fzus61 kbuf 171402
glflo 
expires:202605172100;;712484

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sun may 17 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 29.4 inch low over the upper mississippi valley today 
will weaken to 29.7 inches as it moves northeast into the upper 
great lakes tonight while swinging an attendant warm front across 
the lake. another area of low pressure will develop over the central 
plains monday. the low will weaken from 29.4 inches to 29.6 inches 
as it tracks northeast to the upper great lakes monday night into 
tuesday morning, then to central quebec wednesday while 
strengthening to 29.4 inches. a cold front attendant to this low 
will cross the lake late tuesday night into wednesday morning. a 
large 30.4 inch high will then build across the entire great lakes 
region wednesday night through thursday.


loz063>065-172100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt sun may 17 2026

.this afternoon...west winds 10 knots or less becoming south.
patchy fog. waves 2 feet or less. 
.tonight...southeast winds 10 knots or less becoming east. a
chance of showers late. waves 1 foot or less. 
.monday...southeast winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.monday night...south winds 5 to 10 knots becoming southwest.
waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. showers likely with a chance of thunderstorms tuesday
night. waves 1 to 3 feet building to 3 to 5 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest.
showers likely with a chance of thunderstorms during the day.
waves 3 to 6 feet. 
.thursday...north winds 5 to 15 knots diminishing to less than
10 knots. waves 2 to 4 feet subsiding to 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 171402
glflo 
expires:202605172100;;712483

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sun may 17 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 29.4 inch low over the upper mississippi valley today 
will weaken to 29.7 inches as it moves northeast into the upper 
great lakes tonight while swinging an attendant warm front across 
the lake. another area of low pressure will develop over the central 
plains monday. the low will weaken from 29.4 inches to 29.6 inches 
as it tracks northeast to the upper great lakes monday night into 
tuesday morning, then to central quebec wednesday while 
strengthening to 29.4 inches. a cold front attendant to this low 
will cross the lake late tuesday night into wednesday morning. a 
large 30.4 inch high will then build across the entire great lakes 
region wednesday night through thursday.


loz062-172100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt sun may 17 2026

.this afternoon...west winds 10 knots or less becoming east.
patchy fog. waves 1 foot or less. 
.tonight...southeast winds 5 to 10 knots becoming east. a chance
of showers from late evening on. waves 1 foot or less. 
.monday...east winds 10 knots or less becoming southwest and
increasing to 15 to 20 knots in the afternoon. waves 1 to 3 feet.
.monday night...southwest winds 10 to 15 knots. a chance of
showers overnight. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 25 knots. a chance of showers
during the day, then showers with a chance of thunderstorms
tuesday night. waves 2 to 4 feet building to 3 to 6 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. showers likely during the day. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.thursday...north winds 10 knots or less becoming northeast.
waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 171308
glfle 
expires:202605172015;;710953

open lake forecast for lake erie
national weather service cleveland oh
908 am edt sun may 17 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 frontal boundary will waver to the north of lake erie today. 
the boundary will lift north as a warm front late today into 
monday. low pressure of 29.60 inches will move northeast through 
the upper great lakes on tuesday with a cold front settling south
across lake erie on wednesday morning. high pressure of 30.20 
inches will build over lake erie on thursday.


lez162>166-172015-
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-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-
908 am edt sun may 17 2026

.this afternoon...southwest winds 10 knots or less becoming
southeast. a slight chance of showers and thunderstorms.
waves 2 feet or less. 
.tonight...southeast winds 5 to 15 knots becoming south. a slight
chance of showers and thunderstorms early. waves 2 feet or less. 
.monday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. waves 1 to 3 feet. 
.monday night...southwest winds 15 to 20 knots becoming south
10 to 15 knots. a chance of showers and thunderstorms in the
evening, then a chance of showers overnight. waves 1 to 3 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest. a
chance of showers and thunderstorms during the day, then showers
with thunderstorms likely tuesday night. waves 1 to 3 feet
building to 2 to 4 feet. 
.wednesday...northwest winds 5 to 15 knots becoming northeast
15 to 20 knots. waves 1 to 3 feet. 
.thursday...northeast winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 171308
glfle 
expires:202605172015;;710954

open lake forecast for lake erie
national weather service cleveland oh
908 am edt sun may 17 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 frontal boundary will waver to the north of lake erie today. 
the boundary will lift north as a warm front late today into 
monday. low pressure of 29.60 inches will move northeast through 
the upper great lakes on tuesday with a cold front settling south
across lake erie on wednesday morning. high pressure of 30.20 
inches will build over lake erie on thursday.


lez061-167>169-172015-
ripley to buffalo ny extending from 5nm 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-
908 am edt sun may 17 2026

.this afternoon...southwest winds 10 knots or less becoming south.
a slight chance of showers and thunderstorms late. waves 2 feet
or less. 
.tonight...southeast winds 5 to 10 knots becoming south. waves
2 feet or less. 
.monday...south winds 10 to 15 knots becoming southwest. waves
2 feet or less. 
.monday night...southwest winds 10 to 15 knots. a chance of
showers overnight. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers during the day, then showers with
thunderstorms likely tuesday night. waves 1 to 3 feet building to
2 to 4 feet. 
.wednesday...west winds 5 to 15 knots becoming north. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.thursday...northeast winds 5 to 15 knots becoming east. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 171342
glfsc 
expires:202605172145;;711945

lake st clair forecast
national weather service detroit/pontiac mi
942 am edt sun may 17 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 cold front stalls over southern lake huron this
morning. isolated strong to severe thunderstorms are possible
near the frontal zones this afternoon and may linger through late
tonight. the front lifts north as a warm front overnight,
resulting in a period of breezy southerly flow and thunderstorm
chances through the first half of the work week.


lcz460-172145-
lake st clair-
942 am edt sun may 17 2026

.rest of today...light and variable winds becoming southeast 5 to 10
knots in the afternoon. partly sunny. waves 2 feet or less.
.tonight...south winds 10 to 15 knots. partly cloudy. waves 2 feet
or less.
.monday...south winds 10 to 15 knots increasing to 20 to 25 knots.
mostly sunny. waves 1 to 3 feet building to 2 to 4 feet early in the
afternoon.
.monday night...southwest winds 15 to 20 knots diminishing to 10 to
15 knots after midnight. partly cloudy. a chance of light showers in
the late evening and overnight. 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 20 to 25
knots with gusts to 30 knots in the afternoon and evening. partly
sunny in the morning...then light showers and a chance of
thunderstorms in the afternoon and evening. waves 1 to 3 feet
building to 2 to 4 feet in the afternoon and evening. a small craft
advisory may be needed.
.wednesday...northeast winds 15 to 20 knots. partly cloudy. light
showers. waves 1 to 3 feet.
.thursday...northeast winds 10 to 15 knots. mostly clear. waves 2
feet or less.

$$

fzus63 kdtx 171340
glflh 
expires:202605172145;;711927

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 am edt sun may 17 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 cold front stalls over southern lake huron this
morning. isolated strong to severe thunderstorms are possible
near the frontal zones this afternoon and may linger through late
tonight. the front lifts north as a warm front overnight,
resulting in a period of breezy southerly flow and thunderstorm
chances through the first half of the work week.


lhz362-363-172145-
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-
940 am edt sun may 17 2026

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


$$

fzus63 kdtx 171340
glflh 
expires:202605172145;;711928

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 am edt sun may 17 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 cold front stalls over southern lake huron this
morning. isolated strong to severe thunderstorms are possible
near the frontal zones this afternoon and may linger through late
tonight. the front lifts north as a warm front overnight,
resulting in a period of breezy southerly flow and thunderstorm
chances through the first half of the work week.


lhz462>464-172145-
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-
940 am edt sun may 17 2026

.rest of today...north winds 5 to 10 knots. waves 2 feet or less.
.tonight...north winds 5 to 10 knots becoming southeast 10 to
15 knots after midnight. a chance of showers in the evening.
waves 1 to 3 feet building to 2 to 4 feet early in the morning. 
.monday...south winds 15 to 20 knots. a chance of showers in the
afternoon. waves 3 to 5 feet. 
.monday night...south winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. showers and a chance
of thunderstorms in the evening...then showers likely and a
chance of thunderstorms after midnight. waves 3 to 5 feet. 
.tuesday...south winds 15 to 20 knots becoming west 10 to
15 knots late in the evening. a chance of showers in the
morning...then showers and a chance of thunderstorms late in the
morning. a chance of showers late in the evening. waves 4 to
6 feet. waves occasionally around 8 feet. 
.wednesday...north winds 10 to 15 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.thursday...north winds 10 to 15 knots decreasing to 5 to
10 knots. waves 3 to 5 feet subsiding to 1 to 3 feet by midnight.


$$

fzus63 kdtx 171340
glflh 
expires:202605172145;;711926

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 am edt sun may 17 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 cold front stalls over southern lake huron this
morning. isolated strong to severe thunderstorms are possible
near the frontal zones this afternoon and may linger through late
tonight. the front lifts north as a warm front overnight,
resulting in a period of breezy southerly flow and thunderstorm
chances through the first half of the work week.


lhz361-172145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
940 am edt sun may 17 2026

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


$$