256
FZUS51 KLWX 191158
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
757 AM EDT SUN APR 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.
ANZ500-192000-
757 AM EDT SUN APR 19 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT WILL MOVE OFFSHORE THIS MORNING. A SECONDARY COLD FRONT
WILL FOLLOW IN ITS WAKE TONIGHT INTO MONDAY MORNING. HIGH PRESSURE
WILL BUILD IN BEHIND THESE FRONTS LATE MONDAY THROUGH TUESDAY.
ANOTHER FRONT LOOKS TO DROP IN FROM THE NORTH WEDNESDAY. SMALL CRAFT
ADVISORIES MAY BE NEEDED MONDAY MORNING THROUGH MONDAY EVENING IN
NORTHWEST FLOW, AND LATE TUESDAY INTO WEDNESDAY IN SOUTH TO
SOUTHWEST FLOW.
ANZ535-192000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...NW WINDS 15 TO 20 KT
DIMINISHING TO 10 KT THIS AFTERNOON.
GUSTS UP TO 30 KT. WAVES 1 TO 2 FT. SHOWERS, MAINLY THIS MORNING.
TONIGHT
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
W WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED...SW WINDS 5 TO 10 KT
BECOMING NW. WAVES 1 FT. A CHANCE OF
SHOWERS.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-192000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT THIS AFTERNOON. WAVES 3 FT...SUBSIDING TO 1 FT THIS AFTERNOON.
SHOWERS, MAINLY THIS MORNING.
TONIGHT
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING
TO 5 KT AFTER MIDNIGHT. WAVES 1 FT.
TUE
W WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED...SW WINDS 5 TO 10 KT
BECOMING NW. WAVES 1 FT. A CHANCE OF
SHOWERS.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT.
ANZ537-192000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...N WINDS 15 KT WITH GUSTS TO 20 KT
BECOMING NW 20 TO 25 KT
WITH GUSTS TO 30 KT LATE THIS MORNING AND EARLY AFTERNOON, THEN
DIMINISHING TO 15 KT WITH GUSTS TO 20 KT LATE. WAVES 2 TO 3 FT.
SCATTERED SHOWERS THIS MORNING, THEN SHOWERS THIS AFTERNOON.
TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES
1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED...SW WINDS 10 TO 15 KT
BECOMING NW 5 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
THU
E WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ530-192000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...NW WINDS 10 KT WITH GUSTS TO 20 KT
INCREASING TO 15 TO
20 KT WITH GUSTS TO 30 KT LATE THIS MORNING AND AFTERNOON. WAVES
1 TO 2 FT. SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
W WINDS AROUND 5 KT. WAVES FLAT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED...W WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT OR
LESS. A CHANCE OF SHOWERS.
THU
W WINDS AROUND 5 KT. WAVES FLAT.
ANZ531-192000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...NW WINDS 15 TO 20 KT. GUSTS UP TO 20 KT
INCREASING TO
30 KT LATE THIS MORNING AND EARLY AFTERNOON, THEN DIMINISHING TO
20 KT LATE. WAVES 2 TO 3 FT. SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE...N WINDS 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED...W WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 TO
2 FT...SUBSIDING TO FLAT AFTER MIDNIGHT. A CHANCE OF SHOWERS.
THU
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ538-192000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 TO 2 FT.
SHOWERS, MAINLY THIS MORNING.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 KT AFTER MIDNIGHT. WAVES 1 FT OR LESS.
MON
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 FT.
MON NIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING N
5 KT AFTER MIDNIGHT. WAVES 1 FT.
TUE
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED...W WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT OR
LESS. A CHANCE OF SHOWERS.
THU
SW WINDS AROUND 5 KT. WAVES FLAT.
ANZ539-192000-
CHESTER RIVER TO QUEENSTOWN MD-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY
NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT LATE THIS MORNING
AND EARLY AFTERNOON...DIMINISHING TO 20 KT. WAVES 2 TO 3 FT.
NUMEROUS SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
WED...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS.
THU
SW WINDS 5 KT. WAVES FLAT.
ANZ532-192000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...NW WINDS 15 KT WITH GUSTS TO 20 KT
INCREASING TO 20 TO
25 KT WITH GUSTS TO 30 KT LATE THIS MORNING AND EARLY AFTERNOON,
THEN DIMINISHING TO 15 KT WITH GUSTS TO 20 KT LATE. WAVES 2 TO 3 FT.
SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES
1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED...SW WINDS 10 TO 15 KT
BECOMING NW 5 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
THU
E WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ540-192000-
EASTERN BAY-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...NW WINDS 15 TO 20 KT. GUSTS UP TO 20 KT
INCREASING TO
30 KT LATE THIS MORNING AND EARLY AFTERNOON, THEN DIMINISHING TO
20 KT LATE. WAVES 1 TO 2 FT. PATCHY FOG THIS MORNING. SHOWERS. VSBY
1 TO 3 NM THIS MORNING.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED...SW WINDS 10 TO 15 KT...BECOMING NW 5 KT. WAVES 1 TO 2 FT
SUBSIDING TO FLAT AFTER MIDNIGHT. A CHANCE OF SHOWERS.
THU
SW WINDS AROUND 5 KT. WAVES FLAT.
ANZ533-192000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...NW WINDS 15 KT WITH GUSTS TO 20 KT
INCREASING TO 20 TO
25 KT WITH GUSTS TO 30 KT LATE THIS MORNING AND EARLY AFTERNOON,
THEN DIMINISHING TO 15 KT WITH GUSTS TO 20 KT LATE. WAVES 2 TO 3 FT.
SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES
1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED...SW WINDS 10 TO 15 KT
BECOMING NW 5 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
THU
E WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ541-192000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...N WINDS 15 KT WITH GUSTS TO 20 KT
BECOMING NW 20 TO 25 KT
WITH GUSTS TO 30 KT LATE THIS MORNING AND EARLY AFTERNOON, THEN
DIMINISHING TO 15 KT WITH GUSTS TO 20 KT LATE. WAVES 2 TO 3 FT.
PATCHY FOG THIS MORNING. SHOWERS. VSBY 1 TO 3 NM THIS MORNING.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SW IN THE AFTERNOON. WAVES 1 FT
OR LESS.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED...SW WINDS 10 TO 15 KT
BECOMING NW 5 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
THU
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ542-192000-
PATUXENT RIVER TO BROOMES ISLAND MD-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...NW WINDS 10 KT WITH GUSTS TO 20 KT
INCREASING TO 15 TO
20 KT WITH GUSTS TO 30 KT LATE THIS MORNING AND EARLY AFTERNOON,
THEN DIMINISHING TO 10 KT WITH GUSTS TO 20 KT LATE. WAVES 1 TO 2 FT.
SHOWERS.
TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 10 TO 15 KT. WAVES 1 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES
1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
WED...W WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS.
THU
E WINDS AROUND 5 KT. WAVES 1 FT.
ANZ534-192000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...NW WINDS 15 KT WITH GUSTS TO 20 KT
INCREASING TO 20 TO
25 KT WITH GUSTS TO 30 KT LATE THIS MORNING AND AFTERNOON. WAVES
3 FT. SCATTERED SHOWERS THIS MORNING, THEN SHOWERS THIS AFTERNOON.
TONIGHT...NW WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT LATE. WAVES
1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
MON NIGHT
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
WED...SW WINDS 15 TO 20 KT
DIMINISHING TO 5 KT IN THE EVENING,
THEN BECOMING NW AFTER MIDNIGHT. WAVES 2 TO 3 FT...SUBSIDING TO
1 FT. A CHANCE OF SHOWERS.
THU...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
ANZ543-192000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
757 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...NW WINDS 15 KT WITH GUSTS TO 20 KT
INCREASING TO 20 TO
25 KT WITH GUSTS TO 30 KT LATE THIS MORNING AND AFTERNOON. WAVES
2 TO 3 FT. SCATTERED SHOWERS THIS MORNING, THEN SHOWERS THIS
AFTERNOON.
TONIGHT...NW WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT LATE. WAVES
1 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING SW 5 KT IN THE AFTERNOON.
WAVES 1 FT.
TUE NIGHT
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
WED...SW WINDS 15 TO 20 KT
BECOMING W 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
THU...NW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
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