(1/7)
Latest Great Lakes Marine Forecast by KCLE
Issued 8/27/2026 3:55 PM America/New_York.
Valid through 8/27/2026 10:15 PM America/New_York.
fzus61 kcle 271955
glfle
expires:202608280215;;461095
open lake forecast for lake erie
national weather service cleveland oh
355 pm edt thu aug 27 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 trough of 29.90 inches will move south of lake erie tonight
pulling a cold front across the lake. high pressure of 30.10
inches builds into the great lakes friday before settling to the
mid-atlantic region sunday. a warm front moves north across lake
erie sunday night. low pressure of 29.70 inches will approach the
upper great lakes on tuesday.
lez164>166-280215-
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-
355 pm edt thu aug 27 2026
.tonight...west winds 5 to 10 knots becoming northeast. a chance
of waterspouts from late evening on. a slight chance of showers
and thunderstorms. a slight chance of showers late. waves 1 foot
or less.
.friday...northeast winds 5 to 10 knots. a chance of waterspouts
early. waves 1 to 2 feet.
.friday night...east winds 5 to 10 knots becoming southeast.
waves 1 foot or less.
.saturday...south winds 10 knots or less becoming southeast.
waves 1 foot or less.
.saturday night...east winds 10 knots or less becoming south.
waves 1 foot or less.
.sunday...southwest winds 5 to 15 knots. waves 1 to 2 feet.
.monday...southwest winds 10 to 15 knots. waves 1 to 3 feet.
.tuesday...southwest winds 10 to 15 knots. a chance of showers
and thunderstorms tuesday night. waves 1 to 3 feet.
winds and waves higher in and near thunderstorms.
$$
(2/7)
Latest Great Lakes Marine Forecast by KCLE
Issued 8/27/2026 3:55 PM America/New_York.
Valid through 8/27/2026 10:15 PM America/New_York.
fzus61 kcle 271955
glfle
expires:202608280215;;461094
open lake forecast for lake erie
national weather service cleveland oh
355 pm edt thu aug 27 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
a trough of 29.90 inches will move south of lake erie tonight
pulling a cold front across the lake. high pressure of 30.10
inches builds into the great lakes friday before settling to the
mid-atlantic region sunday. a warm front moves north across lake
erie sunday night. low pressure of 29.70 inches will approach the
upper great lakes on tuesday.
lez162-163-280215-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
355 pm edt thu aug 27 2026
.tonight...west winds 10 knots or less becoming northeast. a
chance of waterspouts late. waves 1 foot or less.
.friday...northeast winds 10 knots or less becoming east. a
chance of waterspouts early. waves 2 feet or less.
.friday night...southeast winds 5 to 10 knots becoming south.
waves 1 foot or less.
.saturday...south winds 10 knots or less becoming southeast.
waves 1 foot or less.
.saturday night...southeast winds 5 to 10 knots becoming south.
waves 1 foot or less.
.sunday...southwest winds 5 to 10 knots. waves 1 foot or less.
.monday...southwest winds around 10 knots. waves 1 foot or less.
.tuesday...southwest winds around 10 knots. a chance of showers
and thunderstorms tuesday night. waves around 1 foot.
winds and waves higher in and near thunderstorms.
$$
(3/7)
Latest Great Lakes Marine Forecast by KDTX
Issued 8/27/2026 3:42 PM America/New_York.
Valid through 8/27/2026 11:45 PM America/New_York.
fzus63 kdtx 271942
glflh
expires:202608280345;;460840
open lake forecast for lake huron
national weather service detroit/pontiac mi
342 pm edt thu aug 27 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...moderate north-northwest winds in place through
daytime thursday before weakening overnight. high pressure, 30.20
inches, then crosses the central great lakes to close out the
week.
lhz463-464-280345-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
342 pm edt thu aug 27 2026
.tonight...north winds 5 to 10 knots increasing to 10 to 15 knots
by midnight...then decreasing to 5 to 10 knots early in the
morning. waves 1 to 3 feet.
.friday...north winds 5 to 10 knots. waves 1 to 3 feet.
.friday night...north winds 5 to 10 knots veering to the south
after midnight. waves 2 feet or less.
.saturday...south winds 10 to 15 knots decreasing to 5 to
10 knots early in the afternoon. waves 2 feet or less.
.saturday night...south winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 2 feet or less.
.sunday...southwest winds 5 to 10 knots backing to the south late
in the afternoon. showers likely and a chance of thunderstorms
late in the afternoon. waves 1 to 3 feet.
.monday...south winds 5 to 10 knots increasing to 10 to 15 knots
by midnight. showers likely and a chance of thunderstorms early
in the morning...then a chance of showers. waves 2 feet or less.
.tuesday...southwest winds 5 to 10 knots. a chance of showers.
waves 2 feet or less.
$$
(4/7)
Latest Great Lakes Marine Forecast by KDTX
Issued 8/27/2026 3:42 PM America/New_York.
Valid through 8/27/2026 11:45 PM America/New_York.
fzus63 kdtx 271942
glfsc
expires:202608280345;;460842
lake st clair forecast
national weather service detroit/pontiac mi
342 pm edt thu aug 27 2026
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...moderate north-northwest winds in place through
daytime thursday before weakening overnight. high pressure, 30.20
inches, then crosses the central great lakes to close out the
week.
lcz460-280345-
lake st clair-
342 pm edt thu aug 27 2026
.tonight...north winds 5 to 10 knots becoming northeast 10 to 15
knots after midnight. mostly clear. waves 2 feet or less.
.friday...north winds 5 to 10 knots until late afternoon becoming
light and variable. mostly sunny. waves 2 feet or less.
.friday night...east winds 5 to 10 knots veering to the south after
midnight. clear. waves 2 feet or less.
.saturday...southwest winds 5 to 10 knots becoming south 10 to 15
knots early in the afternoon. mostly sunny. waves 2 feet or less.
.saturday night...south winds 10 to 15 knots diminishing to 5 to 10
knots after midnight. partly cloudy. waves 2 feet or less.
.sunday...southwest winds 5 to 10 knots becoming south 10 to 15
knots in the afternoon and evening. partly sunny...then partly
cloudy with a chance of showers in the evening. waves 2 feet or
less.
.monday...southwest winds 10 to 15 knots. mostly cloudy with a
chance of showers. waves 2 feet or less.
.tuesday...southwest winds 5 to 10 knots. partly cloudy. a chance of
showers. waves 2 feet or less.
$$
(5/7)
Latest Great Lakes Marine Forecast by KDTX
Issued 8/27/2026 9:33 AM America/New_York.
Valid through 8/27/2026 5:45 PM America/New_York.
fzus63 kdtx 271333
glflh
expires:202608272145;;446546
open lake forecast for lake huron
national weather service detroit/pontiac mi
933 am edt thu aug 27 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...moderate northwest winds in place through daytime
thursday following the passage of a cold front. high pressure,
30.20 inches, then expands over the central great lakes to close
out the week.
lhz462>464-272145-
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-
933 am edt thu aug 27 2026
.rest of today...west winds 10 to 15 knots becoming northwest
5 to 10 knots in the afternoon. waves 1 to 3 feet.
.tonight...north winds 5 to 10 knots increasing to 10 to 15 knots
by midnight...then decreasing to 5 to 10 knots early in the
morning. waves 1 to 3 feet.
.friday...north winds 5 to 10 knots. waves 1 to 3 feet.
.friday night...north winds 5 to 10 knots veering to the east by
midnight...then veering to the south after midnight. waves 2 feet
or less.
.saturday...south winds 5 to 10 knots increasing to 10 to
15 knots late in the evening. waves 2 feet or less.
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
by midnight. a chance of showers. a chance of thunderstorms. rain
showers likely by midnight. waves 1 to 3 feet.
.monday...south winds 5 to 10 knots. showers likely and a chance
of thunderstorms early in the morning...then a chance of showers.
waves 2 feet or less.
$$
(6/7)
Latest Great Lakes Marine Forecast by KMKX
Issued 8/27/2026 2:48 PM US/Central.
Valid through 8/27/2026 10:15 PM US/Central.
fzus63 kmkx 271948
glflm
expires:202608280315;;461004
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
248 pm cdt thu aug 27 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...
modest northerly winds continue this afternoon as a low
pressure trough of 29.9 inches exits eastward from lower
michigan. winds then become light and variable tonight and
friday as high pressure of 30.2 inches moves from the northern
great lakes to the lower great lakes.
high pressure then pulls east saturday and low pressure of 29.7
inches will slowly approach from the great plains. breezy
southerly winds are expected this weekend into early next week,
but gusts are expected to remain below gale force.
lmz080-669-671-673-675-777-779-870-872-874-876-878-280315-
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-
248 pm cdt thu aug 27 2026
sheboygan wi to pentwater mi south...
.tonight...northeast winds 10 to 20 kt diminishing to 5 to 10 kt
late this evening, then becoming northeast 5 to 10 kt after
midnight becoming east late. waves 1 to 3 ft subsiding to 1 to
2 ft.
.friday...southeast winds 5 to 10 kt becoming south 10 to 20 kt.
waves 1 to 3 ft.
.friday night...south winds 10 to 20 kt becoming southwest. waves
2 to 4 ft.
.saturday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 3 to 5 ft.
.saturday night...south winds 15 to 25 kt. chance of showers.
waves 4 to 6 ft occasionally to 8 ft.
.sunday...south winds to 30 kt. chance of showers. waves 6 to
9 ft occasionally to 12 ft.
.sunday night...south winds to 30 kt diminishing to 10 to 20 kt.
chance of showers and thunderstorms. waves 5 to 8 ft occasionally
to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.monday...southwest winds 15 to 25 kt becoming south. chance of
showers. waves 4 to 6 ft occasionally to 8 ft.
.tuesday...southwest winds 10 to 20 kt becoming south. chance of
showers. waves 2 to 4 ft.
$$
(7/7)
Latest Great Lakes Marine Forecast by KMKX
Issued 8/27/2026 2:48 PM US/Central.
Valid through 8/27/2026 10:15 PM US/Central.
fzus63 kmkx 271948
glflm
expires:202608280315;;461003
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
248 pm cdt thu aug 27 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...
modest northerly winds continue this afternoon as a low
pressure trough of 29.9 inches exits eastward from lower
michigan. winds then become light and variable tonight and
friday as high pressure of 30.2 inches moves from the northern
great lakes to the lower great lakes.
high pressure then pulls east saturday and low pressure of 29.7
inches will slowly approach from the great plains. breezy
southerly winds are expected this weekend into early next week,
but gusts are expected to remain below gale force.
lmz261-362-364-366-563-565-567-868-280315-
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-
248 pm cdt thu aug 27 2026
sheboygan wi to pentwater mi north...
.tonight...northeast winds 10 to 20 kt diminishing to 5 to 10 kt.
waves 1 to 3 ft subsiding to 1 to 2 ft.
.friday...northeast winds 5 to 10 kt veering to south. waves 1 to
3 ft.
.friday night...southeast winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 3 ft.
.saturday...southwest winds 15 to 25 kt increasing to 30 kt.
waves 3 to 5 ft.
.saturday night...southwest winds 15 to 25 kt. chance of showers
overnight. waves 4 to 6 ft occasionally to 8 ft.
.sunday...south winds to 30 kt. chance of showers in the morning,
then showers likely with a chance of thunderstorms in the
afternoon. waves 6 to 9 ft occasionally to 12 ft.
.sunday night...south winds to 30 kt diminishing to 10 to 20 kt.
chance of showers. waves 5 to 8 ft occasionally to 10 ft
subsiding to 4 to 6 ft occasionally to 8 ft.
.monday...south winds 15 to 25 kt. chance of showers. waves 4 to
6 ft occasionally to 8 ft.
.tuesday...west winds 10 to 20 kt becoming southwest. waves 1 to
3 ft.
$$
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