fzus53 kdlh 201137
nshdlh
expires:202608201600;;047311

nearshore marine forecast
national weather service duluth mn
637 am cdt thu aug 20 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.


lsz148-201600-
oak point to saxon harbor wi-
637 am cdt thu aug 20 2026

.today...southwest wind 5 knots becoming southeast late 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. 
.tonight...east wind 5 knots becoming west after midnight, then
becoming northwest early in the morning. showers likely and
chance of thunderstorms in the evening, then slight chance of
showers and thunderstorms after midnight. waves 1 foot or less. 
.friday...north wind 5 knots. mostly cloudy in the morning then
becoming mostly sunny. waves 1 foot or less. 
.friday night...west wind 5 knots rising to 5 to 10 knots. slight
chance of rain showers after midnight. waves 1 foot or less. 

$$

fzus53 kdlh 201137
nshdlh
expires:202608201600;;047307

nearshore marine forecast
national weather service duluth mn
637 am cdt thu aug 20 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.


lsz146-201600-
port wing to sand island wi-
637 am cdt thu aug 20 2026

.today...south wind 5 knots becoming northeast late in the
afternoon. slight chance of thunderstorms in the morning. rain
showers likely through the day. chance of thunderstorms in the
afternoon. waves 1 foot or less. 
.tonight...northeast wind 5 knots. showers likely and chance of
thunderstorms in the evening. waves 1 foot or less. 
.friday...north wind 5 knots in the morning becoming variable
10 knots or less, then becoming west 5 knots late in the
afternoon. mostly cloudy in the morning then becoming mostly
sunny. waves 1 foot or less. 
.friday night...southwest wind 5 knots becoming west early in the
morning. partly cloudy. waves 1 foot or less. 

$$

fzus53 kdlh 201137
nshdlh
expires:202608201600;;047308

nearshore marine forecast
national weather service duluth mn
637 am cdt thu aug 20 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.


lsz147-201600-
sand island to bayfield wi-
637 am cdt thu aug 20 2026

.today...southwest wind 5 knots becoming southeast in the late
morning and afternoon. chance of showers in the morning, then
showers likely and chance of thunderstorms in the afternoon.
waves 1 foot or less. 
.tonight...east wind 5 knots becoming north after midnight.
showers likely and chance of thunderstorms in the evening. waves
1 foot or less. 
.friday...north wind 5 knots becoming northwest late in the
afternoon. mostly cloudy in the morning then clearing. waves
1 foot or less. 
.friday night...variable winds 10 knots or less becoming west
5 knots in the late evening and overnight. partly cloudy. waves
1 foot or less. 

$$

fzus53 kdlh 201137
nshdlh
expires:202608201600;;047310

nearshore marine forecast
national weather service duluth mn
637 am cdt thu aug 20 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.


lsz121-201600-
chequamegon bay-bayfield to oak point wi-
637 am cdt thu aug 20 2026

.today...southwest wind 5 knots becoming southeast in the late
morning and afternoon. slight chance of rain showers early in the
morning, then chance of rain showers late in the morning. rain
showers likely and chance of thunderstorms in the afternoon.
waves 1 foot or less. 
.tonight...east wind 5 knots becoming southeast late in the
evening, then becoming northwest after midnight becoming north
early in the morning. showers and chance of thunderstorms in the
evening, then slight chance of showers and thunderstorms after
midnight. waves 1 foot or less. 
.friday...north wind 5 knots. mostly cloudy in the morning then
becoming mostly sunny. waves 1 foot or less. 
.friday night...northwest wind 5 knots becoming west in the late
evening and early morning, then rising to 5 to 10 knots early in
the morning. slight chance of rain showers after midnight. waves
1 foot or less. 

$$

fzus53 kdlh 201137
nshdlh
expires:202608201600;;047301

nearshore marine forecast
national weather service duluth mn
637 am cdt thu aug 20 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.


lsz140-201600-
grand portage to grand marais mn-
637 am cdt thu aug 20 2026

.today...east wind 5 knots becoming southeast in the late morning
and early afternoon, then becoming east late in the afternoon.
chance of rain showers in the morning, then rain showers and
slight chance of thunderstorms in the afternoon. waves 1 foot or
less. 
.tonight...northeast wind 5 to 10 knots. chance of rain showers
in the evening. waves 1 foot or less. 
.friday...northeast wind 5 to 10 knots becoming southeast early
in the afternoon, then becoming southwest late in the afternoon.
partly sunny. waves 1 foot or less. 
.friday night...west wind 5 to 10 knots becoming northwest 10 to
15 knots with gusts to around 20 knots early in the morning.
slight chance of rain showers after midnight. waves 1 foot or
less. 

$$

fzus53 kdlh 201137
nshdlh
expires:202608201600;;047302

nearshore marine forecast
national weather service duluth mn
637 am cdt thu aug 20 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.


lsz141-201600-
grand marais to taconite harbor mn-
637 am cdt thu aug 20 2026

.today...northeast wind 5 knots becoming east in the late morning
and afternoon. rain showers likely in the morning, then rain
showers and slight chance of thunderstorms in the afternoon.
waves 1 foot or less. 
.tonight...northeast wind 5 to 10 knots easing to 5 knots early
in the morning. chance of rain showers and slight chance of
thunderstorms in the evening. waves 1 foot or less. 
.friday...north wind 5 knots becoming southwest in the afternoon.
partly sunny. waves 1 foot or less. 
.friday night...west wind 5 knots becoming northwest after
midnight. partly cloudy. waves 1 foot or less. 

$$

fzus53 kdlh 201137
nshdlh
expires:202608201600;;047303

nearshore marine forecast
national weather service duluth mn
637 am cdt thu aug 20 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.


lsz142-201600-
taconite harbor to silver bay harbor mn-
637 am cdt thu aug 20 2026

.today...northeast wind 5 knots becoming southeast in the late
morning and early afternoon, then becoming northeast late in the
afternoon. rain showers in the morning, then rain showers likely
and chance of thunderstorms in the afternoon. waves 1 foot or
less. 
.tonight...northeast wind 5 knots until early morning becoming
variable 10 knots or less. chance of showers and thunderstorms in
the evening. patchy fog after midnight. waves 1 foot or less. 
.friday...variable winds 10 knots or less becoming north 5 knots
late in the morning, then becoming southwest in the afternoon.
patchy fog in the morning. waves 1 foot or less. 
.friday night...west wind 5 knots becoming northwest after
midnight. partly cloudy. waves 1 foot or less. 

$$

fzus53 kdlh 201137
nshdlh
expires:202608201600;;047304

nearshore marine forecast
national weather service duluth mn
637 am cdt thu aug 20 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.


lsz143-201600-
silver bay harbor to two harbors mn-
637 am cdt thu aug 20 2026

.today...northeast wind 5 knots becoming east in the late morning
and early afternoon, then becoming northeast late in the
afternoon. rain showers likely early in the morning, then rain
showers and slight chance of thunderstorms late in the morning.
rain showers likely and chance of thunderstorms in the afternoon.
waves 1 foot or less. 
.tonight...northeast wind 5 knots. chance of showers and
thunderstorms in the evening. patchy fog after midnight. waves
1 foot or less. 
.friday...north wind 5 knots early in the morning becoming
variable 10 knots or less, then becoming south 5 knots in the
afternoon. patchy fog in the morning. waves 1 foot or less. 
.friday night...southwest wind 5 knots becoming northwest in the
late evening and overnight. partly cloudy. waves 1 foot or less. 

$$

fzus53 kdlh 201137
nshdlh
expires:202608201600;;047305

nearshore marine forecast
national weather service duluth mn
637 am cdt thu aug 20 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.


lsz144-201600-
two harbors to duluth mn-
637 am cdt thu aug 20 2026

.today...south wind 5 knots becoming east in the late morning and
afternoon. rain showers likely through the day. slight chance of
thunderstorms late in the morning, then chance of thunderstorms
in the afternoon. waves 1 foot or less. 
.tonight...northeast wind 5 to 10 knots. rain showers likely and
chance of thunderstorms in the evening. waves 1 foot or less. 
.friday...north wind 5 knots becoming northwest in the afternoon.
slight chance of rain showers in the morning. waves 1 foot or
less. 
.friday night...northwest wind 5 to 10 knots. partly cloudy.
waves 1 foot or less. 

$$

fzus53 kdlh 201137
nshdlh
expires:202608201600;;047306

nearshore marine forecast
national weather service duluth mn
637 am cdt thu aug 20 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.


lsz145-201600-
duluth mn to port wing wi-
637 am cdt thu aug 20 2026

.today...south wind 5 to 10 knots becoming northeast late in the
afternoon. slight chance of thunderstorms in the morning. rain
showers likely through the day. chance of thunderstorms in the
afternoon. waves 1 foot or less. 
.tonight...northeast wind 5 to 10 knots. rain showers likely and
chance of thunderstorms in the evening. waves 1 foot or less. 
.friday...north wind 5 knots becoming northwest in the afternoon.
mostly cloudy in the morning then becoming mostly sunny. waves
1 foot or less. 
.friday night...west wind 5 to 10 knots. partly cloudy. waves
1 foot or less. 

$$

fzus53 kmqt 200900
nshmqt
expires:202608202000;;040587

nearshore marine forecast
national weather service marquette mi
500 am edt thu aug 20 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.


lsz242-243-202000-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
500 am edt thu aug 20 2026

.early this morning...south wind less than 10 knots. mostly
cloudy. waves calm to 1 foot. 
.today...southwest wind less than 10 knots backing east late.
gusts up to 18 knots. mostly cloudy. a chance of showers by late
morning. waves calm to 1 foot. 
.tonight...southeast wind less than 10 knots veering south by
midnight. gusts up to 18 knots. mostly cloudy. a chance of
showers and a slight chance of thunderstorms through midnight,
then a slight chance of showers late. waves calm to 1 foot. 
.friday...northwest wind less than 10 knots. mostly cloudy. a
slight chance of showers in the morning. waves calm to 1 foot. 
.friday night...west wind 5 to 15 knots. mostly cloudy in the
evening, then partly cloudy with a slight chance of showers after
midnight. waves calm to 1 foot. 

$$

fzus53 kmqt 200900
nshmqt
expires:202608202000;;040586

nearshore marine forecast
national weather service marquette mi
500 am edt thu aug 20 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.


lsz240-241-202000-
saxon harbor wi to black river mi-
black river to ontonagon mi-
500 am edt thu aug 20 2026 /400 am cdt thu aug 20 2026/

.early this morning...south wind less than 10 knots. mostly
cloudy. waves calm to 1 foot. 
.today...southwest wind less than 10 knots backing southeast by
late morning. mostly cloudy. a chance of showers and a slight
chance of thunderstorms by late morning. waves calm to 1 foot. 
.tonight...southeast wind less than 10 knots veering southwest
late. mostly cloudy. showers likely and a chance of thunderstorms
through late evening, then a chance of showers and a slight
chance of thunderstorms by midnight. waves calm to 1 foot. 
.friday...northwest wind less than 10 knots. mostly cloudy. a
slight chance of showers in the morning. waves calm to 1 foot. 
.friday night...variable wind less than 10 knots becoming west
5 to 15 knots after midnight. partly cloudy. a slight chance of
showers after midnight. waves calm to 1 foot. 

$$