fzus53 kdlh 220400
nshdlh
expires:202605221000;;433574

nearshore marine forecast
national weather service duluth mn
1100 pm cdt thu may 21 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.


lsz142-221000-
taconite harbor to silver bay harbor mn-
1100 pm cdt thu may 21 2026

.rest of tonight...northeast wind 5 to 10 knots. mostly cloudy
late in the evening then becoming partly cloudy. waves 1 to
2 feet. 
.friday...northeast wind 15 to 20 knots with gusts to around
25 knots. mostly sunny. waves 1 to 3 feet building to 2 to 4 feet
late in the afternoon. a small craft advisory may be needed. 
.friday night...northeast wind 15 to 20 knots with gusts to
around 25 knots becoming east 5 to 10 knots with gusts to around
20 knots early in the morning. rain showers after midnight. waves
3 to 5 feet. waves occasionally to 7 feet. a small craft advisory
may be needed. 
.saturday...northeast wind 5 to 10 knots. gusts up to 20 knots in
the morning. rain showers. waves 2 to 4 feet subsiding to 1 to
3 feet in the afternoon. 

$$

fzus53 kdlh 220400
nshdlh
expires:202605221000;;433575

nearshore marine forecast
national weather service duluth mn
1100 pm cdt thu may 21 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.


lsz143-221000-
silver bay harbor to two harbors mn-
1100 pm cdt thu may 21 2026

.rest of tonight...northeast wind 5 to 10 knots. mostly cloudy
late in the evening then becoming partly cloudy. waves 1 to
2 feet. 
.friday...northeast wind 15 to 20 knots with gusts to around
25 knots. mostly sunny. waves 1 to 2 feet building to 2 to 4 feet
in the afternoon. a small craft advisory may be needed. 
.friday night...northeast wind 15 to 20 knots with gusts to
around 25 knots easing to 10 to 15 knots with gusts to around
20 knots after midnight. chance of rain showers in the evening,
then rain showers after midnight. waves 3 to 5 feet. waves
occasionally to 7 feet. a small craft advisory may be needed. 
.saturday...northeast wind 10 to 15 knots. gusts up to 20 knots
early in the morning. rain showers likely in the morning, then
chance of rain showers in the afternoon. waves 1 to 3 feet. 

$$

fzus53 kdlh 220400
nshdlh
expires:202605221000;;433576

nearshore marine forecast
national weather service duluth mn
1100 pm cdt thu may 21 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.


lsz144-221000-
two harbors to duluth mn-
1100 pm cdt thu may 21 2026

.rest of tonight...northeast wind 5 to 10 knots. mostly cloudy.
waves 1 to 2 feet. 
.friday...northeast wind 15 to 20 knots with gusts to around
25 knots. mostly sunny. waves 1 to 2 feet building to 3 to 5 feet
in the afternoon. a small craft advisory may be needed. 
.friday night...northeast wind 20 to 25 knots with gusts to
around 30 knots easing to 10 to 15 knots with gusts to around
20 knots after midnight. chance of rain showers in the evening,
then rain showers after midnight. waves 4 to 6 feet. waves
occasionally to 7 feet. a small craft advisory may be needed. 
.saturday...northeast wind 10 to 15 knots. gusts up to 20 knots
in the morning. rain showers likely. waves 1 to 3 feet. 

$$

fzus53 kdlh 220400
nshdlh
expires:202605221000;;433577

nearshore marine forecast
national weather service duluth mn
1100 pm cdt thu may 21 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.


lsz145-221000-
duluth mn to port wing wi-
1100 pm cdt thu may 21 2026

.rest of tonight...northeast wind 10 to 15 knots easing to
5 knots toward daybreak. mostly cloudy. waves 1 to 3 feet. 
.friday...northeast wind 15 to 20 knots with gusts to around
25 knots. mostly sunny. waves 1 to 3 feet building to 3 to 5 feet
in the afternoon. waves occasionally to 7 feet. a small craft
advisory may be needed. 
.friday night...northeast wind 20 to 25 knots with gusts to
around 30 knots easing to 10 to 15 knots with gusts to around
20 knots after midnight. chance of rain showers in the evening,
then rain showers after midnight. waves 4 to 6 feet subsiding to
1 to 3 feet early in the morning. waves occasionally to 7 feet. a
small craft advisory may be needed. 
.saturday...northeast wind 10 to 15 knots. gusts up to 20 knots
in the morning. rain showers in the morning, then rain showers
likely in the afternoon. waves 1 to 3 feet. 

$$

fzus53 kdlh 220400
nshdlh
expires:202605221000;;433578

nearshore marine forecast
national weather service duluth mn
1100 pm cdt thu may 21 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.


lsz146-221000-
port wing to sand island wi-
1100 pm cdt thu may 21 2026

.rest of tonight...northeast wind 5 to 10 knots. mostly cloudy.
waves 1 to 2 feet. 
.friday...northeast wind 15 to 20 knots. mostly sunny. waves 1 to
2 feet building to 2 to 4 feet in the afternoon. a small craft
advisory may be needed. 
.friday night...northeast wind 15 to 20 knots becoming east 5 to
10 knots after midnight. rain showers after midnight. waves 3 to
5 feet. a small craft advisory may be needed. 
.saturday...northeast wind 5 to 10 knots. rain showers likely in
the morning, then slight chance of rain showers in the afternoon.
waves 1 to 2 feet. 

$$