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(1/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/28/2026 3:07 AM America/New_York.
Valid through 6/28/2026 11:15 AM America/New_York.
fzus63 kdtx 280707
glflh
expires:202606281515;;038120
open lake forecast for lake huron
national weather service detroit/pontiac mi
307 am edt sun jun 28 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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.
lhz361-281515-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
307 am edt sun jun 28 2026
.today...light and variable winds becoming east 5 to 10 knots in
the afternoon. waves 2 feet or less.
.tonight...southeast winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight.
.monday...southeast winds 10 to 15 knots becoming east 15 to
20 knots early in the afternoon. a chance of showers in the
afternoon. waves 1 to 3 feet building to 3 to 5 feet in the late
morning and afternoon.
.monday night...east winds 15 to 20 knots becoming southeast
10 to 15 knots in the late evening and overnight. a chance of
showers. waves 3 to 5 feet.
.tuesday...south winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then backing to the east late in the
afternoon becoming southwest 10 to 15 knots late in the evening.
a chance of showers...then a chance of showers and thunderstorms
late in the evening. waves 2 to 4 feet subsiding to 1 to 3 feet
late in the morning...then building to 2 to 4 feet late in the
evening.
.wednesday...west winds 10 to 15 knots decreasing to 5 to
10 knots by midnight. a chance of showers and thunderstorms early
in the morning. a chance of showers by midnight. waves 2 to
4 feet subsiding to 1 to 3 feet.
.thursday...west winds 5 to 10 knots. a chance of showers until
afternoon. waves 2 feet or less.
$$
(2/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/28/2026 3:07 AM America/New_York.
Valid through 6/28/2026 11:15 AM America/New_York.
fzus63 kdtx 280707
glflh
expires:202606281515;;038121
open lake forecast for lake huron
national weather service detroit/pontiac mi
307 am edt sun jun 28 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.
lhz362-363-281515-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
307 am edt sun jun 28 2026
.today...light and variable winds. waves 2 feet or less.
.tonight...light and variable winds becoming northeast 5 to
10 knots late in the evening...then veering to the southeast
after midnight. waves 2 feet or less.
.monday...southeast winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet
building to 2 to 4 feet in the late morning and afternoon.
.monday night...southeast winds 15 to 20 knots becoming south
10 to 15 knots after midnight. a chance of showers after
midnight. waves 3 to 5 feet.
.tuesday...south winds 10 to 15 knots. a chance of showers. waves
3 to 5 feet.
.wednesday...southwest winds 10 to 15 knots becoming south 5 to
10 knots early in the evening...then veering to the southwest by
midnight. waves 2 to 4 feet subsiding to 1 to 3 feet by midnight.
.thursday...southwest winds 5 to 10 knots backing to the
southeast early in the evening...then becoming light and variable
by midnight. a chance of showers . waves 2 feet or less.
$$
(3/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/28/2026 3:07 AM America/New_York.
Valid through 6/28/2026 11:15 AM America/New_York.
fzus63 kdtx 280707
glflh
expires:202606281515;;038122
open lake forecast for lake huron
national weather service detroit/pontiac mi
307 am edt sun jun 28 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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.
lhz462>464-281515-
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-
307 am edt sun jun 28 2026
.today...light and variable winds becoming north 5 to 10 knots.
waves 2 feet or less.
.tonight...northeast winds 5 to 10 knots veering to the southeast
after midnight. waves 2 feet or less.
.monday...southeast winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. waves 1 to 3 feet.
.monday night...southeast winds 10 to 15 knots. waves 2 to
4 feet.
.tuesday...south winds 10 to 15 knots. waves 2 to 4 feet.
.wednesday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then
increasing to 10 to 15 knots early in the evening decreasing to
5 to 10 knots by midnight. waves 1 to 3 feet.
.thursday...southwest winds 5 to 10 knots. a chance of showers .
waves 2 feet or less.
$$
(4/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 6/28/2026 8:59 AM US/Central.
Valid through 6/28/2026 4:15 PM US/Central.
fzus63 kmkx 281359
glflm
expires:202606282115;;053060
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cdt sun jun 28 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 in the northern high plains is
expected to deepen to around 29.3 inches over the northern great
plains by this evening, bringing increasing easterly winds this
morning, then southeasterly winds by this evening. winds will
shift southerly and continue to increase into monday as the low
lifts into the canadian prairies and a warm front moves northward
through open waters. low pressure will lift into northern ontario
early wednesday, bringing gusty southwesterly winds. winds will
gradually diminish into thursday, but will remain southwesterly as
additional low pressure begins to develop in the northern great
plains.
lmz261-362-364-366-563-565-567-868-282115-
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-
859 am cdt sun jun 28 2026
sheboygan wi to pentwater mi north...
.rest of today...east winds 5 to 10 kt increasing to 10 to 15 kt
early this afternoon, then becoming northeast 10 to 20 kt late.
waves 1 to 2 ft.
.tonight...east winds 10 to 20 kt becoming southeast 15 to 25 kt.
chance of showers and thunderstorms overnight. waves 1 to 3 ft
building to 3 to 5 ft.
.monday...southeast winds to 30 kt becoming south. chance of
showers. waves 4 to 7 ft occasionally to 9 ft.
.monday night...south winds to 30 kt. waves 5 to 8 ft
occasionally to 10 ft.
.tuesday...south winds to 30 kt. waves 4 to 6 ft occasionally to
8 ft building to 4 to 7 ft occasionally to 9 ft.
.tuesday night...south winds to 30 kt becoming southwest. chance
of showers and thunderstorms. waves 4 to 7 ft occasionally to
9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.wednesday...southwest winds 15 to 25 kt becoming south. waves
3 to 5 ft.
.thursday...southwest winds 10 to 20 kt increasing to 15 to
25 kt. waves 2 to 4 ft.
$$
(5/11)
Latest Great Lakes Marine Forecast by KMKX
Issued 6/28/2026 8:59 AM US/Central.
Valid through 6/28/2026 4:15 PM US/Central.
fzus63 kmkx 281359
glflm
expires:202606282115;;053061
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cdt sun jun 28 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 in the northern high plains is
expected to deepen to around 29.3 inches over the northern great
plains by this evening, bringing increasing easterly winds this
morning, then southeasterly winds by this evening. winds will
shift southerly and continue to increase into monday as the low
lifts into the canadian prairies and a warm front moves northward
through open waters. low pressure will lift into northern ontario
early wednesday, bringing gusty southwesterly winds. winds will
gradually diminish into thursday, but will remain southwesterly as
additional low pressure begins to develop in the northern great
plains.
lmz080-669-671-673-675-777-779-870-872-874-876-878-282115-
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-
859 am cdt sun jun 28 2026
sheboygan wi to pentwater mi south...
.rest of today...east winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 2 ft.
.tonight...east winds 10 to 20 kt becoming southeast 15 to 25 kt.
chance of showers and thunderstorms overnight. waves 2 to 4 ft
building to 3 to 5 ft.
.monday...southeast winds to 30 kt becoming south. waves 4 to
7 ft occasionally to 9 ft.
.monday night...south winds to 30 kt diminishing to 15 to 25 kt.
waves 4 to 7 ft occasionally to 9 ft.
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft.
.tuesday night...southwest winds to 30 kt diminishing to 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.wednesday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 3 to 5 ft.
.thursday...southwest winds 10 to 20 kt becoming south. waves
2 to 4 ft.
$$
(6/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/28/2026 10:01 AM America/New_York.
Valid through 6/28/2026 4:00 PM America/New_York.
fzus63 kmqt 281401
glfls
expires:202606282000;;053138
open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jun 28 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...
through this afternoon, a 29.4 low will wrap to the northeast then
northwest to southern saskatchewan, deepening to 20.3 inches while a
30.1 inch high remains stationary and holds strength over the hudson
bay. by tomorrow morning, the high will shift southeast to the east
of lake erie as the saskatchewan low regresses southwest at 29.5
inches to montana while another low at 29.4 inches moves from
colorado to the northern plains. the 2nd low moves to southern
manitoba tomorrow night as high pressure shifts off the east coast,
still at 30.1 inches. tuesday, the low shifts north to lake winnipeg
and deepens to 29.2 inches. the low then weakens to 29.4 inches as
it crosses northern ontario by midday wednesday. as the low shifts
east through thursday, weak high pressure around 30.0 inches expands
over much of the eastern conus.
lsz162-282000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt sun jun 28 2026 /900 am cdt sun jun 28 2026/
.rest of today...northeast winds 10 to 20 knots increasing to
15 to 25 knots in the afternoon, then veering east late. a slight
chance of showers. a slight chance of thunderstorms by mid
afternoon. waves calm to 2 feet building to 2 to 4 feet.
.tonight...east winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. showers likely through midnight. a
chance of thunderstorms. a chance of showers after midnight.
waves subsiding to 1 to 3 feet.
.monday...northeast winds 10 to 20 knots increasing to 15 to
25 knots late. a chance of showers. a chance of thunderstorms by
mid afternoon. waves subsiding to calm to 2 feet, then building
to 2 to 4 feet.
.monday night...northeast winds 15 to 25 knots becoming east 5 to
15 knots after midnight. showers likely through midnight. a
chance of thunderstorms. a chance of showers after midnight.
waves subsiding to 1 to 3 feet.
.tuesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a slight chance of showers and
thunderstorms by mid afternoon. waves subsiding to calm to
2 feet.
.tuesday night...southwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. a chance of showers. waves calm to
2 feet.
.wednesday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers. waves building to 1 to 3 feet,
then subsiding to calm to 2 feet.
.thursday...east winds 5 to 15 knots backing northeast. a chance
of showers and thunderstorms. waves calm to 2 feet.
$$
(7/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/28/2026 10:01 AM America/New_York.
Valid through 6/28/2026 4:00 PM America/New_York.
fzus63 kmqt 281401
glfls
expires:202606282000;;053139
open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jun 28 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...
through this afternoon, a 29.4 low will wrap to the northeast then
northwest to southern saskatchewan, deepening to 20.3 inches while a
30.1 inch high remains stationary and holds strength over the hudson
bay. by tomorrow morning, the high will shift southeast to the east
of lake erie as the saskatchewan low regresses southwest at 29.5
inches to montana while another low at 29.4 inches moves from
colorado to the northern plains. the 2nd low moves to southern
manitoba tomorrow night as high pressure shifts off the east coast,
still at 30.1 inches. tuesday, the low shifts north to lake winnipeg
and deepens to 29.2 inches. the low then weakens to 29.4 inches as
it crosses northern ontario by midday wednesday. as the low shifts
east through thursday, weak high pressure around 30.0 inches expands
over much of the eastern conus.
lsz263-282000-
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 am edt sun jun 28 2026
.rest of today...east winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a slight chance of showers by mid
afternoon. waves calm to 2 feet building to 2 to 4 feet.
.tonight...east winds 15 to 25 knots becoming southeast 10 to
20 knots after midnight, then becoming east 5 to 15 knots late. a
chance of showers and thunderstorms. waves subsiding to 1 to
3 feet.
.monday...east winds 5 to 15 knots increasing to 15 to 25 knots
late. a chance of showers. a slight chance of thunderstorms by
mid afternoon. waves building to 2 to 4 feet.
.monday night...east winds 15 to 25 knots becoming south 10 to
20 knots after midnight. showers likely and a chance of
thunderstorms. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet.
.tuesday...southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a slight chance of showers and
thunderstorms by mid afternoon. waves subsiding to calm to
2 feet.
.tuesday night...southwest winds 10 to 20 knots. a chance of
showers. waves building to 1 to 3 feet.
.wednesday...southwest winds 10 to 20 knots. a chance of showers.
waves building to 2 to 4 feet, then subsiding to calm to 2 feet.
.thursday...east winds 5 to 15 knots backing northeast. a chance
of showers. waves calm to 2 feet.
$$
(8/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/28/2026 10:01 AM America/New_York.
Valid through 6/28/2026 4:00 PM America/New_York.
fzus63 kmqt 281401
glfls
expires:202606282000;;053140
open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jun 28 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...
through this afternoon, a 29.4 low will wrap to the northeast then
northwest to southern saskatchewan, deepening to 20.3 inches while a
30.1 inch high remains stationary and holds strength over the hudson
bay. by tomorrow morning, the high will shift southeast to the east
of lake erie as the saskatchewan low regresses southwest at 29.5
inches to montana while another low at 29.4 inches moves from
colorado to the northern plains. the 2nd low moves to southern
manitoba tomorrow night as high pressure shifts off the east coast,
still at 30.1 inches. tuesday, the low shifts north to lake winnipeg
and deepens to 29.2 inches. the low then weakens to 29.4 inches as
it crosses northern ontario by midday wednesday. as the low shifts
east through thursday, weak high pressure around 30.0 inches expands
over much of the eastern conus.
lsz264-282000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt sun jun 28 2026
.rest of today...east winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a slight chance of showers by late
morning. waves calm to 2 feet building to 1 to 3 feet.
.tonight...southeast winds 10 to 20 knots. a chance of showers
through midnight. a chance of thunderstorms. showers likely after
midnight. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet.
.monday...southeast winds 10 to 20 knots backing east late. a
chance of showers and a slight chance of thunderstorms. waves
building to 3 to 5 feet occasionally to 7 feet.
.monday night...southeast winds 10 to 20 knots veering south
after midnight. showers and a chance of thunderstorms. waves 3 to
5 feet occasionally to 7 feet.
.tuesday...southwest winds 5 to 15 knots backing south by mid
afternoon. a slight chance of showers and thunderstorms by mid
afternoon. waves subsiding to calm to 2 feet.
.tuesday night...south winds 10 to 20 knots veering southwest
after midnight. a chance of showers. waves building to 1 to
3 feet.
.wednesday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers. waves building to 2 to 4 feet,
then subsiding to calm to 2 feet.
.thursday...southwest winds 5 to 15 knots backing south. a chance
of showers. waves calm to 2 feet.
$$
(9/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/28/2026 10:01 AM America/New_York.
Valid through 6/28/2026 4:00 PM America/New_York.
fzus63 kmqt 281401
glfls
expires:202606282000;;053141
open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jun 28 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...
through this afternoon, a 29.4 low will wrap to the northeast then
northwest to southern saskatchewan, deepening to 20.3 inches while a
30.1 inch high remains stationary and holds strength over the hudson
bay. by tomorrow morning, the high will shift southeast to the east
of lake erie as the saskatchewan low regresses southwest at 29.5
inches to montana while another low at 29.4 inches moves from
colorado to the northern plains. the 2nd low moves to southern
manitoba tomorrow night as high pressure shifts off the east coast,
still at 30.1 inches. tuesday, the low shifts north to lake winnipeg
and deepens to 29.2 inches. the low then weakens to 29.4 inches as
it crosses northern ontario by midday wednesday. as the low shifts
east through thursday, weak high pressure around 30.0 inches expands
over much of the eastern conus.
lsz265-282000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt sun jun 28 2026
.rest of today...east winds 10 to 20 knots increasing to 20 to
30 knots. waves calm to 2 feet building to 2 to 4 feet.
.tonight...southeast winds 15 to 25 knots. a slight chance of
showers through midnight. a chance of thunderstorms. showers
after midnight. waves subsiding to 1 to 3 feet, then building to
2 to 4 feet.
.monday...southeast winds 15 to 25 knots. a chance of showers and
a slight chance of thunderstorms through early afternoon. waves
building to 3 to 5 feet occasionally to 7 feet.
.monday night...southeast winds 20 to 30 knots becoming south
15 to 25 knots after midnight. a chance of showers through
midnight. a slight chance of thunderstorms. showers likely after
midnight. waves subsiding to 1 to 3 feet.
.tuesday...south winds 10 to 20 knots backing southeast by mid
afternoon. a chance of showers and a slight chance of
thunderstorms by mid afternoon. waves subsiding to calm to
2 feet.
.tuesday night...southwest winds 15 to 25 knots. a chance of
showers. waves calm to 2 feet.
.wednesday...southwest winds 10 to 20 knots. a chance of showers.
waves calm to 2 feet.
.thursday...east winds 10 to 20 knots becoming south 5 to
15 knots. a chance of showers. waves calm to 2 feet.
$$
(10/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/28/2026 10:01 AM America/New_York.
Valid through 6/28/2026 4:00 PM America/New_York.
fzus63 kmqt 281401
glfls
expires:202606282000;;053142
open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jun 28 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...
through this afternoon, a 29.4 low will wrap to the northeast then
northwest to southern saskatchewan, deepening to 20.3 inches while a
30.1 inch high remains stationary and holds strength over the hudson
bay. by tomorrow morning, the high will shift southeast to the east
of lake erie as the saskatchewan low regresses southwest at 29.5
inches to montana while another low at 29.4 inches moves from
colorado to the northern plains. the 2nd low moves to southern
manitoba tomorrow night as high pressure shifts off the east coast,
still at 30.1 inches. tuesday, the low shifts north to lake winnipeg
and deepens to 29.2 inches. the low then weakens to 29.4 inches as
it crosses northern ontario by midday wednesday. as the low shifts
east through thursday, weak high pressure around 30.0 inches expands
over much of the eastern conus.
lsz266-282000-
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 am edt sun jun 28 2026
.rest of today...southeast winds 10 to 20 knots backing east in
the afternoon. waves calm to 2 feet building to 1 to 3 feet.
.tonight...southeast winds 10 to 20 knots increasing to 20 to
30 knots. a chance of showers. a chance of thunderstorms after
midnight. waves building to 2 to 4 feet.
.monday...southeast winds 20 to 30 knots diminishing to 15 to
25 knots late. a chance of showers and a slight chance of
thunderstorms through early afternoon. waves building to 3 to
5 feet occasionally to 7 feet.
.monday night...southeast winds 20 to 30 knots becoming south
15 to 25 knots after midnight. a chance of showers through
midnight. a slight chance of thunderstorms. showers likely after
midnight. waves building to 3 to 6 feet occasionally to 8 feet.
.tuesday...south winds 10 to 20 knots. a chance of showers and a
slight chance of thunderstorms. waves subsiding to calm to
2 feet.
.tuesday night...south winds 15 to 25 knots veering southwest
after midnight. a chance of showers. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.
.wednesday...southwest winds 5 to 15 knots backing south. a
chance of showers. waves subsiding to calm to 2 feet.
.thursday...south winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet.
$$
(11/11)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/28/2026 10:01 AM America/New_York.
Valid through 6/28/2026 4:00 PM America/New_York.
fzus63 kmqt 281401
glfls
expires:202606282000;;053143
open lake forecast for lake superior
national weather service marquette mi
1000 am edt sun jun 28 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...
through this afternoon, a 29.4 low will wrap to the northeast then
northwest to southern saskatchewan, deepening to 20.3 inches while a
30.1 inch high remains stationary and holds strength over the hudson
bay. by tomorrow morning, the high will shift southeast to the east
of lake erie as the saskatchewan low regresses southwest at 29.5
inches to montana while another low at 29.4 inches moves from
colorado to the northern plains. the 2nd low moves to southern
manitoba tomorrow night as high pressure shifts off the east coast,
still at 30.1 inches. tuesday, the low shifts north to lake winnipeg
and deepens to 29.2 inches. the low then weakens to 29.4 inches as
it crosses northern ontario by midday wednesday. as the low shifts
east through thursday, weak high pressure around 30.0 inches expands
over much of the eastern conus.
lsz267-282000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt sun jun 28 2026
.rest of today...southeast winds 5 to 15 knots backing east in
the afternoon, then increasing to 10 to 20 knots late. waves calm
to 2 feet.
.tonight...southeast winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a slight chance of showers and
thunderstorms after midnight. waves building to 2 to 4 feet.
.monday...southeast winds 15 to 25 knots. a chance of showers and
a slight chance of thunderstorms. waves building to 3 to 5 feet
occasionally to 7 feet.
.monday night...southeast winds 15 to 25 knots veering south
after midnight. a chance of showers through midnight. a slight
chance of thunderstorms. showers likely after midnight. waves
subsiding to 2 to 4 feet.
.tuesday...south winds 10 to 20 knots. a chance of showers and a
slight chance of thunderstorms. waves subsiding to calm to
2 feet.
.tuesday night...south winds 15 to 25 knots becoming southwest
10 to 20 knots after midnight. a chance of showers and
thunderstorms. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet.
.wednesday...southwest winds 5 to 15 knots backing south. a
chance of showers. waves subsiding to calm to 2 feet.
.thursday...south winds 5 to 15 knots backing southeast. a chance
of showers. waves calm to 2 feet.
$$
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