(1/5)
Latest Great Lakes Marine Forecast by KCLE
Issued 5/9/2026 4:00 AM America/New_York.
Valid through 5/9/2026 10:30 AM America/New_York.
fzus61 kcle 090800
glfle
expires:202605091430;;261352
open lake forecast for lake erie
national weather service cleveland oh
400 am edt sat may 9 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...
mean sea level pressure wavers around 29.80 inches through this
afternoon as subtle trough axes move eastward across lake erie. a
cold front is expected to sweep southeastward across the lake
this evening through tonight. behind the front, a ridge averaging
30.10 inches should affect lake erie as the embedded high
pressure center moves from the canadian prairies to atlantic
waters near north carolina on sunday through tuesday. the ridge
exits generally eastward tuesday night through wednesday as a low
of 29.70 inches wobbles east-southeastward from the northwestern
great lakes toward lake ontario. this should allow a warm front to
sweep northward across lake erie tuesday night through wednesday
morning and a cold front to sweep eastward across the lake later
on wednesday.
lez162>164-091430-
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-
400 am edt sat may 9 2026
.today...southwest winds around 10 knots increasing to 15 to
20 knots. a chance of showers and thunderstorms early this
afternoon. showers and thunderstorms likely late. waves 1 to
3 feet.
.tonight...west winds 10 to 15 knots becoming north. a chance of
showers and thunderstorms early, then a slight chance of showers
and thunderstorms late in the evening. waves 1 to 3 feet.
.sunday...north winds 5 to 10 knots becoming southwest. waves
1 foot or less.
.sunday night...southwest winds 5 to 15 knots becoming north.
waves 2 feet or less.
.monday...north winds 5 to 10 knots becoming east. waves 2 feet
or less.
.tuesday...south winds 5 to 10 knots becoming southwest and
increasing to 15 to 25 knots. a chance of showers during the day,
then showers tuesday night. waves 2 feet or less building to 2 to
4 feet.
.wednesday...southwest winds 15 to 25 knots becoming northwest. a
chance of showers. waves 2 to 4 feet subsiding to 1 to 3 feet.
winds and waves higher in and near thunderstorms.
$$
(2/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/9/2026 3:41 AM America/New_York.
Valid through 5/9/2026 11:45 AM America/New_York.
fzus63 kdtx 090741
glflh
expires:202605091545;;260758
open lake forecast for lake huron
national weather service detroit/pontiac mi
341 am edt sat may 9 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...southwest winds increase today ahead of a cold front,
which will trigger numerous showers and scattered thunderstorms
this afternoon. high pressure returns on sunday.
lhz363-462>464-091545-
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-
341 am edt sat may 9 2026
.today...south winds 10 to 15 knots increasing to 15 to 20 knots
in the afternoon. a chance of showers. waves 2 to 4 feet.
.tonight...west winds 10 to 15 knots veering to the northwest
after midnight. waves 3 to 5 feet.
.sunday...west winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then veering to the
west 5 to 10 knots early in the afternoon. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon.
.sunday night...north winds 5 to 10 knots becoming northwest
10 to 15 knots after midnight. waves 1 to 3 feet building to 2 to
4 feet after midnight.
.monday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then becoming light and variable
late in the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet
late in the afternoon.
.tuesday...light and variable winds becoming south 5 to 10 knots
in the late morning and early afternoon...then becoming southeast
10 to 15 knots early in the evening increasing to 15 to 20 knots
with gusts to around 30 knots by midnight. a chance of showers
early in the evening. showers by midnight. waves 1 to 3 feet
building to 2 to 4 feet by midnight.
.wednesday...southeast winds 15 to 20 knots with gusts to around
30 knots backing to the east in the late morning and early
afternoon...then backing to the north early in the evening
decreasing to 10 to 15 knots by midnight. a chance of showers.
waves 2 to 4 feet.
$$
(3/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 5/9/2026 3:39 AM America/New_York.
Valid through 5/9/2026 11:45 AM America/New_York.
fzus63 kdtx 090739
glfsc
expires:202605091545;;260635
lake st clair forecast
national weather service detroit/pontiac mi
339 am edt sat may 9 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...southwest winds increase today ahead of a cold front,
which will trigger numerous showers and scattered thunderstorms
this afternoon. high pressure returns on sunday.
lcz460-091545-
lake st clair-
339 am edt sat may 9 2026
...small craft advisory in effect from 10 am edt this morning
through this evening...
.today...southwest winds 5 to 10 knots increasing to 15 to 20
knots with gusts to 25 knots. partly sunny. a chance of showers
and thunderstorms early in the afternoon. light showers likely and
a chance of thunderstorms late in the afternoon. waves 1 to 3
feet.
.tonight...west winds 10 to 20 knots becoming north 5 to 10 knots
after midnight. partly cloudy. waves 2 feet or less.
.sunday...northwest winds 5 to 10 knots. sunny until late afternoon
becoming partly sunny. waves 2 feet or less.
.sunday night...northwest winds 10 to 15 knots becoming north 5 to
10 knots in the late evening and overnight. mostly cloudy becoming
partly cloudy by midnight becoming clear. waves 2 feet or less.
.monday...north winds 5 to 10 knots becoming northeast 10 to 15
knots in the evening. sunny in the morning becoming mostly clear.
waves 2 feet or less.
.tuesday...south winds 15 to 20 knots. showers. waves 2 feet or
less.
.wednesday...northwest winds 20 to 25 knots. mostly cloudy with
showers. waves 1 to 3 feet.
$$
(4/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 5/9/2026 3:16 AM US/Central.
Valid through 5/9/2026 10:30 AM US/Central.
fzus63 kmkx 090816
glflm
expires:202605091530;;262640
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
316 am cdt sat may 9 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...
low pressure around 29.5 inches over lake superior will move east
today. a cold front with the low will move across lake michigan
this morning. south to southwest winds ahead of the front will
veer west to northwest today after the front moves through. gusty
northwest winds are expected near the western shoreline this
afternoon. a backdoor cold front will sag southward across the
lake later this afternoon through tonight, with a brief period of
north winds behind it.
high pressure around 30.3 inches is then expected to move from
southern manitoba on sunday to over lake michigan by monday
afternoon. relatively light and variable winds are expected during
this period. low pressure around 29.7 inches should then move east
southeast across the region tuesday, with increasing south to
southeast winds ahead of it, veering west to northwest behind it
for tuesday night into wednesday.
lmz261-362-364-366-563-565-567-868-091530-
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-
316 am cdt sat may 9 2026
sheboygan wi to pentwater mi north...
.today...southwest winds 10 to 20 kt becoming west 15 to 25 kt.
scattered sprinkles this morning, then scattered rain showers
this afternoon. waves 4 to 6 ft occasionally to 8 ft subsiding to
2 to 4 ft.
.tonight...north winds 15 to 25 kt diminishing to 10 to 20 kt
late in the evening, then becoming northwest 10 to 15 kt after
midnight becoming west late. waves 2 to 4 ft subsiding to 1 to
2 ft.
.sunday...west winds 10 to 15 kt becoming northwest 10 to 20 kt.
waves 1 to 3 ft.
.sunday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 3 ft.
.monday...northwest winds 10 to 15 kt backing to southwest. waves
1 to 2 ft.
.monday night...south winds 10 to 15 kt becoming southeast. waves
1 to 2 ft.
.tuesday...south winds 15 to 25 kt becoming southeast to 30 kt.
rain showers. waves 4 to 6 ft occasionally to 8 ft building to
6 to 9 ft occasionally to 12 ft.
.wednesday...north winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft.
$$
(5/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 5/9/2026 3:16 AM US/Central.
Valid through 5/9/2026 10:30 AM US/Central.
fzus63 kmkx 090816
glflm
expires:202605091530;;262641
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
316 am cdt sat may 9 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...
low pressure around 29.5 inches over lake superior will move east
today. a cold front with the low will move across lake michigan
this morning. south to southwest winds ahead of the front will
veer west to northwest today after the front moves through. gusty
northwest winds are expected near the western shoreline this
afternoon. a backdoor cold front will sag southward across the
lake later this afternoon through tonight, with a brief period of
north winds behind it.
high pressure around 30.3 inches is then expected to move from
southern manitoba on sunday to over lake michigan by monday
afternoon. relatively light and variable winds are expected during
this period. low pressure around 29.7 inches should then move east
southeast across the region tuesday, with increasing south to
southeast winds ahead of it, veering west to northwest behind it
for tuesday night into wednesday.
lmz080-669-671-673-675-777-779-870-872-874-876-878-091530-
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-
316 am cdt sat may 9 2026
sheboygan wi to pentwater mi south...
.today...southwest winds 15 to 25 kt becoming northwest.
scattered sprinkles. waves 4 to 6 ft occasionally to 8 ft
subsiding to 1 to 3 ft.
.tonight...northwest winds 10 to 20 kt becoming north 5 to 10 kt.
waves 1 to 3 ft.
.sunday...north winds 5 to 10 kt veering to east 10 to 15 kt.
waves 1 to 2 ft.
.sunday night...north winds 5 to 10 kt becoming northeast. waves
1 to 2 ft.
.monday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.
.monday night...east winds 10 to 15 kt becoming southeast. waves
1 to 2 ft.
.tuesday...south winds 15 to 25 kt increasing to 30 kt. rain
showers. waves 4 to 6 ft occasionally to 8 ft building to 6 to
9 ft occasionally to 12 ft.
.wednesday...northwest winds 15 to 25 kt becoming north to 30 kt.
waves 5 to 8 ft occasionally to 10 ft.
$$
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