(1/7)
Latest Great Lakes Marine Forecast by KBUF
Issued 5/1/2026 10:02 AM America/New_York.
Valid through 5/1/2026 5:00 PM America/New_York.
fzus61 kbuf 011402
glflo
expires:202605012100;;838714
open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri may 1 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 across atlantic canada will retrograde
northwestward across the canadian maritimes and quebec through
saturday. another 29.7 inch low will deepen to 29.2 inches as it
tracks from the southeastern states northeast off the atlantic coast
saturday and sunday, while a 30.2 inch high ridges across the lower
great lakes. a 29.1 inch low will spin over ontario, quebec, and
hudson bay monday through tuesday night, sending an attendant cold
front across the lake tuesday.
loz062-012100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt fri may 1 2026
.this afternoon...east winds 10 knots or less becoming southeast.
a chance of showers late. waves 2 feet or less.
.tonight...southeast winds 5 to 10 knots becoming northwest. a
chance of rain showers early. waves 2 feet or less.
.saturday...northwest winds 5 to 10 knots becoming west. waves
1 foot or less.
.saturday night...west winds 5 to 10 knots becoming northwest.
waves 1 foot or less.
.sunday...west winds 10 to 15 knots becoming southwest 15 to
20 knots. a chance of rain showers sunday night. waves 1 to
2 feet building to 2 to 4 feet.
.monday...southwest winds 15 to 25 knots increasing to 30 knots.
a chance of showers. waves 2 to 4 feet building to 5 to 8 feet.
waves occasionally around 10 feet.
.tuesday...southwest winds 15 to 25 knots becoming southeast and
diminishing to 10 to 15 knots. showers likely. waves 4 to 7 feet
subsiding to 1 to 3 feet. waves occasionally around 9 feet.
$$
(2/7)
Latest Great Lakes Marine Forecast by KBUF
Issued 5/1/2026 10:02 AM America/New_York.
Valid through 5/1/2026 5:00 PM America/New_York.
fzus61 kbuf 011402
glflo
expires:202605012100;;838715
open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri may 1 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a 29.7 inch low across atlantic canada will retrograde
northwestward across the canadian maritimes and quebec through
saturday. another 29.7 inch low will deepen to 29.2 inches as it
tracks from the southeastern states northeast off the atlantic coast
saturday and sunday, while a 30.2 inch high ridges across the lower
great lakes. a 29.1 inch low will spin over ontario, quebec, and
hudson bay monday through tuesday night, sending an attendant cold
front across the lake tuesday.
loz063>065-012100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt fri may 1 2026
.this afternoon...east winds 10 knots or less becoming north. a
chance of rain showers late. waves 1 foot or less.
.tonight...southwest winds 5 to 15 knots becoming west. a chance
of showers in the evening. waves 2 feet or less.
.saturday...west winds 5 to 15 knots. waves 1 to 2 feet.
.saturday night...west winds 5 to 10 knots becoming northwest.
waves 1 to 2 feet.
.sunday...west winds 5 to 15 knots becoming southwest. a chance
of rain showers sunday night. waves 1 to 3 feet.
.monday...south winds 15 to 25 knots. a chance of showers. waves
2 to 4 feet building to 4 to 7 feet. waves occasionally around
9 feet.
.tuesday...southwest winds 15 to 25 knots becoming south and
diminishing to 10 to 15 knots. showers likely. waves 4 to 7 feet
subsiding to 1 to 2 feet. waves occasionally around 9 feet.
$$
(3/7)
Latest Great Lakes Marine Forecast by KCLE
Issued 5/1/2026 9:49 AM America/New_York.
Valid through 5/1/2026 4:15 PM America/New_York.
fzus61 kcle 011349
glfle
expires:202605012015;;838346
open lake forecast for lake erie
national weather service cleveland oh
949 am edt fri may 1 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 averaging 29.90 inches will persist over lake erie
through today, followed by building high pressure 30.10 inches
for the weekend. low pressure 29.70 inches will track east through
the upper great lakes on monday and extend a cold front across
lake erie by tuesday.
lez162>166-012015-
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-
949 am edt fri may 1 2026
.rest of today...northeast winds 5 to 10 knots becoming north.
showers likely late this morning, then a chance of showers early
this afternoon. waves 2 feet or less.
.tonight...northwest winds 5 to 10 knots becoming north. a slight
chance of showers. waves 1 foot or less.
.saturday...north winds 5 to 10 knots becoming northwest. waves
1 foot or less.
.saturday night...northwest winds 5 to 10 knots becoming west.
waves 1 foot or less.
.sunday...west winds 10 to 15 knots becoming southwest 15 to
20 knots. waves 1 to 3 feet building to 3 to 6 feet.
.monday...southwest winds 15 to 25 knots. a chance of showers
during the day, then a chance of showers and thunderstorms monday
night. waves 3 to 6 feet.
.tuesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. showers likely. waves 3 to 6 feet subsiding to 2 to
4 feet.
winds and waves higher in and near thunderstorms.
$$
(4/7)
Latest Great Lakes Marine Forecast by KCLE
Issued 5/1/2026 9:49 AM America/New_York.
Valid through 5/1/2026 4:15 PM America/New_York.
fzus61 kcle 011349
glfle
expires:202605012015;;838347
open lake forecast for lake erie
national weather service cleveland oh
949 am edt fri may 1 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 averaging 29.90 inches will persist over lake erie
through today, followed by building high pressure 30.10 inches
for the weekend. low pressure 29.70 inches will track east through
the upper great lakes on monday and extend a cold front across
lake erie by tuesday.
lez061-167>169-012015-
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-
949 am edt fri may 1 2026
.rest of today...northeast winds 10 knots or less becoming
northwest. rain showers likely late this morning, then a chance
of rain showers early this afternoon. waves 2 feet or less.
.tonight...west winds 5 to 10 knots becoming north. waves 1 foot
or less.
.saturday...north winds 5 to 10 knots becoming west. waves 1 foot
or less.
.saturday night...west winds 5 to 10 knots. waves 1 foot or less.
.sunday...west winds 5 to 15 knots becoming southwest 15 to
20 knots. waves 2 feet or less building to 3 to 6 feet.
.monday...southwest winds 15 to 25 knots. a chance of showers
during the day, then showers likely monday night. waves 3 to
6 feet.
.tuesday...southwest winds 15 to 20 knots diminishing to 5 to
15 knots. showers likely. waves 3 to 6 feet subsiding to 1 to
3 feet.
winds and waves higher in and near thunderstorms.
$$
(5/7)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/1/2026 9:41 AM America/New_York.
Valid through 5/1/2026 5:45 PM America/New_York.
fzus63 kdtx 011341
glflh
expires:202605012145;;838209
open lake forecast for lake huron
national weather service detroit/pontiac mi
941 am edt fri may 1 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 slow moving low pressure system will continue to
impact the great lakes through the end of the week. this will
reinforce light north to northwest flow and will bring periodic
rain showers.
lhz361-362-012145-
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-
941 am edt fri may 1 2026
.rest of today...northwest winds 5 to 10 knots. waves 1 to
3 feet.
.tonight...northwest winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet in the late evening and overnight.
.saturday...west winds 5 to 10 knots. waves 1 to 3 feet.
.saturday night...southwest winds 5 to 10 knots. waves 1 to
3 feet.
.sunday...south winds 5 to 10 knots increasing to 10 to 15 knots.
waves 1 to 3 feet building to 3 to 5 feet late in the afternoon.
.monday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. a chance of showers . waves 3 to 5 feet building to
6 to 9 feet . waves occasionally around 12 feet.
.tuesday...west winds 15 to 20 knots decreasing to 10 to 15 knots
until early evening...then veering to the west 10 to 15 knots by
midnight. a chance of showers . waves 4 to 6 feet subsiding to
2 to 4 feet by midnight. waves occasionally around 8 feet.
$$
(6/7)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/1/2026 9:41 AM America/New_York.
Valid through 5/1/2026 5:45 PM America/New_York.
fzus63 kdtx 011341
glflh
expires:202605012145;;838210
open lake forecast for lake huron
national weather service detroit/pontiac mi
941 am edt fri may 1 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a slow moving low pressure system will continue to
impact the great lakes through the end of the week. this will
reinforce light north to northwest flow and will bring periodic
rain showers.
lhz363-462>464-012145-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
941 am edt fri may 1 2026
.rest of today...north winds 5 to 10 knots. waves 1 to 3 feet.
.tonight...north winds 5 to 10 knots backing to the northwest
after midnight...then increasing to 10 to 15 knots early in the
morning. waves 1 to 3 feet.
.saturday...northwest winds 10 to 15 knots becoming north 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet.
.saturday night...light and variable winds becoming south 5 to
10 knots by midnight...then veering to the southwest after
midnight. waves 2 feet or less.
.sunday...southwest winds 5 to 10 knots increasing to 10 to
15 knots. waves 1 to 3 feet building to 3 to 5 feet.
.monday...south winds 10 to 15 knots becoming southwest 15 to
20 knots . a chance of showers . waves 4 to 6 feet.
.tuesday...west winds 10 to 15 knots becoming northeast by
midnight. a chance of showers. waves 3 to 5 feet subsiding to
1 to 3 feet . waves occasionally around 8 feet.
$$
(7/7)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/1/2026 9:41 AM America/New_York.
Valid through 5/1/2026 5:45 PM America/New_York.
fzus63 kdtx 011341
glfsc
expires:202605012145;;838213
lake st clair forecast
national weather service detroit/pontiac mi
941 am edt fri may 1 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 slow moving low pressure system will continue to
impact the great lakes through the end of the week. this will
reinforce light north to northwest flow and will bring periodic
showers.
lcz460-012145-
lake st clair-
941 am edt fri may 1 2026
.rest of today...north winds 5 to 10 knots. partly sunny. a chance
of light showers late in the afternoon. waves 2 feet or less.
.tonight...north winds 5 to 10 knots becoming light and variable.
partly cloudy becoming mostly cloudy late this evening becoming
partly cloudy. waves 2 feet or less.
.saturday...northwest winds 5 to 10 knots. partly sunny. waves 2
feet or less.
.saturday night...north winds 5 to 10 knots backing to the west
after midnight. partly cloudy. waves 2 feet or less.
.sunday...southwest winds 10 to 15 knots increasing to 15 to 20
knots in the afternoon and evening. mostly sunny becoming partly
sunny in the afternoon becoming mostly cloudy. waves 2 feet or less.
.monday...southwest winds 15 to 20 knots. partly cloudy. a chance of
showers and thunderstorms. waves 1 to 3 feet.
.tuesday...northwest winds 15 to 20 knots. mostly cloudy with
showers likely and a chance of thunderstorms. waves 1 to 3 feet.
$$
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