(1/17)
Latest Great Lakes Marine Forecast by KBUF
Issued 3/11/2026 4:03 AM America/New_York.
Valid through 3/11/2026 11:00 AM America/New_York.
fzus61 kbuf 110803
glflo
expires:202603111500;;002104
open lake forecast for lake ontario
national weather service buffalo ny
403 am edt wed mar 11 2026
for waters beyond five nautical miles of shore on lake ontario
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 29.6 inch low will ripple along a frontal boundary
today, with this wave passing just to the west of the lake this
afternoon. this low will deepen to 29.4 inches as it moves across
southern quebec thursday. a 30.2 inch high will move across the ohio
valley and mid-atlantic region thursday night through friday. a 29.6
inch surface low will pass across the lake friday night with a cold
front, then shifting east of the lake saturday. a 30.3 inch surface
high will ridge across the lake saturday night, and move east of the
lake sunday. meanwhile, a 29.5 inch surface low over the mid
mississippi valley sunday morning will track northeastward and
deepen to 28.9 inches just to the west of the lake monday morning.
loz062-111500-
lake ontario open waters from the niagara river to hamlin beach-
403 am edt wed mar 11 2026
...gale warning in effect from this evening through thursday
morning...
.today...east winds 15 to 25 knots becoming south 15 to 20 knots.
rain showers with a chance of thunderstorms. waves 5 to 8 feet
subsiding to 2 to 4 feet. waves occasionally around 10 feet.
.tonight...southwest winds 15 to 25 knots becoming west and
increasing to 35 knot gales after midnight. a chance of rain
showers through the early overnight. waves 3 to 5 feet building
to 10 to 14 feet. waves occasionally around 18 feet.
.thursday...west gales to 35 knots diminishing to 30 knots. waves
10 to 14 feet subsiding to 6 to 9 feet. waves occasionally around
18 feet.
.thursday night...west winds 15 to 25 knots becoming southwest
and diminishing to 10 to 15 knots. waves 5 to 8 feet subsiding to
2 to 4 feet. waves occasionally around 10 feet.
.friday...southeast winds to 30 knots becoming west and
increasing to 35 knot gales. rain and snow during the day, then
rain likely with a chance of snow showers friday night. waves
3 to 6 feet building to 10 to 15 feet. waves occasionally around
19 feet.
.saturday...west gales to 35 knots becoming northeast and
diminishing to 15 to 20 knots. a chance of snow showers saturday
night. waves 10 to 14 feet subsiding to 1 to 3 feet. waves
occasionally around 18 feet.
.sunday...east winds 15 to 25 knots becoming south and increasing
to 35 knot gales. snow and rain showers. waves 3 to 5 feet
building to 10 to 14 feet. waves occasionally around 18 feet.
winds and waves higher in and near thunderstorms.
$$
(2/17)
Latest Great Lakes Marine Forecast by KBUF
Issued 3/11/2026 4:03 AM America/New_York.
Valid through 3/11/2026 11:00 AM America/New_York.
fzus61 kbuf 110803
glflo
expires:202603111500;;002105
open lake forecast for lake ontario
national weather service buffalo ny
403 am edt wed mar 11 2026
for waters beyond five nautical miles of shore on lake ontario
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 29.6 inch low will ripple along a frontal boundary
today, with this wave passing just to the west of the lake this
afternoon. this low will deepen to 29.4 inches as it moves across
southern quebec thursday. a 30.2 inch high will move across the ohio
valley and mid-atlantic region thursday night through friday. a 29.6
inch surface low will pass across the lake friday night with a cold
front, then shifting east of the lake saturday. a 30.3 inch surface
high will ridge across the lake saturday night, and move east of the
lake sunday. meanwhile, a 29.5 inch surface low over the mid
mississippi valley sunday morning will track northeastward and
deepen to 28.9 inches just to the west of the lake monday morning.
loz063>065-111500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 am edt wed mar 11 2026
...gale warning in effect from this evening through thursday
morning...
.today...east winds 15 to 20 knots becoming south. rain showers
with a chance of thunderstorms. waves 3 to 6 feet subsiding to
2 to 4 feet.
.tonight...south winds 15 to 20 knots becoming west and
increasing to 35 knot gales after midnight. rain showers with a
chance of thunderstorms early, then rain showers likely late in
the evening. a chance of rain showers after midnight. waves 2 to
4 feet building to 13 to 17 feet. waves occasionally around
22 feet.
.thursday...west gales to 35 knots diminishing to 30 knots. waves
12 to 17 feet subsiding to 10 to 14 feet. waves occasionally
around 22 feet.
.thursday night...west winds to 30 knots diminishing to 10 to
15 knots overnight. waves 9 to 12 feet subsiding to 3 to 5 feet.
waves occasionally around 15 feet.
.friday...south winds 15 to 25 knots becoming west and increasing
to 40 knot gales. rain and snow during the day, then snow showers
likely with rain friday night. waves 3 to 5 feet building to
14 to 18 feet. waves occasionally around 23 feet.
.saturday...west gales to 40 knots becoming north and diminishing
to 10 to 15 knots. a chance of snow showers. waves 14 to 18 feet
subsiding to 2 to 4 feet. waves occasionally around 23 feet.
.sunday...east winds 15 to 25 knots becoming south and increasing
to 40 knot gales. rain showers with snow showers likely. waves
3 to 5 feet building to 9 to 12 feet. waves occasionally around
15 feet.
winds and waves higher in and near thunderstorms.
$$
(3/17)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/11/2026 4:05 AM America/New_York.
Valid through 3/11/2026 10:15 AM America/New_York.
fzus61 kcle 110805
glfle
expires:202603111415;;002344
open lake forecast for lake erie
national weather service cleveland oh
405 am edt wed mar 11 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...
low pressure of 29.40 inches will move northeast across the great
lakes today, extending a cold front through the area this evening.
a ridge averaging 30.20 inches will build into the area on
thursday, followed by a stronger low pressure system of 29.40
inches moving east through the great lakes on friday. high
pressure 30.10 inches returns saturday. another low pressure
system 29.50 inches will track east through the great lakes on
sunday.
lez164>167-111415-
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-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
405 am edt wed mar 11 2026
.today...south winds 15 to 25 knots becoming southwest. showers
with a chance of thunderstorms through early afternoon, then
showers with a slight chance of thunderstorms late. waves 3 to
6 feet building to 4 to 7 feet. waves occasionally around 9 feet.
.tonight...west winds to 30 knots becoming northwest. rain
showers early, then a chance of rain showers late in the evening.
waves 5 to 8 feet. waves occasionally around 10 feet.
.thursday...west winds 15 to 25 knots. waves 4 to 7 feet
subsiding to 2 to 4 feet. waves occasionally around 9 feet.
.thursday night...west winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. a chance of rain showers overnight.
waves 1 to 3 feet building to 3 to 5 feet.
.friday...south gales to 35 knots becoming west and diminishing
to 30 knots. a chance of rain showers during the day. waves 8 to
12 feet subsiding to 6 to 9 feet. waves occasionally around
15 feet.
.saturday...west winds 15 to 20 knots becoming east. a chance of
snow and rain saturday night. waves 3 to 6 feet subsiding to 3 to
5 feet.
.sunday...east winds 15 to 25 knots becoming southwest and
increasing to 35 knot gales. rain likely with a chance of snow
during the day, then rain and snow sunday night. waves 5 to
8 feet building to 9 to 12 feet. waves occasionally around
15 feet.
winds and waves higher in and near thunderstorms.
$$
(4/17)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/11/2026 4:05 AM America/New_York.
Valid through 3/11/2026 10:15 AM America/New_York.
fzus61 kcle 110805
glfle
expires:202603111415;;002343
open lake forecast for lake erie
national weather service cleveland oh
405 am edt wed mar 11 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...
low pressure of 29.40 inches will move northeast across the great
lakes today, extending a cold front through the area this evening.
a ridge averaging 30.20 inches will build into the area on
thursday, followed by a stronger low pressure system of 29.40
inches moving east through the great lakes on friday. high
pressure 30.10 inches returns saturday. another low pressure
system 29.50 inches will track east through the great lakes on
sunday.
lez162-163-111415-
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-
405 am edt wed mar 11 2026
.today...south winds 15 to 25 knots becoming west. showers with a
chance of thunderstorms through early afternoon, then showers
late. waves 1 to 3 feet building to 3 to 5 feet.
.tonight...west winds 20 to 25 knots becoming northwest. a chance
of rain showers early. waves 3 to 5 feet.
.thursday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet.
.thursday night...west winds around 10 knots becoming south and
increasing to 30 knots overnight. a chance of rain showers
overnight. waves 2 feet or less building to 3 to 5 feet.
.friday...south gales to 35 knots becoming west and diminishing
to 15 to 25 knots. a chance of rain showers during the day. waves
4 to 7 feet subsiding to 3 to 5 feet. waves occasionally around
9 feet.
.saturday...northwest winds 5 to 15 knots becoming east and
increasing to 15 to 25 knots. a chance of snow and rain saturday
night. waves 1 to 3 feet building to 2 to 4 feet.
.sunday...east winds to 30 knots becoming west. rain with a
chance of snow. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet.
winds and waves higher in and near thunderstorms.
$$
(5/17)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/11/2026 4:05 AM America/New_York.
Valid through 3/11/2026 10:15 AM America/New_York.
fzus61 kcle 110805
glfle
expires:202603111415;;002345
open lake forecast for lake erie
national weather service cleveland oh
405 am edt wed mar 11 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...
low pressure of 29.40 inches will move northeast across the great
lakes today, extending a cold front through the area this evening.
a ridge averaging 30.20 inches will build into the area on
thursday, followed by a stronger low pressure system of 29.40
inches moving east through the great lakes on friday. high
pressure 30.10 inches returns saturday. another low pressure
system 29.50 inches will track east through the great lakes on
sunday.
lez061-168-169-111415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
405 am edt wed mar 11 2026
.today...south winds 15 to 20 knots becoming southwest. showers
with a chance of thunderstorms through early afternoon, then
showers likely with a slight chance of thunderstorms late. waves
in ice free areas 1 to 3 feet building to 2 to 4 feet.
.tonight...west winds 20 to 25 knots. rain showers likely early,
then a chance of rain showers late in the evening. waves 3 to
6 feet building to 4 to 7 feet, then subsiding to 3 to 6 feet.
waves occasionally around 9 feet.
.thursday...west winds 15 to 25 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet.
.thursday night...west winds 5 to 15 knots becoming south. waves
1 to 3 feet.
.friday...south winds to 30 knots becoming west. a chance of rain
and snow showers during the day. waves 3 to 5 feet building to
5 to 9 feet. waves occasionally around 11 feet.
.saturday...west winds 15 to 25 knots becoming east and
diminishing to 5 to 15 knots. a chance of snow and rain saturday
night. waves 3 to 5 feet subsiding to 1 foot or less.
.sunday...east winds 15 to 25 knots becoming southwest and
increasing to 35 knot gales. rain with snow likely. waves 2 feet
or less building to 5 to 8 feet. waves occasionally around
10 feet.
winds and waves higher in and near thunderstorms.
wave heights are for ice free areas.
$$
(6/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/11/2026 4:06 AM America/New_York.
Valid through 3/11/2026 12:15 PM America/New_York.
fzus63 kdtx 110806
glfsc
expires:202603111615;;002407
lake st clair forecast
national weather service detroit/pontiac mi
406 am edt wed mar 11 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...low pressure, 29.50 inches, lifts across lower
michigan today with several rounds of showers and thunderstorms.
the system's frontal passage eventually leads to a transition to
melting snowfall by this evening. seasonably cool conditions
ensue thursday, followed by more rain, snow, and wind with the
next system on friday.
lcz460-111615-
lake st clair-
406 am edt wed mar 11 2026
.today...south winds 10 to 15 knots becoming southwest 15 to 20
knots early in the afternoon...then veering to the west late in the
afternoon. a chance of thunderstorms in the morning. rain. waves 1
to 3 feet.
.tonight...northwest winds 20 to 25 knots. gusts to 30 knots after
midnight. mostly cloudy with a chance of light rain early in the
evening...then partly cloudy in the late evening and overnight.
waves 1 to 3 feet.
.thursday...northwest winds 15 to 20 knots. mostly sunny. waves 1 to
3 feet.
.thursday night...west winds 10 to 15 knots backing to the southwest
by midnight...then becoming south 20 to 25 knots with gusts to 30
knots after midnight. partly cloudy ...then mostly cloudy with light
rain likely after midnight. waves 1 to 3 feet. a small craft
advisory may be needed.
.friday...southwest at 35 knot gales veering to the west in the
evening. gusts to 40 knot gales. mostly cloudy with light rain
likely in the morning...then partly cloudy in the afternoon and
evening. waves 3 to 5 feet. waves occasionally around 7 feet. a
gale warning may be needed.
.saturday...southeast winds 20 to 25 knots with gusts to 30 knots.
partly cloudy. a chance of light snow. waves 1 to 3 feet.
.sunday...south winds to 30 knots with gusts to 35 knot gales. light
rain and snow. waves 3 to 5 feet. waves occasionally around 7 feet.
wave heights are for ice free areas.
$$
(7/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/11/2026 4:04 AM America/New_York.
Valid through 3/11/2026 12:15 PM America/New_York.
fzus63 kdtx 110804
glflh
expires:202603111615;;002279
open lake forecast for lake huron
national weather service detroit/pontiac mi
404 am edt wed mar 11 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...low pressure, 29.50 inches, lifts across lower
michigan today with several rounds of showers and thunderstorms.
the system's frontal passage eventually leads to a transition to
melting snowfall by this evening. seasonably cool conditions
ensue thursday, followed by more rain, snow, and wind with the
next system on friday.
lhz462>464-111615-
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-
404 am edt wed mar 11 2026
.today...east winds 10 to 15 knots backing to the west late in
the afternoon. a chance of rain in the morning...then rain in the
afternoon. waves 4 to 6 feet. waves occasionally around 8 feet.
.tonight...northwest winds 20 to 25 knots increasing to 30 knots
after midnight. brief gusts to 35 knot gales. a chance of rain
and sleet in the evening. waves 6 to 9 feet. waves occasionally
around 11 feet.
.thursday...northwest winds 20 to 25 knots with gusts to around
30 knots becoming west 10 to 15 knots. waves 6 to 9 feet
subsiding to 4 to 6 feet early in the afternoon. waves
occasionally around 12 feet.
.thursday night...northwest winds 5 to 10 knots backing to the
southwest by midnight...then becoming south 15 to 20 knots with
gusts to around 30 knots after midnight. snow and rain likely
after midnight. waves 2 to 4 feet subsiding to 1 to 3 feet by
midnight...then building to 2 to 4 feet after midnight.
.friday...south winds to 30 knots increasing to 35 knot gales
late in the morning...then veering to the west late in the
afternoon decreasing to 30 knots late in the evening. gusts to
45 knot gales. snow likely in the morning. rain likely. a chance
of snow late in the morning. waves 8 to 12 feet building to 10 to
14 feet late in the afternoon. waves occasionally around 18 feet.
a gale warning may be needed.
.saturday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots in the late morning and
early afternoon...then becoming northwest 10 to 15 knots early in
the evening becoming east 10 to 15 knots by midnight. waves 10 to
14 feet subsiding to 3 to 5 feet. waves occasionally around
18 feet.
.sunday...east winds 15 to 20 knots increasing to 20 to 25 knots
with gusts to around 30 knots in the late morning and early
afternoon...then increasing to 30 knots with gusts to 35 knot
gales early in the evening becoming northeast at 35 knot gales
with gusts to 40 knot gales by midnight. snow and rain likely
early in the morning...then rain and snow. waves 6 to 9 feet
building to 12 to 16 feet . waves occasionally around 20 feet. a
gale warning may be needed.
$$
(8/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/11/2026 4:04 AM America/New_York.
Valid through 3/11/2026 12:15 PM America/New_York.
fzus63 kdtx 110804
glflh
expires:202603111615;;002277
open lake forecast for lake huron
national weather service detroit/pontiac mi
404 am edt wed mar 11 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...low pressure, 29.50 inches, lifts across lower
michigan today with several rounds of showers and thunderstorms.
the system's frontal passage eventually leads to a transition to
melting snowfall by this evening. seasonably cool conditions
ensue thursday, followed by more rain, snow, and wind with the
next system on friday.
lhz361-111615-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
404 am edt wed mar 11 2026
.today...northeast winds 20 to 25 knots with gusts to around
30 knots becoming north 15 to 20 knots in the afternoon. a chance
of freezing rain in the morning...then a chance of freezing rain
and snow in the afternoon. waves 8 to 12 feet subsiding to 4 to
6 feet late in the afternoon. waves occasionally around 15 feet.
.tonight...northwest winds 20 to 25 knots with gusts to around 30
knots increasing to 30 knots with brief gusts to 35 knot gales
after midnight. a chance of snow in the evening. waves 6 to 9
feet. waves occasionally around 12 feet.
.thursday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots. waves 5 to 7 feet. waves
occasionally around 10 feet.
.thursday night...west winds 5 to 10 knots becoming southeast
10 to 15 knots by midnight...then increasing to 20 to 25 knots
with gusts to 35 knot gales after midnight. snow likely after
midnight. snow may be heavy at times after midnight. waves 1 to
3 feet building to 4 to 6 feet after midnight. waves occasionally
around 8 feet.
.friday...southeast at 35 knot gales becoming east to 30 knots
late in the morning...then backing to the northwest late in the
afternoon decreasing to 20 to 25 knots late in the evening. gusts
to 40 knot gales. snow in the morning. snow likely late in the
morning. snow may be heavy at times in the morning. waves 10 to
14 feet. waves occasionally around 18 feet. a gale warning may be
needed.
.saturday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then becoming
west 5 to 10 knots early in the evening becoming east 10 to
15 knots by midnight. a chance of. waves 6 to 9 feet subsiding to
4 to 6 feet in the late morning and early afternoon...then
subsiding to 1 to 3 feet early in the evening building to 3 to
5 feet by midnight. waves occasionally around 12 feet.
.sunday...east winds 20 to 25 knots becoming northeast at 35 knot
gales. snow likely. rain and freezing rain likely. a chance of
snow by midnight. waves 10 to 14 feet. waves occasionally around
18 feet. a gale warning may be needed.
wave heights are for ice free areas.
$$
(9/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/11/2026 4:04 AM America/New_York.
Valid through 3/11/2026 12:15 PM America/New_York.
fzus63 kdtx 110804
glflh
expires:202603111615;;002278
open lake forecast for lake huron
national weather service detroit/pontiac mi
404 am edt wed mar 11 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...low pressure, 29.50 inches, lifts across lower
michigan today with several rounds of showers and thunderstorms.
the system's frontal passage eventually leads to a transition to
melting snowfall by this evening. seasonably cool conditions
ensue thursday, followed by more rain, snow, and wind with the
next system on friday.
lhz362-363-111615-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
404 am edt wed mar 11 2026
.today...northeast winds 20 to 25 knots with gusts to around
30 knots becoming north 15 to 20 knots in the afternoon. snow...a
chance of rain...freezing rain and sleet in the afternoon. waves
8 to 12 feet. waves occasionally around 15 feet.
.tonight...northwest winds 20 to 25 knots increasing to 30 knots
in the late evening and overnight. brief gusts to 35 knot gales.
a chance of snow in the evening. waves 8 to 12 feet building to 10
to 14 feet after midnight. waves occasionally around 18 feet.
.thursday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
afternoon. waves 8 to 12 feet subsiding to 4 to 6 feet early in
the afternoon. waves occasionally around 15 feet.
.thursday night...west winds 10 to 15 knots becoming southeast
20 to 25 knots with gusts to 35 knot gales after midnight. snow
likely after midnight. waves 3 to 5 feet subsiding to 2 to 4 feet
by midnight...then building to 4 to 6 feet after midnight. waves
occasionally around 8 feet.
.friday...southeast at 35 knot gales veering to the west late in
the afternoon...then becoming northwest to 30 knots late in the
evening. gusts to 40 knot gales. snow and rain likely in the
morning...then a chance of rain late in the morning. a chance of
snow late in the morning. waves 12 to 16 feet. waves occasionally
around 20 feet. a gale warning may be needed.
.saturday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots in the late morning and
early afternoon...then becoming northwest 10 to 15 knots early in
the evening becoming east 10 to 15 knots by midnight. a chance
of. waves 10 to 14 feet subsiding to 3 to 5 feet. waves
occasionally around 18 feet.
.sunday...east winds 20 to 25 knots increasing to 30 knots with
gusts to 35 knot gales in the late morning and early afternoon...
then increasing to 35 knot gales with gusts to 40 knot gales
early in the evening becoming northeast at 40 knot gales by
midnight. snow and rain likely until afternoon...then rain and
snow . waves 10 to 14 feet building to 14 to 18 feet . waves
occasionally around 23 feet. a gale warning may be needed.
$$
(10/17)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/11/2026 2:38 AM US/Central.
Valid through 3/11/2026 10:15 AM US/Central.
fzus63 kmkx 110738
glflm
expires:202603111515;;001246
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
238 am cdt wed mar 11 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 29.6 inches is tracking into southwest
michigan early this morning turning winds more northerly as the
low passes over far southern lake michigan. gusty northwest winds
are expected this afternoon and evening behind the low. given the
increased potential for gusts to 35 knots, particularly across
eastern portions of the lake, have issued a gale warning.
then winds weaken overnight into early thursday as high pressure
around 30.2 inches briefly moves through the region. then a
strong low pressure around 29.1 inches is then expected to trek
across northern wisconsin into northern michigan thursday night/
friday. increasing southerly winds are expected later thursday
into thursday night ahead of the low. though the cold lake may
dampen the gust potential thursday night, southerly gales will
still be possible. there is a better chance for west to northwest
gales on friday behind the low. thus have issued a gale watch for
this timeframe. could even see a few gusts approach storm force
per latest models.
winds are expected to ease friday night into saturday as high
pressure around 30.2 inches moves in from the northwest. another
strong low pressure system is likely to move through the region
late in the weekend into early next week, with another round of
gales possible.
lmz261-362-364-366-563-565-567-868-111515-
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-
238 am cdt wed mar 11 2026
sheboygan wi to pentwater mi north...
...gale warning in effect from 1 pm cdt this afternoon through
late tonight...
...gale watch in effect from thursday evening through late friday
night...
.today...northeast winds to 30 kt becoming north gales to 35 kt.
patchy fog. chance of rain, light freezing rain, snow and light
freezing drizzle this morning, then snow, light freezing drizzle
and slight chance of light freezing rain this afternoon. waves
7 to 10 ft occasionally to 13 ft building to 8 to 11 ft
occasionally to 14 ft.
.tonight...northwest gales to 35 kt diminishing to 15 to 25 kt.
patchy fog in the evening. chance of snow in the evening. waves
10 to 14 ft occasionally to 18 ft subsiding to 6 to 9 ft
occasionally to 12 ft.
.thursday...northwest winds 10 to 20 kt backing to southwest.
waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft.
.thursday night...south gales to 35 kt becoming southeast gales
to 45 kt overnight. snow and rain likely in the evening, then
snow and rain overnight. waves 7 to 10 ft occasionally to 13 ft
building to 12 to 16 ft occasionally to 21 ft.
.friday...south gales to 45 kt veering to northwest. chance of
snow and rain in the morning, then chance of snow in the
afternoon. waves 12 to 16 ft occasionally to 21 ft.
.friday night...northwest gales to 40 kt diminishing to 30 kt.
waves 10 to 14 ft occasionally to 18 ft subsiding to 7 to 10 ft
occasionally to 13 ft.
.saturday...west winds 10 to 20 kt backing to south 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.sunday...east gales to 35 kt becoming northeast gales to 40 kt.
snow and rain. waves 10 to 14 ft occasionally to 18 ft building
to 14 to 18 ft occasionally to 23 ft.
$$
(11/17)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/11/2026 2:38 AM US/Central.
Valid through 3/11/2026 10:15 AM US/Central.
fzus63 kmkx 110738
glflm
expires:202603111515;;001247
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
238 am cdt wed mar 11 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 29.6 inches is tracking into southwest
michigan early this morning turning winds more northerly as the
low passes over far southern lake michigan. gusty northwest winds
are expected this afternoon and evening behind the low. given the
increased potential for gusts to 35 knots, particularly across
eastern portions of the lake, have issued a gale warning.
then winds weaken overnight into early thursday as high pressure
around 30.2 inches briefly moves through the region. then a
strong low pressure around 29.1 inches is then expected to trek
across northern wisconsin into northern michigan thursday night/
friday. increasing southerly winds are expected later thursday
into thursday night ahead of the low. though the cold lake may
dampen the gust potential thursday night, southerly gales will
still be possible. there is a better chance for west to northwest
gales on friday behind the low. thus have issued a gale watch for
this timeframe. could even see a few gusts approach storm force
per latest models.
winds are expected to ease friday night into saturday as high
pressure around 30.2 inches moves in from the northwest. another
strong low pressure system is likely to move through the region
late in the weekend into early next week, with another round of
gales possible.
lmz080-669-671-673-675-777-779-870-872-874-876-878-111515-
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-
238 am cdt wed mar 11 2026
sheboygan wi to pentwater mi south...
...gale warning in effect from 1 pm cdt this afternoon through
late tonight...
...gale watch in effect from thursday evening through late friday
night...
.today...north winds to 30 kt becoming northwest gales to 35 kt.
patchy fog. chance of rain, drizzle and light freezing drizzle
this morning, then snow and light freezing drizzle likely this
afternoon. waves 7 to 10 ft occasionally to 13 ft building to
8 to 12 ft occasionally to 16 ft.
.tonight...northwest gales to 35 kt diminishing to 15 to 25 kt.
slight chance of snow in the evening. waves 10 to 14 ft
occasionally to 18 ft subsiding to 8 to 11 ft occasionally to
14 ft.
.thursday...northwest winds 10 to 20 kt backing to south. waves
5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft.
.thursday night...south gales to 35 kt increasing to gales to
45 kt overnight. chance of rain in the evening, then rain likely
overnight. waves 7 to 10 ft occasionally to 13 ft building to
12 to 16 ft occasionally to 21 ft.
.friday...southwest gales to 45 kt becoming northwest. waves
14 to 18 ft occasionally to 23 ft.
.friday night...northwest gales to 40 kt diminishing to 15 to
25 kt. waves 12 to 16 ft occasionally to 21 ft subsiding to 8 to
11 ft occasionally to 14 ft.
.saturday...northeast winds 10 to 20 kt becoming southeast. waves
4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft.
.sunday...east gales to 35 kt becoming northeast gales to 40 kt.
rain and snow. waves 12 to 16 ft occasionally to 21 ft building
to 14 to 18 ft occasionally to 23 ft.
$$
(12/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/11/2026 4:01 AM America/New_York.
Valid through 3/11/2026 4:00 PM America/New_York.
fzus63 kmqt 110801
glfls
expires:202603112000;;001911
open lake forecast for lake superior
national weather service marquette mi
400 am edt wed mar 11 2026
for waters beyond 5 nautical miles of shore on lake superior.
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...
29.6 inch low pressure currently near southern lake michigan moves
through lower michigan today, reaching lake huron at 29.4 inches by
the evening before exiting eastward. thursday, lake superior will be
situated between a 29.3 inch low over the mouth of the st lawrence
river, a 29.4 inch low over north dakota, a 30.3 inch high over the
lower mississippi river valley, and a 30.1 inch ridge over hudson
bay. the dakotas low arrives near the lake friday morning at near
29.2 inches, then moves into southern quebec friday night. a 30.2
inch ridge will then follow across the upper great lakes saturday,
ahead of an approaching 29.5 inch low that deepens to 29.2 inches
over southern michigan sunday evening. monday, the low will move to
the ontario/quebec line while 30.4 inch high pressure overspreads
the northern plains.
lsz162-112000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt wed mar 11 2026 /300 am cdt wed mar 11 2026/
.early this morning...northeast winds 10 to 20 knots. a chance of
snow. waves 2 to 4 feet.
.today...north winds 10 to 20 knots backing northwest late. a
chance of snow through early afternoon. waves subsiding to 1 to
3 feet.
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. waves subsiding to calm to 2 feet.
.thursday...northwest winds 5 to 15 knots backing south in the
afternoon, then becoming east 10 to 20 knots late. a slight
chance of snow showers by mid afternoon. waves building to 1 to
3 feet.
.thursday night...east gales to 40 knots backing northeast after
midnight. snow showers. freezing spray after midnight. waves
building to 10 to 14 feet occasionally to 18 feet.
.friday...north gales to 40 knots becoming northwest 15 to
25 knots by mid afternoon. a chance of snow showers. waves
subsiding to 4 to 7 feet occasionally to 9 feet.
.friday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet.
.saturday...southwest winds 5 to 15 knots becoming northeast
20 to 30 knots. freezing spray. a chance of snow showers. waves
building to 5 to 8 feet occasionally to 10 feet.
.sunday...northeast gales to 35 knots becoming north gales to
40 knots. freezing spray. a chance of snow showers. waves
building to 11 to 15 feet occasionally to 19 feet, then subsiding
to 9 to 12 feet occasionally to 15 feet.
$$
(13/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/11/2026 4:01 AM America/New_York.
Valid through 3/11/2026 4:00 PM America/New_York.
fzus63 kmqt 110801
glfls
expires:202603112000;;001912
open lake forecast for lake superior
national weather service marquette mi
400 am edt wed mar 11 2026
for waters beyond 5 nautical miles of shore on lake superior.
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...
29.6 inch low pressure currently near southern lake michigan moves
through lower michigan today, reaching lake huron at 29.4 inches by
the evening before exiting eastward. thursday, lake superior will be
situated between a 29.3 inch low over the mouth of the st lawrence
river, a 29.4 inch low over north dakota, a 30.3 inch high over the
lower mississippi river valley, and a 30.1 inch ridge over hudson
bay. the dakotas low arrives near the lake friday morning at near
29.2 inches, then moves into southern quebec friday night. a 30.2
inch ridge will then follow across the upper great lakes saturday,
ahead of an approaching 29.5 inch low that deepens to 29.2 inches
over southern michigan sunday evening. monday, the low will move to
the ontario/quebec line while 30.4 inch high pressure overspreads
the northern plains.
lsz263-112000-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
400 am edt wed mar 11 2026
.early this morning...northeast winds 10 to 20 knots. snow
likely. waves 3 to 5 feet occasionally to 7 feet.
.today...north winds 10 to 20 knots backing northwest late. a
chance of snow through early afternoon. waves subsiding to 2 to
4 feet.
.tonight...northwest winds 10 to 20 knots. waves subsiding to
1 to 3 feet.
.thursday...northwest winds 5 to 15 knots becoming west less than
10 knots in the afternoon, then becoming southeast 10 to 20 knots
late. waves subsiding to calm to 2 feet.
.thursday night...east gales to 40 knots. freezing spray. snow
showers likely. waves building to 12 to 17 feet occasionally to
21 feet.
.friday...north gales to 40 knots diminishing to 20 to 30 knots
by mid afternoon. freezing spray. a chance of snow showers. waves
subsiding to 5 to 8 feet occasionally to 10 feet.
.friday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet.
.saturday...southwest winds 5 to 15 knots becoming east 20 to
30 knots. freezing spray. a chance of snow showers. waves
building to 5 to 8 feet occasionally to 10 feet.
.sunday...northeast gales to 40 knots becoming north gales to
45 knots. heavy freezing spray. a chance of snow showers. waves
building to 15 to 20 feet occasionally to 25 feet.
$$
(14/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/11/2026 4:01 AM America/New_York.
Valid through 3/11/2026 4:00 PM America/New_York.
fzus63 kmqt 110801
glfls
expires:202603112000;;001913
open lake forecast for lake superior
national weather service marquette mi
400 am edt wed mar 11 2026
for waters beyond 5 nautical miles of shore on lake superior.
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...
29.6 inch low pressure currently near southern lake michigan moves
through lower michigan today, reaching lake huron at 29.4 inches by
the evening before exiting eastward. thursday, lake superior will be
situated between a 29.3 inch low over the mouth of the st lawrence
river, a 29.4 inch low over north dakota, a 30.3 inch high over the
lower mississippi river valley, and a 30.1 inch ridge over hudson
bay. the dakotas low arrives near the lake friday morning at near
29.2 inches, then moves into southern quebec friday night. a 30.2
inch ridge will then follow across the upper great lakes saturday,
ahead of an approaching 29.5 inch low that deepens to 29.2 inches
over southern michigan sunday evening. monday, the low will move to
the ontario/quebec line while 30.4 inch high pressure overspreads
the northern plains.
lsz264-112000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt wed mar 11 2026
.early this morning...northeast winds 10 to 20 knots. a chance of
snow. waves 3 to 6 feet occasionally to 8 feet.
.today...north winds 15 to 25 knots increasing to 20 to 30 knots
late. freezing spray through early afternoon. a chance of snow.
waves building to 3 to 6 feet occasionally to 8 feet.
.tonight...north winds 20 to 30 knots becoming northwest 15 to
25 knots after midnight. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet.
.thursday...north winds 10 to 20 knots becoming northwest 5 to
15 knots in the afternoon, then backing southeast late. waves
subsiding to calm to 2 feet.
.thursday night...southeast gales to 40 knots becoming east gales
to 45 knots after midnight. freezing spray. a chance of snow
showers through midnight. snow showers likely after midnight.
waves building to 12 to 17 feet occasionally to 21 feet.
.friday...northeast gales to 45 knots becoming north gales to
40 knots by mid afternoon. freezing spray. a chance of snow
showers. waves subsiding to 7 to 10 feet occasionally to 13 feet.
.friday night...north winds 20 to 30 knots diminishing to 10 to
20 knots after midnight. freezing spray through midnight. waves
subsiding to 1 to 3 feet.
.saturday...southwest winds 5 to 15 knots becoming south 20 to
30 knots. freezing spray. waves subsiding to calm to 2 feet, then
building to 5 to 8 feet occasionally to 10 feet.
.sunday...northeast gales to 40 knots becoming north storm force
winds to 55 knots. heavy freezing spray. a chance of snow
showers. waves building to 17 to 22 feet occasionally to 28 feet.
$$
(15/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/11/2026 4:01 AM America/New_York.
Valid through 3/11/2026 4:00 PM America/New_York.
fzus63 kmqt 110801
glfls
expires:202603112000;;001914
open lake forecast for lake superior
national weather service marquette mi
400 am edt wed mar 11 2026
for waters beyond 5 nautical miles of shore on lake superior.
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...
29.6 inch low pressure currently near southern lake michigan moves
through lower michigan today, reaching lake huron at 29.4 inches by
the evening before exiting eastward. thursday, lake superior will be
situated between a 29.3 inch low over the mouth of the st lawrence
river, a 29.4 inch low over north dakota, a 30.3 inch high over the
lower mississippi river valley, and a 30.1 inch ridge over hudson
bay. the dakotas low arrives near the lake friday morning at near
29.2 inches, then moves into southern quebec friday night. a 30.2
inch ridge will then follow across the upper great lakes saturday,
ahead of an approaching 29.5 inch low that deepens to 29.2 inches
over southern michigan sunday evening. monday, the low will move to
the ontario/quebec line while 30.4 inch high pressure overspreads
the northern plains.
lsz265-112000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt wed mar 11 2026
.early this morning...northeast winds 15 to 25 knots. snow. waves
3 to 6 feet occasionally to 8 feet building to 4 to 7 feet
occasionally to 9 feet.
.today...northeast winds 20 to 30 knots becoming north to
30 knots with a few gale force gusts to 35 knots possible in the
afternoon. freezing spray. snow through early afternoon. a chance
of snow by mid afternoon. waves building to 7 to 10 feet
occasionally to 13 feet.
.tonight...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 20 to 30 knots after
midnight. freezing spray. waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.thursday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then backing southeast late. waves
subsiding to calm to 2 feet.
.thursday night...southeast gales to 40 knots becoming east storm
force winds to 50 knots after midnight. freezing spray. a chance
of snow showers through midnight. snow showers likely after
midnight. waves building to 12 to 17 feet occasionally to
21 feet.
.friday...northeast storm force winds to 50 knots becoming north
gales to 45 knots by mid afternoon. freezing spray. snow showers
likely through early afternoon. a chance of snow showers by mid
afternoon. waves subsiding to 10 to 14 feet occasionally to
18 feet.
.friday night...northwest gales to 35 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 2 to
4 feet.
.saturday...west winds 10 to 20 knots becoming southeast 20 to
30 knots. freezing spray. a chance of snow showers. waves
subsiding to calm to 2 feet, then building to 5 to 8 feet
occasionally to 10 feet.
.sunday...northeast gales to 40 knots becoming north storm force
winds to 55 knots. heavy freezing spray. a chance of snow
showers. waves building to 20 to 25 feet occasionally to 31 feet.
$$
(16/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/11/2026 4:01 AM America/New_York.
Valid through 3/11/2026 4:00 PM America/New_York.
fzus63 kmqt 110801
glfls
expires:202603112000;;001915
open lake forecast for lake superior
national weather service marquette mi
400 am edt wed mar 11 2026
for waters beyond 5 nautical miles of shore on lake superior.
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...
29.6 inch low pressure currently near southern lake michigan moves
through lower michigan today, reaching lake huron at 29.4 inches by
the evening before exiting eastward. thursday, lake superior will be
situated between a 29.3 inch low over the mouth of the st lawrence
river, a 29.4 inch low over north dakota, a 30.3 inch high over the
lower mississippi river valley, and a 30.1 inch ridge over hudson
bay. the dakotas low arrives near the lake friday morning at near
29.2 inches, then moves into southern quebec friday night. a 30.2
inch ridge will then follow across the upper great lakes saturday,
ahead of an approaching 29.5 inch low that deepens to 29.2 inches
over southern michigan sunday evening. monday, the low will move to
the ontario/quebec line while 30.4 inch high pressure overspreads
the northern plains.
lsz266-112000-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
400 am edt wed mar 11 2026
.early this morning...northeast winds 20 to 30 knots. freezing
spray. snow. waves 3 to 6 feet occasionally to 8 feet building to
4 to 7 feet occasionally to 9 feet.
.today...northeast winds 20 to 30 knots backing north in the
afternoon, then increasing to 30 knots with a few gale force
gusts to 35 knots possible late. freezing spray. snow. waves
building to 8 to 11 feet occasionally to 14 feet.
.tonight...north winds to 30 knots with a few gale force gusts to
35 knots possible becoming northwest 20 to 30 knots late. a
chance of snow showers through midnight. freezing spray. waves
building to 9 to 12 feet occasionally to 15 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet.
.thursday...north winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon, then backing southeast late. freezing
spray through early afternoon. waves subsiding to 1 to 3 feet.
.thursday night...southeast gales to 40 knots becoming east gales
to 45 knots after midnight. freezing spray. a chance of snow
showers through midnight. snow showers likely after midnight.
waves building to 12 to 17 feet occasionally to 21 feet.
.friday...east gales to 45 knots backing north by mid afternoon.
freezing spray. snow showers likely through early afternoon. a
chance of snow showers by mid afternoon. waves subsiding to 11 to
15 feet occasionally to 19 feet.
.friday night...north gales to 40 knots diminishing to 20 to
30 knots after midnight. freezing spray. waves subsiding to 3 to
6 feet occasionally to 8 feet.
.saturday...northwest winds 10 to 20 knots becoming south 20 to
30 knots. freezing spray. waves subsiding to calm to 2 feet, then
building to 5 to 8 feet occasionally to 10 feet.
.sunday...northeast gales to 45 knots becoming north storm force
winds to 60 knots. heavy freezing spray. a chance of snow
showers. waves building to 22 to 27 feet occasionally to 34 feet.
$$
(17/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/11/2026 4:01 AM America/New_York.
Valid through 3/11/2026 4:00 PM America/New_York.
fzus63 kmqt 110801
glfls
expires:202603112000;;001916
open lake forecast for lake superior
national weather service marquette mi
400 am edt wed mar 11 2026
for waters beyond 5 nautical miles of shore on lake superior.
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...
29.6 inch low pressure currently near southern lake michigan moves
through lower michigan today, reaching lake huron at 29.4 inches by
the evening before exiting eastward. thursday, lake superior will be
situated between a 29.3 inch low over the mouth of the st lawrence
river, a 29.4 inch low over north dakota, a 30.3 inch high over the
lower mississippi river valley, and a 30.1 inch ridge over hudson
bay. the dakotas low arrives near the lake friday morning at near
29.2 inches, then moves into southern quebec friday night. a 30.2
inch ridge will then follow across the upper great lakes saturday,
ahead of an approaching 29.5 inch low that deepens to 29.2 inches
over southern michigan sunday evening. monday, the low will move to
the ontario/quebec line while 30.4 inch high pressure overspreads
the northern plains.
lsz267-112000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt wed mar 11 2026
.early this morning...northeast winds 20 to 30 knots. snow. waves
3 to 5 feet occasionally to 7 feet.
.today...northeast winds 15 to 25 knots becoming north 20 to
30 knots in the afternoon. freezing spray. snow. waves building
to 5 to 8 feet occasionally to 10 feet.
.tonight...north winds to 30 knots with a few gale force gusts to
35 knots possible diminishing to 20 to 30 knots late. a chance of
snow showers through midnight. freezing spray. waves building to
7 to 10 feet occasionally to 13 feet, then subsiding to 5 to
8 feet occasionally to 10 feet.
.thursday...north winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then becoming northwest 5 to 15 knots
late. waves subsiding to calm to 2 feet.
.thursday night...southeast gales to 35 knots becoming east gales
to 45 knots after midnight. a slight chance of snow showers
through midnight, then snow showers likely after midnight. heavy
freezing spray after midnight. waves building to 10 to 14 feet
occasionally to 18 feet.
.friday...east gales to 45 knots backing north by mid afternoon.
freezing spray. snow showers likely through early afternoon. a
chance of snow showers by mid afternoon. waves subsiding to 9 to
12 feet occasionally to 15 feet, then building to 10 to 14 feet
occasionally to 18 feet.
.friday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 3 to
6 feet occasionally to 8 feet.
.saturday...northwest winds 10 to 20 knots becoming southeast
20 to 30 knots. freezing spray. a chance of snow showers. waves
subsiding to calm to 2 feet, then building to 3 to 6 feet
occasionally to 8 feet.
.sunday...east gales to 40 knots becoming north storm force winds
to 55 knots. heavy freezing spray. a chance of snow showers. snow
showers likely. waves building to 15 to 20 feet occasionally to
25 feet.
$$
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