fzus61 kbuf 271402
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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt mon apr 27 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 30.3 inch high will weaken across the lower great 
lakes region today. a 29.4 inch low over the great plains tonight 
will advance northeast into the upper great lakes later tonight into 
tuesday morning, while pushing a warm front across the lake. the low 
will head northeast to james bay tuesday night sending a cold front 
across the lake. an inverted trough averaging 29.7 inch inverted 
trough is expected across the lower great lakes wednesday through 
wednesday night. the trough/low will track to the coast of new 
england through friday while also deepening to 29.5 inches.


loz062-272100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt mon apr 27 2026

.this afternoon...east winds 5 to 15 knots. waves 1 to 3 feet. 
.tonight...east winds 15 to 20 knots becoming southeast 10 to
15 knots. waves 2 to 4 feet. 
.tuesday...southeast winds 10 to 15 knots becoming south 15 to
20 knots. showers. waves 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming
northwest and diminishing to less than 10 knots overnight. a
chance of showers in the evening. waves 1 to 3 feet. 
.wednesday...north winds 5 to 15 knots becoming northwest 15 to
20 knots. showers. waves 1 foot or less building to 2 to 4 feet. 
.thursday...northwest winds 15 to 20 knots. a chance of rain
showers during the day. waves 2 to 4 feet building to 3 to
5 feet. 
.friday...northwest winds 15 to 20 knots. waves 3 to 6 feet. 

$$

fzus61 kbuf 271402
glflo 
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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt mon apr 27 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 30.3 inch high will weaken across the lower great 
lakes region today. a 29.4 inch low over the great plains tonight 
will advance northeast into the upper great lakes later tonight into 
tuesday morning, while pushing a warm front across the lake. the low 
will head northeast to james bay tuesday night sending a cold front 
across the lake. an inverted trough averaging 29.7 inch inverted 
trough is expected across the lower great lakes wednesday through 
wednesday night. the trough/low will track to the coast of new 
england through friday while also deepening to 29.5 inches.


loz063>065-272100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt mon apr 27 2026

.this afternoon...southeast winds 10 knots or less becoming
northeast. waves 1 foot or less. 
.tonight...east winds 10 to 15 knots becoming southeast 15 to
20 knots. waves 1 to 3 feet. 
.tuesday...southeast winds 15 to 20 knots becoming south.
showers. waves 2 to 4 feet building to 3 to 5 feet. 
.tuesday night...south winds 15 to 20 knots becoming west 10 to
15 knots. showers likely in the evening, then a chance of showers
overnight. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots increasing to 15 to
20 knots. showers. waves 2 feet or less building to 2 to 4 feet. 
.thursday...northwest winds 15 to 25 knots. rain showers likely
during the day, then a chance of rain showers thursday night.
waves 3 to 5 feet building to 4 to 7 feet. waves occasionally
around 9 feet. 
.friday...northwest winds to 30 knots diminishing to 15 to
25 knots. a chance of rain showers. waves 6 to 9 feet subsiding
to 4 to 7 feet. waves occasionally around 11 feet. 

$$

fzus61 kcle 271432
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open lake forecast for lake erie
national weather service cleveland oh
1032 am edt mon apr 27 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...
a ridge averaging 30.10 inches departs tonight ahead of an
advancing cold front that will track west to east across lake erie
beginning early tuesday. a secondary trough averaging 29.70 inches
moves in from the southwest wednesday. high pressure 30.00 inches
builds in late thursday.


lez061-168-169-272015-
ripley to buffalo ny extending from 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-
1032 am edt mon apr 27 2026

.this afternoon...east winds 5 to 15 knots. waves 1 foot or less. 
.tonight...east winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. a chance of showers with a slight
chance of thunderstorms after midnight. showers likely with a
slight chance of thunderstorms late. waves 1 to 3 feet building
to 4 to 7 feet. waves occasionally around 9 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest and
diminishing to 10 to 15 knots. showers likely in the morning,
then a chance of showers in the afternoon. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.tuesday night...southwest winds 5 to 15 knots becoming north
less than 10 knots. waves 1 to 3 feet. 
.wednesday...northeast winds 5 to 15 knots becoming northwest.
showers during the day, then a chance of showers wednesday night.
waves 1 to 3 feet. 
.thursday...northwest winds 10 to 15 knots. waves 1 to 3 feet. 
.friday...northwest winds 10 to 15 knots. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 271432
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open lake forecast for lake erie
national weather service cleveland oh
1032 am edt mon apr 27 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...
a ridge averaging 30.10 inches departs tonight ahead of an
advancing cold front that will track west to east across lake erie
beginning early tuesday. a secondary trough averaging 29.70 inches
moves in from the southwest wednesday. high pressure 30.00 inches
builds in late thursday.


lez162>164-272015-
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-
1032 am edt mon apr 27 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 271432
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open lake forecast for lake erie
national weather service cleveland oh
1032 am edt mon apr 27 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...
a ridge averaging 30.10 inches departs tonight ahead of an
advancing cold front that will track west to east across lake erie
beginning early tuesday. a secondary trough averaging 29.70 inches
moves in from the southwest wednesday. high pressure 30.00 inches
builds in late thursday.


lez165>167-272015-
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-
1032 am edt mon apr 27 2026

.this afternoon...east winds 10 to 15 knots. waves 1 to 2 feet. 
.tonight...southeast winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. showers likely with a slight chance
of thunderstorms after midnight. waves 1 to 3 feet building to
4 to 7 feet. waves occasionally around 9 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest and
diminishing to 10 to 15 knots. a chance of showers. waves 3 to
6 feet subsiding to 2 to 4 feet. 
.tuesday night...west winds 5 to 15 knots becoming north. waves
1 to 3 feet. 
.wednesday...northeast winds 5 to 15 knots becoming northwest.
showers during the day. waves 1 to 3 feet. 
.thursday...northwest winds 10 to 15 knots becoming north. waves
1 to 3 feet. 
.friday...north winds 10 to 15 knots. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 271346
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lake st clair forecast
national weather service detroit/pontiac mi
946 am edt mon apr 27 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...the next low, 29.30 inches, will track through lake
superior tonight. brief southerly gales over the north half of
lake huron expected, along with showers and embedded
thunderstorms as the cold front passes through tuesday morning.


lcz460-272200-
lake st clair-
946 am edt mon apr 27 2026

...small craft advisory in effect from 8 pm edt this evening
through tuesday afternoon...

.rest of today...southeast winds 10 to 15 knots increasing to 15 to
20 knots in the afternoon. partly sunny. waves 1 to 3 feet.
.tonight...southeast winds 15 to 20 knots becoming south 20 to 25
knots with gusts to 30 knots. a chance of light showers late in 
the evening. light showers and a chance of thunderstorms after 
midnight. waves 1 to 3 feet building to 2 to 4 feet after 
midnight.
.tuesday...south winds 20 to 25 knots with gusts to 30 knots
becoming southwest 15 to 20 knots in the late morning and early
afternoon...then becoming west 10 to 15 knots early in the
afternoon. partly sunny. a chance of light showers until late
afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet in the late
morning and afternoon.
.tuesday night...west winds 10 to 15 knots becoming north 5 to 10
knots in the late evening and overnight. partly cloudy becoming
mostly cloudy. waves 2 feet or less.
.wednesday...north winds 10 to 15 knots increasing to 15 to 20 knots
in the evening. mostly cloudy with a chance of light showers...then
partly cloudy in the evening. waves 2 feet or less.
.thursday...north winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.friday...north winds 10 to 15 knots. partly cloudy. waves 2 feet or
less.

$$

fzus63 kdtx 271344
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open lake forecast for lake huron
national weather service detroit/pontiac mi
944 am edt mon apr 27 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...the next low, 29.30 inches, will track through lake
superior tonight. brief southerly gales over the north half of
lake huron expected, along with showers and embedded
thunderstorms as the cold front passes through tuesday morning.


lhz361>363-272145-
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-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
944 am edt mon apr 27 2026

.rest of today...east winds 10 to 15 knots becoming southeast
15 to 20 knots in the afternoon. waves 4 to 6 feet building to
6 to 9 feet late in the afternoon. waves occasionally around
12 feet. 
.tonight...southeast winds 15 to 20 knots increasing to 30 knots.
brief gusts to 35 knot gales. a chance of showers in the 
evening...then showers after midnight. waves 8 to 12 feet building
to 10 to 14 feet early in the morning. waves occasionally around 
18 feet. 
.tuesday...southeast winds 20 to 25 knots with brief gusts to 35 
knot gales becoming south 15 to 20 knots in the late morning and 
afternoon. a chance of showers in the morning. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.tuesday night...west winds 10 to 15 knots becoming northwest
5 to 10 knots in the late evening and overnight. waves 3 to
5 feet. 
.wednesday...northwest winds 5 to 10 knots becoming north 10 to
15 knots late in the morning...then backing to the northwest late
in the afternoon increasing to 15 to 20 knots late in the
evening. waves 1 to 3 feet building to 3 to 5 feet late in the
afternoon. 
.thursday...northwest winds 10 to 15 knots increasing to 15 to
20 knots by midnight. waves 3 to 5 feet. 
.friday...northwest winds 10 to 15 knots increasing to 15 to
20 knots . waves 3 to 5 feet building to 5 to 7 feet . waves
occasionally around 10 feet. 


$$

fzus63 kdtx 271344
glflh 
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open lake forecast for lake huron
national weather service detroit/pontiac mi
944 am edt mon apr 27 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...the next low, 29.30 inches, will track through lake
superior tonight. brief southerly gales over the north half of
lake huron expected, along with showers and embedded
thunderstorms as the cold front passes through tuesday morning.


lhz462>464-272145-
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-
944 am edt mon apr 27 2026

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


$$