470
FZUS51 KLWX 112058
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
458 PM EDT SAT APR 11 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.
ANZ500-120800-
458 PM EDT SAT APR 11 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD QUICKLY NORTH AND EAST OF THE AREA SUNDAY
BEFORE A WARM FRONT MOVES THROUGH LATER THAT EVENING. NEXT WEEK,
HIGH PRESSURE BUILDS TO THE SOUTH WHILE A FRONTAL ZONE REMAINS OVER
THE GREAT LAKES INTO NEW ENGLAND. SMALL CRAFT ADVISORIES MAY BE
NEEDED SUNDAY THROUGH MONDAY EVENING.
ANZ535-120800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT.
TONIGHT...NE WINDS 5 TO 10 KT
DIMINISHING TO AROUND 5 KT AFTER
MIDNIGHT. WAVES 1 FT.
SUN...E WINDS AROUND 5 KT
BECOMING S WITH GUSTS TO 20 KT IN THE
AFTERNOON. WAVES 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
MON NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-120800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
MON NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-120800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
NE WINDS 10 KT. WAVES 1 FT.
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
SE WINDS 10 TO 15 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 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ530-120800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SUN...E WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ531-120800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...E WINDS 5 KT
BECOMING S 10 TO 15 KT WITH GUSTS TO 20 KT IN
THE AFTERNOON. WAVES 1 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING
TO 5 KT AFTER MIDNIGHT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ538-120800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT OR LESS.
SUN NIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT OR LESS.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ539-120800-
CHESTER RIVER TO QUEENSTOWN MD-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...E WINDS 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ532-120800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
NE WINDS 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...E WINDS 5 KT
BECOMING S 10 TO 15 KT WITH GUSTS TO 20 KT IN
THE AFTERNOON. WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 15 TO 20 KT. WAVES 2 FT.
MON
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ540-120800-
EASTERN BAY-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...E WINDS 5 KT
BECOMING S 10 TO 15 KT WITH GUSTS TO 20 KT IN
THE AFTERNOON. WAVES 1 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ533-120800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
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 15 TO 20 KT. WAVES 2 FT.
MON
SW WINDS 15 TO 20 KT. WAVES 2 FT.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ541-120800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...E WINDS 5 KT
BECOMING S 10 TO 15 KT WITH GUSTS TO 20 KT IN
THE AFTERNOON. WAVES 1 FT.
SUN NIGHT
S WINDS 15 TO 20 KT. WAVES 2 FT.
MON
SW WINDS 15 TO 20 KT. WAVES 2 FT.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
SW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ542-120800-
PATUXENT RIVER TO BROOMES ISLAND MD-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
NE WINDS 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
SE WINDS 10 TO 15 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-120800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
E 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 15 TO 20 KT. WAVES 3 FT.
MON
SW WINDS 15 TO 20 KT. WAVES 2 FT.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ543-120800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
458 PM EDT SAT APR 11 2026
REST OF THIS AFTERNOON
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 15 TO 20 KT. WAVES 2 FT.
MON
S WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 10 TO 15 KT. WAVES 1 FT.
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