754
FZUS51 KLWX 190857
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 AM 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.
ANZ500-192300-
457 AM 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 ON FRIDAY EVENING INTO
THE SATURDAY MORNING, AND AGAIN SUNDAY INTO MONDAY.
ANZ535-192300-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
S WINDS AROUND 5 KT. WAVES 1 FT.
TONIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN...SW WINDS 5 TO 10 KT
BECOMING NW. WAVES 1 FT. A CHANCE OF
RAIN THROUGH THE NIGHT.
MON...N WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF RAIN IN THE MORNING.
ANZ536-192300-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
MON...N WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF RAIN THROUGH THE DAY.
ANZ537-192300-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
SE WINDS 5 KT. WAVES FLAT.
TODAY
SE WINDS 5 TO 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 AFTERNOON. WAVES
1 FT OR LESS.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF 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
BECOMING SW 15 TO 20 KT IN THE EVENING,
THEN BECOMING NW AFTER MIDNIGHT. WAVES 1 FT...BUILDING TO 3 FT AFTER
MIDNIGHT. A CHANCE OF RAIN THROUGH THE NIGHT.
MON
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF RAIN
THROUGH THE DAY.
ANZ530-192300-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
SE WINDS 5 KT. WAVES FLAT.
TODAY
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
FRI
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN...SW WINDS 5 TO 10 KT
BECOMING NW 15 TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
MON...N WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF RAIN IN THE MORNING.
ANZ531-192300-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...S WINDS AROUND 5 KT
INCREASING TO 10 TO 15 KT WITH GUSTS TO
20 KT IN THE AFTERNOON. WAVES FLAT...BUILDING TO 2 FT IN THE
AFTERNOON.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS LIKELY.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...S WINDS 5 TO 10 KT
BECOMING NW 15 TO 20 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT AFTER MIDNIGHT. A CHANCE OF RAIN THROUGH THE
NIGHT.
MON...N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT
SUBSIDING TO 1 FT
AFTER MIDNIGHT. A CHANCE OF RAIN IN THE MORNING.
ANZ538-192300-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
SE WINDS 5 KT. WAVES FLAT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI...NW WINDS AROUND 5 KT
BECOMING S IN THE AFTERNOON. WAVES
1 FT OR LESS.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
W WINDS AROUND 5 KT. WAVES FLAT.
SUN...S WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT. WAVES 1 FT OR
LESS. A CHANCE OF RAIN THROUGH THE NIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ539-192300-
CHESTER RIVER TO QUEENSTOWN MD-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT OR LESS.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...S WINDS 5 TO 10 KT...BECOMING NW 15 TO 20 KT. WAVES 1 FT
BUILDING TO 3 FT AFTER MIDNIGHT. A CHANCE OF RAIN THROUGH THE NIGHT.
MON...N WINDS 15 TO 20 KT...DIMINISHING TO 10 KT. WAVES 2 TO 3 FT
SUBSIDING TO 1 FT. A CHANCE OF RAIN IN THE MORNING.
ANZ532-192300-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
SE WINDS 10 KT. WAVES 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...SW WINDS 5 KT
BECOMING S 10 TO 15 KT WITH GUSTS TO 20 KT IN
THE AFTERNOON. WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS LIKELY.
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 KT
INCREASING TO 10 TO 15 KT IN THE AFTERNOON,
THEN BECOMING NE 15 TO 20 KT IN THE EVENING... BECOMING N 20 TO
25 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT... BUILDING TO 3 FT AFTER
MIDNIGHT. A CHANCE OF RAIN THROUGH THE NIGHT.
MON...N WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT. WAVES 2 TO
3 FT. A CHANCE OF RAIN IN THE MORNING.
ANZ540-192300-
EASTERN BAY-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI...S WINDS 5 KT
INCREASING TO 10 TO 15 KT WITH GUSTS TO 20 KT
IN THE AFTERNOON. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS LIKELY.
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
BECOMING NE 15 TO 20 KT IN THE EVENING,
THEN BECOMING NW AFTER MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF RAIN
THROUGH THE NIGHT.
MON
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN IN THE
MORNING.
ANZ533-192300-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
SE WINDS 10 KT. WAVES 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF 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
INCREASING TO 20 TO 25 KT IN THE
EVENING, THEN BECOMING N AFTER MIDNIGHT. WAVES 1 TO 2 FT...BUILDING
TO 4 FT AFTER MIDNIGHT. A CHANCE OF RAIN THROUGH THE NIGHT.
MON...N WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT. WAVES
3 FT...SUBSIDING TO 2 FT. A CHANCE OF RAIN THROUGH THE DAY.
ANZ541-192300-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF 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
BECOMING SE 15 TO 20 KT IN THE EVENING,
THEN BECOMING N 20 TO 25 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT...
BUILDING TO 3 FT AFTER MIDNIGHT. A CHANCE OF RAIN THROUGH THE NIGHT.
MON...N WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT. WAVES 2 TO
3 FT. A CHANCE OF RAIN THROUGH THE DAY.
ANZ542-192300-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN...SW WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF RAIN THROUGH THE NIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN THROUGH THE
DAY.
ANZ534-192300-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
SAT...W WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...S WINDS 5 TO 10 KT
BECOMING SW 15 TO 20 KT IN THE EVENING,
THEN BECOMING NW 20 TO 25 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT...
BUILDING TO 4 FT AFTER MIDNIGHT. A CHANCE OF RAIN THROUGH THE NIGHT.
MON
N WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF RAIN THROUGH THE
DAY.
ANZ543-192300-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 AM EDT THU MAR 19 2026
REST OF THE OVERNIGHT
SE WINDS 5 KT. WAVES FLAT.
TODAY
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SAT...W WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT IN THE
AFTERNOON. 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 IN THE
EVENING, THEN BECOMING NW 20 TO 25 KT AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
MON...N WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT. WAVES 2 FT.
A CHANCE OF RAIN THROUGH THE DAY.
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