fzus61 kbuf 122009
glflo 
expires:202604130300;;261053

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt sun apr 12 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 30.5 inch area of high pressure will slide off the 
east coast tonight. a 29.3 inch low over the upper midwest this 
evening, will move quickly northeastward to near james bay tonight. 
this low will strengthen to 29.2 inches while continuing to trek 
northeast into northern quebec monday, with a trailing cold front 
stalling near the lake monday through tuesday. a 29.5 inch surface 
low advancing through the upper great lakes wednesday will lift this 
frontal boundary northward into canada. this 29.5 inch low will 
continue northeast into southern quebec on thursday while dragging 
an attendant cold front across the lake. a 30.2 inch high will then 
build over the lower great lakes on friday.


loz062-130300-
lake ontario open waters from the niagara river to hamlin beach-
409 pm edt sun apr 12 2026

.tonight...east winds 10 to 15 knots becoming southwest and
increasing to 15 to 25 knots. a chance of showers early. a chance
of showers late. waves 1 to 3 feet building to 3 to 5 feet. 
.monday...southwest winds 15 to 25 knots. showers likely in the
morning. waves 3 to 6 feet. 
.monday night...southwest winds 15 to 20 knots becoming southeast
5 to 15 knots. showers likely overnight. waves 3 to 5 feet
subsiding to 1 to 2 feet. 
.tuesday...southeast winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. showers likely in the morning, then
showers likely with a chance of thunderstorms in the afternoon.
waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. a chance of showers and thunderstorms in the
evening, then showers likely with a chance of thunderstorms
overnight. waves 2 to 4 feet. 
.wednesday...southwest winds 10 to 15 knots becoming south.
showers likely. waves 1 to 3 feet. 
.thursday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. showers likely. waves 2 to 4 feet. 
.friday...west winds 5 to 15 knots becoming south. waves 1 to
3 feet subsiding to 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 122009
glflo 
expires:202604130300;;261054

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt sun apr 12 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 30.5 inch area of high pressure will slide off the 
east coast tonight. a 29.3 inch low over the upper midwest this 
evening, will move quickly northeastward to near james bay tonight. 
this low will strengthen to 29.2 inches while continuing to trek 
northeast into northern quebec monday, with a trailing cold front 
stalling near the lake monday through tuesday. a 29.5 inch surface 
low advancing through the upper great lakes wednesday will lift this 
frontal boundary northward into canada. this 29.5 inch low will 
continue northeast into southern quebec on thursday while dragging 
an attendant cold front across the lake. a 30.2 inch high will then 
build over the lower great lakes on friday.


loz063>065-130300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
409 pm edt sun apr 12 2026

.tonight...southeast winds 15 to 25 knots becoming south. showers
likely early, then a chance of showers late this evening. waves
1 to 3 feet building to 4 to 7 feet. waves occasionally around
9 feet. 
.monday...southwest winds 15 to 25 knots. showers in the morning,
then a chance of showers early in the afternoon. waves 3 to
6 feet. 
.monday night...southwest winds 15 to 20 knots becoming south and
diminishing to less than 10 knots overnight. a chance of showers.
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...southeast winds 5 to 15 knots becoming southwest 15 to
20 knots. showers likely in the morning, then showers with a
chance of thunderstorms in the afternoon. waves 1 to 3 feet. 
.tuesday night...southwest winds 10 to 15 knots. showers with a
chance of thunderstorms. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.wednesday...southwest winds 5 to 15 knots becoming south.
showers likely. waves 1 to 3 feet. 
.thursday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. showers likely. waves 1 to 3 feet. 
.friday...west winds 15 to 20 knots becoming south 5 to 15 knots.
waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 122000
glfle 
expires:202604130215;;260239

open lake forecast for lake erie
national weather service cleveland oh
400 pm edt sun apr 12 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...
low pressure of 29.40 inches will track across the upper great 
lakes towards hudson bay tonight, leaving a stalled frontal 
boundary across the central great lakes. several waves of low 
pressure will track along this boundary through mid-week including
low pressure of 29.50 inches on thursday. a ridge averaging 30.00
inches will be over the lake on friday. 


lez162>165-130215-
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-
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-
400 pm edt sun apr 12 2026

.tonight...southwest winds 15 to 25 knots. a chance of showers 
after midnight. showers likely late. waves 1 to 3 feet building to
3 to 5 feet. 
.monday...southwest winds 15 to 25 knots diminishing to 10 to 15 
knots. a chance of showers early, then a slight chance of showers 
late in the morning. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.monday night...southwest winds 10 to 15 knots. a chance of
showers in the evening, then a chance of showers and
thunderstorms overnight. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 20 knots. a chance of showers
and thunderstorms. waves 1 to 3 feet building to 2 to 4 feet,
then subsiding to 1 to 3 feet. 
.tuesday night...southwest winds 10 to 15 knots. showers likely
with a chance of thunderstorms. waves 1 to 3 feet. 
.wednesday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. a chance of showers during the day, then showers likely
wednesday night. waves 1 to 2 feet building to 2 to 4 feet. 
.thursday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.friday...west winds 5 to 15 knots becoming south 15 to 20 knots.
a chance of showers friday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 122000
glfle 
expires:202604130215;;260240

open lake forecast for lake erie
national weather service cleveland oh
400 pm edt sun apr 12 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...
low pressure of 29.40 inches will track across the upper great 
lakes towards hudson bay tonight, leaving a stalled frontal 
boundary across the central great lakes. several waves of low 
pressure will track along this boundary through mid-week including
low pressure of 29.50 inches on thursday. a ridge averaging 30.00
inches will be over the lake on friday. 


lez061-166>169-130215-
ripley to buffalo ny extending from 5nm 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-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
400 pm edt sun apr 12 2026

.tonight...south winds 10 to 15 knots becoming southwest 15 to
25 knots. a slight chance of showers after midnight. a chance of 
showers late. waves 2 to 4 feet building to 3 to 5 feet. 
.monday...southwest winds 15 to 25 knots. a chance of showers in
the morning, then a slight chance of showers in the afternoon.
waves 3 to 6 feet. 
.monday night...southwest winds 10 to 15 knots becoming south. a
chance of showers in the evening, then a chance of showers and
thunderstorms overnight. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest. a
chance of showers and thunderstorms. waves 2 to 4 feet. 
.tuesday night...southwest winds 10 to 15 knots. showers likely
with a chance of thunderstorms. waves 1 to 3 feet. 
.wednesday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. showers likely with a chance of thunderstorms during
the day, then showers likely wednesday night. waves 1 to 3 feet
building to 2 to 4 feet. 
.thursday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.friday...west winds 10 knots or less becoming south and
increasing to 15 to 20 knots. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 121957
glflh 
expires:202604130400;;260054

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 pm edt sun apr 12 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...a warm front lifts across the region today, then
stalls across the northern great lakes through much of the week.
multiple passing disturbances bring rounds of showers,
thunderstorms, and gusty winds through friday.


lhz361-362-130400-
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-
357 pm edt sun apr 12 2026

.tonight...southeast winds 15 to 20 knots becoming south 20 to
25 knots with gusts to around 30 knots in the late evening and
overnight. showers and a chance of thunderstorms in the evening...
then a chance of showers after midnight. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.monday...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the afternoon. a chance of showers in the morning.
waves 5 to 7 feet subsiding to 3 to 5 feet late in the afternoon.
waves occasionally around 10 feet. 
.monday night...north winds 5 to 10 knots becoming east 10 to
15 knots after midnight. a chance of thunderstorms after
midnight. waves 2 to 4 feet subsiding to 1 to 3 feet in the late
evening and overnight. 
.tuesday...east winds 15 to 20 knots decreasing to 10 to 15 knots
in the late morning and early afternoon...then backing to the
east 10 to 15 knots early in the afternoon. a chance of showers.
waves 3 to 5 feet. 
.tuesday night...north winds 5 to 10 knots. a chance of showers.
waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening
and overnight. 
.wednesday...north winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then becoming east 10 to 15 knots
late in the evening. a chance of showers. showers likely late in
the evening. waves 1 to 3 feet building to 3 to 5 feet late in
the evening. 
.thursday...east winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then veering
to the southwest . showers likely early in the morning...then a
chance of showers until early evening. waves 3 to 5 feet. 
.friday...northwest winds 10 to 15 knots veering to the east
early in the evening...then becoming southeast 15 to 20 knots by
midnight. a chance of showers by midnight. waves 2 to 4 feet
building to 5 to 7 feet. waves occasionally around 10 feet. 


$$

fzus63 kdtx 121957
glflh 
expires:202604130400;;260055

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 pm edt sun apr 12 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...a warm front lifts across the region today, then
stalls across the northern great lakes through much of the week.
multiple passing disturbances bring rounds of showers,
thunderstorms, and gusty winds through friday.


lhz363-462>464-130400-
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-
357 pm edt sun apr 12 2026

.tonight...southeast winds 15 to 20 knots becoming south 20 to
25 knots with gusts to around 30 knots in the late evening and
overnight. a chance of showers in the evening...then showers
after midnight. waves 6 to 9 feet. waves occasionally around
12 feet. 
.monday...southwest winds 15 to 20 knots becoming west 10 to
15 knots late in the afternoon. a chance of showers in the
morning. waves 5 to 7 feet subsiding to 3 to 5 feet late in the
afternoon. waves occasionally around 10 feet. 
.monday night...north winds 5 to 10 knots veering to the east by
midnight...then increasing to 10 to 15 knots after midnight. a
chance of showers in the evening...then showers and a chance of
thunderstorms after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots early in the afternoon. a chance of showers and
thunderstorms in the morning...then a chance of showers in the
afternoon. waves 3 to 5 feet. 
.tuesday night...southwest winds 10 to 15 knots becoming
southeast 5 to 10 knots in the late evening and overnight. a
chance of showers and thunderstorms in the evening...then showers
likely after midnight. waves 2 to 4 feet subsiding to 1 to 3 feet
in the late evening and overnight. 
.wednesday...southwest winds 10 to 15 knots backing to the east
late in the evening. a chance of showers. showers likely late in
the afternoon. waves 1 to 3 feet building to 2 to 4 feet late in
the evening. 
.thursday...southeast winds 15 to 20 knots becoming southwest
10 to 15 knots. showers likely early in the morning...then a
chance of showers until early evening. waves 3 to 5 feet
subsiding to 2 to 4 feet by midnight. 
.friday...west winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then backing to the
southeast early in the evening becoming south 15 to 20 knots by
midnight. a chance of. waves 2 to 4 feet building to 4 to 6 feet
by midnight. waves occasionally around 8 feet. 


$$

fzus63 kdtx 121957
glfsc 
expires:202604130400;;260103

lake st clair forecast
national weather service detroit/pontiac mi
357 pm edt sun apr 12 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...a warm front lifts across the region today, then
stalls across the northern great lakes through much of the week.
multiple passing disturbances bring rounds of showers,
thunderstorms, and gusty winds through friday.


lcz460-130400-
lake st clair-
357 pm edt sun apr 12 2026

...small craft advisory in effect from 10 pm edt this evening
through monday morning...

.tonight...southwest winds 15 to 20 knots with gusts to 25 knots.
mostly cloudy. a chance of light showers after midnight. rain 
showers likely early in the morning. waves 1 to 3 feet.
.monday...southwest winds 15 to 20 knots becoming west 10 to 15
knots late in the afternoon. partly sunny. a chance of light showers
early in the morning. waves 1 to 3 feet.
.monday night...southwest winds 10 to 15 knots. partly cloudy ...
then mostly cloudy with light showers likely and a chance of
thunderstorms after midnight. waves 1 to 3 feet.
.tuesday...southwest winds 10 to 15 knots increasing to 15 to 20
knots in the late morning and afternoon. mostly cloudy. a chance of
thunderstorms early in the morning. a chance of light showers until
late afternoon...then light showers likely and a chance of
thunderstorms early in the afternoon. waves 1 to 3 feet.
.tuesday night...southwest winds 10 to 15 knots. showers and a
chance of thunderstorms ...then light showers after midnight. waves
2 feet or less.
.wednesday...southwest winds 10 to 15 knots. light showers likely in
the morning. light showers in the afternoon and evening. a chance of
thunderstorms in the evening. waves 2 feet or less.
.thursday...southwest winds 15 to 20 knots. mostly cloudy. light
showers and a chance of thunderstorms. waves 1 to 3 feet.
.friday...south winds 10 to 15 knots. partly cloudy. waves 2 feet or
less.

$$