953
FZUS51 KLWX 211158
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
658 AM 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.
ANZ500-212100-
658 AM EST SUN DEC 21 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A WEAK COLD FRONT WILL CROSS THIS MORNING, FOLLOWED BY HIGH PRESSURE
MOVING 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.
ANZ535-212100-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
658 AM EST SUN DEC 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
TODAY...W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
BECOMING NW 10 TO
15 KT WITH GUSTS TO 25 KT THIS AFTERNOON. 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 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 FT.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED...N 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. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ536-212100-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
658 AM EST SUN DEC 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
TODAY
NW WINDS 10 KT. GUSTS UP 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 5 TO 10 KT
INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 FT. A CHANCE OF RAIN AND SNOW.
TUE...SW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 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
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ537-212100-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
658 AM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EST THIS MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM EST THIS AFTERNOON
THROUGH LATE TONIGHT...
TODAY
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON...NW WINDS 5 TO 10 KT
BECOMING S LATE. 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 2 FT. A
CHANCE OF RAIN.
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 OR
LESS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ530-212100-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
658 AM EST SUN DEC 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
TODAY...W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO
25 KT THIS AFTERNOON. WAVES 1 TO 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 SNOW.
TUE
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN.
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. A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ531-212100-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
658 AM EST SUN DEC 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
TODAY...W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO
25 KT THIS AFTERNOON. WAVES 1 TO 2 FT.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON...W WINDS 5 TO 10 KT
BECOMING SW LATE. 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. A
CHANCE OF RAIN.
TUE NIGHT
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED...NW WINDS 10 TO 15 KT
BECOMING SE 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. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ538-212100-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
658 AM EST SUN DEC 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
TODAY...W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO
25 KT THIS AFTERNOON. 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. A CHANCE OF RAIN.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS. A
CHANCE OF RAIN AFTER MIDNIGHT.
THU
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF RAIN IN
THE MORNING. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ539-212100-
CHESTER RIVER TO QUEENSTOWN MD-
658 AM EST SUN DEC 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
TODAY...W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO
25 KT THIS AFTERNOON. WAVES 1 TO 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 SW LATE. 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 1 TO 2 FT. A
CHANCE OF RAIN.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WED...NW WINDS 5 TO 10 KT...BECOMING SE. 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. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ532-212100-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
658 AM EST SUN DEC 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
TODAY...NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO
25 KT LATE. 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 LATE. WAVES 1 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 TO 3 FT. A CHANCE OF RAIN.
TUE NIGHT
W WINDS 10 TO 15 KT. WAVES 1 FT.
WED...N 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 TO 2 FT. A CHANCE OF RAIN IN THE
MORNING. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ540-212100-
EASTERN BAY-
658 AM EST SUN DEC 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
TODAY...W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO
25 KT LATE. WAVES 1 TO 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 SW LATE. WAVES 1 FT OR LESS.
MON NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF RAIN AND SNOW.
TUE...SW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT. A CHANCE OF RAIN.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING SE. 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.
ANZ533-212100-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
658 AM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EST THIS MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
TODAY
NW WINDS 10 TO 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...NW WINDS 5 TO 10 KT
BECOMING S LATE. 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. A CHANCE OF RAIN.
TUE NIGHT
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED...N WINDS 10 TO 15 KT
BECOMING SE. WAVES 1 TO 2 FT. A CHANCE
OF RAIN AFTER MIDNIGHT.
THU
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN IN THE
MORNING. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ541-212100-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
658 AM EST SUN DEC 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
TODAY...NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO
25 KT LATE. 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 LATE. WAVES 1 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. A CHANCE OF RAIN.
TUE NIGHT
W WINDS 10 TO 15 KT. WAVES 1 FT.
WED...N WINDS 10 TO 15 KT
BECOMING E AROUND 5 KT IN THE EVENING,
THEN BECOMING S 10 TO 15 KT AFTER MIDNIGHT. WAVES 1 FT OR LESS. A
CHANCE OF RAIN AFTER MIDNIGHT.
THU
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ542-212100-
PATUXENT RIVER TO BROOMES ISLAND MD-
658 AM EST SUN DEC 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM EST THIS AFTERNOON
THROUGH LATE TONIGHT...
TODAY
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. A
CHANCE OF RAIN.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ534-212100-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
658 AM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EST THIS MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM EST THIS AFTERNOON
THROUGH LATE TONIGHT...
TODAY
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W 5 KT IN
THE AFTERNOON. WAVES 1 TO 2 FT.
MON NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
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 KT IN THE EVENING, THEN
BECOMING S 10 TO 15 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
THU
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN IN THE
MORNING. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ543-212100-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
658 AM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EST THIS MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM EST THIS AFTERNOON
THROUGH LATE TONIGHT...
TODAY...W WINDS 10 TO 15 KT
BECOMING NW LATE. GUSTS UP 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 WITH GUSTS TO 20 KT
BECOMING W 5 KT IN
THE AFTERNOON. WAVES 1 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. A CHANCE OF RAIN.
TUE NIGHT...W WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT.
WED...N WINDS 10 TO 15 KT
BECOMING E 5 KT IN THE EVENING, THEN
BECOMING S 10 TO 15 KT AFTER MIDNIGHT. WAVES 1 FT.
THU
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING. A CHANCE OF RAIN AFTER MIDNIGHT.
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