fzus61 kbuf 040203
glflo 
expires:202605040900;;975429

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sun may 3 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 29.7 inch low well southeast of maine will deepen to 
28.8 inches as it tracks to atlantic canada through tonight, while a 
30.2 inch high centered over the tennessee valley slides east and 
off the carolina coast. a 29.1 inch low over western ontario 
province monday will then weaken to 29.3 inches as it moves to 
northern quebec through tuesday, with its trailing wavy cold front 
slowly crossing the lake tuesday, then drifting across new england 
through wednesday.


loz062-040900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sun may 3 2026

.rest of tonight...southwest winds 10 to 15 knots increasing to
15 to 20 knots. a chance of showers late this evening. waves 2 to
4 feet building to 3 to 5 feet. 
.monday...southwest winds 15 to 20 knots. waves 2 to 4 feet. 
.monday night...southwest winds 15 to 20 knots. a chance of
showers. waves 2 to 4 feet building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming west. a chance
of showers in the morning, then showers likely in the afternoon.
waves 3 to 5 feet. 
.tuesday night...northwest winds 5 to 15 knots. rain. waves 1 to
3 feet. 
.wednesday...northwest winds 5 to 10 knots. rain during the day.
waves 1 foot or less. 
.thursday...northwest winds 10 knots or less becoming west 10 to
15 knots. waves 2 feet or less. 
.friday...west winds 5 to 15 knots. waves 1 to 2 feet. 

$$

fzus61 kbuf 040203
glflo 
expires:202605040900;;975430

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sun may 3 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 29.7 inch low well southeast of maine will deepen to 
28.8 inches as it tracks to atlantic canada through tonight, while a 
30.2 inch high centered over the tennessee valley slides east and 
off the carolina coast. a 29.1 inch low over western ontario 
province monday will then weaken to 29.3 inches as it moves to 
northern quebec through tuesday, with its trailing wavy cold front 
slowly crossing the lake tuesday, then drifting across new england 
through wednesday.


loz063>065-040900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sun may 3 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 040120
glfle 
expires:202605040815;;974822

open lake forecast for lake erie
national weather service cleveland oh
920 pm edt sun may 3 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 trough of 29.50 inches moves into the upper great lakes tonight.
this trough will settle south across the central great lakes 
monday into tuesday, with a cold front moving south across lake
erie on tuesday. high pressure of 30.00 inches builds over lake 
erie on wednesday followed by a trough of 29.80 inches moving over
the lake on thursday.


lez162>165-040815-
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-
920 pm edt sun may 3 2026

.overnight...southwest winds 15 to 25 knots. a slight
chance of rain. waves 3 to 6 feet. 
.monday...southwest winds 15 to 20 knots. a slight chance of
showers and thunderstorms late. waves 3 to 6 feet subsiding to
1 to 3 feet. 
.monday night...southwest winds 15 to 20 knots. showers likely
with a chance of thunderstorms in the evening, then showers
likely overnight. waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. showers likely 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...north winds 5 to 10 knots. showers with a chance
of thunderstorms in the evening, then showers overnight. waves
1 to 2 feet. 
.wednesday...north winds 5 to 10 knots becoming west. waves
2 feet or less. 
.thursday...northwest winds 10 to 15 knots becoming west. a
chance of showers during the day. waves 1 to 2 feet. 
.friday...southwest winds 5 to 15 knots becoming west. a chance
of showers. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 040120
glfle 
expires:202605040815;;974823

open lake forecast for lake erie
national weather service cleveland oh
920 pm edt sun may 3 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 trough of 29.50 inches moves into the upper great lakes tonight.
this trough will settle south across the central great lakes 
monday into tuesday, with a cold front moving south across lake
erie on tuesday. high pressure of 30.00 inches builds over lake 
erie on wednesday followed by a trough of 29.80 inches moving over
the lake on thursday.


lez061-166>169-040815-
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-
920 pm edt sun may 3 2026

.overnight...southwest winds 15 to 20 knots. a slight
chance of rain. waves 3 to 6 feet. 
.monday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.monday night...southwest winds 15 to 20 knots. showers likely
with a chance of thunderstorms in the evening, then showers
likely overnight. 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 in the morning, then showers in the
afternoon. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.tuesday night...northwest winds 5 to 15 knots becoming north.
showers. waves 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots becoming west. a chance of
showers during the day. waves 2 feet or less. 
.thursday...north winds 5 to 15 knots becoming west. a chance of
showers during the day. waves 2 feet or less. 
.friday...west winds 5 to 15 knots. a chance of showers. waves
1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 040720
glfsc 
expires:202605041530;;988051

lake st clair forecast
national weather service detroit/pontiac mi
320 am 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 today with localized
elevated winds found within the saginaw bay. a cold front moves
through tonight into tomorrow morning which veers wind direction
from southwest to northwest.


lcz460-041530-
lake st clair-
320 am edt mon may 4 2026

.today...southwest winds 10 to 15 knots increasing to 15 to 20 knots
in the afternoon. sunny. waves 1 to 3 feet.
.tonight...southwest winds 15 to 20 knots. partly cloudy becoming
mostly cloudy. a chance of light showers. waves 1 to 3 feet.
.tuesday...west winds 10 to 15 knots becoming northwest 5 to 10
knots in the late morning and afternoon. mostly cloudy. a chance of
light showers until late afternoon...then light showers likely early
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 early in the evening...then a
chance of light showers in the late evening and overnight. waves 2
feet or less.
.wednesday...north winds 5 to 10 knots. partly sunny becoming mostly
cloudy. waves 2 feet or less.
.thursday...west winds 5 to 10 knots. partly cloudy. a chance of
showers. waves 2 feet or less.
.friday...west winds 10 to 15 knots. partly cloudy. a chance of
showers. waves 2 feet or less.

$$

fzus63 kdtx 040711
glflh 
expires:202605041515;;987806

open lake forecast for lake huron
national weather service detroit/pontiac mi
311 am 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 today with localized
elevated winds found within the saginaw bay. a cold front moves
through tonight into tomorrow morning which veers wind direction
from southwest to northwest.


lhz361-041515-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
311 am edt mon may 4 2026

.today...south winds 10 to 15 knots increasing to 15 to 20 knots
in the afternoon. a chance of showers in the afternoon. waves
1 to 3 feet building to 3 to 5 feet in the late morning and
afternoon. 
.tonight...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots by midnight...then backing to the west early in
the morning. 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 late in the morning...then becoming northwest 5 to
10 knots late in the evening. waves 1 to 3 feet. 
.thursday...west winds 5 to 10 knots. waves 2 feet or less. 
.friday...west winds 5 to 10 knots increasing to 10 to 15 knots
early in the evening...then decreasing to 5 to 10 knots by
midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 040711
glflh 
expires:202605041515;;987807

open lake forecast for lake huron
national weather service detroit/pontiac mi
311 am 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 today with localized
elevated winds found within the saginaw bay. a cold front moves
through tonight into tomorrow morning which veers wind direction
from southwest to northwest.


lhz362-363-041515-
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-
311 am edt mon may 4 2026

.today...southwest winds 10 to 15 knots becoming south 15 to
20 knots in the afternoon. waves 2 to 4 feet building to 5 to
7 feet. waves occasionally around 10 feet. 
.tonight...south winds 15 to 20 knots becoming southwest 10 to
15 knots by midnight...then becoming 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...north winds 5 to 10 knots backing to the southwest in
the late morning and early afternoon...then veering to the
southwest 5 to 10 knots early 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. 
.thursday...north winds 5 to 10 knots veering to the east early
in the evening...then veering to the south by midnight. waves
2 feet or less. 
.friday...west winds 5 to 10 knots backing to the southeast early
in the evening...then backing to the northeast by midnight. waves
1 to 3 feet. 


$$

fzus63 kdtx 040711
glflh 
expires:202605041515;;987808

open lake forecast for lake huron
national weather service detroit/pontiac mi
311 am 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 today with localized
elevated winds found within the saginaw bay. a cold front moves
through tonight into tomorrow morning which veers wind direction
from southwest to northwest.


lhz462>464-041515-
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-
311 am edt mon may 4 2026

.today...south winds 10 to 15 knots increasing to 15 to 20 knots
late in the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet
late in the morning...then building to 3 to 5 feet in the
afternoon. 
.tonight...south winds 15 to 20 knots becoming southwest 10 to
15 knots after midnight. a chance of showers after midnight.
waves 2 to 4 feet. 
.tuesday...north winds 5 to 10 knots backing to the northwest in
the late morning and early afternoon...then backing to the south
early in the afternoon. waves 1 to 3 feet. 
.tuesday night...east 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 becoming light and
variable. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots early in the morning
becoming light and variable...then becoming west 5 to 10 knots by
midnight. waves 2 feet or less. 
.friday...west winds 5 to 10 knots backing to the southeast early
in the evening...then backing to the southeast 5 to 10 knots by
midnight. waves 2 feet or less. 


$$

fzus63 kmkx 040235
glflm 
expires:202605040930;;976386

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
935 pm cdt sun may 3 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

a weak cold front will continue to pass over the lake this 
evening, easing winds for a time before winds return to a 
southerly direction and become gusty again around dawn on monday. 
winds will then increase monday morning ahead of another cold 
front in association with low pressure of 29.0 inches moving 
across ontario. a short 6 hour period of gales is anticipated over
the northern third of lake michigan between 10am and 4pm cdt. 
winds then ease through the afternoon from north to south over the
lake as the cold front moves south. winds behind the front will 
become northwesterly.

the pressure gradient will then ease over the lake tuesday
through thursday, with light and persistent west to northwest 
winds occuring. light and variable winds may briefly occur at times 
as various weak surface ridges move across the lake.


lmz366-565-567-868-040930-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
935 pm cdt sun may 3 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

.rest of tonight...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to
2 to 4 ft. 
.monday...south winds 15 to 25 kt becoming southwest to 30 kt.
chance of rain showers and slight chance of thunderstorms in the
afternoon. waves 2 to 4 ft building to 5 to 8 ft occasionally to
10 ft. 
.monday night...southwest winds 10 to 20 kt veering to north
10 to 15 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to
2 to 4 ft. 
.tuesday...northwest winds 10 to 15 kt becoming northeast. waves
1 to 3 ft. 
.tuesday night...southwest winds 5 to 10 kt veering to north.
waves 1 to 2 ft. 
.wednesday...north winds 10 to 15 kt veering to east. waves 1 to
2 ft. 
.wednesday night...southwest winds 5 to 10 kt becoming west.
waves 1 ft or less. 
.thursday...west winds 5 to 10 kt becoming southwest 10 to 15 kt.
waves 1 ft or less. 
.friday...west winds 5 to 10 kt becoming south. waves 1 to 2 ft. 

$$

fzus63 kmkx 040235
glflm 
expires:202605040930;;976387

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
935 pm cdt sun may 3 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

a weak cold front will continue to pass over the lake this 
evening, easing winds for a time before winds return to a 
southerly direction and become gusty again around dawn on monday. 
winds will then increase monday morning ahead of another cold 
front in association with low pressure of 29.0 inches moving 
across ontario. a short 6 hour period of gales is anticipated over
the northern third of lake michigan between 10am and 4pm cdt. 
winds then ease through the afternoon from north to south over the
lake as the cold front moves south. winds behind the front will 
become northwesterly.

the pressure gradient will then ease over the lake tuesday
through thursday, with light and persistent west to northwest 
winds occuring. light and variable winds may briefly occur at times 
as various weak surface ridges move across the lake.


lmz080-669-671-673-675-777-779-870-872-874-876-878-040930-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
935 pm cdt sun may 3 2026

sheboygan wi to pentwater mi south...

.rest of tonight...southwest winds 15 to 25 kt diminishing to
10 to 15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to
2 to 4 ft. 
.monday...southwest winds 10 to 20 kt becoming south to 30 kt.
waves 1 to 3 ft building to 4 to 6 ft occasionally to 8 ft. 
.monday night...southwest winds 15 to 25 kt becoming west 10 to
20 kt late in the evening, then becoming northwest 10 to 15 kt
overnight. chance of rain showers. waves 4 to 6 ft occasionally
to 8 ft subsiding to 1 to 3 ft. 
.tuesday...north winds 10 to 15 kt. chance of rain showers. waves
1 to 3 ft. 
.tuesday night...northwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.wednesday...north winds 10 to 15 kt. waves 1 to 3 ft. 
.wednesday night...south winds 5 to 10 kt becoming west. waves
1 to 2 ft. 
.thursday...west winds 10 to 15 kt becoming southwest. waves 1 ft
or less. 
.friday...west winds 5 to 10 kt becoming southwest 10 to 15 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 040235
glflm 
expires:202605040930;;976385

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
935 pm cdt sun may 3 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

a weak cold front will continue to pass over the lake this 
evening, easing winds for a time before winds return to a 
southerly direction and become gusty again around dawn on monday. 
winds will then increase monday morning ahead of another cold 
front in association with low pressure of 29.0 inches moving 
across ontario. a short 6 hour period of gales is anticipated over
the northern third of lake michigan between 10am and 4pm cdt. 
winds then ease through the afternoon from north to south over the
lake as the cold front moves south. winds behind the front will 
become northwesterly.

the pressure gradient will then ease over the lake tuesday
through thursday, with light and persistent west to northwest 
winds occuring. light and variable winds may briefly occur at times 
as various weak surface ridges move across the lake.


lmz261-362-364-563-040930-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
935 pm cdt sun may 3 2026

sturgeon bay wi to point betsie mi north...

...gale warning in effect from monday morning through monday
afternoon...

.rest of tonight...southwest winds 10 to 20 kt becoming south.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.monday...south winds to 30 kt becoming southwest gales to 35
knots. slight chance of rain showers in the afternoon. waves 3 to
5 ft building to 6 to 9 ft occasionally to 12 ft. 
.monday night...west winds 10 to 20 kt becoming northwest 10 to
15 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to
4 ft. 
.tuesday...northwest winds 10 to 20 kt becoming southwest. waves
1 to 3 ft. 
.tuesday night...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.wednesday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft. 
.wednesday night...west winds 10 to 15 kt becoming southwest less
than 10 kt. waves 1 to 2 ft. 
.thursday...southwest winds 10 to 15 kt. waves 1 to 2 ft. 
.friday...west winds 10 to 15 kt becoming southwest 10 to 20 kt.
waves 1 to 2 ft.  

$$