(1/5)
Latest Great Lakes Marine Forecast by KCLE
Issued 5/15/2026 3:56 AM America/New_York.
Valid through 5/15/2026 10:15 AM America/New_York.
fzus61 kcle 150756
glfle
expires:202605151415;;588827
open lake forecast for lake erie
national weather service cleveland oh
356 am edt fri may 15 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 of 30.10 inches overhead will build east tonight.
a warm front will lift north across the lake friday night into
saturday. a nearly stationary boundary of 30.00 inches will
settle near lake erie on sunday before lifting north as a warm
front sunday night. a surface ridge averaging 30.10 inches will
persist over the eastern great lakes on monday followed by low
pressure of 29.60 inches tracking east through the upper great
lakes into quebec on tuesday.
lez162>164-151415-
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-
356 am edt fri may 15 2026
.today...southwest winds 10 knots or less becoming south. waves
1 foot or less.
.tonight...south winds 5 to 15 knots. waves 2 feet or less.
.saturday...south winds 10 to 15 knots becoming southwest.
showers likely with a chance of thunderstorms in the morning,
then a chance of showers and thunderstorms in the afternoon.
waves 1 to 3 feet.
.saturday night...southwest winds 5 to 15 knots. a chance of
showers. waves 2 feet or less.
.sunday...south winds 5 to 15 knots. waves 2 feet or less.
.monday...south winds 10 to 15 knots. a chance of showers and
thunderstorms monday night. waves 1 to 2 feet.
.tuesday...southwest winds 15 to 20 knots. showers likely with a
chance of thunderstorms. waves 1 to 3 feet building to 2 to
4 feet, then subsiding to 1 to 3 feet.
winds and waves higher in and near thunderstorms.
$$
(2/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/15/2026 3:53 AM America/New_York.
Valid through 5/15/2026 12:00 PM America/New_York.
fzus63 kdtx 150753
glfsc
expires:202605151600;;588764
lake st clair forecast
national weather service detroit/pontiac mi
353 am edt fri may 15 2026
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...high pressure, 30.00 inches, exits the ohio valley
this morning resulting in light southwest flow that ramps up
through the afternoon. breezy winds develop by this evening ahead
of surface troughing that generates periods of showers and
thunderstorms this weekend into early next week.
lcz460-151600-
lake st clair-
353 am edt fri may 15 2026
.today...light and variable winds becoming south 10 to 15 knots.
partly sunny. waves 2 feet or less.
.tonight...south winds 10 to 15 knots. mostly clear. waves 2 feet or
less.
.saturday...southwest winds 10 to 15 knots. mostly cloudy. light
showers likely until late afternoon...then a chance of light showers
early in the afternoon. waves 2 feet or less.
.saturday night...southwest winds 10 to 15 knots diminishing to 5 to
10 knots by midnight...then veering to the northwest after midnight.
partly cloudy. a chance of light showers early in the evening. a
chance of light showers after midnight. waves 2 feet or less.
.sunday...northeast winds 5 to 10 knots veering to the southeast in
the afternoon...then increasing to 10 to 15 knots in the evening.
mostly cloudy in the morning becoming partly cloudy. waves 2 feet or
less.
.monday...southwest winds 15 to 20 knots. mostly clear. waves 1 to 3
feet.
.tuesday...southwest winds 20 to 25 knots with gusts to 30 knots.
partly cloudy. showers likely and a chance of thunderstorms. waves 2
to 4 feet. a small craft advisory may be needed.
$$
(3/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/15/2026 3:53 AM America/New_York.
Valid through 5/15/2026 12:00 PM America/New_York.
fzus63 kdtx 150753
glflh
expires:202605151600;;588762
open lake forecast for lake huron
national weather service detroit/pontiac mi
353 am edt fri may 15 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, 30.00 inches, exits the ohio valley
this morning resulting in light southwest flow that ramps up
through the afternoon. breezy winds develop by this evening ahead
of surface troughing that generates periods of showers and
thunderstorms this weekend into early next week.
lhz363-462>464-151600-
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-
353 am edt fri may 15 2026
.today...light and variable winds becoming south 10 to 15 knots.
waves 1 to 3 feet building to 2 to 4 feet late in the afternoon.
.tonight...south winds 10 to 15 knots increasing to 15 to
20 knots after midnight...then decreasing to 10 to 15 knots early
in the morning. waves 3 to 5 feet.
.saturday...south winds 10 to 15 knots. a chance of showers in
the morning. waves 3 to 5 feet.
.saturday night...north winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight.
.sunday...north winds 5 to 10 knots veering to the east late in
the morning...then increasing to 10 to 15 knots late in the
afternoon becoming southeast 15 to 20 knots late in the evening.
a chance of showers late in the afternoon. waves 1 to 3 feet
building to 2 to 4 feet late in the evening.
.monday...south winds 15 to 20 knots. a chance of showers. a
chance of thunderstorms. rain showers likely by midnight. waves
3 to 5 feet.
.tuesday...south winds 15 to 20 knots. showers likely early in
the morning. a chance of showers. waves 5 to 7 feet. waves
occasionally around 10 feet.
$$
(4/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 5/15/2026 3:09 AM US/Central.
Valid through 5/15/2026 10:15 AM US/Central.
fzus63 kmkx 150809
glflm
expires:202605151515;;589798
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 am cdt fri may 15 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...
southerly winds will increase through the rest of this morning
behind departing high pressure of 30.0 inches and low pressure of
29.0 inches moving from central manitoba into ontario. winds will
peak this afternoon into tonight, leading to a period of
southerly gales. a gale warning has been issued for the northern
third of the open waters.
southerly winds will persist on saturday, while becoming lighter
saturday morning into saturday afternoon as the low over canada
pulls away to the northeast. southerly winds will then pick back
up sunday afternoon into monday ahead of approaching low pressure.
gales are possible monday and moreso on tuesday. multiple rounds
of showers and storms will be possible this weekend into early
next week.
lmz366-565-567-868-151515-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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-
309 am cdt fri may 15 2026
sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...
.today...south winds 15 to 25 kt increasing to 30 kt. waves 3 to
5 ft building to 7 to 10 ft occasionally to 13 ft.
.tonight...south winds to 30 kt diminishing to 15 to 25 kt.
chance of showers and slight chance of thunderstorms overnight.
waves 7 to 10 ft occasionally to 13 ft subsiding to 6 to 9 ft
occasionally to 12 ft.
.saturday...south winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.saturday night...south winds 10 to 15 kt backing to east. waves
1 to 3 ft.
.sunday...east winds 10 to 20 kt becoming southeast. chance of
rain showers. waves 2 to 4 ft building to 4 to 6 ft occasionally
to 8 ft.
.sunday night...southeast winds 15 to 25 kt becoming south.
chance of showers. waves 5 to 8 ft occasionally to 10 ft.
.monday...south winds to 30 kt. chance of showers. waves 6 to
9 ft occasionally to 12 ft.
.tuesday...south winds to 30 kt becoming southwest. chance of
showers. waves 7 to 10 ft occasionally to 13 ft.
$$
(5/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 5/15/2026 3:09 AM US/Central.
Valid through 5/15/2026 10:15 AM US/Central.
fzus63 kmkx 150809
glflm
expires:202605151515;;589799
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 am cdt fri may 15 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...
southerly winds will increase through the rest of this morning
behind departing high pressure of 30.0 inches and low pressure of
29.0 inches moving from central manitoba into ontario. winds will
peak this afternoon into tonight, leading to a period of
southerly gales. a gale warning has been issued for the northern
third of the open waters.
southerly winds will persist on saturday, while becoming lighter
saturday morning into saturday afternoon as the low over canada
pulls away to the northeast. southerly winds will then pick back
up sunday afternoon into monday ahead of approaching low pressure.
gales are possible monday and moreso on tuesday. multiple rounds
of showers and storms will be possible this weekend into early
next week.
lmz080-669-671-673-675-777-779-870-872-874-876-878-151515-
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-
309 am cdt fri may 15 2026
sheboygan wi to pentwater mi south...
.today...south winds 15 to 25 kt increasing to 30 kt. waves 2 to
4 ft building to 7 to 10 ft occasionally to 13 ft.
.tonight...south winds to 30 kt diminishing to 10 to 20 kt.
chance of showers and slight chance of thunderstorms overnight.
waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
.saturday...south winds 10 to 20 kt diminishing to 10 to 15 kt.
chance of showers in the morning. waves 4 to 6 ft occasionally to
8 ft subsiding to 2 to 4 ft.
.saturday night...south winds 5 to 10 kt becoming southeast 10 to
15 kt. chance of showers overnight. waves 1 to 3 ft.
.sunday...southeast winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers in the morning. waves 2 to 4 ft building to
4 to 6 ft occasionally to 8 ft.
.sunday night...south winds 15 to 25 kt. waves 5 to 8 ft
occasionally to 10 ft.
.monday...south winds to 30 kt. chance of showers. waves 6 to
9 ft occasionally to 12 ft.
.tuesday...south winds to 30 kt becoming southwest. chance of
showers. waves 7 to 10 ft occasionally to 13 ft.
$$
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