(1/5)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/12/2026 9:22 PM America/New_York.
Valid through 3/13/2026 4:15 AM America/New_York.
fzus61 kcle 130122
glfle
expires:202603130815;;573778
open lake forecast for lake erie
national weather service cleveland oh
922 pm edt thu mar 12 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 ridge averaging 30.10 inches will shift east tonight. strong
low pressure of 29.10 inches will move east through the great
lakes on friday, extending a cold front across the lake friday
afternoon. high pressure 30.30 inches will enter the region on
saturday. a warm front will lift north across the lake on sunday
night ahead of strong low pressure of 29.10 inches that will wrap
a cold front east across the lake on monday.
lez162>164-130815-
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-
922 pm edt thu mar 12 2026
...gale warning in effect from 8 am edt friday through late
friday night...
...low water advisory in effect from 8 am friday to 4 am edt
saturday...
.overnight...southwest winds 5 to 15 knots becoming south
15 to 20 knots. a chance of snow showers with a slight chance of
rain showers late. waves 1 foot or less building to 1 to 3 feet.
.friday...south winds to 30 knots becoming west and increasing to
35 knot gales in the afternoon. a chance of snow showers with a
slight chance of rain showers in the morning, then a chance of
rain showers in the afternoon. waves 5 to 8 feet building to 6 to
9 feet. waves occasionally around 11 feet.
.friday night...west gales to 35 knots diminishing to 30 knots
overnight. waves 5 to 9 feet subsiding to 3 to 6 feet. waves
occasionally around 11 feet.
.saturday...west winds 15 to 20 knots becoming northeast 5 to
15 knots. waves 3 to 5 feet subsiding to 1 foot or less.
.saturday night...east winds 5 to 15 knots increasing to 15 to
20 knots. a chance of snow showers. waves 1 to 3 feet building to
2 to 4 feet.
.sunday...east winds 15 to 20 knots becoming south and increasing
to 30 knots. a chance of rain showers during the day, then rain
sunday night. waves 3 to 5 feet building to 4 to 7 feet. waves
occasionally around 9 feet.
.monday...southwest gales to 35 knots becoming west and
diminishing to 30 knots. a chance of rain and snow during the
day. waves 5 to 8 feet. waves occasionally around 10 feet.
.tuesday...west winds to 30 knots diminishing to 15 to 25 knots.
waves 4 to 7 feet subsiding to 1 to 3 feet. waves occasionally
around 9 feet.
$$
(2/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/12/2026 9:37 PM America/New_York.
Valid through 3/13/2026 5:45 AM America/New_York.
fzus63 kdtx 130137
glfsc
expires:202603130945;;574063
lake st clair forecast
national weather service detroit/pontiac mi
937 pm edt thu mar 12 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 strong low pressure system, 29.10 inches, moves over
northern lower michigan and central lake huron friday morning.
this will bring widespread gales to the great lakes. a gale
warning is in effect. the low quickly moves out friday night with
high pressure, 30.20 inches, briefly building back in on saturday.
a second strong low pressure system, 28.80 inches, moves across
southern michigan and lake huron late sunday into monday. this
brings additional potential for gust to gales.
lcz460-130945-
lake st clair-
937 pm edt thu mar 12 2026
...gale warning in effect from 4 am edt friday through late
friday night...
.rest of tonight...south winds 5 to 10 knots becoming southeast 15
to 20 knots with gusts to 30 knots early in the morning. partly
cloudy by midnight...then mostly cloudy with a chance of light snow
early in the morning. waves 2 feet or less.
.friday...south winds to 30 knots becoming southwest 20 to 25 knots
early in the afternoon...then becoming west to 30 knots late in the
afternoon. gusts to 45 knot gales. light rain and snow in the
morning...then a chance of light rain and snow in the afternoon.
waves 2 to 4 feet.
.friday night...west winds to 30 knots with gusts to 45 knot gales
becoming northwest 20 to 25 knots with gusts to 30 knots after
midnight. partly cloudy. a chance of light snow early in the
evening. waves 2 to 4 feet.
.saturday...northwest winds 15 to 20 knots diminishing to 5 to 10
knots in the late morning and early afternoon...then backing to the
southwest early in the afternoon. partly sunny. waves 2 feet or
less.
.saturday night...southeast winds 5 to 10 knots becoming east 15 to
20 knots. mostly cloudy. a chance of light snow ...then snow likely
after midnight. waves 2 feet or less.
.sunday...east winds 15 to 20 knots becoming southeast 20 to 25
knots with gusts to 30 knots in the afternoon...then becoming south
to 30 knots with gusts to 35 knot gales in the evening. cloudy.
light rain and snow likely. waves 2 to 4 feet building to 3 to 5
feet in the evening. waves occasionally around 7 feet. a gale
warning may be needed.
.monday...west at 35 knot gales with gusts to 40 knot gales. light
rain with light snow likely. waves 4 to 6 feet. waves occasionally
around 8 feet.
.tuesday...west winds to 30 knots with gusts to 35 knot gales.
mostly cloudy. waves 2 to 4 feet.
$$
(3/5)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/12/2026 9:37 PM America/New_York.
Valid through 3/13/2026 5:45 AM America/New_York.
fzus63 kdtx 130137
glflh
expires:202603130945;;574060
open lake forecast for lake huron
national weather service detroit/pontiac mi
937 pm edt thu mar 12 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 strong low pressure system, 29.10 inches, moves over
northern lower michigan and central lake huron friday morning.
this will bring widespread gales to the great lakes. a gale
warning is in effect. the low quickly moves out friday night with
high pressure, 30.20 inches, briefly building back in on saturday.
a second strong low pressure system, 28.80 inches, moves across
southern michigan and lake huron late sunday into monday. this
brings additional potential for gust to gales.
lhz462>464-130945-
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-
937 pm edt thu mar 12 2026
...gale warning in effect from 4 am edt friday through late
friday night...
.rest of tonight...southeast winds 5 to 10 knots increasing to
10 to 15 knots with gusts to around 30 knots early in the
morning. a chance of snow after midnight. snow may be heavy at
times after midnight. waves 1 to 3 feet building to 2 to 4 feet
early in the morning.
.friday...southeast winds 20 to 25 knots increasing to 30 knots
late in the morning...then becoming south 20 to 25 knots in the
afternoon. gusts to 40 knot gales. snow and rain in the morning...
then rain likely in the afternoon. waves 8 to 12 feet building to
10 to 14 feet early in the afternoon...then subsiding to 6 to
9 feet late in the afternoon. waves occasionally around 18 feet.
.friday night...west winds 20 to 25 knots becoming northwest to
30 knots in the late evening and overnight. gusts to 40 knot
gales. a chance of rain and snow in the evening. waves 6 to
9 feet building to 10 to 14 feet in the late evening and
overnight. waves occasionally around 18 feet.
.saturday...northwest winds 20 to 25 knots decreasing to 5 to
10 knots. waves 8 to 12 feet subsiding to 3 to 5 feet early in
the afternoon. waves occasionally around 15 feet.
.saturday night...north winds 5 to 10 knots veering to the east
by midnight...then becoming southeast 10 to 15 knots after
midnight. a chance of snow after midnight. waves 2 to 4 feet
subsiding to 1 to 3 feet by midnight...then building to 2 to
4 feet after midnight.
.sunday...east winds 15 to 20 knots with gusts to around 30 knots
increasing to 20 to 25 knots with gusts to around 30 knots late
in the morning...then increasing to 30 knots with gusts to
40 knot gales late in the afternoon becoming south at 35 knot
gales with gusts to 40 knot gales late in the evening. snow in
the morning. rain. waves 6 to 9 feet building to 10 to 14 feet
late in the afternoon. waves occasionally around 18 feet. a gale
warning may be needed.
.monday...south at 35 knot gales veering to the west . gusts to
40 knot gales. rain with snow and freezing rain likely early in
the morning...then a chance of snow and rain . waves 12 to
16 feet. waves occasionally around 20 feet.
.tuesday...west at 35 knot gales with gusts to 40 knot gales
decreasing to 15 to 20 knots. waves 10 to 14 feet subsiding to
5 to 7 feet by midnight. waves occasionally around 18 feet.
$$
(4/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/12/2026 9:12 PM US/Central.
Valid through 3/13/2026 4:45 AM US/Central.
fzus63 kmkx 130212
glflm
expires:202603130945;;575643
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
912 pm cdt thu mar 12 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 29.2 inches in the northern plains will
approach and cross the northern half of lake michigan tonight
through friday morning. south winds quickly increase as the low
approaches tonight then veer westerly to northwesterly as it
moves into ontario friday evening. widespread gale force gusts
are expected across the northern half of the open waters, where a
gale warning remains in effect between 10 pm cdt tonight and 10
pm cdt friday evening. even stronger storm force gusts are
expected across the southern half of the open waters where a storm
warning is in effect. areas of rain and snow will accompany
passing low pressure tonight. areas of light to occasionally
moderate freezing spray are possible over northern lake michigan
friday afternoon.
winds will diminish later friday night through saturday as 30.2
inch high pressure builds into the northern great plains &
crosses the open waters. east-northeast winds will steadily
increase saturday night through sunday as a second low pressure
around 29.4 inch form in the central great plains. the low will
progress over or just south of the southern lake michigan sunday
night as it deepens toward 29.1 inches, resulting in a northerly
wind shift. winds will shift out of the northwest monday as the
low continues into ontario. expect another prolonged period of
gales, if not storm force gusts across all of the open waters as
the low approaches & shifts east of lake michigan early sunday
morning through monday, with headlines becoming necessary within
the next 12-24 hours. prolonged snow is expected saturday night
through monday, some of which could be heavy. sleet or freezing
rain could mix in with snow over southern lake michigan saturday
night into sunday. freezing spray potential will increase monday
behind the departing low, with areas of moderate to heavy freezing
spray possible. trends will be monitored in coming forecasts for
potential headlines.
lmz261-362-364-366-563-565-567-868-130945-
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-
912 pm cdt thu mar 12 2026
sheboygan wi to pentwater mi north...
...gale warning in effect through friday evening...
.rest of tonight...south winds 15 to 25 kt becoming southeast
storm force winds to 50 kt. slight chance of rain and snow
through early evening, then snow and rain overnight. waves 3 to
5 ft building to 14 to 18 ft occasionally to 23 ft.
.friday...south gales to 45 kt backing to north storm force winds
to 50 kt. snow with a chance of rain in the morning, then snow
and rain likely in the afternoon. waves 14 to 18 ft occasionally
to 23 ft subsiding to 12 to 16 ft occasionally to 21 ft.
.friday night...north gales to 40 kt becoming northwest 10 to
20 kt. waves 12 to 16 ft occasionally to 21 ft subsiding to 4 to
7 ft occasionally to 9 ft.
.saturday...northwest winds 10 to 15 kt backing to south 5 to
10 kt. waves 3 to 5 ft subsiding to 1 to 2 ft.
.saturday night...southeast winds 10 to 15 kt becoming east to
30 kt overnight. chance of snow. waves 1 to 3 ft building to 5 to
8 ft occasionally to 10 ft.
.sunday...east gales to 35 kt becoming northeast gales to 45 kt
in the afternoon. visibility one quarter mile or less at times.
snow. waves 10 to 14 ft occasionally to 18 ft building to 15 to
20 ft occasionally to 26 ft.
.sunday night...northeast storm force winds to 50 kt becoming
north. snow. visibility one quarter mile or less at times. waves
25 to 30 ft occasionally to 39 ft.
.monday...north storm force winds to 50 kt becoming northwest.
snow. visibility one quarter mile or less at times. waves 25 to
30 ft occasionally to 39 ft subsiding to 20 to 25 ft occasionally
to 33 ft.
.tuesday...northwest gales to 40 kt diminishing to 15 to 25 kt.
heavy freezing spray. waves 12 to 16 ft occasionally to 21 ft
subsiding to 6 to 9 ft occasionally to 12 ft.
$$
(5/5)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/12/2026 9:12 PM US/Central.
Valid through 3/13/2026 4:45 AM US/Central.
fzus63 kmkx 130212
glflm
expires:202603130945;;575644
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
912 pm cdt thu mar 12 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 29.2 inches in the northern plains will
approach and cross the northern half of lake michigan tonight
through friday morning. south winds quickly increase as the low
approaches tonight then veer westerly to northwesterly as it
moves into ontario friday evening. widespread gale force gusts
are expected across the northern half of the open waters, where a
gale warning remains in effect between 10 pm cdt tonight and 10
pm cdt friday evening. even stronger storm force gusts are
expected across the southern half of the open waters where a storm
warning is in effect. areas of rain and snow will accompany
passing low pressure tonight. areas of light to occasionally
moderate freezing spray are possible over northern lake michigan
friday afternoon.
winds will diminish later friday night through saturday as 30.2
inch high pressure builds into the northern great plains &
crosses the open waters. east-northeast winds will steadily
increase saturday night through sunday as a second low pressure
around 29.4 inch form in the central great plains. the low will
progress over or just south of the southern lake michigan sunday
night as it deepens toward 29.1 inches, resulting in a northerly
wind shift. winds will shift out of the northwest monday as the
low continues into ontario. expect another prolonged period of
gales, if not storm force gusts across all of the open waters as
the low approaches & shifts east of lake michigan early sunday
morning through monday, with headlines becoming necessary within
the next 12-24 hours. prolonged snow is expected saturday night
through monday, some of which could be heavy. sleet or freezing
rain could mix in with snow over southern lake michigan saturday
night into sunday. freezing spray potential will increase monday
behind the departing low, with areas of moderate to heavy freezing
spray possible. trends will be monitored in coming forecasts for
potential headlines.
lmz080-669-671-673-675-777-779-870-872-874-876-878-130945-
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-
912 pm cdt thu mar 12 2026
sheboygan wi to pentwater mi south...
...storm warning in effect through friday evening...
.rest of tonight...south winds 15 to 25 kt increasing to storm
force winds to 50 kt. chance of rain and slight chance of snow
through early evening, then chance of rain overnight. waves 3 to
5 ft building to 14 to 18 ft occasionally to 23 ft.
.friday...southwest storm force winds to 50 kt becoming
northwest. chance of rain in the morning, then slight chance of
snow in the afternoon. waves 14 to 18 ft occasionally to 23 ft.
.friday night...northwest gales to 45 kt diminishing to 10 to
20 kt. waves 14 to 18 ft occasionally to 23 ft subsiding to 5 to
8 ft occasionally to 10 ft.
.saturday...north winds 10 to 15 kt veering to southeast. waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.saturday night...east winds 10 to 20 kt increasing to 30 kt
overnight. chance of snow and rain in the evening, then snow and
rain overnight. waves 2 to 4 ft building to 6 to 9 ft
occasionally to 12 ft.
.sunday...east gales to 35 kt increasing to gales to 45 kt in the
afternoon. rain and snow. waves 12 to 16 ft occasionally to 21 ft
building to 15 to 20 ft occasionally to 26 ft.
.sunday night...north storm force winds to 50 kt. freezing spray.
rain and snow. waves 25 to 30 ft occasionally to 39 ft.
.monday...northwest storm force winds to 50 kt. freezing spray.
snow. waves 25 to 30 ft occasionally to 39 ft.
.tuesday...northwest gales to 35 kt becoming west 15 to 25 kt.
heavy freezing spray. waves 12 to 16 ft occasionally to 21 ft
subsiding to 8 to 11 ft occasionally to 14 ft.
$$
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