487
FZUS51 KLWX 192358
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
658 PM EST FRI DEC 19 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.
ANZ500-200900-
658 PM EST FRI DEC 19 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
STRONG POST-FRONTAL WINDS ARE EXPECTED INTO THE EVENING. GALES ARE
EXPECTED, WITH THE STRONGEST WINDS MOST LIKELY NORTH OF NORTH BEACH
MD AND OVER THE UPPER TIDAL POTOMAC RIVER. A BRIEF BREAK IN WINDS IS
EXPECTED FOR THE FIRST HALF OF SATURDAY, BUT STRONG SOUTHERLY WINDS
SATURDAY NIGHT 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 TUESDAY AS THE
NEXT FRONTAL SYSTEM APPROACHES.
ANZ535-200900-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
658 PM EST FRI DEC 19 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 15 TO 20 KT WITH GUSTS TO 45 KT
BECOMING NW
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
SAT
SW WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NW WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SNOW.
TUE...SW WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SNOW IN THE MORNING.
WED
NE WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-200900-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
658 PM EST FRI DEC 19 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 25 KT WITH GUSTS TO 35 KT
BECOMING NW 5 KT.
WAVES 1 TO 2 FT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
TUE...SW WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF SNOW AND RAIN IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
ANZ537-200900-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
658 PM EST FRI DEC 19 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 25 KT WITH GUSTS TO 35 KT
BECOMING NW 10 TO
15 KT WITH GUSTS TO 25 KT LATE THIS EVENING AND OVERNIGHT. WAVES
3 FT...SUBSIDING TO 1 TO 2 FT AFTER MIDNIGHT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 2 FT.
SUN
W 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 10 TO 15 KT
BECOMING NW 5 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
MON NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
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.
ANZ530-200900-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
658 PM EST FRI DEC 19 2025
..GALE WARNING IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 20 TO 25 KT WITH GUSTS TO 40 KT
DIMINISHING TO
10 TO 15 KT WITH GUSTS TO 25 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT...
SUBSIDING TO 1 FT LATE.
SAT...SW WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT.
SAT NIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. 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. 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 SNOW.
TUE...SW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT. WAVES 1 FT. A
CHANCE OF SNOW IN THE MORNING.
WED...NW WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
ANZ531-200900-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
658 PM EST FRI DEC 19 2025
..GALE WARNING IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 30 KT
DIMINISHING TO 15 TO 20 KT WITH GUSTS TO
30 KT LATE THIS EVENING AND OVERNIGHT. WAVES 3 FT... SUBSIDING TO
2 FT LATE.
SAT...W WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT IN THE AFTERNOON.
WAVES 1 FT.
SAT NIGHT...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 2 FT.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 10 TO 15 KT. 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 SNOW AND RAIN IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
ANZ538-200900-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
658 PM EST FRI DEC 19 2025
..GALE WARNING IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 20 TO 25 KT WITH GUSTS TO 40 KT
DIMINISHING TO
10 TO 15 KT WITH GUSTS TO 20 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT...
SUBSIDING TO 1 FT AFTER MIDNIGHT.
SAT...SW WINDS 5 KT
BECOMING S LATE. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
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 SNOW IN THE MORNING.
WED
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ539-200900-
CHESTER RIVER TO QUEENSTOWN MD-
658 PM EST FRI DEC 19 2025
..GALE WARNING IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 20 TO 25 KT WITH GUSTS TO 40 KT
BECOMING NW
15 KT WITH GUSTS TO 25 KT AFTER MIDNIGHT. WAVES 4 FT...SUBSIDING TO
2 TO 3 FT AFTER MIDNIGHT.
SAT...W WINDS 5 TO 10 KT
BECOMING S IN THE AFTERNOON. WAVES 1 TO
2 FT.
SAT NIGHT...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 2 FT.
SUN NIGHT
NW WINDS 10 TO 15 KT. WAVES 2 FT.
MON
NW 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. 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.
ANZ532-200900-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
658 PM EST FRI DEC 19 2025
..GALE WARNING IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 30 KT
BECOMING NW 15 TO 20 KT WITH GUSTS TO
30 KT LATE THIS EVENING AND OVERNIGHT. WAVES 4 FT... SUBSIDING TO
2 FT AFTER MIDNIGHT.
SAT...W WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
SAT NIGHT...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 1 TO 2 FT.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT IN THE AFTERNOON.
WAVES 1 FT.
MON NIGHT
S WINDS 10 TO 15 KT. 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...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
ANZ540-200900-
EASTERN BAY-
658 PM EST FRI DEC 19 2025
..GALE WARNING IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 30 KT
BECOMING NW 15 TO 20 KT WITH GUSTS TO
30 KT LATE THIS EVENING AND OVERNIGHT. WAVES 4 FT... SUBSIDING TO
2 TO 3 FT AFTER MIDNIGHT. THIS EASTERN BAY, WAVES 2 TO 3 FT.
SAT...W WINDS 5 TO 10 KT
BECOMING S WITH GUSTS TO 20 KT IN THE
AFTERNOON. WAVES 1 FT.
SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. 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. WAVES 1 FT.
MON
NW 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. 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.
ANZ533-200900-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
658 PM EST FRI DEC 19 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 30 KT
BECOMING NW 15 TO 20 KT WITH GUSTS TO
30 KT LATE THIS EVENING AND OVERNIGHT. WAVES 4 FT... SUBSIDING TO
2 TO 3 FT AFTER MIDNIGHT.
SAT...W WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
SAT NIGHT...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 TO 2 FT.
SUN NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
MON
NW WINDS 10 TO 15 KT. 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 SNOW.
TUE...SW WINDS 10 TO 15 KT
BECOMING W. WAVES 1 TO 2 FT. A CHANCE
OF RAIN IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
ANZ541-200900-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
658 PM EST FRI DEC 19 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 30 KT
BECOMING NW 15 TO 20 KT WITH GUSTS TO
30 KT LATE THIS EVENING AND OVERNIGHT. WAVES 2 TO 3 FT. NEAR THE
MOUTH OF THE CHOPTANK, WAVES AROUND 4 FT...SUBSIDING TO 2 TO 3 FT
AFTER MIDNIGHT.
SAT...W WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT IN THE AFTERNOON.
WAVES 1 FT.
SAT NIGHT
S WINDS 15 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 15 TO 20 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT IN THE AFTERNOON.
WAVES 1 FT.
MON NIGHT
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE...SW WINDS 10 TO 15 KT
BECOMING W 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.
ANZ542-200900-
PATUXENT RIVER TO BROOMES ISLAND MD-
658 PM EST FRI DEC 19 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 15 TO 20 KT WITH GUSTS TO 35 KT
BECOMING NW
10 KT WITH GUSTS TO 20 KT AFTER MIDNIGHT. WAVES 1 FT.
SAT...W WINDS 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT.
SAT NIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. WAVES 1 FT.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NW WINDS 10 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.
TUE...SW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF SNOW IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
ANZ534-200900-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
658 PM EST FRI DEC 19 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...W WINDS 30 KT
BECOMING NW 15 TO 20 KT WITH GUSTS TO
30 KT LATE THIS EVENING AND OVERNIGHT. WAVES 4 FT... SUBSIDING TO
2 TO 3 FT AFTER MIDNIGHT.
SAT...W WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT IN THE AFTERNOON.
WAVES 2 FT.
SAT NIGHT...S WINDS 15 TO 20 KT
BECOMING SW LATE. GUSTS UP TO
25 KT. 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 3 FT.
MON
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
3 FT...SUBSIDING TO 1 FT IN THE AFTERNOON.
MON NIGHT
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE...SW WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES 2 TO
3 FT. A CHANCE OF RAIN IN THE MORNING.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 TO 2 FT.
ANZ543-200900-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
658 PM EST FRI DEC 19 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SATURDAY
TONIGHT...NW WINDS 30 KT
DIMINISHING TO 15 TO 20 KT WITH GUSTS TO
30 KT LATE THIS EVENING AND OVERNIGHT. WAVES 2 TO 3 FT.
SAT...NW WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT IN THE
AFTERNOON. WAVES 1 FT.
SAT NIGHT...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 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. WAVES 1 FT.
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 AFTER MIDNIGHT. WAVES 1 FT.
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