• 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 150400
nshdlh
expires:202609151000;;470106

nearshore marine forecast
national weather service duluth mn
1100 pm cdt mon sep 14 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.


lsz148-151000-
oak point to saxon harbor wi-
1100 pm cdt mon sep 14 2026

...small craft advisory in effect until 7 am cdt tuesday...
...gale warning in effect from 7 am cdt tuesday through tuesday
afternoon...

.rest of tonight...south wind 5 to 10 knots becoming southwest
15 to 20 knots with gusts to around 30 knots after midnight.
chance of rain showers late in the evening, then slight chance of
rain showers after midnight. waves 1 to 3 feet. 
.tuesday...southwest wind 20 to 25 knots with gales to around
35 knots becoming west 15 to 20 knots with gusts to around
30 knots late in the afternoon. mostly sunny. waves 1 to 3 feet
building to 2 to 4 feet in the late morning and afternoon. 
.tuesday night...west wind 10 to 15 knots with gusts to around
20 knots easing to 5 knots in the late evening and overnight.
mostly clear. waves 1 to 2 feet. 
.wednesday...northwest wind 5 knots becoming northeast late in
the afternoon. mostly sunny. waves 1 foot or less. 

$$
fzus53 kdlh 150400
nshdlh
expires:202609151000;;470101

nearshore marine forecast
national weather service duluth mn
1100 pm cdt mon sep 14 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.


lsz145-151000-
duluth mn to port wing wi-
1100 pm cdt mon sep 14 2026

...small craft advisory in effect until 7 am cdt tuesday...
...gale warning in effect from 7 am cdt tuesday through tuesday
afternoon...

.rest of tonight...south wind 10 to 15 knots with gusts to around
25 knots becoming southwest 15 to 20 knots with gusts to around
25 knots toward daybreak. chance of rain showers late in the
evening, then slight chance of rain showers after midnight. waves
1 to 3 feet. 
.tuesday...west wind 20 to 25 knots. gusts up to 35 knots
decreasing to 25 knots late in the afternoon. mostly sunny. waves
4 to 7 feet subsiding to 2 to 4 feet late in the afternoon. waves
occasionally to 9 feet. 
.tuesday night...west wind 5 to 10 knots with gusts to around
20 knots becoming northwest early in the morning. mostly clear.
waves 1 to 2 feet. 
.wednesday...north wind 5 knots becoming northeast in the late
morning and afternoon. mostly sunny. waves 1 foot or less. 

$$
fzus53 kdlh 150400
nshdlh
expires:202609151000;;470102

nearshore marine forecast
national weather service duluth mn
1100 pm cdt mon sep 14 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.


lsz146-151000-
port wing to sand island wi-
1100 pm cdt mon sep 14 2026

...small craft advisory in effect until 7 am cdt tuesday...
...gale warning in effect from 7 am cdt tuesday through tuesday
afternoon...

.rest of tonight...south wind 5 to 10 knots becoming southwest
15 to 20 knots with gusts to around 30 knots after midnight.
chance of rain showers late in the evening, then slight chance of
rain showers after midnight. waves 1 to 2 feet building to 1 to
3 feet toward daybreak. 
.tuesday...west wind up to 30 knots easing to 15 to 20 knots late
in the afternoon. gales up to 40 knots decreasing to 30 knots.
mostly sunny. waves 5 to 8 feet subsiding to 3 to 5 feet late in
the afternoon. waves occasionally to 10 feet. 
.tuesday night...west wind 5 to 10 knots with gusts to around
20 knots becoming northwest early in the morning. mostly clear.
waves 1 to 3 feet. 
.wednesday...north wind 5 knots becoming northeast in the late
morning and afternoon. mostly sunny. waves 1 foot or less. 

$$
fzus53 kdlh 150400
nshdlh
expires:202609151000;;470103

nearshore marine forecast
national weather service duluth mn
1100 pm cdt mon sep 14 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.


lsz147-151000-
sand island to bayfield wi-
1100 pm cdt mon sep 14 2026

...small craft advisory in effect until 7 am cdt tuesday...
...gale warning in effect from 7 am cdt tuesday through tuesday
afternoon...

.rest of tonight...southeast wind 5 to 10 knots becoming
southwest 10 to 15 knots with gusts to around 30 knots after
midnight. chance of rain showers late in the evening. waves 1 to
2 feet. 
.tuesday...west wind up to 30 knots easing to 15 to 20 knots late
in the afternoon. gales up to 40 knots decreasing to 30 knots
late in the afternoon. mostly sunny. waves 5 to 8 feet subsiding
to 3 to 5 feet late in the afternoon. waves occasionally to
10 feet. 
.tuesday night...west wind 5 to 10 knots with gusts to around
20 knots becoming northwest early in the morning. mostly clear.
waves 1 to 3 feet. 
.wednesday...north wind 5 knots becoming east late in the
afternoon. mostly sunny. waves 1 foot or less. 

$$
fzus53 kdlh 150400
nshdlh
expires:202609151000;;470105

nearshore marine forecast
national weather service duluth mn
1100 pm cdt mon sep 14 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.


lsz121-151000-
chequamegon bay-bayfield to oak point wi-
1100 pm cdt mon sep 14 2026

...small craft advisory in effect through tuesday afternoon...

.rest of tonight...south wind 10 to 15 knots with gusts to around
25 knots becoming southwest with gusts to around 20 knots toward
daybreak. chance of rain showers late in the evening. waves 1 to
2 feet. 
.tuesday...southwest wind 15 to 20 knots with gales to around
35 knots becoming west with gales to around 35 knots in the
afternoon. mostly sunny. waves 1 to 2 feet. a gale warning may be
needed. 
.tuesday night...west wind 5 to 10 knots. gusts up to 20 knots
early in the evening. mostly clear. waves 1 foot or less. 
.wednesday...northwest wind 5 knots early in the morning becoming
variable 10 knots or less, then becoming northeast 5 to 10 knots
in the afternoon. mostly sunny. waves 1 foot or less. 

$$
fzus53 kdlh 150400
nshdlh
expires:202609151000;;470096

nearshore marine forecast
national weather service duluth mn
1100 pm cdt mon sep 14 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.


lsz140-151000-
grand portage to grand marais mn-
1100 pm cdt mon sep 14 2026

...small craft advisory in effect until 7 am cdt tuesday...
...gale warning in effect from 7 am cdt tuesday through tuesday
afternoon...

.rest of tonight...southeast wind 15 to 20 knots with gusts to
around 25 knots becoming southwest 20 to 25 knots with gusts to
around 30 knots after midnight. rain showers likely late in the
evening, then chance of rain showers after midnight. slight
chance of rain showers toward daybreak. waves 4 to 6 feet. waves
occasionally to 8 feet. 
.tuesday...west wind up to 30 knots. gusts up to 35 knots
increasing to 40 knots late in the morning, then decreasing to
35 knots in the afternoon. partly sunny. waves 7 to 10 feet.
waves occasionally to 12 feet. 
.tuesday night...west wind 10 to 15 knots. gusts up to 25 knots.
partly cloudy. waves 3 to 5 feet subsiding to 1 to 2 feet after
midnight. a small craft advisory may be needed. 
.wednesday...north wind 5 knots becoming northeast late in the
morning, then becoming southeast in the afternoon. mostly sunny.
waves 1 foot or less. 

$$
fzus53 kdlh 150400
nshdlh
expires:202609151000;;470097

nearshore marine forecast
national weather service duluth mn
1100 pm cdt mon sep 14 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.


lsz141-151000-
grand marais to taconite harbor mn-
1100 pm cdt mon sep 14 2026

...small craft advisory in effect until 7 am cdt tuesday...
...gale warning in effect from 7 am cdt tuesday through tuesday
afternoon...

.rest of tonight...southeast wind 10 to 15 knots becoming
southwest 15 to 20 knots with gusts to around 25 knots after
midnight. chance of rain showers late in the evening. waves 2 to
4 feet. 
.tuesday...southwest wind 20 to 25 knots with gales to around
35 knots becoming west 15 to 20 knots with gusts to around
30 knots late in the afternoon. partly sunny. waves 4 to 7 feet
subsiding to 3 to 5 feet late in the afternoon. waves
occasionally to 9 feet. 
.tuesday night...west wind 10 to 15 knots with gusts to around
20 knots becoming northwest 5 knots after midnight. mostly clear.
waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening
and overnight. 
.wednesday...north wind 5 knots becoming southeast in the
afternoon. sunny in the morning then becoming mostly cloudy.
waves 1 foot or less. 

$$
fzus53 kdlh 150400
nshdlh
expires:202609151000;;470098

nearshore marine forecast
national weather service duluth mn
1100 pm cdt mon sep 14 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.


lsz142-151000-
taconite harbor to silver bay harbor mn-
1100 pm cdt mon sep 14 2026

...small craft advisory in effect until 7 am cdt tuesday...
...gale warning in effect from 7 am cdt tuesday through tuesday
afternoon...

.rest of tonight...southeast wind 5 to 10 knots becoming
southwest 10 to 15 knots with gusts to around 25 knots after
midnight. chance of rain showers late in the evening. waves 1 to
3 feet. 
.tuesday...west wind 15 to 20 knots. gusts up to 35 knots
decreasing to 30 knots late in the afternoon. mostly sunny. waves
3 to 5 feet. 
.tuesday night...west wind 5 to 10 knots with gusts to around
20 knots becoming northwest early in the morning. mostly clear.
waves 1 to 2 feet. 
.wednesday...north wind 5 knots early in the morning becoming
variable 10 knots or less, then becoming southeast 5 knots in the
afternoon. sunny in the morning then becoming mostly cloudy.
waves 1 foot or less. 

$$
fzus53 kdlh 150400
nshdlh
expires:202609151000;;470099

nearshore marine forecast
national weather service duluth mn
1100 pm cdt mon sep 14 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.


lsz143-151000-
silver bay harbor to two harbors mn-
1100 pm cdt mon sep 14 2026

...small craft advisory in effect until 7 am cdt tuesday...
...gale warning in effect from 7 am cdt tuesday through tuesday
afternoon...

.rest of tonight...southeast wind 5 to 10 knots becoming
southwest 15 to 20 knots with gusts to around 25 knots after
midnight. chance of rain showers late in the evening, then slight
chance of rain showers after midnight. waves 1 to 3 feet. 
.tuesday...west wind 20 to 25 knots with gales to around 35 knots
easing to 10 to 15 knots with gusts to around 25 knots late in
the afternoon. mostly sunny. waves 4 to 6 feet subsiding to 1 to
3 feet late in the afternoon. waves occasionally to 7 feet. 
.tuesday night...west wind 5 to 10 knots with gusts to around
20 knots becoming northwest early in the morning. mostly clear.
waves 1 foot or less. 
.wednesday...north wind 5 knots becoming east in the late morning
and afternoon. mostly sunny in the morning then becoming mostly
cloudy. waves 1 foot or less. 

$$
fzus53 kdlh 150400
nshdlh
expires:202609151000;;470100

nearshore marine forecast
national weather service duluth mn
1100 pm cdt mon sep 14 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.


lsz144-151000-
two harbors to duluth mn-
1100 pm cdt mon sep 14 2026

...small craft advisory in effect until 7 am cdt tuesday...
...gale warning in effect from 7 am cdt tuesday through tuesday
afternoon...

.rest of tonight...south wind 5 to 10 knots becoming southwest
15 to 20 knots with gusts to around 25 knots after midnight.
chance of rain showers late in the evening, then slight chance of
rain showers after midnight. waves 1 to 3 feet. 
.tuesday...west wind 20 to 25 knots. gusts up to 35 knots
decreasing to 25 knots. mostly sunny. waves 4 to 6 feet subsiding
to 1 to 3 feet late in the afternoon. waves occasionally to
7 feet. 
.tuesday night...west wind 5 to 10 knots with gusts to around
20 knots becoming northwest early in the morning. mostly clear.
waves 1 to 2 feet. 
.wednesday...north wind 5 knots becoming east in the late morning
and afternoon. mostly sunny in the morning then becoming mostly
cloudy. waves 1 foot or less. 

$$
fzus53 kmqt 150301
nshmqt
expires:202609150800;;468038

nearshore marine forecast
national weather service marquette mi
1100 pm edt mon sep 14 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.


lsz241-150800-
black river to ontonagon mi-
1100 pm edt mon sep 14 2026 /1000 pm cdt mon sep 14 2026/

...small craft advisory in effect until 8 am edt /7 am cdt/
tuesday...
...gale warning in effect from 8 am edt /7 am cdt/ tuesday
through tuesday evening...

.rest of tonight...south wind 15 to 20 knots with gusts up to
33 knots. cloudy. a chance of showers by midnight. waves 1 to
2 feet building to 2 to 4 feet. 
.tuesday...southwest wind up to 30 knots veering west 15 to
25 knots late. gale force gusts up to 46 knots. sunny. waves
building to 6 to 9 feet occasionally to 11 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...west wind 5 to 15 knots. gusts up to 26 knots in
the evening. clear. waves subsiding to 1 to 2 feet. 
.wednesday...variable wind less than 10 knots becoming northeast
less than 10 knots in the afternoon. mostly sunny in the morning
then becoming mostly cloudy. waves calm to 1 foot. 

$$
fzus53 kmqt 150301
nshmqt
expires:202609150800;;468039

nearshore marine forecast
national weather service marquette mi
1100 pm edt mon sep 14 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.


lsz242-243-150800-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
1100 pm edt mon sep 14 2026

...small craft advisory in effect until 8 am edt tuesday...
...gale warning in effect from 8 am edt tuesday through tuesday
evening...

.rest of tonight...south wind 15 to 25 knots veering southwest
20 to 25 knots late. gale force gusts up to 34 knots. cloudy. a
chance of showers by midnight. waves 1 to 2 feet building to 3 to
5 feet occasionally to 7 feet. 
.tuesday...southwest wind up to 30 knots veering west by late
morning. storm force gusts up to 50 knots. mostly sunny. waves
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 7 to 10 feet occasionally to 13 feet. 
.tuesday night...west wind 10 to 20 knots with gusts up to
29 knots veering northwest 5 to 15 knots after midnight. clear.
waves subsiding to 1 to 2 feet. 
.wednesday...north wind less than 10 knots veering northeast in
the afternoon. mostly sunny in the morning then becoming mostly
cloudy. waves 1 to 2 feet. 

$$
fzus53 kmqt 150301
nshmqt
expires:202609150800;;468037

nearshore marine forecast
national weather service marquette mi
1100 pm edt mon sep 14 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.


lsz240-150800-
saxon harbor wi to black river mi-
1100 pm edt mon sep 14 2026 /1000 pm cdt mon sep 14 2026/

...small craft advisory in effect until 8 am edt /7 am cdt/
tuesday...
...gale warning in effect from 8 am edt /7 am cdt/ tuesday
through tuesday afternoon...

.rest of tonight...southwest wind 15 to 25 knots with gusts up to
32 knots. cloudy. a chance of showers by midnight. waves 1 to
2 feet building to 2 to 3 feet. 
.tuesday...southwest wind 20 to 25 knots veering west 15 to
25 knots by late morning. gale force gusts up to 41 knots. sunny.
waves building to 3 to 6 feet occasionally to 8 feet, then
subsiding to 2 to 3 feet. 
.tuesday night...west wind 5 to 15 knots in the evening becoming
variable. clear. waves subsiding to 1 to 2 feet. 
.wednesday...variable wind less than 10 knots becoming northeast
less than 10 knots in the afternoon. mostly sunny in the morning
then becoming mostly cloudy. waves calm to 1 foot. 

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