• 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 011317
nshdlh
expires:202609012200;;720427

nearshore marine forecast
national weather service duluth mn
817 am cdt tue sep 1 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.


lsz148-012200-
oak point to saxon harbor wi-
817 am cdt tue sep 1 2026

.rest of today...southwest wind 5 to 10 knots with gusts to
around 20 knots becoming west with gusts to around 20 knots late.
sunny. waves 1 foot or less. 
.tonight...west wind 5 to 10 knots until early morning becoming
variable 10 knots or less. mostly cloudy. waves 1 foot or less. 
.wednesday...variable winds 10 knots or less becoming northeast
5 knots in the afternoon. mostly sunny. waves 1 foot or less. 
.wednesday night...east wind 5 knots early in the evening
becoming variable 10 knots or less, then becoming south 5 knots
early in the morning. partly cloudy. waves 1 foot or less. 

$$
fzus53 kdlh 011317
nshdlh
expires:202609012200;;720423

nearshore marine forecast
national weather service duluth mn
817 am cdt tue sep 1 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.


lsz146-012200-
port wing to sand island wi-
817 am cdt tue sep 1 2026

...small craft advisory in effect from 1 pm this afternoon to
7 pm cdt this evening...

.rest of today...southwest wind 10 to 15 knots. gusts up to
25 knots. sunny. waves 1 to 2 feet. 
.tonight...west wind 5 to 10 knots with gusts to around 20 knots
until early morning becoming variable 10 knots or less. mostly
cloudy. waves 1 to 2 feet. 
.wednesday...variable winds 10 knots or less. mostly sunny. waves
1 foot or less. 
.wednesday night...east wind 5 knots in the evening becoming
variable 10 knots or less, then becoming east 5 knots early in
the morning. partly cloudy. waves 1 foot or less. 

$$
fzus53 kdlh 011317
nshdlh
expires:202609012200;;720424

nearshore marine forecast
national weather service duluth mn
817 am cdt tue sep 1 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.


lsz147-012200-
sand island to bayfield wi-
817 am cdt tue sep 1 2026

...small craft advisory in effect from 1 pm this afternoon to
7 pm cdt this evening...

.rest of today...west wind 5 to 10 knots. gusts up to 25 knots.
sunny. waves 1 to 2 feet. 
.tonight...west wind 5 to 10 knots with gusts to around 20 knots
until early morning becoming variable 10 knots or less. mostly
cloudy. waves 1 to 2 feet. 
.wednesday...variable winds 10 knots or less becoming east
5 knots late in the afternoon. mostly sunny. waves 1 foot or
less. 
.wednesday night...southeast wind 5 knots early in the evening
becoming variable 10 knots or less. mostly clear. waves 1 foot or
less. 

$$
fzus53 kdlh 011317
nshdlh
expires:202609012200;;720426

nearshore marine forecast
national weather service duluth mn
817 am cdt tue sep 1 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.


lsz121-012200-
chequamegon bay-bayfield to oak point wi-
817 am cdt tue sep 1 2026

.rest of today...west wind 5 to 10 knots. gusts up to 20 knots in
the afternoon. sunny. waves 1 foot or less. 
.tonight...west wind 5 to 10 knots until early morning becoming
variable 10 knots or less. mostly cloudy. waves 1 foot or less. 
.wednesday...variable winds 10 knots or less becoming northeast
5 knots in the afternoon. mostly sunny. waves 1 foot or less. 
.wednesday night...east wind 5 knots early in the evening
becoming variable 10 knots or less. partly cloudy. waves 1 foot
or less. 

$$
fzus53 kdlh 011317
nshdlh
expires:202609012200;;720417

nearshore marine forecast
national weather service duluth mn
817 am cdt tue sep 1 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.


lsz140-012200-
grand portage to grand marais mn-
817 am cdt tue sep 1 2026

...dense fog advisory in effect until 10 am cdt this morning...
...small craft advisory in effect until 7 pm cdt this evening...

.rest of today...southwest wind 15 to 20 knots with gusts to
around 25 knots. patchy dense fog early in the morning. waves
1 to 2 feet building to 2 to 4 feet in the afternoon. 
.tonight...west wind 10 to 15 knots. gusts up to 20 knots early
in the evening. partly cloudy in the evening then becoming mostly
cloudy. waves 1 to 3 feet subsiding to 1 to 2 feet in the late
evening and overnight. 
.wednesday...northwest wind 5 knots becoming southwest in the
afternoon. mostly cloudy in the morning then becoming mostly
sunny. waves 1 foot or less. 
.wednesday night...southwest wind 5 to 10 knots becoming north
after midnight. partly cloudy. waves 1 foot or less. 

$$
fzus53 kdlh 011317
nshdlh
expires:202609012200;;720418

nearshore marine forecast
national weather service duluth mn
817 am cdt tue sep 1 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.


lsz141-012200-
grand marais to taconite harbor mn-
817 am cdt tue sep 1 2026

...dense fog advisory in effect until 10 am cdt this morning...
...small craft advisory in effect from 1 pm this afternoon to
7 pm cdt this evening...

.rest of today...southwest wind 10 to 15 knots with gusts to
around 25 knots. patchy dense fog early in the morning. waves
1 to 2 feet. 
.tonight...west wind 5 to 10 knots. partly cloudy in the evening
then becoming mostly cloudy. waves 1 to 2 feet. 
.wednesday...northwest wind 5 knots becoming southwest in the
afternoon. mostly sunny. waves 1 foot or less. 
.wednesday night...west wind 5 knots early in the evening
becoming variable 10 knots or less, then becoming northeast
5 knots early in the morning. partly cloudy. waves 1 foot or
less. 

$$
fzus53 kdlh 011317
nshdlh
expires:202609012200;;720419

nearshore marine forecast
national weather service duluth mn
817 am cdt tue sep 1 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.


lsz142-012200-
taconite harbor to silver bay harbor mn-
817 am cdt tue sep 1 2026

...small craft advisory in effect from 1 pm this afternoon to
7 pm cdt this evening...

.rest of today...southwest wind 5 to 10 knots. gusts up to
20 knots late in the morning increasing to 25 knots, then
decreasing to 20 knots late. sunny. waves 1 to 2 feet. 
.tonight...northwest wind 5 knots until early morning becoming
variable 10 knots or less. mostly cloudy. waves 1 foot or less. 
.wednesday...variable winds 10 knots or less becoming south
5 knots in the afternoon. mostly sunny. waves 1 foot or less. 
.wednesday night...variable winds 10 knots or less becoming north
5 knots early in the morning. partly cloudy. waves 1 foot or
less. 

$$
fzus53 kdlh 011317
nshdlh
expires:202609012200;;720420

nearshore marine forecast
national weather service duluth mn
817 am cdt tue sep 1 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.


lsz143-012200-
silver bay harbor to two harbors mn-
817 am cdt tue sep 1 2026

...small craft advisory in effect from 1 pm this afternoon to
7 pm cdt this evening...

.rest of today...southwest wind 5 to 10 knots. gusts up to
20 knots in the late morning and afternoon. mostly sunny. waves
1 to 2 feet. 
.tonight...west wind 5 to 10 knots until early morning becoming
variable 10 knots or less. mostly cloudy. waves 1 foot or less. 
.wednesday...variable winds 10 knots or less becoming southeast
5 knots early in the afternoon, then becoming variable 10 knots
or less late in the afternoon. mostly sunny. waves 1 foot or
less. 
.wednesday night...northeast wind 5 knots in the evening becoming
variable 10 knots or less, then becoming northeast 5 knots early
in the morning. partly cloudy. waves 1 foot or less. 

$$
fzus53 kdlh 011317
nshdlh
expires:202609012200;;720421

nearshore marine forecast
national weather service duluth mn
817 am cdt tue sep 1 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.


lsz144-012200-
two harbors to duluth mn-
817 am cdt tue sep 1 2026

...small craft advisory in effect from 1 pm this afternoon to
7 pm cdt this evening...

.rest of today...southwest wind 10 to 15 knots. gusts up to
20 knots in the late morning and afternoon. sunny. waves 1 to
2 feet. 
.tonight...northwest wind 5 to 10 knots until early morning
becoming variable 10 knots or less. mostly cloudy. waves 1 foot
or less. 
.wednesday...variable winds 10 knots or less becoming east
5 knots in the afternoon. mostly sunny. waves 1 foot or less. 
.wednesday night...northeast wind 5 knots. partly cloudy. waves
1 foot or less. 

$$
fzus53 kdlh 011317
nshdlh
expires:202609012200;;720422

nearshore marine forecast
national weather service duluth mn
817 am cdt tue sep 1 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.


lsz145-012200-
duluth mn to port wing wi-
817 am cdt tue sep 1 2026

...small craft advisory in effect from 1 pm this afternoon to
7 pm cdt this evening...

.rest of today...southwest wind 5 to 10 knots. gusts up to
20 knots in the late morning and afternoon. sunny. waves 1 to
2 feet. 
.tonight...west wind 5 to 10 knots. mostly cloudy. waves 1 foot
or less. 
.wednesday...variable winds 10 knots or less becoming northeast
5 knots in the afternoon. mostly sunny. waves 1 foot or less. 
.wednesday night...east wind 5 knots. partly cloudy. waves 1 foot
or less. 

$$
fzus53 kmqt 010901
nshmqt
expires:202609012000;;711064

nearshore marine forecast
national weather service marquette mi
500 am edt tue sep 1 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.


lsz242-012000-
ontonagon to upper entrance of portage canal mi-
500 am edt tue sep 1 2026

...small craft advisory in effect from 1 pm edt this afternoon
through this evening...

.early this morning...south wind less than 10 knots. partly
cloudy. areas of dense fog. waves calm to 1 foot. 
.today...southwest wind 10 to 15 knots veering west by late
morning. gusts up to 25 knots. sunny. patchy fog through mid
morning. waves building to 2 to 3 feet. 
.tonight...west wind 5 to 15 knots. gusts up to 23 knots in the
evening. partly cloudy through late evening then becoming mostly
cloudy. waves subsiding to 1 to 2 feet. 
.wednesday...northwest wind less than 10 knots in the morning
becoming variable. partly cloudy. waves calm to 1 foot. 
.wednesday night...variable wind less than 10 knots. mostly
clear. waves calm to 1 foot. 

$$
fzus53 kmqt 010901
nshmqt
expires:202609012000;;711062

nearshore marine forecast
national weather service marquette mi
500 am edt tue sep 1 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.


lsz240-241-012000-
saxon harbor wi to black river mi-
black river to ontonagon mi-
500 am edt tue sep 1 2026 /400 am cdt tue sep 1 2026/

.early this morning...southwest wind less than 10 knots. mostly
clear. patchy fog. waves calm to 1 foot. 
.today...southwest wind less than 10 knots veering west 5 to
15 knots by late morning. mostly sunny. patchy fog through mid
morning. waves calm to 1 foot. 
.tonight...west wind less than 10 knots with gusts up to 21 knots
through midnight becoming variable. mostly cloudy. waves building
to 1 to 2 feet. 
.wednesday...variable wind less than 10 knots. mostly sunny.
waves calm to 1 foot. 
.wednesday night...variable wind less than 10 knots. mostly
clear. waves calm to 1 foot. 

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