fzus61 kbuf 210802
glflo 
expires:202609211500;;807493

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt mon sep 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...
an expansive 30.4 inch high over ontario province will build east 
across quebec and strengthen to 30.7 inches through wednesday. the 
high will then slowly retrograde westward to the upper great lakes 
and weaken to 30.4 inches thursday and friday while a 29.3 inch low 
develops and moves northward off the mid-atlantic coastline.


loz062-211500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt mon sep 21 2026

.today...northeast winds 15 to 20 knots. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.tonight...northeast winds 15 to 20 knots. waves 2 to 4 feet
building to 3 to 6 feet. 
.tuesday...northeast winds 20 to 25 knots becoming east. waves
5 to 8 feet. waves occasionally around 10 feet. 
.tuesday night...east winds 15 to 25 knots. waves 4 to 7 feet.
waves occasionally around 9 feet. 
.wednesday...east winds 15 to 20 knots. waves 4 to 6 feet
subsiding to 2 to 4 feet. 
.thursday...east winds 10 to 15 knots becoming northeast around
10 knots. waves 2 to 4 feet subsiding to 1 to 2 feet. 
.friday...northeast winds 5 to 15 knots becoming north. waves
2 feet or less. 

$$

fzus61 kbuf 210802
glflo 
expires:202609211500;;807494

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt mon sep 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...
an expansive 30.4 inch high over ontario province will build east 
across quebec and strengthen to 30.7 inches through wednesday. the 
high will then slowly retrograde westward to the upper great lakes 
and weaken to 30.4 inches thursday and friday while a 29.3 inch low 
develops and moves northward off the mid-atlantic coastline.


loz063>065-211500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt mon sep 21 2026

.today...northeast winds 15 to 20 knots. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.tonight...northeast winds 15 to 20 knots. waves 2 to 4 feet
building to 3 to 6 feet. 
.tuesday...northeast winds 15 to 20 knots. waves 3 to 6 feet. 
.tuesday night...northeast winds 15 to 20 knots becoming east.
waves 3 to 6 feet. 
.wednesday...east winds 15 to 20 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.thursday...east winds 10 to 15 knots becoming northeast. waves
1 to 3 feet. 
.friday...northeast winds 10 to 15 knots becoming north. waves
1 to 3 feet. 

$$

fzus61 kcle 210750
glfle 
expires:202609211415;;807206

open lake forecast for lake erie
national weather service cleveland oh
350 am edt mon sep 21 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...
lake erie will reside be between high pressure 30.40 inches to 
the north and low pressure 29.90 inches over the ohio valley for
at least the first half of the week. high pressure 30.20 inches 
will expand south over lake erie thursday night into friday and
persist through the weekend. 


lez164>168-211415-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
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-
350 am edt mon sep 21 2026

.today...east winds 20 to 25 knots becoming northeast. a slight
chance of showers. waves 5 to 9 feet. waves occasionally around
11 feet. 
.tonight...northeast winds to 30 knots becoming east. a slight
chance of showers through the early overnight. waves 6 to 9 feet.
waves occasionally around 11 feet. 
.tuesday...east winds to 30 knots. waves 6 to 9 feet. waves
occasionally around 11 feet. 
.tuesday night...east winds to 30 knots diminishing to 15 to
25 knots. a chance of showers overnight. waves 5 to 9 feet. waves
occasionally around 11 feet. 
.wednesday...east winds 15 to 25 knots. a chance of showers
during the day. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.thursday...east winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.friday...northeast winds 10 to 15 knots. waves 1 to 3 feet. 

$$

fzus61 kcle 210750
glfle 
expires:202609211415;;807205

open lake forecast for lake erie
national weather service cleveland oh
350 am edt mon sep 21 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...
lake erie will reside be between high pressure 30.40 inches to 
the north and low pressure 29.90 inches over the ohio valley for
at least the first half of the week. high pressure 30.20 inches 
will expand south over lake erie thursday night into friday and
persist through the weekend. 


lez162-163-211415-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
350 am edt mon sep 21 2026

.today...northeast winds 20 to 25 knots. a chance of showers. 
waves 3 to 6 feet building to 5 to 8 feet. waves occasionally 
around 10 feet. 
.tonight...northeast winds 20 to 25 knots. a slight chance of
showers. a slight chance of waterspouts after midnight. waves
5 to 8 feet. waves occasionally around 10 feet. 
.tuesday...northeast winds to 30 knots. waves 5 to 8 feet. waves
occasionally around 10 feet. 
.tuesday night...northeast winds to 30 knots becoming east. a
chance of showers. waves 5 to 8 feet. waves occasionally around
10 feet. 
.wednesday...east winds 15 to 25 knots. a chance of showers
during the day. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.thursday...east winds 15 to 20 knots becoming northeast 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...northeast winds 10 to 15 knots. waves 1 to 3 feet. 

$$

fzus61 kcle 210750
glfle 
expires:202609211415;;807207

open lake forecast for lake erie
national weather service cleveland oh
350 am edt mon sep 21 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...
lake erie will reside be between high pressure 30.40 inches to 
the north and low pressure 29.90 inches over the ohio valley for
at least the first half of the week. high pressure 30.20 inches 
will expand south over lake erie thursday night into friday and
persist through the weekend. 


lez061-169-211415-
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-
350 am edt mon sep 21 2026

.today...northeast winds 15 to 25 knots. waves 3 to 6 feet
building to 4 to 7 feet, then subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.tonight...northeast winds 20 to 25 knots becoming east. waves
4 to 7 feet. waves occasionally around 9 feet. 
.tuesday...east winds 15 to 25 knots becoming northeast. waves
4 to 7 feet. waves occasionally around 9 feet. 
.tuesday night...east winds 15 to 25 knots. a chance of showers
overnight. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.wednesday...east winds 15 to 20 knots. a chance of showers
during the day. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...east winds 10 to 15 knots. waves 1 to 3 feet. 
.friday...northeast winds 5 to 15 knots. waves 2 feet or less. 

$$

fzus63 kdtx 210704
glflh 
expires:202609211515;;805582

open lake forecast for lake huron
national weather service detroit/pontiac mi
304 am edt mon sep 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, over northern ontario
will build southeast early this week. this will lead to prolong
moderate northeast winds over the central great lakes.


lhz361-362-211515-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
304 am edt mon sep 21 2026

.today...northeast winds 15 to 20 knots decreasing to 10 to
15 knots in the afternoon. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.tonight...northeast winds 10 to 15 knots increasing to 15 to
20 knots after midnight. waves 3 to 5 feet. 
.tuesday...east winds 15 to 20 knots decreasing to 10 to 15 knots
early in the afternoon. waves 3 to 5 feet. 
.tuesday night...northeast winds 10 to 15 knots becoming east
15 to 20 knots in the late evening and overnight. waves 3 to
5 feet. 
.wednesday...east winds 15 to 20 knots decreasing to 10 to
15 knots. waves 3 to 5 feet. 
.thursday...east winds 10 to 15 knots decreasing to 5 to 10 knots
. waves 1 to 3 feet. 
.friday...light and variable winds. waves 2 feet or less. 


$$

fzus63 kdtx 210704
glflh 
expires:202609211515;;805583

open lake forecast for lake huron
national weather service detroit/pontiac mi
304 am edt mon sep 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, over northern ontario
will build southeast early this week. this will lead to prolong
moderate northeast winds over the central great lakes.


lhz363-462>464-211515-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
304 am edt mon sep 21 2026

.today...northeast winds 20 to 25 knots decreasing to 15 to
20 knots in the late morning and afternoon. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.tonight...northeast winds 15 to 20 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.tuesday...northeast winds 15 to 20 knots. gusts to 30 knots
early in the afternoon. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.tuesday night...northeast winds 15 to 20 knots. waves 4 to
6 feet. 
.wednesday...east winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming northeast 15 to
20 knots late in the afternoon becoming east 10 to 15 knots late
in the evening. waves 3 to 5 feet. waves occasionally around
8 feet. 
.thursday...east winds 10 to 15 knots becoming northeast 5 to
10 knots . waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...east winds 5 to 10 knots backing to the north . waves
2 feet or less. 


$$

fzus63 kdtx 210704
glfsc 
expires:202609211515;;805586

lake st clair forecast
national weather service detroit/pontiac mi
304 am edt mon sep 21 2026

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, over northern ontario
will build southeast early this week. this will lead to prolong
moderate northeast winds over the central great lakes.


lcz460-211515-
lake st clair-
304 am edt mon sep 21 2026

...small craft advisory in effect through wednesday evening...

.today...northeast winds 20 to 25 knots diminishing to 15 to 20
knots in the late morning and afternoon. mostly cloudy. waves 2 to 4
feet subsiding to 1 to 3 feet in the late morning and afternoon.
.tonight...northeast winds 20 to 25 knots. gusts to 30 knots by
midnight. mostly cloudy this evening becoming partly cloudy. waves 2
to 4 feet building to 3 to 5 feet in the late evening and overnight.
waves occasionally around 7 feet.
.tuesday...northeast winds 20 to 25 knots diminishing to 15 to 20
knots early in the afternoon. partly sunny. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon.
.tuesday night...northeast winds to 30 knots with gusts to 35 knot
gales. partly cloudy early in the evening becoming mostly cloudy.
waves 3 to 5 feet. waves occasionally around 7 feet.  a gale warning
may be needed.
.wednesday...northeast winds 20 to 25 knots becoming east 15 to 20
knots in the afternoon...then increasing to 20 to 25 knots in the
evening. partly cloudy. waves 2 to 4 feet.
.thursday...east winds 20 to 25 knots. mostly clear. waves 1 to 3
feet.
.friday...north winds 10 to 15 knots. mostly clear. waves 2 feet or
less.

$$