• 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 090156
nshdlh
expires:202512091100;;250574

nearshore marine forecast
national weather service duluth mn
756 pm cst mon dec 8 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.


lsz148-091100-
oak point to saxon harbor wi-
756 pm cst mon dec 8 2025

...small craft advisory in effect until 3 am cst tuesday...

.rest of tonight...southwest wind 15 to 20 knots becoming west
10 to 15 knots toward daybreak. chance of snow early in the
evening, then snow late in the evening. chance of snow after
midnight. waves 1 to 2 feet. 
.tuesday...west wind 10 to 15 knots becoming southwest 5 to
10 knots early in the afternoon, then becoming south late in the
afternoon. chance of snow in the afternoon. waves 1 to 2 feet. 
.tuesday night...east wind 10 to 15 knots with gusts to around
20 knots becoming northeast 20 to 25 knots with gusts to around
30 knots after midnight. snow in the evening, then snow likely
after midnight. waves 1 to 3 feet building to 4 to 7 feet. waves
occasionally to 9 feet. a small craft advisory may be needed. 
.wednesday...north wind 20 to 25 knots with gusts to around
30 knots becoming northwest 10 to 15 knots with gusts to around
20 knots in the afternoon. chance of snow. waves 5 to 8 feet
subsiding to 3 to 5 feet late in the afternoon. waves
occasionally to 10 feet. a small craft advisory may be needed. 

$$
fzus53 kdlh 090156
nshdlh
expires:202512091100;;250570

nearshore marine forecast
national weather service duluth mn
756 pm cst mon dec 8 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.


lsz146-091100-
port wing to sand island wi-
756 pm cst mon dec 8 2025

...small craft advisory in effect until 3 am cst tuesday...

.rest of tonight...southwest wind 10 to 15 knots becoming west
toward daybreak. gusts up to 20 knots. snow in the evening, then
snow likely after midnight. chance of flurries toward daybreak.
waves 1 to 3 feet. 
.tuesday...west wind 5 to 10 knots becoming southeast late in the
afternoon. chance of snow in the afternoon. waves 1 to 2 feet. 
.tuesday night...east wind 15 to 20 knots with gusts to around
25 knots becoming northeast 20 to 25 knots with gusts to around
30 knots after midnight. snow in the evening, then snow likely
after midnight. waves 1 foot or less building to 4 to 6 feet in
the late evening and overnight. waves occasionally to 7 feet. a
small craft advisory may be needed. 
.wednesday...north wind 15 to 20 knots with gusts to around
25 knots becoming northwest 5 to 10 knots in the afternoon.
chance of snow. waves 3 to 5 feet subsiding to 1 to 3 feet late
in the afternoon. waves occasionally to 7 feet. a small craft
advisory may be needed. 

$$
fzus53 kdlh 090156
nshdlh
expires:202512091100;;250571

nearshore marine forecast
national weather service duluth mn
756 pm cst mon dec 8 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.


lsz147-091100-
sand island to bayfield wi-
756 pm cst mon dec 8 2025

...small craft advisory in effect until 3 am cst tuesday...

.rest of tonight...southwest wind 10 to 15 knots becoming west
toward daybreak. gusts up to 20 knots. snow in the evening, then
chance of flurries after midnight. waves 1 to 2 feet building to
1 to 3 feet after midnight. 
.tuesday...west wind 5 to 10 knots becoming southeast late in the
afternoon. chance of snow in the afternoon. waves 1 to 2 feet. 
.tuesday night...east wind 10 to 15 knots with gusts to around
25 knots becoming northeast 15 to 20 knots with gusts to around
30 knots after midnight. snow in the evening, then snow likely
after midnight. waves 1 to 2 feet building to 4 to 6 feet after
midnight. waves occasionally to 8 feet. a small craft advisory
may be needed. 
.wednesday...north wind 15 to 20 knots with gusts to around
25 knots becoming northwest 10 to 15 knots with gusts to around
20 knots late in the afternoon. chance of snow. waves 4 to 6 feet
subsiding to 1 to 3 feet late in the afternoon. waves
occasionally to 7 feet. a small craft advisory may be needed. 

$$
fzus53 kdlh 090156
nshdlh
expires:202512091100;;250573

nearshore marine forecast
national weather service duluth mn
756 pm cst mon dec 8 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.


lsz121-091100-
chequamegon bay-bayfield to oak point wi-
756 pm cst mon dec 8 2025

...small craft advisory in effect until 3 am cst tuesday...

.rest of tonight...southwest wind 5 to 10 knots with gusts to
around 20 knots becoming west toward daybreak. snow in the
evening, then snow likely after midnight. waves 1 foot or less. 
.tuesday...west wind 5 to 10 knots becoming southeast late in the
afternoon. chance of snow in the afternoon. waves 1 foot or less.
.tuesday night...east wind 10 to 15 knots with gusts to around
20 knots becoming northeast 15 to 20 knots with gusts to around
30 knots after midnight. snow in the evening, then snow likely
after midnight. waves 1 to 2 feet. 
.wednesday...north wind 15 to 20 knots with gusts to around
30 knots becoming northwest 5 to 10 knots in the afternoon.
chance of snow. waves 1 to 2 feet. 

$$
fzus53 kdlh 090156
nshdlh
expires:202512091100;;250564

nearshore marine forecast
national weather service duluth mn
756 pm cst mon dec 8 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.


lsz140-091100-
grand portage to grand marais mn-
756 pm cst mon dec 8 2025

...small craft advisory in effect until 3 am cst tuesday...
...gale watch in effect from tuesday evening through wednesday
morning...

.rest of tonight...southwest wind 15 to 20 knots with gusts to
around 25 knots becoming northwest 10 to 15 knots toward
daybreak. chance of snow early in the evening, then snow in the
late evening and early morning. chance of snow toward daybreak.
waves 4 to 6 feet. waves occasionally to 7 feet. 
.tuesday...northwest wind 10 to 15 knots becoming northeast 5 to
10 knots late in the afternoon. slight chance of snow in the
afternoon. waves 1 to 3 feet subsiding to 1 to 2 feet in the late
morning and afternoon. 
.tuesday night...northeast wind 20 to 25 knots with gusts to
around 30 knots becoming north with gusts to around 30 knots
early in the morning. chance of snow in the evening, then slight
chance of snow after midnight. waves 1 to 2 feet building to 4 to
6 feet in the late evening and overnight. waves occasionally to
7 feet. a small craft advisory may be needed. 
.wednesday...north wind 20 to 25 knots with gusts to around
30 knots becoming northwest 10 to 15 knots with gusts to around
25 knots late in the afternoon. mostly sunny. waves 3 to 5 feet
subsiding to 1 to 3 feet in the afternoon. waves occasionally to
7 feet. a small craft advisory may be needed. 

$$
fzus53 kdlh 090156
nshdlh
expires:202512091100;;250565

nearshore marine forecast
national weather service duluth mn
756 pm cst mon dec 8 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.


lsz141-091100-
grand marais to taconite harbor mn-
756 pm cst mon dec 8 2025

...small craft advisory in effect until 3 am cst tuesday...
...gale watch in effect from tuesday evening through wednesday
morning...

.rest of tonight...southwest wind 10 to 15 knots with gusts to
around 20 knots becoming northwest 5 to 10 knots toward daybreak.
snow in the evening, then chance of flurries after midnight.
waves 2 to 4 feet subsiding to 1 to 3 feet toward daybreak. 
.tuesday...northwest wind 5 to 10 knots becoming southeast late
in the afternoon. slight chance of snow in the afternoon. waves
1 to 2 feet. 
.tuesday night...northeast wind 15 to 20 knots with gusts to
around 30 knots becoming north with gusts to around 30 knots
early in the morning. chance of snow. waves 1 to 3 feet. 
.wednesday...north wind 10 to 15 knots with gusts to around
25 knots becoming northwest with gusts to around 20 knots early
in the afternoon, then rising to 10 to 15 knots with gusts to
around 20 knots late in the afternoon. slight chance of snow.
waves 1 to 3 feet. 

$$
fzus53 kdlh 090156
nshdlh
expires:202512091100;;250566

nearshore marine forecast
national weather service duluth mn
756 pm cst mon dec 8 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.


lsz142-091100-
taconite harbor to silver bay harbor mn-
756 pm cst mon dec 8 2025

...small craft advisory in effect until 3 am cst tuesday...
...gale watch in effect from tuesday evening through wednesday
morning...

.rest of tonight...southwest wind 10 to 15 knots with gusts to
around 20 knots becoming northwest 5 to 10 knots toward daybreak.
snow in the evening, then chance of snow after midnight. waves
1 to 3 feet. 
.tuesday...northwest wind 5 to 10 knots becoming southwest early
in the afternoon, then becoming southeast late in the afternoon.
chance of snow in the afternoon. waves 1 foot or less. 
.tuesday night...east wind 15 to 20 knots with gusts to around
25 knots becoming northeast with gusts to around 30 knots after
midnight. snow likely in the evening, then chance of snow after
midnight. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.wednesday...north wind 10 to 15 knots with gusts to around
25 knots becoming northwest 5 to 10 knots with gusts to around
20 knots in the afternoon. slight chance of snow. waves 2 to
4 feet subsiding to 1 to 2 feet in the afternoon. 

$$
fzus53 kdlh 090156
nshdlh
expires:202512091100;;250567

nearshore marine forecast
national weather service duluth mn
756 pm cst mon dec 8 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.


lsz143-091100-
silver bay harbor to two harbors mn-
756 pm cst mon dec 8 2025

...small craft advisory in effect until 3 am cst tuesday...

.rest of tonight...southwest wind 10 to 15 knots with gusts to
around 20 knots becoming northwest 5 to 10 knots toward daybreak.
snow in the evening, then chance of snow after midnight. chance
of flurries toward daybreak. waves 1 to 3 feet. 
.tuesday...northwest wind 5 to 10 knots becoming southeast late
in the afternoon. chance of snow in the afternoon. waves 1 foot
or less. 
.tuesday night...east wind 15 to 20 knots with gusts to around
25 knots becoming northeast with gusts to around 30 knots after
midnight. snow in the evening, then chance of snow after
midnight. waves 1 to 2 feet building to 2 to 4 feet in the late
evening and overnight. a small craft advisory may be needed. 
.wednesday...north wind 10 to 15 knots with gusts to around
25 knots becoming northwest 5 to 10 knots with gusts to around
20 knots in the afternoon. chance of snow. waves 2 to 4 feet
subsiding to 1 to 3 feet in the afternoon. 

$$
fzus53 kdlh 090156
nshdlh
expires:202512091100;;250568

nearshore marine forecast
national weather service duluth mn
756 pm cst mon dec 8 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.


lsz144-091100-
two harbors to duluth mn-
756 pm cst mon dec 8 2025

...small craft advisory in effect until 3 am cst tuesday...

.rest of tonight...southwest wind 10 to 15 knots with gusts to
around 20 knots becoming west 5 to 10 knots toward daybreak. snow
in the evening, then chance of snow after midnight. chance of
flurries toward daybreak. waves 1 to 3 feet. 
.tuesday...west wind 5 to 10 knots becoming southeast late in the
afternoon. chance of snow in the afternoon. waves 1 foot or less.
.tuesday night...east wind 15 to 20 knots with gusts to around
25 knots becoming northeast with gusts to around 30 knots after
midnight. snow in the evening, then chance of snow after
midnight. waves 1 to 2 feet building to 3 to 5 feet in the late
evening and overnight. a small craft advisory may be needed. 
.wednesday...north wind 15 to 20 knots with gusts to around
25 knots becoming northwest 5 to 10 knots with gusts to around
20 knots in the afternoon. chance of snow. waves 2 to 4 feet
subsiding to 1 to 3 feet in the afternoon. 

$$
fzus53 kdlh 090156
nshdlh
expires:202512091100;;250569

nearshore marine forecast
national weather service duluth mn
756 pm cst mon dec 8 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.


lsz145-091100-
duluth mn to port wing wi-
756 pm cst mon dec 8 2025

...small craft advisory in effect until 3 am cst tuesday...

.rest of tonight...south wind 10 to 15 knots with gusts to around
20 knots becoming west toward daybreak. snow in the evening, then
slight chance of snow after midnight. chance of flurries toward
daybreak. waves 1 to 2 feet. 
.tuesday...west wind 5 to 10 knots becoming southeast late in the
afternoon. chance of snow in the afternoon. waves 1 to 2 feet. 
.tuesday night...east wind 15 to 20 knots with gusts to around
25 knots becoming northeast 20 to 25 knots with gusts to around
30 knots after midnight. snow in the evening, then snow likely
after midnight. waves 1 to 2 feet building to 4 to 6 feet in the
late evening and overnight. waves occasionally to 7 feet. a small
craft advisory may be needed. 
.wednesday...north wind 15 to 20 knots with gusts to around
25 knots becoming northwest 10 to 15 knots in the afternoon.
chance of snow. waves 3 to 5 feet subsiding to 1 to 2 feet late
in the afternoon. a small craft advisory may be needed. 

$$
fzus53 kmqt 082201
nshmqt
expires:202512090900;;242093

nearshore marine forecast
national weather service marquette mi
500 pm est mon dec 8 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.


lsz242-243-090900-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
500 pm est mon dec 8 2025

.late this afternoon...south wind 15 to 20 knots. cloudy. waves
2 to 3 feet. 
.tonight...south wind 15 to 20 knots veering southwest late.
cloudy. a chance of snow through late evening, then snow likely
by midnight. waves building to 3 to 5 feet occasionally to
7 feet. 
.tuesday...northwest wind 10 to 20 knots backing west less than
10 knots late. cloudy. a chance of snow showers through early
afternoon, then a slight chance of snow showers late. waves
subsiding to 1 to 2 feet. 
.tuesday night...east wind 5 to 15 knots becoming northeast up to
30 knots after midnight. cloudy. a chance of snow showers in the
evening, then snow likely after midnight. waves building to 6 to
9 feet occasionally to 11 feet. 
.wednesday...north wind up to 30 knots backing northwest 15 to
20 knots in the afternoon. mostly cloudy. a chance of snow in the
morning, then a slight chance of snow showers in the afternoon.
waves building to 8 to 11 feet occasionally to 14 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 

note: wave height forecasts are for ice free areas.

$$
fzus53 kmqt 082201
nshmqt
expires:202512090900;;242092

nearshore marine forecast
national weather service marquette mi
500 pm est mon dec 8 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.


lsz240-241-090900-
saxon harbor wi to black river mi-
black river to ontonagon mi-
500 pm est mon dec 8 2025 /400 pm cst mon dec 8 2025/

.late this afternoon...south wind 15 to 20 knots. cloudy. waves
2 to 3 feet. 
.tonight...southwest wind 15 to 20 knots veering west late. a
chance of snow through late evening, then snow by midnight. a
chance of snow late. waves building to 3 to 5 feet occasionally
to 7 feet, then subsiding to 2 to 4 feet. 
.tuesday...west wind 10 to 15 knots backing south less than
10 knots late. cloudy. a slight chance of snow showers through
mid morning, then a chance of snow showers by late morning. waves
subsiding to 1 to 2 feet. 
.tuesday night...east wind 5 to 15 knots becoming northeast 15 to
25 knots after midnight. snow showers likely in the evening, then
snow likely after midnight. waves building to 5 to 8 feet
occasionally to 10 feet. 
.wednesday...north wind 15 to 25 knots backing northwest 15 to
20 knots in the afternoon. mostly cloudy. a chance of snow in the
morning, then a slight chance of snow showers in the afternoon.
waves building to 7 to 10 feet occasionally to 13 feet, then
subsiding to 3 to 5 feet occasionally to 7 feet. 

note: wave height forecasts are for ice free areas.

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