(1/5)
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;;527005
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.
lez162>164-172015-
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-
1128 am edt fri apr 17 2026
.rest of today...east winds 10 knots or less. widespread dense
fog late this morning, then patchy fog early this afternoon.
waves 1 foot or less.
.tonight...east winds 5 to 15 knots becoming south 15 to
20 knots. a slight chance of showers and thunderstorms after
midnight. showers likely with a chance of thunderstorms late.
waves 2 feet or less.
.saturday...south winds 15 to 20 knots becoming west. showers
with a chance of thunderstorms in the morning, then showers in
the afternoon. waves 1 to 3 feet.
.saturday night...west winds 15 to 20 knots becoming northwest. a
chance of showers. waves 2 to 4 feet.
.sunday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. 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 southwest. waves
2 to 4 feet subsiding to 1 to 3 feet.
winds and waves higher in and near thunderstorms.
$$
(2/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 4/17/2026 9:58 AM America/New_York.
Valid through 4/17/2026 6:00 PM America/New_York.
fzus63 kdtx 171358
glfsc
expires:202604172200;;523608
lake st clair forecast
national weather service detroit/pontiac mi
958 am edt fri apr 17 2026
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...patchy fog lingers through the morning with high
pressure, 30.00 inches, crossing the region. a powerful cold front
arrives on saturday, bringing another round of showers and storms
in addition to stronger winds for the weekend.
lcz460-172200-
lake st clair-
958 am edt fri apr 17 2026
.rest of today...light and variable winds becoming southeast 5 to 10
knots late in the afternoon. partly sunny. areas of fog late in the
morning. waves 2 feet or less.
.tonight...southeast winds 10 to 15 knots becoming south 15 to 20
knots early in the morning. partly cloudy ...then showers and a
chance of thunderstorms early in the morning. waves 1 to 3 feet.
.saturday...south winds 15 to 20 knots veering to the west early in
the afternoon. a chance of thunderstorms early in the morning. rain
showers until late afternoon...then a chance of light showers early
in the afternoon. waves 1 to 3 feet.
.saturday night...west winds 15 to 20 knots diminishing to 10 to 15
knots after midnight. mostly cloudy early in the evening becoming
partly cloudy. a chance of light showers . waves 1 to 3 feet.
.sunday...northwest winds 15 to 20 knots. mostly sunny in the
morning...then partly cloudy with a chance of light showers in the
afternoon and evening. waves 1 to 3 feet.
.monday...southeast winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.tuesday...southwest winds 15 to 20 knots. partly cloudy. waves 1 to
3 feet.
$$
(3/5)
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.
$$
(4/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 4/17/2026 9:02 AM US/Central.
Valid through 4/17/2026 4:30 PM US/Central.
fzus63 kmkx 171402
glflm
expires:202604172130;;523786
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt fri apr 17 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...
winds will become southerly this morning as a surface low of 29.5
inches approaches from the central plains. dense fog will
continue over the lake through this time. this surface low will
quickly move from omaha to duluth from this morning into the
afternoon. winds will become gusty and southeasterly tonight, and
strong to severe storms will cross the lake as a cold front sweeps
through the area. winds then become northwesterly behind the cold
front saturday morning. breezy northwesterly winds then continue
saturday through sunday as the low then races northeast toward
hudson bay. winds ease monday morning as high pressure tracks
southeast over the upper great lakes.
lmz261-362-364-366-563-565-567-868-172130-
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 point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
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-
902 am cdt fri apr 17 2026
sheboygan wi to pentwater mi north...
...dense fog advisory in effect until 7 pm cdt this evening...
.rest of today...southeast winds 10 to 15 kt increasing to 30 kt.
widespread dense fog. waves 1 to 2 ft building to 4 to 6 ft
occasionally to 8 ft.
.tonight...southeast winds to 30 kt veering to southwest 15 to
25 kt. patchy fog. rain showers with a chance of thunderstorms in
the evening, then chance of rain showers and thunderstorms
overnight. waves 5 to 8 ft occasionally to 10 ft.
.saturday...northwest winds to 30 kt becoming west 15 to 25 kt.
chance of rain showers in the morning. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft.
.saturday night...northwest winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft.
.sunday...northwest winds to 30 kt. waves 3 to 5 ft.
.sunday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 2 to 4 ft.
.monday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 2 ft building to 2 to 4 ft.
.tuesday...southwest winds to 30 kt diminishing to 15 to 25 kt.
waves 7 to 10 ft occasionally to 13 ft.
$$
(5/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 4/17/2026 9:02 AM US/Central.
Valid through 4/17/2026 4:30 PM US/Central.
fzus63 kmkx 171402
glflm
expires:202604172130;;523787
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt fri apr 17 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...
winds will become southerly this morning as a surface low of 29.5
inches approaches from the central plains. dense fog will
continue over the lake through this time. this surface low will
quickly move from omaha to duluth from this morning into the
afternoon. winds will become gusty and southeasterly tonight, and
strong to severe storms will cross the lake as a cold front sweeps
through the area. winds then become northwesterly behind the cold
front saturday morning. breezy northwesterly winds then continue
saturday through sunday as the low then races northeast toward
hudson bay. winds ease monday morning as high pressure tracks
southeast over the upper great lakes.
lmz080-669-671-673-675-777-779-870-872-874-876-878-172130-
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-
902 am cdt fri apr 17 2026
sheboygan wi to pentwater mi south...
...dense fog advisory in effect until 7 pm cdt this evening...
.rest of today...southeast winds 10 to 15 kt increasing to 30 kt.
widespread dense fog. waves 1 ft or less building to 4 to 6 ft
occasionally to 8 ft.
.tonight...south winds to 30 kt veering to southwest 15 to 25 kt.
patchy fog. rain showers with a chance of thunderstorms in the
evening, then chance of rain showers and thunderstorms overnight.
waves 4 to 7 ft occasionally to 9 ft.
.saturday...west winds to 30 kt diminishing to 10 to 20 kt.
chance of rain showers in the morning. waves 4 to 7 ft
occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.saturday night...west winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft.
.sunday...northwest winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft.
.sunday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft.
.monday...southeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 2 to 4 ft.
.tuesday...south winds to 30 kt diminishing to 15 to 25 kt. waves
6 to 9 ft occasionally to 12 ft.
$$
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