• 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 300418
nshdlh
expires:202608301000;;586760

nearshore marine forecast
national weather service duluth mn
1117 pm cdt sat aug 29 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.


lsz148-301000-
oak point to saxon harbor wi-
1117 pm cdt sat aug 29 2026

...small craft advisory in effect from sunday afternoon through
sunday evening...

.rest of tonight...southeast wind 5 knots becoming east after
midnight. patchy fog. waves 1 foot or less. 
.sunday...northeast wind 10 to 15 knots with gusts to around
25 knots. patchy fog in the morning. slight chance of showers
through the day. waves 1 to 2 feet building to 1 to 3 feet late
in the afternoon. 
.sunday night...east wind 10 to 15 knots with gusts to around
25 knots easing to 5 knots after midnight. chance of showers and
slight chance of thunderstorms through the night. waves 1 to
3 feet. 
.monday...southeast wind 5 knots becoming southwest late in the
morning, then becoming northwest in the afternoon. patchy fog in
the morning. slight chance of thunderstorms in the morning.
slight chance of showers through the day. waves 1 foot or less. 

$$
fzus53 kdlh 300418
nshdlh
expires:202608301000;;586756

nearshore marine forecast
national weather service duluth mn
1117 pm cdt sat aug 29 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.


lsz146-301000-
port wing to sand island wi-
1117 pm cdt sat aug 29 2026

...small craft advisory in effect from 10 am cdt sunday through
late sunday night...

.rest of tonight...northeast wind 5 to 10 knots. patchy fog
through the night. waves 1 foot or less. 
.sunday...northeast wind 10 to 15 knots. gusts up to 20 knots
late in the morning increasing to 30 knots, then decreasing to
25 knots late in the afternoon. slight chance of showers in the
morning. waves 1 to 3 feet. 
.sunday night...northeast wind 10 to 15 knots. gusts up to
25 knots. chance of showers and slight chance of thunderstorms in
the evening, then showers likely and chance of thunderstorms
after midnight. waves 1 to 3 feet. 
.monday...northeast wind 5 knots becoming west late in the
afternoon. patchy fog in the morning. slight chance of
thunderstorms in the morning. slight chance of showers through
the day. waves 1 to 2 feet. 

$$
fzus53 kdlh 300418
nshdlh
expires:202608301000;;586757

nearshore marine forecast
national weather service duluth mn
1117 pm cdt sat aug 29 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.


lsz147-301000-
sand island to bayfield wi-
1117 pm cdt sat aug 29 2026

...small craft advisory in effect from 10 am cdt sunday through
late sunday night...

.rest of tonight...east wind 5 knots. patchy fog. waves 1 foot or
less. 
.sunday...northeast wind 10 to 15 knots. gusts up to 25 knots.
mostly cloudy. waves 1 to 3 feet. 
.sunday night...east wind 10 to 15 knots with gusts to around
25 knots easing to 5 knots early in the morning. chance of
showers in the evening. slight chance of thunderstorms through
the night. showers likely after midnight. waves 1 to 3 feet
subsiding to 1 to 2 feet early in the morning. 
.monday...east wind 5 knots becoming south late in the morning,
then becoming northwest in the afternoon. patchy fog in the
morning. chance of showers and slight chance of thunderstorms in
the morning. waves 1 to 2 feet. 

$$
fzus53 kdlh 300418
nshdlh
expires:202608301000;;586759

nearshore marine forecast
national weather service duluth mn
1117 pm cdt sat aug 29 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.


lsz121-301000-
chequamegon bay-bayfield to oak point wi-
1117 pm cdt sat aug 29 2026

...small craft advisory in effect from sunday afternoon through
sunday evening...

.rest of tonight...variable winds 10 knots or less becoming
northeast 5 knots toward daybreak. patchy fog. waves 1 foot or
less. 
.sunday...northeast wind 10 to 15 knots with gusts to around
20 knots. patchy fog in the morning. slight chance of showers
through the day. waves 1 to 2 feet. 
.sunday night...northeast wind 10 to 15 knots with gusts to
around 20 knots becoming east 5 knots after midnight. chance of
showers in the evening. slight chance of thunderstorms through
the night. showers likely after midnight. patchy fog after
midnight. waves 1 to 2 feet. 
.monday...east wind 5 knots becoming southwest late in the
morning, then becoming northwest in the afternoon. patchy fog in
the morning. slight chance of thunderstorms in the morning.
slight chance of showers through the day. waves 1 foot or less. 

$$
fzus53 kdlh 300418
nshdlh
expires:202608301000;;586750

nearshore marine forecast
national weather service duluth mn
1117 pm cdt sat aug 29 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.


lsz140-301000-
grand portage to grand marais mn-
1117 pm cdt sat aug 29 2026

...small craft advisory in effect from 10 am cdt sunday through
monday morning...

.rest of tonight...northeast wind 5 to 10 knots. patchy fog late
in the evening. waves 1 foot or less. 
.sunday...northeast wind 10 to 15 knots. gusts up to 25 knots.
cloudy. waves 1 to 3 feet. 
.sunday night...northeast wind 15 to 20 knots. gusts up to
30 knots decreasing to 20 knots. slight chance of rain showers in
the evening, then chance of rain showers and slight chance of
thunderstorms after midnight. waves 1 to 3 feet. 
.monday...northeast wind 10 to 15 knots. gusts up to 20 knots in
the morning. rain showers likely and chance of thunderstorms in
the morning, then slight chance of showers and thunderstorms in
the afternoon. waves 1 to 3 feet. 

$$
fzus53 kdlh 300418
nshdlh
expires:202608301000;;586751

nearshore marine forecast
national weather service duluth mn
1117 pm cdt sat aug 29 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.


lsz141-301000-
grand marais to taconite harbor mn-
1117 pm cdt sat aug 29 2026

...small craft advisory in effect from 10 am cdt sunday through
monday morning...

.rest of tonight...northeast wind 5 to 10 knots. patchy fog
through the night. waves 1 foot or less. 
.sunday...northeast wind 10 to 15 knots. gusts up to 30 knots.
cloudy. waves 1 to 3 feet. 
.sunday night...northeast wind 15 to 20 knots. gusts up to
30 knots decreasing to 25 knots early in the morning. chance of
rain showers through the night. chance of thunderstorms after
midnight. waves 2 to 4 feet. 
.monday...northeast wind 5 to 10 knots with gusts to around
20 knots becoming west late in the afternoon. slight chance of
thunderstorms in the morning. chance of rain showers through the
day. waves 1 to 3 feet. 

$$
fzus53 kdlh 300418
nshdlh
expires:202608301000;;586752

nearshore marine forecast
national weather service duluth mn
1117 pm cdt sat aug 29 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.


lsz142-301000-
taconite harbor to silver bay harbor mn-
1117 pm cdt sat aug 29 2026

...small craft advisory in effect from 10 am cdt sunday through
monday morning...

.rest of tonight...northeast wind 5 knots. patchy fog through the
night. waves 1 foot or less. 
.sunday...northeast wind 10 to 15 knots. gusts up to 20 knots
increasing to 30 knots. slight chance of rain showers in the
afternoon. waves 1 to 3 feet. 
.sunday night...northeast wind 10 to 15 knots. gusts up to
30 knots decreasing to 20 knots. chance of rain showers in the
evening, then rain showers likely and chance of thunderstorms
after midnight. waves 2 to 4 feet. 
.monday...northeast wind 5 to 10 knots becoming west late in the
afternoon. patchy fog in the morning. slight chance of
thunderstorms in the morning. chance of rain showers through the
day. waves 1 to 3 feet. 

$$
fzus53 kdlh 300418
nshdlh
expires:202608301000;;586753

nearshore marine forecast
national weather service duluth mn
1117 pm cdt sat aug 29 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.


lsz143-301000-
silver bay harbor to two harbors mn-
1117 pm cdt sat aug 29 2026

...small craft advisory in effect from 10 am cdt sunday through
late sunday night...

.rest of tonight...northeast wind 5 to 10 knots. patchy fog late
in the evening. waves 1 foot or less. 
.sunday...northeast wind 15 to 20 knots. gusts up to 20 knots
increasing to 30 knots. slight chance of rain showers in the
afternoon. waves 1 to 2 feet building to 2 to 4 feet in the
afternoon. 
.sunday night...northeast wind 15 to 20 knots. gusts up to
30 knots decreasing to 20 knots. chance of rain showers and
slight chance of thunderstorms in the evening, then rain showers
likely and chance of thunderstorms after midnight. waves 2 to
4 feet. 
.monday...northeast wind 5 to 10 knots becoming southwest late in
the afternoon. patchy fog in the morning. slight chance of
thunderstorms in the morning. chance of rain showers through the
day. waves 1 to 3 feet subsiding to 1 to 2 feet in the late
morning and afternoon. 

$$
fzus53 kdlh 300418
nshdlh
expires:202608301000;;586754

nearshore marine forecast
national weather service duluth mn
1117 pm cdt sat aug 29 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.


lsz144-301000-
two harbors to duluth mn-
1117 pm cdt sat aug 29 2026

...small craft advisory in effect from 10 am cdt sunday through
late sunday night...

.rest of tonight...northeast wind 5 to 10 knots. patchy fog late
in the evening. waves 1 foot or less. 
.sunday...northeast wind 15 to 20 knots. gusts up to 20 knots
increasing to 30 knots. slight chance of rain showers in the
morning. waves 1 to 3 feet building to 2 to 4 feet in the
afternoon. 
.sunday night...northeast wind 15 to 20 knots. gusts up to
30 knots decreasing to 20 knots. chance of rain showers in the
evening. slight chance of thunderstorms through the night. rain
showers likely after midnight. waves 2 to 4 feet. 
.monday...northeast wind 5 to 10 knots becoming west late in the
afternoon. patchy fog in the morning. slight chance of showers in
the morning. waves 1 to 3 feet. 

$$
fzus53 kdlh 300418
nshdlh
expires:202608301000;;586755

nearshore marine forecast
national weather service duluth mn
1117 pm cdt sat aug 29 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.


lsz145-301000-
duluth mn to port wing wi-
1117 pm cdt sat aug 29 2026

...small craft advisory in effect from 10 am cdt sunday through
late sunday night...

.rest of tonight...northeast wind 5 to 10 knots. patchy fog late
in the evening. waves 1 to 2 feet. 
.sunday...northeast wind 15 to 20 knots. gusts up to 20 knots
increasing to 30 knots. chance of showers in the morning. waves
1 to 3 feet building to 2 to 4 feet in the afternoon. 
.sunday night...northeast wind 15 to 20 knots. gusts up to
25 knots. chance of showers and slight chance of thunderstorms
through the night. waves 2 to 4 feet. 
.monday...northeast wind 5 to 10 knots becoming northwest in the
afternoon. patchy fog in the morning. slight chance of showers in
the morning. waves 1 to 3 feet. 

$$
fzus53 kmqt 300301
nshmqt
expires:202608300800;;583770

nearshore marine forecast
national weather service marquette mi
1100 pm edt sat aug 29 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.


lsz242-243-300800-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
1101 pm edt sat aug 29 2026

.rest of tonight...southeast wind less than 10 knots. mostly
cloudy. patchy fog through the night. waves calm to 1 foot. 
.sunday...east wind less than 10 knots backing northeast 10 to
15 knots by late morning. mostly cloudy. patchy fog through mid
morning. waves building to 1 to 2 feet. 
.sunday night...east wind 10 to 15 knots. partly cloudy with a
chance of showers in the evening, then cloudy with a chance of
showers and a slight chance of thunderstorms after midnight.
waves 1 to 2 feet. 
.monday...southeast wind 10 to 15 knots veering southwest less
than 10 knots in the afternoon. gusts up to 22 knots. mostly
cloudy. a chance of showers and a slight chance of thunderstorms
in the morning, then a slight chance of showers and thunderstorms
in the afternoon. waves 1 to 2 feet. 

$$
fzus53 kmqt 300301
nshmqt
expires:202608300800;;583769

nearshore marine forecast
national weather service marquette mi
1100 pm edt sat aug 29 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.


lsz240-241-300800-
saxon harbor wi to black river mi-
black river to ontonagon mi-
1101 pm edt sat aug 29 2026 /1001 pm cdt sat aug 29 2026/

.rest of tonight...variable wind less than 10 knots. mostly
cloudy. patchy fog. waves calm to 1 foot. 
.sunday...east wind less than 10 knots backing northeast 10 to
15 knots by late morning. gusts up to 25 knots. mostly cloudy. a
slight chance of showers late. waves building to 2 to 3 feet. 
.sunday night...east wind 5 to 15 knots veering southeast less
than 10 knots after midnight. gusts up to 22 knots. mostly
cloudy. a slight chance of showers in the evening, then a chance
of showers and a slight chance of thunderstorms after midnight.
waves subsiding to 1 to 2 feet. 
.monday...southeast wind less than 10 knots veering northwest in
the afternoon. partly cloudy. a chance of showers and a slight
chance of thunderstorms in the morning, then a slight chance of
showers and thunderstorms in the afternoon. waves calm to 1 foot.

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