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(1/21)
Latest Great Lakes Marine Forecast by KBUF
Issued 6/9/2026 4:02 AM America/New_York.
Valid through 6/9/2026 11:00 AM America/New_York.
fzus61 kbuf 090802
glflo
expires:202606091500;;432369
open lake forecast for lake ontario
national weather service buffalo ny
402 am edt tue jun 9 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 30.2 inch high over the new england coast will track
offshore today, where it will then remain anchored through thursday.
meanwhile a 29.7 inch low will track from lower michigan to southern
quebec tonight and wednesday, with another 29.7 inch trough crossing
the lake late friday. a cold front will then cross the lake late
saturday.
loz063>065-091500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt tue jun 9 2026
.today...southeast winds 15 to 20 knots becoming northeast 5 to
15 knots. a chance of showers and thunderstorms late. waves
2 feet or less.
.tonight...northeast winds 15 to 20 knots becoming southeast and
diminishing to around 10 knots. a chance of showers and
thunderstorms early, then a chance of showers. a chance of
showers and thunderstorms late. waves 1 foot or less.
.wednesday...southeast winds 5 to 15 knots becoming south.
showers with a chance of thunderstorms. waves 2 feet or less.
.wednesday night...southwest winds 5 to 10 knots. showers likely
with a chance of thunderstorms in the evening, then showers
likely overnight. waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots. showers likely during
the day, then a chance of showers thursday night. waves 2 feet or
less.
.friday...south winds 5 to 15 knots becoming west. showers with a
chance of thunderstorms. waves 2 feet or less.
.saturday...west winds 5 to 15 knots. waves 1 to 3 feet.
winds and waves higher in and near thunderstorms.
$$
(2/21)
Latest Great Lakes Marine Forecast by KBUF
Issued 6/9/2026 4:02 AM America/New_York.
Valid through 6/9/2026 11:00 AM America/New_York.
fzus61 kbuf 090802
glflo
expires:202606091500;;432368
open lake forecast for lake ontario
national weather service buffalo ny
402 am edt tue jun 9 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a 30.2 inch high over the new england coast will track
offshore today, where it will then remain anchored through thursday.
meanwhile a 29.7 inch low will track from lower michigan to southern
quebec tonight and wednesday, with another 29.7 inch trough crossing
the lake late friday. a cold front will then cross the lake late
saturday.
loz062-091500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt tue jun 9 2026
.today...east winds 5 to 15 knots. a chance of showers and
thunderstorms late. waves 1 foot or less.
.tonight...south winds 15 to 20 knots becoming southeast 5 to
15 knots. a chance of showers and thunderstorms through the early
overnight, then showers likely with a chance of thunderstorms
late. waves 1 foot or less.
.wednesday...south winds 5 to 15 knots becoming southwest.
showers likely with a chance of thunderstorms. waves 2 feet or
less.
.wednesday night...southwest winds 5 to 15 knots. a chance of
showers and thunderstorms in the evening, then showers likely
overnight. waves 1 to 2 feet.
.thursday...southwest winds 5 to 15 knots. showers likely during
the day, then a chance of showers thursday night. waves 1 to
2 feet.
.friday...southwest winds 10 to 15 knots becoming west. showers
likely with a chance of thunderstorms. waves 1 to 3 feet.
.saturday...west winds 10 to 15 knots. waves 1 to 3 feet.
winds and waves higher in and near thunderstorms.
$$
(3/21)
Latest Great Lakes Marine Forecast by KCLE
Issued 6/9/2026 3:41 AM America/New_York.
Valid through 6/9/2026 10:15 AM America/New_York.
fzus61 kcle 090741
glfle
expires:202606091415;;431762
open lake forecast for lake erie
national weather service cleveland oh
341 am edt tue jun 9 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...
pressure will gradually fall from 30.00 inches today to 29.80
inches by thursday night in prevailing southwest winds. a cold
front will track west to east across lake erie beginning early
friday. high pressure 30.00 inches builds back in over the lake
saturday.
lez165>167-091415-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
341 am edt tue jun 9 2026
.today...south winds 10 to 15 knots. a slight chance of showers
and thunderstorms this morning, then a chance of showers and
thunderstorms early this afternoon. showers likely with a chance
of thunderstorms late. waves 1 to 2 feet.
.tonight...south winds 10 to 15 knots becoming southwest. a
chance of showers and thunderstorms through the early overnight,
then a chance of showers with a slight chance of thunderstorms
late. waves 1 to 3 feet.
.wednesday...southwest winds 10 to 15 knots. waves 1 to 3 feet.
.wednesday night...southwest winds 10 to 15 knots. a chance of
showers overnight. waves 1 to 3 feet.
.thursday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers and thunderstorms. waves 2 to
4 feet subsiding to 1 to 3 feet.
.friday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. showers likely with a chance of thunderstorms during
the day. waves 2 to 4 feet subsiding to 1 to 2 feet.
.saturday...west winds around 10 knots. waves 1 to 2 feet.
winds and waves higher in and near thunderstorms.
$$
(4/21)
Latest Great Lakes Marine Forecast by KCLE
Issued 6/9/2026 3:41 AM America/New_York.
Valid through 6/9/2026 10:15 AM America/New_York.
fzus61 kcle 090741
glfle
expires:202606091415;;431763
open lake forecast for lake erie
national weather service cleveland oh
341 am edt tue jun 9 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...
pressure will gradually fall from 30.00 inches today to 29.80
inches by thursday night in prevailing southwest winds. a cold
front will track west to east across lake erie beginning early
friday. high pressure 30.00 inches builds back in over the lake
saturday.
lez061-168-169-091415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
341 am edt tue jun 9 2026
.today...south winds 5 to 10 knots becoming southeast. a slight
chance of showers and thunderstorms. a chance of showers and
thunderstorms late. waves 2 feet or less.
.tonight...south winds 5 to 15 knots. a chance of showers and
thunderstorms in the evening, then a chance of showers with a
slight chance of thunderstorms after midnight. waves 1 to 3 feet.
.wednesday...southwest winds 10 to 15 knots. a chance of showers
in the morning, then a chance of showers and thunderstorms in the
afternoon. waves 1 to 3 feet.
.wednesday night...southwest winds 5 to 15 knots. a chance of
showers and thunderstorms in the evening, then showers likely
with a chance of thunderstorms overnight. waves 1 to 3 feet.
.thursday...southwest winds 5 to 15 knots. a chance of showers.
waves 1 to 3 feet.
.friday...southwest winds 5 to 15 knots becoming west. showers
likely with a chance of thunderstorms during the day. waves 1 to
3 feet.
.saturday...west winds 5 to 15 knots. waves 1 to 2 feet.
winds and waves higher in and near thunderstorms.
$$
(5/21)
Latest Great Lakes Marine Forecast by KCLE
Issued 6/9/2026 3:41 AM America/New_York.
Valid through 6/9/2026 10:15 AM America/New_York.
fzus61 kcle 090741
glfle
expires:202606091415;;431761
open lake forecast for lake erie
national weather service cleveland oh
341 am edt tue jun 9 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...
pressure will gradually fall from 30.00 inches today to 29.80
inches by thursday night in prevailing southwest winds. a cold
front will track west to east across lake erie beginning early
friday. high pressure 30.00 inches builds back in over the lake
saturday.
lez162>164-091415-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
341 am edt tue jun 9 2026
.today...south winds 10 to 15 knots. a slight chance of showers
and thunderstorms early, then a chance of showers with a slight
chance of thunderstorms late this morning. a chance of showers
and thunderstorms this afternoon. waves 1 to 2 feet.
.tonight...south winds 10 to 15 knots becoming southwest. showers
likely with a chance of thunderstorms in the evening, then a
chance of showers with a slight chance of thunderstorms after
midnight. a slight chance of showers and thunderstorms late.
waves 1 to 2 feet.
.wednesday...southwest winds around 10 knots. waves 1 to 2 feet.
.wednesday night...southwest winds 10 to 15 knots. a chance of
showers and thunderstorms overnight. waves 1 to 2 feet.
.thursday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers and thunderstorms during the day,
then showers likely with a chance of thunderstorms thursday
night. waves 1 to 3 feet.
.friday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers and thunderstorms during the day.
waves 1 to 3 feet.
.saturday...west winds 10 to 15 knots. waves 1 to 2 feet.
winds and waves higher in and near thunderstorms.
$$
(6/21)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/9/2026 4:11 AM America/New_York.
Valid through 6/9/2026 12:15 PM America/New_York.
fzus63 kdtx 090811
glfsc
expires:202606091615;;433483
lake st clair forecast
national weather service detroit/pontiac mi
411 am edt tue jun 9 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...a weak low pressure system, 29.80 inches, will track
across lower mi through tonight, bringing scattered to numerous
showers and thunderstorms. a warm and stormy pattern is forecast
late wednesday into thursday ahead of the next cold front on
friday.
lcz460-091615-
lake st clair-
411 am edt tue jun 9 2026
.today...south winds 5 to 10 knots increasing to 10 to 15 knots in
the late morning and afternoon. light showers early in the morning.
a chance of light showers late in the morning...then light showers
and a chance of thunderstorms in the afternoon. waves 2 feet or
less.
.tonight...south winds 10 to 15 knots becoming southwest 5 to 10
knots in the late evening and overnight. partly cloudy. light
showers likely and a chance of thunderstorms early in the
evening...then a chance of showers and thunderstorms late in the
evening. waves 2 feet or less.
.wednesday...west winds 5 to 10 knots. mostly sunny. waves 2 feet or
less.
.wednesday night...southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. partly cloudy. a chance
of showers and thunderstorms ...then light showers likely and a
chance of thunderstorms after midnight. waves 2 feet or less.
.thursday...southwest winds 10 to 15 knots. partly cloudy. light
showers likely and a chance of thunderstorms in the morning. a
chance of light showers in the afternoon and evening. a chance of
thunderstorms in the evening. waves 2 feet or less.
.friday...west winds 15 to 20 knots. mostly clear. a chance of
showers and thunderstorms. waves 1 to 3 feet.
.saturday...west winds 10 to 15 knots. mostly clear. waves 2 feet or
less.
$$
(7/21)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/9/2026 4:08 AM America/New_York.
Valid through 6/9/2026 12:15 PM America/New_York.
fzus63 kdtx 090808
glflh
expires:202606091615;;432979
open lake forecast for lake huron
national weather service detroit/pontiac mi
408 am edt tue jun 9 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...a weak low pressure system, 29.80 inches, will track
across lower mi through tonight, bringing scattered to numerous
showers and thunderstorms. a warm and stormy pattern is forecast
late wednesday into thursday ahead of the next cold front on
friday.
lhz361-091615-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
408 am edt tue jun 9 2026
.today...east winds 5 to 10 knots increasing to 10 to 15 knots in
the late morning and afternoon. showers in the morning...then
showers likely in the afternoon. waves 1 to 3 feet.
.tonight...east winds 5 to 10 knots in the evening becoming light
and variable. showers likely in the evening...then a chance of
showers after midnight. waves 1 to 3 feet.
.wednesday...west winds 5 to 10 knots. waves 2 feet or less.
.wednesday night...north winds 5 to 10 knots veering to the
southeast in the late evening and overnight. showers likely and a
chance of thunderstorms in the evening...then showers likely
after midnight. waves 2 feet or less.
.thursday...south winds 5 to 10 knots veering to the west late in
the morning...then becoming southeast 15 to 20 knots late in the
evening. showers late in the afternoon. waves 1 to 3 feet
building to 4 to 6 feet late in the evening. waves occasionally
around 8 feet.
.friday...west winds 15 to 20 knots decreasing to 10 to 15 knots
. showers likely early in the morning. waves 3 to 5 feet.
.saturday...west winds 10 to 15 knots becoming northwest 5 to
10 knots by midnight. waves 2 to 4 feet subsiding to 1 to 3 feet
by midnight.
$$
(8/21)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/9/2026 4:08 AM America/New_York.
Valid through 6/9/2026 12:15 PM America/New_York.
fzus63 kdtx 090808
glflh
expires:202606091615;;432980
open lake forecast for lake huron
national weather service detroit/pontiac mi
408 am edt tue jun 9 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...a weak low pressure system, 29.80 inches, will track
across lower mi through tonight, bringing scattered to numerous
showers and thunderstorms. a warm and stormy pattern is forecast
late wednesday into thursday ahead of the next cold front on
friday.
lhz362-363-091615-
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-
408 am edt tue jun 9 2026
.today...east winds 5 to 10 knots. a chance of showers. waves
1 to 3 feet.
.tonight...east winds 5 to 10 knots. showers likely in the
evening...then a chance of showers after midnight. waves 1 to
3 feet.
.wednesday...southwest winds 5 to 10 knots veering to the
northeast early in the afternoon. waves 2 feet or less.
.wednesday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots in the late evening and overnight. a chance of
showers and thunderstorms in the evening...then showers likely
after midnight. waves 1 to 3 feet building to 2 to 4 feet after
midnight.
.thursday...south winds 10 to 15 knots becoming southwest 5 to
10 knots late in the morning...then becoming southeast 10 to
15 knots late in the afternoon becoming south 15 to 20 knots late
in the evening. showers likely late in the afternoon. waves 2 to
4 feet building to 4 to 6 feet late in the evening. waves
occasionally around 8 feet.
.friday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then becoming west 10 to 15 knots
by midnight. showers likely early in the morning. waves 3 to
5 feet.
.saturday...southwest winds 10 to 15 knots veering to the
northwest by midnight. waves 2 to 4 feet.
$$
(9/21)
Latest Great Lakes Marine Forecast by KDTX
Issued 6/9/2026 4:08 AM America/New_York.
Valid through 6/9/2026 12:15 PM America/New_York.
fzus63 kdtx 090808
glflh
expires:202606091615;;432981
open lake forecast for lake huron
national weather service detroit/pontiac mi
408 am edt tue jun 9 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...a weak low pressure system, 29.80 inches, will track
across lower mi through tonight, bringing scattered to numerous
showers and thunderstorms. a warm and stormy pattern is forecast
late wednesday into thursday ahead of the next cold front on
friday.
lhz462>464-091615-
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-
408 am edt tue jun 9 2026
.today...southeast winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. showers likely in the
morning...then a chance of showers and thunderstorms in the
afternoon. waves 1 to 3 feet.
.tonight...southeast winds 10 to 15 knots becoming south 5 to
10 knots after midnight. showers likely and a chance of
thunderstorms in the evening. waves 1 to 3 feet.
.wednesday...southwest winds 5 to 10 knots veering to the west in
the late morning and early afternoon...then veering to the west
5 to 10 knots early in the afternoon. waves 2 feet or less.
.wednesday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots after midnight. a chance of showers and
thunderstorms in the evening...then showers likely after
midnight. waves 2 feet or less.
.thursday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then backing to the south late in
the afternoon increasing to 10 to 15 knots late in the evening.
showers likely in the morning. rain showers likely late in the
afternoon. a chance of 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.
.friday...south winds 10 to 15 knots veering to the west. showers
likely and a chance of thunderstorms early in the morning. waves
2 to 4 feet.
.saturday...west winds 10 to 15 knots becoming northwest 5 to
10 knots by midnight. waves 1 to 3 feet building to 2 to 4 feet.
$$
(10/21)
Latest Great Lakes Marine Forecast by KMKX
Issued 6/9/2026 7:01 AM US/Central.
Valid through 6/9/2026 10:30 AM US/Central.
fzus63 kmkx 091201 aaa
glflm
expires:202606091530;;442075
open lake forecast for lake michigan...updated
national weather service milwaukee/sullivan wi
701 am cdt tue jun 9 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...
only updated marine dense fog advisory headline area.
light and variable winds will increase and become northerly by
this evening as low pressure of 29.9 inches crosses the center
part of lake michigan. dense fog is expected at times through
tonight due to a warm and humid airmass over the relatively cool
waters. a marine dense fog advisory is in effect for central
portions of the lake at this time. an advisory that covers more of
the lake may be needed tonight. there is a chance of showers with
a few rumbles of thunder through tonight as well.
breezy southerly winds are expected wednesday and thursday as
strong low pressure around 29.2 inches tracks from southern
saskatchewan to hudson bay. multiple rounds of showers and storms
are likely during this time, along with a chance for severe
storms. west to southwest winds and dry weather are then expected
friday behind the departing low.
lmz669-870-091530-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
701 am cdt tue jun 9 2026
sheboygan wi to pentwater mi south to port washington wi to
whitehall mi...
...dense fog advisory in effect until noon cdt today...
.today...southeast winds 10 to 20 kt becoming southwest 5 to
10 kt late this morning, then veering to northwest 10 to 15 kt
early this afternoon becoming north late. areas of dense fog.
scattered showers and slight chance of thunderstorms this
morning, then slight chance of showers and thunderstorms this
afternoon. waves 1 to 2 ft.
.tonight...north winds 5 to 10 kt backing to west. patchy fog in
the evening, then areas of dense fog overnight. waves 1 to 2 ft.
.wednesday...south winds 5 to 10 kt increasing to 15 to 25 kt.
areas of dense fog in the morning. chance of showers and
thunderstorms in the afternoon. waves 1 to 2 ft building to 3 to
5 ft.
.wednesday night...south winds 15 to 25 kt becoming southwest.
showers with a chance of thunderstorms. waves 4 to 6 ft
occasionally to 8 ft.
.thursday...southwest winds 10 to 20 kt becoming south. waves
3 to 5 ft.
.thursday night...southwest winds 15 to 25 kt becoming west 10 to
20 kt. showers with a chance of thunderstorms. waves 3 to 5 ft.
.friday...west winds 10 to 20 kt becoming southwest. waves 3 to
5 ft.
.saturday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft.
$$
(11/21)
Latest Great Lakes Marine Forecast by KMKX
Issued 6/9/2026 7:01 AM US/Central.
Valid through 6/9/2026 10:30 AM US/Central.
fzus63 kmkx 091201 aaa
glflm
expires:202606091530;;442074
open lake forecast for lake michigan...updated
national weather service milwaukee/sullivan wi
701 am cdt tue jun 9 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...
only updated marine dense fog advisory headline area.
light and variable winds will increase and become northerly by
this evening as low pressure of 29.9 inches crosses the center
part of lake michigan. dense fog is expected at times through
tonight due to a warm and humid airmass over the relatively cool
waters. a marine dense fog advisory is in effect for central
portions of the lake at this time. an advisory that covers more of
the lake may be needed tonight. there is a chance of showers with
a few rumbles of thunder through tonight as well.
breezy southerly winds are expected wednesday and thursday as
strong low pressure around 29.2 inches tracks from southern
saskatchewan to hudson bay. multiple rounds of showers and storms
are likely during this time, along with a chance for severe
storms. west to southwest winds and dry weather are then expected
friday behind the departing low.
lmz080-671-673-675-777-779-872-874-876-878-091530-
lake michigan from michigan city in to st. joseph mi 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 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-
701 am cdt tue jun 9 2026
port washington wi to whitehall mi south...
.today...south winds 10 to 15 kt becoming west 5 to 10 kt. patchy
fog. scattered showers and slight chance of thunderstorms this
morning, then slight chance of showers and thunderstorms this
afternoon. waves 1 to 2 ft.
.tonight...northwest winds 5 to 10 kt backing to southwest.
patchy fog. slight chance of showers and thunderstorms overnight.
waves 1 to 2 ft.
.wednesday...south winds 5 to 10 kt increasing to 10 to 20 kt.
patchy dense fog in the morning. waves 1 ft or less building to
3 to 5 ft.
.wednesday night...south winds 15 to 25 kt becoming southwest.
showers with a chance of thunderstorms in the evening, then
showers likely with a chance of thunderstorms overnight. waves
4 to 6 ft occasionally to 8 ft.
.thursday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. showers likely with a chance of thunderstorms in the
afternoon. waves 3 to 5 ft.
.thursday night...southwest winds 15 to 25 kt becoming west.
showers with a chance of thunderstorms. waves 3 to 5 ft.
.friday...west winds 10 to 20 kt. waves 3 to 5 ft.
.saturday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft.
$$
(12/21)
Latest Great Lakes Marine Forecast by KMKX
Issued 6/9/2026 7:01 AM US/Central.
Valid through 6/9/2026 10:30 AM US/Central.
fzus63 kmkx 091201 aaa
glflm
expires:202606091530;;442072
open lake forecast for lake michigan...updated
national weather service milwaukee/sullivan wi
701 am cdt tue jun 9 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...
only updated marine dense fog advisory headline area.
light and variable winds will increase and become northerly by
this evening as low pressure of 29.9 inches crosses the center
part of lake michigan. dense fog is expected at times through
tonight due to a warm and humid airmass over the relatively cool
waters. a marine dense fog advisory is in effect for central
portions of the lake at this time. an advisory that covers more of
the lake may be needed tonight. there is a chance of showers with
a few rumbles of thunder through tonight as well.
breezy southerly winds are expected wednesday and thursday as
strong low pressure around 29.2 inches tracks from southern
saskatchewan to hudson bay. multiple rounds of showers and storms
are likely during this time, along with a chance for severe
storms. west to southwest winds and dry weather are then expected
friday behind the departing low.
lmz261-362-091530-
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-
701 am cdt tue jun 9 2026
rock island passage to charlevoix mi north...
.today...east winds 10 to 15 kt becoming northeast. patchy fog.
numerous showers and slight chance of thunderstorms this morning,
then chance of showers and slight chance of thunderstorms this
afternoon. waves 1 to 2 ft.
.tonight...northeast winds 10 to 15 kt becoming northwest. slight
chance of showers and thunderstorms in the evening. patchy fog in
the evening, then areas of dense fog overnight. waves 1 to 2 ft.
.wednesday...west winds 5 to 10 kt backing to south late in the
morning, then increasing to 10 to 15 kt early in the afternoon
increasing to 10 to 20 kt late. areas of dense fog in the
morning. waves 1 ft or less building to 2 to 4 ft.
.wednesday night...south winds 15 to 25 kt becoming southwest.
showers with a chance of thunderstorms in the evening, then
chance of showers overnight. waves 4 to 6 ft occasionally to
8 ft.
.thursday...southwest winds 10 to 20 kt. waves 3 to 5 ft
subsiding to 2 to 4 ft.
.thursday night...southwest winds 10 to 20 kt. showers with a
chance of thunderstorms. waves 2 to 4 ft.
.friday...southwest winds 15 to 25 kt increasing to 30 kt. waves
2 to 4 ft.
.saturday...west winds 15 to 25 kt. waves 2 to 4 ft.
$$
(13/21)
Latest Great Lakes Marine Forecast by KMKX
Issued 6/9/2026 7:01 AM US/Central.
Valid through 6/9/2026 10:30 AM US/Central.
fzus63 kmkx 091201 aaa
glflm
expires:202606091530;;442073
open lake forecast for lake michigan...updated
national weather service milwaukee/sullivan wi
701 am cdt tue jun 9 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...
only updated marine dense fog advisory headline area.
light and variable winds will increase and become northerly by
this evening as low pressure of 29.9 inches crosses the center
part of lake michigan. dense fog is expected at times through
tonight due to a warm and humid airmass over the relatively cool
waters. a marine dense fog advisory is in effect for central
portions of the lake at this time. an advisory that covers more of
the lake may be needed tonight. there is a chance of showers with
a few rumbles of thunder through tonight as well.
breezy southerly winds are expected wednesday and thursday as
strong low pressure around 29.2 inches tracks from southern
saskatchewan to hudson bay. multiple rounds of showers and storms
are likely during this time, along with a chance for severe
storms. west to southwest winds and dry weather are then expected
friday behind the departing low.
lmz364-366-563-565-567-868-091530-
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-
701 am cdt tue jun 9 2026
rock island passage to charlevoix mi south to sheboygan wi to
pentwater mi...
...dense fog advisory in effect until noon cdt today...
.today...southeast winds 5 to 10 kt backing to north 10 to 15 kt.
areas of dense fog. numerous showers and slight chance of
thunderstorms this morning, then slight chance of showers and
thunderstorms this afternoon. waves 1 to 2 ft.
.tonight...northeast winds 10 to 15 kt becoming northwest. slight
chance of showers and thunderstorms in the evening. patchy fog in
the evening, then areas of dense fog overnight. waves 1 to 2 ft.
.wednesday...west winds 5 to 10 kt backing to south late in the
morning, then increasing to 10 to 15 kt early in the afternoon
increasing to 10 to 20 kt late. areas of dense fog in the
morning. waves 1 ft or less building to 2 to 4 ft.
.wednesday night...south winds 15 to 25 kt becoming southwest.
showers with a chance of thunderstorms in the evening, then
chance of showers overnight. waves 4 to 6 ft occasionally to
8 ft.
.thursday...southwest winds 10 to 20 kt. waves 3 to 5 ft
subsiding to 2 to 4 ft.
.thursday night...southwest winds 10 to 20 kt. showers with a
chance of thunderstorms. waves 2 to 4 ft.
.friday...southwest winds 15 to 25 kt increasing to 30 kt. waves
2 to 4 ft.
.saturday...west winds 15 to 25 kt. waves 2 to 4 ft.
$$
(14/21)
Latest Great Lakes Marine Forecast by KMKX
Issued 6/9/2026 3:08 AM US/Central.
Valid through 6/9/2026 10:15 AM US/Central.
fzus63 kmkx 090808
glflm
expires:202606091515;;432975
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
308 am cdt tue jun 9 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 and variable winds will increase and become northerly by
this evening as low pressure of 29.9 inches crosses the center
part of lake michigan. dense fog is expected at times through
tonight due to a warm and humid airmass over the relatively cool
waters. a marine dense fog advisory is in effect for central
portions of the lake at this time. an advisory that covers more of
the lake may be needed tonight. there is a chance of showers with
a few rumbles of thunder through tonight as well.
breezy southerly winds are expected wednesday and thursday as
strong low pressure around 29.2 inches tracks from southern
saskatchewan to hudson bay. multiple rounds of showers and storms
are likely during this time, along with a chance for severe
storms. west to southwest winds and dry weather are then expected
friday behind the departing low.
lmz261-362-364-563-091515-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
308 am cdt tue jun 9 2026
sturgeon bay wi to point betsie mi north...
.today...east winds 10 to 15 kt becoming northeast 10 to 20 kt.
patchy fog. showers likely with slight chance of thunderstorms
this morning, then chance of showers and slight chance of
thunderstorms this afternoon. waves 1 to 2 ft.
.tonight...northeast winds 10 to 15 kt becoming northwest. slight
chance of showers and thunderstorms in the evening. patchy fog in
the evening, then areas of dense fog overnight. waves 1 to 2 ft.
.wednesday...west winds 5 to 10 kt backing to south late in the
morning, then increasing to 10 to 15 kt early in the afternoon
increasing to 10 to 20 kt late. areas of dense fog in the
morning. waves 1 ft or less building to 2 to 4 ft.
.wednesday night...south winds 15 to 25 kt becoming southwest.
showers with a chance of thunderstorms in the evening, then
chance of showers overnight. waves 4 to 6 ft occasionally to
8 ft.
.thursday...southwest winds 10 to 20 kt. waves 3 to 5 ft
subsiding to 2 to 4 ft.
.thursday night...southwest winds 10 to 20 kt. showers with a
chance of thunderstorms. waves 2 to 4 ft.
.friday...southwest winds 15 to 25 kt increasing to 30 kt. waves
2 to 4 ft.
.saturday...west winds 15 to 25 kt. waves 2 to 4 ft.
$$
(15/21)
Latest Great Lakes Marine Forecast by KMKX
Issued 6/9/2026 3:08 AM US/Central.
Valid through 6/9/2026 10:15 AM US/Central.
fzus63 kmkx 090808
glflm
expires:202606091515;;432976
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
308 am cdt tue jun 9 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 and variable winds will increase and become northerly by
this evening as low pressure of 29.9 inches crosses the center
part of lake michigan. dense fog is expected at times through
tonight due to a warm and humid airmass over the relatively cool
waters. a marine dense fog advisory is in effect for central
portions of the lake at this time. an advisory that covers more of
the lake may be needed tonight. there is a chance of showers with
a few rumbles of thunder through tonight as well.
breezy southerly winds are expected wednesday and thursday as
strong low pressure around 29.2 inches tracks from southern
saskatchewan to hudson bay. multiple rounds of showers and storms
are likely during this time, along with a chance for severe
storms. west to southwest winds and dry weather are then expected
friday behind the departing low.
lmz366-565-567-669-868-870-091515-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
308 am cdt tue jun 9 2026
sturgeon bay wi to point betsie mi south to port washington wi to
whitehall mi...
...dense fog advisory in effect until noon cdt today...
.today...southeast winds 10 to 15 kt backing to north 5 to 10 kt.
areas of dense fog this morning, then patchy fog this afternoon.
chance of showers and slight chance of thunderstorms this
morning, then slight chance of showers and thunderstorms this
afternoon. waves 1 to 3 ft.
.tonight...north winds 5 to 10 kt backing to west. patchy fog in
the evening, then areas of dense fog overnight. waves 1 to 2 ft.
.wednesday...south winds 5 to 10 kt increasing to 15 to 25 kt.
areas of dense fog in the morning. chance of showers and
thunderstorms in the afternoon. waves 1 to 2 ft building to 3 to
5 ft.
.wednesday night...south winds 15 to 25 kt becoming southwest.
showers with a chance of thunderstorms. waves 4 to 6 ft
occasionally to 8 ft.
.thursday...southwest winds 10 to 20 kt becoming south. waves
3 to 5 ft.
.thursday night...southwest winds 15 to 25 kt becoming west 10 to
20 kt. showers with a chance of thunderstorms. waves 3 to 5 ft.
.friday...west winds 10 to 20 kt becoming southwest. waves 3 to
5 ft.
.saturday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft.
$$
(16/21)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/9/2026 4:01 AM America/New_York.
Valid through 6/9/2026 4:00 PM America/New_York.
fzus63 kmqt 090801
glfls
expires:202606092000;;432214
open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jun 9 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...
weak ridging around 30.0 inches lingers over lake superior this
morning. then, pressure falls to around 29.9 inches over the lake by
this afternoon as 30.2 inch high pressure moves off the mid atlantic
coast and 29.5 inch troughing over the rockies deepens to 29.4
inches over the northern plains. pressure over the lake continues to
deepen to around 29.5 inches through wednesday as the low tracks
northeast along the manitoba/ontario line at 29.3 inches by
wednesday evening. pressure holds to around 29.6 inches over lake
superior through the end of the week as another colorado low lifts
into the upper great lakes at around 29.5 inches late thursday. weak
ridging of 30.0 inches could return to lake superior by the end of
the day saturday.
lsz267-092000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt tue jun 9 2026
.early this morning...southeast winds 10 to 20 knots. patchy fog.
a chance of showers and a slight chance of thunderstorms. waves
calm to 2 feet.
.today...southeast winds 10 to 20 knots backing east in the
afternoon, then becoming northeast 5 to 15 knots late. patchy fog
through early afternoon, then areas of dense fog by mid
afternoon. showers and a slight chance of thunderstorms through
early afternoon, then a chance of showers by mid afternoon. waves
calm to 2 feet.
.tonight...northeast winds 5 to 15 knots backing north late.
areas of dense fog. a chance of showers. waves calm to 2 feet.
.wednesday...west winds 5 to 15 knots backing east in the
afternoon, then becoming southeast 10 to 20 knots late. areas of
dense fog through early afternoon. waves calm to 2 feet.
.wednesday night...southeast winds 10 to 20 knots becoming south
15 to 25 knots after midnight. showers likely and a slight chance
of thunderstorms. waves building to 2 to 4 feet.
.thursday...west winds 5 to 15 knots backing southeast by mid
afternoon. waves subsiding to calm to 2 feet.
.thursday night...southeast winds 10 to 20 knots veering
southwest after midnight. showers likely through midnight, then a
chance of showers after midnight. waves building to 1 to 3 feet.
.friday...west winds 10 to 20 knots. waves building to 3 to
5 feet occasionally to 7 feet.
.saturday...west winds 10 to 20 knots. waves subsiding to 1 to
3 feet.
$$
(17/21)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/9/2026 4:01 AM America/New_York.
Valid through 6/9/2026 4:00 PM America/New_York.
fzus63 kmqt 090801
glfls
expires:202606092000;;432211
open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jun 9 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...
weak ridging around 30.0 inches lingers over lake superior this
morning. then, pressure falls to around 29.9 inches over the lake by
this afternoon as 30.2 inch high pressure moves off the mid atlantic
coast and 29.5 inch troughing over the rockies deepens to 29.4
inches over the northern plains. pressure over the lake continues to
deepen to around 29.5 inches through wednesday as the low tracks
northeast along the manitoba/ontario line at 29.3 inches by
wednesday evening. pressure holds to around 29.6 inches over lake
superior through the end of the week as another colorado low lifts
into the upper great lakes at around 29.5 inches late thursday. weak
ridging of 30.0 inches could return to lake superior by the end of
the day saturday.
lsz264-092000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt tue jun 9 2026
...dense fog advisory in effect until 2 pm edt this afternoon...
.early this morning...southeast winds less than 10 knots. areas
of dense fog. showers likely and a slight chance of
thunderstorms. waves calm to 2 feet.
.today...east winds less than 10 knots increasing to 5 to
15 knots late. a chance of showers through early afternoon. areas
of dense fog through early afternoon, then patchy fog by mid
afternoon. waves calm to 2 feet.
.tonight...east winds 5 to 15 knots. areas of dense fog through
midnight, then widespread dense fog after midnight. waves calm to
2 feet.
.wednesday...southeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. widespread dense fog through early
afternoon. a slight chance of showers and thunderstorms by mid
afternoon. waves building to 2 to 4 feet.
.wednesday night...southeast winds 15 to 25 knots becoming
southwest 10 to 20 knots after midnight. showers and a chance of
thunderstorms through midnight, then a slight chance of showers
after midnight. some thunderstorms may be severe. waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet.
.thursday...southwest winds 10 to 20 knots. a chance of showers
by mid afternoon. waves 2 to 4 feet.
.thursday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of showers. waves
building to 3 to 6 feet occasionally to 8 feet.
.friday...southwest winds 20 to 30 knots becoming west 15 to
25 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet.
.saturday...west winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet.
$$
(18/21)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/9/2026 4:01 AM America/New_York.
Valid through 6/9/2026 4:00 PM America/New_York.
fzus63 kmqt 090801
glfls
expires:202606092000;;432210
open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jun 9 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...
weak ridging around 30.0 inches lingers over lake superior this
morning. then, pressure falls to around 29.9 inches over the lake by
this afternoon as 30.2 inch high pressure moves off the mid atlantic
coast and 29.5 inch troughing over the rockies deepens to 29.4
inches over the northern plains. pressure over the lake continues to
deepen to around 29.5 inches through wednesday as the low tracks
northeast along the manitoba/ontario line at 29.3 inches by
wednesday evening. pressure holds to around 29.6 inches over lake
superior through the end of the week as another colorado low lifts
into the upper great lakes at around 29.5 inches late thursday. weak
ridging of 30.0 inches could return to lake superior by the end of
the day saturday.
lsz263-092000-
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 am edt tue jun 9 2026
...dense fog advisory in effect until 2 pm edt this afternoon...
.early this morning...east winds less than 10 knots. areas of
dense fog. a chance of showers. waves calm to 2 feet.
.today...northeast winds less than 10 knots increasing to 5 to
15 knots in the afternoon. a slight chance of showers through
early afternoon. areas of dense fog through early afternoon, then
patchy fog by mid afternoon. waves calm to 2 feet.
.tonight...east winds 5 to 15 knots. patchy fog through midnight,
then areas of dense fog after midnight. waves calm to 2 feet.
.wednesday...east winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. areas of dense fog through early
afternoon. a chance of showers and thunderstorms. some
thunderstorms may be severe. waves building to 2 to 4 feet.
.wednesday night...south winds 10 to 20 knots veering southwest
after midnight. showers and a chance of thunderstorms through
midnight, then a slight chance of showers after midnight. some
thunderstorms may be severe. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
.thursday...southwest winds 15 to 25 knots. a chance of showers
by mid afternoon. waves building to 3 to 5 feet occasionally to
7 feet.
.thursday night...southwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet.
.friday...southwest winds 20 to 30 knots becoming west 15 to
25 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet.
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet.
$$
(19/21)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/9/2026 4:01 AM America/New_York.
Valid through 6/9/2026 4:00 PM America/New_York.
fzus63 kmqt 090801
glfls
expires:202606092000;;432209
open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jun 9 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...
weak ridging around 30.0 inches lingers over lake superior this
morning. then, pressure falls to around 29.9 inches over the lake by
this afternoon as 30.2 inch high pressure moves off the mid atlantic
coast and 29.5 inch troughing over the rockies deepens to 29.4
inches over the northern plains. pressure over the lake continues to
deepen to around 29.5 inches through wednesday as the low tracks
northeast along the manitoba/ontario line at 29.3 inches by
wednesday evening. pressure holds to around 29.6 inches over lake
superior through the end of the week as another colorado low lifts
into the upper great lakes at around 29.5 inches late thursday. weak
ridging of 30.0 inches could return to lake superior by the end of
the day saturday.
lsz162-092000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt tue jun 9 2026 /300 am cdt tue jun 9 2026/
...dense fog advisory in effect until 2 pm edt /1 pm cdt/ this
afternoon...
.early this morning...northeast winds 5 to 15 knots. widespread
dense fog. waves calm to 2 feet.
.today...northeast winds 5 to 15 knots veering east in the
afternoon, then backing northeast late. areas of dense fog. waves
calm to 2 feet.
.tonight...northeast winds 5 to 15 knots. patchy fog through
midnight, then areas of dense fog after midnight. a slight chance
of showers and thunderstorms after midnight. waves calm to
2 feet.
.wednesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon, then becoming east 10 to 20 knots
late. patchy dense fog through early afternoon. a chance of
showers and thunderstorms. some thunderstorms may be severe.
waves building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.wednesday night...east winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. showers likely and a chance of
thunderstorms through midnight. some thunderstorms may be severe.
waves 1 to 3 feet.
.thursday...southwest winds 15 to 25 knots. a chance of showers
by mid afternoon. waves building to 3 to 5 feet occasionally to
7 feet.
.thursday night...southwest winds 15 to 25 knots veering west
after midnight. waves subsiding to 2 to 4 feet.
.friday...southwest winds 20 to 30 knots becoming west 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 1 to 3 feet.
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet.
$$
(20/21)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/9/2026 4:01 AM America/New_York.
Valid through 6/9/2026 4:00 PM America/New_York.
fzus63 kmqt 090801
glfls
expires:202606092000;;432213
open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jun 9 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...
weak ridging around 30.0 inches lingers over lake superior this
morning. then, pressure falls to around 29.9 inches over the lake by
this afternoon as 30.2 inch high pressure moves off the mid atlantic
coast and 29.5 inch troughing over the rockies deepens to 29.4
inches over the northern plains. pressure over the lake continues to
deepen to around 29.5 inches through wednesday as the low tracks
northeast along the manitoba/ontario line at 29.3 inches by
wednesday evening. pressure holds to around 29.6 inches over lake
superior through the end of the week as another colorado low lifts
into the upper great lakes at around 29.5 inches late thursday. weak
ridging of 30.0 inches could return to lake superior by the end of
the day saturday.
lsz266-092000-
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 am edt tue jun 9 2026
.early this morning...southeast winds 5 to 15 knots. patchy fog.
showers likely and a slight chance of thunderstorms. waves calm
to 2 feet.
.today...east winds 5 to 15 knots backing northeast late. patchy
fog through early afternoon, then areas of dense fog by mid
afternoon. showers likely through early afternoon, then a slight
chance of showers by mid afternoon. waves calm to 2 feet.
.tonight...northeast winds 5 to 15 knots backing north late.
areas of dense fog through midnight, then widespread dense fog
after midnight. waves calm to 2 feet.
.wednesday...southeast winds 5 to 15 knots increasing to 15 to
25 knots. widespread dense fog through early afternoon. waves
building to 3 to 5 feet occasionally to 7 feet.
.wednesday night...southeast winds 15 to 25 knots becoming
southwest 10 to 20 knots after midnight. showers likely through
midnight. a chance of thunderstorms. a chance of showers after
midnight. waves subsiding to 2 to 4 feet.
.thursday...west winds 10 to 20 knots becoming south 5 to
15 knots by mid afternoon. a chance of showers by mid afternoon.
waves subsiding to 1 to 3 feet.
.thursday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of showers. waves
building to 2 to 4 feet.
.friday...west winds 15 to 25 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet.
.saturday...west winds 15 to 25 knots veering northwest. waves
subsiding to 1 to 3 feet.
$$
(21/21)
Latest Great Lakes Marine Forecast by KMQT
Issued 6/9/2026 4:01 AM America/New_York.
Valid through 6/9/2026 4:00 PM America/New_York.
fzus63 kmqt 090801
glfls
expires:202606092000;;432212
open lake forecast for lake superior
national weather service marquette mi
400 am edt tue jun 9 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...
weak ridging around 30.0 inches lingers over lake superior this
morning. then, pressure falls to around 29.9 inches over the lake by
this afternoon as 30.2 inch high pressure moves off the mid atlantic
coast and 29.5 inch troughing over the rockies deepens to 29.4
inches over the northern plains. pressure over the lake continues to
deepen to around 29.5 inches through wednesday as the low tracks
northeast along the manitoba/ontario line at 29.3 inches by
wednesday evening. pressure holds to around 29.6 inches over lake
superior through the end of the week as another colorado low lifts
into the upper great lakes at around 29.5 inches late thursday. weak
ridging of 30.0 inches could return to lake superior by the end of
the day saturday.
lsz265-092000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt tue jun 9 2026
...dense fog advisory in effect until 2 pm edt this afternoon...
.early this morning...east winds 5 to 15 knots. patchy dense fog.
showers likely and a slight chance of thunderstorms. waves calm
to 2 feet.
.today...east winds 5 to 15 knots. showers likely through early
afternoon. areas of dense fog. waves calm to 2 feet.
.tonight...east winds 5 to 15 knots. areas of dense fog through
midnight, then widespread dense fog after midnight. waves calm to
2 feet.
.wednesday...southeast winds 10 to 20 knots increasing to 20 to
30 knots. widespread dense fog through early afternoon. a slight
chance of showers and thunderstorms by mid afternoon. waves
building to 3 to 5 feet occasionally to 7 feet.
.wednesday night...southeast winds 15 to 25 knots becoming
southwest 10 to 20 knots after midnight. showers likely and a
chance of thunderstorms through midnight. waves subsiding to 1 to
3 feet.
.thursday...west winds 10 to 20 knots backing south by mid
afternoon. a chance of showers by mid afternoon. waves subsiding
to calm to 2 feet.
.thursday night...southwest winds 15 to 25 knots veering west
after midnight. a chance of showers. waves building to 2 to
4 feet.
.friday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.
.saturday...west winds 15 to 25 knots. waves subsiding to calm to
2 feet.
$$
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