fzus61 kbuf 200802
glflo 
expires:202605201500;;336724

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt wed may 20 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...behind a passing cold front this morning, a large 30.4 
inch area of surface high pressure will build across the entire 
great lakes region through thursday, 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 and 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.


loz062-201500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt wed may 20 2026

.today...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...northwest winds 10 to 15 knots becoming north. waves
1 to 3 feet. 
.thursday...northeast winds 5 to 15 knots becoming southeast.
waves 2 feet or less. 
.thursday night...east winds less than 10 knots. waves 1 foot or
less. 
.friday...east winds 15 to 20 knots. showers likely friday night.
waves 1 to 3 feet building to 2 to 4 feet. 
.saturday...east winds to 30 knots becoming southeast and
diminishing to 15 to 20 knots. showers. waves 5 to 8 feet
subsiding to 3 to 6 feet. waves occasionally around 10 feet. 
.sunday...southeast winds 15 to 20 knots diminishing to 5 to
15 knots. showers likely. waves 2 to 4 feet subsiding to 1 to
3 feet. 

$$

fzus63 kdtx 200743
glflh 
expires:202605201600;;336077

open lake forecast for lake huron
national weather service detroit/pontiac mi
343 am edt wed may 20 2026

for waters beyond five nautical miles off shore on lake huron

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 start to build in
over the great lakes this morning then slowly move east across
the region through friday morning. as this occurs, northwest flow
will veer to the northeast and persist into friday.


lhz362-363-201600-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
343 am edt wed may 20 2026

.today...northwest winds 15 to 20 knots veering to the north late
in the afternoon. waves 5 to 7 feet. waves occasionally around
10 feet. 
.tonight...north winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. waves 3 to 5 feet. 
.thursday...northeast winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and afternoon. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon. 
.thursday night...northeast winds 5 to 10 knots. waves 1 to
3 feet. 
.friday...east winds 10 to 15 knots becoming northeast 15 to
20 knots late in the afternoon. a chance of showers late in the
evening. waves 1 to 3 feet building to 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...east winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots. showers likely early in
the morning...then a chance of showers. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.sunday...southeast winds 10 to 15 knots becoming light and
variable. waves 3 to 5 feet subsiding to 1 to 3 feet. 


$$

fzus63 kdtx 200743
glflh 
expires:202605201600;;336078

open lake forecast for lake huron
national weather service detroit/pontiac mi
343 am edt wed may 20 2026

for waters beyond five nautical miles off shore on lake huron

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 start to build in
over the great lakes this morning then slowly move east across
the region through friday morning. as this occurs, northwest flow
will veer to the northeast and persist into friday.


lhz462>464-201600-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
343 am edt wed may 20 2026

.today...north winds 10 to 15 knots. waves 3 to 5 feet. 
.tonight...north winds 10 to 15 knots. waves 3 to 5 feet. 
.thursday...northeast winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and early
afternoon...then building to 2 to 4 feet early in the afternoon. 
.thursday night...north winds 10 to 15 knots veering to the east
after midnight. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.friday...east winds 10 to 15 knots increasing to 15 to 20 knots
with gusts to around 30 knots late in the afternoon. a chance of
showers late in the afternoon. rain showers likely late in the
evening. waves 3 to 5 feet building to 5 to 7 feet late in the
evening. waves occasionally around 10 feet. 
.saturday...east winds 20 to 25 knots with gusts to around
30 knots becoming southeast 10 to 15 knots. showers likely early
in the morning. rain showers in the late morning and early
afternoon...then a chance of showers early in the evening. waves
5 to 7 feet. waves occasionally around 10 feet. 
.sunday...southeast winds 5 to 10 knots backing to the east by
midnight. waves 1 to 3 feet. 


$$