(1/13)
Latest Nearshore Marine Forecast by KDLH
Issued 4/18/2026 12:48 PM US/Central.
Valid through 4/18/2026 5:00 PM US/Central.
fzus53 kdlh 181748
nshdlh
expires:202604182200;;590824
nearshore marine forecast
national weather service duluth mn
1248 pm cdt sat apr 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.
lsz148-182200-
oak point to saxon harbor wi-
1248 pm cdt sat apr 18 2026
...small craft advisory in effect until 10 pm cdt this evening...
.rest of today...west wind 15 to 20 knots. gusts up to 30 knots
decreasing to 25 knots late. partly sunny. waves 2 to 4 feet.
.tonight...northwest wind 15 to 20 knots. gusts up to 25 knots.
partly cloudy in the evening then becoming mostly cloudy. waves
2 to 4 feet subsiding to 1 to 2 feet after midnight.
.sunday...northwest wind 10 to 15 knots. mostly sunny. waves 1 to
2 feet.
.sunday night...northwest wind 5 knots becoming southwest early
in the morning. mostly clear. waves 1 foot or less.
note...wave height forecasts are for ice free areas.
$$
(2/13)
Latest Nearshore Marine Forecast by KDLH
Issued 4/18/2026 12:48 PM US/Central.
Valid through 4/18/2026 5:00 PM US/Central.
fzus53 kdlh 181748
nshdlh
expires:202604182200;;590819
nearshore marine forecast
national weather service duluth mn
1248 pm cdt sat apr 18 2026
for waters within five nautical miles of shore on lake superior.
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
lsz145-182200-
duluth mn to port wing wi-
1248 pm cdt sat apr 18 2026
...small craft advisory in effect through late tonight...
.rest of today...west wind 20 to 25 knots with gusts to around
30 knots. partly sunny. waves 4 to 6 feet. waves occasionally to
7 feet.
.tonight...west wind 20 to 25 knots with gusts to around 30 knots
becoming northwest 10 to 15 knots after midnight. partly cloudy.
waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. waves
occasionally to 7 feet.
.sunday...northwest wind 5 to 10 knots. sunny. waves 1 to 2 feet.
.sunday night...northwest wind 5 to 10 knots becoming south early
in the morning. mostly clear. waves 1 foot or less.
note...wave height forecasts are for ice free areas.
$$
(3/13)
Latest Nearshore Marine Forecast by KDLH
Issued 4/18/2026 12:48 PM US/Central.
Valid through 4/18/2026 5:00 PM US/Central.
fzus53 kdlh 181748
nshdlh
expires:202604182200;;590820
nearshore marine forecast
national weather service duluth mn
1248 pm cdt sat apr 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.
lsz146-182200-
port wing to sand island wi-
1248 pm cdt sat apr 18 2026
...small craft advisory in effect through late tonight...
.rest of today...west wind 20 to 25 knots with gusts to around
30 knots. partly sunny. waves 4 to 6 feet. waves occasionally to
8 feet.
.tonight...west wind 15 to 20 knots with gusts to around 25 knots
becoming northwest 10 to 15 knots with gusts to around 20 knots
in the late evening and overnight. partly cloudy. waves 4 to
6 feet subsiding to 1 to 3 feet. waves occasionally to 8 feet.
.sunday...northwest wind 5 to 10 knots. mostly sunny. waves 1 to
2 feet.
.sunday night...north wind 5 knots becoming south early in the
morning. mostly clear. waves 1 foot or less.
note...wave height forecasts are for ice free areas.
$$
(4/13)
Latest Nearshore Marine Forecast by KDLH
Issued 4/18/2026 12:48 PM US/Central.
Valid through 4/18/2026 5:00 PM US/Central.
fzus53 kdlh 181748
nshdlh
expires:202604182200;;590821
nearshore marine forecast
national weather service duluth mn
1248 pm cdt sat apr 18 2026
for waters within five nautical miles of shore on lake superior.
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
lsz147-182200-
sand island to bayfield wi-
1248 pm cdt sat apr 18 2026
...small craft advisory in effect until 10 pm cdt this evening...
.rest of today...west wind 20 to 25 knots with gusts to around
30 knots. partly sunny. waves 4 to 6 feet. waves occasionally to
8 feet.
.tonight...northwest wind 15 to 20 knots. gusts up to 25 knots
decreasing to 20 knots in the late evening and overnight. partly
cloudy. waves 4 to 6 feet subsiding to 1 to 3 feet. waves
occasionally to 8 feet.
.sunday...northwest wind 5 to 10 knots. mostly sunny. waves 1 to
2 feet.
.sunday night...northwest wind 5 knots becoming west early in the
morning. mostly clear. waves 1 foot or less.
note...wave height forecasts are for ice free areas.
$$
(5/13)
Latest Nearshore Marine Forecast by KDLH
Issued 4/18/2026 12:48 PM US/Central.
Valid through 4/18/2026 5:00 PM US/Central.
fzus53 kdlh 181748
nshdlh
expires:202604182200;;590823
nearshore marine forecast
national weather service duluth mn
1248 pm cdt sat apr 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.
lsz121-182200-
chequamegon bay-bayfield to oak point wi-
1248 pm cdt sat apr 18 2026
...small craft advisory in effect until 10 pm cdt this evening...
.rest of today...west wind 15 to 20 knots with gusts to around
25 knots. partly sunny. waves 1 to 2 feet.
.tonight...west wind 15 to 20 knots with gusts to around 25 knots
becoming northwest 5 to 10 knots after midnight. partly cloudy.
waves 1 to 2 feet.
.sunday...northwest wind 5 to 10 knots. mostly sunny. waves
1 foot or less.
.sunday night...northwest wind 5 knots becoming southwest early
in the morning. mostly clear. waves 1 foot or less.
note...wave height forecasts are for ice free areas.
$$
(6/13)
Latest Nearshore Marine Forecast by KDLH
Issued 4/18/2026 12:48 PM US/Central.
Valid through 4/18/2026 5:00 PM US/Central.
fzus53 kdlh 181748
nshdlh
expires:202604182200;;590814
nearshore marine forecast
national weather service duluth mn
1248 pm cdt sat apr 18 2026
for waters within five nautical miles of shore on lake superior.
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
lsz140-182200-
grand portage to grand marais mn-
1248 pm cdt sat apr 18 2026
...small craft advisory in effect through late tonight...
.rest of today...west wind 20 to 25 knots. gusts up to 35 knots
decreasing to 30 knots late. partly sunny. waves 4 to 6 feet.
waves occasionally to 8 feet.
.tonight...northwest wind 20 to 25 knots. gusts up to 30 knots
decreasing to 25 knots after midnight. mostly cloudy in the
evening then becoming partly cloudy. waves 3 to 5 feet subsiding
to 1 to 3 feet. waves occasionally to 7 feet.
.sunday...northwest wind 15 to 20 knots. gusts up to 25 knots.
mostly sunny. waves 1 to 2 feet.
.sunday night...northwest wind 10 to 15 knots. gusts up to
20 knots early in the evening. mostly clear. waves 1 foot or
less.
note...wave height forecasts are for ice free areas.
$$
(7/13)
Latest Nearshore Marine Forecast by KDLH
Issued 4/18/2026 12:48 PM US/Central.
Valid through 4/18/2026 5:00 PM US/Central.
fzus53 kdlh 181748
nshdlh
expires:202604182200;;590815
nearshore marine forecast
national weather service duluth mn
1248 pm cdt sat apr 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.
lsz141-182200-
grand marais to taconite harbor mn-
1248 pm cdt sat apr 18 2026
...small craft advisory in effect through late tonight...
.rest of today...west wind 20 to 25 knots. gusts up to 35 knots
decreasing to 30 knots late. partly sunny. waves 3 to 5 feet.
.tonight...northwest wind 15 to 20 knots. gusts up to 30 knots
decreasing to 20 knots. mostly cloudy in the evening then
becoming partly cloudy. waves 2 to 4 feet subsiding to 1 to
2 feet after midnight.
.sunday...northwest wind 10 to 15 knots. gusts up to 20 knots in
the morning. mostly sunny. waves 1 foot or less.
.sunday night...northwest wind 5 to 10 knots until early morning
becoming variable 10 knots or less. mostly clear. waves 1 foot or
less.
note...wave height forecasts are for ice free areas.
$$
(8/13)
Latest Nearshore Marine Forecast by KDLH
Issued 4/18/2026 12:48 PM US/Central.
Valid through 4/18/2026 5:00 PM US/Central.
fzus53 kdlh 181748
nshdlh
expires:202604182200;;590816
nearshore marine forecast
national weather service duluth mn
1248 pm cdt sat apr 18 2026
for waters within five nautical miles of shore on lake superior.
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
lsz142-182200-
taconite harbor to silver bay harbor mn-
1248 pm cdt sat apr 18 2026
...small craft advisory in effect through late tonight...
.rest of today...west wind 15 to 20 knots. gusts up to 30 knots
decreasing to 25 knots late. partly sunny. waves 1 to 3 feet.
.tonight...west wind 15 to 20 knots with gusts to around 25 knots
becoming northwest 5 to 10 knots with gusts to around 20 knots
after midnight. mostly cloudy in the evening then becoming partly
cloudy. waves 1 to 3 feet.
.sunday...northwest wind 5 to 10 knots. gusts up to 20 knots in
the morning. sunny. waves 1 foot or less.
.sunday night...northwest wind 5 knots until early morning
becoming variable 10 knots or less. mostly clear. waves 1 foot or
less.
note...wave height forecasts are for ice free areas.
$$
(9/13)
Latest Nearshore Marine Forecast by KDLH
Issued 4/18/2026 12:48 PM US/Central.
Valid through 4/18/2026 5:00 PM US/Central.
fzus53 kdlh 181748
nshdlh
expires:202604182200;;590817
nearshore marine forecast
national weather service duluth mn
1248 pm cdt sat apr 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.
lsz143-182200-
silver bay harbor to two harbors mn-
1248 pm cdt sat apr 18 2026
...small craft advisory in effect until 10 pm cdt this evening...
.rest of today...west wind 15 to 20 knots with gusts to around
25 knots. partly sunny. waves 2 to 4 feet.
.tonight...west wind 15 to 20 knots with gusts to around 25 knots
becoming northwest 5 to 10 knots with gusts to around 20 knots
after midnight. partly cloudy. waves 1 to 3 feet subsiding to
1 to 2 feet in the late evening and overnight.
.sunday...northwest wind 5 to 10 knots. sunny. waves 1 foot or
less.
.sunday night...northwest wind 5 knots until early morning
becoming variable 10 knots or less. mostly clear. waves 1 foot or
less.
note...wave height forecasts are for ice free areas.
$$
(10/13)
Latest Nearshore Marine Forecast by KDLH
Issued 4/18/2026 12:48 PM US/Central.
Valid through 4/18/2026 5:00 PM US/Central.
fzus53 kdlh 181748
nshdlh
expires:202604182200;;590818
nearshore marine forecast
national weather service duluth mn
1248 pm cdt sat apr 18 2026
for waters within five nautical miles of shore on lake superior.
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
lsz144-182200-
two harbors to duluth mn-
1248 pm cdt sat apr 18 2026
...small craft advisory in effect until 10 pm cdt this evening...
.rest of today...west wind 20 to 25 knots with gusts to around
30 knots. partly sunny. waves 2 to 4 feet.
.tonight...west wind 20 to 25 knots with gusts to around 30 knots
becoming northwest 5 to 10 knots after midnight. partly cloudy.
waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening
and overnight.
.sunday...northwest wind 5 to 10 knots. sunny. waves 1 foot or
less.
.sunday night...northwest wind 5 to 10 knots becoming southwest
early in the morning. mostly clear. waves 1 foot or less.
note...wave height forecasts are for ice free areas.
$$
(11/13)
Latest Nearshore Marine Forecast by KMQT
Issued 4/18/2026 11:01 AM America/New_York.
Valid through 4/18/2026 4:00 PM America/New_York.
fzus53 kmqt 181501
nshmqt
expires:202604182000;;584752
nearshore marine forecast
national weather service marquette mi
1100 am edt sat apr 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.
lsz241-182000-
black river to ontonagon mi-
1100 am edt sat apr 18 2026 /1000 am cdt sat apr 18 2026/
...gale warning in effect until 8 pm edt /7 pm cdt/ this
evening...
.rest of today...west wind up to 30 knots. partly cloudy with a
slight chance of snow showers. waves 6 to 9 feet occasionally to
11 feet.
.tonight...northwest wind 20 to 25 knots diminishing to 15 to
20 knots late. partly cloudy. waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.sunday...northwest wind 10 to 20 knots. mostly sunny. waves
subsiding to 2 to 3 feet.
.sunday night...northwest wind 5 to 15 knots becoming less than
10 knots after midnight. clear. waves subsiding to 1 to 2 feet.
$$
(12/13)
Latest Nearshore Marine Forecast by KMQT
Issued 4/18/2026 11:01 AM America/New_York.
Valid through 4/18/2026 4:00 PM America/New_York.
fzus53 kmqt 181501
nshmqt
expires:202604182000;;584753
nearshore marine forecast
national weather service marquette mi
1100 am edt sat apr 18 2026
for waters within five nautical miles of shore
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
lsz242-243-182000-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
1100 am edt sat apr 18 2026
...gale warning in effect until 8 pm edt this evening...
.rest of today...west wind up to 30 knots with gale force gusts
up to 37 knots. partly cloudy with a slight chance of snow
showers. waves 7 to 10 feet occasionally to 13 feet building to
9 to 12 feet occasionally to 15 feet.
.tonight...northwest wind up to 30 knots diminishing to 20 to
25 knots late. mostly cloudy through late evening then becoming
partly cloudy. a chance of sprinkles and snow showers through
late evening, then a chance of snow showers by midnight. waves
subsiding to 4 to 7 feet occasionally to 9 feet.
.sunday...northwest wind 15 to 25 knots. mostly cloudy in the
morning then becoming mostly sunny. waves subsiding to 2 to
3 feet.
.sunday night...northwest wind 5 to 15 knots. clear. waves
subsiding to 1 to 2 feet.
$$
(13/13)
Latest Nearshore Marine Forecast by KMQT
Issued 4/18/2026 11:01 AM America/New_York.
Valid through 4/18/2026 4:00 PM America/New_York.
fzus53 kmqt 181501
nshmqt
expires:202604182000;;584751
nearshore marine forecast
national weather service marquette mi
1100 am edt sat apr 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.
lsz240-182000-
saxon harbor wi to black river mi-
1100 am edt sat apr 18 2026 /1000 am cdt sat apr 18 2026/
...small craft advisory in effect through late tonight...
.rest of today...west wind 20 to 25 knots. partly cloudy with a
slight chance of snow showers. waves 3 to 6 feet occasionally to
8 feet.
.tonight...west wind 20 to 25 knots veering northwest 15 to
20 knots by midnight. partly cloudy. waves subsiding to 2 to
4 feet.
.sunday...northwest wind 10 to 20 knots. partly cloudy in the
morning then clearing. a chance of flurries in the morning. waves
subsiding to 1 to 2 feet.
.sunday night...northwest wind less than 10 knots in the evening
becoming variable. clear. waves 1 to 2 feet.
$$
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