalo ny
435 pm edt sat may 16 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 29.4 inch low over the central plains on sunday will 
weaken to 29.7 inches as it moves northeast into the upper great 
lakes sunday night while swinging an attendant warm front across the 
lake. another area of low pressure will develop over the central 
plains monday. the low will weaken from 29.4 inches to 29.6 inches 
as it tracks northeast to the upper great lakes monday night into 
tuesday morning, then to near the southern tip of james bay on 
tuesday. a cold front from this low will cross the lake wednesday. a 
30.4 inch high will build across the great lakes wednesday night 
through thursday.


loz062-170300-
lake ontario open waters from the niagara river to hamlin beach-
435 pm edt sat may 16 2026

.tonight...southwest winds 5 to 15 knots becoming west. patchy
fog after midnight. waves 1 to 3 feet. 
.sunday...west winds 10 knots or less becoming southeast. patchy
fog in the morning. waves 2 feet or less. 
.sunday night...southeast winds 5 to 10 knots becoming east. a
chance of showers. waves 1 foot or less. 
.monday...east winds 10 knots or less becoming southwest and
increasing to 15 to 20 knots in the afternoon. a chance of
showers in the morning. waves 1 to 3 feet. 
.monday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. a chance of showers overnight. waves 1 to 3 feet.
.tuesday...southwest winds 15 to 25 knots. a chance of showers
during the day, then a chance of showers and thunderstorms
tuesday night. waves 2 to 4 feet building to 3 to 5 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of showers and thunderstorms during the day.
waves 3 to 5 feet subsiding to 2 to 4 feet. 
.thursday...north winds 5 to 15 knots diminishing to less than
10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 162035
glflo 
expires:202605170300;;672752

open lake forecast for lake ontario
national weather service buffalo ny
435 pm edt sat may 16 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 29.4 inch low over the central plains on sunday will 
weaken to 29.7 inches as it moves northeast into the upper great 
lakes sunday night while swinging an attendant warm front across the 
lake. another area of low pressure will develop over the central 
plains monday. the low will weaken from 29.4 inches to 29.6 inches 
as it tracks northeast to the upper great lakes monday night into 
tuesday morning, then to near the southern tip of james bay on 
tuesday. a cold front from this low will cross the lake wednesday. a 
30.4 inch high will build across the great lakes wednesday night 
through thursday.


loz063>065-170300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
435 pm edt sat may 16 2026

.tonight...southwest winds 5 to 15 knots becoming west. showers
likely with a chance of thunderstorms early. patchy fog after
midnight. waves 1 to 3 feet. 
.sunday...west winds 5 to 10 knots becoming southwest. patchy fog
in the morning. waves 2 feet or less. 
.sunday night...southeast winds 10 knots or less becoming east. a
chance of showers overnight. waves 1 foot or less. 
.monday...southeast winds 5 to 15 knots becoming south. a chance
of showers in the morning. waves 2 feet or less. 
.monday night...south winds 5 to 15 knots becoming southwest. a
chance of showers. waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers and thunderstorms. waves 1 to
3 feet building to 3 to 5 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest. a
chance of showers during the day. waves 3 to 5 feet. 
.thursday...northwest winds 5 to 15 knots becoming north less
than 10 knots. waves 2 to 4 feet subsiding to 2 feet 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
354 pm edt sat may 16 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 frontal boundary will waver to the north of lake erie through
sunday. the boundary will lift to the north of the region late
sunday into early monday as a cold front slowly approaches from
the west. the front will move east across the lake on wednesday. 
high pressure 30.20 inches will build over the lake on thursday.


lez061-166>169-170215-
ripley to buffalo ny extending from 5nm 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-
354 pm edt sat may 16 2026

.tonight...southwest winds 10 to 15 knots. a slight chance of
showers and thunderstorms early. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.sunday...southwest winds 10 knots or less becoming northeast. a
slight chance of showers and thunderstorms late. waves 2 feet or
less. 
.sunday night...east winds 5 to 15 knots becoming south. waves
2 feet or less. 
.monday...south winds 10 to 15 knots becoming southwest. waves
2 feet or less. 
.monday night...southwest winds 10 to 15 knots. a chance of
showers overnight. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers and thunderstorms during the day,
then showers likely with a chance of thunderstorms tuesday night.
waves 1 to 3 feet building to 2 to 4 feet. 
.wednesday...west winds 10 to 15 knots becoming north 15 to
20 knots. a chance of showers during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.thursday...northeast winds 5 to 15 knots. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$