fzus61 kbuf 270802
glflo 
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open lake forecast for lake ontario
national weather service buffalo ny
402 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 build across the lower great lakes 
through monday. a 29.4 inch low over the great plains monday night 
will advance northeast into the upper great lakes later monday night 
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>065-271500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt mon apr 27 2026

.today...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 kbuf 270802
glflo 
expires:202604271500;;599809

open lake forecast for lake ontario
national weather service buffalo ny
402 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 build across the lower great lakes 
through monday. a 29.4 inch low over the great plains monday night 
will advance northeast into the upper great lakes later monday night 
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.


loz062-271500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt mon apr 27 2026

.today...east winds 10 knots or less increasing to 10 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 15 to 20 knots becoming south.
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 kcle 270742
glfle 
expires:202604271415;;599300

open lake forecast for lake erie
national weather service cleveland oh
342 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.



lez061-168-169-271415-
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-
342 am edt mon apr 27 2026

.today...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 after midnight.
a chance of showers 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. a chance of showers. 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 270742
glfle 
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open lake forecast for lake erie
national weather service cleveland oh
342 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>164-271415-
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-
342 am edt mon apr 27 2026

.today...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 early, then a chance of showers and
thunderstorms late in the evening. showers with a 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 270742
glfle 
expires:202604271415;;599299

open lake forecast for lake erie
national weather service cleveland oh
342 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>167-271415-
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-
342 am edt mon apr 27 2026

.today...southeast winds 5 to 15 knots becoming east. 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 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. 


$$

fzus63 kdtx 271344
glflh 
expires:202604272145;;612711

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 270733
glflh 
expires:202604271545;;598898

open lake forecast for lake huron
national weather service detroit/pontiac mi
333 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...broad high pressure, 30.20 inches, holds over the
great lakes through early monday. the next low, 29.30 inches,
lifts into the northern great lakes late monday-tuesday bringing
stronger southerly winds and the next chance for thunderstorms.


lhz362-363-271545-
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-
333 am edt mon apr 27 2026

.today...southeast winds 10 to 15 knots increasing to 15 to
20 knots in the afternoon. waves 1 to 3 feet building to 3 to
5 feet in the afternoon. 
.tonight...southeast winds 15 to 20 knots increasing to 30 knots
with gusts to 35 knot gales. showers likely after midnight. waves
5 to 7 feet building to 8 to 12 feet after midnight. waves
occasionally around 15 feet. 
.tuesday...south winds 20 to 25 knots with gusts to 35 knot gales
decreasing to 15 to 20 knots with gusts to around 30 knots in the
late morning and afternoon. showers likely 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. 


$$

fzus63 kdtx 270733
glflh 
expires:202604271545;;598897

open lake forecast for lake huron
national weather service detroit/pontiac mi
333 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...broad high pressure, 30.20 inches, holds over the
great lakes through early monday. the next low, 29.30 inches,
lifts into the northern great lakes late monday-tuesday bringing
stronger southerly winds and the next chance for thunderstorms.


lhz361-271545-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
333 am edt mon apr 27 2026

.today...east winds 10 to 15 knots increasing to 20 to 25 knots
with gusts to around 30 knots. waves 1 to 3 feet building to 5 to
7 feet. waves occasionally around 10 feet. 
.tonight...southeast winds 20 to 25 knots with gusts to 35 knot
gales. a chance of showers in the evening...then showers and a
chance of thunderstorms after midnight. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.tuesday...south winds 15 to 20 knots with gusts to around
30 knots veering to the west early in the afternoon. a chance of
showers in the morning. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.tuesday night...west winds 15 to 20 knots decreasing to 5 to
10 knots. waves 4 to 6 feet subsiding to 2 to 4 feet after
midnight. waves occasionally around 8 feet. 
.wednesday...northwest winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. waves 1 to 3 feet building to
2 to 4 feet late in the afternoon. 
.thursday...northwest winds 10 to 15 knots increasing to 15 to
20 knots by midnight. 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 . 
.friday...north winds 10 to 15 knots becoming northwest 15 to
20 knots . waves 2 to 4 feet subsiding to 1 to 3 feet in the late
morning and early afternoon...then building to 3 to 5 feet . 


$$

fzus63 kdtx 270733
glfsc 
expires:202604271545;;598901

lake st clair forecast
national weather service detroit/pontiac mi
333 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...broad high pressure, 30.20 inches, holds over the
great lakes through early monday. the next low, 29.30 inches,
lifts into the northern great lakes late monday-tuesday bringing
stronger southerly winds and the next chance for thunderstorms.


lcz460-271545-
lake st clair-
333 am edt mon apr 27 2026

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

.today...southeast winds 10 to 15 knots increasing to 15 to 20 knots
in the afternoon. partly sunny. waves 2 feet or less.
.tonight...southeast winds 15 to 20 knots becoming south 20 to 25
knots with gusts to 30 knots after midnight. 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.

$$