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(1/6)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/20/2026 3:40 AM America/New_York.
Valid through 10/20/2026 10:15 AM America/New_York.
fzus61 kcle 200740
glfle
expires:202610201415;;873724
open lake forecast for lake erie
national weather service cleveland oh
340 am edt tue oct 20 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 30.40 inches remains in control this week. the high
will briefly weaken to 30.20 inches wednesday and thursday.
lez162-163-201415-
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-
340 am edt tue oct 20 2026
.today...northeast winds 10 knots or less becoming east. waves
1 foot or less.
.tonight...east winds 5 to 15 knots. waves 1 to 3 feet.
.wednesday...northeast winds less than 10 knots. waves 1 to
3 feet subsiding to 1 foot or less.
.wednesday night...light and variable winds. waves 1 foot or
less.
.thursday...north winds 10 knots or less becoming northeast and
increasing to 15 to 20 knots. waves 2 feet or less.
.friday...northeast winds 10 to 15 knots becoming southeast.
waves 2 feet or less.
.saturday...southeast winds 10 knots or less becoming south.
waves 2 feet or less.
$$
(2/6)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/20/2026 3:40 AM America/New_York.
Valid through 10/20/2026 10:15 AM America/New_York.
fzus61 kcle 200740
glfle
expires:202610201415;;873725
open lake forecast for lake erie
national weather service cleveland oh
340 am edt tue oct 20 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
high pressure 30.40 inches remains in control this week. the high
will briefly weaken to 30.20 inches wednesday and thursday.
lez164>168-201415-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
340 am edt tue oct 20 2026
.today...northeast winds 5 to 15 knots. waves 1 to 3 feet.
.tonight...northeast winds 15 to 20 knots becoming east 10 to
15 knots. waves 2 to 4 feet.
.wednesday...east winds 10 knots or less becoming northeast.
waves 1 to 3 feet.
.wednesday night...northeast winds 10 knots or less becoming
north. waves 1 foot or less.
.thursday...north winds 5 to 10 knots becoming northeast and
increasing to 15 to 20 knots. waves 1 foot or less building to
1 to 3 feet.
.friday...east winds 5 to 15 knots becoming southeast. waves 1 to
3 feet.
.saturday...southeast winds 10 knots or less becoming south 10 to
15 knots. waves 2 feet or less.
$$
(3/6)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/20/2026 3:33 AM America/New_York.
Valid through 10/20/2026 11:45 AM America/New_York.
fzus63 kdtx 200733
glfsc
expires:202610201545;;873479
lake st clair forecast
national weather service detroit/pontiac mi
333 am edt tue oct 20 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...high pressure, 30.50 inches, drifts from the northern
great lakes to southern quebec over the next 24 hours. a dry cold
front washes out over the area wednesday night, then another area
of high pressure then stalls overhead through the end of the
week.
lcz460-201545-
lake st clair-
333 am edt tue oct 20 2026
.today...northeast winds 5 to 10 knots in the morning becoming light
and variable. mostly sunny. waves 2 feet or less.
.tonight...light and variable winds becoming east 5 to 10 knots in
the late evening and overnight. mostly clear. waves 2 feet or less.
.wednesday...northeast winds 5 to 10 knots until late afternoon
becoming light and variable. sunny. waves 2 feet or less.
.wednesday night...light and variable winds. clear. waves nearly
calm.
.thursday...north winds 5 to 10 knots becoming northeast 15 to 20
knots. clear. waves 2 feet or less.
.friday...east winds 10 to 15 knots. clear. waves 2 feet or less.
.saturday...southeast winds 5 to 10 knots. mostly clear. waves 2
feet or less.
$$
(4/6)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/20/2026 3:32 AM America/New_York.
Valid through 10/20/2026 11:45 AM America/New_York.
fzus63 kdtx 200732
glflh
expires:202610201545;;873466
open lake forecast for lake huron
national weather service detroit/pontiac mi
332 am edt tue oct 20 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...high pressure, 30.50 inches, drifts from the northern
great lakes to southern quebec over the next 24 hours. a dry cold
front washes out over the area wednesday night, then another area
of high pressure then stalls overhead through the end of the
week.
lhz363-462>464-201545-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
332 am edt tue oct 20 2026
.today...east winds 10 to 15 knots decreasing to 5 to 10 knots in
the afternoon. waves 1 to 3 feet.
.tonight...northeast winds 5 to 10 knots becoming southeast 10 to
15 knots after midnight. waves 1 to 3 feet.
.wednesday...southeast winds 10 to 15 knots becoming south 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet.
.wednesday night...southeast winds 5 to 10 knots veering to the
southwest by midnight...then veering to the northwest after
midnight. waves 2 feet or less.
.thursday...north winds 10 to 15 knots veering to the northeast
late in the evening. waves 1 to 3 feet.
.friday...east winds 5 to 10 knots. waves 2 feet or less.
.saturday...southeast winds 5 to 10 knots becoming south 10 to
15 knots . waves 1 to 3 feet building to 2 to 4 feet by midnight.
$$
(5/6)
Latest Great Lakes Marine Forecast by KMKX
Issued 10/20/2026 3:11 AM US/Central.
Valid through 10/20/2026 10:30 AM US/Central.
fzus63 kmkx 200811
glflm
expires:202610201530;;875444
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
311 am cdt tue oct 20 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...
high pressure of 30.5 centered over the upper great lakes region
will slowly drift east through wednesday with amother high
pressure of 30.4 moving in from the great plains and replacing it
later this week. winds will remain light through to moderate
through the week. east winds will prevail today, southerly winds
on wednesday, and light and variable winds on thursday. breezy
southerlies may finally return saturday as low pressure moves
through the central plains of canada toward hudson bay.
lmz261-362-364-366-563-565-567-868-201530-
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-
311 am cdt tue oct 20 2026
sheboygan wi to pentwater mi north...
.today...east winds 10 to 20 kt becoming southeast. waves 1 to
3 ft.
.tonight...southeast winds 10 to 20 kt becoming south. waves 1 to
3 ft.
.wednesday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft.
.wednesday night...southwest winds 10 to 15 kt veering to north.
waves 1 to 2 ft.
.thursday...northeast winds 5 to 10 kt. waves 1 ft or less.
.thursday night...east winds 5 to 10 kt becoming southeast. waves
1 to 3 ft.
.friday...southeast winds 10 to 20 kt becoming south. waves 2 to
4 ft.
.saturday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft.
$$
(6/6)
Latest Great Lakes Marine Forecast by KMKX
Issued 10/20/2026 3:11 AM US/Central.
Valid through 10/20/2026 10:30 AM US/Central.
fzus63 kmkx 200811
glflm
expires:202610201530;;875445
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
311 am cdt tue oct 20 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...
high pressure of 30.5 centered over the upper great lakes region
will slowly drift east through wednesday with amother high
pressure of 30.4 moving in from the great plains and replacing it
later this week. winds will remain light through to moderate
through the week. east winds will prevail today, southerly winds
on wednesday, and light and variable winds on thursday. breezy
southerlies may finally return saturday as low pressure moves
through the central plains of canada toward hudson bay.
lmz080-669-671-673-675-777-779-870-872-874-876-878-201530-
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-
311 am cdt tue oct 20 2026
sheboygan wi to pentwater mi south...
.today...east winds 5 to 10 kt. patchy dense fog this morning.
waves 1 ft or less.
.tonight...east winds 5 to 10 kt becoming south. waves 1 to 2 ft.
.wednesday...south winds 5 to 10 kt. waves 1 to 2 ft.
.wednesday night...south winds 5 to 10 kt veering to west. waves
1 ft or less.
.thursday...northeast winds 5 to 10 kt. waves 1 ft or less.
.thursday night...northeast winds 5 to 10 kt becoming southeast.
waves 1 to 2 ft building to 1 to 3 ft.
.friday...southeast winds 10 to 20 kt. waves 2 to 4 ft.
.saturday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft.
$$
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