fzus53 kdlh 181836
nshdlh
expires:202605182200;;781152

nearshore marine forecast
national weather service duluth mn
136 pm cdt mon may 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-
136 pm cdt mon may 18 2026

.rest of today...northeast wind 5 to 10 knots. mostly cloudy.
waves 1 foot or less. 
.tonight...northeast wind 10 to 15 knots. gusts up to 20 knots in
the late evening and overnight. rain showers likely in the
evening. chance of thunderstorms through the night. rain showers
after midnight. waves 1 to 2 feet. 
.tuesday...northwest wind 5 to 10 knots becoming west 10 to
15 knots with gusts to around 20 knots in the late morning and
afternoon. chance of rain showers in the morning. chance of
sprinkles in the afternoon. waves 1 foot or less. 
.tuesday night...northwest wind 5 to 10 knots. gusts up to
20 knots early in the evening. mostly cloudy in the evening then
becoming partly cloudy. waves 1 foot or less. 

$$

fzus53 kdlh 181836
nshdlh
expires:202605182200;;781143

nearshore marine forecast
national weather service duluth mn
136 pm cdt mon may 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-
136 pm cdt mon may 18 2026

...small craft advisory in effect from 9 pm cdt this evening
through tuesday afternoon...

.rest of today...northeast wind 10 to 15 knots. gusts up to
20 knots early in the afternoon. mostly cloudy. waves 1 to
3 feet. 
.tonight...northeast wind 15 to 20 knots. gusts up to 20 knots
increasing to 25 knots late in the evening, then increasing to
30 knots after midnight decreasing to 25 knots early in the
morning. slight chance of rain showers in the evening. slight
chance of thunderstorms through the night. rain showers after
midnight. waves 1 to 2 feet building to 3 to 5 feet in the late
evening and overnight. 
.tuesday...northwest wind 10 to 15 knots with gusts to around
25 knots easing to 5 to 10 knots with gusts to around 20 knots in
the afternoon. chance of rain showers in the morning. waves 2 to
4 feet subsiding to 1 to 3 feet in the late morning and
afternoon. 
.tuesday night...northwest wind 10 to 15 knots. gusts up to
20 knots early in the evening. mostly cloudy in the evening then
becoming partly cloudy. waves 1 to 2 feet. 

$$

fzus53 kdlh 181836
nshdlh
expires:202605182200;;781144

nearshore marine forecast
national weather service duluth mn
136 pm cdt mon may 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-
136 pm cdt mon may 18 2026

...small craft advisory in effect from 9 pm cdt this evening
through tuesday afternoon...

.rest of today...southwest wind 5 knots becoming northeast late.
mostly cloudy. waves 1 to 3 feet. 
.tonight...northeast wind 10 to 15 knots. gusts up to 25 knots in
the late evening and early morning decreasing to 20 knots. chance
of rain showers in the evening. slight chance of thunderstorms
through the night. rain showers after midnight. waves 1 to 3 feet
building to 2 to 4 feet after midnight. 
.tuesday...northwest wind 5 to 10 knots. gusts up to 20 knots in
the afternoon. chance of rain showers in the morning. chance of
sprinkles in the afternoon. waves 1 to 3 feet subsiding to 1 to
2 feet in the late morning and afternoon. 
.tuesday night...northwest wind 5 to 10 knots. gusts up to
20 knots early in the evening. mostly cloudy in the evening then
becoming partly cloudy. waves 1 to 2 feet. 

$$

fzus53 kdlh 181836
nshdlh
expires:202605182200;;781145

nearshore marine forecast
national weather service duluth mn
136 pm cdt mon may 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-
136 pm cdt mon may 18 2026

...small craft advisory in effect from 9 pm cdt this evening
through tuesday afternoon...

.rest of today...east wind 5 knots becoming northeast late.
mostly cloudy. waves 1 to 3 feet. 
.tonight...northeast wind 10 to 15 knots. gusts up to 20 knots
increasing to 25 knots after midnight. chance of rain showers in
the evening. slight chance of thunderstorms through the night.
rain showers after midnight. waves 1 to 2 feet building to 2 to
4 feet after midnight. 
.tuesday...west wind 5 to 10 knots. gusts up to 20 knots in the
afternoon. chance of rain showers in the morning. chance of
sprinkles in the afternoon. waves 2 to 4 feet subsiding to 1 to
3 feet in the afternoon. 
.tuesday night...northwest wind 5 to 10 knots. gusts up to
20 knots early in the evening. mostly cloudy in the evening then
becoming partly cloudy. waves 1 to 2 feet. 

$$

fzus53 kdlh 181836
nshdlh
expires:202605182200;;781146

nearshore marine forecast
national weather service duluth mn
136 pm cdt mon may 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-
136 pm cdt mon may 18 2026

...small craft advisory in effect from 9 pm cdt this evening
through tuesday afternoon...

.rest of today...southwest wind 5 knots becoming northeast late.
mostly cloudy. waves 1 to 3 feet. 
.tonight...northeast wind 10 to 15 knots. gusts up to 20 knots
late in the evening increasing to 25 knots, then decreasing to
20 knots early in the morning. chance of rain showers in the
evening. chance of thunderstorms through the night. rain showers
after midnight. waves 1 to 2 feet building to 2 to 4 feet after
midnight. 
.tuesday...west wind 5 to 10 knots. gusts up to 20 knots in the
afternoon. chance of rain showers in the morning. chance of
sprinkles in the afternoon. waves 2 to 4 feet subsiding to 1 to
3 feet in the afternoon. 
.tuesday night...northwest wind 5 to 10 knots. mostly cloudy in
the evening then clearing. waves 1 to 2 feet. 

$$

fzus53 kdlh 181836
nshdlh
expires:202605182200;;781147

nearshore marine forecast
national weather service duluth mn
136 pm cdt mon may 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-
136 pm cdt mon may 18 2026

...small craft advisory in effect from 11 pm cdt this evening
through tuesday morning...

.rest of today...northwest wind 5 knots becoming northeast late.
mostly cloudy. waves 1 to 2 feet. 
.tonight...northeast wind 10 to 15 knots. gusts up to 20 knots
increasing to 25 knots after midnight, then decreasing to
20 knots early in the morning. rain showers likely in the
evening. chance of thunderstorms through the night. rain showers
after midnight. waves 1 to 2 feet building to 2 to 4 feet after
midnight. 
.tuesday...west wind 10 to 15 knots. gusts up to 20 knots in the
late morning and afternoon. chance of rain showers in the
morning. waves 2 to 4 feet subsiding to 1 to 3 feet in the
afternoon. 
.tuesday night...northwest wind 10 to 15 knots with gusts to
around 20 knots easing to 5 knots after midnight. mostly cloudy
in the evening then clearing. waves 1 to 2 feet. 

$$

fzus53 kdlh 181836
nshdlh
expires:202605182200;;781148

nearshore marine forecast
national weather service duluth mn
136 pm cdt mon may 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-
136 pm cdt mon may 18 2026

...small craft advisory in effect from 11 pm cdt this evening
through tuesday morning...

.rest of today...north wind 5 knots becoming northeast late.
mostly cloudy. waves 1 to 2 feet. 
.tonight...northeast wind 10 to 15 knots. gusts up to 20 knots
late in the evening increasing to 25 knots, then decreasing to
20 knots early in the morning. rain showers likely in the
evening. chance of thunderstorms through the night. rain showers
after midnight. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.tuesday...west wind 10 to 15 knots. gusts up to 20 knots in the
late morning and afternoon. chance of rain showers in the
morning. waves 2 to 4 feet subsiding to 1 to 3 feet in the
afternoon. 
.tuesday night...northwest wind 10 to 15 knots with gusts to
around 20 knots becoming west 5 knots after midnight. mostly
cloudy in the evening then becoming partly cloudy. waves 1 to
2 feet. 

$$

fzus53 kdlh 181836
nshdlh
expires:202605182200;;781149

nearshore marine forecast
national weather service duluth mn
136 pm cdt mon may 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-
136 pm cdt mon may 18 2026

...small craft advisory in effect from 11 pm cdt this evening
through tuesday morning...

.rest of today...north wind 5 knots becoming northeast late.
mostly cloudy. waves 1 to 2 feet. 
.tonight...northeast wind 10 to 15 knots easing to 10 knots early
in the morning. gusts up to 20 knots late in the evening
increasing to 25 knots, then decreasing to 20 knots early in the
morning. rain showers likely in the evening. chance of
thunderstorms through the night. rain showers after midnight.
waves 1 to 2 feet building to 3 to 5 feet after midnight. 
.tuesday...northwest wind 5 to 10 knots becoming west with gusts
to around 20 knots in the late morning and afternoon. chance of
rain showers in the morning. chance of sprinkles in the
afternoon. waves 2 to 4 feet. 
.tuesday night...west wind 5 to 10 knots. mostly cloudy in the
evening then clearing. waves 1 to 2 feet. 

$$

fzus53 kdlh 181836
nshdlh
expires:202605182200;;781150

nearshore marine forecast
national weather service duluth mn
136 pm cdt mon may 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-
136 pm cdt mon may 18 2026

...small craft advisory in effect from 11 pm cdt this evening
through tuesday morning...

.rest of today...northeast wind 5 to 10 knots. mostly cloudy.
waves 1 to 2 feet. 
.tonight...northeast wind 10 to 15 knots. gusts up to 25 knots in
the late evening and early morning decreasing to 20 knots. rain
showers likely in the evening. chance of thunderstorms through
the night. rain showers after midnight. waves 1 to 2 feet
building to 3 to 5 feet after midnight. 
.tuesday...north wind 5 to 10 knots becoming west with gusts to
around 20 knots in the late morning and afternoon. chance of rain
showers in the morning. chance of sprinkles in the afternoon.
waves 2 to 4 feet. 
.tuesday night...northwest wind 5 to 10 knots. mostly cloudy in
the evening then becoming partly cloudy. waves 1 to 3 feet. 

$$

fzus53 kdlh 181836
nshdlh
expires:202605182200;;781153

nearshore marine forecast
national weather service duluth mn
136 pm cdt mon may 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-
136 pm cdt mon may 18 2026

...small craft advisory in effect from 9 pm cdt this evening
through tuesday afternoon...

.rest of today...east wind 5 knots becoming northeast late.
mostly cloudy. waves 1 to 3 feet. 
.tonight...northeast wind 10 to 15 knots. gusts up to 25 knots in
the late evening and early morning decreasing to 20 knots. rain
showers likely in the evening. chance of thunderstorms through
the night. rain showers after midnight. waves 1 to 3 feet
building to 5 to 8 feet. waves occasionally to 10 feet. 
.tuesday...northwest wind 5 to 10 knots becoming west 10 to
15 knots with gusts to around 20 knots in the afternoon. chance
of rain showers in the morning. chance of sprinkles in the
afternoon. waves 2 to 4 feet. 
.tuesday night...northwest wind 5 to 10 knots. gusts up to
20 knots early in the evening. mostly cloudy in the evening then
becoming partly cloudy. waves 1 to 3 feet. 

$$