854
FZUS51 KLWX 192358
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
758 PM EDT THU MAR 19 2026
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.
ANZ500-200800-
758 PM EDT THU MAR 19 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL REMAIN IN PLACE THROUGH FRIDAY AFTERNOON BEFORE A
QUICK MOVING CLIPPER SYSTEM TRACKS ACROSS THE WATERS BY FRIDAY
NIGHT. ANOTHER COLD FRONT PUSHES THROUGH THE REGION LATE IN THE
WEEKEND BEFORE HIGH PRESSURE APPROACHES FROM THE WEST EARLY NEXT
WEEK. SMALL CRAFT ADVISORIES MAY BE NEEDED SATURDAY, AND AGAIN
SUNDAY INTO MONDAY.
ANZ535-200800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
758 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
S WINDS 5 TO 10 KT. GUSTS UP TO 25 KT IN THE AFTERNOON. WAVES
1 FT.
FRI NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 FT. NUMEROUS SHOWERS.
SAT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF RAIN.
MON
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
TUE
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ536-200800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
758 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
NUMEROUS SHOWERS.
SAT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF RAIN.
MON
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN IN
THE MORNING.
TUE...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
ANZ537-200800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
758 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT...S WINDS 10 KT
DIMINISHING TO 5 KT LATE. WAVES 1 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
NUMEROUS SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 15 TO 20 KT. WAVES 2 FT.
MON...NW WINDS 15 TO 20 KT
BECOMING N. WAVES 2 TO 3 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING NE 5 KT IN THE AFTERNOON, THEN
BECOMING S. WAVES 1 TO 2 FT.
ANZ530-200800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
758 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 KT LATE. WAVES 1 TO 2 FT. NUMEROUS SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF RAIN.
MON
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN IN
THE MORNING.
TUE...NW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
ANZ531-200800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
758 PM EDT THU MAR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT THIS EVENING. WAVES
1 TO 2 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
FRI NIGHT...SW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT LATE.
GUSTS UP TO 20 KT. WAVES 2 FT. NUMEROUS SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN.
MON
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF RAIN IN
THE MORNING.
TUE...N WINDS 10 TO 15 KT
BECOMING NW 5 KT IN THE AFTERNOON, THEN
BECOMING S. WAVES 1 TO 2 FT.
ANZ538-200800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
758 PM EDT THU MAR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT THIS EVENING. WAVES
1 FT OR LESS.
FRI
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT OR LESS.
FRI NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 FT. NUMEROUS SHOWERS.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF RAIN.
MON
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
TUE...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
ANZ539-200800-
CHESTER RIVER TO QUEENSTOWN MD-
758 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
FRI NIGHT...SW WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT LATE.
GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. NUMEROUS SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF RAIN.
MON
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF RAIN IN
THE MORNING.
TUE...NW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
ANZ532-200800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
758 PM EDT THU MAR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 5 TO 10 KT. GUSTS UP TO 25 KT. WAVES 1 TO 2 FT.
FRI...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT
BUILDING TO 3 FT IN THE AFTERNOON.
FRI NIGHT...SW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT LATE.
GUSTS UP TO 20 KT. WAVES 2 TO 3 FT. NUMEROUS SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN.
MON
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF RAIN IN
THE MORNING.
TUE...N WINDS 10 TO 15 KT
BECOMING NE 5 KT IN THE AFTERNOON, THEN
BECOMING S 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ540-200800-
EASTERN BAY-
758 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT LATE.
GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. NUMEROUS SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN.
MON
NW WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN IN THE
MORNING.
TUE...N WINDS 10 TO 15 KT
DIMINISHING TO 5 KT IN THE AFTERNOON,
THEN BECOMING S. WAVES 1 FT.
ANZ533-200800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
758 PM EDT THU MAR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 10 KT. GUSTS UP TO 20 KT UNTIL EARLY MORNING.
WAVES 1 TO 2 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT LATE.
GUSTS UP TO 20 KT. WAVES 2 FT. NUMEROUS SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN.
MON
NW WINDS 15 TO 20 KT. WAVES 3 FT. A CHANCE OF RAIN IN THE
MORNING.
TUE...N WINDS 10 TO 15 KT
BECOMING NE 5 TO 10 KT IN THE
AFTERNOON, THEN BECOMING S 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ541-200800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
758 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT LATE.
GUSTS UP TO 20 KT. WAVES 2 FT. NUMEROUS SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN.
MON
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF RAIN IN
THE MORNING.
TUE...N WINDS 10 TO 15 KT
BECOMING S. WAVES 1 TO 2 FT.
ANZ542-200800-
PATUXENT RIVER TO BROOMES ISLAND MD-
758 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING AND
AFTERNOON. WAVES 1 FT.
FRI NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
NUMEROUS SHOWERS.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF RAIN.
MON...NW WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
ANZ534-200800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
758 PM EDT THU MAR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT
BUILDING TO 3 FT IN THE AFTERNOON.
FRI NIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT LATE.
GUSTS UP TO 25 KT. WAVES 3 FT. NUMEROUS SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
MON...NW WINDS 15 TO 20 KT
BECOMING N 20 TO 25 KT. WAVES 3 FT.
TUE...N WINDS 15 TO 20 KT
BECOMING NE 5 TO 10 KT IN THE
AFTERNOON, THEN BECOMING S 10 TO 15 KT. WAVES 2 TO 3 FT...SUBSIDING
TO 1 TO 2 FT.
ANZ543-200800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
758 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
TONIGHT
S WINDS 10 KT. WAVES 1 FT.
FRI
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
NUMEROUS SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 15 TO 20 KT. WAVES 2 FT.
MON...NW WINDS 15 TO 20 KT
BECOMING N. WAVES 2 FT.
TUE...N WINDS 15 TO 20 KT
BECOMING NW 5 TO 10 KT IN THE
AFTERNOON, THEN BECOMING S 10 TO 15 KT. WAVES 1 TO 2 FT.
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