• CLASSIC IWINDSURF
    Classic myiWindsurfClassic Wind & Weather maps and graphs
Hello Guest
 • 

Classic iWindsurf
kiter? see iKitesurf.com
Grab the iWindsurf Mobile App & Sign On to the New iWindsurf Website
Hi guest · Get your free membership now · Log In ·
WI - MN / IA

Real-Time Data
 > Dynamic Map
 > Wind Obs Map
 > Radar + Satellite Map
 > Wind Obs Summary

Computer Forecasts
 > Model Tables
 > Wind Vector Fx Map
 > Wind FlowViz Fx Map

More Maps

Other Resources
Wind Graphs
Meteograms

Watches/Warnings
>None Active

New iWindsurf: Select your region for wind observations & forecasts:
North America | Europe | South America | Australia & Oceania | Asia | Africa

fzus53 kdlh 300737
nshdlh
expires:202605301600;;882802

nearshore marine forecast
national weather service duluth mn
237 am cdt sat may 30 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.


lsz121-301600-
chequamegon bay-bayfield to oak point wi-
237 am cdt sat may 30 2026

.today...northeast wind 10 to 15 knots with gusts to around
20 knots easing to 10 knots with gusts to around 20 knots late in
the afternoon. partly sunny. waves 1 to 2 feet. 
.tonight...north wind 5 to 10 knots with gusts to around 20 knots
in the evening becoming variable 10 knots or less. partly cloudy.
waves 1 to 2 feet. 
.sunday...variable winds 10 knots or less becoming east 5 to
10 knots in the late morning and afternoon. mostly sunny. waves
1 foot or less. 
.sunday night...northeast wind 5 knots early in the evening
becoming variable 10 knots or less. mostly clear. waves 1 foot or
less. 

$$
fzus53 kdlh 300737
nshdlh
expires:202605301600;;882793

nearshore marine forecast
national weather service duluth mn
237 am cdt sat may 30 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.


lsz140-301600-
grand portage to grand marais mn-
237 am cdt sat may 30 2026

...small craft advisory in effect through this evening...

.today...northeast wind 15 to 20 knots with gusts to around
25 knots. sunny. waves 3 to 5 feet. 
.tonight...northeast wind 15 to 20 knots with gusts to around
25 knots easing to 5 to 10 knots after midnight. partly cloudy.
waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. 
.sunday...northeast wind 5 knots becoming south in the afternoon.
sunny. waves 1 foot or less. 
.sunday night...southwest wind 5 knots becoming northeast after
midnight. partly cloudy. waves 1 foot or less. 

$$
fzus53 kdlh 300737
nshdlh
expires:202605301600;;882794

nearshore marine forecast
national weather service duluth mn
237 am cdt sat may 30 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.


lsz141-301600-
grand marais to taconite harbor mn-
237 am cdt sat may 30 2026

...small craft advisory in effect through this evening...

.today...northeast wind 15 to 20 knots with gusts to around
30 knots. mostly sunny. waves 3 to 5 feet. 
.tonight...northeast wind 15 to 20 knots with gusts to around
30 knots easing to 5 to 10 knots with gusts to around 20 knots
after midnight. mostly cloudy in the evening then becoming partly
cloudy. waves 3 to 5 feet subsiding to 1 to 2 feet early in the
morning. 
.sunday...northeast wind 5 knots early in the morning becoming
east, then becoming southeast early in the afternoon becoming
variable 10 knots or less. mostly sunny. waves 1 to 2 feet. 
.sunday night...variable winds 10 knots or less becoming
northeast 5 knots early in the morning. partly cloudy. waves
1 foot or less. 

$$
fzus53 kdlh 300737
nshdlh
expires:202605301600;;882795

nearshore marine forecast
national weather service duluth mn
237 am cdt sat may 30 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.


lsz142-301600-
taconite harbor to silver bay harbor mn-
237 am cdt sat may 30 2026

...small craft advisory in effect through this evening...

.today...northeast wind 10 to 15 knots with gusts to around
25 knots. mostly sunny. waves 3 to 5 feet. 
.tonight...northeast wind 10 to 15 knots with gusts to around
25 knots easing to 5 knots early in the morning. mostly cloudy in
the evening then becoming partly cloudy. waves 3 to 5 feet
subsiding to 1 to 3 feet early in the morning. 
.sunday...variable winds 10 knots or less. mostly sunny. waves
1 to 2 feet. 
.sunday night...variable winds 10 knots or less. partly cloudy.
waves 1 foot or less. 

$$
fzus53 kdlh 300737
nshdlh
expires:202605301600;;882796

nearshore marine forecast
national weather service duluth mn
237 am cdt sat may 30 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.


lsz143-301600-
silver bay harbor to two harbors mn-
237 am cdt sat may 30 2026

...gale warning in effect through this evening...

.today...northeast wind 15 to 20 knots with gusts to around
30 knots. partly sunny. waves 3 to 5 feet. 
.tonight...northeast wind 15 to 20 knots with gusts to around
30 knots easing to 5 to 10 knots with gusts to around 20 knots
after midnight. mostly cloudy in the evening then becoming partly
cloudy. waves 3 to 5 feet subsiding to 1 to 3 feet early in the
morning. a small craft advisory may be needed. 
.sunday...northeast wind 5 knots. sunny. waves 1 to 2 feet. 
.sunday night...north wind 5 knots until early morning becoming
variable 10 knots or less. partly cloudy. waves 1 foot or less. 

$$
fzus53 kdlh 300737
nshdlh
expires:202605301600;;882797

nearshore marine forecast
national weather service duluth mn
237 am cdt sat may 30 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.


lsz144-301600-
two harbors to duluth mn-
237 am cdt sat may 30 2026

...gale warning in effect through this evening...

.today...northeast wind 20 to 25 knots with gusts to around
30 knots. partly sunny. waves 4 to 6 feet. waves occasionally to
7 feet. 
.tonight...northeast wind 15 to 20 knots with gusts to around
30 knots easing to 5 to 10 knots with gusts to around 20 knots
after midnight. partly cloudy. 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. 
.sunday...east wind 5 to 10 knots. sunny. waves 1 to 2 feet. 
.sunday night...northeast wind 5 to 10 knots. partly cloudy.
waves 1 foot or less. 

$$
fzus53 kdlh 300737
nshdlh
expires:202605301600;;882798

nearshore marine forecast
national weather service duluth mn
237 am cdt sat may 30 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.


lsz145-301600-
duluth mn to port wing wi-
237 am cdt sat may 30 2026

...gale warning in effect through this evening...

.today...northeast wind 15 to 20 knots. gusts up to 25 knots
increasing to 30 knots in the afternoon. partly sunny. waves 4 to
6 feet. waves occasionally to 7 feet. 
.tonight...northeast wind 15 to 20 knots with gusts to around
30 knots easing to 5 knots early in the morning. partly cloudy.
waves 4 to 6 feet subsiding to 1 to 3 feet. waves occasionally to
7 feet. a small craft advisory may be needed. 
.sunday...northeast wind 5 to 10 knots. sunny. waves 1 to 2 feet.
.sunday night...northeast wind 5 to 10 knots. partly cloudy.
waves 1 foot or less. 

$$
fzus53 kdlh 300737
nshdlh
expires:202605301600;;882799

nearshore marine forecast
national weather service duluth mn
237 am cdt sat may 30 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.


lsz146-301600-
port wing to sand island wi-
237 am cdt sat may 30 2026

...small craft advisory in effect through this evening...

.today...northeast wind 15 to 20 knots. gusts up to 20 knots
increasing to 25 knots in the late morning and afternoon. partly
sunny. waves 3 to 5 feet. 
.tonight...northeast wind 10 to 15 knots with gusts to around
25 knots easing to 5 knots early in the morning. partly cloudy.
waves 3 to 5 feet subsiding to 1 to 3 feet early in the morning. 
.sunday...northeast wind 5 to 10 knots. sunny. waves 1 to 2 feet.
.sunday night...northeast wind 5 knots until early morning
becoming variable 10 knots or less. partly cloudy. waves 1 foot
or less. 

$$
fzus53 kdlh 300737
nshdlh
expires:202605301600;;882800

nearshore marine forecast
national weather service duluth mn
237 am cdt sat may 30 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.


lsz147-301600-
sand island to bayfield wi-
237 am cdt sat may 30 2026

...small craft advisory in effect from 7 am cdt this morning
through this evening...

.today...northeast wind 10 to 15 knots. gusts up to 20 knots
increasing to 25 knots in the afternoon. mostly sunny. waves 3 to
5 feet. 
.tonight...northeast wind 10 to 15 knots with gusts to around
25 knots becoming variable 10 knots or less. mostly cloudy in the
evening then becoming partly cloudy. waves 3 to 5 feet subsiding
to 1 to 2 feet early in the morning. 
.sunday...variable winds 10 knots or less becoming northeast
5 knots in the afternoon. sunny. waves 1 to 2 feet. 
.sunday night...variable winds 10 knots or less. partly cloudy.
waves 1 foot or less. 

$$
fzus53 kdlh 300737
nshdlh
expires:202605301600;;882803

nearshore marine forecast
national weather service duluth mn
237 am cdt sat may 30 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.


lsz148-301600-
oak point to saxon harbor wi-
237 am cdt sat may 30 2026

...small craft advisory in effect from 7 am cdt this morning
through this evening...

.today...northeast wind 10 to 15 knots. gusts up to 35 knots.
mostly sunny. waves 4 to 6 feet. waves occasionally to 7 feet. 
.tonight...northeast wind 10 to 15 knots with gales to around
35 knots becoming northwest 5 to 10 knots late in the evening,
then becoming southwest after midnight becoming north early in
the morning. mostly cloudy in the evening then becoming partly
cloudy. waves 4 to 6 feet subsiding to 1 to 2 feet. waves
occasionally to 8 feet. a gale warning may be needed. 
.sunday...southeast wind 5 knots becoming northeast in the late
morning and afternoon. mostly sunny. waves 1 to 2 feet. 
.sunday night...northeast wind 5 knots early in the evening
becoming variable 10 knots or less. mostly clear. waves 1 foot or
less. 

$$
© Copyright 2026 WeatherFlow, Inc · Contact Us ·