531
FZUS51 KLWX 201158
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
658 AM EST SAT DEC 20 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.
ANZ500-202100-
658 AM EST SAT DEC 20 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A BRIEF BREAK IN WINDS IS EXPECTED TODAY AS HIGH PRESSURE MOVES
OVERHEAD. STRONG SOUTHERLY WINDS TONIGHT WILL LIKELY NECESSITATE
SMALL CRAFT ADVISORIES ONCE AGAIN. MORE SMALL CRAFT ADVISORIES ARE
LIKELY SUNDAY IN NORTHWEST FLOW. ADDITIONAL SMALL CRAFT ADVISORIES
MAY BE NEEDED MONDAY NIGHT THROUGH EARLY WEDNESDAY AS THE NEXT
FRONTAL SYSTEM APPROACHES.
ANZ535-202100-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
658 AM EST SAT DEC 20 2025
TODAY...SE WINDS 5 KT
BECOMING S LATE. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING AND
AFTERNOON. WAVES 1 FT.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
W WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT...S WINDS AROUND 5 KT
INCREASING TO 10 TO 15 KT WITH
GUSTS TO 20 KT AFTER MIDNIGHT. WAVES 1 FT. A CHANCE OF RAIN AND
SNOW.
TUE...SW WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
ANZ536-202100-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
658 AM EST SAT DEC 20 2025
TODAY...SE WINDS 5 KT
BECOMING S LATE. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NW WINDS 10 TO 15 KT. 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 15 TO 20 KT
BECOMING W 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
ANZ537-202100-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
658 AM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
TODAY...NE WINDS 5 KT
BECOMING SE THIS AFTERNOON. WAVES 1 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 2 FT.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON...N WINDS 10 TO 15 KT
BECOMING W AROUND 5 KT IN THE
AFTERNOON. WAVES 1 TO 2 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
BECOMING NW AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
ANZ530-202100-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
658 AM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
TODAY...W WINDS 5 TO 10 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT LATE. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT.
SUN
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SNOW.
TUE...SW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF RAIN IN THE MORNING.
WED...NW WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
ANZ531-202100-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
658 AM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
TODAY...NW WINDS 10 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT.
TONIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT LATE. GUSTS
UP TO 25 KT. WAVES 2 TO 3 FT.
SUN
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
MON
W WINDS 5 TO 10 KT. WAVES 1 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
BECOMING W 10 TO 15 KT. WAVES 1 TO
2 FT. A CHANCE OF RAIN IN THE MORNING.
WED...NW WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
ANZ538-202100-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
658 AM EST SAT DEC 20 2025
TODAY...W WINDS 5 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT OR
LESS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
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 OR LESS. A CHANCE OF
RAIN AND SNOW.
TUE...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF RAIN IN THE MORNING.
WED...NW WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
ANZ539-202100-
CHESTER RIVER TO QUEENSTOWN MD-
658 AM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
TODAY...NW WINDS 10 KT
BECOMING S THIS AFTERNOON. WAVES 1 TO
2 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 2 FT.
SUN
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
W WINDS 5 TO 10 KT. WAVES 1 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 10 TO 15 KT
BECOMING W. WAVES 1 TO 2 FT. A CHANCE
OF RAIN IN THE MORNING.
WED...NW WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
ANZ532-202100-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
658 AM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
TODAY...NW WINDS 10 KT
BECOMING W LATE THIS MORNING, THEN
BECOMING S 10 TO 15 KT THIS AFTERNOON. WAVES 1 TO 2 FT.
TONIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT LATE. GUSTS
UP TO 25 KT. WAVES 3 FT.
SUN
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
MON
W WINDS 5 TO 10 KT. 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
BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT. A
CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
ANZ540-202100-
EASTERN BAY-
658 AM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
TODAY...NW WINDS 5 TO 10 KT
BECOMING S THIS AFTERNOON. WAVES
1 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
25 KT. WAVES 2 FT.
SUN
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 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
BECOMING W 10 KT. WAVES 1 TO 2 FT. A
CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
ANZ533-202100-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
658 AM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
TODAY...NW WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT THIS
AFTERNOON. WAVES 1 TO 2 FT.
TONIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT LATE. GUSTS
UP TO 25 KT. WAVES 3 FT.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT
NW WINDS 15 TO 20 KT. WAVES 3 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING W 5 KT 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
BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT. A
CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 10 TO 15 KT
BECOMING SE. WAVES 1 TO 2 FT.
ANZ541-202100-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
658 AM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
TODAY...NW WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT THIS
AFTERNOON. WAVES 1 FT.
TONIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT LATE. GUSTS
UP TO 25 KT. WAVES 2 FT.
SUN
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 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
BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 FT OR
LESS.
ANZ542-202100-
PATUXENT RIVER TO BROOMES ISLAND MD-
658 AM EST SAT DEC 20 2025
TODAY...NW WINDS 5 KT
BECOMING S LATE. WAVES 1 FT.
TONIGHT
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN.
TUE...SW WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
ANZ534-202100-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
658 AM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
TODAY...N WINDS 5 TO 10 KT
BECOMING S EARLY THIS AFTERNOON, THEN
INCREASING TO 15 KT LATE. WAVES 1 TO 2 FT.
TONIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT LATE. GUSTS
UP TO 25 KT. WAVES 3 FT.
SUN...W WINDS 10 TO 15 KT
BECOMING NW IN THE AFTERNOON. WAVES
2 FT.
SUN NIGHT
NW WINDS 15 TO 20 KT. WAVES 3 FT.
MON...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING NW 5 TO
10 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
BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT. A CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 TO
2 FT.
ANZ543-202100-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
658 AM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
TODAY...NW WINDS 5 TO 10 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT
OR LESS.
TONIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SUN...W WINDS 10 TO 15 KT
BECOMING NW IN THE AFTERNOON. WAVES
1 FT.
SUN NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
MON
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 TO 2 FT.
MON NIGHT
SW 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
BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 FT OR
LESS.
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