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(1/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/22/2026 3:44 PM America/New_York.
Valid through 6/22/2026 11:45 PM America/New_York.
fzus63 kdtx 221944
glflh
expires:202606230345;;731966
open lake forecast for lake huron
national weather service detroit/pontiac mi
344 pm edt mon jun 22 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...high pressure, 30.20 inches, will build into the great
lakes region tonight, producing light winds for the tuesday and
wednesday. low pressure, 29.90 inches will move toward lower
michigan thursday bringing a slight increase in winds speeds as
the become south or southwest.
lhz361-230345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
344 pm edt mon jun 22 2026
.tonight...northwest winds 10 to 15 knots decreasing to 5 to
10 knots early in the morning. waves 1 to 3 feet.
.tuesday...northwest winds 5 to 10 knots backing to the west in
the afternoon. waves 2 feet or less.
.tuesday night...west winds 5 to 10 knots. waves 2 feet or less.
.wednesday...light and variable winds becoming southeast 5 to
10 knots early in the afternoon. a chance of showers in the
afternoon. waves 2 feet or less.
.wednesday night...southeast winds 5 to 10 knots. showers likely
in the evening...then showers after midnight. waves 2 feet or
less.
.thursday...east winds 5 to 10 knots becoming light and
variable...then becoming northwest 5 to 10 knots late in the
evening. showers in the morning. a chance of showers late in the
morning. waves 2 feet or less.
.friday...northwest winds 5 to 10 knots backing to the west .
waves 2 feet or less.
.saturday...light and variable winds. waves 2 feet or less.
$$
(2/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/22/2026 3:44 PM America/New_York.
Valid through 6/22/2026 11:45 PM America/New_York.
fzus63 kdtx 221944
glflh
expires:202606230345;;731967
open lake forecast for lake huron
national weather service detroit/pontiac mi
344 pm edt mon jun 22 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...high pressure, 30.20 inches, will build into the great
lakes region tonight, producing light winds for the tuesday and
wednesday. low pressure, 29.90 inches will move toward lower
michigan thursday bringing a slight increase in winds speeds as
the become south or southwest.
lhz362-363-230345-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
344 pm edt mon jun 22 2026
.tonight...north winds 10 to 15 knots backing to the northwest in
the late evening and overnight. waves 1 to 3 feet building to
2 to 4 feet in the late evening and overnight.
.tuesday...north winds 5 to 10 knots. waves 1 to 3 feet.
.tuesday night...light and variable winds. waves 2 feet or less.
.wednesday...light and variable winds becoming southeast 5 to
10 knots early in the afternoon. a chance of showers in the
afternoon. waves 2 feet or less.
.wednesday night...southeast winds 5 to 10 knots. showers likely
in the evening...then showers after midnight. waves 2 feet or
less.
.thursday...southeast winds 5 to 10 knots backing to the
northwest late in the evening. a chance of showers. a chance of
thunderstorms late in the morning. waves 2 feet or less.
.friday...northwest winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less.
.saturday...light and variable winds. waves 2 feet or less.
$$
(3/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/22/2026 3:44 PM America/New_York.
Valid through 6/22/2026 11:45 PM America/New_York.
fzus63 kdtx 221944
glflh
expires:202606230345;;731968
open lake forecast for lake huron
national weather service detroit/pontiac mi
344 pm edt mon jun 22 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...high pressure, 30.20 inches, will build into the great
lakes region tonight, producing light winds for the tuesday and
wednesday. low pressure, 29.90 inches will move toward lower
michigan thursday bringing a slight increase in winds speeds as
the become south or southwest.
lhz462>464-230345-
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-
344 pm edt mon jun 22 2026
.tonight...north winds 10 to 15 knots decreasing to 5 to 10 knots
by midnight...then increasing to 10 to 15 knots early in the
morning. waves 1 to 3 feet.
.tuesday...north winds 5 to 10 knots. waves 1 to 3 feet.
.tuesday night...light and variable winds. waves 2 feet or less.
.wednesday...light and variable winds becoming southeast 5 to
10 knots early in the afternoon. waves 2 feet or less.
.wednesday night...southeast winds 5 to 10 knots veering to the
south after midnight. a chance of showers. waves 2 feet or less.
.thursday...south winds 5 to 10 knots veering to the west late in
the evening. showers likely. a chance of thunderstorms late in
the morning. waves 2 feet or less.
.friday...northwest winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less.
.saturday...light and variable winds becoming north 5 to 10 knots
until early evening...then becoming light and variable by
midnight. waves 2 feet or less.
$$
(4/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 6/22/2026 2:23 PM US/Central.
Valid through 6/22/2026 11:00 PM US/Central.
fzus63 kmkx 221923
glflm
expires:202606230400;;731488
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
223 pm cdt mon jun 22 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...
modest northerly winds over the southern portion of the lake will
gradually become light tonight as high pressure approaches. a
surface ridge of 30.2 inches will then slowly move across lake
michigan for tuesday afternoon and evening with light and variable
winds expected. by wednesday, the high pressure will exit to the
southeast and low pressure around 29.9 inches will track from
northwest wi to across northern or central lake michigan
wednesday night. as the low approaches, modest southerly winds
will develop on wednesday, then shift west to northwest late
wednesday night and thursday after the low passes. the winds will
remain light the remainder of the week.
lmz080-669-671-673-675-777-779-870-872-874-876-878-230400-
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-
223 pm cdt mon jun 22 2026
sheboygan wi to pentwater mi south...
.tonight...north winds 15 to 25 kt diminishing to 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.tuesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft.
.tuesday night...north winds 10 to 15 kt becoming northwest late
in the evening, then becoming southwest after midnight increasing
to 5 to 10 kt late. waves 1 to 3 ft subsiding to 1 to 2 ft.
.wednesday...south winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers. waves 1 to 3 ft building to 3 to 5 ft.
.wednesday night...south winds 10 to 20 kt becoming southwest
10 to 15 kt. showers likely. waves 3 to 5 ft subsiding to 1 to
3 ft.
.thursday...west winds 10 to 15 kt becoming northwest 10 to
20 kt. waves 1 to 2 ft.
.thursday night...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft.
.friday...northeast winds 5 to 10 kt becoming north 10 to 15 kt.
waves 1 to 2 ft.
.saturday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 ft or less.
$$
(5/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 6/22/2026 2:23 PM US/Central.
Valid through 6/22/2026 11:00 PM US/Central.
fzus63 kmkx 221923
glflm
expires:202606230400;;731487
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
223 pm cdt mon jun 22 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...
modest northerly winds over the southern portion of the lake will
gradually become light tonight as high pressure approaches. a
surface ridge of 30.2 inches will then slowly move across lake
michigan for tuesday afternoon and evening with light and variable
winds expected. by wednesday, the high pressure will exit to the
southeast and low pressure around 29.9 inches will track from
northwest wi to across northern or central lake michigan
wednesday night. as the low approaches, modest southerly winds
will develop on wednesday, then shift west to northwest late
wednesday night and thursday after the low passes. the winds will
remain light the remainder of the week.
lmz261-362-364-366-563-565-567-868-230400-
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-
223 pm cdt mon jun 22 2026
sheboygan wi to pentwater mi north...
.tonight...north winds 10 to 15 kt. waves 2 to 4 ft subsiding to
1 to 2 ft.
.tuesday...north winds 10 to 15 kt becoming northwest. waves 1 to
2 ft.
.tuesday night...west winds 5 to 10 kt backing to southeast.
waves 1 to 2 ft.
.wednesday...south winds 10 to 20 kt increasing to 15 to 25 kt.
showers likely. waves 1 to 3 ft building to 3 to 5 ft.
.wednesday night...south winds 10 to 20 kt diminishing to 10 to
15 kt. chance of showers. waves 3 to 5 ft subsiding to 2 to 4 ft.
.thursday...northwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft.
.thursday night...northwest winds 10 to 15 kt becoming north.
waves 1 to 2 ft.
.friday...north winds 5 to 10 kt becoming northwest 10 to 20 kt.
waves 1 to 2 ft.
.saturday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 ft or less.
$$
(6/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/22/2026 4:01 PM America/New_York.
Valid through 6/23/2026 4:00 AM America/New_York.
fzus63 kmqt 222001
glfls
expires:202606230800;;732509
open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon jun 22 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...
this afternoon, lake superior is between a 30.2 inch sprawling high
over northern manitoba and a 29.8 inch low over indiana. throughout
today, the low will weaken to 29.9 inches and push to the east coast
while the high shifts into hudson bay. the high expands over the
upper great lakes tuesday. late tuesday into wednesday, a weak 30.0
inch low will pass just south of lake superior from the dakotas. the
low will slowly push into the lower great lakes thursday while
ridging fills in behind associated with the high over hudson bay,
now at 30.1 inches. weak high pressure remains over lake superior
through saturday while low pressure deepens and approaches from over
the central plains.
lsz266-230800-
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 edt mon jun 22 2026
.late this afternoon...northwest winds 10 to 20 knots. waves calm
to 2 feet.
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. waves calm to 2 feet.
.tuesday...northwest winds 5 to 15 knots backing west late. waves
calm to 2 feet.
.tuesday night...southeast winds 5 to 15 knots. a chance of rain
showers after midnight. waves calm to 2 feet.
.wednesday...southeast winds 5 to 15 knots backing east by mid
afternoon. a chance of rain showers. a slight chance of
thunderstorms by mid afternoon. waves calm to 2 feet.
.wednesday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet.
.thursday...north winds 5 to 15 knots backing northwest by mid
afternoon. waves calm to 2 feet.
.thursday night...northwest winds 5 to 15 knots. waves calm to
2 feet.
.friday...northwest winds 5 to 15 knots. waves calm to 2 feet.
.saturday...east winds 5 to 15 knots. waves calm to 2 feet.
$$
(7/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/22/2026 4:01 PM America/New_York.
Valid through 6/23/2026 4:00 AM America/New_York.
fzus63 kmqt 222001
glfls
expires:202606230800;;732510
open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon jun 22 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...
this afternoon, lake superior is between a 30.2 inch sprawling high
over northern manitoba and a 29.8 inch low over indiana. throughout
today, the low will weaken to 29.9 inches and push to the east coast
while the high shifts into hudson bay. the high expands over the
upper great lakes tuesday. late tuesday into wednesday, a weak 30.0
inch low will pass just south of lake superior from the dakotas. the
low will slowly push into the lower great lakes thursday while
ridging fills in behind associated with the high over hudson bay,
now at 30.1 inches. weak high pressure remains over lake superior
through saturday while low pressure deepens and approaches from over
the central plains.
lsz267-230800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt mon jun 22 2026
.late this afternoon...northwest winds 10 to 20 knots. waves calm
to 2 feet.
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet.
.tuesday...northwest winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet.
.tuesday night...west winds 5 to 15 knots backing southwest after
midnight, then backing southeast late. a slight chance of rain
showers after midnight. waves calm to 2 feet.
.wednesday...east winds 5 to 15 knots. a chance of rain showers.
a slight chance of thunderstorms by mid afternoon. waves calm to
2 feet.
.wednesday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a chance of rain showers. waves calm to
2 feet.
.thursday...east winds 5 to 15 knots becoming northwest 10 to
20 knots by mid afternoon. waves calm to 2 feet.
.thursday night...northwest winds 5 to 15 knots. waves calm to
2 feet.
.friday...northwest winds 5 to 15 knots. waves calm to 2 feet.
.saturday...north winds 5 to 15 knots veering east. waves calm to
2 feet.
$$
(8/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/22/2026 4:01 PM America/New_York.
Valid through 6/23/2026 4:00 AM America/New_York.
fzus63 kmqt 222001
glfls
expires:202606230800;;732505
open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon jun 22 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...
this afternoon, lake superior is between a 30.2 inch sprawling high
over northern manitoba and a 29.8 inch low over indiana. throughout
today, the low will weaken to 29.9 inches and push to the east coast
while the high shifts into hudson bay. the high expands over the
upper great lakes tuesday. late tuesday into wednesday, a weak 30.0
inch low will pass just south of lake superior from the dakotas. the
low will slowly push into the lower great lakes thursday while
ridging fills in behind associated with the high over hudson bay,
now at 30.1 inches. weak high pressure remains over lake superior
through saturday while low pressure deepens and approaches from over
the central plains.
lsz162-230800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt mon jun 22 2026 /300 pm cdt mon jun 22 2026/
.late this afternoon...west winds 5 to 15 knots. waves calm to
2 feet.
.tonight...north winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet.
.tuesday...north winds less than 10 knots becoming east 5 to
15 knots in the afternoon. waves calm to 2 feet.
.tuesday night...east winds 5 to 15 knots becoming northeast
10 to 20 knots late. a chance of rain showers through midnight. a
slight chance of thunderstorms. rain showers likely after
midnight. waves calm to 2 feet.
.wednesday...northeast winds 10 to 20 knots. showers likely
through early afternoon, then a slight chance of showers and
thunderstorms by mid afternoon. waves building to 2 to 4 feet,
then subsiding to 1 to 3 feet.
.wednesday night...northeast winds 10 to 20 knots becoming north
5 to 15 knots after midnight. waves subsiding to calm to 2 feet.
.thursday...north winds 5 to 15 knots. waves calm to 2 feet.
.thursday night...north winds less than 10 knots. waves calm to
2 feet.
.friday...north winds 5 to 15 knots veering northeast. waves calm
to 2 feet.
.saturday...northeast winds 10 to 20 knots veering east. a chance
of rain showers. waves building to 1 to 3 feet.
$$
(9/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/22/2026 4:01 PM America/New_York.
Valid through 6/23/2026 4:00 AM America/New_York.
fzus63 kmqt 222001
glfls
expires:202606230800;;732506
open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon jun 22 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...
this afternoon, lake superior is between a 30.2 inch sprawling high
over northern manitoba and a 29.8 inch low over indiana. throughout
today, the low will weaken to 29.9 inches and push to the east coast
while the high shifts into hudson bay. the high expands over the
upper great lakes tuesday. late tuesday into wednesday, a weak 30.0
inch low will pass just south of lake superior from the dakotas. the
low will slowly push into the lower great lakes thursday while
ridging fills in behind associated with the high over hudson bay,
now at 30.1 inches. weak high pressure remains over lake superior
through saturday while low pressure deepens and approaches from over
the central plains.
lsz263-230800-
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 edt mon jun 22 2026
.late this afternoon...west winds 5 to 15 knots. waves calm to
2 feet.
.tonight...west winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet.
.tuesday...southwest winds less than 10 knots increasing to 5 to
15 knots in the afternoon, then backing east late. waves calm to
2 feet.
.tuesday night...east winds 5 to 15 knots. a chance of rain
showers through midnight, then rain showers likely and a slight
chance of thunderstorms after midnight. waves calm to 2 feet.
.wednesday...east winds 10 to 20 knots backing northeast by mid
afternoon. showers likely through early afternoon. a slight
chance of thunderstorms. a slight chance of showers by mid
afternoon. waves building to 1 to 3 feet.
.wednesday night...northeast winds 10 to 20 knots becoming north
5 to 15 knots after midnight. waves subsiding to calm to 2 feet.
.thursday...north winds less than 10 knots backing northwest by
mid afternoon. waves calm to 2 feet.
.thursday night...west winds less than 10 knots. waves calm to
2 feet.
.friday...northeast winds 5 to 15 knots veering east. waves calm
to 2 feet.
.saturday...east winds 5 to 15 knots. waves calm to 2 feet.
$$
(10/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/22/2026 4:01 PM America/New_York.
Valid through 6/23/2026 4:00 AM America/New_York.
fzus63 kmqt 222001
glfls
expires:202606230800;;732507
open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon jun 22 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...
this afternoon, lake superior is between a 30.2 inch sprawling high
over northern manitoba and a 29.8 inch low over indiana. throughout
today, the low will weaken to 29.9 inches and push to the east coast
while the high shifts into hudson bay. the high expands over the
upper great lakes tuesday. late tuesday into wednesday, a weak 30.0
inch low will pass just south of lake superior from the dakotas. the
low will slowly push into the lower great lakes thursday while
ridging fills in behind associated with the high over hudson bay,
now at 30.1 inches. weak high pressure remains over lake superior
through saturday while low pressure deepens and approaches from over
the central plains.
lsz264-230800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm edt mon jun 22 2026
.late this afternoon...west winds 5 to 15 knots. waves calm to
2 feet.
.tonight...west winds 5 to 15 knots veering northwest after
midnight, then backing west late. waves calm to 2 feet.
.tuesday...west winds less than 10 knots backing southwest late.
waves calm to 2 feet.
.tuesday night...southeast winds 5 to 15 knots. a chance of rain
showers after midnight. waves calm to 2 feet.
.wednesday...east winds 5 to 15 knots. a chance of rain showers
and a slight chance of thunderstorms. waves calm to 2 feet.
.wednesday night...east winds 5 to 15 knots backing northeast
after midnight. waves calm to 2 feet.
.thursday...north winds less than 10 knots becoming northwest
5 to 15 knots by mid afternoon. waves calm to 2 feet.
.thursday night...west winds 5 to 15 knots becoming northwest
less than 10 knots after midnight. waves calm to 2 feet.
.friday...northwest winds less than 10 knots veering east. waves
calm to 2 feet.
.saturday...east winds 5 to 15 knots. waves calm to 2 feet.
$$
(11/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/22/2026 4:01 PM America/New_York.
Valid through 6/23/2026 4:00 AM America/New_York.
fzus63 kmqt 222001
glfls
expires:202606230800;;732508
open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon jun 22 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...
this afternoon, lake superior is between a 30.2 inch sprawling high
over northern manitoba and a 29.8 inch low over indiana. throughout
today, the low will weaken to 29.9 inches and push to the east coast
while the high shifts into hudson bay. the high expands over the
upper great lakes tuesday. late tuesday into wednesday, a weak 30.0
inch low will pass just south of lake superior from the dakotas. the
low will slowly push into the lower great lakes thursday while
ridging fills in behind associated with the high over hudson bay,
now at 30.1 inches. weak high pressure remains over lake superior
through saturday while low pressure deepens and approaches from over
the central plains.
lsz265-230800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt mon jun 22 2026
.late this afternoon...west winds 10 to 20 knots. waves calm to
2 feet.
.tonight...west winds 10 to 20 knots veering northwest after
midnight, then becoming west 5 to 15 knots late. waves calm to
2 feet.
.tuesday...west winds 5 to 15 knots backing east in the
afternoon, then veering southeast late. waves calm to 2 feet.
.tuesday night...southeast winds 5 to 15 knots increasing to
10 to 20 knots late. a chance of showers after midnight. waves
calm to 2 feet.
.wednesday...southeast winds 10 to 20 knots becoming east 15 to
25 knots by mid afternoon. showers through early afternoon. a
slight chance of thunderstorms. a chance of showers by mid
afternoon. waves building to 1 to 3 feet.
.wednesday night...east winds 10 to 20 knots becoming north 5 to
15 knots after midnight. a chance of showers. waves subsiding to
calm to 2 feet.
.thursday...north winds 5 to 15 knots backing northwest by mid
afternoon. waves calm to 2 feet.
.thursday night...northwest winds 5 to 15 knots. waves calm to
2 feet.
.friday...northwest winds 5 to 15 knots veering east. waves calm
to 2 feet.
.saturday...east winds 5 to 15 knots. waves calm to 2 feet.
$$
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