405
FZUS51 KLWX 211758
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1258 PM EST SUN DEC 21 2025
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.
ANZ500-220900-
1258 PM EST SUN DEC 21 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL MOVE OVERHEAD MONDAY. A LOW PRESSURE SYSTEM
MOVING THROUGH THE GREAT LAKES MAY AFFECT THE AREA LATE MONDAY NIGHT
INTO TUESDAY. ANOTHER TRANSIENT AREA OF HIGH PRESSURE ON WEDNESDAY
MAY GIVE WAY TO A WARM FRONT ON THURSDAY. SMALL CRAFT ADVISORIES MAY
BE NEEDED MONDAY NIGHT THROUGH EARLY WEDNESDAY.
ANZ535-220900-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES
1 FT.
TONIGHT
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
MON
W WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN AND
SNOW.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT. A CHANCE OF
RAIN AFTER MIDNIGHT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ536-220900-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TONIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 FT.
MON
W WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF RAIN AND SNOW.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ537-220900-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON...N WINDS 5 TO 10 KT
BECOMING SW IN THE AFTERNOON. WAVES 1 FT
OR LESS.
MON NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN AND
SNOW.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE NIGHT
W WINDS 10 KT. WAVES 1 FT.
WED...N WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ530-220900-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
W WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN AND
SNOW.
TUE
SW WINDS 10 TO 15 KT. WAVES 1 FT.
TUE NIGHT
W WINDS 10 TO 15 KT. WAVES 1 FT.
WED...NW WINDS 10 TO 15 KT
BECOMING E AROUND 5 KT. WAVES 1 FT OR
LESS. A CHANCE OF RAIN AFTER MIDNIGHT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ531-220900-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON...NW WINDS 5 TO 10 KT
BECOMING SW IN THE AFTERNOON. WAVES
1 FT.
MON NIGHT
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN
AND SNOW.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED...NW WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT...SUBSIDING TO 1 FT OR LESS. A CHANCE OF RAIN AFTER MIDNIGHT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ538-220900-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING
TO 5 KT LATE. WAVES 1 FT.
MON
W WINDS AROUND 5 KT. WAVES FLAT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF
RAIN AND SNOW.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING E. WAVES 1 FT OR LESS. A
CHANCE OF RAIN AFTER MIDNIGHT.
THU
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ539-220900-
CHESTER RIVER TO QUEENSTOWN MD-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TONIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 2 FT.
MON...NW WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT OR LESS.
MON NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN AND
SNOW.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WED...NW WINDS 5 TO 10 KT...BECOMING E. WAVES 1 TO 2 FT
SUBSIDING
TO 1 FT OR LESS. A CHANCE OF RAIN AFTER MIDNIGHT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ532-220900-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TONIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT UNTIL EARLY
MORNING. WAVES 2 FT.
MON...NW WINDS 5 TO 10 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT
OR LESS.
MON NIGHT...S WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF RAIN AND SNOW.
TUE
SW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
TUE NIGHT
W WINDS 10 TO 15 KT. WAVES 1 FT.
WED...NW WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 FT OR
LESS. A CHANCE OF RAIN AFTER MIDNIGHT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ540-220900-
EASTERN BAY-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TONIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 2 FT.
MON...NW WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT OR LESS.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF RAIN.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING E. WAVES 1 FT OR LESS. A
CHANCE OF RAIN AFTER MIDNIGHT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ533-220900-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
MON...N WINDS 5 TO 10 KT
BECOMING SW IN THE AFTERNOON. WAVES 1 TO
2 FT.
MON NIGHT...S WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF RAIN AND SNOW.
TUE
SW WINDS 15 TO 20 KT. WAVES 2 FT.
TUE NIGHT
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED...N WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 TO
2 FT.
THU
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ541-220900-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON...NW WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT OR LESS.
MON NIGHT...S WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF RAIN AND SNOW.
TUE
SW WINDS 15 TO 20 KT. WAVES 2 FT.
TUE NIGHT
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED...NW WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT...SUBSIDING TO 1 FT OR LESS.
THU
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ542-220900-
PATUXENT RIVER TO BROOMES ISLAND MD-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TONIGHT
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN AND
SNOW.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ534-220900-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON...N WINDS 10 TO 15 KT
BECOMING SW 5 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF RAIN AND SNOW.
TUE
SW WINDS 15 TO 20 KT. WAVES 3 FT. A CHANCE OF RAIN.
TUE NIGHT
W WINDS 10 TO 15 KT. WAVES 2 FT.
WED...N WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO 2 FT.
THU
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ543-220900-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1258 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
NW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON...N WINDS 10 TO 15 KT
BECOMING W 5 KT IN THE AFTERNOON. WAVES
1 FT.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF RAIN.
TUE
SW WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN.
TUE NIGHT
W WINDS 10 TO 15 KT. WAVES 1 FT.
WED...NW WINDS 10 TO 15 KT
BECOMING NE 5 KT IN THE EVENING, THEN
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
THU
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
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