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Latest Great Lakes Marine Forecast by KBUF
Issued 4/7/2026 4:05 AM America/New_York.
Valid through 4/7/2026 11:00 AM America/New_York.
fzus61 kbuf 070805
glflo
expires:202604071500;;967253
open lake forecast for lake ontario
national weather service buffalo ny
405 am edt tue apr 7 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 29.9 inch clipper low will cross lake ontario early
this morning, then slide off the new england coast today. a 30.6
inch high will then build from the central great lakes to the new
england coastline through wednesday, before moving southeast of
nova scotia thursday. a cold front will cross the lake friday, with
a 30.5 inch high then forecast to build east across the great lakes
saturday.
loz062-071500-
lake ontario open waters from the niagara river to hamlin beach-
405 am edt tue apr 7 2026
.today...northwest winds to 30 knots diminishing to 15 to
20 knots. snow showers likely early, then a chance of snow
showers late this morning. waves 5 to 9 feet subsiding to 3 to
5 feet. waves occasionally around 11 feet.
.tonight...northwest winds 15 to 20 knots becoming southwest and
diminishing to less than 10 knots after midnight. waves 1 to
3 feet subsiding to 1 foot or less.
.wednesday...south winds 10 knots or less becoming east 10 to
15 knots. waves 2 feet or less.
.wednesday night...east winds 10 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet.
.thursday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of showers. waves 3 to 5 feet subsiding to
1 to 3 feet.
.friday...west winds 5 to 10 knots becoming northwest. rain
showers likely during the day, then a chance of rain showers
friday night. waves 2 feet or less.
.saturday...northwest winds 10 knots or less becoming southeast.
waves 1 foot or less.
$$
(2/2)
Latest Great Lakes Marine Forecast by KBUF
Issued 4/7/2026 4:05 AM America/New_York.
Valid through 4/7/2026 11:00 AM America/New_York.
fzus61 kbuf 070805
glflo
expires:202604071500;;967254
open lake forecast for lake ontario
national weather service buffalo ny
405 am edt tue apr 7 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a 29.9 inch clipper low will cross lake ontario early
this morning, then slide off the new england coast today. a 30.6
inch high will then build from the central great lakes to the new
england coastline through wednesday, before moving southeast of
nova scotia thursday. a cold front will cross the lake friday, with
a 30.5 inch high then forecast to build east across the great lakes
saturday.
loz063>065-071500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
405 am edt tue apr 7 2026
.today...west winds to 30 knots becoming northwest 15 to
25 knots. snow showers early, then a chance of snow showers.
waves 7 to 11 feet subsiding to 3 to 6 feet. waves occasionally
around 14 feet.
.tonight...northwest winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet.
.wednesday...southwest winds 10 knots or less becoming east.
waves 1 foot or less.
.wednesday night...southeast winds 10 to 15 knots becoming south
and increasing to 15 to 25 knots. waves 1 to 3 feet building to
3 to 6 feet.
.thursday...south winds 15 to 25 knots becoming southwest. a
chance of rain showers. waves 3 to 6 feet subsiding to 2 to
4 feet.
.friday...south winds 5 to 15 knots becoming northwest. a chance
of rain showers. waves 2 feet or less.
.saturday...northwest winds 5 to 15 knots becoming south less
than 10 knots. waves 2 feet or less.
$$
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