fzus61 kbuf 042002
glflo 
expires:202605050300;;015752

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt mon may 4 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 29.1 inch low over hudson bay tonight through tuesday 
will weaken to 29.3 inches as it moves to northern quebec through 
wednesday. its trailing wavy cold front will slowly cross the lake 
late tuesday, then will drift across new england wednesday and out 
to sea thursday. a 30.1 inch high over the tennessee and ohio 
valleys thursday night will slide to the mid-atlantic coastline 
friday.


loz062-050300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt mon may 4 2026

.tonight...southwest winds 15 to 20 knots. a chance of showers
late this evening. waves 2 to 4 feet building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of showers through early afternoon, then
showers likely late. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday night...southwest winds 5 to 10 knots becoming east.
rain likely in the evening, then rain overnight. waves 2 feet or
less. 
.wednesday...northeast winds 5 to 10 knots becoming west. rain in
the morning, then showers likely in the afternoon. waves 1 foot
or less. 
.wednesday night...west winds 5 to 10 knots. waves 1 foot or
less. 
.thursday...west winds 5 to 10 knots. waves 1 foot or less. 
.friday...west winds 5 to 10 knots becoming southwest. waves 1 to
2 feet. 
.saturday...southwest winds 5 to 10 knots becoming west. a chance
of showers. waves 1 to 2 feet. 

$$

fzus61 kbuf 042002
glflo 
expires:202605050300;;015753

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt mon may 4 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 29.1 inch low over hudson bay tonight through tuesday 
will weaken to 29.3 inches as it moves to northern quebec through 
wednesday. its trailing wavy cold front will slowly cross the lake 
late tuesday, then will drift across new england wednesday and out 
to sea thursday. a 30.1 inch high over the tennessee and ohio 
valleys thursday night will slide to the mid-atlantic coastline 
friday.


loz063>065-050300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt mon may 4 2026

.tonight...south winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers after midnight. waves 1 to 3 feet
building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of showers early, then showers likely late in
the morning. showers likely with a chance of thunderstorms in the
afternoon. waves 2 to 4 feet. 
.tuesday night...west winds 5 to 15 knots becoming south less
than 10 knots. rain with a chance of thunderstorms in the
evening, then rain overnight. waves 1 to 3 feet subsiding to
1 foot or less. 
.wednesday...north winds 5 to 10 knots becoming northwest. rain
in the morning, then showers in the afternoon. waves 1 foot or
less. 
.wednesday night...west winds 5 to 10 knots. a chance of showers.
waves 2 feet or less. 
.thursday...west winds 5 to 15 knots. waves 1 to 2 feet. 
.friday...west winds 5 to 15 knots becoming southwest. waves 1 to
3 feet. 
.saturday...southwest winds 5 to 15 knots. a chance of showers.
waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 041942
glfle 
expires:202605050215;;015202

open lake forecast for lake erie
national weather service cleveland oh
342 pm edt mon may 4 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 cold front will move east across lake erie during the day
tuesday before exiting to the east tuesday evening. high pressure
30.10 inches will slowly build east over the region wednesday and
thursday with low pressure 29.90 inches moving east across the 
great lakes friday and saturday.


lez162>166-050215-
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-
342 pm edt mon may 4 2026

.tonight...southwest winds 15 to 20 knots. a chance of showers
and thunderstorms early, then showers likely with a chance of
thunderstorms. a chance of showers with a slight chance of
thunderstorms late. waves 2 to 4 feet building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northwest 5 to
15 knots. a chance of showers in the morning, then showers with a
chance of thunderstorms in the afternoon. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.tuesday night...northeast winds 5 to 10 knots becoming north.
showers. waves 2 feet or less. 
.wednesday...northeast winds 5 to 10 knots becoming north.
showers in the morning, then a chance of showers in the
afternoon. waves 2 feet or less. 
.wednesday night...west winds 5 to 10 knots becoming northwest.
waves 1 foot or less. 
.thursday...northwest winds 5 to 15 knots becoming west. waves
2 feet or less. 
.friday...southwest winds 10 to 15 knots. a chance of showers.
waves 1 to 2 feet. 
.saturday...west winds 10 to 15 knots becoming southwest. a
chance of showers during the day. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 041942
glfle 
expires:202605050215;;015203

open lake forecast for lake erie
national weather service cleveland oh
342 pm edt mon may 4 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 cold front will move east across lake erie during the day
tuesday before exiting to the east tuesday evening. high pressure
30.10 inches will slowly build east over the region wednesday and
thursday with low pressure 29.90 inches moving east across the 
great lakes friday and saturday.


lez061-167>169-050215-
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-
342 pm edt mon may 4 2026

.tonight...southwest winds 15 to 20 knots. a chance of showers
and thunderstorms early, then showers likely with a chance of
thunderstorms late this evening. a chance of showers with a
slight chance of thunderstorms after midnight. waves 2 to 4 feet
building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northwest 5 to
15 knots. a chance of showers in the morning, then showers likely
with a slight chance of thunderstorms early in the afternoon.
showers with a chance of thunderstorms late. waves 3 to 5 feet
subsiding to 2 to 3 feet. 
.tuesday night...northwest winds 5 to 10 knots becoming
northeast. showers with a chance of thunderstorms in the evening,
then showers overnight. waves 1 to 3 feet. 
.wednesday...northeast winds 5 to 10 knots becoming north.
showers in the morning, then a chance of showers in the
afternoon. waves 2 feet or less. 
.wednesday night...northwest winds 5 to 10 knots. waves 1 foot or
less. 
.thursday...northwest winds 5 to 15 knots becoming west. waves
2 feet or less. 
.friday...west winds 5 to 15 knots becoming southwest. a chance
of showers. waves 1 to 2 feet. 
.saturday...southwest winds 5 to 15 knots becoming west. a chance
of showers during the day. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 041941
glfsc 
expires:202605050345;;015184

lake st clair forecast
national weather service detroit/pontiac mi
341 pm edt mon may 4 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...southwest winds continue through this evening. a cold
front moves through tonight into tomorrow morning which veers
wind direction from southwest to north. behind the front, winds
across the region will be lighter and variable in direction.
another low pressure system organizes well south of the area
tuesday into wednesday, favoring the gradual development of
northeast winds. as this low moves over the northeast mid to late
week, northeast winds will back from the northeast to northerly,
and eventually take on a more westerly component by thursday.


lcz460-050345-
lake st clair-
341 pm edt mon may 4 2026

.tonight...southwest winds 15 to 20 knots. gusts to 30 knots early
in the evening. partly cloudy becoming mostly cloudy. light showers
likely late in the evening. a chance of light showers after
midnight. waves 1 to 3 feet.
.tuesday...west winds 10 to 15 knots becoming northwest 5 to 10
knots in the late morning and afternoon. cloudy. a chance of light
showers in the morning...then light showers likely in the afternoon.
waves 2 feet or less.
.tuesday night...west winds 5 to 10 knots veering to the north after
midnight. cloudy. light showers likely ...then a chance of light
showers after midnight. waves 2 feet or less.
.wednesday...north winds 5 to 10 knots. mostly cloudy. a chance of
light showers early in the morning. waves 2 feet or less.
.wednesday night...northeast winds 5 to 10 knots backing to the west
by midnight...then veering to the northwest after midnight. mostly
cloudy becoming partly cloudy. waves 2 feet or less.
.thursday...northwest winds 5 to 10 knots. partly cloudy. waves 2
feet or less.
.friday...southwest winds 10 to 15 knots. partly cloudy. a chance of
showers. waves 2 feet or less.
.saturday...west winds 10 to 15 knots. partly cloudy. a chance of
showers. waves 2 feet or less.

$$

fzus63 kdtx 041940
glflh 
expires:202605050345;;015182

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 pm edt mon may 4 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...southwest winds continue through this evening. a cold
front moves through tonight into tomorrow morning which veers
wind direction from southwest to north. behind the front, winds
across the region will be lighter and variable in direction.
another low pressure system organizes well south of the area
tuesday into wednesday, favoring the gradual development of
northeast winds. as this low moves over the northeast mid to late
week, northeast winds will back from the northeast to northerly,
and eventually take on a more westerly component by thursday.


lhz462>464-050345-
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-
340 pm edt mon may 4 2026

.tonight...south winds 15 to 20 knots becoming southwest 10 to
15 knots after midnight...then veering to the northwest early in
the morning. waves 3 to 5 feet. 
.tuesday...north winds 5 to 10 knots backing to the west in the
late morning and early afternoon...then backing to the southeast
late in the afternoon. waves 1 to 3 feet. 
.tuesday night...southeast winds 5 to 10 knots backing to the
northeast in the late evening and overnight. waves 2 feet or
less. 
.wednesday...north winds 5 to 10 knots. waves 2 feet or less. 
.wednesday night...north winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots veering to the northeast
late in the afternoon...then backing to the southwest late in the
evening. waves 2 feet or less. 
.friday...west winds 5 to 10 knots backing to the east early in
the evening...then veering to the south by midnight. waves 2 feet
or less. 
.saturday...southwest winds 5 to 10 knots backing to the
southeast early in the evening...then backing to the southeast
5 to 10 knots by midnight. a chance of showers early in the
evening. waves 2 feet or less. 


$$

fzus63 kdtx 041940
glflh 
expires:202605050345;;015181

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 pm edt mon may 4 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...southwest winds continue through this evening. a cold
front moves through tonight into tomorrow morning which veers
wind direction from southwest to north. behind the front, winds
across the region will be lighter and variable in direction.
another low pressure system organizes well south of the area
tuesday into wednesday, favoring the gradual development of
northeast winds. as this low moves over the northeast mid to late
week, northeast winds will back from the northeast to northerly,
and eventually take on a more westerly component by thursday.


lhz362-363-050345-
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-
340 pm edt mon may 4 2026

.tonight...southeast winds 15 to 20 knots with gusts to around
30 knots becoming north 10 to 15 knots late in the evening...then
backing to the northwest after midnight becoming west 5 to
10 knots early in the morning. a chance of showers in the
evening. waves 4 to 6 feet. waves occasionally around 8 feet. 
.tuesday...west winds 5 to 10 knots backing to the southwest
early in the afternoon...then veering to the southwest 5 to
10 knots late in the afternoon. waves 2 to 4 feet. 
.tuesday night...north winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.wednesday...north winds 5 to 10 knots. waves 1 to 3 feet. 
.wednesday night...north winds 5 to 10 knots backing to the
northwest after midnight. waves 1 to 3 feet. 
.thursday...west winds 5 to 10 knots backing to the east late in
the afternoon...then veering to the south late in the evening.
waves 2 feet or less. 
.friday...west winds 5 to 10 knots backing to the southeast early
in the evening...then veering to the south by midnight. waves
2 feet or less. 
.saturday...west winds 5 to 10 knots backing to the southeast
early in the evening...then becoming west 10 to 15 knots by
midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 041940
glflh 
expires:202605050345;;015180

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 pm edt mon may 4 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...southwest winds continue through this evening. a cold
front moves through tonight into tomorrow morning which veers
wind direction from southwest to north. behind the front, winds
across the region will be lighter and variable in direction.
another low pressure system organizes well south of the area
tuesday into wednesday, favoring the gradual development of
northeast winds. as this low moves over the northeast mid to late
week, northeast winds will back from the northeast to northerly,
and eventually take on a more westerly component by thursday.


lhz361-050345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
340 pm edt mon may 4 2026

.tonight...north winds 5 to 10 knots with gusts to around
30 knots becoming west 10 to 15 knots after midnight. a chance of
showers in the evening. waves 3 to 5 feet subsiding to 1 to
3 feet early in the morning. 
.tuesday...west winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. waves 2 to 4 feet. 
.tuesday night...west winds 10 to 15 knots becoming northwest
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...west winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. waves 1 to 3 feet. 
.wednesday night...northwest winds 10 to 15 knots decreasing to
5 to 10 knots in the late evening and overnight. waves 1 to
3 feet. 
.thursday...west winds 5 to 10 knots backing to the southwest
late in the evening. waves 2 feet or less. 
.friday...west winds 5 to 10 knots backing to the south early in
the evening...then veering to the west by midnight. waves 1 to
3 feet. 
.saturday...west winds 5 to 10 knots increasing to 10 to 15 knots
by midnight. waves 1 to 3 feet. 


$$