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(1/19)
Latest Great Lakes Marine Forecast by KBUF
Issued 11/25/2025 4:02 PM America/New_York.
Valid through 11/25/2025 11:00 PM America/New_York.
fzus61 kbuf 252102
glflo
expires:202511260400;;499744
open lake forecast for lake ontario
national weather service buffalo ny
402 pm est tue nov 25 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 29.6 inch low over the western great lakes this
evening will track toward the central great lakes wednesday, then
track into eastern ontario through wednesday night while deepening
to 29.4 inches. a cold front from this low will rush across the lake
wednesday afternoon. the 29.4 inch surface low will then track well
north of the lake thursday and friday, as a 30.4 inch surface high
builds into the mid mississippi valley friday and to the ohio valley
saturday. another surface low will cut northeastward through the
central great lakes sunday, deepening from 29.6 inches sunday
morning to 29.4 inches sunday night over western quebec.
loz062-260400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est tue nov 25 2025
...gale warning in effect from wednesday afternoon through friday
evening...
.tonight...southeast winds 5 to 10 knots becoming south. showers
early, then a chance of showers late this evening. showers likely
after midnight. waves 1 foot or less.
.wednesday...south winds around 10 knots becoming southwest and
increasing to 35 knot gales in the afternoon. showers. waves
1 foot or less building to 8 to 11 feet. waves occasionally
around 14 feet.
.wednesday night...southwest gales to 35 knots increasing to
40 knots. lake effect rain showers likely in the evening, then
rain showers likely overnight. waves 10 to 14 feet building to
11 to 16 feet. waves occasionally around 20 feet.
.thursday...west gales to 40 knots. lake effect rain and snow
showers likely. waves 13 to 18 feet. waves occasionally around
23 feet.
.thursday night...west gales to 35 knots diminishing to 30 knots
overnight. lake effect snow with lake effect rain showers likely
in the evening, then lake effect snow overnight. waves 10 to
15 feet. waves occasionally around 19 feet.
.friday...west gales to 35 knots becoming northwest and
diminishing to 15 to 25 knots. lake effect snow showers likely.
waves 9 to 13 feet subsiding to 4 to 7 feet. waves occasionally
around 16 feet.
.saturday...west winds 15 to 20 knots becoming south. a chance of
snow showers during the day, then snow and rain showers likely
saturday night. waves 2 to 4 feet subsiding to 1 to 3 feet.
.sunday...south winds 15 to 25 knots becoming west. rain and snow
showers likely during the day, then rain showers likely with a
chance of snow showers sunday night. waves 3 to 5 feet.
$$
(2/19)
Latest Great Lakes Marine Forecast by KBUF
Issued 11/25/2025 4:02 PM America/New_York.
Valid through 11/25/2025 11:00 PM America/New_York.
fzus61 kbuf 252102
glflo
expires:202511260400;;499745
open lake forecast for lake ontario
national weather service buffalo ny
402 pm est tue nov 25 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 29.6 inch low over the western great lakes this
evening will track toward the central great lakes wednesday, then
track into eastern ontario through wednesday night while deepening
to 29.4 inches. a cold front from this low will rush across the lake
wednesday afternoon. the 29.4 inch surface low will then track well
north of the lake thursday and friday, as a 30.4 inch surface high
builds into the mid mississippi valley friday and to the ohio valley
saturday. another surface low will cut northeastward through the
central great lakes sunday, deepening from 29.6 inches sunday
morning to 29.4 inches sunday night over western quebec.
loz063-260400-
lake ontario open waters from hamlin beach to sodus bay-
402 pm est tue nov 25 2025
...gale warning in effect from wednesday afternoon through friday
evening...
.tonight...southeast winds 10 to 15 knots becoming south. showers
early, then a chance of showers late this evening. showers likely
after midnight. waves 2 feet or less.
.wednesday...south winds 10 to 15 knots becoming southwest and
increasing to 30 knots in the afternoon. showers. waves 1 to
3 feet building to 5 to 8 feet. waves occasionally around
10 feet.
.wednesday night...southwest gales to 35 knots. lake effect rain
showers likely in the evening, then lake effect rain and snow
showers likely overnight. waves 10 to 14 feet building to 12 to
16 feet. waves occasionally around 20 feet.
.thursday...southwest gales to 40 knots becoming west. lake
effect rain and snow showers likely in the morning, then lake
effect rain with lake effect snow showers likely in the
afternoon. waves 14 to 19 feet. waves occasionally around
24 feet.
.thursday night...west gales to 40 knots diminishing to 35 knots.
lake effect snow with lake effect rain showers likely in the
evening, then lake effect snow overnight. waves 15 to 19 feet
subsiding to 11 to 15 feet. waves occasionally around 24 feet.
.friday...northwest gales to 35 knots diminishing to 30 knots.
lake effect snow during the day, then lake effect snow showers
likely friday night. waves 10 to 15 feet subsiding to 7 to
10 feet. waves occasionally around 19 feet.
.saturday...northwest winds 15 to 20 knots becoming south. snow
showers likely saturday night. waves 3 to 6 feet subsiding to
3 to 5 feet.
.sunday...south winds 15 to 25 knots becoming west. rain and snow
showers likely during the day, then rain showers likely with a
chance of snow showers sunday night. waves 3 to 6 feet.
$$
(3/19)
Latest Great Lakes Marine Forecast by KBUF
Issued 11/25/2025 4:02 PM America/New_York.
Valid through 11/25/2025 11:00 PM America/New_York.
fzus61 kbuf 252102
glflo
expires:202511260400;;499746
open lake forecast for lake ontario
national weather service buffalo ny
402 pm est tue nov 25 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 29.6 inch low over the western great lakes this
evening will track toward the central great lakes wednesday, then
track into eastern ontario through wednesday night while deepening
to 29.4 inches. a cold front from this low will rush across the lake
wednesday afternoon. the 29.4 inch surface low will then track well
north of the lake thursday and friday, as a 30.4 inch surface high
builds into the mid mississippi valley friday and to the ohio valley
saturday. another surface low will cut northeastward through the
central great lakes sunday, deepening from 29.6 inches sunday
morning to 29.4 inches sunday night over western quebec.
loz064-065-260400-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 pm est tue nov 25 2025
...gale warning in effect from wednesday afternoon through friday
evening...
.tonight...southeast winds 10 to 15 knots becoming south.
showers. waves 1 to 3 feet.
.wednesday...south winds 10 to 15 knots becoming southwest and
increasing to 30 knots in the afternoon. showers. waves 1 to
3 feet building to 5 to 8 feet. waves occasionally around
10 feet.
.wednesday night...west gales to 35 knots becoming southwest.
rain showers in the evening, then lake effect rain with a chance
of lake effect snow showers overnight. waves 10 to 15 feet. waves
occasionally around 19 feet.
.thursday...southwest gales to 40 knots becoming west. lake
effect rain with lake effect snow showers likely in the morning,
then lake effect rain and snow in the afternoon. waves 14 to
19 feet building to 15 to 20 feet. waves occasionally around
26 feet.
.thursday night...west gales to 40 knots diminishing to 35 knots.
lake effect snow and lake effect rain in the evening, then lake
effect snow overnight. waves 14 to 19 feet subsiding to 12 to
17 feet. waves occasionally around 24 feet.
.friday...northwest gales to 35 knots diminishing to 30 knots.
lake effect snow showers likely. waves 10 to 15 feet subsiding to
7 to 10 feet. waves occasionally around 19 feet.
.saturday...northwest winds 15 to 25 knots becoming south. snow
showers likely saturday night. waves 4 to 7 feet subsiding to
3 to 5 feet. waves occasionally around 9 feet.
.sunday...south winds to 30 knots becoming west and diminishing
to 15 to 20 knots. rain showers with snow showers likely. waves
5 to 8 feet subsiding to 3 to 6 feet. waves occasionally around
10 feet.
$$
(4/19)
Latest Great Lakes Marine Forecast by KCLE
Issued 11/25/2025 2:54 PM America/New_York.
Valid through 11/25/2025 10:30 PM America/New_York.
fzus61 kcle 251954
glfle
expires:202511260330;;496461
open lake forecast for lake erie
national weather service cleveland oh
254 pm est tue nov 25 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...
low pressure 29.60 inches will deepen to 29.20 inches over the
northern great lakes tonight into wednesday. a strong cold front
extending from this low will quickly move east across lake erie
wednesday morning. the low will slowly move through ontario and
quebec on thursday and friday as a residual trough averaging 29.80
inches remains across the lake. high pressure 30.50 inches will
build into the great lakes region on saturday followed by a low of
29.90 inches on sunday.
lez162>164-260330-
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-
254 pm est tue nov 25 2025
...gale warning in effect from wednesday morning through late
thursday night...
...low water advisory in effect from 7 am wednesday to 4 am est
friday...
.tonight...southwest winds 5 to 15 knots increasing to 15 to
20 knots. a chance of rain early, then a slight chance of rain. a
chance of rain late. waves 1 to 3 feet.
.wednesday...southwest winds to 30 knots increasing to 40 knot
gales in the afternoon. a chance of rain early, then a slight
chance of rain. a chance of snow with a slight chance of rain
late. waves 3 to 5 feet building to 7 to 10 feet. waves
occasionally around 13 feet.
.wednesday night...southwest gales to 45 knots becoming west to
40 knots. a chance of snow. waves 7 to 11 feet. waves
occasionally around 14 feet.
.thursday...west gales to 35 knots. a chance of snow. waves 6 to
9 feet. waves occasionally around 11 feet.
.thursday night...west gales to 40 knots diminishing to 30 knots.
a chance of snow in the evening. waves 6 to 10 feet subsiding to
5 to 8 feet. waves occasionally around 13 feet.
.friday...west winds to 30 knots diminishing to 10 to 15 knots.
waves 4 to 7 feet subsiding to 1 to 3 feet. waves occasionally
around 9 feet.
.saturday...southwest winds 5 to 15 knots becoming south 15 to
20 knots. a chance of snow during the day, then rain and snow
saturday night. waves 1 to 3 feet building to 2 to 4 feet.
.sunday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of rain during the day, then a chance of rain,
freezing rain and snow sunday night. waves 2 to 4 feet subsiding
to 1 to 3 feet.
$$
(5/19)
Latest Great Lakes Marine Forecast by KCLE
Issued 11/25/2025 2:54 PM America/New_York.
Valid through 11/25/2025 10:30 PM America/New_York.
fzus61 kcle 251954
glfle
expires:202511260330;;496462
open lake forecast for lake erie
national weather service cleveland oh
254 pm est tue nov 25 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...
low pressure 29.60 inches will deepen to 29.20 inches over the
northern great lakes tonight into wednesday. a strong cold front
extending from this low will quickly move east across lake erie
wednesday morning. the low will slowly move through ontario and
quebec on thursday and friday as a residual trough averaging 29.80
inches remains across the lake. high pressure 30.50 inches will
build into the great lakes region on saturday followed by a low of
29.90 inches on sunday.
lez165>167-260330-
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-
254 pm est tue nov 25 2025
...gale warning in effect from wednesday morning through friday
morning...
.tonight...south winds 10 to 15 knots becoming southwest 15 to
20 knots. a chance of rain. waves 1 to 3 feet.
.wednesday...southwest winds 15 to 25 knots increasing to 45 knot
gales in the afternoon. a chance of rain through early afternoon,
then rain likely late. waves 3 to 5 feet building to 12 to
17 feet. waves occasionally around 22 feet.
.wednesday night...southwest gales to 45 knots becoming west.
rain likely with a chance of snow in the evening, then a chance
of snow overnight. waves 13 to 18 feet. waves occasionally around
23 feet.
.thursday...west gales to 40 knots. a chance of snow in the
morning, then snow likely in the afternoon. waves 11 to 16 feet.
waves occasionally around 20 feet.
.thursday night...west gales to 40 knots. a chance of snow. waves
10 to 15 feet. waves occasionally around 19 feet.
.friday...west gales to 35 knots diminishing to 15 to 25 knots. a
chance of snow during the day. waves 9 to 12 feet subsiding to
3 to 5 feet. waves occasionally around 15 feet.
.saturday...southwest winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. a chance of snow during the day,
then rain with snow likely saturday night. waves 1 to 3 feet
building to 3 to 6 feet.
.sunday...south winds to 30 knots becoming west and diminishing
to 15 to 20 knots. rain likely during the day, then a chance of
rain and snow sunday night. waves 5 to 8 feet subsiding to 3 to
5 feet. waves occasionally around 10 feet.
$$
(6/19)
Latest Great Lakes Marine Forecast by KCLE
Issued 11/25/2025 2:54 PM America/New_York.
Valid through 11/25/2025 10:30 PM America/New_York.
fzus61 kcle 251954
glfle
expires:202511260330;;496463
open lake forecast for lake erie
national weather service cleveland oh
254 pm est tue nov 25 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...
low pressure 29.60 inches will deepen to 29.20 inches over the
northern great lakes tonight into wednesday. a strong cold front
extending from this low will quickly move east across lake erie
wednesday morning. the low will slowly move through ontario and
quebec on thursday and friday as a residual trough averaging 29.80
inches remains across the lake. high pressure 30.50 inches will
build into the great lakes region on saturday followed by a low of
29.90 inches on sunday.
lez061-168-169-260330-
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-
254 pm est tue nov 25 2025
...gale warning in effect from wednesday morning through friday
morning...
.tonight...south winds 10 to 15 knots becoming southwest. a
chance of rain early, then rain likely. a chance of rain late.
waves 2 feet or less.
.wednesday...southwest winds 15 to 20 knots increasing to 40 knot
gales in the afternoon. rain likely. waves 1 to 3 feet building
to 13 to 17 feet. waves occasionally around 22 feet.
.wednesday night...southwest gales to 40 knots becoming west to
45 knots. rain and snow. waves 14 to 19 feet. waves occasionally
around 24 feet.
.thursday...west gales to 40 knots. snow likely. waves 13 to
18 feet subsiding to 12 to 17 feet. waves occasionally around
23 feet.
.thursday night...west gales to 40 knots. snow likely in the
evening, then snow overnight. waves 12 to 17 feet subsiding to
10 to 14 feet. waves occasionally around 22 feet.
.friday...west gales to 35 knots diminishing to 15 to 25 knots.
snow during the day, then a chance of snow friday night. waves
10 to 13 feet subsiding to 4 to 7 feet. waves occasionally around
16 feet.
.saturday...west winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. a chance of snow during the day,
then rain with snow likely saturday night. waves 1 to 3 feet
building to 3 to 5 feet.
.sunday...south winds 15 to 25 knots becoming west. rain likely
during the day, then rain likely with a chance of snow sunday
night. waves 3 to 6 feet building to 4 to 7 feet, then subsiding
to 3 to 5 feet. waves occasionally around 9 feet.
$$
(7/19)
Latest Great Lakes Marine Forecast by KDTX
Issued 11/25/2025 3:47 PM America/New_York.
Valid through 11/26/2025 12:00 AM America/New_York.
fzus63 kdtx 252047
glfsc
expires:202511260500;;499105
lake st clair forecast
national weather service detroit/pontiac mi
347 pm est tue nov 25 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...weak low pressure tracks through the great lakes today
with occasional rain and modest winds. a stronger low pressure
system arriving from the midwest then rapidly deepens over the
northern great lakes wednesday into wednesday night, leading to a
long duration of gales through early friday. much cooler air
arrives with snow squalls becoming likely thursday into friday.
the next system will work through the area on sunday.
lcz460-260500-
lake st clair-
347 pm est tue nov 25 2025
...gale warning in effect from wednesday morning through late
thursday night...
.tonight...southwest winds 5 to 10 knots increasing to 15 to 20
knots. mostly cloudy. patchy dense fog. a chance of light rain early
in the evening. a chance of light rain early in the morning. waves 2
feet or less.
.wednesday...southwest winds 20 to 25 knots increasing to 35 knot
gales with gusts to 40 knot gales. mostly cloudy. a chance of light
rain until late afternoon. a chance of light snow in the afternoon.
waves 3 to 5 feet building to 4 to 6 feet late in the afternoon.
waves occasionally around 8 feet.
.wednesday night...west at 40 knot gales. mostly cloudy. light snow
likely until early morning...then a chance of light snow after
midnight. waves 5 to 7 feet. waves occasionally around 10 feet.
.thursday...west at 35 knot gales diminishing to 30 knots in the
late morning and afternoon. gusts to 40 knot gales. mostly cloudy
with a chance of light snow. waves 3 to 5 feet. waves occasionally
around 7 feet.
.thursday night...west at 35 knot gales. mostly cloudy early in the
evening becoming partly cloudy. waves 3 to 5 feet. waves
occasionally around 6 feet.
.friday...west winds to 30 knots diminishing to 15 to 20 knots in
the afternoon and evening. partly cloudy. waves 3 to 5 feet
subsiding to 1 to 3 feet in the afternoon and evening. waves
occasionally around 7 feet.
.saturday...south winds 15 to 20 knots. light snow. waves 2 feet or
less.
.sunday...west winds 15 to 20 knots. light rain and snow. waves 1 to
3 feet.
$$
(8/19)
Latest Great Lakes Marine Forecast by KDTX
Issued 11/25/2025 3:46 PM America/New_York.
Valid through 11/26/2025 12:00 AM America/New_York.
fzus63 kdtx 252046
glflh
expires:202511260500;;499063
open lake forecast for lake huron
national weather service detroit/pontiac mi
346 pm est tue nov 25 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...weak low pressure tracks through the great lakes today
with widespread rain and modest winds. a stronger low pressure
system arriving from the midwest then rapidly deepens over the
northern great lakes wednesday into wednesday night, leading to a
long duration of gales through early friday. much cooler air
arrives with snow squalls becoming likely thursday into friday.
the next system will work through the area on sunday.
lhz463-464-260500-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
346 pm est tue nov 25 2025
...gale warning in effect from wednesday morning through friday
morning...
.tonight...southeast winds 5 to 10 knots veering to the south
after midnight...then increasing to 10 to 15 knots early in the
morning. a chance of rain. patchy fog. waves 1 to 3 feet.
.wednesday...south winds 15 to 20 knots becoming southwest at
35 knot gales with gusts to 45 knot gales. rain likely. waves
2 to 4 feet building to 10 to 14 feet. waves occasionally around
18 feet.
.wednesday night...west at 40 knot gales with gusts to 45 knot
gales. rain and snow likely in the evening...then snow likely
after midnight. waves 12 to 16 feet. waves occasionally around
20 feet.
.thursday...west at 35 knot gales with gusts to 45 knot gales.
snow likely. waves 14 to 18 feet. waves occasionally around
23 feet.
.thursday night...west at 40 knot gales with gusts to 45 knot
gales. snow likely. waves 15 to 20 feet. waves occasionally
around 25 feet.
.friday...northwest winds to 30 knots with gusts to 40 knot gales
becoming west 15 to 20 knots. a chance of snow. waves 12 to
16 feet subsiding to 6 to 9 feet late in the afternoon. waves
occasionally around 20 feet.
.saturday...west winds 10 to 15 knots backing to the southwest in
the late morning and early afternoon...then becoming south 15 to
20 knots early in the evening increasing to 20 to 25 knots in the
late evening and early morning. a chance of snow in the late
morning and early afternoon. snow until early morning. rain in
the late evening and early morning. waves 3 to 5 feet subsiding
to 1 to 3 feet in the late morning and early afternoon...then
building to 4 to 6 feet until early morning. waves occasionally
around 8 feet.
.sunday...south winds 20 to 25 knots decreasing to 15 to 20 knots
in the late morning and early afternoon...then veering to the
west until early morning. rain and snow early in the morning...
then rain likely in the late morning and early afternoon. a
chance of rain and snow until early morning. waves 4 to 6 feet.
waves occasionally around 8 feet.
$$
(9/19)
Latest Great Lakes Marine Forecast by KDTX
Issued 11/25/2025 3:46 PM America/New_York.
Valid through 11/26/2025 12:00 AM America/New_York.
fzus63 kdtx 252046
glflh
expires:202511260500;;499061
open lake forecast for lake huron
national weather service detroit/pontiac mi
346 pm est tue nov 25 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...weak low pressure tracks through the great lakes today
with widespread rain and modest winds. a stronger low pressure
system arriving from the midwest then rapidly deepens over the
northern great lakes wednesday into wednesday night, leading to a
long duration of gales through early friday. much cooler air
arrives with snow squalls becoming likely thursday into friday.
the next system will work through the area on sunday.
lhz361-362-260500-
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-
346 pm est tue nov 25 2025
...gale warning in effect from wednesday afternoon through friday
morning...
.tonight...southeast winds 5 to 10 knots increasing to 10 to
15 knots early in the morning. rain. patchy fog. waves 1 to
3 feet.
.wednesday...southeast winds 10 to 15 knots becoming south 15 to
20 knots with gusts to around 30 knots in the late morning and
early afternoon...then becoming southwest 20 to 25 knots with
gusts to 35 knot gales late in the afternoon. rain in the
morning...then a chance of rain in the afternoon. waves 2 to
4 feet building to 12 to 16 feet. waves occasionally around
20 feet.
.wednesday night...southwest winds 20 to 25 knots becoming west
to 30 knots in the late evening and early morning...then
increasing to 35 knot gales after midnight. gusts to 40 knot
gales. rain and snow in the evening...then snow after midnight.
waves 14 to 18 feet. waves occasionally around 23 feet.
.thursday...northwest at 35 knot gales with gusts to 40 knot
gales. snow. waves 15 to 20 feet. waves occasionally around
25 feet.
.thursday night...northwest at 40 knot gales. snow likely in the
evening...then a chance of snow after midnight. waves 15 to
20 feet. waves occasionally around 25 feet.
.friday...northwest winds to 30 knots decreasing to 10 to
15 knots. a chance of snow. waves 12 to 16 feet subsiding to 6 to
9 feet late in the afternoon. waves occasionally around 20 feet.
.saturday...west winds 5 to 10 knots becoming south 10 to
15 knots until early morning. snow likely in the late morning and
early afternoon. snow until early morning. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and early
afternoon...then building to 3 to 5 feet early in the evening
building to 5 to 7 feet in the late evening and early morning.
waves occasionally around 10 feet.
.sunday...south winds 10 to 15 knots becoming southwest 15 to
20 knots in the late morning and early afternoon...then veering
to the west until early morning. snow with rain likely until
afternoon...then a chance of snow and rain until early morning.
waves 4 to 6 feet.
$$
(10/19)
Latest Great Lakes Marine Forecast by KDTX
Issued 11/25/2025 3:46 PM America/New_York.
Valid through 11/26/2025 12:00 AM America/New_York.
fzus63 kdtx 252046
glflh
expires:202511260500;;499062
open lake forecast for lake huron
national weather service detroit/pontiac mi
346 pm est tue nov 25 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...weak low pressure tracks through the great lakes today
with widespread rain and modest winds. a stronger low pressure
system arriving from the midwest then rapidly deepens over the
northern great lakes wednesday into wednesday night, leading to a
long duration of gales through early friday. much cooler air
arrives with snow squalls becoming likely thursday into friday.
the next system will work through the area on sunday.
lhz363-462-260500-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
346 pm est tue nov 25 2025
...gale warning in effect from wednesday morning through friday
morning...
.tonight...southeast winds 5 to 10 knots becoming south 10 to
15 knots early in the morning. rain likely in the evening...then
a chance of rain after midnight. patchy fog. waves 1 to 3 feet.
.wednesday...south winds 15 to 20 knots becoming southwest at
35 knot gales with gusts to 45 knot gales. rain likely. waves
3 to 5 feet building to 12 to 16 feet. waves occasionally around
20 feet.
.wednesday night...west at 40 knot gales with gusts to 45 knot
gales. rain and snow. waves 14 to 18 feet. waves occasionally
around 23 feet.
.thursday...west at 40 knot gales with gusts to 45 knot gales.
snow likely in the morning...then snow in the afternoon. waves
15 to 20 feet. waves occasionally around 25 feet.
.thursday night...northwest at 40 knot gales with gusts to
45 knot gales. snow in the evening...then snow likely after
midnight. waves 18 to 23 feet. waves occasionally around 28 feet.
.friday...northwest at 35 knot gales becoming west 10 to
15 knots. a chance of snow. waves 12 to 16 feet subsiding to 8 to
12 feet late in the afternoon. waves occasionally around 20 feet.
.saturday...west winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and early afternoon...then becoming
south 15 to 20 knots until early morning. a chance of snow in the
late morning and early afternoon. snow until early morning. waves
3 to 5 feet subsiding to 1 to 3 feet in the late morning and
early afternoon...then building to 4 to 6 feet until early
morning. waves occasionally around 8 feet.
.sunday...south winds 15 to 20 knots veering to the west until
early morning. snow early in the morning...then a chance of rain
and snow. waves 5 to 7 feet. waves occasionally around 10 feet.
$$
(11/19)
Latest Great Lakes Marine Forecast by KMKX
Issued 11/25/2025 2:50 PM US/Central.
Valid through 11/25/2025 10:15 PM US/Central.
fzus63 kmkx 252050
glflm
expires:202511260415;;499145
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
250 pm cst tue nov 25 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...
light and variable winds (predominantly southeasterly) will
linger as low pressure around 29.6 inches approaches pushes across
wi this afternoon. this low pressure is expected to cross the
upper peninsula of mi through wednesday, deepening to around 29.3
inches. a cold front extending south of the low is expected to
cross lake michigan tonight, turning winds southwest and steadily
increasing toward daybreak on wednesday. strong west to northwest
winds develop over the lake wednesday. expecting storm force gust
for southern two-thirds to gale force gusts for the northern third
through the day wednesday. gale warnings are in effect across the
lake wednesday, along with a storm warning over the southern two
thirds of the open waters, where we expect the strongest winds and
highest waves especially on the east side of the lake. winds veer
due west by mid wednesday, then northwest late wednesday through
thursday night. winds are expected to decrease below storm force
by daybreak thursday, but gale warnings do remain in effect
thursday into thursday night as gusty northwest winds continue.
winds gradually subside into friday as high pressure builds into
the region from the west.
lmz080-669-671-673-675-777-779-870-872-874-876-878-260415-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
250 pm cst tue nov 25 2025
sheboygan wi to pentwater mi south...
...storm warning in effect from wednesday morning through
wednesday evening...
...gale warning in effect from late wednesday night through
thursday evening...
.tonight...southwest winds 10 to 20 kt increasing to gales to
35 kt. slight chance of rain. waves 1 to 2 ft building to 10 to
14 ft occasionally to 18 ft.
.wednesday...southwest gales to 45 kt becoming west late in the
morning, then increasing to storm force winds to 50 kt early in
the afternoon becoming northwest storm force winds to 55 kt late.
rain likely in the morning, then snow and slight chance of rain
in the afternoon. waves 12 to 16 ft occasionally to 21 ft
building to 20 to 25 ft occasionally to 33 ft.
.wednesday night...northwest storm force winds to 55 kt
diminishing to gales to 45 kt. chance of snow. waves 25 to 30 ft
occasionally to 39 ft subsiding to 18 to 23 ft occasionally to
30 ft.
.thursday...northwest gales to 45 kt diminishing to gales to
40 kt. chance of snow. waves 15 to 20 ft occasionally to 26 ft
subsiding to 14 to 18 ft occasionally to 23 ft.
.thursday night...northwest gales to 40 kt diminishing to 30 kt
overnight. chance of snow. waves 14 to 18 ft occasionally to
23 ft.
.friday...northwest winds to 30 kt diminishing to 15 to 25 kt.
chance of snow in the morning. waves 8 to 12 ft occasionally to
16 ft subsiding to 6 to 9 ft occasionally to 12 ft.
.friday night...west winds 10 to 15 kt becoming southwest. chance
of snow. waves 3 to 5 ft subsiding to 1 to 3 ft.
.saturday...south winds 15 to 25 kt increasing to 30 kt. snow.
waves 4 to 7 ft occasionally to 9 ft building to 6 to 9 ft
occasionally to 12 ft.
.sunday...northwest winds 15 to 25 kt increasing to 30 kt. chance
of rain and snow. waves 6 to 9 ft occasionally to 12 ft.
$$
(12/19)
Latest Great Lakes Marine Forecast by KMKX
Issued 11/25/2025 2:50 PM US/Central.
Valid through 11/25/2025 10:15 PM US/Central.
fzus63 kmkx 252050
glflm
expires:202511260415;;499143
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
250 pm cst tue nov 25 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...
light and variable winds (predominantly southeasterly) will
linger as low pressure around 29.6 inches approaches pushes across
wi this afternoon. this low pressure is expected to cross the
upper peninsula of mi through wednesday, deepening to around 29.3
inches. a cold front extending south of the low is expected to
cross lake michigan tonight, turning winds southwest and steadily
increasing toward daybreak on wednesday. strong west to northwest
winds develop over the lake wednesday. expecting storm force gust
for southern two-thirds to gale force gusts for the northern third
through the day wednesday. gale warnings are in effect across the
lake wednesday, along with a storm warning over the southern two
thirds of the open waters, where we expect the strongest winds and
highest waves especially on the east side of the lake. winds veer
due west by mid wednesday, then northwest late wednesday through
thursday night. winds are expected to decrease below storm force
by daybreak thursday, but gale warnings do remain in effect
thursday into thursday night as gusty northwest winds continue.
winds gradually subside into friday as high pressure builds into
the region from the west.
lmz261-362-364-563-260415-
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-
250 pm cst tue nov 25 2025
sturgeon bay wi to point betsie mi north...
...gale warning in effect from wednesday afternoon through late
thursday night...
.tonight...southeast winds 10 to 15 kt increasing to 30 kt.
chance of rain this evening, then rain overnight. waves 1 to 3 ft
building to 4 to 6 ft occasionally to 8 ft.
.wednesday...south winds to 30 kt becoming southwest 15 to 25 kt
late in the morning, then becoming west gales to 40 kt early in
the afternoon becoming northwest gales to 45 kt late. rain in the
morning, then rain and snow in the afternoon. waves 6 to 9 ft
occasionally to 12 ft building to 10 to 14 ft occasionally to
18 ft.
.wednesday night...northwest storm force winds to 50 kt
diminishing to gales to 45 kt. snow. waves 14 to 18 ft
occasionally to 23 ft.
.thursday...northwest gales to 45 kt diminishing to gales to
40 kt. snow. waves 12 to 16 ft occasionally to 21 ft subsiding to
8 to 11 ft occasionally to 14 ft.
.thursday night...northwest gales to 40 kt. snow in the evening,
then chance of snow overnight. waves 8 to 11 ft occasionally to
14 ft.
.friday...northwest winds to 30 kt. chance of snow. waves 5 to
8 ft occasionally to 10 ft subsiding to 3 to 5 ft.
.friday night...northwest winds 10 to 20 kt becoming west 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 2 ft.
.saturday...southwest winds 10 to 20 kt becoming south. chance of
snow. waves 1 to 2 ft building to 2 to 4 ft.
.sunday...north winds 15 to 25 kt becoming northwest. chance of
snow. waves 3 to 5 ft.
$$
(13/19)
Latest Great Lakes Marine Forecast by KMKX
Issued 11/25/2025 2:50 PM US/Central.
Valid through 11/25/2025 10:15 PM US/Central.
fzus63 kmkx 252050
glflm
expires:202511260415;;499144
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
250 pm cst tue nov 25 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...
light and variable winds (predominantly southeasterly) will
linger as low pressure around 29.6 inches approaches pushes across
wi this afternoon. this low pressure is expected to cross the
upper peninsula of mi through wednesday, deepening to around 29.3
inches. a cold front extending south of the low is expected to
cross lake michigan tonight, turning winds southwest and steadily
increasing toward daybreak on wednesday. strong west to northwest
winds develop over the lake wednesday. expecting storm force gust
for southern two-thirds to gale force gusts for the northern third
through the day wednesday. gale warnings are in effect across the
lake wednesday, along with a storm warning over the southern two
thirds of the open waters, where we expect the strongest winds and
highest waves especially on the east side of the lake. winds veer
due west by mid wednesday, then northwest late wednesday through
thursday night. winds are expected to decrease below storm force
by daybreak thursday, but gale warnings do remain in effect
thursday into thursday night as gusty northwest winds continue.
winds gradually subside into friday as high pressure builds into
the region from the west.
lmz366-565-567-868-260415-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
250 pm cst tue nov 25 2025
sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...
...storm warning in effect from wednesday morning through
wednesday evening...
...gale warning in effect from late wednesday night through
thursday evening...
.tonight...south winds 5 to 10 kt increasing to 10 to 20 kt late
this evening, then increasing to 30 kt after midnight becoming
southwest late. chance of rain. waves 1 ft or less building to
6 to 9 ft occasionally to 12 ft.
.wednesday...southwest winds to 30 kt becoming west gales to
40 kt late in the morning, then becoming northwest storm force
winds to 50 kt in the afternoon. rain in the morning, then rain
and snow in the afternoon. waves 12 to 16 ft occasionally to
21 ft building to 14 to 18 ft occasionally to 23 ft.
.wednesday night...northwest storm force winds to 55 kt
diminishing to gales to 45 kt. snow in the evening, then chance
of snow overnight. waves 18 to 23 ft occasionally to 30 ft
subsiding to 14 to 18 ft occasionally to 23 ft.
.thursday...northwest gales to 45 kt diminishing to gales to
40 kt. chance of snow. waves 14 to 18 ft occasionally to 23 ft.
.thursday night...northwest gales to 35 kt diminishing to 30 kt.
chance of snow in the evening. waves 10 to 14 ft occasionally to
18 ft.
.friday...northwest winds to 30 kt diminishing to 10 to 20 kt in
the afternoon. 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 15 kt becoming west 5 to
10 kt. chance of snow. waves 2 to 4 ft subsiding to 1 to 2 ft.
.saturday...south winds 10 to 20 kt becoming southeast. snow
likely. waves 2 to 4 ft building to 5 to 8 ft occasionally to
10 ft.
.sunday...northwest winds 10 to 20 kt increasing to 15 to 25 kt.
chance of snow. waves 4 to 6 ft occasionally to 8 ft.
$$
(14/19)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/25/2025 4:01 PM America/New_York.
Valid through 11/26/2025 4:00 AM America/New_York.
fzus63 kmqt 252101
glfls
expires:202511260900;;499601
open lake forecast for lake superior
national weather service marquette mi
400 pm est tue nov 25 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...
a 29.7 inch low currently over minneapolis will deepen to 29.4
inches over eastern upper michigan by wednesday afternoon. by
thursday, the low will shift into quebec, maintining 29.4 inches.
meanwhile, a 30.6 inch high will develop over the canadian prairie.
with the low lifting further northeast for friday, the high will
weaken slightly to 30.5 inches as it moves into the mississippi
river valley. the high then shifts over the lower great lakes
saturday morning while 29.7 inch low pressure develops over the ok
panhandle. this low ejects northeast, reaching the upper great lakes
at 29.7 inches sunday afternoon. monday, the low will lift into
quebec at 29.5 inches while 30.5 inch high pressure builds over the
central plains.
lsz162-260900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est tue nov 25 2025 /300 pm cst tue nov 25 2025/
...gale warning in effect through thursday morning...
.late this afternoon...northeast gales to 35 knots. a chance of
rain and snow showers. waves 5 to 9 feet occasionally to 11 feet.
.tonight...northeast gales to 35 knots becoming north gales to
45 knots by midnight. rain showers in the evening. snow showers.
waves building to 12 to 17 feet occasionally to 21 feet.
.wednesday...north gales to 40 knots backing northwest by mid
afternoon. snow showers likely in the morning, then a chance of
snow showers in the afternoon. waves subsiding to 9 to 12 feet
occasionally to 15 feet.
.wednesday night...northwest gales to 40 knots. a chance of snow
showers. waves subsiding to 5 to 8 feet occasionally to 10 feet.
.thursday...northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. a slight chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet.
.thursday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet.
.friday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet.
.friday night...northwest winds 5 to 15 knots. waves calm to
2 feet.
.saturday...north winds 5 to 15 knots increasing to 10 to
20 knots. a chance of snow showers. waves building to 1 to
3 feet.
.sunday...northwest winds 10 to 20 knots backing west. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet.
$$
(15/19)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/25/2025 4:01 PM America/New_York.
Valid through 11/26/2025 4:00 AM America/New_York.
fzus63 kmqt 252101
glfls
expires:202511260900;;499602
open lake forecast for lake superior
national weather service marquette mi
400 pm est tue nov 25 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...
a 29.7 inch low currently over minneapolis will deepen to 29.4
inches over eastern upper michigan by wednesday afternoon. by
thursday, the low will shift into quebec, maintining 29.4 inches.
meanwhile, a 30.6 inch high will develop over the canadian prairie.
with the low lifting further northeast for friday, the high will
weaken slightly to 30.5 inches as it moves into the mississippi
river valley. the high then shifts over the lower great lakes
saturday morning while 29.7 inch low pressure develops over the ok
panhandle. this low ejects northeast, reaching the upper great lakes
at 29.7 inches sunday afternoon. monday, the low will lift into
quebec at 29.5 inches while 30.5 inch high pressure builds over the
central plains.
lsz263-260900-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
400 pm est tue nov 25 2025
...gale warning in effect through thursday afternoon...
.late this afternoon...northeast winds 20 to 30 knots. a chance
of rain showers, possibly mixed with snow. waves 5 to 9 feet
occasionally to 11 feet.
.tonight...northeast gales to 40 knots becoming north gales to
45 knots late. rain showers in the evening. snow showers. a
slight chance of rain showers after midnight. waves building to
15 to 20 feet occasionally to 25 feet.
.wednesday...north gales to 45 knots with a few storm force gusts
to 50 knots possible diminishing to gales to 45 knots. snow
showers. waves subsiding to 12 to 17 feet occasionally to
21 feet.
.wednesday night...north gales to 45 knots becoming northwest
gales to 40 knots by midnight. a chance of snow showers. waves
subsiding to 9 to 12 feet occasionally to 15 feet.
.thursday...northwest gales to 40 knots. a chance of snow
showers. waves subsiding to 5 to 8 feet occasionally to 10 feet.
.thursday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to calm to 2 feet.
.friday night...northwest winds 5 to 15 knots. waves calm to
2 feet.
.saturday...north winds 5 to 15 knots increasing to 15 to
25 knots. a chance of snow showers. waves building to 2 to
4 feet.
.sunday...northwest winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet.
$$
(16/19)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/25/2025 4:01 PM America/New_York.
Valid through 11/26/2025 4:00 AM America/New_York.
fzus63 kmqt 252101
glfls
expires:202511260900;;499603
open lake forecast for lake superior
national weather service marquette mi
400 pm est tue nov 25 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...
a 29.7 inch low currently over minneapolis will deepen to 29.4
inches over eastern upper michigan by wednesday afternoon. by
thursday, the low will shift into quebec, maintining 29.4 inches.
meanwhile, a 30.6 inch high will develop over the canadian prairie.
with the low lifting further northeast for friday, the high will
weaken slightly to 30.5 inches as it moves into the mississippi
river valley. the high then shifts over the lower great lakes
saturday morning while 29.7 inch low pressure develops over the ok
panhandle. this low ejects northeast, reaching the upper great lakes
at 29.7 inches sunday afternoon. monday, the low will lift into
quebec at 29.5 inches while 30.5 inch high pressure builds over the
central plains.
lsz264-260900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est tue nov 25 2025
...gale warning in effect from 10 pm est this evening through
thursday evening...
.late this afternoon...northeast winds 20 to 30 knots. a chance
of rain showers, possibly mixed with snow. waves 4 to 7 feet
occasionally to 9 feet.
.tonight...northeast gales to 45 knots. rain showers likely in
the evening. snow showers. a slight chance of rain showers after
midnight. waves building to 12 to 17 feet occasionally to
21 feet.
.wednesday...north gales to 45 knots with a few storm force gusts
to 50 knots possible diminishing to gales to 45 knots. snow
showers. waves building to 15 to 20 feet occasionally to 25 feet.
.wednesday night...north gales to 45 knots. snow showers in the
evening, then a chance of snow showers after midnight. waves
subsiding to 12 to 17 feet occasionally to 21 feet.
.thursday...northwest gales to 40 knots. a chance of snow
showers. waves subsiding to 9 to 12 feet occasionally to 15 feet.
.thursday night...northwest gales to 35 knots diminishing to
20 to 30 knots after midnight. waves subsiding to 5 to 8 feet
occasionally to 10 feet.
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to 2 to 4 feet.
.friday night...northwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet.
.saturday...northwest winds 5 to 15 knots becoming north 15 to
25 knots. a chance of snow showers. waves building to 2 to
4 feet.
.sunday...northwest winds 15 to 25 knots. a chance of snow
showers. waves building to 3 to 6 feet occasionally to 8 feet.
$$
(17/19)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/25/2025 4:01 PM America/New_York.
Valid through 11/26/2025 4:00 AM America/New_York.
fzus63 kmqt 252101
glfls
expires:202511260900;;499604
open lake forecast for lake superior
national weather service marquette mi
400 pm est tue nov 25 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...
a 29.7 inch low currently over minneapolis will deepen to 29.4
inches over eastern upper michigan by wednesday afternoon. by
thursday, the low will shift into quebec, maintining 29.4 inches.
meanwhile, a 30.6 inch high will develop over the canadian prairie.
with the low lifting further northeast for friday, the high will
weaken slightly to 30.5 inches as it moves into the mississippi
river valley. the high then shifts over the lower great lakes
saturday morning while 29.7 inch low pressure develops over the ok
panhandle. this low ejects northeast, reaching the upper great lakes
at 29.7 inches sunday afternoon. monday, the low will lift into
quebec at 29.5 inches while 30.5 inch high pressure builds over the
central plains.
lsz265-260900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est tue nov 25 2025
...gale warning in effect from 10 pm est this evening through
thursday evening...
.late this afternoon...northeast winds 20 to 30 knots. rain
showers. waves 3 to 6 feet occasionally to 8 feet.
.tonight...northeast gales to 45 knots. rain showers. snow
showers after midnight. waves building to 10 to 14 feet
occasionally to 18 feet.
.wednesday...northeast gales to 45 knots backing north by late
morning, then increasing to gales to 45 knots with a few storm
force gusts to 50 knots possible by mid afternoon. a slight
chance of rain showers in the morning. snow showers. waves
building to 15 to 20 feet occasionally to 25 feet.
.wednesday night...north gales to 45 knots with a few storm force
gusts to 55 knots possible becoming northwest gales to 45 knots
with a few storm force gusts to 50 knots possible late. snow
showers. waves subsiding to 12 to 17 feet occasionally to
21 feet.
.thursday...northwest gales to 45 knots. snow showers. waves
subsiding to 9 to 12 feet occasionally to 15 feet.
.thursday night...northwest gales to 40 knots. snow showers
likely in the evening, then a chance of snow showers after
midnight. waves subsiding to 5 to 8 feet occasionally to 10 feet.
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. a chance of snow showers. waves
subsiding to 2 to 4 feet.
.friday night...northwest winds 10 to 20 knots backing west after
midnight. a chance of snow showers. waves subsiding to calm to
2 feet.
.saturday...west winds 10 to 20 knots becoming north 15 to
25 knots. snow showers likely. waves building to 1 to 3 feet.
.sunday...northwest winds 20 to 30 knots becoming west 15 to
25 knots. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet.
$$
(18/19)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/25/2025 4:01 PM America/New_York.
Valid through 11/26/2025 4:00 AM America/New_York.
fzus63 kmqt 252101
glfls
expires:202511260900;;499605
open lake forecast for lake superior
national weather service marquette mi
400 pm est tue nov 25 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...
a 29.7 inch low currently over minneapolis will deepen to 29.4
inches over eastern upper michigan by wednesday afternoon. by
thursday, the low will shift into quebec, maintining 29.4 inches.
meanwhile, a 30.6 inch high will develop over the canadian prairie.
with the low lifting further northeast for friday, the high will
weaken slightly to 30.5 inches as it moves into the mississippi
river valley. the high then shifts over the lower great lakes
saturday morning while 29.7 inch low pressure develops over the ok
panhandle. this low ejects northeast, reaching the upper great lakes
at 29.7 inches sunday afternoon. monday, the low will lift into
quebec at 29.5 inches while 30.5 inch high pressure builds over the
central plains.
lsz266-260900-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
400 pm est tue nov 25 2025
...gale warning in effect from 1 am est wednesday through late
thursday night...
.late this afternoon...northeast winds 20 to 30 knots. rain
showers. waves 3 to 6 feet occasionally to 8 feet.
.tonight...northeast winds 20 to 30 knots increasing to gales to
40 knots by midnight. rain showers, possibly mixed with snow.
waves building to 10 to 14 feet occasionally to 18 feet.
.wednesday...northeast gales to 45 knots backing north. rain
showers in the morning. snow showers. a slight chance of rain
showers in the afternoon. waves building to 15 to 20 feet
occasionally to 25 feet.
.wednesday night...north gales to 45 knots with a few storm force
gusts to 55 knots possible. snow showers. waves building to 17 to
22 feet occasionally to 28 feet, then subsiding to 15 to 20 feet
occasionally to 25 feet.
.thursday...north gales to 45 knots backing northwest in the
afternoon. snow showers. waves subsiding to 12 to 17 feet
occasionally to 21 feet.
.thursday night...northwest gales to 40 knots. snow showers.
waves subsiding to 9 to 12 feet occasionally to 15 feet.
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. snow showers. waves subsiding to 4 to
7 feet occasionally to 9 feet.
.friday night...northwest winds 10 to 20 knots backing west after
midnight. snow showers likely in the evening. a chance of snow
showers after midnight. waves subsiding to 1 to 3 feet.
.saturday...west winds 10 to 20 knots veering north. snow
showers. waves subsiding to calm to 2 feet, then building to 2 to
4 feet.
.sunday...northwest winds 20 to 30 knots. a chance of snow
showers, then snow showers likely. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
$$
(19/19)
Latest Great Lakes Marine Forecast by KMQT
Issued 11/25/2025 4:01 PM America/New_York.
Valid through 11/26/2025 4:00 AM America/New_York.
fzus63 kmqt 252101
glfls
expires:202511260900;;499606
open lake forecast for lake superior
national weather service marquette mi
400 pm est tue nov 25 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...
a 29.7 inch low currently over minneapolis will deepen to 29.4
inches over eastern upper michigan by wednesday afternoon. by
thursday, the low will shift into quebec, maintining 29.4 inches.
meanwhile, a 30.6 inch high will develop over the canadian prairie.
with the low lifting further northeast for friday, the high will
weaken slightly to 30.5 inches as it moves into the mississippi
river valley. the high then shifts over the lower great lakes
saturday morning while 29.7 inch low pressure develops over the ok
panhandle. this low ejects northeast, reaching the upper great lakes
at 29.7 inches sunday afternoon. monday, the low will lift into
quebec at 29.5 inches while 30.5 inch high pressure builds over the
central plains.
lsz267-260900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est tue nov 25 2025
...gale warning in effect from wednesday afternoon through late
thursday night...
.late this afternoon...east winds 15 to 25 knots. rain showers.
waves 3 to 5 feet occasionally to 7 feet.
.tonight...east winds 20 to 30 knots. rain showers. waves
building to 6 to 9 feet occasionally to 11 feet.
.wednesday...east gales to 35 knots backing north by mid
afternoon. rain showers in the morning. snow showers. a slight
chance of rain showers in the afternoon. waves building to 9 to
12 feet occasionally to 15 feet.
.wednesday night...north gales to 45 knots. snow showers. waves
building to 15 to 20 feet occasionally to 25 feet.
.thursday...north gales to 45 knots backing northwest in the
afternoon. snow showers. waves subsiding to 12 to 17 feet
occasionally to 21 feet.
.thursday night...northwest gales to 40 knots. snow showers.
waves subsiding to 8 to 11 feet occasionally to 14 feet.
.friday...northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. snow showers. waves subsiding to 4 to
7 feet occasionally to 9 feet.
.friday night...northwest winds 10 to 20 knots. snow showers
likely in the evening, then a chance of snow showers after
midnight. waves subsiding to 1 to 3 feet.
.saturday...southwest winds 10 to 20 knots backing south. snow
showers. waves subsiding to calm to 2 feet, then building to 1 to
3 feet.
.sunday...northwest winds 15 to 25 knots. snow showers. waves
building to 4 to 7 feet occasionally to 9 feet.
$$
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