745
FZUS51 KLWX 192358
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
757 PM 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.
ANZ500-200800-
757 PM EDT SUN APR 19 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A SECONDARY COLD FRONT WILL PASS THROUGH TONIGHT INTO MONDAY
MORNING. HIGH PRESSURE WILL BUILD IN LATE MONDAY THROUGH TUESDAY.
ANOTHER FRONT LOOKS TO DROP IN FROM THE NORTH WEDNESDAY. SMALL CRAFT
ADVISORIES MAY BE NEEDED LATE TUESDAY INTO WEDNESDAY IN SOUTH TO
SOUTHWEST FLOW.
ANZ535-200800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...NW WINDS 10 KT WITH GUSTS TO 20 KT
BECOMING SW AFTER
MIDNIGHT. WAVES 1 FT. SCATTERED SPRINKLES AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SCATTERED SPRINKLES.
MON NIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT.
FRI
SE WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-200800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 FT. SCATTERED SPRINKLES AFTER
MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SCATTERED SPRINKLES.
MON NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT.
FRI
S WINDS AROUND 5 KT. WAVES 1 FT.
ANZ537-200800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH LATE
MONDAY NIGHT...
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW
LATE. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SCATTERED SPRINKLES.
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 WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
WED NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...N WINDS 5 KT
BECOMING SE. WAVES 1 FT OR LESS.
ANZ530-200800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH
MONDAY EVENING...
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. SCATTERED SPRINKLES
AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SCATTERED SPRINKLES.
MON NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 FT.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
NW WINDS AROUND 5 KT. WAVES FLAT.
FRI
SE WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
ANZ531-200800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW
LATE. WAVES 1 TO 2 FT. SCATTERED SPRINKLES AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SCATTERED SPRINKLES.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
WED
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
WED NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
W WINDS AROUND 5 KT. WAVES FLAT.
FRI
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ538-200800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 FT OR LESS. SCATTERED SPRINKLES
AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SCATTERED SPRINKLES.
MON NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 FT.
TUE...N WINDS 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT OR
LESS.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
W WINDS AROUND 5 KT. WAVES FLAT.
FRI
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ539-200800-
CHESTER RIVER TO QUEENSTOWN MD-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...NW WINDS 15 KT WITH GUSTS TO 20 KT
BECOMING SW 5 TO
10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SCATTERED SPRINKLES AFTER
MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SCATTERED SPRINKLES.
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.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
W WINDS AROUND 5 KT. WAVES FLAT.
FRI...E WINDS 5 KT
BECOMING SE. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
ANZ532-200800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH LATE
MONDAY NIGHT...
TONIGHT...NW WINDS 15 KT WITH GUSTS TO 20 KT
BECOMING SW AFTER
MIDNIGHT. WAVES 1 TO 2 FT. SCATTERED SPRINKLES AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 2 FT. SCATTERED SPRINKLES.
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 WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
N WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...NE WINDS 5 KT
BECOMING SE. WAVES 1 FT OR LESS.
ANZ540-200800-
EASTERN BAY-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...NW WINDS 15 KT WITH GUSTS TO 20 KT
BECOMING SW 5 TO
10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SCATTERED SPRINKLES AFTER
MIDNIGHT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SCATTERED SPRINKLES.
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 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
W WINDS AROUND 5 KT. WAVES FLAT.
FRI...E WINDS 5 KT
BECOMING SE. WAVES 1 FT OR LESS.
ANZ533-200800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH LATE
MONDAY NIGHT...
TONIGHT...NW WINDS 15 KT WITH GUSTS TO 20 KT
BECOMING SW AFTER
MIDNIGHT. WAVES 1 TO 2 FT. SCATTERED SPRINKLES AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
SCATTERED SPRINKLES.
MON NIGHT
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES 1 TO
2 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
N WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...NE WINDS 5 KT
BECOMING SE. WAVES 1 FT OR LESS.
ANZ541-200800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH LATE
MONDAY NIGHT...
TONIGHT...NW WINDS 15 KT WITH GUSTS TO 20 KT
BECOMING SW AFTER
MIDNIGHT. WAVES 1 TO 2 FT. SCATTERED SPRINKLES AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 2 FT. SCATTERED SPRINKLES.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SW 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 WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
WED NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI...NW WINDS 5 KT
BECOMING SE. WAVES 1 FT OR LESS.
ANZ542-200800-
PATUXENT RIVER TO BROOMES ISLAND MD-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH
MONDAY EVENING...
TONIGHT...NW WINDS 10 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SCATTERED SPRINKLES.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES
1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE OF
SHOWERS.
WED NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
THU
N WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
SE WINDS AROUND 5 KT. WAVES 1 FT.
ANZ534-200800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH LATE
MONDAY NIGHT...
TONIGHT...NW WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 2 TO 3 FT...SUBSIDING TO 1 FT LATE.
MON
NW WINDS 15 TO 20 KT. GUSTS UP TO 25 KT. WAVES 3 FT.
SCATTERED SPRINKLES.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 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 WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
WED
SW WINDS 15 TO 20 KT. GUSTS UP TO 25 KT IN THE MORNING. WAVES
2 TO 3 FT. A CHANCE OF SHOWERS.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
FRI...NE WINDS 5 TO 10 KT
BECOMING SE 10 TO 15 KT. WAVES 1 TO
2 FT.
ANZ543-200800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
757 PM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT MONDAY THROUGH LATE
MONDAY NIGHT...
TONIGHT...NW WINDS 10 TO 15 KT
BECOMING S LATE. GUSTS UP TO
20 KT. WAVES 1 TO 2 FT.
MON...W WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT IN THE LATE
MORNING AND AFTERNOON. GUSTS UP TO 25 KT. WAVES 2 FT. SCATTERED
SPRINKLES.
MON NIGHT
N WINDS 15 TO 20 KT. GUSTS UP TO 25 KT UNTIL EARLY
MORNING. WAVES 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 WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT.
WED...SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
DIMINISHING TO
5 TO 10 KT IN THE AFTERNOON. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
WED NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU...NW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
FRI
S WINDS 10 TO 15 KT. WAVES 1 FT.
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