• 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 230400
nshdlh
expires:202605231000;;488830

nearshore marine forecast
national weather service duluth mn
1100 pm cdt fri may 22 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.


lsz148-231000-
oak point to saxon harbor wi-
1100 pm cdt fri may 22 2026

.rest of tonight...east wind 10 to 15 knots. gusts up to 20 knots
late in the evening. chance of rain showers late in the evening,
then slight chance of rain showers toward daybreak. waves 1 to
3 feet. 
.saturday...east wind 5 to 10 knots. gusts up to 20 knots in the
morning. rain showers likely. waves 1 to 2 feet. 
.saturday night...east wind 5 to 10 knots in the evening becoming
variable 10 knots or less. chance of rain showers in the evening.
waves 1 foot or less. 
.sunday...variable winds 10 knots or less becoming southwest
5 knots late in the morning, then becoming northeast early in the
afternoon becoming east late in the afternoon. slight chance of
rain showers in the afternoon. waves 1 foot or less. 

$$
fzus53 kdlh 230400
nshdlh
expires:202605231000;;488826

nearshore marine forecast
national weather service duluth mn
1100 pm cdt fri may 22 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.


lsz146-231000-
port wing to sand island wi-
1100 pm cdt fri may 22 2026

...small craft advisory in effect until 4 am cdt saturday...

.rest of tonight...east wind 10 knots rising to 10 to 15 knots
with gusts to around 25 knots after midnight. chance of rain
showers. waves 2 to 4 feet. 
.saturday...northeast wind 10 to 15 knots. gusts up to 20 knots
in the afternoon. rain showers likely in the morning, then slight
chance of rain showers in the afternoon. waves 1 to 3 feet. 
.saturday night...northeast wind 5 to 10 knots with gusts to
around 20 knots in the evening becoming variable 10 knots or
less. mostly cloudy. waves 1 to 2 feet. 
.sunday...variable winds 10 knots or less becoming southwest
5 knots in the late morning and early afternoon, then becoming
south late in the afternoon. mostly sunny. waves 1 foot or less. 

$$
fzus53 kdlh 230400
nshdlh
expires:202605231000;;488827

nearshore marine forecast
national weather service duluth mn
1100 pm cdt fri may 22 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.


lsz147-231000-
sand island to bayfield wi-
1100 pm cdt fri may 22 2026

...small craft advisory in effect until 4 am cdt saturday...

.rest of tonight...east wind 10 knots with gusts to around
20 knots rising to 10 to 15 knots with gusts to around 25 knots
after midnight. chance of rain showers. waves 2 to 4 feet
subsiding to 1 to 3 feet toward daybreak. 
.saturday...east wind 5 to 10 knots. gusts up to 20 knots early
in the morning. rain showers likely in the morning, then chance
of rain showers in the afternoon. waves 1 to 2 feet. 
.saturday night...northeast wind 5 to 10 knots early in the
evening becoming variable 10 knots or less. chance of rain
showers in the evening. waves 1 to 2 feet. 
.sunday...variable winds 10 knots or less becoming south 5 knots
in the afternoon. mostly cloudy in the morning then becoming
mostly sunny. waves 1 foot or less. 

$$
fzus53 kdlh 230400
nshdlh
expires:202605231000;;488829

nearshore marine forecast
national weather service duluth mn
1100 pm cdt fri may 22 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.


lsz121-231000-
chequamegon bay-bayfield to oak point wi-
1100 pm cdt fri may 22 2026

.rest of tonight...east wind 5 to 10 knots. gusts up to 20 knots
late in the evening. chance of rain showers late in the evening,
then slight chance of rain showers toward daybreak. waves 1 to
2 feet. 
.saturday...east wind 5 to 10 knots becoming southeast in the
afternoon. rain showers likely in the morning, then chance of
rain showers in the afternoon. waves 1 foot or less. 
.saturday night...east wind 5 to 10 knots becoming north late in
the evening, then becoming variable 10 knots or less after
midnight. chance of rain showers in the evening. waves 1 foot or
less. 
.sunday...variable winds 10 knots or less becoming southwest
5 knots in the late morning and afternoon. slight chance of rain
showers in the afternoon. waves 1 foot or less. 

$$
fzus53 kdlh 230400
nshdlh
expires:202605231000;;488820

nearshore marine forecast
national weather service duluth mn
1100 pm cdt fri may 22 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.


lsz140-231000-
grand portage to grand marais mn-
1100 pm cdt fri may 22 2026

...small craft advisory in effect until 10 am cdt saturday...

.rest of tonight...east wind 15 to 20 knots. gusts up to 25 knots
decreasing to 20 knots toward daybreak. chance of rain showers.
waves 3 to 5 feet. 
.saturday...northeast wind 10 to 15 knots. gusts up to 25 knots
decreasing to 20 knots in the late morning and afternoon. chance
of rain showers in the morning, then rain showers likely in the
afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet late in the
afternoon. 
.saturday night...northeast wind 5 to 10 knots becoming north
early in the morning. slight chance of rain showers. waves 1 to
3 feet. 
.sunday...southwest wind 5 to 10 knots. partly sunny. waves 1 to
2 feet. 

$$
fzus53 kdlh 230400
nshdlh
expires:202605231000;;488821

nearshore marine forecast
national weather service duluth mn
1100 pm cdt fri may 22 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.


lsz141-231000-
grand marais to taconite harbor mn-
1100 pm cdt fri may 22 2026

...small craft advisory in effect until 10 am cdt saturday...

.rest of tonight...northeast wind 15 to 20 knots with gusts to
around 25 knots. chance of rain showers. waves 3 to 5 feet. waves
occasionally to 7 feet. 
.saturday...northeast wind 15 to 20 knots. gusts up to 25 knots
decreasing to 20 knots late in the afternoon. rain showers. waves
2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. 
.saturday night...northeast wind 5 to 10 knots with gusts to
around 20 knots in the evening becoming variable 10 knots or
less. slight chance of rain showers in the evening. waves 1 to
2 feet. 
.sunday...variable winds 10 knots or less becoming southwest
5 knots in the late morning and afternoon. partly sunny. waves
1 to 2 feet. 

$$
fzus53 kdlh 230400
nshdlh
expires:202605231000;;488822

nearshore marine forecast
national weather service duluth mn
1100 pm cdt fri may 22 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.


lsz142-231000-
taconite harbor to silver bay harbor mn-
1100 pm cdt fri may 22 2026

...small craft advisory in effect until 10 am cdt saturday...

.rest of tonight...northeast wind 10 to 15 knots with gusts to
around 25 knots. chance of rain showers late in the evening, then
rain showers likely toward daybreak. waves 3 to 5 feet. waves
occasionally to 7 feet. 
.saturday...northeast wind 10 to 15 knots. gusts up to 25 knots
decreasing to 20 knots late in the afternoon. rain showers in the
morning, then slight chance of rain showers in the afternoon.
waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon.
.saturday night...northeast wind 5 to 10 knots with gusts to
around 20 knots in the evening becoming variable 10 knots or
less. mostly cloudy. waves 1 to 2 feet. 
.sunday...variable winds 10 knots or less becoming southwest
5 knots in the late morning and early afternoon, then becoming
variable 10 knots or less late in the afternoon. partly sunny.
waves 1 foot or less. 

$$
fzus53 kdlh 230400
nshdlh
expires:202605231000;;488823

nearshore marine forecast
national weather service duluth mn
1100 pm cdt fri may 22 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.


lsz143-231000-
silver bay harbor to two harbors mn-
1100 pm cdt fri may 22 2026

...small craft advisory in effect until 4 am cdt saturday...

.rest of tonight...northeast wind 15 to 20 knots with gusts to
around 25 knots. rain showers likely late in the evening, then
chance of rain showers after midnight. rain showers likely toward
daybreak. waves 3 to 5 feet. waves occasionally to 7 feet. 
.saturday...northeast wind 15 to 20 knots with gusts to around
25 knots. rain showers likely in the morning, then chance of rain
showers in the afternoon. waves 2 to 4 feet subsiding to 1 to
3 feet late in the afternoon. a small craft advisory may be
needed. 
.saturday night...northeast wind 10 to 15 knots with gusts to
around 25 knots easing to 5 knots late in the evening, then
becoming variable 10 knots or less after midnight. mostly cloudy.
waves 1 to 3 feet. 
.sunday...variable winds 10 knots or less becoming southwest
5 knots in the late morning and afternoon. mostly sunny. waves
1 foot or less. 

$$
fzus53 kdlh 230400
nshdlh
expires:202605231000;;488824

nearshore marine forecast
national weather service duluth mn
1100 pm cdt fri may 22 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.


lsz144-231000-
two harbors to duluth mn-
1100 pm cdt fri may 22 2026

...small craft advisory in effect until 4 am cdt saturday...

.rest of tonight...northeast wind 15 to 20 knots with gusts to
around 25 knots. rain showers likely late in the evening, then
chance of rain showers after midnight. rain showers likely toward
daybreak. waves 3 to 5 feet. waves occasionally to 7 feet. 
.saturday...northeast wind 15 to 20 knots with gusts to around
25 knots. rain showers likely in the morning. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the afternoon. 
.saturday night...northeast wind 5 to 10 knots with gusts to
around 20 knots in the evening becoming variable 10 knots or
less. mostly cloudy. waves 1 to 2 feet. 
.sunday...variable winds 10 knots or less becoming southwest
5 knots in the late morning and afternoon. slight chance of
showers and thunderstorms in the afternoon. waves 1 foot or less.

$$
fzus53 kdlh 230400
nshdlh
expires:202605231000;;488825

nearshore marine forecast
national weather service duluth mn
1100 pm cdt fri may 22 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.


lsz145-231000-
duluth mn to port wing wi-
1100 pm cdt fri may 22 2026

...small craft advisory in effect until 4 am cdt saturday...

.rest of tonight...northeast wind 15 to 20 knots. gusts up to
25 knots toward daybreak. chance of rain showers late in the
evening, then rain showers likely toward daybreak. waves 3 to
5 feet. waves occasionally to 7 feet. 
.saturday...northeast wind 10 to 15 knots. gusts up to 20 knots
increasing to 25 knots late in the afternoon. rain showers likely
in the morning. waves 2 to 4 feet subsiding to 1 to 3 feet late
in the afternoon. 
.saturday night...northeast wind 5 to 10 knots with gusts to
around 20 knots in the evening becoming variable 10 knots or
less. mostly cloudy. waves 1 to 2 feet. 
.sunday...variable winds 10 knots or less becoming southwest
5 knots in the late morning and afternoon. slight chance of
showers and thunderstorms in the afternoon. waves 1 foot or less.

$$
fzus53 kmqt 230301
nshmqt
expires:202605230800;;486966

nearshore marine forecast
national weather service marquette mi
1100 pm edt fri may 22 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.


lsz242-230800-
ontonagon to upper entrance of portage canal mi-
1101 pm edt fri may 22 2026

.rest of tonight...east wind 10 to 15 knots with gusts up to
24 knots. cloudy with a slight chance of rain showers. waves 1 to
2 feet. 
.saturday...southeast wind 10 to 15 knots diminishing to less
than 10 knots by late morning. mostly cloudy. a slight chance of
rain showers through mid morning, then a chance of rain showers
by late morning. waves calm to 1 foot. 
.saturday night...southeast wind less than 10 knots veering
southwest after midnight. gusts up to 17 knots. cloudy. a chance
of rain showers in the evening. waves calm to 1 foot. 
.sunday...southwest wind less than 10 knots. mostly cloudy in the
morning then becoming mostly sunny. waves calm to 1 foot. 

$$
fzus53 kmqt 230301
nshmqt
expires:202605230800;;486964

nearshore marine forecast
national weather service marquette mi
1100 pm edt fri may 22 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.


lsz240-241-230800-
saxon harbor wi to black river mi-
black river to ontonagon mi-
1101 pm edt fri may 22 2026 /1001 pm cdt fri may 22 2026/

.rest of tonight...east wind 10 to 15 knots. cloudy. a chance of
rain showers by midnight, then a slight chance of rain showers
late. waves 2 to 3 feet subsiding to 1 to 2 feet. 
.saturday...east wind less than 10 knots veering south late.
mostly cloudy with a chance of rain showers. waves 1 to 2 feet. 
.saturday night...southeast wind less than 10 knots veering
southwest after midnight. cloudy. a chance of rain showers in the
evening. waves calm to 1 foot. 
.sunday...variable wind less than 10 knots. partly cloudy. waves
calm to 1 foot. 

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