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(1/5)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/21/2026 9:59 AM America/New_York.
Valid through 10/21/2026 4:15 PM America/New_York.
fzus61 kcle 211359
glfle
expires:202610212015;;941728
open lake forecast for lake erie
national weather service cleveland oh
959 am 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 weaken to 30.20 inches today and
thursday, before re-intensfying to 30.40 inches over southern
ontario thursday night into friday.
lez162>164-212015-
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-
959 am edt wed oct 21 2026
.this afternoon...east winds less than 10 knots. waves 2 feet or
less.
.tonight...east winds less than 10 knots becoming northwest.
waves 1 foot or less.
.thursday...northwest winds 10 knots or less. waves 1 foot or
less.
.thursday night...north winds 5 to 15 knots becoming northeast.
waves 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.
waves 1 foot or less.
.sunday...south winds 5 to 10 knots becoming southwest. waves
1 foot or less.
$$
(2/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/21/2026 9:35 AM America/New_York.
Valid through 10/21/2026 5:45 PM America/New_York.
fzus63 kdtx 211335
glfsc
expires:202610212145;;941187
lake st clair forecast
national weather service detroit/pontiac mi
935 am edt wed oct 21 2026
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a weak and dry cold front will track through the
central great lakes tonight. another large high pressure, 30.40
inches, then builds over the area thursday and friday.
lcz460-212145-
lake st clair-
935 am edt wed oct 21 2026
.rest of today...east winds 5 to 10 knots late in the morning
becoming light and variable. sunny. waves 2 feet or less.
.tonight...light and variable winds. mostly clear. waves nearly
calm.
.thursday...north winds 5 to 10 knots. sunny. waves 2 feet or less.
.thursday night...northeast winds 10 to 15 knots. mostly clear.
waves 2 feet or less.
.friday...east winds 5 to 10 knots becoming southeast 10 to 15 knots
in the evening. mostly sunny in the morning becoming clear. waves 2
feet or less.
.saturday...southeast winds 5 to 10 knots. clear. waves 2 feet or
less.
.sunday...southwest winds 5 to 10 knots. partly cloudy. waves 2 feet
or less.
$$
(3/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 10/21/2026 9:35 AM America/New_York.
Valid through 10/21/2026 5:45 PM America/New_York.
fzus63 kdtx 211335
glflh
expires:202610212145;;941146
open lake forecast for lake huron
national weather service detroit/pontiac mi
935 am 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.
lhz462>464-212145-
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-
935 am edt wed oct 21 2026
.rest of today...southeast winds 5 to 10 knots. waves 2 feet or
less.
.tonight...light and variable winds becoming west 5 to 10 knots
early in the morning. waves 2 feet or less.
.thursday...north winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. waves 1 to 3 feet.
.thursday night...northeast winds 10 to 15 knots veering to the
east after midnight. waves 1 to 3 feet.
.friday...east winds 5 to 10 knots veering to the southeast late
in the morning...then increasing to 10 to 15 knots late in the
evening. waves 2 feet or less.
.saturday...southeast winds 5 to 10 knots becoming south 10 to
15 knots . waves 1 to 3 feet.
.sunday...south winds 10 to 15 knots. waves 1 to 3 feet.
$$
(4/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 10/21/2026 8:38 AM US/Central.
Valid through 10/21/2026 4:30 PM US/Central.
fzus63 kmkx 211338
glflm
expires:202610212130;;941267
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
838 am 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 morning, resulting in light
south to southwest winds across the open waters. winds will trend
light and variable tonight through thursday night as the surface
ridge nudges east toward the ohio river and quebec. 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, with widespread gales 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.
lmz261-362-364-366-563-565-567-868-212130-
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-
838 am cdt wed oct 21 2026
sheboygan wi to pentwater mi north...
.rest of today...southwest winds 10 to 20 kt. waves 1 to 3 ft.
.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...east winds 5 to 10 kt becoming southeast.
patchy fog in the evening, then patchy dense fog overnight. 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.
.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.
$$
(5/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 10/21/2026 8:38 AM US/Central.
Valid through 10/21/2026 4:30 PM US/Central.
fzus63 kmkx 211338
glflm
expires:202610212130;;941268
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
838 am 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 morning, resulting in light
south to southwest winds across the open waters. winds will trend
light and variable tonight through thursday night as the surface
ridge nudges east toward the ohio river and quebec. 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, with widespread gales 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.
lmz080-669-671-673-675-777-779-870-872-874-876-878-212130-
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-
838 am cdt wed oct 21 2026
sheboygan wi to pentwater mi south...
.rest of today...south winds 5 to 10 kt. waves 1 to 2 ft.
.tonight...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.
patchy fog in the evening, then patchy dense fog overnight. 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.
.sunday...southwest winds 10 to 20 kt. waves 3 to 5 ft.
$$
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