378
FZUS51 KLWX 131734
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
134 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-
134 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-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
EVENING...
THIS AFTERNOON
W WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED
SHOWERS AND TSTMS.
TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
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.
THU
S WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-140800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
EVENING...
THIS AFTERNOON
W WINDS 5 KT. WAVES LESS THAN 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 5 KT
BECOMING NW LATE. WAVES 1 FT.
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.
THU
S WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-140800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
MORNING...
THIS AFTERNOON
W WINDS 5 KT. WAVES LESS THAN 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
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 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-140800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
EVENING...
THIS AFTERNOON
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT...SW WINDS 5 KT
BECOMING NW 10 TO 15 KT WITH GUSTS TO
20 KT LATE. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. 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.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ531-140800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
EVENING...
THIS AFTERNOON
W WINDS 5 KT. WAVES LESS THAN 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT WITH GUSTS
TO 25 KT LATE. 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.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-140800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
EVENING...
THIS AFTERNOON
W WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 5 KT
BECOMING NW 10 TO 15 KT WITH GUSTS TO
20 KT LATE. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
MON NIGHT
N 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
S WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-140800-
CHESTER RIVER TO QUEENSTOWN MD-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
EVENING...
THIS AFTERNOON
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT...SW WINDS AROUND 5 KT
BECOMING NW 10 TO 15 KT WITH GUSTS
TO 20 KT LATE. WAVES 1 TO 2 FT.
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 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ532-140800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
EVENING...
THIS AFTERNOON
SE WINDS 5 KT. WAVES LESS THAN 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT WITH GUSTS
TO 25 KT LATE. 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 TO 10 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-140800-
EASTERN BAY-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
EVENING...
THIS AFTERNOON
W WINDS 5 KT. WAVES FLAT.
TONIGHT...SW WINDS 5 KT
BECOMING NW 10 TO 15 KT WITH GUSTS TO
20 KT LATE. WAVES 1 FT.
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 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ533-140800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
EVENING...
THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT WITH GUSTS
TO 20 KT LATE. WAVES 1 TO 2 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. 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 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-140800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
EVENING...
THIS AFTERNOON
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT WITH GUSTS
TO 20 KT LATE. WAVES 1 TO 2 FT.
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 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ542-140800-
PATUXENT RIVER TO BROOMES ISLAND MD-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
EVENING...
THIS AFTERNOON
SW WINDS 5 KT. WAVES LESS THAN 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 5 KT
BECOMING NW LATE. WAVES 1 FT.
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.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-140800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
MORNING...
THIS AFTERNOON
SW WINDS 5 KT. WAVES LESS THAN 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING W 10 TO 15 KT WITH GUSTS
TO 20 KT LATE. WAVES 1 TO 2 FT.
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 5 TO 10 KT. WAVES 1 FT OR LESS.
THU...S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS
BUILDING TO 1 TO
2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-140800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
134 PM EDT SUN SEP 13 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
MORNING...
THIS AFTERNOON
SW WINDS 5 KT. WAVES LESS THAN 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. 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 WITH GUSTS TO 25 KT. 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 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page