(1/18)
Latest Great Lakes Marine Forecast by KBUF
Issued 11/27/2025 10:02 PM America/New_York.
Valid through 11/28/2025 5:00 AM America/New_York.
fzus61 kbuf 280302
glflo
expires:202511281000;;626820
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est thu nov 27 2025
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 29.4 inch surface low over western quebec this evening
will slowly track to central and eastern quebec through tomorrow.
meanwhile, a 30.5 inch surface high will build south into the mid-
mississippi valley friday, then to the ohio valley and lower great
lakes saturday. another surface low will cut northeastward through
the central great lakes sunday, slowly deepening from 29.6 inches
sunday morning to 29.4 inches sunday night over western quebec. a
cold front from this low will cross the lake late sunday night. a
30.4 inch surface high centered over the central plains will then
build east across the great lakes monday, sliding quickly to new
england on tuesday.
loz062-281000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est thu nov 27 2025
...gale warning in effect through friday evening...
.rest of tonight...west winds to 30 knots. lake effect snow
showers. waves 8 to 12 feet. waves occasionally around 15 feet.
.friday...west winds to 30 knots. lake effect snow showers likely
through early afternoon, then a chance of snow showers late.
waves 8 to 12 feet. waves occasionally around 15 feet.
.friday night...west winds to 30 knots diminishing to 15 to
20 knots. a chance of snow showers. waves 6 to 10 feet subsiding
to 5 to 8 feet. waves occasionally around 13 feet.
.saturday...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet.
.saturday night...south winds 5 to 10 knots becoming southeast
and increasing to 15 to 20 knots. snow showers. waves 1 foot or
less building to 2 to 4 feet.
.sunday...south winds 15 to 25 knots becoming west to 30 knots.
rain and snow showers during the day, then rain showers with a
chance of snow showers sunday night. waves 3 to 6 feet building
to 5 to 9 feet. waves occasionally around 11 feet.
.monday...northwest winds 15 to 20 knots becoming south 5 to
15 knots. a chance of snow showers monday night. waves 4 to
7 feet subsiding to 2 feet or less. waves occasionally around
9 feet.
.tuesday...south winds around 10 knots becoming northwest. a
chance of snow showers. waves 2 feet or less.
$$
(2/18)
Latest Great Lakes Marine Forecast by KBUF
Issued 11/27/2025 10:02 PM America/New_York.
Valid through 11/28/2025 5:00 AM America/New_York.
fzus61 kbuf 280302
glflo
expires:202511281000;;626822
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est thu nov 27 2025
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 29.4 inch surface low over western quebec this evening
will slowly track to central and eastern quebec through tomorrow.
meanwhile, a 30.5 inch surface high will build south into the mid-
mississippi valley friday, then to the ohio valley and lower great
lakes saturday. another surface low will cut northeastward through
the central great lakes sunday, slowly deepening from 29.6 inches
sunday morning to 29.4 inches sunday night over western quebec. a
cold front from this low will cross the lake late sunday night. a
30.4 inch surface high centered over the central plains will then
build east across the great lakes monday, sliding quickly to new
england on tuesday.
loz064-065-281000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est thu nov 27 2025
...gale warning in effect through friday evening...
.rest of tonight...west gales to 35 knots late this evening. lake
effect snow and rain showers with a few rumbles of thunder
possible, then lake effect snow showers late. waves 10 to
15 feet. waves occasionally around 19 feet.
.friday...west winds to 30 knots increasing to 35 knot gales.
snow showers likely early, then a chance of snow showers from
late morning on. waves 10 to 15 feet. waves occasionally around
19 feet.
.friday night...northwest winds to 30 knots. a chance of snow and
rain showers likely in the evening, then a chance of snow showers
overnight. waves 10 to 14 feet subsiding to 7 to 11 feet. waves
occasionally around 18 feet.
.saturday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. a chance of snow showers. waves 5 to 8 feet subsiding
to 1 to 3 feet. waves occasionally around 10 feet.
.saturday night...west winds 10 knots or less becoming southeast
and increasing to 15 to 25 knots overnight. snow showers
overnight. waves 1 to 3 feet building to 3 to 5 feet.
.sunday...south gales to 35 knots becoming southwest. rain and
snow showers. waves 6 to 10 feet building to 9 to 12 feet. waves
occasionally around 15 feet.
.monday...northwest winds 15 to 25 knots becoming south and
diminishing to 5 to 15 knots. a chance of snow showers. waves
7 to 10 feet subsiding to 1 to 3 feet. waves occasionally around
13 feet.
.tuesday...south winds 10 to 15 knots becoming north. a chance of
snow showers. waves 1 to 3 feet.
$$
(3/18)
Latest Great Lakes Marine Forecast by KBUF
Issued 11/27/2025 10:02 PM America/New_York.
Valid through 11/28/2025 5:00 AM America/New_York.
fzus61 kbuf 280302
glflo
expires:202511281000;;626821
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est thu nov 27 2025
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 29.4 inch surface low over western quebec this evening
will slowly track to central and eastern quebec through tomorrow.
meanwhile, a 30.5 inch surface high will build south into the mid-
mississippi valley friday, then to the ohio valley and lower great
lakes saturday. another surface low will cut northeastward through
the central great lakes sunday, slowly deepening from 29.6 inches
sunday morning to 29.4 inches sunday night over western quebec. a
cold front from this low will cross the lake late sunday night. a
30.4 inch surface high centered over the central plains will then
build east across the great lakes monday, sliding quickly to new
england on tuesday.
loz063-281000-
lake ontario open waters from hamlin beach to sodus bay-
1002 pm est thu nov 27 2025
...gale warning in effect through friday evening...
.rest of tonight...west gales to 35 knots late this evening. lake
effect snow and rain showers with a few rumbles of thunder
possible late this evening, then lake effect snow showers with a
few rumbles of thunder possible after midnight. waves 10 to
15 feet. waves occasionally around 19 feet.
.friday...west winds to 30 knots increasing to 35 knot gales.
lake effect snow showers. waves 10 to 15 feet. waves occasionally
around 19 feet.
.friday night...west winds to 30 knots becoming northwest. lake
effect snow showers likely. waves 10 to 14 feet subsiding to 6 to
9 feet. waves occasionally around 18 feet.
.saturday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. a chance of snow showers. waves 5 to 8 feet subsiding
to 2 to 3 feet. waves occasionally around 10 feet.
.saturday night...southwest winds 5 to 15 knots becoming
southeast and increasing to 15 to 25 knots. a chance of snow
showers in the evening, then snow showers overnight. waves 1 to
3 feet building to 3 to 5 feet.
.sunday...south winds to 30 knots becoming west. rain and snow
showers. waves 5 to 8 feet building to 8 to 11 feet. waves
occasionally around 14 feet.
.monday...northwest winds 15 to 25 knots becoming south and
diminishing to 10 to 15 knots. a chance of snow showers. waves
6 to 9 feet subsiding to 1 to 3 feet. waves occasionally around
11 feet.
.tuesday...south winds 10 to 15 knots becoming north. a chance of
snow showers. waves 1 to 3 feet.
$$
(4/18)
Latest Great Lakes Marine Forecast by KCLE
Issued 11/27/2025 9:45 PM America/New_York.
Valid through 11/28/2025 4:15 AM America/New_York.
fzus61 kcle 280245
glfle
expires:202511280915;;626364
open lake forecast for lake erie
national weather service cleveland oh
945 pm est thu nov 27 2025
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 trough averaging 30.00 inches will linger over lake erie through
friday evening before high pressure of 30.50 inches moves east
across the lake friday night and saturday. low pressure of 29.80
inches will track out of the great plains saturday night to the
central great lakes on sunday. high pressure 30.50 inches will
begin to build east into the region on monday.
lez162>164-280915-
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-
945 pm est thu nov 27 2025
...low water advisory in effect until 4 am est friday...
.overnight...west winds to 30 knots. a chance of snow, then
a chance of flurries late. waves 5 to 8 feet. waves occasionally
around 10 feet.
.friday...west winds to 30 knots. a chance of flurries. waves
4 to 7 feet subsiding to 3 to 6 feet. waves occasionally around
9 feet.
.friday night...west winds 15 to 25 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet.
.saturday...southwest winds 5 to 10 knots becoming south. snow
likely in the afternoon. waves 2 feet or less.
.saturday night...southeast winds 15 to 25 knots becoming south
to 30 knots. snow in the evening, then rain and snow overnight.
waves 1 to 3 feet building to 3 to 5 feet.
.sunday...southwest winds to 30 knots becoming northwest 15 to
25 knots. rain with a chance of snow during the day. waves 3 to
6 feet.
.monday...northwest winds 10 to 15 knots becoming south 10 knots
or less. a chance of snow monday night. waves 1 to 3 feet
subsiding to 1 foot or less.
.tuesday...north winds 5 to 15 knots becoming west. a chance of
snow during the day. waves 1 to 3 feet.
$$
(5/18)
Latest Great Lakes Marine Forecast by KCLE
Issued 11/27/2025 9:45 PM America/New_York.
Valid through 11/28/2025 4:15 AM America/New_York.
fzus61 kcle 280245
glfle
expires:202511280915;;626365
open lake forecast for lake erie
national weather service cleveland oh
945 pm est thu nov 27 2025
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 trough averaging 30.00 inches will linger over lake erie through
friday evening before high pressure of 30.50 inches moves east
across the lake friday night and saturday. low pressure of 29.80
inches will track out of the great plains saturday night to the
central great lakes on sunday. high pressure 30.50 inches will
begin to build east into the region on monday.
lez165-166-280915-
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-
945 pm est thu nov 27 2025
.overnight...west gales to 35 knots diminishing to
30 knots. a chance of snow. waves 8 to 11 feet. waves
occasionally around 14 feet.
.friday...west winds to 30 knots. a chance of snow early, then a
chance of flurries from late morning on. waves 7 to 10 feet.
waves occasionally around 13 feet.
.friday night...west winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of snow in the evening. waves 6 to 9 feet
subsiding to 2 to 4 feet. waves occasionally around 11 feet.
.saturday...west winds 5 to 15 knots becoming south. a chance of
snow in the afternoon. waves 1 to 3 feet.
.saturday night...southeast winds 15 to 25 knots becoming south
to 30 knots. snow in the evening, then rain and snow overnight.
waves 1 to 3 feet building to 4 to 7 feet. waves occasionally
around 9 feet.
.sunday...southwest gales to 35 knots becoming northwest and
diminishing to 30 knots. rain with snow likely during the day,
then a chance of snow sunday night. waves 6 to 10 feet. waves
occasionally around 13 feet.
.monday...northwest winds 15 to 20 knots becoming south and
diminishing to 5 to 10 knots. a chance of snow monday night.
waves 3 to 6 feet subsiding to 1 to 3 feet.
.tuesday...east winds 5 to 15 knots becoming west. a chance of
snow during the day. waves 1 to 3 feet building to 2 to 4 feet.
$$
(6/18)
Latest Great Lakes Marine Forecast by KCLE
Issued 11/27/2025 9:45 PM America/New_York.
Valid through 11/28/2025 4:15 AM America/New_York.
fzus61 kcle 280245
glfle
expires:202511280915;;626366
open lake forecast for lake erie
national weather service cleveland oh
945 pm est thu nov 27 2025
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 trough averaging 30.00 inches will linger over lake erie through
friday evening before high pressure of 30.50 inches moves east
across the lake friday night and saturday. low pressure of 29.80
inches will track out of the great plains saturday night to the
central great lakes on sunday. high pressure 30.50 inches will
begin to build east into the region on monday.
lez061-167>169-280915-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 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-
945 pm est thu nov 27 2025
...gale warning in effect through friday morning...
.overnight...west gales to 35 knots. a chance of snow.
waves 10 to 15 feet. waves occasionally around 19 feet.
.friday...west winds to 30 knots. a chance of snow early, then a
chance of flurries from late morning on. waves 8 to 12 feet.
waves occasionally around 15 feet.
.friday night...west winds to 30 knots diminishing to 15 to
25 knots. a chance of snow in the evening. waves 6 to 10 feet
subsiding to 5 to 8 feet. waves occasionally around 13 feet.
.saturday...west winds 15 to 20 knots becoming south and
diminishing to 5 to 10 knots. waves 3 to 5 feet subsiding to 1 to
3 feet.
.saturday night...southeast winds 10 to 15 knots becoming south
and increasing to 30 knots. snow likely in the evening, then rain
and snow overnight. waves 1 to 3 feet building to 3 to 6 feet.
.sunday...south gales to 35 knots becoming northwest and
diminishing to 30 knots. rain with snow likely during the day,
then snow likely sunday night. waves 7 to 11 feet subsiding to
6 to 9 feet. waves occasionally around 14 feet.
.monday...northwest winds 15 to 20 knots becoming south and
diminishing to 5 to 10 knots. a chance of snow monday night.
waves 3 to 5 feet subsiding to 1 to 3 feet.
.tuesday...southeast winds 5 to 15 knots becoming northwest. a
chance of snow during the day. waves 1 to 3 feet building to 2 to
4 feet.
$$
(7/18)
Latest Great Lakes Marine Forecast by KDTX
Issued 11/27/2025 10:06 PM America/New_York.
Valid through 11/28/2025 6:15 AM America/New_York.
fzus63 kdtx 280306
glfsc
expires:202511281115;;627122
lake st clair forecast
national weather service detroit/pontiac mi
1006 pm est thu nov 27 2025
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...despite departure of low pressure over northeastern
canada, influence of the system maintains entry level gales and
lake effect snow showers into early friday. high pressure, 30.40
inches, then gradually expands across the region friday into
saturday. another low, 29.60 inches, is forecast to lift directly
across the central great lakes from the midwest saturday night
and sunday, bringing widespread snow with a chance for gusty
winds in the wake of the system sunday night.
lcz460-281115-
lake st clair-
1006 pm est thu nov 27 2025
...small craft advisory in effect through friday afternoon...
.rest of tonight...west winds 20 to 25 knots with gusts to 30 knots.
mostly cloudy this evening becoming partly cloudy. waves 2 to 4
feet.
.friday...west winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots in the afternoon. mostly sunny.
scattered flurries in the late morning and afternoon. waves 1 to 3
feet.
.friday night...west winds 20 to 25 knots diminishing to 10 to 15
knots. mostly clear. a chance of flurries early in the evening.
waves 1 to 3 feet.
.saturday...southwest winds 5 to 10 knots backing to the south early
in the afternoon. mostly cloudy. a chance of light snow early in the
afternoon. waves 2 feet or less.
.saturday night...southeast winds 15 to 20 knots becoming south 20
to 25 knots in the late evening and overnight. snow. rain after
midnight. waves 1 to 3 feet building to 2 to 4 feet after midnight.
.sunday...southwest winds 20 to 25 knots veering to the west in the
evening. light rain and snow...then partly cloudy in the evening.
waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon and
evening.
.monday...south winds 20 to 25 knots. partly cloudy. waves 2 feet or
less.
.tuesday...northwest winds 5 to 10 knots. partly cloudy. a chance of
light snow. waves 2 feet or less.
$$
(8/18)
Latest Great Lakes Marine Forecast by KDTX
Issued 11/27/2025 10:05 PM America/New_York.
Valid through 11/28/2025 6:15 AM America/New_York.
fzus63 kdtx 280305
glflh
expires:202511281115;;627113
open lake forecast for lake huron
national weather service detroit/pontiac mi
1005 pm est thu nov 27 2025
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...despite departure of low pressure over northeastern
canada, influence of the system maintains entry level gales and
lake effect snow showers into early friday. high pressure, 30.40
inches, then gradually expands across the region friday into
saturday. another low, 29.60 inches, is forecast to lift directly
across the central great lakes from the midwest saturday night
and sunday, bringing widespread snow with a chance for gusty
winds in the wake of the system sunday night.
lhz463-464-281115-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
1005 pm est thu nov 27 2025
...gale warning in effect until 10 am est friday...
.rest of tonight...west winds to 30 knots with gusts to 35 knot
gales. numerous snow showers. waves 12 to 16 feet. waves
occasionally around 20 feet.
.friday...northwest winds to 30 knots becoming west 20 to
25 knots in the afternoon. gusts to 35 knot gales. scattered snow
showers. waves 10 to 14 feet. waves occasionally around 18 feet.
.friday night...west winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots after midnight. scattered
snow showers. waves 6 to 9 feet. waves occasionally around
12 feet.
.saturday...west winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then backing to the
south early in the afternoon. a chance of snow in the afternoon.
waves 3 to 5 feet subsiding to 1 to 3 feet in the late morning
and afternoon.
.saturday night...south winds 10 to 15 knots becoming southeast
20 to 25 knots in the late evening and overnight. snow in the
evening...then snow and rain after midnight. waves 2 to 4 feet
building to 5 to 7 feet in the late evening and overnight. waves
occasionally around 10 feet.
.sunday...south winds 20 to 25 knots veering to the southwest
with gusts to around 30 knots late in the morning...then becoming
west to 30 knots late in the afternoon decreasing to 20 to
25 knots with gusts to around 30 knots late in the evening. rain
and snow...then a chance of snow late in the afternoon. waves
8 to 12 feet. waves occasionally around 15 feet.
.monday...west winds 15 to 20 knots decreasing to 10 to 15 knots
until early evening...then backing to the southwest in the late
evening and early morning. a chance of snow in the late evening
and early morning. waves 6 to 9 feet subsiding to 2 to 4 feet.
waves occasionally around 12 feet.
.tuesday...southwest winds 10 to 15 knots veering to the west
until early morning. a chance of snow early in the morning. waves
2 to 4 feet.
$$
(9/18)
Latest Great Lakes Marine Forecast by KDTX
Issued 11/27/2025 10:05 PM America/New_York.
Valid through 11/28/2025 6:15 AM America/New_York.
fzus63 kdtx 280305
glflh
expires:202511281115;;627112
open lake forecast for lake huron
national weather service detroit/pontiac mi
1005 pm est thu nov 27 2025
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...despite departure of low pressure over northeastern
canada, influence of the system maintains entry level gales and
lake effect snow showers into early friday. high pressure, 30.40
inches, then gradually expands across the region friday into
saturday. another low, 29.60 inches, is forecast to lift directly
across the central great lakes from the midwest saturday night
and sunday, bringing widespread snow with a chance for gusty
winds in the wake of the system sunday night.
lhz363-462-281115-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
1005 pm est thu nov 27 2025
...gale warning in effect until 10 am est friday...
.rest of tonight...northwest winds to 30 knots with gusts to
35 knot gales. numerous snow showers. waves 12 to 16 feet. waves
occasionally around 20 feet.
.friday...northwest winds to 30 knots decreasing to 20 to
25 knots late in the afternoon. gusts to 35 knot gales. scattered
snow showers. waves 10 to 14 feet. waves occasionally around
18 feet.
.friday night...northwest winds 20 to 25 knots with gusts to
around 30 knots becoming west 15 to 20 knots after midnight.
scattered snow showers. waves 8 to 12 feet. waves occasionally
around 15 feet.
.saturday...west winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then backing to the
south early in the afternoon. a chance of snow in the afternoon.
waves 3 to 5 feet subsiding to 1 to 3 feet in the late morning
and afternoon.
.saturday night...south winds 10 to 15 knots becoming southeast
15 to 20 knots in the late evening and overnight. snow. waves
2 to 4 feet building to 5 to 7 feet in the late evening and
overnight. waves occasionally around 10 feet.
.sunday...southeast winds 15 to 20 knots becoming west 20 to
25 knots with gusts to around 30 knots late in the morning...then
becoming northwest to 30 knots with gusts to 35 knot gales late
in the afternoon decreasing to 20 to 25 knots with gusts to
around 30 knots late in the evening. rain in the morning. snow. a
chance of snow late in the afternoon. waves 8 to 12 feet. waves
occasionally around 15 feet.
.monday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 6 to 9 feet subsiding to 2 to 4 feet. waves
occasionally around 12 feet.
.tuesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots in the late evening and early morning. a chance of snow
early in the morning. waves 3 to 5 feet.
$$
(10/18)
Latest Great Lakes Marine Forecast by KDTX
Issued 11/27/2025 10:05 PM America/New_York.
Valid through 11/28/2025 6:15 AM America/New_York.
fzus63 kdtx 280305
glflh
expires:202511281115;;627111
open lake forecast for lake huron
national weather service detroit/pontiac mi
1005 pm est thu nov 27 2025
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...despite departure of low pressure over northeastern
canada, influence of the system maintains entry level gales and
lake effect snow showers into early friday. high pressure, 30.40
inches, then gradually expands across the region friday into
saturday. another low, 29.60 inches, is forecast to lift directly
across the central great lakes from the midwest saturday night
and sunday, bringing widespread snow with a chance for gusty
winds in the wake of the system sunday night.
lhz361-362-281115-
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-
1005 pm est thu nov 27 2025
...gale warning in effect until 7 am est friday...
.rest of tonight...northwest winds to 30 knots with gusts to
35 knot gales. numerous snow showers this evening...then
scattered snow showers after midnight. waves 12 to 16 feet. waves
occasionally around 20 feet.
.friday...northwest winds to 30 knots with gusts to 35 knot
gales. scattered snow showers. waves 10 to 14 feet. waves
occasionally around 18 feet.
.friday night...northwest winds 20 to 25 knots with gusts to
around 30 knots decreasing to 10 to 15 knots. scattered snow
showers. waves 8 to 12 feet. waves occasionally around 15 feet.
.saturday...west winds 5 to 10 knots backing to the south early
in the afternoon. a chance of snow in the afternoon. waves 3 to
5 feet subsiding to 1 to 3 feet in the late morning and
afternoon.
.saturday night...south winds 5 to 10 knots becoming southeast
10 to 15 knots in the late evening and overnight. snow. snow may
be heavy at times after midnight. waves 1 to 3 feet building to
3 to 5 feet in the late evening and overnight.
.sunday...east winds 10 to 15 knots becoming northwest 20 to
25 knots with gusts to around 30 knots late in the morning...then
increasing to 30 knots late in the afternoon decreasing to 15 to
20 knots late in the evening. snow. a chance of snow late in the
afternoon. waves 6 to 9 feet. waves occasionally around 12 feet.
.monday...northwest winds 10 to 15 knots backing to the
southwest. a chance of snow until early morning. waves 5 to
7 feet subsiding to 2 to 4 feet until early morning. waves
occasionally around 10 feet.
.tuesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots in the late evening and early morning. a chance of snow
early in the morning. waves 3 to 5 feet.
$$
(11/18)
Latest Great Lakes Marine Forecast by KMKX
Issued 11/27/2025 8:51 PM US/Central.
Valid through 11/28/2025 4:30 AM US/Central.
fzus63 kmkx 280251
glflm
expires:202511281030;;626426
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 pm cst thu nov 27 2025
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 of 29.4 inches over western quebec will slowly move
eastward through friday with some weakening. northwest winds
continue. occasional gale force gusts will continue over the
northern third of the lake through around midnight (thanksgiving
night), remaining gusty but just shy of gale force through friday
morning then gradually decelerating friday afternoon. a ridge of
high pressure will then move across the lake friday night with
light and variable winds expected.
low pressure of 29.8 inches will then track from eastern kansas
saturday morning to the southern tip of lake michigan saturday
night, and then reach lake huron by mid sunday while deepening to
29.7 inches. widespread, moderate to heavy snow will overspread
the south half of lake michigan. brisk southeast winds saturday
will become easterly and then westerly as the low crosses the
great lakes region. gales are not anticipated at this time,
although a period of gusty northwest winds is expected sunday.
lmz080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-281030-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from 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 pentwater to manistee mi 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-
851 pm cst thu nov 27 2025
sturgeon bay wi to point betsie mi south...
.rest of tonight...northwest winds to around 30 kt. a few gusts to
gale force possible. scattered snow showers over eastern portions
of the lake. waves 8 to 12 ft occasionally to 16 ft.
.friday...northwest winds to 30 kt diminishing to 10 to 20 kt.
scattered snow showers over eastern portions of the lake. waves 7
to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
.friday night...northwest winds 10 to 20 kt diminishing to 5 to
10 kt late in the evening, then becoming west after midnight
becoming southwest late. chance of snow. waves 3 to 5 ft
subsiding to 1 to 2 ft.
.saturday...south winds 10 to 20 kt becoming southeast to 30 kt
in the afternoon. snow. waves 3 to 5 ft building to 5 to 8 ft
occasionally to 10 ft.
.saturday night...southeast winds to 30 kt becoming east 15 to
25 kt. snow. waves 6 to 9 ft occasionally to 12 ft subsiding to
4 to 7 ft occasionally to 9 ft.
.sunday...northwest winds to 30 kt. snow in the morning, then
chance of snow in the afternoon. waves 7 to 10 ft occasionally to
13 ft building to 8 to 12 ft occasionally to 16 ft.
.sunday night...northwest winds to 30 kt diminishing to 10 to
20 kt. chance of snow showers. waves 8 to 12 ft occasionally to
16 ft subsiding to 5 to 8 ft occasionally to 10 ft.
.monday...west winds 10 to 15 kt increasing to 10 to 20 kt. waves
3 to 5 ft subsiding to 2 to 4 ft.
.tuesday...west winds 10 to 20 kt. waves 3 to 5 ft.
$$
(12/18)
Latest Great Lakes Marine Forecast by KMKX
Issued 11/27/2025 8:51 PM US/Central.
Valid through 11/28/2025 4:30 AM US/Central.
fzus63 kmkx 280251
glflm
expires:202511281030;;626425
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 pm cst thu nov 27 2025
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 of 29.4 inches over western quebec will slowly move
eastward through friday with some weakening. northwest winds
continue. occasional gale force gusts will continue over the
northern third of the lake through around midnight (thanksgiving
night), remaining gusty but just shy of gale force through friday
morning then gradually decelerating friday afternoon. a ridge of
high pressure will then move across the lake friday night with
light and variable winds expected.
low pressure of 29.8 inches will then track from eastern kansas
saturday morning to the southern tip of lake michigan saturday
night, and then reach lake huron by mid sunday while deepening to
29.7 inches. widespread, moderate to heavy snow will overspread
the south half of lake michigan. brisk southeast winds saturday
will become easterly and then westerly as the low crosses the
great lakes region. gales are not anticipated at this time,
although a period of gusty northwest winds is expected sunday.
lmz261-362-364-563-281030-
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 rock island passage to sturgeon bay wi-
851 pm cst thu nov 27 2025
sturgeon bay wi to point betsie mi north...
...gale warning in effect until midnight cst tonight...
.rest of tonight...northwest gales to 40 kt diminishing to around
30 kt. scattered snow showers. waves 7 to 10 ft occasionally to
13 ft.
.friday...northwest winds to 30 kt diminishing to 15 to 25 kt.
scattered snow showers. waves 5 to 8 ft occasionally to 10 ft
subsiding to 4 to 7 ft occasionally to 9 ft.
.friday night...northwest winds 15 to 25 kt diminishing to 5 to
10 kt. chance of snow in the evening. waves 4 to 6 ft
occasionally to 8 ft subsiding to 1 to 3 ft.
.saturday...west winds 10 to 15 kt backing to southeast. snow
likely in the afternoon. waves 1 to 2 ft building to 1 to 3 ft.
.saturday night...southeast winds 10 to 20 kt becoming east.
snow. waves 3 to 5 ft.
.sunday...north winds to 30 kt becoming northwest. snow in the
morning, then snow likely in the afternoon. waves 4 to 6 ft
occasionally to 8 ft.
.sunday night...northwest winds to 30 kt diminishing to 15 to
25 kt. chance of snow showers. waves 4 to 6 ft occasionally to
8 ft subsiding to 3 to 5 ft.
.monday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft.
.tuesday...west winds 15 to 25 kt becoming southwest. waves 2 to
4 ft.
$$
(13/18)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/27/2025 10:00 PM America/New_York.
Valid through 11/28/2025 4:00 AM America/New_York.
fzus63 kmqt 280300
glfls
expires:202511280900;;626655
open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu nov 27 2025
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...
lake superior will spend the rest of thanksgiving between a 30.6
inch high over the dakotas and a 29.4 inch low over quebec. by
friday, the high will weaken slightly to 30.5 inches as it shifts
over the upper mississippi river valley while the low weakens to
29.5 inches, still over quebec. meanwhile, a 29.7 inch colorado low
develops, which will move over oklahoma at 29.8 inches on saturday
while 30.4 inch high pressure spans the great lakes. the low ejects
into the southern great lakes basin early sunday morning at 29.9
inches, reaching the southern ontario/quebec border at 29.8 inches
sunday evening. in its wake, 30.6 inch high pressure moves over the
upper midwest, sliding south of the great lakes at 30.4 inches
monday. the high is eroded on tuesday by a low pressure of around
29.8 inches over northern ontario and a 29.5 inch nor'easter off the
coast of the chesapeake bay.
lsz266-280900-
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 est thu nov 27 2025
...gale warning in effect until 7 am est friday...
.rest of tonight...north gales to 40 knots backing northwest
late. a chance of snow showers. waves 11 to 15 feet occasionally
to 19 feet subsiding to 10 to 14 feet occasionally to 18 feet.
.friday...northwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. a chance of snow showers. waves
subsiding to 6 to 9 feet occasionally to 11 feet.
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots by midnight. snow showers in the evening. a chance
of snow showers after midnight. waves subsiding to 2 to 4 feet.
.saturday...northwest winds 10 to 20 knots becoming north 5 to
15 knots in the afternoon. a chance of snow showers in the
morning, then snow showers in the afternoon. waves subsiding to
calm to 2 feet.
.saturday night...northeast winds 5 to 15 knots becoming north
15 to 25 knots after midnight. snow showers. waves building to
2 to 4 feet.
.sunday...north winds 20 to 30 knots becoming northwest gales to
35 knots in the afternoon. snow showers. waves building to 8 to
11 feet occasionally to 14 feet.
.sunday night...northwest gales to 35 knots diminishing to 15 to
25 knots after midnight. snow showers. waves subsiding to 4 to
7 feet occasionally to 9 feet.
.monday...west winds 15 to 25 knots backing southwest. a chance
of snow showers. waves subsiding to 3 to 6 feet occasionally to
8 feet.
.tuesday...southwest winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet.
$$
(14/18)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/27/2025 10:00 PM America/New_York.
Valid through 11/28/2025 4:00 AM America/New_York.
fzus63 kmqt 280300
glfls
expires:202511280900;;626656
open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu nov 27 2025
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...
lake superior will spend the rest of thanksgiving between a 30.6
inch high over the dakotas and a 29.4 inch low over quebec. by
friday, the high will weaken slightly to 30.5 inches as it shifts
over the upper mississippi river valley while the low weakens to
29.5 inches, still over quebec. meanwhile, a 29.7 inch colorado low
develops, which will move over oklahoma at 29.8 inches on saturday
while 30.4 inch high pressure spans the great lakes. the low ejects
into the southern great lakes basin early sunday morning at 29.9
inches, reaching the southern ontario/quebec border at 29.8 inches
sunday evening. in its wake, 30.6 inch high pressure moves over the
upper midwest, sliding south of the great lakes at 30.4 inches
monday. the high is eroded on tuesday by a low pressure of around
29.8 inches over northern ontario and a 29.5 inch nor'easter off the
coast of the chesapeake bay.
lsz267-280900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est thu nov 27 2025
...gale warning in effect until 7 am est friday...
.rest of tonight...north gales to 40 knots. a chance of snow
showers. waves 10 to 14 feet occasionally to 18 feet subsiding to
9 to 12 feet occasionally to 15 feet.
.friday...north gales to 35 knots backing northwest by mid
afternoon. a chance of snow showers. waves subsiding to 6 to
9 feet occasionally to 11 feet.
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots by midnight. snow showers in the evening, then a
chance of snow showers after midnight. waves subsiding to 2 to
4 feet.
.saturday...west winds 10 to 20 knots backing southwest in the
afternoon. snow showers. waves subsiding to calm to 2 feet.
.saturday night...southeast winds 10 to 20 knots backing east
after midnight. snow showers. waves calm to 2 feet.
.sunday...north winds 15 to 25 knots becoming northwest 20 to
30 knots in the afternoon. snow showers. waves building to 7 to
10 feet occasionally to 13 feet.
.sunday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. snow showers. waves subsiding to
4 to 7 feet occasionally to 9 feet.
.monday...west winds 15 to 25 knots backing southwest. snow
showers likely. waves subsiding to 3 to 5 feet occasionally to
7 feet.
.tuesday...southwest winds 15 to 25 knots. snow showers likely.
waves building to 3 to 6 feet occasionally to 8 feet.
$$
(15/18)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/27/2025 10:00 PM America/New_York.
Valid through 11/28/2025 4:00 AM America/New_York.
fzus63 kmqt 280300
glfls
expires:202511280900;;626651
open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu nov 27 2025
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...
lake superior will spend the rest of thanksgiving between a 30.6
inch high over the dakotas and a 29.4 inch low over quebec. by
friday, the high will weaken slightly to 30.5 inches as it shifts
over the upper mississippi river valley while the low weakens to
29.5 inches, still over quebec. meanwhile, a 29.7 inch colorado low
develops, which will move over oklahoma at 29.8 inches on saturday
while 30.4 inch high pressure spans the great lakes. the low ejects
into the southern great lakes basin early sunday morning at 29.9
inches, reaching the southern ontario/quebec border at 29.8 inches
sunday evening. in its wake, 30.6 inch high pressure moves over the
upper midwest, sliding south of the great lakes at 30.4 inches
monday. the high is eroded on tuesday by a low pressure of around
29.8 inches over northern ontario and a 29.5 inch nor'easter off the
coast of the chesapeake bay.
lsz162-280900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est thu nov 27 2025 /900 pm cst thu nov 27 2025/
.rest of tonight...northwest winds 20 to 30 knots diminishing to
15 to 25 knots by midnight. waves 3 to 6 feet occasionally to
8 feet.
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet.
.friday night...northwest winds 5 to 15 knots veering north by
midnight. waves calm to 2 feet.
.saturday...north winds 5 to 15 knots veering northeast in the
afternoon. a chance of snow showers. waves calm to 2 feet.
.saturday night...north winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of snow showers. waves building
to 1 to 3 feet.
.sunday...northwest winds 15 to 25 knots. waves 1 to 3 feet.
.sunday night...northwest winds 10 to 20 knots backing west after
midnight. waves subsiding to calm to 2 feet.
.monday...southwest winds 15 to 25 knots veering west. waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.tuesday...southwest winds 10 to 20 knots veering west. a chance
of snow showers. waves subsiding to calm to 2 feet, then building
to 1 to 3 feet.
$$
(16/18)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/27/2025 10:00 PM America/New_York.
Valid through 11/28/2025 4:00 AM America/New_York.
fzus63 kmqt 280300
glfls
expires:202511280900;;626652
open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu nov 27 2025
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...
lake superior will spend the rest of thanksgiving between a 30.6
inch high over the dakotas and a 29.4 inch low over quebec. by
friday, the high will weaken slightly to 30.5 inches as it shifts
over the upper mississippi river valley while the low weakens to
29.5 inches, still over quebec. meanwhile, a 29.7 inch colorado low
develops, which will move over oklahoma at 29.8 inches on saturday
while 30.4 inch high pressure spans the great lakes. the low ejects
into the southern great lakes basin early sunday morning at 29.9
inches, reaching the southern ontario/quebec border at 29.8 inches
sunday evening. in its wake, 30.6 inch high pressure moves over the
upper midwest, sliding south of the great lakes at 30.4 inches
monday. the high is eroded on tuesday by a low pressure of around
29.8 inches over northern ontario and a 29.5 inch nor'easter off the
coast of the chesapeake bay.
lsz263-280900-
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 est thu nov 27 2025
.rest of tonight...north winds 20 to 30 knots backing northwest
late. a slight chance of snow showers. waves 4 to 8 feet
occasionally to 10 feet.
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. a slight chance of snow showers in the morning. waves
subsiding to 1 to 3 feet.
.friday night...northwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet.
.saturday...north winds 5 to 15 knots veering northeast in the
afternoon. a chance of snow showers. waves calm to 2 feet.
.saturday night...north 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.
.sunday...northwest winds 20 to 30 knots. a chance of snow
showers. waves building to 3 to 6 feet occasionally to 8 feet.
.sunday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. a chance of snow showers. waves
subsiding to 2 to 4 feet.
.monday...west winds 20 to 30 knots backing southwest. waves
building to 3 to 6 feet occasionally to 8 feet.
.tuesday...southwest winds 15 to 25 knots veering west. a chance
of snow showers. waves subsiding to 2 to 4 feet, then building to
3 to 5 feet occasionally to 7 feet.
$$
(17/18)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/27/2025 10:00 PM America/New_York.
Valid through 11/28/2025 4:00 AM America/New_York.
fzus63 kmqt 280300
glfls
expires:202511280900;;626653
open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu nov 27 2025
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...
lake superior will spend the rest of thanksgiving between a 30.6
inch high over the dakotas and a 29.4 inch low over quebec. by
friday, the high will weaken slightly to 30.5 inches as it shifts
over the upper mississippi river valley while the low weakens to
29.5 inches, still over quebec. meanwhile, a 29.7 inch colorado low
develops, which will move over oklahoma at 29.8 inches on saturday
while 30.4 inch high pressure spans the great lakes. the low ejects
into the southern great lakes basin early sunday morning at 29.9
inches, reaching the southern ontario/quebec border at 29.8 inches
sunday evening. in its wake, 30.6 inch high pressure moves over the
upper midwest, sliding south of the great lakes at 30.4 inches
monday. the high is eroded on tuesday by a low pressure of around
29.8 inches over northern ontario and a 29.5 inch nor'easter off the
coast of the chesapeake bay.
lsz264-280900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est thu nov 27 2025
...gale warning in effect until 1 am est friday...
.rest of tonight...north gales to 35 knots diminishing to 20 to
30 knots late. a slight chance of snow showers. waves 8 to
11 feet occasionally to 14 feet subsiding to 6 to 9 feet
occasionally to 11 feet.
.friday...north winds 20 to 30 knots becoming northwest 15 to
25 knots. a slight chance of snow showers. waves subsiding to
3 to 5 feet occasionally to 7 feet.
.friday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots by midnight. waves subsiding to calm to 2 feet.
.saturday...northwest winds 5 to 15 knots veering north in the
afternoon. a slight chance of snow showers in the afternoon.
waves calm to 2 feet.
.saturday night...north winds 5 to 15 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.
.sunday...north winds 20 to 30 knots backing northwest in the
afternoon. a chance of snow showers. waves building to 4 to
7 feet occasionally to 9 feet.
.sunday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet.
.monday...west winds 15 to 25 knots increasing to 20 to 30 knots.
a chance of snow showers. waves subsiding to 2 to 4 feet, then
building to 3 to 6 feet occasionally to 8 feet.
.tuesday...west winds 15 to 25 knots. a chance of snow showers.
waves subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet.
$$
(18/18)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/27/2025 10:00 PM America/New_York.
Valid through 11/28/2025 4:00 AM America/New_York.
fzus63 kmqt 280300
glfls
expires:202511280900;;626654
open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu nov 27 2025
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...
lake superior will spend the rest of thanksgiving between a 30.6
inch high over the dakotas and a 29.4 inch low over quebec. by
friday, the high will weaken slightly to 30.5 inches as it shifts
over the upper mississippi river valley while the low weakens to
29.5 inches, still over quebec. meanwhile, a 29.7 inch colorado low
develops, which will move over oklahoma at 29.8 inches on saturday
while 30.4 inch high pressure spans the great lakes. the low ejects
into the southern great lakes basin early sunday morning at 29.9
inches, reaching the southern ontario/quebec border at 29.8 inches
sunday evening. in its wake, 30.6 inch high pressure moves over the
upper midwest, sliding south of the great lakes at 30.4 inches
monday. the high is eroded on tuesday by a low pressure of around
29.8 inches over northern ontario and a 29.5 inch nor'easter off the
coast of the chesapeake bay.
lsz265-280900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est thu nov 27 2025
...gale warning in effect until 1 am est friday...
.rest of tonight...northwest gales to 35 knots. a chance of snow
showers. waves 9 to 12 feet occasionally to 15 feet subsiding to
7 to 10 feet occasionally to 13 feet.
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet.
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots by midnight, then backing west late. a chance of
snow showers. waves subsiding to calm to 2 feet.
.saturday...west winds 10 to 20 knots becoming north 5 to
15 knots in the afternoon. a chance of snow showers. waves calm
to 2 feet.
.saturday night...northeast winds 5 to 15 knots becoming north
15 to 25 knots after midnight. snow showers. waves building to
2 to 4 feet.
.sunday...north winds 20 to 30 knots becoming northwest gales to
35 knots in the afternoon. snow showers likely. waves building to
4 to 8 feet occasionally to 10 feet.
.sunday night...northwest winds 20 to 30 knots becoming west
15 to 25 knots after midnight. snow showers likely. waves
subsiding to 2 to 4 feet.
.monday...west winds 15 to 25 knots backing southwest. a chance
of snow showers. waves subsiding to 1 to 3 feet.
.tuesday...southwest winds 15 to 25 knots veering west. a chance
of snow showers. waves subsiding to calm to 2 feet, then building
to 1 to 3 feet.
$$
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