923
FZUS51 KLWX 132358
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
758 PM EDT SUN SEP 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.
ANZ500-140800-
758 PM EDT SUN SEP 13 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT APPROACHING FROM THE OHIO RIVER VALLEY WILL CROSS THE
MID-ATLANTIC BY MONDAY MORNING. HIGH PRESSURE WILL RETURN DURING THE
EARLY TO MIDDLE PORTIONS OF THE WEEK. ANOTHER COLD FRONT MAY
APPROACH MID TO LATE WEEK.
ANZ535-140800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...SW WINDS 5 KT
BECOMING NW LATE. WAVES 1 FT. ISOLATED
SHOWERS THIS EVENING.
MON
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
THU
S WINDS AROUND 5 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-140800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...SW WINDS 5 KT
BECOMING NW LATE. WAVES 1 FT. ISOLATED
SHOWERS THIS EVENING.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
THU
S WINDS AROUND 5 KT. WAVES 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT.
ANZ537-140800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
TUESDAY MORNING...
TONIGHT...S WINDS 5 KT
BECOMING W AFTER MIDNIGHT. WAVES 1 FT OR
LESS. ISOLATED SHOWERS THIS EVENING.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
WED
SE WINDS AROUND 5 KT. WAVES FLAT.
WED NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI...N WINDS 5 KT
BECOMING NE. WAVES 1 FT.
ANZ530-140800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...SW WINDS 5 KT
BECOMING NW 15 KT WITH GUSTS TO 20 KT
LATE. WAVES 1 FT OR LESS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 FT.
TUE...NE WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES
1 FT OR LESS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES FLAT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ531-140800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...SW WINDS 5 KT
BECOMING W 10 TO 15 KT WITH GUSTS TO
25 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...NE WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES
1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ538-140800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...SW WINDS 5 KT
BECOMING NW WITH GUSTS TO 20 KT LATE.
WAVES 1 FT OR LESS. ISOLATED SHOWERS THIS EVENING.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
MON NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 FT.
TUE
E WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ539-140800-
CHESTER RIVER TO QUEENSTOWN MD-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...SW WINDS 5 KT
BECOMING NW 15 KT WITH GUSTS TO 20 KT
LATE. WAVES 1 FT OR LESS...BUILDING TO 2 FT LATE.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE...NE WINDS 5 TO 10 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT
OR LESS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES FLAT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ532-140800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...SW WINDS 5 KT
BECOMING W 10 TO 15 KT WITH GUSTS TO
25 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ540-140800-
EASTERN BAY-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...SW WINDS 5 KT
BECOMING NW 15 KT WITH GUSTS TO 20 KT
LATE. WAVES 1 FT OR LESS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE...NE WINDS 5 TO 10 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT
OR LESS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES FLAT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ533-140800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...S WINDS 5 KT
BECOMING W 10 TO 15 KT WITH GUSTS TO 20 KT
AFTER MIDNIGHT. WAVES 1 TO 2 FT. ISOLATED SHOWERS THIS EVENING.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT UNTIL EARLY
MORNING. WAVES 2 TO 3 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES FLAT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...N WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT.
ANZ541-140800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...SW WINDS 5 KT
BECOMING W 10 TO 15 KT WITH GUSTS TO
20 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. ISOLATED SHOWERS THIS
EVENING.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES FLAT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI...N WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT.
ANZ542-140800-
PATUXENT RIVER TO BROOMES ISLAND MD-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...SW WINDS 5 KT
BECOMING NW LATE. WAVES 1 FT. ISOLATED
SHOWERS THIS EVENING.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
E WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
THU
S WINDS AROUND 5 KT. WAVES 1 FT.
FRI
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ534-140800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
TUESDAY MORNING...
TONIGHT...S WINDS 5 TO 10 KT
BECOMING W 10 TO 15 KT WITH GUSTS TO
20 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. ISOLATED SHOWERS THIS
EVENING.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
TUE...NE WINDS 10 TO 15 KT
BECOMING E AROUND 5 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI...W WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT.
ANZ543-140800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
758 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT MONDAY THROUGH
TUESDAY MORNING...
TONIGHT...SW WINDS 5 KT
BECOMING W AFTER MIDNIGHT. WAVES 1 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 25 KT UNTIL EARLY
MORNING. WAVES 1 TO 2 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS AROUND 5 KT. WAVES FLAT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI...NW WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT.
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