350
FZUS51 KLWX 122358
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
757 PM EDT SUN JUL 12 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.
ANZ500-130800-
757 PM EDT SUN JUL 12 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL GRADUALLY BUILD IN FROM THE NORTH THROUGH
TUESDAY. SPECIAL MARINE WARNINGS OR MARINE WEATHER STATEMENTS MAY BE
NEEDED FOR STRONG THUNDERSTORMS THIS AFTERNOON INTO THIS EVENING.
ANZ535-130800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
757 PM EDT SUN JUL 12 2026
TONIGHT
E 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 AROUND 5 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
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
ANZ536-130800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
757 PM EDT SUN JUL 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
TONIGHT...SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING E
5 KT LATE. WAVES 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 OR LESS.
TUE
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS AROUND 5 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
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ537-130800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
757 PM EDT SUN JUL 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT MONDAY
TONIGHT
E WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
MON
E WINDS 10 KT. WAVES 2 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS AROUND 5 KT. WAVES FLAT.
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 5 KT. WAVES LESS THAN 1 FT.
FRI...N WINDS 5 KT
BECOMING SE. WAVES 1 FT.
ANZ530-130800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
757 PM EDT SUN JUL 12 2026
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 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.
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
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
ANZ531-130800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
757 PM EDT SUN JUL 12 2026
TONIGHT...SE WINDS 10 TO 15 KT
DIMINISHING TO 5 KT LATE. WAVES
1 TO 2 FT.
MON
SE WINDS 5 KT. WAVES LESS THAN 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 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...SW WINDS 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
ANZ538-130800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
757 PM EDT SUN JUL 12 2026
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
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
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
ANZ539-130800-
CHESTER RIVER TO QUEENSTOWN MD-
757 PM EDT SUN JUL 12 2026
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SE WINDS 5 KT. WAVES FLAT.
MON NIGHT
S WINDS AROUND 5 KT. 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
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...SW WINDS 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT.
THU
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
ANZ532-130800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
757 PM EDT SUN JUL 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 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 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
W WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...N WINDS 5 TO 10 KT
BECOMING E AFTER MIDNIGHT. WAVES 1 FT. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ540-130800-
EASTERN BAY-
757 PM EDT SUN JUL 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
TONIGHT...SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING E
5 KT LATE. WAVES 1 FT.
MON
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE...LIGHT WINDS
BECOMING SW 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 5 KT. WAVES LESS THAN 1 FT.
FRI...N WINDS 5 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ533-130800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
757 PM EDT SUN JUL 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...NW WINDS AROUND 5 KT
BECOMING S IN THE AFTERNOON. 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 TO 10 KT. WAVES 1 FT.
FRI...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT. A CHANCE OF
SHOWERS THROUGH THE NIGHT.
ANZ541-130800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
757 PM EDT SUN JUL 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
TONIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 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 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 TO 10 KT. WAVES 1 FT.
FRI...N WINDS 5 KT
BECOMING E IN THE EVENING, THEN BECOMING S
AFTER MIDNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ542-130800-
PATUXENT RIVER TO BROOMES ISLAND MD-
757 PM EDT SUN JUL 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
TONIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
TUE
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 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 5 KT. WAVES LESS THAN 1 FT.
FRI
N WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ534-130800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
757 PM EDT SUN JUL 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT MONDAY
TONIGHT
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 TO 2 FT.
TUE
SE 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 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES
2 FT.
THU...W WINDS 5 TO 10 KT
BECOMING NW. WAVES 1 FT.
FRI...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
ANZ543-130800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
757 PM EDT SUN JUL 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT MONDAY
TONIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 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 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...SW WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. 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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page