442
FZUS51 KLWX 192057
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 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-
457 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-
457 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
REST OF THIS AFTERNOON
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. GUSTS UP TO 25 KT IN THE AFTERNOON. WAVES
1 FT. SCATTERED SHOWERS.
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
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
MON
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ536-200800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT.
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 10 TO 15 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF RAIN AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN IN
THE MORNING.
ANZ537-200800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. 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 10 TO 15 KT
BECOMING SW 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
MON...NW WINDS 15 TO 20 KT
BECOMING N. WAVES 2 TO 3 FT.
ANZ530-200800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
REST OF THIS AFTERNOON
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SCATTERED SHOWERS.
FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. 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 OR LESS.
SUN
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
MON
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN IN
THE MORNING.
ANZ531-200800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 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...
REST OF THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SCATTERED SHOWERS.
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
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...S WINDS 10 TO 15 KT
BECOMING SW 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF RAIN AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF RAIN IN
THE MORNING.
ANZ538-200800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 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...
REST OF THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TONIGHT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE 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. SCATTERED SHOWERS.
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
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
MON
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ539-200800-
CHESTER RIVER TO QUEENSTOWN MD-
457 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT.
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.
SCATTERED SHOWERS.
FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS 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 10 TO 15 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF RAIN AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF RAIN IN
THE MORNING.
ANZ532-200800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 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...
REST OF THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
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. SCATTERED SHOWERS.
FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS 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 10 TO 15 KT
BECOMING SW 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF RAIN AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF RAIN IN
THE MORNING.
ANZ540-200800-
EASTERN BAY-
457 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT.
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.
SCATTERED SHOWERS.
FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS 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 10 TO 15 KT
BECOMING SW 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF RAIN AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ533-200800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 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...
REST OF THIS AFTERNOON
SE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
S WINDS 10 TO 15 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
SW WINDS 10 TO 15 KT WITH GUSTS 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
INCREASING TO 15 TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF RAIN AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 3 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ541-200800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT.
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
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
INCREASING TO 15 TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF RAIN AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF RAIN IN
THE MORNING.
ANZ542-200800-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 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. A CHANCE OF RAIN AFTER
MIDNIGHT.
MON...NW WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
ANZ534-200800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 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...
REST OF THIS AFTERNOON
SE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 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
SW WINDS 15 TO 20 KT WITH GUSTS 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
INCREASING TO 15 TO 20 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT AFTER MIDNIGHT.
MON...NW WINDS 15 TO 20 KT
BECOMING N 20 TO 25 KT. WAVES 3 FT.
ANZ543-200800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 PM EDT THU MAR 19 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH LATE
FRIDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
S WINDS 5 TO 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 10 TO 15 KT
BECOMING SW 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
MON...NW WINDS 15 TO 20 KT
BECOMING N. WAVES 2 FT.
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