fzus61 kbuf 211403
glflo 
expires:202605212100;;402969

open lake forecast for lake ontario
national weather service buffalo ny
1003 am 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 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.


loz062-212100-
lake ontario open waters from the niagara river to hamlin beach-
1003 am edt thu may 21 2026

.this afternoon...northeast winds 5 to 15 knots becoming east.
waves 1 to 3 feet. 
.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 5 feet
building to 5 to 8 feet. waves occasionally around 10 feet. 
.sunday...southeast winds 15 to 20 knots becoming southwest and
diminishing to 10 knots or less. showers likely during the day,
then a chance of showers sunday night. waves 3 to 5 feet
subsiding to 1 foot or less. 
.monday...north winds less than 10 knots. a chance of showers
during the day. waves 1 foot or less. 

$$

fzus63 kdtx 211359
glflh 
expires:202605212200;;402762

open lake forecast for lake huron
national weather service detroit/pontiac mi
959 am edt thu may 21 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 slowly build
eastward from the northern great lakes to the eastern great lakes
through friday. northeast wind veers east and strengthens into
saturday as low pressure tracks in from the mid-mississippi
valley.


lhz362-363-212200-
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-
959 am edt thu may 21 2026

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


$$

fzus63 kdtx 211359
glflh 
expires:202605212200;;402763

open lake forecast for lake huron
national weather service detroit/pontiac mi
959 am edt thu may 21 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 slowly build
eastward from the northern great lakes to the eastern great lakes
through friday. northeast wind veers east and strengthens into
saturday as low pressure tracks in from the mid-mississippi
valley.


lhz462>464-212200-
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-
959 am edt thu may 21 2026

.rest of today...northeast winds 10 to 15 knots. waves 2 to
4 feet. 
.tonight...northeast winds 10 to 15 knots veering to the east
early in the morning. waves 2 to 4 feet subsiding to 1 to 3 feet
after midnight. 
.friday...northeast winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet early in the afternoon. 
.friday night...east winds 10 to 15 knots increasing to 15 to
20 knots after midnight. showers likely after midnight. waves
3 to 5 feet. 
.saturday...east winds 20 to 25 knots with gusts to 35 knot gales
becoming southeast 10 to 15 knots late in the evening. showers. a
chance of showers late in the afternoon. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.sunday...southwest winds 5 to 10 knots backing to the southeast
. a chance of showers. waves 2 to 4 feet subsiding to 2 feet or
less. 
.monday...light and variable winds becoming north 5 to 10 knots
early in the evening...then becoming light and variable by
midnight. waves 2 feet or less. 


$$