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(1/17)
Latest Great Lakes Marine Forecast by KBUF
Issued 3/14/2026 10:04 PM America/New_York.
Valid through 3/15/2026 5:00 AM America/New_York.
fzus61 kbuf 150204
glflo
expires:202603150900;;688612
open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt sat mar 14 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 29.5 inch low will exit across the canadian maritimes
this evening as a 30.4 inch high builds into the central great
lakes, then across the lake tonight before moving 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, before pushing
northeastward across quebec through tuesday. this low will sweep a
strong cold front across the lake monday afternoon, with a 30.4 inch
high building across the great lakes and ohio valley tuesday. the
high will then shift east of the lake wednesday and reach the east
coast by wednesday evening.
loz062-150900-
lake ontario open waters from the niagara river to hamlin beach-
1003 pm edt sat mar 14 2026
...gale watch in effect from monday afternoon through tuesday
morning...
.overnight...north winds 5 to 15 knots becoming east. a
chance of snow showers late. waves 1 to 3 feet.
.sunday...east winds 15 to 20 knots increasing to 30 knots. snow
likely in the morning. waves 2 to 4 feet building to 5 to 8 feet.
waves occasionally around 10 feet.
.sunday night...southeast winds to 30 knots. waves 5 to 8 feet.
waves occasionally around 10 feet.
.monday...southeast winds to 30 knots becoming southwest. rain
showers in the morning, then rain and snow showers in the
afternoon. waves 5 to 8 feet building to 7 to 10 feet. waves
occasionally around 13 feet.
.monday night...southwest gales to 35 knots becoming west. snow
and rain showers in the evening, then a chance of snow showers
overnight. waves 10 to 14 feet building to 11 to 15 feet. waves
occasionally around 19 feet.
.tuesday...west gales to 35 knots diminishing to 15 to 20 knots.
a chance of snow showers. waves 10 to 15 feet subsiding to 4 to
7 feet. waves occasionally around 19 feet.
.wednesday...southwest winds 10 to 15 knots becoming south. waves
2 to 4 feet subsiding to 1 to 2 feet.
.thursday...south winds 5 to 15 knots becoming southwest. a
chance of rain showers thursday night. waves 1 to 2 feet.
$$
(2/17)
Latest Great Lakes Marine Forecast by KBUF
Issued 3/14/2026 10:04 PM America/New_York.
Valid through 3/15/2026 5:00 AM America/New_York.
fzus61 kbuf 150204
glflo
expires:202603150900;;688613
open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt sat mar 14 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 29.5 inch low will exit across the canadian maritimes
this evening as a 30.4 inch high builds into the central great
lakes, then across the lake tonight before moving 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, before pushing
northeastward across quebec through tuesday. this low will sweep a
strong cold front across the lake monday afternoon, with a 30.4 inch
high building across the great lakes and ohio valley tuesday. the
high will then shift east of the lake wednesday and reach the east
coast by wednesday evening.
loz063>065-150900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 pm edt sat mar 14 2026
...gale watch in effect from monday evening through tuesday
evening...
.overnight...northwest winds 5 to 15 knots becoming east.
waves 4 to 7 feet subsiding to 1 to 3 feet. waves occasionally
around 9 feet.
.sunday...southeast winds 15 to 25 knots. snow likely in the
morning. waves 1 to 3 feet building to 4 to 7 feet. waves
occasionally around 9 feet.
.sunday night...southeast winds to 30 knots increasing to 35 knot
gales. waves 5 to 8 feet building to 7 to 10 feet. waves
occasionally around 13 feet.
.monday...southeast gales to 35 knots becoming southwest and
diminishing to 30 knots in the afternoon. showers. waves 6 to
10 feet subsiding to 5 to 8 feet. waves occasionally around
13 feet.
.monday night...west winds to 30 knots increasing to 40 knot
gales. rain and snow showers in the evening, then snow showers
overnight. waves 7 to 10 feet building to 11 to 16 feet. waves
occasionally around 20 feet.
.tuesday...west gales to 40 knots becoming northwest and
diminishing to 15 to 25 knots. lake effect snow showers. waves
13 to 17 feet subsiding to 7 to 10 feet. waves occasionally
around 22 feet.
.wednesday...west winds 5 to 15 knots becoming south 15 to
20 knots. waves 3 to 6 feet subsiding to 3 to 5 feet.
.thursday...south winds 15 to 20 knots becoming southwest. a
chance of rain showers thursday night. waves 3 to 5 feet
subsiding to 2 to 4 feet.
$$
(3/17)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/14/2026 9:39 PM America/New_York.
Valid through 3/15/2026 4:30 AM America/New_York.
fzus61 kcle 150139
glfle
expires:202603150830;;687975
open lake forecast for lake erie
national weather service cleveland oh
939 pm edt sat mar 14 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 high pressure ridge averaging 30.00 inches continues to exit
eastward from the lake erie region. on sunday, warm front sweeps
northward across lake erie before a strong cold front sweeps
eastward across the lake sunday night through monday morning.
simultaneously, a potent low should track northeastward from the
mid missouri valley to northern lake huron and deepen to 28.90
inches. during monday afternoon through monday night, a trough
averaging 29.90 inches should linger over lake erie as the low
moves north-northeastward toward northern quebec and deepens
further to 28.60 inches. on tuesday through tuesday night, a ridge
averaging 30.30 inches should build from the upper midwest before
exiting slowly eastward from the lake erie region this wednesday
through thursday. on the backside of the ridge, a warm front
should sweep northward across lake erie on wednesday.
lez165>167-150830-
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-
939 pm edt sat mar 14 2026
...gale watch in effect from monday morning through tuesday
morning...
.rest of tonight...east winds 10 to 15 knots increasing to 15 to
20 knots. a slight chance of snow showers late this evening, then
a chance of snow showers after midnight. waves 1 foot or less
building to 2 to 4 feet.
.sunday...east winds 15 to 25 knots becoming south. waves 3 to
6 feet.
.sunday night...south winds to 30 knots. showers likely
overnight. waves 5 to 8 feet. waves occasionally around 10 feet.
.monday...south winds to 30 knots becoming southwest and
increasing to 35 knot gales in the afternoon. rain showers likely
in the morning, then a chance of rain showers in the afternoon.
waves 5 to 8 feet building to 10 to 13 feet. waves occasionally
around 16 feet.
.monday night...west gales to 35 knots. a chance of snow showers.
waves 9 to 13 feet. waves occasionally around 16 feet.
.tuesday...west winds to 30 knots diminishing to 15 to 25 knots.
a chance of snow showers during the day. waves 8 to 11 feet
subsiding to 3 to 6 feet. waves occasionally around 14 feet.
.wednesday...south winds 15 to 20 knots. a chance of snow during
the day. waves 2 to 4 feet subsiding to 1 to 3 feet.
.thursday...south winds 5 to 15 knots becoming southwest. waves
1 to 3 feet.
$$
(4/17)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/14/2026 9:39 PM America/New_York.
Valid through 3/15/2026 4:30 AM America/New_York.
fzus61 kcle 150139
glfle
expires:202603150830;;687976
open lake forecast for lake erie
national weather service cleveland oh
939 pm edt sat mar 14 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 high pressure ridge averaging 30.00 inches continues to exit
eastward from the lake erie region. on sunday, warm front sweeps
northward across lake erie before a strong cold front sweeps
eastward across the lake sunday night through monday morning.
simultaneously, a potent low should track northeastward from the
mid missouri valley to northern lake huron and deepen to 28.90
inches. during monday afternoon through monday night, a trough
averaging 29.90 inches should linger over lake erie as the low
moves north-northeastward toward northern quebec and deepens
further to 28.60 inches. on tuesday through tuesday night, a ridge
averaging 30.30 inches should build from the upper midwest before
exiting slowly eastward from the lake erie region this wednesday
through thursday. on the backside of the ridge, a warm front
should sweep northward across lake erie on wednesday.
lez061-168-169-150830-
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-
939 pm edt sat mar 14 2026
...gale watch in effect from monday morning through tuesday
morning...
.rest of tonight...southeast winds 10 knots or less becoming east
10 to 15 knots. a chance of snow showers after midnight. waves
2 feet or less.
.sunday...east winds 15 to 25 knots becoming south. a slight
chance of snow showers early. waves 1 to 3 feet building to 3 to
5 feet.
.sunday night...south winds to 30 knots. a chance of showers
overnight. waves 3 to 6 feet building to 5 to 8 feet. waves
occasionally around 10 feet.
.monday...south winds to 30 knots becoming southwest and
increasing to 35 knot gales in the afternoon. rain showers in the
morning, then a chance of rain and snow showers in the afternoon.
waves 4 to 7 feet building to 9 to 12 feet. waves occasionally
around 15 feet.
.monday night...west gales to 35 knots. a chance of snow showers.
waves 10 to 13 feet. waves occasionally around 16 feet.
.tuesday...west winds to 30 knots diminishing to 10 to 15 knots.
a chance of snow showers during the day. waves 9 to 12 feet
subsiding to 2 to 4 feet. waves occasionally around 15 feet.
.wednesday...southwest winds 5 to 15 knots becoming south. waves
2 to 4 feet subsiding to 1 to 3 feet.
.thursday...south winds 5 to 10 knots becoming southwest. waves
1 foot or less.
$$
(5/17)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/14/2026 9:39 PM America/New_York.
Valid through 3/15/2026 4:30 AM America/New_York.
fzus61 kcle 150139
glfle
expires:202603150830;;687974
open lake forecast for lake erie
national weather service cleveland oh
939 pm edt sat mar 14 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 high pressure ridge averaging 30.00 inches continues to exit
eastward from the lake erie region. on sunday, warm front sweeps
northward across lake erie before a strong cold front sweeps
eastward across the lake sunday night through monday morning.
simultaneously, a potent low should track northeastward from the
mid missouri valley to northern lake huron and deepen to 28.90
inches. during monday afternoon through monday night, a trough
averaging 29.90 inches should linger over lake erie as the low
moves north-northeastward toward northern quebec and deepens
further to 28.60 inches. on tuesday through tuesday night, a ridge
averaging 30.30 inches should build from the upper midwest before
exiting slowly eastward from the lake erie region this wednesday
through thursday. on the backside of the ridge, a warm front
should sweep northward across lake erie on wednesday.
lez162>164-150830-
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-
939 pm edt sat mar 14 2026
...gale watch in effect from monday morning through tuesday
morning...
.rest of tonight...east winds 10 to 15 knots increasing to 15 to
25 knots. a chance of snow showers, then a slight chance of snow
showers late. waves 2 feet or less building to 3 to 5 feet.
.sunday...east winds 15 to 25 knots becoming south. waves 3 to
5 feet.
.sunday night...south winds to 30 knots. a chance of showers in
the evening, then showers overnight. waves 3 to 6 feet building
to 4 to 7 feet. waves occasionally around 9 feet.
.monday...southwest winds to 30 knots becoming west and
increasing to 35 knot gales in the afternoon. rain showers in the
morning. waves 5 to 8 feet. waves occasionally around 10 feet.
.monday night...west gales to 35 knots diminishing to 30 knots. a
chance of snow showers. waves 5 to 8 feet. waves occasionally
around 10 feet.
.tuesday...west winds to 30 knots becoming southwest and
diminishing to 10 to 15 knots. waves 4 to 7 feet subsiding to
1 to 3 feet. waves occasionally around 9 feet.
.wednesday...south winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of snow during the day. waves 1 to 3 feet.
.thursday...southwest winds 5 to 15 knots. waves 2 feet or less.
$$
(6/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/14/2026 9:57 PM America/New_York.
Valid through 3/15/2026 6:00 AM America/New_York.
fzus63 kdtx 150157
glflh
expires:202603151000;;688323
open lake forecast for lake huron
national weather service detroit/pontiac mi
957 pm edt sat mar 14 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, 28.90 inches, moves
across southern michigan and lake huron sunday into monday. this
brings unsettled weather included gust to gales through the early
week period. gale warnings are in effect for the eastern great
lakes.
lhz361-362-151000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
957 pm edt sat mar 14 2026
...gale warning in effect from 8 am edt sunday through tuesday
afternoon...
.rest of tonight...southeast winds 5 to 10 knots increasing to
15 to 20 knots. a chance of snow after midnight. waves 1 to
3 feet building to 3 to 5 feet early in the morning.
.sunday...east winds 20 to 25 knots increasing to 35 knot gales
with gusts to 40 knot gales. snow in the morning...then snow
showers...freezing rain and a chance of showers in the afternoon.
snow may be heavy at times in the morning. waves 5 to 7 feet
building to 12 to 16 feet. waves occasionally around 20 feet.
.sunday night...northeast winds to 30 knots decreasing to 20 to
25 knots after midnight. gusts to 40 knot gales. showers...
freezing rain and sleet in the evening...then showers and
freezing rain after midnight. precipitation may be heavy at
times. waves 12 to 16 feet. waves occasionally around 20 feet.
.monday...south winds 20 to 25 knots increasing to 30 knots in
the late morning and afternoon. gusts to 35 knot gales. showers...
a chance of snow and freezing rain in the morning...then a chance
of snow in the afternoon. waves 10 to 14 feet. waves occasionally
around 18 feet.
.monday night...west winds to 30 knots increasing to 35 knot
gales in the late evening and overnight. gusts to 40 knot gales.
a chance of snow. heavy freezing spray. waves 12 to 16 feet.
waves occasionally around 20 feet. a gale warning may be needed.
.tuesday...northwest winds to 30 knots with gusts to 40 knot
gales becoming west 10 to 15 knots. heavy freezing spray. waves
12 to 16 feet subsiding to 5 to 7 feet late in the afternoon.
waves occasionally around 20 feet.
.wednesday...south winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and early afternoon...then
decreasing to 15 to 20 knots . a chance of snow early in the
morning. waves 4 to 6 feet building to 6 to 9 feet. waves
occasionally around 12 feet.
.thursday...southwest winds 10 to 15 knots. waves 4 to 6 feet.
waves occasionally around 8 feet.
$$
(7/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/14/2026 9:57 PM America/New_York.
Valid through 3/15/2026 6:00 AM America/New_York.
fzus63 kdtx 150157
glflh
expires:202603151000;;688324
open lake forecast for lake huron
national weather service detroit/pontiac mi
957 pm edt sat mar 14 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, 28.90 inches, moves
across southern michigan and lake huron sunday into monday. this
brings unsettled weather included gust to gales through the early
week period. gale warnings are in effect for the eastern great
lakes.
lhz363-462>464-151000-
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-
957 pm edt sat mar 14 2026
...gale warning in effect from sunday evening through tuesday
afternoon...
.rest of tonight...east winds 10 to 15 knots increasing to 15 to
20 knots early in the morning. a chance of snow after midnight.
waves 1 to 3 feet building to 3 to 5 feet early in the morning.
.sunday...east winds 20 to 25 knots increasing to 30 knots late
in the morning...then decreasing to 20 to 25 knots in the
afternoon. gusts to 35 knot gales. snow likely...a chance of rain
and sleet in the morning...then a chance of showers...snow and
sleet in the afternoon. waves 8 to 12 feet. waves occasionally
around 15 feet.
.sunday night...southeast winds 20 to 25 knots becoming south to
30 knots in the late evening and overnight. gusts to 40 knot
gales. a chance of showers and thunderstorms in the evening...
then showers and a chance of thunderstorms after midnight. waves
10 to 14 feet. waves occasionally around 18 feet.
.monday...south winds 20 to 25 knots becoming southwest to
30 knots in the late morning and afternoon. gusts to 40 knot
gales. showers and a chance of snow in the morning. waves 10 to
14 feet. waves occasionally around 18 feet.
.monday night...southwest winds to 30 knots becoming west at
35 knot gales in the late evening and overnight. gusts to 40 knot
gales. a chance of snow. heavy freezing spray. waves 12 to
16 feet. waves occasionally around 20 feet. a gale warning may be
needed.
.tuesday...west winds to 30 knots with gusts to 40 knot gales
decreasing to 10 to 15 knots. heavy freezing spray. waves 12 to
16 feet subsiding to 4 to 6 feet. waves occasionally around
20 feet.
.wednesday...south winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and early afternoon...then
decreasing to 15 to 20 knots . waves 5 to 7 feet. waves
occasionally around 10 feet.
.thursday...south winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then increasing to 10 to 15 knots
by midnight. waves 3 to 5 feet subsiding to 2 to 4 feet .
$$
(8/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/14/2026 9:57 PM America/New_York.
Valid through 3/15/2026 6:00 AM America/New_York.
fzus63 kdtx 150157
glfsc
expires:202603151000;;688337
lake st clair forecast
national weather service detroit/pontiac mi
957 pm edt sat mar 14 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, 28.90 inches, moves
across southern michigan and lake huron late tonight into monday.
this brings unsettled weather included gust to gales through the
early week period. gale warnings are in effect for the eastern
great lakes.
lcz460-151000-
lake st clair-
957 pm edt sat mar 14 2026
...small craft advisory in effect from sunday morning through
late sunday night...
...gale warning in effect from late sunday night through tuesday
afternoon...
.rest of tonight...southeast winds 10 to 15 knots becoming east 15
to 20 knots after midnight. cloudy. a chance of light snow after
midnight. light snow likely early in the morning. waves 1 to 3 feet.
.sunday...east winds 20 to 25 knots with gusts to 30 knots becoming
southeast 15 to 20 knots early in the afternoon...then becoming
south 20 to 25 knots with gusts to 30 knots late in the afternoon.
cloudy. a chance of light snow early in the morning. waves 2 to 4
feet.
.sunday night...south winds 20 to 25 knots increasing to 30 knots in
the late evening and overnight. gusts to 35 knot gales. a chance of
showers. a chance of thunderstorms in the late evening and
overnight. rain showers after midnight. waves 3 to 5 feet. waves
occasionally around 7 feet.
.monday...southwest winds to 30 knots with gusts to 35 knot gales.
showers early in the morning...then a chance of light rain and snow
in the late morning and early afternoon. waves 3 to 5 feet. waves
occasionally around 7 feet.
.monday night...west winds to 30 knots diminishing to 20 to 25 knots
in the late evening and overnight. gusts to 35 knot gales. mostly
cloudy. waves 3 to 5 feet. waves occasionally around 7 feet.
.tuesday...west winds 20 to 25 knots diminishing to 10 to 15 knots.
mostly cloudy becoming partly cloudy. waves 2 to 4 feet subsiding to
1 to 3 feet in the afternoon and evening.
.wednesday...south winds 15 to 20 knots. mostly cloudy with a chance
of light snow. waves 1 to 3 feet.
.thursday...southwest winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
$$
(9/17)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/15/2026 12:06 AM US/Central.
Valid through 3/15/2026 4:15 AM US/Central.
fzus63 kmkx 150506
glflm
expires:202603150915;;695106
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1206 am cdt sun mar 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...
deepening low pressure of 29.4 inches over southeastern nebraska
will swing northeastward through this morning into southern
wisconsin, bringing easterly to southeasterly gales across the
lake this morning into midday. as low pressure crosses southern
lake michigan this evening, winds will briefly lower across the
southern two thirds, while northerly storm force winds develop
across the northern third. northerly storm force winds will
spread southward through the middle third of lake michigan as low
pressure deepens to 29.1 inches over lower michigan this evening,
while gales continue across the southern third.
winds shift to northwesterly into monday morning, with storm
force winds across the northern two thirds and gales across the
southern third through monday evening. expect winds to slowly
diminish as low pressure exits monday night into tuesday morning.
heavy freezing spray is also expected to develop monday morning as
arctic air pushes southward through the lake, continuing through
midday tuesday. winds then shift to southeasterly ahead of an
approaching weak low around 29.7 inches tuesday afternoon into
tuesday night.
heavy snow is expected across the northern half of the lake
throughout today, transitioning to sleet and freezing rain this
afternoon. a few thunderstorms are possible across the southern
half of the lake this afternoon. freezing rain and sleet will then
spread through the remainder of the lake overnight as
thunderstorms end, with a return to heavy snow into monday
morning. snow will taper off midday monday.
lmz080-673-675-777-779-874-876-878-150915-
lake michigan from michigan city in to st. joseph mi 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 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-
1206 am cdt sun mar 15 2026
north point light wi to grand haven mi south...
...gale warning in effect through tuesday morning...
...heavy freezing spray warning in effect from late tonight
through tuesday morning...
.rest of tonight...east winds to 30 kt becoming southeast gales
to 40 kt late. chance of rain and snow. waves 4 to 7 ft
occasionally to 9 ft building to 7 to 10 ft occasionally to
13 ft.
.sunday...southeast gales to 35 kt becoming south gales to 40 kt.
slight chance of rain in the morning, then chance of rain and
slight chance of thunderstorms in the afternoon. waves 8 to 11 ft
occasionally to 14 ft subsiding to 7 to 10 ft occasionally to
13 ft.
.sunday night...southwest gales to 40 kt veering to northwest
gales to 45 kt. rain in the evening, then snow likely with a
chance of rain overnight. waves 7 to 10 ft occasionally to 13 ft
building to 18 to 23 ft occasionally to 30 ft.
.monday...northwest gales to 45 kt. freezing spray. snow. waves
18 to 23 ft occasionally to 30 ft.
.monday night...northwest gales to 40 kt diminishing to gales to
35 kt. chance of snow in the evening. freezing spray. waves 15 to
20 ft occasionally to 26 ft subsiding to 14 to 18 ft occasionally
to 23 ft.
.tuesday...northwest winds to 30 kt becoming west 15 to 25 kt.
freezing spray. waves 10 to 14 ft occasionally to 18 ft subsiding
to 6 to 9 ft occasionally to 12 ft.
.tuesday night...southwest winds 10 to 20 kt becoming south to
30 kt. waves 3 to 5 ft building to 6 to 9 ft occasionally to
12 ft.
.wednesday...south winds to 30 kt diminishing to 15 to 25 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 6 to 9 ft
occasionally to 12 ft.
.thursday...southwest winds 10 to 15 kt becoming south. waves
1 to 3 ft.
$$
(10/17)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/15/2026 12:06 AM US/Central.
Valid through 3/15/2026 4:15 AM US/Central.
fzus63 kmkx 150506
glflm
expires:202603150915;;695104
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1206 am cdt sun mar 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...
deepening low pressure of 29.4 inches over southeastern nebraska
will swing northeastward through this morning into southern
wisconsin, bringing easterly to southeasterly gales across the
lake this morning into midday. as low pressure crosses southern
lake michigan this evening, winds will briefly lower across the
southern two thirds, while northerly storm force winds develop
across the northern third. northerly storm force winds will
spread southward through the middle third of lake michigan as low
pressure deepens to 29.1 inches over lower michigan this evening,
while gales continue across the southern third.
winds shift to northwesterly into monday morning, with storm
force winds across the northern two thirds and gales across the
southern third through monday evening. expect winds to slowly
diminish as low pressure exits monday night into tuesday morning.
heavy freezing spray is also expected to develop monday morning as
arctic air pushes southward through the lake, continuing through
midday tuesday. winds then shift to southeasterly ahead of an
approaching weak low around 29.7 inches tuesday afternoon into
tuesday night.
heavy snow is expected across the northern half of the lake
throughout today, transitioning to sleet and freezing rain this
afternoon. a few thunderstorms are possible across the southern
half of the lake this afternoon. freezing rain and sleet will then
spread through the remainder of the lake overnight as
thunderstorms end, with a return to heavy snow into monday
morning. snow will taper off midday monday.
lmz261-362-364-366-563-565-567-868-150915-
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-
1206 am cdt sun mar 15 2026
sheboygan wi to pentwater mi north...
...gale warning in effect through this evening...
...storm warning in effect from this evening through monday
evening...
...heavy freezing spray warning in effect from late tonight
through tuesday morning...
.rest of tonight...east winds to 30 kt increasing to gales to
35 kt. snow. waves 3 to 5 ft building to 5 to 8 ft occasionally
to 10 ft.
.sunday...east gales to 40 kt increasing to gales to 45 kt late
in the morning, then increasing to storm force winds to 50 kt
early in the afternoon becoming northeast late. visibility one
quarter mile or less at times. snow, sleet, chance of rain and
freezing rain in the morning, then snow, rain, sleet and slight
chance of freezing rain in the afternoon. waves 7 to 10 ft
occasionally to 13 ft building to 12 to 16 ft occasionally to
21 ft.
.sunday night...northeast storm force winds to 50 kt becoming
north. visibility one quarter mile or less at times. sleet, rain
and snow in the evening, then snow, light sleet and freezing rain
with rain likely overnight. waves 18 to 23 ft occasionally to
30 ft.
.monday...north storm force winds to 50 kt becoming northwest
storm force winds to 50 kt. visibility one quarter mile or less
at times. snow in the morning, then snow likely in the afternoon.
waves 18 to 23 ft occasionally to 30 ft.
.monday night...northwest storm force winds to 50 kt diminishing
to gales to 40 kt overnight. chance of snow. visibility one
quarter mile or less at times in the evening. waves 15 to 20 ft
occasionally to 26 ft.
.tuesday...northwest gales to 35 kt becoming west 15 to 25 kt in
the afternoon. heavy freezing spray in the morning. waves 8 to
12 ft occasionally to 16 ft subsiding to 4 to 7 ft occasionally
to 9 ft.
.tuesday night...southwest winds 10 to 20 kt becoming south to
30 kt. freezing spray. chance of snow. waves 2 to 4 ft building
to 6 to 9 ft occasionally to 12 ft.
.wednesday...south winds to 30 kt diminishing to 15 to 25 kt.
freezing spray. chance of snow. waves 8 to 11 ft occasionally to
14 ft.
.thursday...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft.
$$
(11/17)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/15/2026 12:06 AM US/Central.
Valid through 3/15/2026 4:15 AM US/Central.
fzus63 kmkx 150506
glflm
expires:202603150915;;695105
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1206 am cdt sun mar 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...
deepening low pressure of 29.4 inches over southeastern nebraska
will swing northeastward through this morning into southern
wisconsin, bringing easterly to southeasterly gales across the
lake this morning into midday. as low pressure crosses southern
lake michigan this evening, winds will briefly lower across the
southern two thirds, while northerly storm force winds develop
across the northern third. northerly storm force winds will
spread southward through the middle third of lake michigan as low
pressure deepens to 29.1 inches over lower michigan this evening,
while gales continue across the southern third.
winds shift to northwesterly into monday morning, with storm
force winds across the northern two thirds and gales across the
southern third through monday evening. expect winds to slowly
diminish as low pressure exits monday night into tuesday morning.
heavy freezing spray is also expected to develop monday morning as
arctic air pushes southward through the lake, continuing through
midday tuesday. winds then shift to southeasterly ahead of an
approaching weak low around 29.7 inches tuesday afternoon into
tuesday night.
heavy snow is expected across the northern half of the lake
throughout today, transitioning to sleet and freezing rain this
afternoon. a few thunderstorms are possible across the southern
half of the lake this afternoon. freezing rain and sleet will then
spread through the remainder of the lake overnight as
thunderstorms end, with a return to heavy snow into monday
morning. snow will taper off midday monday.
lmz669-671-870-872-150915-
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 whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
1206 am cdt sun mar 15 2026
sheboygan wi to pentwater mi south to north point light wi to
grand haven mi...
...gale warning in effect through this evening...
...storm warning in effect from this evening through monday
evening...
...heavy freezing spray warning in effect from late tonight
through tuesday morning...
.rest of tonight...east winds to 30 kt increasing to gales to
40 kt late. snow, rain and light sleet likely. waves 4 to 7 ft
occasionally to 9 ft building to 7 to 10 ft occasionally to
13 ft.
.sunday...southeast gales to 40 kt. chance of rain in the
morning, then rain and slight chance of thunderstorms in the
afternoon. waves 8 to 12 ft occasionally to 16 ft subsiding to
7 to 10 ft occasionally to 13 ft.
.sunday night...north gales to 45 kt increasing to storm force
winds to 50 kt. rain in the evening, then snow, rain and light
sleet likely overnight. waves 12 to 16 ft occasionally to 21 ft
building to 18 to 23 ft occasionally to 30 ft.
.monday...northwest storm force winds to 50 kt diminishing to
gales to 45 kt. freezing spray in the morning, then heavy
freezing spray in the afternoon. snow. waves 18 to 23 ft
occasionally to 30 ft.
.monday night...northwest gales to 45 kt diminishing to gales to
35 kt overnight. chance of snow in the evening. heavy freezing
spray. waves 15 to 20 ft occasionally to 26 ft subsiding to 14 to
18 ft occasionally to 23 ft.
.tuesday...northwest winds to 30 kt becoming west 15 to 25 kt.
heavy freezing spray in the morning, then freezing spray in the
afternoon. waves 10 to 14 ft occasionally to 18 ft subsiding to
5 to 8 ft occasionally to 10 ft.
.tuesday night...southwest winds 10 to 20 kt becoming south to
30 kt. freezing spray. waves 3 to 5 ft building to 6 to 9 ft
occasionally to 12 ft.
.wednesday...south winds to 30 kt diminishing to 15 to 25 kt.
freezing spray. chance of snow. waves 8 to 11 ft occasionally to
14 ft.
.thursday...southwest winds 10 to 20 kt becoming south 10 to
15 kt. waves 2 to 4 ft.
$$
(12/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/14/2026 10:01 PM America/New_York.
Valid through 3/15/2026 4:00 AM America/New_York.
fzus63 kmqt 150201
glfls
expires:202603150800;;688412
open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat mar 14 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...
a 30.2 inch ridge extends over lake superior tonight ahead of a 29.2
inch low developing over the central plains. this low tracks through
lower michigan sunday night to northern lake huron at 29.0 inches by
monday morning before lifting into canada monday evening. high
pressure of around 30.4 inches then overspreads the northern plains
on monday and moves over lake superior at 30.1 inches by tuesday. a
weakening clipper low around 29.7 inches then moves over northern
ontario late wednesday.
lsz267-150800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt sat mar 14 2026
...gale warning in effect from sunday morning through sunday
evening...
...storm warning in effect from sunday evening through late
monday night...
...heavy freezing spray warning in effect from sunday evening
through tuesday afternoon...
.rest of tonight...south winds 10 to 20 knots becoming southeast
15 to 25 knots late. a chance of snow after midnight. waves calm
to 2 feet building to 2 to 4 feet.
.sunday...east winds 20 to 30 knots increasing to gales to
40 knots in the afternoon, then becoming northeast storm force
winds to 55 knots late. freezing spray. snow. waves building to
10 to 14 feet occasionally to 18 feet.
.sunday night...northeast storm force winds to 60 knots
increasing to storm force winds to 60 knots with a few hurricane
force gusts to 65 knots possible late. heavy freezing spray.
snow. waves building to 17 to 22 feet occasionally to 28 feet.
.monday...north hurricane force winds to 65 knots diminishing to
storm force winds to 60 knots by mid afternoon. heavy freezing
spray. snow. waves building to 20 to 25 feet occasionally to
31 feet.
.monday night...north storm force winds to 55 knots diminishing
to gales to 45 knots after midnight. heavy freezing spray. snow
showers likely through midnight. a chance of snow showers after
midnight. waves subsiding to 11 to 15 feet occasionally to
19 feet.
.tuesday...north gales to 35 knots becoming northwest 15 to
25 knots by mid afternoon. heavy freezing spray. waves subsiding
to 3 to 5 feet occasionally to 7 feet.
.tuesday night...west winds 10 to 20 knots becoming south 15 to
25 knots after midnight. waves subsiding to 2 to 4 feet, then
building to 3 to 6 feet occasionally to 8 feet.
.wednesday...south winds 15 to 25 knots. freezing spray. a chance
of snow showers. waves subsiding to 2 to 4 feet, then building to
3 to 6 feet occasionally to 8 feet.
.thursday...southwest winds 15 to 25 knots veering west. waves
subsiding to 2 to 4 feet, then building to 5 to 8 feet
occasionally to 10 feet.
$$
(13/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/14/2026 10:01 PM America/New_York.
Valid through 3/15/2026 4:00 AM America/New_York.
fzus63 kmqt 150201
glfls
expires:202603150800;;688409
open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat mar 14 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...
a 30.2 inch ridge extends over lake superior tonight ahead of a 29.2
inch low developing over the central plains. this low tracks through
lower michigan sunday night to northern lake huron at 29.0 inches by
monday morning before lifting into canada monday evening. high
pressure of around 30.4 inches then overspreads the northern plains
on monday and moves over lake superior at 30.1 inches by tuesday. a
weakening clipper low around 29.7 inches then moves over northern
ontario late wednesday.
lsz264-150800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt sat mar 14 2026
...gale warning in effect from sunday morning through sunday
evening...
...heavy freezing spray warning in effect from sunday afternoon
through tuesday afternoon...
...storm warning in effect from sunday evening through late
monday night...
.rest of tonight...south winds 5 to 15 knots becoming east 10 to
20 knots late. a slight chance of snow after midnight. waves calm
to 2 feet building to 1 to 3 feet.
.sunday...east winds 20 to 30 knots becoming northeast gales to
45 knots in the afternoon. freezing spray. snow. waves building
to 12 to 17 feet occasionally to 21 feet.
.sunday night...northeast storm force winds to 60 knots backing
north after midnight, then increasing to storm force winds to
60 knots with a few hurricane force gusts to 65 knots possible
late. heavy freezing spray. snow. waves building to 22 to 27 feet
occasionally to 34 feet.
.monday...north hurricane force winds to 65 knots diminishing to
storm force winds to 60 knots by mid afternoon. heavy freezing
spray. snow. waves subsiding to 17 to 22 feet occasionally to
28 feet.
.monday night...north storm force winds to 55 knots diminishing
to gales to 40 knots after midnight. heavy freezing spray. a
chance of snow showers. waves subsiding to 8 to 11 feet
occasionally to 14 feet.
.tuesday...northwest winds 20 to 30 knots becoming west 5 to
15 knots by mid afternoon. heavy freezing spray through early
afternoon. waves subsiding to calm to 2 feet.
.tuesday night...south winds 10 to 20 knots. waves building to
3 to 5 feet occasionally to 7 feet.
.wednesday...south winds 10 to 20 knots veering southwest. waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet.
.thursday...southwest winds 10 to 20 knots becoming northwest
15 to 25 knots. waves subsiding to 1 to 3 feet, then building to
3 to 6 feet occasionally to 8 feet.
$$
(14/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/14/2026 10:01 PM America/New_York.
Valid through 3/15/2026 4:00 AM America/New_York.
fzus63 kmqt 150201
glfls
expires:202603150800;;688408
open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat mar 14 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...
a 30.2 inch ridge extends over lake superior tonight ahead of a 29.2
inch low developing over the central plains. this low tracks through
lower michigan sunday night to northern lake huron at 29.0 inches by
monday morning before lifting into canada monday evening. high
pressure of around 30.4 inches then overspreads the northern plains
on monday and moves over lake superior at 30.1 inches by tuesday. a
weakening clipper low around 29.7 inches then moves over northern
ontario late wednesday.
lsz263-150800-
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-
1000 pm edt sat mar 14 2026
...gale warning in effect from 8 am edt sunday through sunday
evening...
...heavy freezing spray warning in effect from sunday afternoon
through tuesday afternoon...
...storm warning in effect from sunday evening through monday
afternoon...
.rest of tonight...southeast winds 5 to 15 knots becoming east
15 to 25 knots late. a chance of snow. waves calm to 2 feet
building to 3 to 5 feet occasionally to 7 feet.
.sunday...northeast gales to 45 knots. freezing spray. snow.
waves building to 15 to 20 feet occasionally to 25 feet.
.sunday night...north storm force winds to 60 knots. heavy
freezing spray. snow. waves building to 20 to 25 feet
occasionally to 31 feet.
.monday...north storm force winds to 60 knots. heavy freezing
spray. a chance of snow. waves subsiding to 12 to 17 feet
occasionally to 21 feet.
.monday night...north gales to 45 knots. heavy freezing spray. a
slight chance of snow showers. waves subsiding to 5 to 8 feet
occasionally to 10 feet.
.tuesday...northwest winds 15 to 25 knots becoming southwest 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet.
.tuesday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of snow showers. waves building
to 3 to 5 feet occasionally to 7 feet.
.wednesday...southwest winds 10 to 20 knots. waves subsiding to
calm to 2 feet, then building to 2 to 4 feet.
.thursday...southwest winds 10 to 20 knots becoming west 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
3 to 6 feet occasionally to 8 feet.
$$
(15/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/14/2026 10:01 PM America/New_York.
Valid through 3/15/2026 4:00 AM America/New_York.
fzus63 kmqt 150201
glfls
expires:202603150800;;688407
open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat mar 14 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...
a 30.2 inch ridge extends over lake superior tonight ahead of a 29.2
inch low developing over the central plains. this low tracks through
lower michigan sunday night to northern lake huron at 29.0 inches by
monday morning before lifting into canada monday evening. high
pressure of around 30.4 inches then overspreads the northern plains
on monday and moves over lake superior at 30.1 inches by tuesday. a
weakening clipper low around 29.7 inches then moves over northern
ontario late wednesday.
lsz162-150800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt sat mar 14 2026 /900 pm cdt sat mar 14 2026/
...gale warning in effect from 8 am edt /7 am cdt/ sunday through
sunday evening...
...heavy freezing spray warning in effect from 8 am edt /7 am
cdt/ sunday through late monday night...
...storm warning in effect from sunday evening through monday
morning...
.rest of tonight...east winds 5 to 15 knots increasing to gales
to 35 knots. a slight chance of snow by midnight, then snow after
midnight. waves calm to 2 feet building to 5 to 8 feet
occasionally to 10 feet.
.sunday...northeast gales to 45 knots. freezing spray. snow.
waves building to 15 to 20 feet occasionally to 25 feet.
.sunday night...north gales to 45 knots increasing to storm force
winds to 50 knots late. heavy freezing spray. a chance of snow.
waves 15 to 20 feet occasionally to 25 feet.
.monday...north gales to 45 knots. heavy freezing spray. a slight
chance of snow. waves subsiding to 7 to 10 feet occasionally to
13 feet.
.monday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight. heavy freezing spray through midnight.
waves subsiding to 2 to 4 feet.
.tuesday...northwest winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet.
.tuesday night...south winds 10 to 20 knots. snow showers likely
through midnight, then a chance of snow showers after midnight.
waves building to 2 to 4 feet.
.wednesday...southwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet.
.thursday...southwest winds 10 to 20 knots veering west. waves
building to 1 to 3 feet.
$$
(16/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/14/2026 10:01 PM America/New_York.
Valid through 3/15/2026 4:00 AM America/New_York.
fzus63 kmqt 150201
glfls
expires:202603150800;;688410
open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat mar 14 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...
a 30.2 inch ridge extends over lake superior tonight ahead of a 29.2
inch low developing over the central plains. this low tracks through
lower michigan sunday night to northern lake huron at 29.0 inches by
monday morning before lifting into canada monday evening. high
pressure of around 30.4 inches then overspreads the northern plains
on monday and moves over lake superior at 30.1 inches by tuesday. a
weakening clipper low around 29.7 inches then moves over northern
ontario late wednesday.
lsz265-150800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt sat mar 14 2026
...gale warning in effect from sunday morning through sunday
evening...
...heavy freezing spray warning in effect from sunday afternoon
through tuesday afternoon...
...storm warning in effect from sunday evening through late
monday night...
.rest of tonight...south winds 10 to 20 knots becoming east 15 to
25 knots late. a slight chance of snow after midnight. waves calm
to 2 feet building to 1 to 3 feet, then subsiding to calm to
2 feet.
.sunday...east gales to 45 knots becoming northeast storm force
winds to 55 knots late. freezing spray. snow. waves building to
15 to 20 feet occasionally to 25 feet.
.sunday night...northeast storm force winds to 60 knots becoming
north storm force winds to 60 knots with a few hurricane force
gusts to 65 knots possible late. heavy freezing spray. snow.
waves building to 25 to 30 feet occasionally to 38 feet.
.monday...north hurricane force winds to 65 knots. heavy freezing
spray. snow. waves building to over 30 feet, then subsiding to
22 to 27 feet occasionally to 34 feet.
.monday night...north storm force winds to 60 knots diminishing
to gales to 40 knots after midnight. heavy freezing spray. a
chance of snow showers. waves subsiding to 10 to 14 feet
occasionally to 18 feet.
.tuesday...northwest winds 20 to 30 knots becoming west 10 to
20 knots by mid afternoon. heavy freezing spray through early
afternoon. waves subsiding to 1 to 3 feet.
.tuesday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to calm to 2 feet, then
building to 2 to 4 feet.
.wednesday...south winds 10 to 20 knots veering southwest. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet.
.thursday...southwest winds 15 to 25 knots veering west. waves
subsiding to calm to 2 feet, then building to 3 to 6 feet
occasionally to 8 feet.
$$
(17/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/14/2026 10:01 PM America/New_York.
Valid through 3/15/2026 4:00 AM America/New_York.
fzus63 kmqt 150201
glfls
expires:202603150800;;688411
open lake forecast for lake superior
national weather service marquette mi
1000 pm edt sat mar 14 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...
a 30.2 inch ridge extends over lake superior tonight ahead of a 29.2
inch low developing over the central plains. this low tracks through
lower michigan sunday night to northern lake huron at 29.0 inches by
monday morning before lifting into canada monday evening. high
pressure of around 30.4 inches then overspreads the northern plains
on monday and moves over lake superior at 30.1 inches by tuesday. a
weakening clipper low around 29.7 inches then moves over northern
ontario late wednesday.
lsz266-150800-
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-
1000 pm edt sat mar 14 2026
...gale warning in effect from sunday morning through sunday
evening...
...storm warning in effect from sunday evening through late
monday night...
...heavy freezing spray warning in effect from sunday evening
through tuesday afternoon...
.rest of tonight...south winds 10 to 20 knots becoming southeast
15 to 25 knots late. a slight chance of snow after midnight.
waves 1 to 3 feet building to 2 to 4 feet.
.sunday...east gales to 45 knots becoming northeast storm force
winds to 55 knots late. freezing spray. snow. waves building to
15 to 20 feet occasionally to 25 feet.
.sunday night...northeast storm force winds to 60 knots
increasing to storm force winds to 60 knots with a few hurricane
force gusts to 65 knots possible after midnight, then backing
north late. heavy freezing spray. snow. waves building to 25 to
30 feet occasionally to 38 feet.
.monday...north hurricane force winds to 65 knots. heavy freezing
spray. snow. waves building to over 30 feet, then subsiding to
25 to 30 feet occasionally to 38 feet.
.monday night...north storm force winds to 60 knots diminishing
to gales to 45 knots after midnight. heavy freezing spray. snow
showers likely through midnight. a chance of snow showers after
midnight. waves subsiding to 12 to 17 feet occasionally to
21 feet.
.tuesday...northwest gales to 35 knots diminishing to 10 to
20 knots by mid afternoon. heavy freezing spray. waves subsiding
to 3 to 5 feet occasionally to 7 feet.
.tuesday night...south winds 15 to 25 knots increasing to 20 to
30 knots after midnight. freezing spray after midnight. a chance
of snow showers after midnight. waves subsiding to 1 to 3 feet,
then building to 4 to 7 feet occasionally to 9 feet.
.wednesday...south winds 15 to 25 knots veering southwest.
freezing spray. a chance of snow showers. waves subsiding to 2 to
4 feet, then building to 3 to 6 feet occasionally to 8 feet.
.thursday...southwest winds 15 to 25 knots becoming northwest
20 to 30 knots. waves subsiding to 2 to 4 feet, then building to
5 to 8 feet occasionally to 10 feet.
$$
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