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(1/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 8/6/2026 9:48 PM America/New_York.
Valid through 8/7/2026 6:00 AM America/New_York.
fzus63 kdtx 070148
glflh
expires:202608071000;;744236
open lake forecast for lake huron
national weather service detroit/pontiac mi
948 pm edt thu aug 6 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...periods of unsettled weather will continue over the
next few days. scattered showers and thunderstorms will remain
possible, as a frontal boundary hangs around southern michigan.
brief period of high pressure, 30.00 inches, fills in ahead of
the next cold front which tracks through this weekend.
lhz361-071000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
948 pm edt thu aug 6 2026
.rest of tonight...southeast winds 5 to 10 knots. waves 2 feet or
less.
.friday...south winds 5 to 10 knots backing to the east late in
the afternoon. waves 2 feet or less.
.friday night...southeast winds 5 to 10 knots veering to the
south after midnight. a chance of showers. waves 2 feet or less.
.saturday...southwest winds 5 to 10 knots becoming west 10 to
15 knots in the late morning and afternoon. a chance of showers
in the morning. waves 1 to 3 feet.
.saturday night...west winds 10 to 15 knots early in the evening
becoming light and variable...then becoming southwest 5 to
10 knots after midnight. waves 1 to 3 feet.
.sunday...southwest winds 5 to 10 knots veering to the west late
in the afternoon...then becoming light and variable late in the
evening. a chance of showers. a chance of thunderstorms late in
the morning. waves 2 feet or less.
.monday...light and variable winds becoming southwest 5 to
10 knots . a chance of showers. waves 2 feet or less.
.tuesday...northwest winds 5 to 10 knots backing to the west .
waves 2 feet or less.
$$
(2/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 8/6/2026 9:48 PM America/New_York.
Valid through 8/7/2026 6:00 AM America/New_York.
fzus63 kdtx 070148
glflh
expires:202608071000;;744237
open lake forecast for lake huron
national weather service detroit/pontiac mi
948 pm edt thu aug 6 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...periods of unsettled weather will continue over the
next few days. scattered showers and thunderstorms will remain
possible, as a frontal boundary hangs around southern michigan.
brief period of high pressure, 30.00 inches, fills in ahead of
the next cold front which tracks through this weekend.
lhz362-363-071000-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
948 pm edt thu aug 6 2026
.rest of tonight...light and variable winds becoming southeast
5 to 10 knots after midnight. waves 2 feet or less.
.friday...southeast winds 5 to 10 knots. waves 2 feet or less.
.friday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots by midnight...then decreasing to 5 to 10 knots
after midnight. waves 1 to 3 feet.
.saturday...southwest winds 5 to 10 knots. a chance of showers in
the morning. waves 1 to 3 feet.
.saturday night...north winds 5 to 10 knots backing to the west
after midnight. waves 2 to 4 feet subsiding to 1 to 3 feet in the
late evening and overnight.
.sunday...southwest winds 5 to 10 knots in the morning becoming
south 10 to 15 knots...then decreasing to 5 to 10 knots late in
the afternoon becoming light and variable. a chance of showers
late in the morning. waves 1 to 3 feet.
.monday...light and variable winds becoming southeast 5 to
10 knots . a chance of showers and thunderstorms. waves 2 feet or
less.
.tuesday...northwest winds 5 to 10 knots becoming northwest by
midnight. waves 2 feet or less.
$$
(3/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 8/6/2026 9:48 PM America/New_York.
Valid through 8/7/2026 6:00 AM America/New_York.
fzus63 kdtx 070148
glflh
expires:202608071000;;744238
open lake forecast for lake huron
national weather service detroit/pontiac mi
948 pm edt thu aug 6 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...periods of unsettled weather will continue over the
next few days. scattered showers and thunderstorms will remain
possible, as a frontal boundary hangs around southern michigan.
brief period of high pressure, 30.00 inches, fills in ahead of
the next cold front which tracks through this weekend.
lhz462>464-071000-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
948 pm edt thu aug 6 2026
.rest of tonight...light and variable winds. waves 2 feet or
less.
.friday...southeast winds 5 to 10 knots. waves 2 feet or less.
.friday night...southeast winds 5 to 10 knots veering to the
south after midnight. a chance of showers. waves 2 feet or less.
.saturday...southwest winds 5 to 10 knots. a chance of showers.
waves 2 feet or less.
.saturday night...west winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less.
.sunday...southwest winds 5 to 10 knots increasing to 10 to
15 knots late in the morning...then becoming south 5 to 10 knots
late in the afternoon. a chance of showers late in the afternoon.
waves 1 to 3 feet.
.monday...southwest winds 5 to 10 knots. a chance of showers
early in the morning. a chance of thunderstorms. rain showers
likely . waves 2 feet or less.
.tuesday...west winds 5 to 10 knots veering to the northwest
early in the evening...then becoming light and variable by
midnight. a chance of showers early in the morning. waves 2 feet
or less.
$$
(4/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 8/6/2026 9:12 PM US/Central.
Valid through 8/7/2026 4:15 AM US/Central.
fzus63 kmkx 070212
glflm
expires:202608070915;;745323
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
912 pm cdt thu aug 6 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...
light southerly winds tonight will increase by friday afternoon
as a low pressure trough of 29.8 inches reaches lake superior.
scattered showers and storms are possible friday night as an
associated cold front crosses lake michigan. west to northwest
winds behind the front early saturday will quickly return to
southerly by saturday evening ahead of the next approaching low
pressure system. an unsettled weather pattern will set up over the
upper great lakes next week where weak waves of low pressure will
cross the region and produce rounds of thunderstorms at times.
lmz261-362-364-366-563-565-567-868-070915-
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-
912 pm cdt thu aug 6 2026
sheboygan wi to pentwater mi north...
.rest of tonight...southeast winds 5 to 10 kt becoming south.
waves 1 ft or less.
.friday...south winds 10 to 15 kt increasing to 15 to 25 kt.
waves 1 to 3 ft building to 2 to 4 ft.
.friday night...south winds 15 to 25 kt veering to west 10 to
20 kt. chance of showers. waves 3 to 5 ft.
.saturday...northwest winds 10 to 20 kt becoming west. waves 2 to
4 ft.
.saturday night...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. waves 1 to 2 ft.
.sunday...southwest winds 10 to 20 kt. waves 2 to 4 ft.
.sunday night...south winds 10 to 20 kt diminishing to 10 to
15 kt. chance of showers. waves 2 to 4 ft.
.monday...southeast winds 10 to 20 kt becoming south 15 to 25 kt.
chance of showers and thunderstorms. waves 1 to 3 ft.
.tuesday...north winds 10 to 15 kt becoming west 10 to 20 kt.
waves 1 to 2 ft.
$$
(5/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 8/6/2026 9:12 PM US/Central.
Valid through 8/7/2026 4:15 AM US/Central.
fzus63 kmkx 070212
glflm
expires:202608070915;;745324
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
912 pm cdt thu aug 6 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...
light southerly winds tonight will increase by friday afternoon
as a low pressure trough of 29.8 inches reaches lake superior.
scattered showers and storms are possible friday night as an
associated cold front crosses lake michigan. west to northwest
winds behind the front early saturday will quickly return to
southerly by saturday evening ahead of the next approaching low
pressure system. an unsettled weather pattern will set up over the
upper great lakes next week where weak waves of low pressure will
cross the region and produce rounds of thunderstorms at times.
lmz080-669-671-673-675-777-779-870-872-874-876-878-070915-
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-
912 pm cdt thu aug 6 2026
sheboygan wi to pentwater mi south...
.rest of tonight...southeast winds 5 to 10 kt becoming south.
waves 1 ft or less.
.friday...southwest winds 5 to 10 kt becoming south 15 to 25 kt.
waves 1 to 2 ft building to 2 to 4 ft.
.friday night...south winds 10 to 20 kt becoming west. waves 2 to
4 ft.
.saturday...northwest winds 10 to 20 kt becoming north. waves
2 to 4 ft.
.saturday night...south winds 10 to 15 kt. waves 1 to 3 ft.
.sunday...south winds 10 to 20 kt. chance of showers in the
morning, then chance of showers and thunderstorms in the
afternoon. waves 2 to 4 ft.
.sunday night...south winds 10 to 20 kt becoming southwest 10 to
15 kt. chance of showers and thunderstorms. waves 2 to 4 ft.
.monday...southwest winds 10 to 20 kt becoming south 15 to 25 kt.
showers likely with a chance of thunderstorms. waves 1 to 3 ft.
.tuesday...northwest winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 3 ft.
$$
(6/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 8/6/2026 10:01 PM America/New_York.
Valid through 8/7/2026 4:00 AM America/New_York.
fzus63 kmqt 070201
glfls
expires:202608070800;;744493
open lake forecast for lake superior
national weather service marquette mi
1001 pm edt thu aug 6 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 situated between a 29.5 inch low along
the shore of hudson bay at the manitoba/ontario line and a 30.2 inch
bermuda high. friday, a cold front brings 29.8 inch troughing across
the lake before 29.9 inch ridging returns late friday night into
saturday. while some weak 29.8 inch troughing could be seen over
lake superior saturday night, weak 29.9 inch ridging settles once
again over the lake sunday and monday, with a weak 29.8 inch trough
potentially passing through sunday evening. the high pressure
ridging could increase to 30.0 inches by tuesday.
lsz162-070800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt thu aug 6 2026 /901 pm cdt thu aug 6 2026/
.rest of tonight...south winds 10 to 20 knots veering southwest
late. waves 1 to 3 feet.
.friday...southwest winds 10 to 20 knots. a chance of showers and
thunderstorms. waves subsiding to calm to 2 feet.
.friday night...west winds 5 to 15 knots becoming northwest 10 to
20 knots after midnight, then backing west late. waves calm to
2 feet.
.saturday...west winds 10 to 20 knots backing southwest by mid
afternoon. waves building to 1 to 3 feet.
.saturday night...west winds 5 to 15 knots. a slight chance of
showers. waves subsiding to calm to 2 feet.
.sunday...west winds 5 to 15 knots backing south by mid
afternoon. waves calm to 2 feet.
.sunday night...northeast winds 5 to 15 knots backing north after
midnight. waves calm to 2 feet.
.monday...north winds 5 to 15 knots backing northwest. waves calm
to 2 feet.
.tuesday...southwest winds 5 to 15 knots veering west. waves calm
to 2 feet.
$$
(7/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 8/6/2026 10:01 PM America/New_York.
Valid through 8/7/2026 4:00 AM America/New_York.
fzus63 kmqt 070201
glfls
expires:202608070800;;744494
open lake forecast for lake superior
national weather service marquette mi
1001 pm edt thu aug 6 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 situated between a 29.5 inch low along
the shore of hudson bay at the manitoba/ontario line and a 30.2 inch
bermuda high. friday, a cold front brings 29.8 inch troughing across
the lake before 29.9 inch ridging returns late friday night into
saturday. while some weak 29.8 inch troughing could be seen over
lake superior saturday night, weak 29.9 inch ridging settles once
again over the lake sunday and monday, with a weak 29.8 inch trough
potentially passing through sunday evening. the high pressure
ridging could increase to 30.0 inches by tuesday.
lsz263-070800-
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-
1001 pm edt thu aug 6 2026
.rest of tonight...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then becoming southwest 10 to 20 knots
late. waves 1 to 3 feet building to 2 to 4 feet.
.friday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. a chance of showers and thunderstorms.
waves subsiding to calm to 2 feet.
.friday night...west winds 5 to 15 knots veering northwest after
midnight, then backing west late. waves calm to 2 feet.
.saturday...west winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet.
.saturday night...southwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight. a slight chance of showers. waves
subsiding to calm to 2 feet.
.sunday...west winds 5 to 15 knots backing south by mid
afternoon. waves calm to 2 feet.
.sunday night...south winds 5 to 15 knots becoming west less than
10 knots after midnight. waves calm to 2 feet.
.monday...west winds 5 to 15 knots. waves calm to 2 feet.
.tuesday...west winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet.
$$
(8/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 8/6/2026 10:01 PM America/New_York.
Valid through 8/7/2026 4:00 AM America/New_York.
fzus63 kmqt 070201
glfls
expires:202608070800;;744495
open lake forecast for lake superior
national weather service marquette mi
1001 pm edt thu aug 6 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 situated between a 29.5 inch low along
the shore of hudson bay at the manitoba/ontario line and a 30.2 inch
bermuda high. friday, a cold front brings 29.8 inch troughing across
the lake before 29.9 inch ridging returns late friday night into
saturday. while some weak 29.8 inch troughing could be seen over
lake superior saturday night, weak 29.9 inch ridging settles once
again over the lake sunday and monday, with a weak 29.8 inch trough
potentially passing through sunday evening. the high pressure
ridging could increase to 30.0 inches by tuesday.
lsz264-070800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt thu aug 6 2026
.rest of tonight...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves 1 to 3 feet building to 2 to
4 feet.
.friday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. a chance of showers and thunderstorms.
waves subsiding to calm to 2 feet.
.friday night...west winds 5 to 15 knots veering northwest after
midnight. a slight chance of showers and thunderstorms through
midnight. waves calm to 2 feet.
.saturday...west winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet.
.saturday night...southwest winds 5 to 15 knots veering west
after midnight. waves subsiding to calm to 2 feet.
.sunday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet.
.sunday night...southwest winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet.
.monday...southwest winds 5 to 15 knots veering west. waves calm
to 2 feet.
.tuesday...west winds 5 to 15 knots. waves calm to 2 feet.
$$
(9/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 8/6/2026 10:01 PM America/New_York.
Valid through 8/7/2026 4:00 AM America/New_York.
fzus63 kmqt 070201
glfls
expires:202608070800;;744496
open lake forecast for lake superior
national weather service marquette mi
1001 pm edt thu aug 6 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 situated between a 29.5 inch low along
the shore of hudson bay at the manitoba/ontario line and a 30.2 inch
bermuda high. friday, a cold front brings 29.8 inch troughing across
the lake before 29.9 inch ridging returns late friday night into
saturday. while some weak 29.8 inch troughing could be seen over
lake superior saturday night, weak 29.9 inch ridging settles once
again over the lake sunday and monday, with a weak 29.8 inch trough
potentially passing through sunday evening. the high pressure
ridging could increase to 30.0 inches by tuesday.
lsz265-070800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt thu aug 6 2026
.rest of tonight...south winds 15 to 25 knots diminishing to
10 to 20 knots late. waves 2 to 4 feet subsiding to calm to
2 feet.
.friday...south winds 10 to 20 knots backing southeast in the
afternoon, then backing north late. showers likely and a chance
of thunderstorms by mid afternoon. waves calm to 2 feet.
.friday night...southwest winds 10 to 20 knots veering west after
midnight. a chance of thunderstorms and a slight chance of
showers through midnight. waves calm to 2 feet.
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.saturday night...southwest winds 10 to 20 knots. a slight chance
of showers after midnight. waves calm to 2 feet.
.sunday...west winds 10 to 20 knots becoming northeast 5 to
15 knots by mid afternoon. waves calm to 2 feet.
.sunday night...south winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet.
.monday...northeast winds 5 to 15 knots backing west. waves calm
to 2 feet.
.tuesday...west winds 5 to 15 knots backing southwest. waves calm
to 2 feet.
$$
(10/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 8/6/2026 10:01 PM America/New_York.
Valid through 8/7/2026 4:00 AM America/New_York.
fzus63 kmqt 070201
glfls
expires:202608070800;;744497
open lake forecast for lake superior
national weather service marquette mi
1001 pm edt thu aug 6 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 situated between a 29.5 inch low along
the shore of hudson bay at the manitoba/ontario line and a 30.2 inch
bermuda high. friday, a cold front brings 29.8 inch troughing across
the lake before 29.9 inch ridging returns late friday night into
saturday. while some weak 29.8 inch troughing could be seen over
lake superior saturday night, weak 29.9 inch ridging settles once
again over the lake sunday and monday, with a weak 29.8 inch trough
potentially passing through sunday evening. the high pressure
ridging could increase to 30.0 inches by tuesday.
lsz266-070800-
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-
1001 pm edt thu aug 6 2026
.rest of tonight...south winds 15 to 25 knots. waves 2 to 4 feet
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet.
.friday...south winds 10 to 20 knots. a chance of showers and
thunderstorms by mid afternoon. waves subsiding to calm to
2 feet.
.friday night...southwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight, then becoming northwest 10 to 20 knots
late. showers likely and a chance of thunderstorms through
midnight, then a slight chance of showers after midnight. waves
calm to 2 feet.
.saturday...northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.saturday night...southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. a slight chance of showers after
midnight. waves subsiding to calm to 2 feet.
.sunday...west winds 10 to 20 knots diminishing to 5 to 15 knots
by mid afternoon. waves calm to 2 feet.
.sunday night...south winds 5 to 15 knots. waves calm to 2 feet.
.monday...southwest winds 5 to 15 knots veering northwest. waves
calm to 2 feet.
.tuesday...west winds 5 to 15 knots. waves calm to 2 feet.
$$
(11/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 8/6/2026 10:01 PM America/New_York.
Valid through 8/7/2026 4:00 AM America/New_York.
fzus63 kmqt 070201
glfls
expires:202608070800;;744498
open lake forecast for lake superior
national weather service marquette mi
1001 pm edt thu aug 6 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 situated between a 29.5 inch low along
the shore of hudson bay at the manitoba/ontario line and a 30.2 inch
bermuda high. friday, a cold front brings 29.8 inch troughing across
the lake before 29.9 inch ridging returns late friday night into
saturday. while some weak 29.8 inch troughing could be seen over
lake superior saturday night, weak 29.9 inch ridging settles once
again over the lake sunday and monday, with a weak 29.8 inch trough
potentially passing through sunday evening. the high pressure
ridging could increase to 30.0 inches by tuesday.
lsz267-070800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt thu aug 6 2026
.rest of tonight...south winds 10 to 20 knots. waves calm to
2 feet building to 1 to 3 feet.
.friday...south winds 10 to 20 knots. waves subsiding to calm to
2 feet.
.friday night...south winds 10 to 20 knots veering southwest
after midnight, then veering northwest late. showers through
midnight. a chance of thunderstorms. a chance of showers after
midnight. waves calm to 2 feet.
.saturday...west winds 10 to 20 knots. waves calm to 2 feet.
.saturday night...southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves calm to 2 feet.
.sunday...southwest winds 10 to 20 knots becoming northwest 5 to
15 knots by mid afternoon. waves calm to 2 feet.
.sunday night...west winds 5 to 15 knots backing south after
midnight. waves calm to 2 feet.
.monday...south winds 5 to 15 knots veering northwest. waves calm
to 2 feet.
.tuesday...west winds 5 to 15 knots. waves calm to 2 feet.
$$
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