045
FZUS51 KLWX 130627
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
227 AM EDT MON JUL 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-
227 AM EDT MON JUL 13 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL GRADUALLY BUILD IN FROM THE NORTH THROUGH
TUESDAY. A PERIOD OF SOUTHERLY CHANNELING MAY RESULT IN BRIEF SMALL
CRAFT CONDITIONS TUESDAY AFTERNOON AND EVENING.
ANZ535-132000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
227 AM EDT MON JUL 13 2026
OVERNIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
E WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-132000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
227 AM EDT MON JUL 13 2026
OVERNIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT...SE WINDS 5 TO 10 KT UNTIL EARLY MORNING
BECOMING
LIGHT. WAVES 1 FT.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
W WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT.
ANZ537-132000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
227 AM EDT MON JUL 13 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...
OVERNIGHT
E WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...NE WINDS AROUND 5 KT
BECOMING SE IN THE AFTERNOON. 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
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI...N WINDS 5 KT
BECOMING S. WAVES 1 FT.
ANZ530-132000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
227 AM EDT MON JUL 13 2026
OVERNIGHT
SE WINDS 5 KT. WAVES FLAT.
MON
SE WINDS AROUND 5 KT. WAVES FLAT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 10 TO 15 KT. WAVES 1 FT.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ531-132000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
227 AM EDT MON JUL 13 2026
OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT...S WINDS 5 TO 10 KT
BECOMING SW LATE. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 10 TO 15 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...NW WINDS 5 TO 10 KT
BECOMING SW. WAVES 1 FT.
ANZ538-132000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
227 AM EDT MON JUL 13 2026
OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 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
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI...NW WINDS 5 TO 10 KT
BECOMING SW. WAVES 1 FT OR LESS.
ANZ539-132000-
CHESTER RIVER TO QUEENSTOWN MD-
227 AM EDT MON JUL 13 2026
OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SE WINDS 5 KT. WAVES FLAT.
MON NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 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
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
W WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ532-132000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
227 AM EDT MON JUL 13 2026
OVERNIGHT
SE WINDS 10 KT. WAVES 1 FT.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 10 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...NE WINDS 5 KT
BECOMING S. WAVES 1 FT.
ANZ540-132000-
EASTERN BAY-
227 AM EDT MON JUL 13 2026
OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
W WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ533-132000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
227 AM EDT MON JUL 13 2026
OVERNIGHT
SE WINDS 10 KT. WAVES 1 TO 2 FT.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 10 KT. WAVES 1 TO 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...NE WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
ANZ541-132000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
227 AM EDT MON JUL 13 2026
OVERNIGHT
E WINDS 10 KT. WAVES 1 FT.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 10 TO 15 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI...N WINDS 5 KT
BECOMING S. WAVES 1 FT.
ANZ542-132000-
PATUXENT RIVER TO BROOMES ISLAND MD-
227 AM EDT MON JUL 13 2026
OVERNIGHT
E WINDS 10 KT. WAVES 1 FT.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT...SE WINDS 5 TO 10 KT UNTIL EARLY MORNING
BECOMING
LIGHT. WAVES 1 FT.
TUE...LIGHT WINDS
BECOMING S 5 TO 10 KT IN THE AFTERNOON. 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
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT.
FRI
E WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ534-132000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
227 AM EDT MON JUL 13 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...
OVERNIGHT
E WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
MON
E WINDS 10 TO 15 KT. WAVES 2 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...E WINDS AROUND 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT
OR LESS.
TUE NIGHT
SW WINDS 10 TO 15 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WED NIGHT...SW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. WAVES 2 FT.
THU...NW WINDS 5 TO 10 KT
BECOMING SW IN THE AFTERNOON AND
EVENING, THEN BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
FRI...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
ANZ543-132000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
227 AM EDT MON JUL 13 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...
OVERNIGHT
E WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...E WINDS AROUND 5 KT
BECOMING SW IN THE AFTERNOON. WAVES
1 FT OR LESS.
TUE NIGHT
SW WINDS 10 TO 15 KT. WAVES 1 FT.
WED
SW WINDS 10 TO 15 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 10 TO 15 KT. WAVES 1 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...NW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
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