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(1/5)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/21/2026 3:44 PM America/New_York.
Valid through 10/21/2026 10:15 PM America/New_York.
fzus61 kcle 211944
glfle
expires:202610220215;;955589
open lake forecast for lake erie
national weather service cleveland oh
344 pm edt wed oct 21 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 will maintain influence over lake erie for the next
several days. the high will be around 30.20 inches through
thursday, before re-intensfying to 30.40 inches over southern
ontario thursday night into friday.
lez162>164-220215-
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 pm edt wed oct 21 2026
.tonight...east winds less than 10 knots. waves 1 foot or less.
.thursday...northwest winds 10 knots or less. waves 1 foot or
less.
.thursday night...north winds 10 knots or less becoming
northeast. waves 1 to 3 feet.
.friday...northeast winds 10 knots or less becoming east. waves
1 to 3 feet.
.friday night...east winds 5 to 15 knots becoming southeast.
waves 1 to 3 feet.
.saturday...southeast winds 10 knots or less becoming south.
waves 1 foot or less.
.sunday...south winds 5 to 10 knots becoming southwest. waves
1 foot or less.
.monday...southwest winds 5 to 15 knots becoming northeast. waves
2 feet or less.
$$
(2/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/21/2026 3:49 PM America/New_York.
Valid through 10/22/2026 12:00 AM America/New_York.
fzus63 kdtx 211949
glfsc
expires:202610220400;;955733
lake st clair forecast
national weather service detroit/pontiac mi
349 pm edt wed oct 21 2026
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a weak and dry cold front will track through the
central great lakes tonight. another large high pressure, 30.40
inches, then builds over the area thursday and friday.
lcz460-220400-
lake st clair-
349 pm edt wed oct 21 2026
.tonight...light and variable winds. mostly clear. waves nearly
calm.
.thursday...north winds 5 to 10 knots in the morning becoming light
and variable...then becoming north 5 to 10 knots late in the
afternoon. mostly sunny. waves 2 feet or less.
.thursday night...northeast winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. partly cloudy. patchy fog after midnight.
waves 2 feet or less.
.friday...east winds 5 to 10 knots. mostly sunny. patchy fog early
in the morning. waves 2 feet or less.
.friday night...southeast winds 10 to 15 knots becoming east 5 to 10
knots in the late evening and overnight. clear. waves 2 feet or
less.
.saturday...southeast winds 5 to 10 knots. clear. waves 2 feet or
less.
.sunday...south winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.monday...northeast winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
$$
(3/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/21/2026 3:49 PM America/New_York.
Valid through 10/22/2026 12:00 AM America/New_York.
fzus63 kdtx 211949
glflh
expires:202610220400;;955730
open lake forecast for lake huron
national weather service detroit/pontiac mi
349 pm edt wed oct 21 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 weak and dry cold front will track through the
central great lakes tonight. another large high pressure, 30.40
inches, then builds over the area thursday and friday.
lhz363-462>464-220400-
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-
349 pm edt wed oct 21 2026
.tonight...southeast winds 5 to 10 knots early in the evening
becoming light and variable...then becoming northwest 5 to
10 knots early in the morning. waves 2 feet or less.
.thursday...north winds 5 to 10 knots. waves 2 feet or less.
.thursday night...northeast winds 5 to 10 knots veering to the
east after midnight. waves 1 to 3 feet.
.friday...southeast winds 5 to 10 knots. waves 2 feet or less.
.friday night...east winds 5 to 10 knots becoming southeast 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet.
.saturday...southeast winds 5 to 10 knots becoming south 10 to
15 knots late in the afternoon. waves 1 to 3 feet building to
2 to 4 feet late in the evening.
.sunday...south winds 10 to 15 knots. waves 2 to 4 feet subsiding
to 1 to 3 feet.
.monday...west winds 5 to 10 knots veering to the north in the
late morning and early afternoon...then increasing to 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet by midnight.
$$
(4/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 10/21/2026 1:42 PM US/Central.
Valid through 10/21/2026 10:15 PM US/Central.
fzus63 kmkx 211842
glflm
expires:202610220315;;953900
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
142 pm cdt wed oct 21 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...
a ridge of 30.3 inch high pressure is centered from the
mississippi river into ontario this afternoon, resulting in light
south to southwest winds across the open waters. winds will trend
out of the northeast tonight through thursday night as the surface
ridge nudges east toward the ohio river and quebec. areas of fog
are possible over the northern two-thirds of the lake late tonight
into thursday. whether any fog becomes dense remains uncertain,
with visibility and satellite trends being closely monitored
through this part of the period. persistent southerly winds will
become established friday through the weekend as a cold front
moves through the northern great plains and 30.5 inch high
pressure settles into the northeastern united states. winds could
be breezy at times, though widespread gales are not anticipated at
this time. will continue to monitor for possible increases
through the second half of the week. aforementioned cold front
will cross the waters sunday night, bringing a northerly wind
shift through the first half of next week. rain showers are
possible along the passing front.
lmz261-362-364-366-563-565-567-868-220315-
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-
142 pm cdt wed oct 21 2026
sheboygan wi to pentwater mi north...
.tonight...southwest winds 5 to 10 kt veering to north. patchy
fog overnight. waves 1 to 2 ft.
.thursday...northeast winds 5 to 10 kt. patchy fog. waves 1 ft or
less.
.thursday night...northeast winds 5 to 10 kt veering to southeast
10 to 15 kt. patchy fog. waves 1 to 2 ft.
.friday...south winds 10 to 20 kt. waves 2 to 4 ft.
.friday night...south winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft.
.saturday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft.
.saturday night...south winds to 30 kt. waves 5 to 8 ft
occasionally to 10 ft.
.sunday...southwest winds 15 to 25 kt becoming northwest 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft.
.monday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft.
$$
(5/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 10/21/2026 1:42 PM US/Central.
Valid through 10/21/2026 10:15 PM US/Central.
fzus63 kmkx 211842
glflm
expires:202610220315;;953901
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
142 pm cdt wed oct 21 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...
a ridge of 30.3 inch high pressure is centered from the
mississippi river into ontario this afternoon, resulting in light
south to southwest winds across the open waters. winds will trend
out of the northeast tonight through thursday night as the surface
ridge nudges east toward the ohio river and quebec. areas of fog
are possible over the northern two-thirds of the lake late tonight
into thursday. whether any fog becomes dense remains uncertain,
with visibility and satellite trends being closely monitored
through this part of the period. persistent southerly winds will
become established friday through the weekend as a cold front
moves through the northern great plains and 30.5 inch high
pressure settles into the northeastern united states. winds could
be breezy at times, though widespread gales are not anticipated at
this time. will continue to monitor for possible increases
through the second half of the week. aforementioned cold front
will cross the waters sunday night, bringing a northerly wind
shift through the first half of next week. rain showers are
possible along the passing front.
lmz080-669-671-673-675-777-779-870-872-874-876-878-220315-
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-
142 pm cdt wed oct 21 2026
sheboygan wi to pentwater mi south...
.tonight...south winds 5 to 10 kt veering to west. patchy fog
overnight. waves 1 ft or less.
.thursday...northeast winds 5 to 10 kt. patchy fog. waves 1 ft or
less.
.thursday night...northeast winds 5 to 10 kt veering to
southeast. waves 1 ft or less building to 1 to 3 ft.
.friday...southeast winds 10 to 20 kt. waves 2 to 4 ft.
.friday night...southeast winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 3 ft building to 2 to 4 ft.
.saturday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft.
.saturday night...south winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.sunday...southwest winds 10 to 20 kt. waves 3 to 5 ft.
.monday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
waves 2 to 4 ft.
$$
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