(1/9)
Latest Great Lakes Marine Forecast by KBUF
Issued 4/17/2026 10:10 AM America/New_York.
Valid through 4/17/2026 5:00 PM America/New_York.
fzus61 kbuf 171410
glflo
expires:202604172100;;524316
open lake forecast for lake ontario
national weather service buffalo ny
1009 am edt fri apr 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 30.0 inch high over the lake this evening will slide
east into new england tonight. meanwhile, a 29.4 inch low near lake
superior this evening will move to james bay and deepen to 29.0
inches saturday, while pushing a trailing strong cold front across
the lake later saturday and saturday evening. a 30.4 inch high will
then settle southeastward across the great lakes sunday through
monday night, before sliding off the mid-atlantic coast tuesday. a
29.4 inch low over lower hudson bay tuesday, will weaken to 29.9
inches by wednesday, while pushing an attendant weak cold front
across the lake tuesday night. a 30.2 inch high will then build
across the great lakes region wednesday and thursday.
loz062-172100-
lake ontario open waters from the niagara river to hamlin beach-
1009 am edt fri apr 17 2026
.this afternoon...north winds less than 10 knots becoming east.
areas of fog. waves 1 foot or less.
.tonight...east winds 10 knots or less becoming southeast. waves
1 foot or less.
.saturday...southeast winds 10 to 15 knots becoming southwest
15 to 20 knots. a chance of showers in the morning, then showers
in the afternoon. waves 1 to 3 feet building to 2 to 4 feet.
.saturday night...west winds 15 to 20 knots becoming northwest.
rain showers in the evening, then rain showers likely overnight.
waves 3 to 5 feet.
.sunday...west winds 15 to 20 knots becoming northwest. a chance
of rain showers. waves 3 to 5 feet.
.monday...northwest winds 15 to 20 knots becoming southwest 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet.
.tuesday...south winds 15 to 20 knots becoming west 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet.
$$
(2/9)
Latest Great Lakes Marine Forecast by KBUF
Issued 4/17/2026 10:10 AM America/New_York.
Valid through 4/17/2026 5:00 PM America/New_York.
fzus61 kbuf 171410
glflo
expires:202604172100;;524317
open lake forecast for lake ontario
national weather service buffalo ny
1009 am edt fri apr 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 30.0 inch high over the lake this evening will slide
east into new england tonight. meanwhile, a 29.4 inch low near lake
superior this evening will move to james bay and deepen to 29.0
inches saturday, while pushing a trailing strong cold front across
the lake later saturday and saturday evening. a 30.4 inch high will
then settle southeastward across the great lakes sunday through
monday night, before sliding off the mid-atlantic coast tuesday. a
29.4 inch low over lower hudson bay tuesday, will weaken to 29.9
inches by wednesday, while pushing an attendant weak cold front
across the lake tuesday night. a 30.2 inch high will then build
across the great lakes region wednesday and thursday.
loz063>065-172100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1009 am edt fri apr 17 2026
.this afternoon...north winds 5 to 10 knots becoming northwest.
patchy fog. waves 1 foot or less.
.tonight...west winds 10 knots or less becoming southeast 10 to
15 knots. waves 1 foot or less.
.saturday...southeast winds 15 to 20 knots becoming south.
showers in the afternoon. waves 1 to 3 feet building to 3 to
5 feet.
.saturday night...south winds 15 to 20 knots becoming west. rain
showers. waves 3 to 5 feet.
.sunday...west winds 15 to 25 knots becoming northwest. rain
showers during the day. waves 3 to 6 feet building to 4 to
7 feet. waves occasionally around 9 feet.
.monday...northwest winds 15 to 20 knots becoming west. waves
3 to 6 feet subsiding to 2 to 4 feet.
.tuesday...south winds 15 to 20 knots becoming southwest. a
chance of rain showers tuesday night. waves 1 to 3 feet building
to 2 to 4 feet.
$$
(3/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 4/17/2026 3:48 PM America/New_York.
Valid through 4/17/2026 10:30 PM America/New_York.
fzus61 kcle 171948
glfle
expires:202604180230;;539388
open lake forecast for lake erie
national weather service cleveland oh
348 pm edt fri apr 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 warm front will lift north across lake erie saturday morning
before low pressure 29.40 inches drags a cold front east through
the great lakes and ohio valley saturday evening. a trough
averaging 29.90 inches builds across the lake on sunday before
high pressure 30.40 inches moves overhead sunday night into
monday.
lez061-169-180230-
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-
348 pm edt fri apr 17 2026
.tonight...northeast winds 10 knots or less becoming southeast
10 to 15 knots. areas of dense fog. patchy fog late. waves 2 feet
or less.
.saturday...south winds 15 to 20 knots becoming southwest. a
slight chance of showers in the morning, then showers with a
chance of thunderstorms in the afternoon. waves 1 to 3 feet
building to 2 to 4 feet.
.saturday night...southwest winds 10 to 15 knots becoming west.
rain showers likely in the evening, then a chance of rain showers
overnight. waves 2 to 4 feet.
.sunday...west winds 10 to 15 knots. a chance of rain and snow
showers in the afternoon. waves 2 to 4 feet.
.sunday night...west winds 10 to 15 knots becoming northwest. a
chance of rain showers in the evening. waves 2 to 3 feet.
.monday...northwest winds 5 to 10 knots becoming south. waves
1 to 2 feet.
.tuesday...south winds 10 to 15 knots becoming west. waves 1 to
3 feet.
.wednesday...north winds 10 knots or less becoming east. waves
1 to 3 feet subsiding to 1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(4/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 4/17/2026 3:48 PM America/New_York.
Valid through 4/17/2026 10:30 PM America/New_York.
fzus61 kcle 171948
glfle
expires:202604180230;;539387
open lake forecast for lake erie
national weather service cleveland oh
348 pm edt fri apr 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 warm front will lift north across lake erie saturday morning
before low pressure 29.40 inches drags a cold front east through
the great lakes and ohio valley saturday evening. a trough
averaging 29.90 inches builds across the lake on sunday before
high pressure 30.40 inches moves overhead sunday night into
monday.
lez165>168-180230-
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-
348 pm edt fri apr 17 2026
.tonight...east winds 5 to 15 knots becoming southeast 15 to
20 knots. patchy dense fog. patchy fog late. waves 1 to 3 feet.
.saturday...south winds 15 to 20 knots becoming west. a chance of
showers with a slight chance of thunderstorms in the morning,
then showers with a chance of thunderstorms in the afternoon.
waves 2 to 4 feet building to 3 to 5 feet.
.saturday night...west winds 15 to 20 knots. a chance of showers.
waves 2 to 4 feet.
.sunday...west winds 15 to 20 knots. a chance of rain showers in
the afternoon. waves 2 to 4 feet.
.sunday night...west winds 15 to 20 knots becoming north 10 to
15 knots. a chance of rain showers in the evening. waves 2 to
4 feet.
.monday...northwest winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet.
.tuesday...south winds 15 to 20 knots becoming west 10 to
15 knots. waves 2 to 4 feet.
.wednesday...north winds 5 to 15 knots becoming east. waves 2 to
4 feet subsiding to 1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(5/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 4/17/2026 3:48 PM America/New_York.
Valid through 4/17/2026 10:30 PM America/New_York.
fzus61 kcle 171948
glfle
expires:202604180230;;539386
open lake forecast for lake erie
national weather service cleveland oh
348 pm edt fri apr 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 warm front will lift north across lake erie saturday morning
before low pressure 29.40 inches drags a cold front east through
the great lakes and ohio valley saturday evening. a trough
averaging 29.90 inches builds across the lake on sunday before
high pressure 30.40 inches moves overhead sunday night into
monday.
lez162>164-180230-
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-
348 pm edt fri apr 17 2026
.tonight...east winds 10 to 15 knots becoming south 15 to
20 knots. patchy fog late this evening. a chance of showers and
thunderstorms late. waves 1 to 3 feet.
.saturday...south winds 15 to 20 knots becoming west. showers
with a chance of thunderstorms in the morning, then showers
likely with a slight chance of thunderstorms early in the
afternoon. a chance of showers with a slight chance of
thunderstorms late. waves 1 to 3 feet building to 2 to 4 feet.
.saturday night...west winds 15 to 20 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet.
.sunday...west winds 15 to 20 knots. waves 1 to 3 feet.
.sunday night...northwest winds 15 to 20 knots becoming north
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet.
.monday...northwest winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet.
.tuesday...south winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 1 to 3 feet.
.wednesday...northeast winds 5 to 15 knots becoming east. waves
2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(6/9)
Latest Great Lakes Marine Forecast by KCLE
Issued 4/17/2026 11:28 AM America/New_York.
Valid through 4/17/2026 4:15 PM America/New_York.
fzus61 kcle 171528
glfle
expires:202604172015;;527006
open lake forecast for lake erie
national weather service cleveland oh
1128 am edt fri apr 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...
high pressure 30.00 inches will build in briefly today. early
saturday morning, a warm front will move north across the lake as
low pressure 29.70 inches moves through the great lakes region and
will drag a cold front through that evening. a trough averaging
29.90 inches will linger over lake erie on sunday and high
pressure 30.30 inches will build in sunday evening.
lez061-165>169-172015-
ripley to buffalo ny extending from 5nm 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-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-
1128 am edt fri apr 17 2026
.rest of today...light and variable winds. widespread dense fog
late this morning, then areas of dense fog early this afternoon.
waves 1 foot or less.
.tonight...east winds 5 to 15 knots becoming southeast 15 to
20 knots. a slight chance of showers and thunderstorms late.
waves 1 to 3 feet.
.saturday...south winds 15 to 20 knots becoming southwest.
showers with a chance of thunderstorms. waves 1 to 3 feet
building to 2 to 4 feet.
.saturday night...west winds 15 to 20 knots becoming northwest.
rain showers in the evening, then a chance of rain showers
overnight. waves 2 to 4 feet.
.sunday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of rain showers during the day. waves 3 to
5 feet.
.monday...northwest winds 5 to 15 knots becoming south 15 to
20 knots. waves 2 to 4 feet subsiding to 1 to 3 feet.
.tuesday...south winds 15 to 20 knots becoming southwest. waves
3 to 5 feet.
winds and waves higher in and near thunderstorms.
$$
(7/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 4/17/2026 3:46 PM America/New_York.
Valid through 4/18/2026 12:00 AM America/New_York.
fzus63 kdtx 171946
glfsc
expires:202604180400;;539322
lake st clair forecast
national weather service detroit/pontiac mi
346 pm edt fri apr 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...some areas of fog this evening into early tonight
mainly over the northern half of lake huron. low pressure, 29.30
inches, lifting into northern ontario drags a respectable cold
front through the central great lakes saturday supporting another
round of showers and storms. colder air filters into the region
the rest of the weekend maintaining moderate to strong
northwesterly winds.
lcz460-180400-
lake st clair-
346 pm edt fri apr 17 2026
.tonight...southeast winds 10 to 15 knots becoming south 15 to 20
knots early in the morning. partly cloudy ...then mostly cloudy with
light showers likely and a chance of thunderstorms early in the
morning. waves 1 to 3 feet.
.saturday...south winds 15 to 20 knots veering to the west in the
afternoon. light showers and a chance of thunderstorms in the
morning...then light showers likely in the afternoon. waves 1 to 3
feet.
.saturday night...west winds 10 to 15 knots. partly cloudy. waves 1
to 3 feet.
.sunday...west winds 10 to 15 knots increasing to 15 to 20 knots in
the late morning and afternoon. partly sunny. a chance of light
showers early in the afternoon. waves 1 to 3 feet.
.sunday night...northwest winds 15 to 20 knots diminishing to 5 to
10 knots. partly cloudy. a chance of light showers early in the
evening. waves 2 feet or less.
.monday...north winds 5 to 10 knots veering to the southeast in the
evening. mostly clear. waves 2 feet or less.
.tuesday...west winds 15 to 20 knots. partly cloudy. waves 1 to 3
feet.
.wednesday...east winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
$$
(8/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 4/17/2026 9:57 AM America/New_York.
Valid through 4/17/2026 6:00 PM America/New_York.
fzus63 kdtx 171357
glflh
expires:202604172200;;523602
open lake forecast for lake huron
national weather service detroit/pontiac mi
957 am edt fri apr 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...patchy fog lingers through the morning with high
pressure, 30.00 inches, crossing the region. a powerful cold front
arrives on saturday, bringing another round of showers and storms
in addition to stronger winds for the weekend.
lhz361-362-172200-
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-
957 am edt fri apr 17 2026
.rest of today...east winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. areas of fog late in the morning.
waves 1 to 3 feet building to 3 to 5 feet late in the afternoon.
.tonight...east winds 15 to 20 knots becoming southeast 20 to
25 knots with gusts to around 30 knots after midnight. a chance
of showers and thunderstorms after midnight. waves 5 to 7 feet
building to 8 to 12 feet early in the morning. waves occasionally
around 15 feet.
.saturday...south winds 20 to 25 knots with gusts to around
30 knots becoming west 15 to 20 knots early in the afternoon.
showers likely and a chance of thunderstorms in the morning.
waves 8 to 12 feet. waves occasionally around 15 feet.
.saturday night...west winds 15 to 20 knots. waves 6 to 9 feet.
waves occasionally around 12 feet.
.sunday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots late in the evening. waves
8 to 12 feet. waves occasionally around 15 feet.
.monday...northwest winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and early afternoon...then becoming
southwest 10 to 15 knots early in the evening becoming south
15 to 20 knots by midnight. waves 5 to 7 feet subsiding to 3 to
5 feet in the late morning and early afternoon...then subsiding
to 1 to 3 feet early in the evening building to 5 to 7 feet by
midnight. waves occasionally around 10 feet.
.tuesday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 15 to 20 knots early in the evening...
then becoming west 10 to 15 knots by midnight. waves 8 to 12 feet
subsiding to 4 to 6 feet by midnight. waves occasionally around
15 feet.
$$
(9/9)
Latest Great Lakes Marine Forecast by KDTX
Issued 4/17/2026 9:57 AM America/New_York.
Valid through 4/17/2026 6:00 PM America/New_York.
fzus63 kdtx 171357
glflh
expires:202604172200;;523603
open lake forecast for lake huron
national weather service detroit/pontiac mi
957 am edt fri apr 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...patchy fog lingers through the morning with high
pressure, 30.00 inches, crossing the region. a powerful cold front
arrives on saturday, bringing another round of showers and storms
in addition to stronger winds for the weekend.
lhz363-462>464-172200-
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-
957 am edt fri apr 17 2026
.rest of today...light and variable winds becoming east 5 to
10 knots in the afternoon. areas of fog late in the morning.
waves 2 feet or less.
.tonight...east winds 10 to 15 knots becoming southeast 20 to
25 knots with gusts to around 30 knots. a chance of showers after
midnight. waves 1 to 3 feet building to 6 to 9 feet. waves
occasionally around 12 feet.
.saturday...south winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
early afternoon...then veering to the west early in the
afternoon. showers likely in the morning...then a chance of
showers in the afternoon. waves 6 to 9 feet. waves occasionally
around 12 feet.
.saturday night...west winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. a chance of showers
in the evening. waves 5 to 7 feet. waves occasionally around
10 feet.
.sunday...northwest winds 15 to 20 knots. waves 5 to 7 feet
building to 8 to 12 feet late in the afternoon. waves
occasionally around 15 feet.
.monday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then veering
to the north early in the evening becoming south 15 to 20 knots
by midnight. waves 4 to 6 feet subsiding to 2 to 4 feet early in
the evening...then building to 4 to 6 feet by midnight. waves
occasionally around 8 feet.
.tuesday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 10 to 15 knots. waves 5 to 7 feet.
waves occasionally around 10 feet.
$$
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