• 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 080308
nshdlh
expires:202512081100;;196398

nearshore marine forecast
national weather service duluth mn
908 pm cst sun dec 7 2025

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.


lsz148-081100-
oak point to saxon harbor wi-
908 pm cst sun dec 7 2025

...small craft advisory in effect from 9 am cst monday through
late monday night...

.rest of tonight...southwest wind 5 to 10 knots. partly cloudy
late in the evening then becoming mostly cloudy. waves 1 foot or
less. 
.monday...southwest wind 10 to 15 knots. gusts up to 20 knots
increasing to 25 knots in the afternoon. slight chance of snow in
the afternoon. waves 1 to 2 feet. 
.monday night...southwest wind 15 to 20 knots with gusts to
around 25 knots becoming west 10 to 15 knots with gusts to around
20 knots early in the morning. snow in the evening, then chance
of snow after midnight. waves 1 to 2 feet. 
.tuesday...west wind 10 to 15 knots becoming southwest 5 knots
early in the afternoon, then becoming south late in the
afternoon. slight chance of snow in the morning, then snow likely
in the afternoon. waves 1 to 2 feet. 

$$
fzus53 kdlh 080308
nshdlh
expires:202512081100;;196394

nearshore marine forecast
national weather service duluth mn
908 pm cst sun dec 7 2025

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.


lsz146-081100-
port wing to sand island wi-
908 pm cst sun dec 7 2025

...small craft advisory in effect from 9 am cst monday through
late monday night...

.rest of tonight...west wind 5 knots becoming southwest after
midnight. mostly cloudy. waves 1 foot or less. 
.monday...southwest wind 10 to 15 knots. gusts up to 20 knots in
the late morning and afternoon. chance of flurries in the
afternoon. waves 1 to 3 feet. 
.monday night...southwest wind 15 to 20 knots with gusts to
around 25 knots becoming west after midnight. snow in the
evening, then chance of snow after midnight. waves 1 to 3 feet
building to 2 to 4 feet in the late evening and overnight. 
.tuesday...west wind 10 to 15 knots becoming southwest 5 knots
early in the afternoon, then becoming south late in the
afternoon. slight chance of snow in the morning, then snow likely
in the afternoon. waves 1 to 3 feet. 

$$
fzus53 kdlh 080308
nshdlh
expires:202512081100;;196395

nearshore marine forecast
national weather service duluth mn
908 pm cst sun dec 7 2025

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.


lsz147-081100-
sand island to bayfield wi-
908 pm cst sun dec 7 2025

...small craft advisory in effect from 9 am cst monday through
late monday night...

.rest of tonight...southwest wind 5 to 10 knots. mostly cloudy.
waves 1 foot or less. 
.monday...southwest wind 10 to 15 knots. gusts up to 25 knots.
chance of snow in the afternoon. waves 1 to 2 feet. 
.monday night...southwest wind 10 to 15 knots with gusts to
around 25 knots becoming west 15 to 20 knots after midnight. snow
in the evening, then chance of snow after midnight. waves 1 to
3 feet building to 2 to 4 feet after midnight. 
.tuesday...west wind 10 to 15 knots becoming southwest 5 knots
early in the afternoon, then becoming south late in the
afternoon. slight chance of snow in the morning, then snow likely
in the afternoon. waves 1 to 3 feet. 

$$
fzus53 kdlh 080308
nshdlh
expires:202512081100;;196397

nearshore marine forecast
national weather service duluth mn
908 pm cst sun dec 7 2025

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.


lsz121-081100-
chequamegon bay-bayfield to oak point wi-
908 pm cst sun dec 7 2025

...small craft advisory in effect from 9 am cst monday through
late monday night...

.rest of tonight...southwest wind 5 to 10 knots. partly cloudy
late in the evening then becoming mostly cloudy. waves 1 foot or
less. 
.monday...southwest wind 10 to 15 knots. gusts up to 20 knots in
the late morning and afternoon. chance of snow in the afternoon.
waves 1 foot or less. 
.monday night...southwest wind 10 to 15 knots with gusts to
around 25 knots becoming west with gusts to around 20 knots early
in the morning. snow in the evening, then chance of snow after
midnight. waves 1 foot or less. 
.tuesday...west wind 5 to 10 knots becoming south late in the
afternoon. slight chance of snow in the morning, then snow likely
in the afternoon. waves 1 foot or less. 

$$
fzus53 kdlh 080308
nshdlh
expires:202512081100;;196388

nearshore marine forecast
national weather service duluth mn
908 pm cst sun dec 7 2025

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.


lsz140-081100-
grand portage to grand marais mn-
908 pm cst sun dec 7 2025

...small craft advisory in effect from 9 am cst monday through
late monday night...

.rest of tonight...northwest wind 5 to 10 knots becoming west
toward daybreak. chance of flurries toward daybreak. waves 1 foot
or less. 
.monday...southwest wind 10 to 15 knots with gusts to around
20 knots rising to 15 to 20 knots with gusts to around 25 knots
in the afternoon. chance of snow in the morning, then snow likely
in the afternoon. waves 1 to 3 feet building to 3 to 5 feet in
the afternoon. waves occasionally to 7 feet. 
.monday night...southwest wind 15 to 20 knots with gusts to
around 25 knots becoming northwest 10 to 15 knots with gusts to
around 20 knots early in the morning. snow in the evening, then
snow likely after midnight. waves 4 to 6 feet. waves occasionally
to 8 feet. 
.tuesday...northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 knots early in the afternoon, then becoming
north late in the afternoon. slight chance of snow in the
morning, then chance of snow in the afternoon. waves 2 to 4 feet
subsiding to 1 to 2 feet in the late morning and afternoon. 

$$
fzus53 kdlh 080308
nshdlh
expires:202512081100;;196389

nearshore marine forecast
national weather service duluth mn
908 pm cst sun dec 7 2025

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.


lsz141-081100-
grand marais to taconite harbor mn-
908 pm cst sun dec 7 2025

...small craft advisory in effect from 9 am cst monday through
late monday night...

.rest of tonight...northwest wind 5 to 10 knots becoming west
toward daybreak. chance of flurries toward daybreak. waves 1 foot
or less. 
.monday...southwest wind 10 to 15 knots. gusts up to 20 knots in
the late morning and afternoon. chance of snow in the morning,
then snow likely in the afternoon. waves 1 to 2 feet building to
2 to 4 feet in the afternoon. 
.monday night...southwest wind 10 to 15 knots with gusts to
around 20 knots becoming northwest early in the morning. snow in
the evening, then chance of snow after midnight. waves 2 to
4 feet. 
.tuesday...northwest wind 5 to 10 knots becoming west early in
the afternoon, then becoming southeast late in the afternoon.
slight chance of snow in the morning, then chance of snow in the
afternoon. waves 1 to 2 feet. 

$$
fzus53 kdlh 080308
nshdlh
expires:202512081100;;196390

nearshore marine forecast
national weather service duluth mn
908 pm cst sun dec 7 2025

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.


lsz142-081100-
taconite harbor to silver bay harbor mn-
908 pm cst sun dec 7 2025

...small craft advisory in effect from 9 am cst monday through
late monday night...

.rest of tonight...northwest wind 5 to 10 knots becoming
southwest toward daybreak. partly cloudy late in the evening then
becoming mostly cloudy. waves 1 foot or less. 
.monday...southwest wind 10 to 15 knots. gusts up to 20 knots in
the late morning and afternoon. chance of snow in the morning,
then snow likely in the afternoon. waves 1 to 3 feet. 
.monday night...southwest wind 10 to 15 knots with gusts to
around 20 knots becoming northwest 5 to 10 knots early in the
morning. snow in the evening, then chance of snow after midnight.
waves 2 to 4 feet subsiding to 1 to 2 feet early in the morning. 
.tuesday...northwest wind 5 to 10 knots becoming southwest early
in the afternoon, then becoming southeast late in the afternoon.
slight chance of snow in the morning, then chance of snow in the
afternoon. waves 1 to 2 feet. 

$$
fzus53 kdlh 080308
nshdlh
expires:202512081100;;196391

nearshore marine forecast
national weather service duluth mn
908 pm cst sun dec 7 2025

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.


lsz143-081100-
silver bay harbor to two harbors mn-
908 pm cst sun dec 7 2025

...small craft advisory in effect from 9 am cst monday through
late monday night...

.rest of tonight...northwest wind 5 knots becoming west after
midnight. partly cloudy late in the evening then becoming mostly
cloudy. waves 1 foot or less. 
.monday...southwest wind 10 to 15 knots. gusts up to 20 knots in
the late morning and afternoon. slight chance of snow in the
morning, then snow likely in the afternoon. waves 1 to 3 feet. 
.monday night...southwest wind 10 to 15 knots with gusts to
around 25 knots becoming west with gusts to around 20 knots after
midnight. snow in the evening, then chance of snow after
midnight. waves 2 to 4 feet subsiding to 1 to 2 feet early in the
morning. 
.tuesday...west wind 5 to 10 knots becoming southeast late in the
afternoon. snow likely in the afternoon. waves 1 foot or less. 

$$
fzus53 kdlh 080308
nshdlh
expires:202512081100;;196392

nearshore marine forecast
national weather service duluth mn
908 pm cst sun dec 7 2025

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.


lsz144-081100-
two harbors to duluth mn-
908 pm cst sun dec 7 2025

...small craft advisory in effect from 9 am cst monday through
late monday night...

.rest of tonight...west wind 5 knots becoming southwest after
midnight. mostly cloudy. waves 1 foot or less. 
.monday...southwest wind 10 to 15 knots. gusts up to 20 knots in
the late morning and afternoon. chance of flurries in the
morning, then snow likely in the afternoon. waves 1 to 2 feet
building to 1 to 3 feet late in the afternoon. 
.monday night...southwest wind 15 to 20 knots with gusts to
around 25 knots becoming west 10 to 15 knots with gusts to around
20 knots after midnight. snow in the evening, then chance of snow
after midnight. waves 2 to 4 feet subsiding to 1 to 2 feet early
in the morning. 
.tuesday...west wind 5 to 10 knots becoming southeast late in the
afternoon. snow likely in the afternoon. waves 1 foot or less. 

$$
fzus53 kdlh 080308
nshdlh
expires:202512081100;;196393

nearshore marine forecast
national weather service duluth mn
908 pm cst sun dec 7 2025

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.


lsz145-081100-
duluth mn to port wing wi-
908 pm cst sun dec 7 2025

...small craft advisory in effect from 9 am cst monday through
late monday night...

.rest of tonight...southwest wind 5 to 10 knots becoming south
toward daybreak. mostly cloudy. waves 1 foot or less. 
.monday...south wind 10 to 15 knots. gusts up to 20 knots in the
late morning and afternoon. chance of flurries through the day.
waves 1 to 3 feet. 
.monday night...southwest wind 15 to 20 knots with gusts to
around 25 knots becoming west after midnight. snow in the
evening, then chance of snow after midnight. waves 1 to 3 feet
building to 2 to 4 feet in the late evening and overnight. 
.tuesday...west wind 10 to 15 knots easing to 5 knots late in the
morning, then becoming southwest early in the afternoon becoming
southeast late in the afternoon. slight chance of snow in the
morning, then snow likely in the afternoon. waves 1 to 2 feet. 

$$
fzus53 kmqt 072201
nshmqt
expires:202512080900;;184938

nearshore marine forecast
national weather service marquette mi
500 pm est sun dec 7 2025

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.


lsz242-243-080900-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
500 pm est sun dec 7 2025

.late this afternoon...northwest wind 10 to 15 knots. mostly
cloudy. a chance of flurries. waves 2 to 3 feet. 
.tonight...northwest wind 10 to 15 knots backing southwest late.
mostly cloudy. a chance of flurries through late evening, then a
chance of snow showers by midnight. waves subsiding to 1 to
2 feet, then building to 2 to 3 feet. 
.monday...southwest wind 10 to 20 knots. mostly cloudy. a chance
of snow showers through mid morning. waves 2 to 3 feet. 
.monday night...south wind 15 to 20 knots veering southwest after
midnight. snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...west wind 10 to 20 knots. cloudy with a chance of snow
showers. waves subsiding to 1 to 2 feet. 

note: wave height forecasts are for ice free areas.

$$
fzus53 kmqt 072201
nshmqt
expires:202512080900;;184937

nearshore marine forecast
national weather service marquette mi
500 pm est sun dec 7 2025

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.


lsz240-241-080900-
saxon harbor wi to black river mi-
black river to ontonagon mi-
500 pm est sun dec 7 2025 /400 pm cst sun dec 7 2025/

.late this afternoon...west wind 10 to 15 knots. mostly cloudy. a
chance of flurries. waves 2 to 3 feet subsiding to 1 to 2 feet. 
.tonight...west wind 10 to 15 knots backing southwest by
midnight. mostly cloudy. a chance of flurries through late
evening, then a chance of snow showers by midnight. waves 1 to
2 feet. 
.monday...southwest wind 10 to 20 knots. mostly cloudy. a slight
chance of snow showers late. waves building to 2 to 3 feet. 
.monday night...southwest wind 15 to 20 knots veering west 15 to
25 knots after midnight. snow showers. waves building to 3 to
5 feet occasionally to 7 feet. 
.tuesday...west wind 10 to 20 knots backing southwest less than
10 knots in the afternoon. cloudy. a slight chance of snow
showers in the morning, then a chance of snow showers in the
afternoon. waves subsiding to 1 to 2 feet. 

note: wave height forecasts are for ice free areas.

$$
© Copyright 2025 WeatherFlow, Inc · Contact Us ·