fzus61 kbuf 181402
glflo 
expires:202606182100;;958959

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt thu jun 18 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...an unseasonably strong low over southern ontario this 
morning will track to southern quebec this afternoon, deepening to 
29.1 inches. the trailing cold front will move across the lake 
today. this low will move slowly east to the canadian maritimes 
friday while filling to 29.4 inches, eventually moving east of 
newfoundland by saturday night. a weak ridge of high pressure 
averaging 29.9 inches will then build into the great lakes saturday 
night through sunday. a 29.7 inch low is then forecast to move over 
or just south of the lower great lakes monday before moving off the 
new england coast by tuesday.


loz062-182100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt thu jun 18 2026

.rest of today...southwest winds 20 to 25 knots becoming west. a
chance of showers. waves 5 to 8 feet. waves occasionally around
10 feet. 
.tonight...west winds 15 to 25 knots. waves 5 to 8 feet subsiding
to 3 to 6 feet. waves occasionally around 10 feet. 
.friday...west winds 15 to 25 knots. waves 3 to 6 feet. 
.friday night...west winds 15 to 20 knots. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.saturday...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...west winds 10 knots or less becoming east. a chance of
showers sunday night. waves 1 foot or less. 
.monday...northeast winds 5 to 15 knots becoming northwest. a
chance of showers during the day. waves 2 feet or less. 

$$

fzus61 kbuf 181402
glflo 
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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt thu jun 18 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...an unseasonably strong low over southern ontario this 
morning will track to southern quebec this afternoon, deepening to 
29.1 inches. the trailing cold front will move across the lake 
today. this low will move slowly east to the canadian maritimes 
friday while filling to 29.4 inches, eventually moving east of 
newfoundland by saturday night. a weak ridge of high pressure 
averaging 29.9 inches will then build into the great lakes saturday 
night through sunday. a 29.7 inch low is then forecast to move over 
or just south of the lower great lakes monday before moving off the 
new england coast by tuesday.


loz063>065-182100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt thu jun 18 2026

.rest of today...southwest winds to 30 knots becoming west.
showers likely with a chance of thunderstorms late this morning,
then a chance of showers this afternoon. waves 5 to 9 feet. waves
occasionally around 11 feet. 
.tonight...west winds to 30 knots. waves 6 to 9 feet. waves
occasionally around 11 feet. 
.friday...west winds 20 to 25 knots. waves 6 to 9 feet. waves
occasionally around 11 feet. 
.friday night...west winds 15 to 25 knots. waves 5 to 9 feet
subsiding to 4 to 7 feet. waves occasionally around 11 feet. 
.saturday...west winds 15 to 20 knots diminishing to 5 to
10 knots. waves 4 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 9 feet. 
.sunday...west winds 10 knots or less becoming south. a chance of
showers sunday night. waves 2 feet or less. 
.monday...east winds 5 to 10 knots becoming northwest. a chance
of showers. waves 1 foot 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
1016 am edt thu jun 18 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 sweep eastward across central and eastern
portions of lake erie through about midday today. behind the
front, a trough averaging 29.60 inches lingers over the lake 
through friday before a high pressure ridge averaging 30.00 inches
overspreads lake erie from the west on saturday through sunday. 
during sunday night through monday, a trough averaging 29.80 
inches should impact lake erie as the parent low wobbles east- 
northeastward from near the central great plains to near central 
pennsylvania and deepens to 29.60 inches. behind the low, a ridge 
averaging 30.00 inches should build from the north-central united 
states and vicinity monday night through this tuesday. 


lez165>168-182030-
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-
1016 am edt thu jun 18 2026

...gale warning in effect until 6 pm edt this evening...

.this afternoon...west gales to 35 knots. a slight chance of
showers late. waves 9 to 12 feet. waves occasionally around
15 feet. 
.tonight...west winds 15 to 25 knots diminishing to 10 to
15 knots. waves 6 to 9 feet subsiding to 2 to 4 feet. waves
occasionally around 11 feet. 
.friday...west winds 10 to 15 knots. waves 2 to 4 feet. 
.friday night...west winds 10 to 15 knots becoming northwest.
waves 1 to 3 feet. 
.saturday...west winds 5 to 10 knots becoming northwest. waves
1 to 3 feet. 
.sunday...north winds less than 10 knots becoming northeast and
increasing to 15 to 20 knots. a chance of showers during the day,
then showers likely sunday night. waves 1 to 3 feet. 
.monday...northeast winds 15 to 20 knots becoming north 10 to
15 knots. a chance of showers during the day. waves 3 to 5 feet
subsiding to 1 to 3 feet. 

$$

fzus61 kcle 181416
glfle 
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open lake forecast for lake erie
national weather service cleveland oh
1016 am edt thu jun 18 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 sweep eastward across central and eastern
portions of lake erie through about midday today. behind the
front, a trough averaging 29.60 inches lingers over the lake 
through friday before a high pressure ridge averaging 30.00 inches
overspreads lake erie from the west on saturday through sunday. 
during sunday night through monday, a trough averaging 29.80 
inches should impact lake erie as the parent low wobbles east- 
northeastward from near the central great plains to near central 
pennsylvania and deepens to 29.60 inches. behind the low, a ridge 
averaging 30.00 inches should build from the north-central united 
states and vicinity monday night through this tuesday. 


lez061-169-182030-
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-
1016 am edt thu jun 18 2026

...gale warning in effect until 6 pm edt this evening...

.this afternoon...southwest winds to 30 knots becoming west. a
slight chance of showers and thunderstorms. waves 9 to 13 feet.
waves occasionally around 16 feet. 
.tonight...west winds 15 to 25 knots diminishing to 10 to
15 knots. a slight chance of showers and thunderstorms early,
then a slight chance of showers late in the evening. waves 7 to
10 feet subsiding to 3 to 5 feet. waves occasionally around
13 feet. 
.friday...west winds 10 to 15 knots increasing to 15 to 20 knots.
waves 2 to 4 feet. 
.friday night...west winds 15 to 20 knots becoming northwest and
diminishing to around 10 knots. waves 2 to 4 feet subsiding to
1 to 2 feet. 
.saturday...west winds 5 to 15 knots diminishing to less than
10 knots. waves 1 to 2 feet. 
.sunday...northwest winds 10 knots or less becoming east. a
chance of showers sunday night. waves 1 foot or less. 
.monday...northeast winds 5 to 15 knots becoming north. a chance
of showers during the day. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$