051
FZUS51 KLWX 201758
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1257 PM 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.
ANZ500-210900-
1257 PM 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.
ANZ535-210900-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1257 PM EST SAT DEC 20 2025
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN...W WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING NW WITH
GUSTS TO 25 KT LATE. 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 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN AND
SNOW.
TUE...SW WINDS 10 TO 15 KT
BECOMING W 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.
ANZ536-210900-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1257 PM EST SAT DEC 20 2025
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 1 FT.
SUN
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 FT.
SUN NIGHT
N WINDS 10 TO 15 KT. 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 TO 2 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.
WED...N WINDS 5 TO 10 KT
BECOMING SE IN THE EVENING, THEN
BECOMING S 10 TO 15 KT AFTER MIDNIGHT. WAVES 1 FT. A CHANCE OF RAIN
AFTER MIDNIGHT.
ANZ537-210900-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1257 PM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
THIS AFTERNOON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 2 FT.
SUN
NW WINDS 10 KT. WAVES 1 FT.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON...N WINDS 5 TO 10 KT
BECOMING W 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 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 TO
2 FT...SUBSIDING TO 1 FT OR LESS.
ANZ530-210900-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1257 PM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 1 TO 2 FT.
SUN...W WINDS 10 TO 15 KT
BECOMING NW LATE. GUSTS UP 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...SW WINDS 5 KT
BECOMING S 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF 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 10 TO 15 KT
BECOMING NE AROUND 5 KT IN THE
EVENING, THEN BECOMING SE AFTER MIDNIGHT. WAVES 1 FT OR LESS. A
CHANCE OF RAIN AFTER MIDNIGHT.
ANZ531-210900-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1257 PM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT.
TONIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT LATE. WAVES
2 FT.
SUN...W WINDS 10 TO 15 KT
BECOMING NW LATE. GUSTS UP TO 20 KT.
WAVES 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 5 TO 10 KT
INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF 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 10 TO 15 KT
BECOMING NE AROUND 5 KT IN THE
EVENING, THEN BECOMING S AFTER MIDNIGHT. WAVES 1 TO 2 FT...SUBSIDING
TO 1 FT OR LESS. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ538-210900-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1257 PM EST SAT DEC 20 2025
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN...W WINDS 10 TO 15 KT
BECOMING NW LATE. GUSTS UP TO 20 KT.
WAVES 1 FT.
SUN NIGHT
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
W WINDS 5 KT. WAVES FLAT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF
SNOW.
TUE...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT OR
LESS. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ539-210900-
CHESTER RIVER TO QUEENSTOWN MD-
1257 PM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 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
BECOMING NW LATE. GUSTS UP TO 20 KT.
WAVES 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 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 10 TO 15 KT
BECOMING NE AROUND 5 KT IN THE
EVENING, THEN BECOMING S AFTER MIDNIGHT. WAVES 1 TO 2 FT...SUBSIDING
TO 1 FT OR LESS. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ532-210900-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1257 PM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
THIS AFTERNOON
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TONIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT LATE. WAVES
3 FT.
SUN
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 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 FT...BUILDING TO 3 FT AFTER MIDNIGHT. 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...NW WINDS 10 TO 15 KT
BECOMING E AROUND 5 KT IN THE EVENING,
THEN BECOMING S 10 TO 15 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT...
SUBSIDING TO FLAT IN THE EVENING, THEN BUILDING TO 2 FT AFTER
MIDNIGHT. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ540-210900-
EASTERN BAY-
1257 PM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT LATE. WAVES
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 TO
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 1 TO 2 FT. A CHANCE OF RAIN IN THE MORNING.
WED...NW WINDS 10 TO 15 KT
BECOMING E AROUND 5 KT IN THE EVENING,
THEN BECOMING S AFTER MIDNIGHT. WAVES 1 FT OR LESS. A CHANCE OF RAIN
AFTER MIDNIGHT.
ANZ533-210900-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1257 PM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
THIS AFTERNOON
S WINDS 10 TO 15 KT. WAVES 1 FT.
TONIGHT...S WINDS 15 TO 20 KT
BECOMING SW LATE. WAVES 3 FT.
SUN...W WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT LATE. WAVES
2 FT.
SUN NIGHT
NW WINDS 15 TO 20 KT. WAVES 3 FT.
MON
W WINDS 5 TO 10 KT. 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. A CHANCE OF RAIN IN THE MORNING.
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 TO 2 FT. A
CHANCE OF RAIN AFTER MIDNIGHT.
ANZ541-210900-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1257 PM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
THIS AFTERNOON...S WINDS 5 KT
INCREASING TO 15 KT LATE. WAVES
1 FT OR LESS.
TONIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT LATE. WAVES
2 FT.
SUN
NW WINDS 15 TO 20 KT. WAVES 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 FT. A CHANCE OF RAIN IN THE MORNING.
WED...NW WINDS 10 TO 15 KT
BECOMING E AROUND 5 KT IN THE EVENING,
THEN BECOMING S 10 TO 15 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT...
SUBSIDING TO 1 FT OR LESS. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ542-210900-
PATUXENT RIVER TO BROOMES ISLAND MD-
1257 PM EST SAT DEC 20 2025
THIS AFTERNOON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 1 FT.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NW WINDS 5 TO 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 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 W 5 TO 10 KT. WAVES 1 FT. A
CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT. A CHANCE OF
RAIN AFTER MIDNIGHT.
ANZ534-210900-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1257 PM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
THIS AFTERNOON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT...S WINDS 15 TO 20 KT
BECOMING SW LATE. 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
BECOMING W 5 TO 10 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 AFTER MIDNIGHT. WAVES 2 TO
3 FT. A CHANCE OF RAIN IN THE MORNING.
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.
ANZ543-210900-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1257 PM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT LATE. WAVES
2 FT.
SUN...W WINDS 10 TO 15 KT
BECOMING NW IN THE AFTERNOON. GUSTS UP
TO 20 KT. WAVES 1 FT.
SUN NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
MON...N WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT IN THE AFTERNOON.
WAVES 1 FT.
MON NIGHT...SW WINDS 5 TO 10 KT
BECOMING S 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 FT. A CHANCE OF RAIN IN THE MORNING.
WED...NW WINDS 10 TO 15 KT
BECOMING NE 5 KT IN THE EVENING, THEN
BECOMING S 10 TO 15 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT...SUBSIDING
TO 1 FT OR LESS.
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