(1/9)
Latest Great Lakes Marine Forecast by KBUF
Issued 6/18/2026 4:02 AM America/New_York.
Valid through 6/18/2026 11:00 AM America/New_York.
fzus61 kbuf 180802
glflo
expires:202606181500;;945494
open lake forecast for lake ontario
national weather service buffalo ny
402 am edt thu jun 18 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...an unseasonably strong low over southern ontario this
morning will track to southern quebec this afternoon, deepening to
29.1 inches. the trailing cold front will move across the lake
today. this low will move slowly east to the canadian maritimes
friday while filling to 29.4 inches, eventually moving east of
newfoundland by saturday night. a weak ridge of high pressure
averaging 29.9 inches will then build into the great lakes saturday
night through sunday. a 29.7 inch low is then forecast to move over
or just south of the lower great lakes monday before moving off the
new england coast by tuesday.
loz063>065-181500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt thu jun 18 2026
.today...south winds to 30 knots becoming west. showers with a
chance of thunderstorms this morning, then a chance of showers
this afternoon. waves 5 to 9 feet. waves occasionally around
11 feet.
.tonight...west winds to 30 knots. waves 6 to 9 feet. waves
occasionally around 11 feet.
.friday...west winds 20 to 25 knots. waves 6 to 9 feet. waves
occasionally around 11 feet.
.friday night...west winds 15 to 25 knots. waves 5 to 9 feet
subsiding to 4 to 7 feet. waves occasionally around 11 feet.
.saturday...west winds 15 to 20 knots diminishing to 5 to
10 knots. waves 4 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 9 feet.
.sunday...west winds 10 knots or less becoming south. a chance of
showers sunday night. waves 2 feet or less.
.monday...east winds 5 to 10 knots becoming northwest. a chance
of showers. waves 1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(2/9)
Latest Great Lakes Marine Forecast by KBUF
Issued 6/18/2026 4:02 AM America/New_York.
Valid through 6/18/2026 11:00 AM America/New_York.
fzus61 kbuf 180802
glflo
expires:202606181500;;945493
open lake forecast for lake ontario
national weather service buffalo ny
402 am edt thu jun 18 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...an unseasonably strong low over southern ontario this
morning will track to southern quebec this afternoon, deepening to
29.1 inches. the trailing cold front will move across the lake
today. this low will move slowly east to the canadian maritimes
friday while filling to 29.4 inches, eventually moving east of
newfoundland by saturday night. a weak ridge of high pressure
averaging 29.9 inches will then build into the great lakes saturday
night through sunday. a 29.7 inch low is then forecast to move over
or just south of the lower great lakes monday before moving off the
new england coast by tuesday.
loz062-181500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt thu jun 18 2026
.today...southwest winds 15 to 25 knots becoming west. showers
early, then a chance of showers. waves 3 to 5 feet building to
5 to 8 feet. waves occasionally around 10 feet.
.tonight...west winds 15 to 25 knots. waves 5 to 8 feet subsiding
to 3 to 6 feet. waves occasionally around 10 feet.
.friday...west winds 15 to 25 knots. waves 3 to 6 feet.
.friday night...west winds 15 to 20 knots. waves 3 to 6 feet
subsiding to 2 to 4 feet.
.saturday...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet.
.sunday...west winds 10 knots or less becoming east. a chance of
showers sunday night. waves 1 foot or less.
.monday...northeast winds 5 to 15 knots becoming northwest. a
chance of showers during the day. waves 2 feet or less.
$$
(3/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 6/18/2026 3:44 AM America/New_York.
Valid through 6/18/2026 10:15 AM America/New_York.
fzus61 kcle 180744
glfle
expires:202606181415;;944821
open lake forecast for lake erie
national weather service cleveland oh
344 am edt thu jun 18 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 moves east of the area this morning. a surface
trough averaging 29.60 inches lingers across the lake through
saturday with high pressure 30.00 inches building overhead on
sunday. low pressure 29.80 inches impacts the region for the start
of next week.
lez061-169-181415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
344 am edt thu jun 18 2026
...gale warning in effect through this afternoon...
.today...southwest winds to 30 knots becoming west gales to 35
knots.. a chance of showers with a slight chance of thunderstorms
early, then a slight chance of showers and thunderstorms from late
morning on. waves 7 to 10 feet building to 9 to 13 feet. waves
occasionally around 16 feet.
.tonight...west winds 15 to 25 knots diminishing to 10 to
15 knots. a slight chance of showers and thunderstorms early,
then a slight chance of showers late in the evening. waves 7 to
10 feet subsiding to 3 to 5 feet. waves occasionally around
13 feet.
.friday...west winds 10 to 15 knots increasing to 15 to 20 knots.
waves 2 to 4 feet.
.friday night...west winds 15 to 20 knots becoming northwest and
diminishing to around 10 knots. waves 2 to 4 feet subsiding to
1 to 2 feet.
.saturday...west winds 5 to 15 knots diminishing to less than
10 knots. waves 1 to 2 feet.
.sunday...northwest winds 10 knots or less becoming east. a
chance of showers sunday night. waves 1 foot or less.
.monday...northeast winds 5 to 15 knots becoming north. a chance
of showers during the day. waves 2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(4/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 6/18/2026 3:44 AM America/New_York.
Valid through 6/18/2026 10:15 AM America/New_York.
fzus61 kcle 180744
glfle
expires:202606181415;;944819
open lake forecast for lake erie
national weather service cleveland oh
344 am edt thu jun 18 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
a cold front moves east of the area this morning. a surface
trough averaging 29.60 inches lingers across the lake through
saturday with high pressure 30.00 inches building overhead on
sunday. low pressure 29.80 inches impacts the region for the start
of next week.
lez162>164-181415-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
344 am edt thu jun 18 2026
...low water advisory in effect until 4 pm edt this afternoon...
.today...west winds to 30 knots. waves 5 to 8 feet. waves
occasionally around 10 feet.
.tonight...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet.
.friday...west winds 10 to 15 knots increasing to 15 to 20 knots.
waves 1 to 3 feet.
.friday night...west winds 10 to 15 knots. waves 1 to 3 feet.
.saturday...west winds 5 to 10 knots becoming northwest. waves
2 feet or less.
.sunday...north winds 10 knots or less becoming northeast and
increasing to 15 to 20 knots. a chance of showers during the day,
then showers likely sunday night. waves 2 feet or less building
to 2 to 4 feet.
.monday...northeast winds 15 to 20 knots becoming north 10 to
15 knots. a chance of showers during the day. waves 3 to 5 feet
subsiding to 1 to 3 feet.
$$
(5/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 6/18/2026 3:44 AM America/New_York.
Valid through 6/18/2026 10:15 AM America/New_York.
fzus61 kcle 180744
glfle
expires:202606181415;;944820
open lake forecast for lake erie
national weather service cleveland oh
344 am edt thu jun 18 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 moves east of the area this morning. a surface
trough averaging 29.60 inches lingers across the lake through
saturday with high pressure 30.00 inches building overhead on
sunday. low pressure 29.80 inches impacts the region for the start
of next week.
lez165>168-181415-
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-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
344 am edt thu jun 18 2026
...gale warning in effect through this afternoon...
.today...west gales to 35 knots. a slight chance of showers
early. a slight chance of showers late. waves 8 to 12 feet. waves
occasionally around 15 feet.
.tonight...west winds 15 to 25 knots diminishing to 10 to
15 knots. waves 6 to 9 feet subsiding to 2 to 4 feet. waves
occasionally around 11 feet.
.friday...west winds 10 to 15 knots. waves 2 to 4 feet.
.friday night...west winds 10 to 15 knots becoming northwest.
waves 1 to 3 feet.
.saturday...west winds 5 to 10 knots becoming northwest. waves
1 to 3 feet.
.sunday...north winds less than 10 knots becoming northeast and
increasing to 15 to 20 knots. a chance of showers during the day,
then showers likely sunday night. waves 1 to 3 feet.
.monday...northeast winds 15 to 20 knots becoming north 10 to
15 knots. a chance of showers during the day. waves 3 to 5 feet
subsiding to 1 to 3 feet.
$$
(6/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/18/2026 3:52 AM America/New_York.
Valid through 6/18/2026 12:00 PM America/New_York.
fzus63 kdtx 180752
glflh
expires:202606181600;;945094
open lake forecast for lake huron
national weather service detroit/pontiac mi
352 am edt thu jun 18 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a very strong low pressure system, 29.20 inches, will
depart from lake huron into quebec today. this will re-orient
winds from the west-northwest for all locations by the afternoon.
breezy conditions will persist through the day in the wake of
this low pressure system.
lhz362-363-181600-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
352 am edt thu jun 18 2026
.today...north winds 10 to 15 knots backing to the west in the
afternoon. a chance of showers in the morning. waves 4 to 6 feet.
waves occasionally around 8 feet.
.tonight...west winds 10 to 15 knots. waves 3 to 5 feet.
.friday...west winds 10 to 15 knots. waves 3 to 5 feet.
.friday night...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. waves 3 to 5 feet.
.saturday...west winds 5 to 10 knots in the morning becoming
light and variable...then becoming northwest 5 to 10 knots late
in the evening. waves 1 to 3 feet.
.sunday...northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming northeast 5 to
10 knots by midnight. waves 2 feet or less.
.monday...north winds 5 to 10 knots increasing to 10 to 15 knots.
waves 1 to 3 feet.
$$
(7/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/18/2026 3:52 AM America/New_York.
Valid through 6/18/2026 12:00 PM America/New_York.
fzus63 kdtx 180752
glflh
expires:202606181600;;945095
open lake forecast for lake huron
national weather service detroit/pontiac mi
352 am edt thu jun 18 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 very strong low pressure system, 29.20 inches, will
depart from lake huron into quebec today. this will re-orient
winds from the west-northwest for all locations by the afternoon.
breezy conditions will persist through the day in the wake of
this low pressure system.
lhz462>464-181600-
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-
352 am edt thu jun 18 2026
.today...west winds 15 to 20 knots decreasing to 10 to 15 knots
late in the afternoon. waves 3 to 5 feet.
.tonight...west winds 10 to 15 knots. waves 2 to 4 feet subsiding
to 1 to 3 feet early in the morning.
.friday...west winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and afternoon. waves 1 to 3 feet.
.friday night...light and variable winds becoming west 5 to
10 knots after midnight. waves 2 feet or less.
.saturday...west winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less.
.sunday...light and variable winds becoming northeast 5 to
10 knots . waves 2 feet or less.
.monday...north winds 10 to 15 knots. waves 2 to 4 feet.
$$
(8/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/18/2026 3:52 AM America/New_York.
Valid through 6/18/2026 12:00 PM America/New_York.
fzus63 kdtx 180752
glflh
expires:202606181600;;945093
open lake forecast for lake huron
national weather service detroit/pontiac mi
352 am edt thu jun 18 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a very strong low pressure system, 29.20 inches, will
depart from lake huron into quebec today. this will re-orient
winds from the west-northwest for all locations by the afternoon.
breezy conditions will persist through the day in the wake of
this low pressure system.
lhz361-181600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
352 am edt thu jun 18 2026
.today...north winds 10 to 15 knots backing to the northwest
early in the afternoon...then becoming west 15 to 20 knots late
in the afternoon. showers likely in the morning. patchy fog in
the morning. waves 3 to 5 feet.
.tonight...west winds 15 to 20 knots decreasing to 10 to 15 knots
in the late evening and overnight. waves 2 to 4 feet.
.friday...west winds 10 to 15 knots increasing to 15 to 20 knots
early in the afternoon. waves 2 to 4 feet.
.friday night...west winds 10 to 15 knots becoming northwest 5 to
10 knots in the late evening and overnight. waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight.
.saturday...west winds 5 to 10 knots. waves 2 feet or less.
.sunday...northwest winds 5 to 10 knots. waves 2 feet or less.
.monday...northwest winds 5 to 10 knots increasing to 10 to
15 knots . waves 1 to 3 feet.
$$
(9/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/18/2026 3:52 AM America/New_York.
Valid through 6/18/2026 12:00 PM America/New_York.
fzus63 kdtx 180752
glfsc
expires:202606181600;;945098
lake st clair forecast
national weather service detroit/pontiac mi
352 am edt thu jun 18 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 very strong low pressure system, 29.20 inches, will
depart from lake huron into quebec today. this will re-orient
winds from the west-northwest for all locations by the afternoon.
breezy conditions will persist through the day in the wake of
this low pressure system.
lcz460-181600-
lake st clair-
352 am edt thu jun 18 2026
...small craft advisory in effect through this evening...
.today...west winds 20 to 25 knots with gusts to 30 knots. partly
sunny. waves 2 to 4 feet.
.tonight...west winds 15 to 20 knots diminishing to 10 to 15 knots
in the late evening and overnight. mostly clear. waves 1 to 3 feet.
.friday...west winds 5 to 10 knots increasing to 10 to 15 knots in
the late morning and afternoon. sunny. waves 2 feet or less.
.friday night...northwest winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. mostly clear. waves 2 feet or less.
.saturday...west winds 5 to 10 knots. mostly sunny in the
morning...then mostly clear with a chance of light showers in the
afternoon and evening. waves 2 feet or less.
.sunday...east winds 10 to 15 knots. partly cloudy. a chance of
showers. waves 2 feet or less.
.monday...northeast winds 15 to 20 knots. partly cloudy. a chance of
showers. waves 1 to 3 feet.
$$
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