037
FZUS51 KLWX 131459
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1058 AM EDT MON APR 13 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.
ANZ500-132000-
1058 AM EDT MON APR 13 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD TO THE SOUTH WHILE A FRONTAL ZONE REMAINS
OVER THE GREAT LAKES INTO NEW ENGLAND. SMALL CRAFT ADVISORIES MAY BE
NEEDED THIS EVENING AND AT TIMES EACH AFTERNOON TUESDAY THROUGH
THURSDAY.
ANZ535-132000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 30 KT. WAVES 1 FT.
ISOLATED SHOWERS.
TONIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
DIMINISHING
TO AROUND 5 KT IN THE LATE EVENING AND OVERNIGHT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-132000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
ISOLATED SHOWERS THIS AFTERNOON.
TONIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT.
ANZ537-132000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT.
TONIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ530-132000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
ISOLATED SHOWERS.
TONIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
DIMINISHING
TO AROUND 5 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ531-132000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT. ISOLATED SHOWERS.
TONIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
DIMINISHING
TO 5 KT AFTER MIDNIGHT. WAVES 3 FT...SUBSIDING TO 1 FT AFTER
MIDNIGHT.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ538-132000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT. ISOLATED SHOWERS.
TONIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
DIMINISHING
TO AROUND 5 KT IN THE LATE EVENING AND OVERNIGHT. WAVES 2 FT...
SUBSIDING TO FLAT AFTER MIDNIGHT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ539-132000-
CHESTER RIVER TO QUEENSTOWN MD-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT. ISOLATED SHOWERS THIS AFTERNOON.
TONIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
DIMINISHING
TO 5 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ532-132000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
ISOLATED SHOWERS THIS AFTERNOON.
TONIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
DIMINISHING
TO 5 KT LATE. WAVES 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ540-132000-
EASTERN BAY-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
ISOLATED SHOWERS THIS AFTERNOON.
TONIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
DIMINISHING
TO 5 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ533-132000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
ISOLATED SHOWERS THIS AFTERNOON.
TONIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
DIMINISHING
TO 5 KT LATE. WAVES 1 TO 2 FT.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ541-132000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
ISOLATED SHOWERS THIS AFTERNOON.
TONIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 25 KT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ542-132000-
PATUXENT RIVER TO BROOMES ISLAND MD-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TONIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT.
ANZ534-132000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
TONIGHT...SW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT. WAVES 3 FT
SUBSIDING TO 1 FT AFTER MIDNIGHT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE NIGHT
SW WINDS 10 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 TO
2 FT.
ANZ543-132000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1058 AM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
SW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES
2 TO 3 FT.
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
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