fzus61 kbuf 210203
glflo 
expires:202605210900;;376016

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm 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...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 through tuesday.


loz062-210900-
lake ontario open waters from the niagara river to hamlin beach-
1003 pm edt wed may 20 2026

.overnight...northwest winds 10 to 15 knots becoming
northeast 15 to 20 knots. waves 1 to 3 feet. 
.thursday...northeast winds 15 to 20 knots becoming southeast
5 to 15 knots. waves 2 to 4 feet subsiding to 1 to 2 feet. 
.thursday night...east winds 10 knots or less. waves 1 foot or
less. 
.friday...east winds 5 to 10 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 5 to 8 feet
subsiding to 3 to 6 feet. waves occasionally around 10 feet. 
.sunday...southeast winds 5 to 15 knots becoming south. showers
likely during the day, then a chance of showers sunday night.
waves 2 to 4 feet subsiding to 2 feet or less. 
.monday...southwest winds 10 knots or less becoming west. a
chance of showers during the day. waves 1 foot or less. 

$$

fzus63 kdtx 210149
glflh 
expires:202605211000;;375560

open lake forecast for lake huron
national weather service detroit/pontiac mi
949 pm 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 continue to build
over the great lakes this evening then slowly move east across
the region through friday morning. as this occurs, northwest flow
will veer to the northeast and persist into friday.


lhz362-363-211000-
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-
949 pm edt wed may 20 2026

.rest of tonight...north winds 10 to 15 knots. waves 3 to 5 feet.
.thursday...northeast winds 10 to 15 knots decreasing to 5 to
10 knots in the 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. waves 1 to 3 feet building
to 2 to 4 feet early in the afternoon. 
.friday night...east winds 15 to 20 knots. gusts to 30 knots
after midnight. a chance of showers after midnight. waves 5 to
7 feet. waves occasionally around 10 feet. 
.saturday...east winds 20 to 25 knots with gusts to 35 knot gales
becoming southeast 10 to 15 knots. showers in the morning. rain
showers likely late in the morning...then a chance of showers
late in the evening. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.sunday...southeast winds 5 to 10 knots. waves 3 to 5 feet
subsiding to 1 to 3 feet . 
.monday...northwest winds 5 to 10 knots veering to the north
early in the evening...then veering to the southeast by midnight.
waves 2 feet or less. 


$$

fzus63 kdtx 210149
glflh 
expires:202605211000;;375561

open lake forecast for lake huron
national weather service detroit/pontiac mi
949 pm 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 continue to build
over the great lakes this evening 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>464-211000-
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-
949 pm edt wed may 20 2026

.rest of tonight...north winds 5 to 10 knots increasing to 10 to
15 knots after midnight. waves 3 to 5 feet. 
.thursday...north winds 10 to 15 knots becoming northeast 5 to
10 knots late in the morning...then becoming north 10 to 15 knots
in the afternoon. 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 late 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. waves 2 to 4 feet. 
.friday night...northeast winds 10 to 15 knots becoming east
20 to 25 knots with gusts to around 30 knots. showers likely
after midnight. waves 4 to 6 feet. 
.saturday...east winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots late in the afternoon...
then becoming southeast 5 to 10 knots late in the evening.
showers. rain showers likely late in the afternoon...then a
chance of showers late in the evening. waves 5 to 7 feet
subsiding to 2 to 4 feet late in the evening. waves occasionally
around 10 feet. 
.sunday...southeast winds 5 to 10 knots. a chance of showers
until early evening. waves 2 feet or less. 
.monday...light and variable winds becoming north 5 to 10 knots
until early evening...then veering to the northeast by midnight.
waves 2 feet or less. 


$$