(1/17)
Latest Great Lakes Marine Forecast by KBUF
Issued 3/5/2026 10:03 PM America/New_York.
Valid through 3/6/2026 5:00 AM America/New_York.
fzus61 kbuf 060303
glflo
expires:202603061000;;700802
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est thu mar 5 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a 30.0 inch low just south of lake erie this evening
will weaken to a 30.2 inch low across western ny tonight. another
29.6 inch low will lift across the upper great lakes saturday, with
its trailing cold front crossing the lake saturday night. a large
30.1 inch high will then move from the lower ohio valley to the mid
atlantic region sunday and monday while ridging north across the
lake. a 28.9 inch low may move across james bay monday while
pressure averages 29.9 inches across the lake tuesday.
loz064-065-061000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est thu mar 5 2026
.rest of tonight...northeast winds 15 to 20 knots becoming east
10 to 15 knots. rain with freezing rain likely. waves 2 to 4 feet
subsiding to 1 to 3 feet.
.friday...east winds 10 to 15 knots becoming southeast. waves
1 to 3 feet.
.friday night...southeast winds 15 to 25 knots becoming south to
30 knots. rain showers overnight. waves 1 to 3 feet building to
3 to 6 feet.
.saturday...south winds 20 to 25 knots. showers. waves 3 to
6 feet.
.saturday night...southwest winds 15 to 20 knots becoming west.
rain showers in the evening, then rain showers likely overnight.
waves 3 to 6 feet.
.sunday...west winds 10 to 15 knots becoming southwest 15 to
20 knots. waves 2 to 4 feet building to 3 to 6 feet.
.monday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet.
.tuesday...east winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. a chance of rain showers during the
day, then rain showers tuesday night. waves 2 to 4 feet building
to 3 to 6 feet.
winds and waves higher in and near thunderstorms.
$$
(2/17)
Latest Great Lakes Marine Forecast by KBUF
Issued 3/5/2026 10:03 PM America/New_York.
Valid through 3/6/2026 5:00 AM America/New_York.
fzus61 kbuf 060303
glflo
expires:202603061000;;700801
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est thu mar 5 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a 30.0 inch low just south of lake erie this evening
will weaken to a 30.2 inch low across western ny tonight. another
29.6 inch low will lift across the upper great lakes saturday, with
its trailing cold front crossing the lake saturday night. a large
30.1 inch high will then move from the lower ohio valley to the mid
atlantic region sunday and monday while ridging north across the
lake. a 28.9 inch low may move across james bay monday while
pressure averages 29.9 inches across the lake tuesday.
loz062-063-061000-
lake ontario open waters from the niagara river to sodus bay-
1002 pm est thu mar 5 2026
.rest of tonight...northeast winds 15 to 25 knots becoming east.
rain with freezing rain likely late this evening, then rain
likely after midnight. waves 5 to 8 feet subsiding to 3 to
6 feet. waves occasionally around 10 feet.
.friday...east winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet.
.friday night...east winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. a chance of rain showers in the
evening, then rain showers likely with a chance of thunderstorms
overnight. waves 1 to 2 feet building to 3 to 5 feet.
.saturday...south winds 15 to 25 knots becoming southwest to
30 knots. showers likely in the morning, then showers with a
chance of thunderstorms in the afternoon. waves 3 to 5 feet
building to 4 to 7 feet. waves occasionally around 9 feet.
.saturday night...southwest winds 15 to 25 knots becoming west.
rain showers with a chance of thunderstorms in the evening, then
a chance of rain showers overnight. waves 4 to 7 feet subsiding
to 3 to 6 feet. waves occasionally around 9 feet.
.sunday...west winds 10 to 15 knots becoming southwest and
increasing to 15 to 25 knots. waves 2 to 4 feet building to 3 to
6 feet.
.monday...southwest winds 15 to 25 knots becoming west. waves
3 to 6 feet subsiding to 2 to 4 feet.
.tuesday...northeast winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. a chance of rain showers during the
day, then rain showers tuesday night. waves 2 to 4 feet building
to 3 to 6 feet.
winds and waves higher in and near thunderstorms.
$$
(3/17)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/5/2026 9:22 PM America/New_York.
Valid through 3/6/2026 4:15 AM America/New_York.
fzus61 kcle 060222
glfle
expires:202603060915;;699495
open lake forecast for lake erie
national weather service cleveland oh
922 pm est thu mar 5 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
a stalled frontal boundary will waver over northern ohio tonight
before it lifts northward across lake erie as a warm front
tomorrow. low pressure 29.70 inches will track northeast through
the upper midwest and upper great lakes on saturday. a trailing
cold front will sweep eastward across lake erie saturday evening.
a ridge averaging 30.10 inches will build into the ohio valley
region sunday before shifting east by monday into tuesday.
lez164>166-060915-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-
922 pm est thu mar 5 2026
...dense fog advisory in effect until 10 am est friday...
.rest of tonight...northeast winds 10 knots or less becoming
east. a slight chance of rain late this evening. areas of dense
fog. waves in ice free areas 1 foot or less.
.friday...east winds 10 knots or less becoming southeast. areas
of dense fog early. a slight chance of rain late. waves 1 foot or
less.
.friday night...southeast winds around 10 knots becoming south
and increasing to 15 to 20 knots. a chance of rain. waves 1 to
3 feet.
.saturday...south winds 15 to 25 knots becoming southwest. rain.
waves 2 to 4 feet building to 3 to 5 feet.
.saturday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of rain in the evening. waves 2 to 4 feet
subsiding to 1 to 3 feet.
.sunday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet.
.monday...southwest winds 15 to 20 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet.
.tuesday...south winds 15 to 25 knots. a chance of rain during
the day, then rain tuesday night. waves 1 to 3 feet building to
3 to 6 feet.
wave heights are for ice free areas.
$$
(4/17)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/5/2026 9:22 PM America/New_York.
Valid through 3/6/2026 4:15 AM America/New_York.
fzus61 kcle 060222
glfle
expires:202603060915;;699496
open lake forecast for lake erie
national weather service cleveland oh
922 pm est thu mar 5 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
a stalled frontal boundary will waver over northern ohio tonight
before it lifts northward across lake erie as a warm front
tomorrow. low pressure 29.70 inches will track northeast through
the upper midwest and upper great lakes on saturday. a trailing
cold front will sweep eastward across lake erie saturday evening.
a ridge averaging 30.10 inches will build into the ohio valley
region sunday before shifting east by monday into tuesday.
lez061-167>169-060915-
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-
922 pm est thu mar 5 2026
.rest of tonight...northeast winds 5 to 15 knots diminishing to
less than 10 knots. a chance of rain with a slight chance of snow
late this evening. patchy fog. the lake is mostly ice covered.
.friday...east winds less than 10 knots. patchy fog early.
.friday night...southeast winds 5 to 15 knots becoming south
15 to 20 knots. a chance of rain.
.saturday...south winds 15 to 20 knots becoming southwest. rain.
.saturday night...southwest winds 15 to 20 knots becoming west
5 to 15 knots. a chance of rain in the evening.
.sunday...southwest winds 10 to 15 knots increasing to 15 to
20 knots.
.monday...southwest winds 15 to 20 knots.
.tuesday...south winds 10 to 15 knots increasing to 15 to
25 knots. a chance of rain during the day, then rain tuesday
night.
waves omitted due to the lake being mostly ice covered.
$$
(5/17)
Latest Great Lakes Marine Forecast by KCLE
Issued 3/5/2026 9:22 PM America/New_York.
Valid through 3/6/2026 4:15 AM America/New_York.
fzus61 kcle 060222
glfle
expires:202603060915;;699494
open lake forecast for lake erie
national weather service cleveland oh
922 pm est thu mar 5 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
a stalled frontal boundary will waver over northern ohio tonight
before it lifts northward across lake erie as a warm front
tomorrow. low pressure 29.70 inches will track northeast through
the upper midwest and upper great lakes on saturday. a trailing
cold front will sweep eastward across lake erie saturday evening.
a ridge averaging 30.10 inches will build into the ohio valley
region sunday before shifting east by monday into tuesday.
lez162-163-060915-
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-
922 pm est thu mar 5 2026
...dense fog advisory in effect until 10 am est friday...
.rest of tonight...northeast winds 5 to 10 knots becoming east.
areas of dense fog. waves in ice free areas 1 foot or less.
.friday...east winds 5 to 10 knots becoming southeast. areas of
dense fog early. a slight chance of rain in the afternoon. waves
1 foot or less.
.friday night...southeast winds 10 to 15 knots becoming south
15 to 20 knots. a chance of rain. waves 1 to 3 feet.
.saturday...southwest winds 15 to 20 knots. rain. waves 1 to
3 feet.
.saturday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet subsiding to 1 foot or less.
.sunday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet.
.monday...southwest winds 15 to 20 knots. waves 1 to 3 feet.
.tuesday...south winds 15 to 25 knots becoming southwest. a
chance of rain during the day, then rain tuesday night. waves
1 to 3 feet building to 3 to 5 feet.
wave heights are for ice free areas.
$$
(6/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/5/2026 10:09 PM America/New_York.
Valid through 3/6/2026 6:15 AM America/New_York.
fzus63 kdtx 060309
glfsc
expires:202603061115;;701172
lake st clair forecast
national weather service detroit/pontiac mi
1009 pm est thu mar 5 2026
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...another low, 29.40 inches, will move into the northern
great lakes by saturday providing an uptick in winds and showers
out ahead of it. potential exists for some thunderstorms. the
system's cold front should pass through the central great lakes
saturday afternoon/evening leading to drier conditions for the
rest of the weekend.
lcz460-061115-
lake st clair-
1009 pm est thu mar 5 2026
...dense fog advisory in effect until 10 am est friday...
.rest of tonight...east winds 5 to 10 knots becoming light and variable.
cloudy. scattered light showers early in the evening. areas of
dense fog.
.friday...southeast winds 5 to 10 knots. mostly cloudy. areas of
dense fog early in the morning...then patchy dense fog in the late
morning and afternoon.
.friday night...south winds 10 to 15 knots increasing to 15 to 20
knots after midnight. mostly cloudy. a chance of light rain. a
chance of thunderstorms by midnight.
.saturday...southwest winds 15 to 20 knots increasing to 20 to 25
knots in the late morning and afternoon. light rain until late
afternoon. light rain likely early in the afternoon.
.saturday night...west winds 15 to 20 knots diminishing to 5 to 10
knots. mostly cloudy becoming partly cloudy.
.sunday...southwest winds 10 to 15 knots increasing to 15 to 20
knots in the afternoon and evening. mostly clear in the morning then
clearing.
.monday...west winds 15 to 20 knots. clear.
.tuesday...east winds 15 to 20 knots. light rain.
waves omitted due to ice coverage.
$$
(7/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/5/2026 10:07 PM America/New_York.
Valid through 3/6/2026 6:15 AM America/New_York.
fzus63 kdtx 060307
glflh
expires:202603061115;;701121
open lake forecast for lake huron
national weather service detroit/pontiac mi
1007 pm est thu mar 5 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...another low, 29.40 inches, will move into the northern
great lakes by saturday providing an uptick in winds and showers
out ahead of it. potential exists for some thunderstorms. the
system's cold front should pass through the central great lakes
saturday afternoon/evening leading to drier conditions for the
rest of the weekend.
lhz463-464-061115-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
1007 pm est thu mar 5 2026
.rest of tonight...east winds 5 to 10 knots veering to the
southeast early in the morning. patchy fog this evening...then
areas of fog after midnight.
.friday...southeast winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. areas of fog in the morning.
.friday night...southeast winds 10 to 15 knots becoming south
15 to 20 knots in the late evening and overnight. a chance of
rain and thunderstorms.
.saturday...south winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and early afternoon...then becoming
southwest 15 to 20 knots early in the afternoon. rain likely in
the morning...then a chance of rain in the afternoon.
.saturday night...west winds 15 to 20 knots decreasing to 5 to
10 knots.
.sunday...southwest winds 10 to 15 knots increasing to 15 to
20 knots.
.monday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots early in the evening...then veering to the northwest by
midnight.
.tuesday...north winds 10 to 15 knots becoming northeast 15 to
20 knots by midnight. rain.
waves omitted due to ice coverage.
$$
(8/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/5/2026 10:07 PM America/New_York.
Valid through 3/6/2026 6:15 AM America/New_York.
fzus63 kdtx 060307
glflh
expires:202603061115;;701119
open lake forecast for lake huron
national weather service detroit/pontiac mi
1007 pm est thu mar 5 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...another low, 29.40 inches, will move into the northern
great lakes by saturday providing an uptick in winds and showers
out ahead of it. potential exists for some thunderstorms. the
system's cold front should pass through the central great lakes
saturday afternoon/evening leading to drier conditions for the
rest of the weekend.
lhz361-362-061115-
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-
1007 pm est thu mar 5 2026
.rest of tonight...east winds 10 to 15 knots. patchy fog after
midnight. waves 3 to 5 feet.
.friday...southeast winds 10 to 15 knots. patchy fog in the
morning. waves 2 to 4 feet.
.friday night...southeast winds 10 to 15 knots veering to the
south after midnight. rain and a chance of thunderstorms in the
evening...then a chance of thunderstorms after midnight. waves
3 to 5 feet.
.saturday...south winds 15 to 20 knots becoming southwest 20 to
25 knots early in the afternoon. a chance of rain and
thunderstorms in the morning. waves 5 to 7 feet. waves
occasionally around 10 feet.
.saturday night...west winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 5 to 7 feet
subsiding to 2 to 4 feet after midnight. waves occasionally
around 10 feet.
.sunday...southwest winds 15 to 20 knots with gusts to around
30 knots increasing to 20 to 25 knots with gusts to around
30 knots late in the evening. waves 5 to 7 feet building to 6 to
9 feet late in the evening. waves occasionally around 12 feet.
.monday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
early afternoon...then becoming west 10 to 15 knots early in the
evening veering to the northwest by midnight. waves 6 to 9 feet
subsiding to 3 to 5 feet by midnight. waves occasionally around
12 feet.
.tuesday...northwest winds 10 to 15 knots veering to the north in
the late morning and early afternoon...then becoming northeast
15 to 20 knots early in the evening increasing to 20 to 25 knots
by midnight. a chance of rain and freezing rain likely early in
the evening. snow...rain and freezing rain likely by midnight.
waves 5 to 7 feet building to 8 to 12 feet by midnight. waves
occasionally around 15 feet.
wave heights are for ice free areas.
$$
(9/17)
Latest Great Lakes Marine Forecast by KDTX
Issued 3/5/2026 10:07 PM America/New_York.
Valid through 3/6/2026 6:15 AM America/New_York.
fzus63 kdtx 060307
glflh
expires:202603061115;;701120
open lake forecast for lake huron
national weather service detroit/pontiac mi
1007 pm est thu mar 5 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...another low, 29.40 inches, will move into the northern
great lakes by saturday providing an uptick in winds and showers
out ahead of it. potential exists for some thunderstorms. the
system's cold front should pass through the central great lakes
saturday afternoon/evening leading to drier conditions for the
rest of the weekend.
lhz363-462-061115-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
1007 pm est thu mar 5 2026
.rest of tonight...east winds 5 to 10 knots. areas of fog after
midnight.
.friday...southeast winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. patchy fog in the morning.
.friday night...southeast winds 15 to 20 knots veering to the
south after midnight. rain and a chance of thunderstorms in the
evening...then a chance of rain and thunderstorms after midnight.
.saturday...south winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late morning and
early afternoon...then becoming southwest 15 to 20 knots with
gusts to around 30 knots early in the afternoon. a chance of rain
and thunderstorms in the morning.
.saturday night...west winds 15 to 20 knots decreasing to 5 to
10 knots.
.sunday...southwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots late in the morning...then
decreasing to 15 to 20 knots with gusts to around 30 knots late
in the afternoon.
.monday...southwest winds 20 to 25 knots with gusts to around
30 knots becoming south 15 to 20 knots with gusts to around
30 knots in the late morning and early afternoon...then becoming
southwest 10 to 15 knots early in the evening veering to the
northwest by midnight.
.tuesday...north winds 10 to 15 knots becoming northeast 15 to
20 knots . rain.
waves omitted due to ice coverage.
$$
(10/17)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/5/2026 9:22 PM US/Central.
Valid through 3/6/2026 4:45 AM US/Central.
fzus63 kmkx 060322
glflm
expires:202603061045;;701715
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
922 pm cst thu mar 5 2026
for waters beyond five nautical miles of shore on lake michigan.
waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.
.synopsis...
low pressure around 29.5 inches will develop in the central
plains tonight and track toward the upper mississippi river valley
by friday evening. this low will move near or just north of lake
michigan later friday night into saturday morning, quickly moving
into quebec by saturday evening. dense fog will likely persist
across at least the south half of the lake through tonight.
as the low passes to the north, breezy southerly winds will
develop for friday afternoon and night, then shifting west to
northwest on saturday with the passage of the cold front.
widespread rain and embedded thunderstorms will accompany the
approaching and passing low friday into friday night. breezy
southwest winds are then forecast for sunday into monday.
lmz261-362-364-366-563-565-567-868-061045-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
922 pm cst thu mar 5 2026
sheboygan wi to pentwater mi north...
.rest of tonight...east winds 10 to 20 kt becoming southeast.
patchy dense fog through early evening, then patchy fog
overnight. slight chance of light freezing rain through early
evening, then chance of light freezing rain overnight. waves 2 to
4 ft subsiding to 1 to 2 ft.
.friday...southeast winds 10 to 20 kt increasing to 30 kt. patchy
fog. slight chance of light freezing rain in the morning, then
rain and slight chance of thunderstorms in the afternoon. waves
1 to 2 ft building to 4 to 6 ft occasionally to 8 ft.
.friday night...south winds 15 to 25 kt becoming southwest gales
to 35 kt. patchy dense fog in the evening. rain with a chance of
thunderstorms. waves 4 to 6 ft occasionally to 8 ft building to
6 to 9 ft occasionally to 12 ft.
.saturday...southwest gales to 35 kt becoming northwest to 30 kt.
chance of rain in the morning. waves 6 to 9 ft occasionally to
12 ft.
.saturday night...west winds 10 to 20 kt becoming southwest to
30 kt overnight. waves 3 to 5 ft building to 4 to 6 ft
occasionally to 8 ft.
.sunday...southwest gales to 40 kt. waves 6 to 9 ft occasionally
to 12 ft.
.sunday night...southwest gales to 40 kt. waves 8 to 11 ft
occasionally to 14 ft.
.monday...southwest winds to 30 kt diminishing to 15 to 25 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft.
.tuesday...east winds 15 to 25 kt becoming southeast. chance of
rain and snow. waves 4 to 7 ft occasionally to 9 ft building to
5 to 8 ft occasionally to 10 ft.
wave forecast is for ice free areas
$$
(11/17)
Latest Great Lakes Marine Forecast by KMKX
Issued 3/5/2026 9:22 PM US/Central.
Valid through 3/6/2026 4:45 AM US/Central.
fzus63 kmkx 060322
glflm
expires:202603061045;;701716
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
922 pm cst thu mar 5 2026
for waters beyond five nautical miles of shore on lake michigan.
waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.
.synopsis...
low pressure around 29.5 inches will develop in the central
plains tonight and track toward the upper mississippi river valley
by friday evening. this low will move near or just north of lake
michigan later friday night into saturday morning, quickly moving
into quebec by saturday evening. dense fog will likely persist
across at least the south half of the lake through tonight.
as the low passes to the north, breezy southerly winds will
develop for friday afternoon and night, then shifting west to
northwest on saturday with the passage of the cold front.
widespread rain and embedded thunderstorms will accompany the
approaching and passing low friday into friday night. breezy
southwest winds are then forecast for sunday into monday.
lmz080-669-671-673-675-777-779-870-872-874-876-878-061045-
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-
922 pm cst thu mar 5 2026
sheboygan wi to pentwater mi south...
...dense fog advisory in effect until 6 am cst friday...
.rest of tonight...east winds 10 to 15 kt becoming southeast.
areas of dense fog through early evening, then widespread dense
fog overnight. waves 1 to 2 ft.
.friday...southeast winds 10 to 15 kt becoming south to 30 kt.
areas of dense fog. chance of rain in the morning, then rain
likely with a chance of thunderstorms in the afternoon. waves
1 to 2 ft building to 4 to 6 ft occasionally to 8 ft.
.friday night...south winds to 30 kt increasing to gales to
35 kt. areas of dense fog in the evening. chance of rain and
thunderstorms in the evening, then rain with a chance of
thunderstorms overnight. waves 4 to 6 ft occasionally to 8 ft
building to 6 to 9 ft occasionally to 12 ft.
.saturday...southwest gales to 35 kt becoming west to 30 kt. rain
likely in the morning. waves 6 to 9 ft occasionally to 12 ft.
.saturday night...northwest winds 10 to 15 kt becoming west 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft.
.sunday...southwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft.
.sunday night...southwest winds to 30 kt. waves 7 to 10 ft
occasionally to 13 ft.
.monday...southwest winds to 30 kt diminishing to 15 to 25 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft.
.tuesday...southeast winds 15 to 25 kt becoming south. rain
likely. waves 5 to 8 ft occasionally to 10 ft.
wave forecast is for ice free areas
$$
(12/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/5/2026 10:00 PM America/New_York.
Valid through 3/6/2026 4:00 AM America/New_York.
fzus63 kmqt 060300
glfls
expires:202603060900;;700615
open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu mar 5 2026
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
lake superior is currently between a 30.7 inch high over quebec and
a 29.5 inch low over eastern colorado. as the high continues to
shift east, the low will elongate across the mississippi river
valley friday night at 29.6 inches. the low then deepens to 29.4
inches over the ontario/quebec line late saturday morning. as the
low further deepens to 29.2 inches over quebec saturday evening, a
30.1 inch high over the central to southern plains will project a
weak 29.8 inch ridge over the lake. this ridge is kicked east by a
29.1 inch low that transits northern ontario sunday, reaching
northwest quebec overnight into monday as a secondary low pressure
trails behind near the northern shores of lake superior. the low
slowly exits the area monday before being replaced by a 30.3 inch
high over northern ontario tuesday. the high slowly moves into
quebec wednesday.
lsz267-060900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est thu mar 5 2026
.rest of tonight...southeast winds 15 to 25 knots. patchy fog
after midnight. waves 1 to 3 feet building to 2 to 4 feet.
.friday...southeast winds 15 to 25 knots. patchy fog in the
morning. areas of drizzle and patchy freezing drizzle in the
morning, then a chance of rain showers in the afternoon. waves
2 to 4 feet.
.friday night...southeast winds 15 to 25 knots becoming south
10 to 20 knots by midnight. rain showers. waves subsiding to calm
to 2 feet.
.saturday...northwest winds 20 to 30 knots. rain showers,
possibly mixed with snow in the morning. waves building to 5 to
9 feet occasionally to 11 feet.
.saturday night...west winds 10 to 20 knots becoming south gales
to 35 knots after midnight. waves subsiding to 2 to 4 feet, then
building to 5 to 8 feet occasionally to 10 feet.
.sunday...southwest gales to 40 knots. waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet.
.sunday night...southwest gales to 35 knots. waves subsiding to
4 to 7 feet occasionally to 9 feet, then building to 6 to 9 feet
occasionally to 11 feet.
.monday...west gales to 35 knots becoming northwest 10 to
20 knots. waves subsiding to 2 to 4 feet.
.tuesday...east winds 15 to 25 knots becoming northeast gales to
35 knots. a chance of snow showers, possibly mixed with rain,
then snow showers, possibly mixed with rain and freezing rain
likely. waves building to 7 to 10 feet occasionally to 13 feet.
$$
(13/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/5/2026 10:00 PM America/New_York.
Valid through 3/6/2026 4:00 AM America/New_York.
fzus63 kmqt 060300
glfls
expires:202603060900;;700614
open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu mar 5 2026
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
lake superior is currently between a 30.7 inch high over quebec and
a 29.5 inch low over eastern colorado. as the high continues to
shift east, the low will elongate across the mississippi river
valley friday night at 29.6 inches. the low then deepens to 29.4
inches over the ontario/quebec line late saturday morning. as the
low further deepens to 29.2 inches over quebec saturday evening, a
30.1 inch high over the central to southern plains will project a
weak 29.8 inch ridge over the lake. this ridge is kicked east by a
29.1 inch low that transits northern ontario sunday, reaching
northwest quebec overnight into monday as a secondary low pressure
trails behind near the northern shores of lake superior. the low
slowly exits the area monday before being replaced by a 30.3 inch
high over northern ontario tuesday. the high slowly moves into
quebec wednesday.
lsz266-060900-
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 mar 5 2026
.rest of tonight...southeast winds 15 to 25 knots. patchy fog
after midnight. patchy freezing drizzle after midnight. waves
3 to 5 feet occasionally to 7 feet subsiding to 2 to 4 feet.
.friday...southeast winds 15 to 25 knots veering south by late
morning, then backing southeast by mid afternoon. patchy fog in
the morning. patchy drizzle and freezing drizzle in the morning,
then a chance of rain showers in the afternoon. waves 2 to
4 feet.
.friday night...south winds 10 to 20 knots becoming west 15 to
25 knots late. a chance of rain showers and a slight chance of
thunderstorms in the evening, then rain showers after midnight.
waves subsiding to 1 to 3 feet.
.saturday...northwest gales to 35 knots. a chance of rain and
snow showers in the morning. waves building to 5 to 9 feet
occasionally to 11 feet.
.saturday night...west winds 15 to 25 knots becoming southwest
gales to 40 knots after midnight. waves subsiding to 2 to 4 feet,
then building to 5 to 8 feet occasionally to 10 feet.
.sunday...southwest gales to 40 knots. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet.
.sunday night...southwest gales to 35 knots. waves subsiding to
4 to 7 feet occasionally to 9 feet, then building to 6 to 9 feet
occasionally to 11 feet.
.monday...west gales to 35 knots becoming north 15 to 25 knots.
waves subsiding to 2 to 4 feet, then building to 3 to 6 feet
occasionally to 8 feet.
.tuesday...east winds 20 to 30 knots becoming northeast gales to
35 knots. a chance of rain showers. a chance of snow showers.
rain showers likely. waves building to 9 to 12 feet occasionally
to 15 feet.
$$
(14/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/5/2026 10:00 PM America/New_York.
Valid through 3/6/2026 4:00 AM America/New_York.
fzus63 kmqt 060300
glfls
expires:202603060900;;700610
open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu mar 5 2026
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
lake superior is currently between a 30.7 inch high over quebec and
a 29.5 inch low over eastern colorado. as the high continues to
shift east, the low will elongate across the mississippi river
valley friday night at 29.6 inches. the low then deepens to 29.4
inches over the ontario/quebec line late saturday morning. as the
low further deepens to 29.2 inches over quebec saturday evening, a
30.1 inch high over the central to southern plains will project a
weak 29.8 inch ridge over the lake. this ridge is kicked east by a
29.1 inch low that transits northern ontario sunday, reaching
northwest quebec overnight into monday as a secondary low pressure
trails behind near the northern shores of lake superior. the low
slowly exits the area monday before being replaced by a 30.3 inch
high over northern ontario tuesday. the high slowly moves into
quebec wednesday.
lsz162-060900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est thu mar 5 2026 /900 pm cst thu mar 5 2026/
.rest of tonight...northeast winds 10 to 20 knots diminishing to
5 to 15 knots by midnight, then veering east late. areas of dense
fog late in the evening. patchy fog after midnight. patchy
freezing drizzle. patchy drizzle after midnight. waves 3 to
5 feet occasionally to 7 feet subsiding to 1 to 3 feet.
.friday...east winds 5 to 15 knots backing northeast. patchy fog
in the morning. areas of drizzle in the morning. a chance of rain
showers. waves subsiding to calm to 2 feet.
.friday night...north winds 5 to 15 knots backing northwest by
midnight, then increasing to 10 to 20 knots late. a slight chance
of snow showers in the evening. rain showers likely. snow showers
likely, possibly mixed with sleet after midnight. waves calm to
2 feet.
.saturday...northwest winds 10 to 20 knots backing southwest in
the afternoon. a slight chance of snow showers, possibly mixed
with rain in the morning. waves calm to 2 feet.
.saturday night...southwest winds 20 to 30 knots increasing to
gales to 35 knots after midnight. waves building to 5 to 8 feet
occasionally to 10 feet.
.sunday...southwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. waves subsiding to 3 to 5 feet
occasionally to 7 feet.
.sunday night...southwest winds 15 to 25 knots veering west after
midnight. waves subsiding to 2 to 4 feet.
.monday...west winds 15 to 25 knots becoming northeast 10 to
20 knots. a chance of. waves subsiding to calm to 2 feet, then
building to 2 to 4 feet.
.tuesday...east winds 15 to 25 knots becoming northeast 20 to
30 knots. snow showers likely, then a chance of snow showers.
waves building to 5 to 8 feet occasionally to 10 feet.
$$
(15/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/5/2026 10:00 PM America/New_York.
Valid through 3/6/2026 4:00 AM America/New_York.
fzus63 kmqt 060300
glfls
expires:202603060900;;700611
open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu mar 5 2026
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
lake superior is currently between a 30.7 inch high over quebec and
a 29.5 inch low over eastern colorado. as the high continues to
shift east, the low will elongate across the mississippi river
valley friday night at 29.6 inches. the low then deepens to 29.4
inches over the ontario/quebec line late saturday morning. as the
low further deepens to 29.2 inches over quebec saturday evening, a
30.1 inch high over the central to southern plains will project a
weak 29.8 inch ridge over the lake. this ridge is kicked east by a
29.1 inch low that transits northern ontario sunday, reaching
northwest quebec overnight into monday as a secondary low pressure
trails behind near the northern shores of lake superior. the low
slowly exits the area monday before being replaced by a 30.3 inch
high over northern ontario tuesday. the high slowly moves into
quebec wednesday.
lsz263-060900-
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 mar 5 2026
.rest of tonight...east winds 5 to 15 knots veering southeast
late. patchy fog. patchy drizzle and freezing drizzle after
midnight. waves 3 to 5 feet occasionally to 7 feet subsiding to
1 to 3 feet.
.friday...southeast winds 5 to 15 knots. patchy fog in the
morning. areas of drizzle and patchy freezing drizzle in the
morning, then a chance of rain showers in the afternoon. waves
subsiding to calm to 2 feet.
.friday night...north winds 5 to 15 knots increasing to 15 to
25 knots. a chance of rain showers in the evening, then rain
showers likely, possibly mixed with snow showers after midnight.
waves building to 1 to 3 feet.
.saturday...northwest winds 15 to 25 knots backing west in the
afternoon. a chance of snow showers, possibly mixed with rain in
the morning. waves subsiding to calm to 2 feet, then building to
1 to 3 feet.
.saturday night...southwest winds 20 to 30 knots increasing to
gales to 35 knots after midnight. waves building to 6 to 9 feet
occasionally to 11 feet.
.sunday...southwest gales to 40 knots. waves subsiding to 3 to
6 feet occasionally to 8 feet.
.sunday night...southwest winds 20 to 30 knots. waves subsiding
to 3 to 6 feet occasionally to 8 feet.
.monday...west winds 20 to 30 knots becoming northeast 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
3 to 5 feet occasionally to 7 feet.
.tuesday...east winds 15 to 25 knots becoming northeast gales to
35 knots. a chance of snow showers. waves building to 5 to 9 feet
occasionally to 11 feet.
$$
(16/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/5/2026 10:00 PM America/New_York.
Valid through 3/6/2026 4:00 AM America/New_York.
fzus63 kmqt 060300
glfls
expires:202603060900;;700612
open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu mar 5 2026
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
lake superior is currently between a 30.7 inch high over quebec and
a 29.5 inch low over eastern colorado. as the high continues to
shift east, the low will elongate across the mississippi river
valley friday night at 29.6 inches. the low then deepens to 29.4
inches over the ontario/quebec line late saturday morning. as the
low further deepens to 29.2 inches over quebec saturday evening, a
30.1 inch high over the central to southern plains will project a
weak 29.8 inch ridge over the lake. this ridge is kicked east by a
29.1 inch low that transits northern ontario sunday, reaching
northwest quebec overnight into monday as a secondary low pressure
trails behind near the northern shores of lake superior. the low
slowly exits the area monday before being replaced by a 30.3 inch
high over northern ontario tuesday. the high slowly moves into
quebec wednesday.
lsz264-060900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est thu mar 5 2026
.rest of tonight...east winds 10 to 20 knots veering southeast by
midnight. patchy fog. waves 3 to 5 feet occasionally to 7 feet
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet.
.friday...southeast winds 10 to 20 knots. patchy fog in the
morning. areas of drizzle and patchy freezing drizzle in the
morning, then a chance of rain showers in the afternoon. waves
2 to 4 feet.
.friday night...southeast winds 5 to 15 knots veering northwest
by midnight, then becoming north 15 to 25 knots late. a chance of
rain showers in the evening, then rain showers likely, possibly
mixed with snow showers after midnight. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet.
.saturday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. a chance of snow showers, possibly
mixed with rain in the morning. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet.
.saturday night...southwest winds 20 to 30 knots increasing to
gales to 40 knots after midnight. waves subsiding to 1 to 3 feet,
then building to 6 to 9 feet occasionally to 11 feet.
.sunday...southwest gales to 40 knots. waves subsiding to 4 to
7 feet occasionally to 9 feet.
.sunday night...southwest winds 20 to 30 knots. waves subsiding
to 3 to 6 feet occasionally to 8 feet, then building to 4 to
7 feet occasionally to 9 feet.
.monday...west winds 20 to 30 knots becoming north 15 to
25 knots. waves subsiding to 1 to 3 feet, then building to 3 to
6 feet occasionally to 8 feet.
.tuesday...east winds 15 to 25 knots becoming northeast gales to
35 knots. a chance of snow showers. waves building to 8 to
11 feet occasionally to 14 feet.
$$
(17/17)
Latest Great Lakes Marine Forecast by KMQT
Issued 3/5/2026 10:00 PM America/New_York.
Valid through 3/6/2026 4:00 AM America/New_York.
fzus63 kmqt 060300
glfls
expires:202603060900;;700613
open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu mar 5 2026
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
lake superior is currently between a 30.7 inch high over quebec and
a 29.5 inch low over eastern colorado. as the high continues to
shift east, the low will elongate across the mississippi river
valley friday night at 29.6 inches. the low then deepens to 29.4
inches over the ontario/quebec line late saturday morning. as the
low further deepens to 29.2 inches over quebec saturday evening, a
30.1 inch high over the central to southern plains will project a
weak 29.8 inch ridge over the lake. this ridge is kicked east by a
29.1 inch low that transits northern ontario sunday, reaching
northwest quebec overnight into monday as a secondary low pressure
trails behind near the northern shores of lake superior. the low
slowly exits the area monday before being replaced by a 30.3 inch
high over northern ontario tuesday. the high slowly moves into
quebec wednesday.
lsz265-060900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est thu mar 5 2026
.rest of tonight...southeast winds 15 to 25 knots diminishing to
10 to 20 knots late. patchy fog. waves 2 to 4 feet subsiding to
calm to 2 feet.
.friday...southeast winds 10 to 20 knots. patchy fog in the
morning. areas of drizzle in the morning, then a chance of rain
showers in the afternoon. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.friday night...southeast winds 10 to 20 knots veering southwest
by midnight, then becoming northwest 15 to 25 knots late. a
chance of rain showers in the evening, then rain showers after
midnight. waves calm to 2 feet.
.saturday...northwest winds 20 to 30 knots. a chance of snow
showers, possibly mixed with rain in the morning. waves building
to 3 to 6 feet occasionally to 8 feet.
.saturday night...southwest winds 15 to 25 knots increasing to
gales to 35 knots after midnight. waves subsiding to 1 to 3 feet,
then building to 3 to 5 feet occasionally to 7 feet.
.sunday...southwest gales to 40 knots becoming west gales to
35 knots in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet.
.sunday night...southwest winds 20 to 30 knots increasing to
gales to 35 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet.
.monday...west winds 20 to 30 knots becoming north 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
3 to 5 feet occasionally to 7 feet.
.tuesday...east winds 20 to 30 knots becoming northeast gales to
35 knots. a chance of snow showers. a chance of freezing rain.
waves building to 8 to 11 feet occasionally to 14 feet.
$$
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