• 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 ·
IL- chicago area

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 kapx 150721
nshapx
expires:202605151530;;588164

nearshore marine forecast
national weather service gaylord mi
321 am edt fri may 15 2026

for waters within five nautical miles of shore on lakes huron...
michigan and 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.


lmz346-151530-
manistee to point betsie mi-
321 am edt fri may 15 2026

...small craft advisory in effect from 9 am edt this morning
through late tonight...

.today...south wind 15 to 20 knots. gusts up to 35 knots in the
afternoon. mostly cloudy early in the morning then clearing.
waves 2 feet or less building to 4 to 6 feet. 
.tonight...south wind 10 to 20 knots. chance of showers. waves
4 to 6 feet. 
.saturday...southwest wind 10 to 15 knots. partly sunny. waves
2 to 4 feet. 
.saturday night...east wind 5 to 10 knots. mostly cloudy. waves
2 feet or less. 

see the open lakes forecast for days 3 through 5.

$$
fzus53 kgrb 150625
nshgrb
expires:202605151000;;584219

nearshore marine forecast
national weather service green bay wi
125 am cdt fri may 15 2026

for waters within five nautical miles of shore on lake michigan


lmz542-543-151000-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
125 am cdt fri may 15 2026

...small craft advisory in effect from 9 am cdt this morning
through saturday morning...

.rest of the night...s wind 10 to 15 kts. waves 2 to 4 ft. a
slight chance of showers. 
.friday...s wind to 30 kts. waves 4 to 7 ft building to 6 to
10 ft in the afternoon. partly cloudy. 
.friday night...s wind 15 to 25 kts decreasing to 10 to 15 kts
after midnight. waves 6 to 10 ft subsiding to 4 to 7 ft after
midnight. a chance of showers after midnight. 
.saturday...w wind 10 to 15 kts. waves 3 to 5 ft subsiding to
2 to 4 ft in the afternoon. partly cloudy in the morning then
clearing.  

$$
fzus53 kiwx 150737
nshiwx
expires:202605151415;;588429

nearshore marine forecast
national weather service northern indiana
337 am edt fri may 15 2026

for waters within five nautical miles of shore on lake michigan


lmz043-151415-
new buffalo mi to st joseph mi-
337 am edt fri may 15 2026

.today...south winds 5 to 15 knots. gusts up to 20 to 25 knots. 
mostly cloudy this morning, then becoming mostly sunny by late in
the afternoon. waves 2 feet or less. 
.tonight...south winds 10 to 15 knots. a chance of showers and
thunderstorms overnight. waves 2 feet or less. 
.saturday...south winds 10 knots or less becoming southwest.
showers likely with a chance of thunderstorms in the morning.
waves 2 feet or less. 
.saturday night...south winds less than 10 knots. a chance of
showers. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 50 degrees and at michigan
city is 52 degrees.

$$
fzus53 kiwx 150737
nshiwx
expires:202605151415;;588428

nearshore marine forecast
national weather service northern indiana
337 am edt fri may 15 2026

for waters within five nautical miles of shore on lake michigan


lmz046-151415-
michigan city in to new buffalo mi-
337 am edt fri may 15 2026

.today...south winds 5 to 15 knots. gusts up to 20 to 25 knots. 
mostly cloudy this morning, then becoming mostly sunny by late in
the afternoon. waves 2 feet or less. 
.tonight...south winds 10 to 15 knots. a chance of showers and
thunderstorms overnight. waves 2 feet or less. 
.saturday...south winds 10 knots or less becoming southwest.
showers likely with a chance of thunderstorms in the morning,
then a chance of showers in the afternoon. waves 1 foot or less. 
.saturday night...southeast winds less than 10 knots becoming
south. a chance of showers. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 50 degrees and at michigan
city is 52 degrees.

$$
fzus53 klot 150849
nshlot
expires:202605151530;;591101

nearshore marine forecast
national weather service chicago/romeoville il
349 am cdt fri may 15 2026

for waters within five nautical miles of shore on lake michigan

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.


lmz743>745-151530-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
349 am cdt fri may 15 2026

...small craft advisory in effect from 8 am cdt this morning
through this evening...

.today...southeast winds 10 to 15 kt becoming south and increasing
to 20 to 25 kt. mostly cloudy with a slight chance of showers in 
the morning, then becoming partly cloudy this afternoon. waves 1 
to 3 ft.
.tonight...south winds 15 to 20 kt diminishing to 10 to 15 kt. 
showers likely and a chance of thunderstorms overnight. waves 1 
to 3 ft. 
.saturday...south winds 10 to 15 kt. showers likely and a chance
of thunderstorms in the morning, then chance of showers and 
slight chance of thunderstorms in the afternoon. waves 1 to 2 ft.
.saturday night...southeast winds around 10 kt becoming south.
chance of showers and slight chance of thunderstorms in the 
evening, then chance of showers overnight. waves around 1 ft. 

$$
fzus53 klot 150849
nshlot
expires:202605151530;;591100

nearshore marine forecast
national weather service chicago/romeoville il
349 am cdt fri may 15 2026

for waters within five nautical miles of shore on lake michigan

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.


lmz740>742-151530-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
349 am cdt fri may 15 2026

...small craft advisory in effect from 8 am cdt this morning
through this evening...

.today...south winds 10 to 15 kt increasing to 20 to 25 kt. 
mostly cloudy with a slight chance of a shower this morning, then
becoming partly cloudy. waves 1 to 3 ft building to 2 to 4 ft.
.tonight...south winds 15 to 20 kt diminishing to 10 to 15 kt.
showers likely and a chance of thunderstorms overnight. waves 2 
to 4 ft. 
.saturday...southwest winds 10 to 15 kt becoming southeast. chance
of showers and a slight chance of thunderstorms, mainly in the 
morning. waves 1 to 3 ft.
.saturday night...southeast winds around 10 kt. chance of showers
and a slight chance of thunderstorms. waves 1 to 2 ft. 

$$
fzus53 kmkx 150810
nshmkx
expires:202605152100;;590185

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 am cdt fri may 15 2026

for waters within five nautical miles of shore on lake michigan


lmz645-152100-
north point light to wind point wi-
310 am cdt fri may 15 2026

...small craft advisory in effect from 10 am cdt this morning
through late tonight...

.early this morning...south wind 10 to 15 knots. mostly cloudy
with a 20 percent chance of showers. waves 1 to 2 feet. 
.today...south wind 15 to 20 knots becoming 15 to 25 knots early
in the afternoon, then becoming 15 to 20 knots late in the
afternoon. partly sunny. waves 3 to 4 feet. 
.tonight...south wind 15 to 20 knots becoming 10 to 20 knots
after midnight, then becoming 10 to 15 knots early in the
morning. chance of showers and slight chance of thunderstorms
after midnight. waves 3 to 4 feet. 
.saturday...southwest wind 5 to 10 knots backing south late in
the afternoon. chance of showers and slight chance of
thunderstorms in the morning. waves 1 to 2 feet. 
.saturday night...south wind 5 to 10 knots backing southeast
after midnight, then becoming southeast 5 to 10 knots early in
the morning. slight chance of thunderstorms through around
midnight. chance of showers through the night. waves around
1 foot. 

$$
fzus53 kmkx 150810
nshmkx
expires:202605152100;;590186

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 am cdt fri may 15 2026

for waters within five nautical miles of shore on lake michigan


lmz646-152100-
wind point wi to winthrop harbor il-
310 am cdt fri may 15 2026

...small craft advisory in effect from 10 am cdt this morning
through late tonight...

.early this morning...south wind 10 to 15 knots. mostly cloudy
with a 20 percent chance of showers. waves 1 to 2 feet. 
.today...south wind 15 to 20 knots with gusts to around 25 knots.
mostly cloudy in the morning then clearing. waves 1 to 3 feet
building to 3 to 4 feet in the late morning and afternoon. 
.tonight...south wind 15 to 20 knots becoming 10 to 20 knots
after midnight, then becoming 10 to 15 knots early in the
morning. rain showers likely and a chance of thunderstorms after
midnight. waves 3 to 4 feet. 
.saturday...southwest wind 5 to 10 knots backing south late in
the afternoon. chance of showers and slight chance of
thunderstorms in the morning, then slight chance of showers in
the afternoon. waves 1 to 2 feet. 
.saturday night...southeast wind 5 to 10 knots veering south late
in the evening, then becoming south 5 to 10 knots after midnight
backing southeast early in the morning. chance of showers and
slight chance of thunderstorms through the night. waves around
1 foot. 

$$
fzus53 kmkx 150810
nshmkx
expires:202605152100;;590183

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 am cdt fri may 15 2026

for waters within five nautical miles of shore on lake michigan


lmz643-152100-
sheboygan to port washington wi-
310 am cdt fri may 15 2026

...small craft advisory in effect from 10 am cdt this morning
through late tonight...

.early this morning...south wind 10 to 15 knots. mostly cloudy
with a 20 percent chance of showers. waves 1 to 2 feet. 
.today...south wind 15 to 20 knots becoming 15 to 25 knots late
in the morning, then becoming south 15 to 25 knots with gusts to
around 30 knots in the afternoon. partly sunny in the morning
then clearing. waves 3 to 5 feet building to 6 to 8 feet. 
.tonight...south wind 15 to 25 knots becoming 15 to 20 knots
after midnight, then easing to 10 to 15 knots early in the
morning. chance of showers and slight chance of thunderstorms
after midnight. waves 6 to 8 feet subsiding to 3 to 5 feet. 
.saturday...southwest wind 10 to 15 knots easing to 5 to 10 knots
late in the morning, then backing south early in the afternoon
veering southwest late in the afternoon. slight chance of showers
in the morning. waves 3 to 4 feet subsiding to 1 to 2 feet in the
afternoon. 
.saturday night...south wind 5 to 10 knots backing east after
midnight, then becoming northeast 10 to 15 knots early in the
morning. slight chance of showers through around midnight, then
chance of showers after midnight. waves 1 to 2 feet. 

$$
fzus53 kmkx 150810
nshmkx
expires:202605152100;;590184

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 am cdt fri may 15 2026

for waters within five nautical miles of shore on lake michigan


lmz644-152100-
port washington to north point light wi-
310 am cdt fri may 15 2026

...small craft advisory in effect from 10 am cdt this morning
through late tonight...

.early this morning...south wind 10 to 15 knots. mostly cloudy
with a 20 percent chance of showers. waves 1 to 2 feet. 
.today...south wind 15 to 20 knots becoming 15 to 25 knots in the
afternoon. partly sunny. waves 3 to 4 feet building to 4 to
6 feet in the afternoon. 
.tonight...south wind 15 to 20 knots easing to 10 to 15 knots
after midnight, then veering southwest early in the morning.
chance of showers and slight chance of thunderstorms after
midnight. waves 4 to 6 feet subsiding to 3 to 4 feet. 
.saturday...south wind 5 to 10 knots veering southwest late in
the morning, then backing south early in the afternoon becoming
south 5 to 10 knots late in the afternoon. slight chance of
showers and thunderstorms in the morning. waves 1 to 2 feet. 
.saturday night...south wind 5 to 10 knots backing southeast
after midnight, then becoming east 10 to 15 knots early in the
morning. slight chance of showers and thunderstorms through
around midnight, then chance of showers after midnight. waves
around 1 foot. 

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