(1/12)
Latest Nearshore Marine Forecast by KDLH
Issued 8/18/2026 5:00 PM US/Central.
Valid through 8/18/2026 11:00 PM US/Central.
fzus53 kdlh 182200
nshdlh
expires:202608190400;;957628
nearshore marine forecast
national weather service duluth mn
500 pm cdt tue aug 18 2026
for waters within five 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.
lsz148-190400-
oak point to saxon harbor wi-
500 pm cdt tue aug 18 2026
.tonight...southwest wind 5 knots becoming west in the late
evening and overnight. mostly clear. waves 1 foot or less.
.wednesday...west wind 5 knots becoming north early in the
afternoon, then becoming east late in the afternoon. sunny. waves
1 foot or less.
.wednesday night...southeast wind 5 knots becoming south in the
late evening and overnight. mostly clear. waves 1 foot or less.
.thursday...south wind 5 knots becoming east in the afternoon.
slight chance of rain showers through the day. chance of
thunderstorms in the afternoon. waves 1 foot or less.
$$
(2/12)
Latest Nearshore Marine Forecast by KDLH
Issued 8/18/2026 5:00 PM US/Central.
Valid through 8/18/2026 11:00 PM US/Central.
fzus53 kdlh 182200
nshdlh
expires:202608190400;;957624
nearshore marine forecast
national weather service duluth mn
500 pm cdt tue aug 18 2026
for waters within five nautical miles of shore on lake superior.
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
lsz146-190400-
port wing to sand island wi-
500 pm cdt tue aug 18 2026
.tonight...west wind 5 knots. mostly clear. waves 1 foot or less.
.wednesday...southwest wind 5 knots. sunny. waves 1 foot or less.
.wednesday night...southwest wind 5 knots early in the evening
becoming variable 10 knots or less. partly cloudy. waves 1 foot
or less.
.thursday...variable winds 10 knots or less becoming east 5 knots
in the afternoon. slight chance of rain showers in the morning,
then rain showers likely and chance of thunderstorms in the
afternoon. waves 1 foot or less.
$$
(3/12)
Latest Nearshore Marine Forecast by KDLH
Issued 8/18/2026 5:00 PM US/Central.
Valid through 8/18/2026 11:00 PM US/Central.
fzus53 kdlh 182200
nshdlh
expires:202608190400;;957625
nearshore marine forecast
national weather service duluth mn
500 pm cdt tue aug 18 2026
for waters within five 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.
lsz147-190400-
sand island to bayfield wi-
500 pm cdt tue aug 18 2026
.tonight...west wind 5 knots. mostly clear. waves 1 foot or less.
.wednesday...west wind 5 knots. sunny. waves 1 foot or less.
.wednesday night...variable winds 10 knots or less. partly
cloudy. waves 1 foot or less.
.thursday...variable winds 10 knots or less becoming east 5 knots
in the late morning and afternoon. slight chance of rain showers
in the morning, then rain showers likely and chance of
thunderstorms in the afternoon. waves 1 foot or less.
$$
(4/12)
Latest Nearshore Marine Forecast by KDLH
Issued 8/18/2026 5:00 PM US/Central.
Valid through 8/18/2026 11:00 PM US/Central.
fzus53 kdlh 182200
nshdlh
expires:202608190400;;957627
nearshore marine forecast
national weather service duluth mn
500 pm cdt tue aug 18 2026
for waters within five nautical miles of shore on lake superior.
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
lsz121-190400-
chequamegon bay-bayfield to oak point wi-
500 pm cdt tue aug 18 2026
.tonight...northwest wind 5 knots. mostly clear. waves 1 foot or
less.
.wednesday...west wind 5 knots becoming north late in the
afternoon. sunny. waves 1 foot or less.
.wednesday night...east wind 5 knots early in the evening
becoming variable 10 knots or less, then becoming southwest
5 knots early in the morning. partly cloudy. waves 1 foot or
less.
.thursday...variable winds 10 knots or less becoming south
5 knots late in the morning, then becoming east in the afternoon.
slight chance of rain showers in the morning, then rain showers
likely and chance of thunderstorms in the afternoon. waves 1 foot
or less.
$$
(5/12)
Latest Nearshore Marine Forecast by KDLH
Issued 8/18/2026 5:00 PM US/Central.
Valid through 8/18/2026 11:00 PM US/Central.
fzus53 kdlh 182200
nshdlh
expires:202608190400;;957618
nearshore marine forecast
national weather service duluth mn
500 pm cdt tue aug 18 2026
for waters within five 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.
lsz140-190400-
grand portage to grand marais mn-
500 pm cdt tue aug 18 2026
...small craft advisory in effect until 7 pm cdt this evening...
.tonight...west wind 10 to 15 knots with gusts to around 20 knots
becoming northwest 5 to 10 knots after midnight. mostly clear.
waves 1 to 3 feet.
.wednesday...northwest wind 5 to 10 knots becoming southwest
10 to 15 knots with gusts to around 20 knots in the late morning
and afternoon. mostly sunny. waves 1 to 2 feet.
.wednesday night...southwest wind 5 to 10 knots becoming
northwest in the late evening and early morning, then becoming
north early in the morning. partly cloudy in the evening then
becoming mostly cloudy. waves 1 to 2 feet.
.thursday...north wind 5 knots becoming southeast in the
afternoon. slight chance of rain showers in the afternoon. waves
1 foot or less.
$$
(6/12)
Latest Nearshore Marine Forecast by KDLH
Issued 8/18/2026 5:00 PM US/Central.
Valid through 8/18/2026 11:00 PM US/Central.
fzus53 kdlh 182200
nshdlh
expires:202608190400;;957619
nearshore marine forecast
national weather service duluth mn
500 pm cdt tue aug 18 2026
for waters within five nautical miles of shore on lake superior.
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
lsz141-190400-
grand marais to taconite harbor mn-
500 pm cdt tue aug 18 2026
.tonight...west wind 5 to 10 knots with gusts to around 20 knots
becoming northwest after midnight. mostly clear. waves 1 foot or
less.
.wednesday...northwest wind 5 knots becoming southwest in the
late morning and afternoon. mostly sunny. waves 1 foot or less.
.wednesday night...southwest wind 5 knots becoming north in the
late evening and early morning, then becoming variable 10 knots
or less early in the morning. partly cloudy. waves 1 foot or
less.
.thursday...variable winds 10 knots or less becoming east 5 knots
in the late morning and afternoon. chance of rain showers in the
afternoon. waves 1 foot or less.
$$
(7/12)
Latest Nearshore Marine Forecast by KDLH
Issued 8/18/2026 5:00 PM US/Central.
Valid through 8/18/2026 11:00 PM US/Central.
fzus53 kdlh 182200
nshdlh
expires:202608190400;;957620
nearshore marine forecast
national weather service duluth mn
500 pm cdt tue aug 18 2026
for waters within five 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.
lsz142-190400-
taconite harbor to silver bay harbor mn-
500 pm cdt tue aug 18 2026
.tonight...northwest wind 5 knots. mostly clear. waves 1 foot or
less.
.wednesday...northwest wind 5 knots becoming southwest in the
late morning and afternoon. mostly sunny. waves 1 foot or less.
.wednesday night...southwest wind 5 knots early in the evening
becoming variable 10 knots or less. partly cloudy. waves 1 foot
or less.
.thursday...variable winds 10 knots or less becoming east 5 knots
in the afternoon. slight chance of rain showers through the day.
slight chance of thunderstorms in the afternoon. waves 1 foot or
less.
$$
(8/12)
Latest Nearshore Marine Forecast by KDLH
Issued 8/18/2026 5:00 PM US/Central.
Valid through 8/18/2026 11:00 PM US/Central.
fzus53 kdlh 182200
nshdlh
expires:202608190400;;957621
nearshore marine forecast
national weather service duluth mn
500 pm cdt tue aug 18 2026
for waters within five nautical miles of shore on lake superior.
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
lsz143-190400-
silver bay harbor to two harbors mn-
500 pm cdt tue aug 18 2026
.tonight...northwest wind 5 knots. mostly clear. waves 1 foot or
less.
.wednesday...northwest wind 5 knots becoming southwest in the
late morning and afternoon. mostly sunny. waves 1 foot or less.
.wednesday night...southwest wind 5 knots early in the evening
becoming variable 10 knots or less. partly cloudy in the evening
then becoming mostly cloudy. waves 1 foot or less.
.thursday...variable winds 10 knots or less becoming east 5 to
10 knots in the afternoon. slight chance of rain showers in the
morning, then rain showers likely and slight chance of
thunderstorms in the afternoon. waves 1 foot or less.
$$
(9/12)
Latest Nearshore Marine Forecast by KDLH
Issued 8/18/2026 5:00 PM US/Central.
Valid through 8/18/2026 11:00 PM US/Central.
fzus53 kdlh 182200
nshdlh
expires:202608190400;;957622
nearshore marine forecast
national weather service duluth mn
500 pm cdt tue aug 18 2026
for waters within five 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.
lsz144-190400-
two harbors to duluth mn-
500 pm cdt tue aug 18 2026
.tonight...northwest wind 5 to 10 knots. mostly clear. waves
1 foot or less.
.wednesday...west wind 5 knots becoming southwest in the late
morning and afternoon. sunny. waves 1 foot or less.
.wednesday night...west wind 5 knots becoming north late in the
evening, then becoming variable 10 knots or less after midnight
becoming northeast 5 knots early in the morning. partly cloudy.
waves 1 foot or less.
.thursday...east wind 5 to 10 knots. chance of rain showers in
the morning, then rain showers likely and chance of thunderstorms
in the afternoon. waves 1 foot or less.
$$
(10/12)
Latest Nearshore Marine Forecast by KDLH
Issued 8/18/2026 5:00 PM US/Central.
Valid through 8/18/2026 11:00 PM US/Central.
fzus53 kdlh 182200
nshdlh
expires:202608190400;;957623
nearshore marine forecast
national weather service duluth mn
500 pm cdt tue aug 18 2026
for waters within five nautical miles of shore on lake superior.
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
lsz145-190400-
duluth mn to port wing wi-
500 pm cdt tue aug 18 2026
.tonight...northwest wind 5 to 10 knots becoming west late in the
night. mostly clear. waves 1 foot or less.
.wednesday...west wind 5 to 10 knots. sunny. waves 1 foot or
less.
.wednesday night...west wind 5 knots becoming south late in the
evening, then becoming variable 10 knots or less after midnight
becoming south 5 knots early in the morning. mostly clear. waves
1 foot or less.
.thursday...south wind 5 knots becoming east in the afternoon.
chance of rain showers in the morning, then rain showers likely
and chance of thunderstorms in the afternoon. waves 1 foot or
less.
$$
(11/12)
Latest Nearshore Marine Forecast by KMQT
Issued 8/18/2026 5:02 PM America/New_York.
Valid through 8/19/2026 4:00 AM America/New_York.
fzus53 kmqt 182102
nshmqt
expires:202608190800;;955263
nearshore marine forecast
national weather service marquette mi
501 pm edt tue aug 18 2026
for waters within five nautical miles of shore
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.
lsz242-243-190800-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
502 pm edt tue aug 18 2026
.late this afternoon...southwest wind 10 to 15 knots with gusts
up to 24 knots. sunny. waves 1 to 2 feet.
.tonight...west wind 10 to 15 knots veering northwest 5 to
15 knots by midnight. gusts up to 23 knots. clear. waves building
to 2 to 3 feet, then subsiding to 1 to 2 feet.
.wednesday...northwest wind less than 10 knots backing southwest
late. sunny. waves 1 to 2 feet.
.wednesday night...south wind less than 10 knots. mostly clear.
waves calm to 1 foot.
.thursday...southwest wind less than 10 knots backing northeast
in the afternoon. partly cloudy. a slight chance of showers in
the afternoon. waves calm to 1 foot.
$$
(12/12)
Latest Nearshore Marine Forecast by KMQT
Issued 8/18/2026 5:02 PM America/New_York.
Valid through 8/19/2026 4:00 AM America/New_York.
fzus53 kmqt 182102
nshmqt
expires:202608190800;;955262
nearshore marine forecast
national weather service marquette mi
501 pm edt tue aug 18 2026
for waters within five nautical miles of shore
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
lsz240-241-190800-
saxon harbor wi to black river mi-
black river to ontonagon mi-
502 pm edt tue aug 18 2026 /402 pm cdt tue aug 18 2026/
.late this afternoon...southwest wind less than 10 knots with
gusts up to 19 knots. sunny. waves calm to 1 foot.
.tonight...west wind less than 10 knots. clear. waves calm to
1 foot.
.wednesday...west wind less than 10 knots backing southwest late.
sunny. waves calm to 1 foot.
.wednesday night...variable wind less than 10 knots. clear in the
evening then becoming partly cloudy. waves calm to 1 foot.
.thursday...variable wind less than 10 knots becoming east less
than 10 knots in the afternoon. partly cloudy. a slight chance of
showers in the morning, then a chance of showers and a slight
chance of thunderstorms in the afternoon. waves calm to 1 foot.
$$
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