• 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 ·
xt_Great Lakes

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

fzus51 klwx 101500
cwflwx
expires:202604102000;;139628

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt fri apr 10 2026

tidal potomac river and maryland portion of chesapeake bay.

forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow.  waves flat where waters are iced over.


anz531-102000-
chesapeake bay from pooles island to sandy point-
1100 am edt fri apr 10 2026

...small craft advisory in effect from 6 pm edt this evening through
late tonight...
...small craft advisory in effect from saturday morning through
saturday afternoon...

.rest of today...s winds 5 to 10 kt. gusts up to 20 kt this
afternoon. waves 1 to 2 ft. 
.tonight...s winds 5 to 10 kt with gusts to 20 kt... becoming w
late. waves 2 ft. 
.sat...n winds 10 to 15 kt. gusts up to 20 kt until late afternoon.
waves 1 to 2 ft. 
.sat night...ne winds 5 to 10 kt. waves 1 ft. 
.sun...se winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft. 
.sun night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.mon...sw winds 10 to 15 kt. waves 1 to 2 ft. 
.tue...sw winds 5 to 10 kt. waves 1 ft.  

$$
fzus51 klwx 101500
cwflwx
expires:202604102000;;139631

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt fri apr 10 2026

tidal potomac river and maryland portion of chesapeake bay.

forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow.  waves flat where waters are iced over.


anz532-102000-
chesapeake bay from sandy point to north beach-
1100 am edt fri apr 10 2026

...small craft advisory in effect from 6 pm edt this evening through
late tonight...
...small craft advisory in effect from saturday morning through
saturday afternoon...

.rest of today...s winds 10 to 15 kt. gusts up to 20 kt this
afternoon. waves 1 to 2 ft. patchy fog late this morning with vsby
1 to 3 nm. 
.tonight...s winds 10 to 15 kt with gusts to 20 kt... becoming w
5 to 10 kt late. waves 2 ft. 
.sat...n winds 10 to 15 kt. gusts up to 20 kt until late afternoon.
waves 1 to 2 ft. 
.sat night...ne winds 5 to 10 kt. waves 1 ft. 
.sun...se winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft. 
.sun night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.mon...sw winds 15 to 20 kt...diminishing to 5 to 10 kt after
midnight. waves 2 to 3 ft...subsiding to 1 ft after midnight. 
.tue...sw winds 5 to 10 kt. waves 1 ft.  

$$
fzus51 klwx 101500
cwflwx
expires:202604102000;;139633

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt fri apr 10 2026

tidal potomac river and maryland portion of chesapeake bay.

forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow.  waves flat where waters are iced over.


anz533-102000-
chesapeake bay from north beach to drum point-
1100 am edt fri apr 10 2026

...small craft advisory in effect from 6 pm edt this evening through
late tonight...
...small craft advisory in effect from saturday morning through
saturday afternoon...

.rest of today...s winds 5 to 10 kt...increasing to 15 kt with gusts
to 20 kt late. waves 1 to 2 ft. 
.tonight...s winds 10 to 15 kt...becoming w 5 to 10 kt late. gusts
up to 20 kt. waves 2 ft. 
.sat...n winds 10 to 15 kt. gusts up to 20 kt until late afternoon.
waves 2 ft. 
.sat night...ne winds 5 to 10 kt. waves 1 ft. 
.sun...se winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft. 
.sun night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.mon...sw winds 15 to 20 kt...diminishing to 5 to 10 kt after
midnight. waves 2 to 3 ft...subsiding to 1 ft after midnight. 
.tue...sw winds 5 to 10 kt. waves 1 ft.  

$$
fzus51 klwx 101500
cwflwx
expires:202604102000;;139636

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt fri apr 10 2026

tidal potomac river and maryland portion of chesapeake bay.

forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow.  waves flat where waters are iced over.


anz534-102000-
chesapeake bay from drum point to smith point-
1100 am edt fri apr 10 2026

...small craft advisory in effect from 6 pm edt this evening through
late tonight...
...small craft advisory in effect from saturday morning through
saturday afternoon...

.rest of today...s winds 5 to 10 kt...increasing to 15 kt with gusts
to 20 kt late. waves 1 to 2 ft. 
.tonight...s winds 10 to 15 kt...becoming sw late. gusts up to
25 kt. waves 2 to 3 ft. 
.sat...n winds 10 to 15 kt with gusts to 20 kt. waves 3 ft. 
.sat night...e winds 5 to 10 kt. waves 1 ft. 
.sun...se winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
waves 1 to 2 ft. 
.sun night...s winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. 
.mon...sw winds 15 to 20 kt. waves 2 to 3 ft. 
.tue...sw winds 10 to 15 kt...becoming s. waves 1 to 2 ft.  

$$
fzus51 klwx 101500
cwflwx
expires:202604102000;;139624

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt fri apr 10 2026

tidal potomac river and maryland portion of chesapeake bay.

forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow.  waves flat where waters are iced over.


anz535-102000-
tidal potomac from key bridge to indian head-
1100 am edt fri apr 10 2026

.rest of today...s winds 5 to 10 kt. waves 1 ft. 
.tonight...s winds 5 to 10 kt...becoming nw late. waves 1 ft. 
.sat...n winds 5 to 10 kt. waves 1 ft. 
.sat night...ne winds 5 kt. waves less than 1 ft. 
.sun...se winds 5 to 10 kt. waves 1 ft. 
.sun night...s winds 10 kt. waves 1 ft. 
.mon...sw winds 10 to 15 kt...diminishing to around 5 kt after
midnight. waves 1 ft. 
.tue...sw winds around 5 kt. waves 1 ft.  

$$
fzus51 klwx 101500
cwflwx
expires:202604102000;;139625

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt fri apr 10 2026

tidal potomac river and maryland portion of chesapeake bay.

forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow.  waves flat where waters are iced over.


anz536-102000-
tidal potomac from indian head to cobb island-
1100 am edt fri apr 10 2026

.rest of today...s winds 5 to 10 kt. waves 1 ft. 
.tonight...s winds 5 to 10 kt...becoming w late. waves 1 ft. 
.sat...n winds 5 to 10 kt. waves 1 ft. 
.sat night...ne winds 5 kt. waves less than 1 ft. 
.sun...se winds 5 to 10 kt. waves 1 ft. 
.sun night...s winds 10 kt. waves 1 ft. 
.mon...sw winds 10 to 15 kt. waves 1 ft. 
.tue...sw winds 5 to 10 kt. waves 1 ft.  

$$
fzus51 klwx 101500
cwflwx
expires:202604102000;;139626

coastal waters forecast
national weather service baltimore md/washington dc
1100 am edt fri apr 10 2026

tidal potomac river and maryland portion of chesapeake bay.

forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow.  waves flat where waters are iced over.


anz537-102000-
tidal potomac from cobb island to smith point-
1100 am edt fri apr 10 2026

...small craft advisory in effect from 6 pm edt this evening through
late tonight...
...small craft advisory in effect from saturday morning through
saturday afternoon...

.rest of today...s winds 5 to 10 kt. gusts up to 20 kt this
afternoon. waves 1 ft or less. 
.tonight...s winds 10 to 15 kt...becoming sw 5 to 10 kt after
midnight. gusts up to 20 kt. waves 1 to 2 ft. 
.sat...n winds 10 to 15 kt. gusts up to 20 kt until late afternoon.
waves 2 ft. 
.sat night...e winds 5 kt. waves less than 1 ft. 
.sun...se winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
waves 1 to 2 ft. 
.sun night...s winds 10 to 15 kt with gusts to 20 kt. waves 2 ft. 
.mon...sw winds 10 to 15 kt. waves 1 to 2 ft. 
.tue...sw winds 5 to 10 kt. waves 1 ft.  

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