fzus61 kbuf 212003
glflo 
expires:202605220300;;417232

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt thu may 21 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 large 30.4 inch area of surface high pressure will 
build across the entire great lakes region through tonight, before 
sliding east off the new england coast late friday. this surface 
high will then strengthen to 30.6 inches as it anchors over atlantic 
canada through sunday. a 29.9 inch low an attendant warm front will 
then slowly approach the lake late friday night and saturday, before 
weakening and sliding eastward sunday. a 30.1 inch high will settle 
across the region monday through tuesday. a cold front associated 
with a 29.8 inch low over new england will drop south across the 
lake on wednesday.


loz062-220300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt thu may 21 2026

.tonight...east winds 10 knots or less. waves 1 foot or less. 
.friday...east winds 10 to 15 knots increasing to 15 to 20 knots.
waves 1 to 3 feet building to 2 to 4 feet. 
.friday night...east winds 15 to 20 knots. a chance of showers
overnight. waves 2 to 4 feet. 
.saturday...east winds 15 to 25 knots. showers. waves 3 to 6 feet
building to 4 to 7 feet. waves occasionally around 9 feet. 
.saturday night...east winds 15 to 25 knots. showers. waves 5 to
8 feet. waves occasionally around 10 feet. 
.sunday...southeast winds 15 to 20 knots becoming southwest and
diminishing to less than 10 knots. showers during the day, then a
chance of showers sunday night. waves 3 to 6 feet subsiding to
2 feet or less. 
.monday...light and variable winds. a chance of showers during
the day. waves 1 foot or less. 
.tuesday...west winds less than 10 knots. waves 1 foot or less. 

$$

fzus61 kbuf 212003
glflo 
expires:202605220300;;417233

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt thu may 21 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 large 30.4 inch area of surface high pressure will 
build across the entire great lakes region through tonight, before 
sliding east off the new england coast late friday. this surface 
high will then strengthen to 30.6 inches as it anchors over atlantic 
canada through sunday. a 29.9 inch low an attendant warm front will 
then slowly approach the lake late friday night and saturday, before 
weakening and sliding eastward sunday. a 30.1 inch high will settle 
across the region monday through tuesday. a cold front associated 
with a 29.8 inch low over new england will drop south across the 
lake on wednesday.


loz063>065-220300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt thu may 21 2026

.tonight...northwest winds 5 to 10 knots becoming northeast.
waves 1 foot or less. 
.friday...northeast winds 5 to 15 knots. waves 1 to 3 feet. 
.friday night...northeast winds 10 to 15 knots becoming east.
waves 1 to 3 feet. 
.saturday...east winds 10 to 15 knots becoming southeast and
increasing to 15 to 25 knots. showers. waves 1 to 3 feet building
to 3 to 5 feet. 
.saturday night...southeast winds 15 to 25 knots. showers. waves
3 to 6 feet. 
.sunday...southeast winds 15 to 25 knots becoming south. showers
during the day, then a chance of showers sunday night. waves 3 to
6 feet subsiding to 1 to 3 feet. 
.monday...southwest winds 5 to 10 knots becoming light and
variable. a chance of showers during the day. waves 2 feet or
less. 
.tuesday...west winds 10 knots or less. waves 1 foot or less. 

$$

fzus61 kcle 211945
glfle 
expires:202605220215;;416692

open lake forecast for lake erie
national weather service cleveland oh
345 pm edt thu may 21 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...
high pressure 30.40 inches will shift northeast of lake erie
during the day friday. low pressure 30.00 inches will lift
northeast from the ohio valley friday night into saturday with a
warm front lifting across the lake by late saturday. a cold front
will move east across the lake sunday before high pressure 30.00
inches builds over the region as the front slows over the ohio 
valley early next week.


lez164>168-220215-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm 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-
345 pm edt thu may 21 2026

.tonight...northeast winds 15 to 25 knots becoming east. waves
5 to 8 feet. waves occasionally around 10 feet. 
.friday...east winds 15 to 25 knots. waves 5 to 8 feet. waves
occasionally around 10 feet. 
.friday night...east winds 15 to 25 knots. a chance of showers
overnight. waves 5 to 8 feet subsiding to 3 to 6 feet. waves
occasionally around 10 feet. 
.saturday...east winds 15 to 20 knots becoming southeast.
showers. waves 3 to 6 feet. 
.saturday night...southeast winds 15 to 20 knots becoming south
10 to 15 knots. showers. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.sunday...southwest winds 10 knots or less becoming southeast. a
chance of showers sunday night. waves 2 feet or less. 
.monday...northeast winds less than 10 knots becoming east. waves
1 foot or less. 
.tuesday...east winds less than 10 knots becoming southeast.
waves 1 foot or less. 

$$

fzus61 kcle 211945
glfle 
expires:202605220215;;416693

open lake forecast for lake erie
national weather service cleveland oh
345 pm edt thu may 21 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...
high pressure 30.40 inches will shift northeast of lake erie
during the day friday. low pressure 30.00 inches will lift
northeast from the ohio valley friday night into saturday with a
warm front lifting across the lake by late saturday. a cold front
will move east across the lake sunday before high pressure 30.00
inches builds over the region as the front slows over the ohio 
valley early next week.


lez061-169-220215-
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-
345 pm edt thu may 21 2026

.tonight...northeast winds 15 to 20 knots becoming east. waves
3 to 5 feet. 
.friday...east winds 15 to 20 knots becoming northeast. waves
3 to 6 feet. 
.friday night...northeast winds 15 to 20 knots becoming east. a
chance of showers overnight. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.saturday...east winds 15 to 20 knots. showers. waves 2 to
4 feet. 
.saturday night...southeast winds 15 to 20 knots. showers. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...south winds 10 to 15 knots becoming light and variable.
a chance of showers. waves 2 feet or less. 
.monday...light and variable winds. waves 1 foot or less. 
.tuesday...light and variable winds. waves 1 foot or less. 

$$