873
FZUS51 KLWX 100628
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
228 AM EDT FRI APR 10 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.
ANZ500-102000-
228 AM EDT FRI APR 10 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL PROGRESS OFFSHORE THROUGH TODAY. A COLD FRONT
WILL CROSS THE WATERS EARLY SATURDAY BEFORE THE BOUNDARY DISSIPATES
TO OUR SOUTH. HIGH PRESSURE WILL BUILD QUICKLY NORTH AND EAST OF THE
AREA SUNDAY AND MONDAY. SMALL CRAFT ADVISORIES MAY BE NEEDED LATE
SUNDAY THROUGH MONDAY.
ANZ535-102000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
228 AM EDT FRI APR 10 2026
OVERNIGHT
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
BECOMING NW LATE. WAVES 1 FT.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 10 KT. WAVES 1 FT.
MON...SW WINDS 10 TO 15 KT
DIMINISHING TO AROUND 5 KT AFTER
MIDNIGHT. WAVES 1 FT.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-102000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
228 AM EDT FRI APR 10 2026
OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. PATCHY FOG. VSBY
1 TO 3 NM.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 TO 3 NM.
FRI NIGHT...S WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 10 KT. WAVES 1 TO 2 FT.
MON
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-102000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
228 AM EDT FRI APR 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...
OVERNIGHT
S WINDS 5 KT. WAVES FLAT. PATCHY FOG. VSBY 1 TO 3 NM.
FRI
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT LATE. WAVES 1 FT OR
LESS. PATCHY FOG. VSBY 1 TO 3 NM.
FRI NIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ530-102000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
228 AM EDT FRI APR 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...
OVERNIGHT
SE WINDS 5 KT. WAVES FLAT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 TO 3 NM.
FRI NIGHT...S WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT.
SAT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 10 KT. WAVES 1 FT.
MON...SW WINDS 10 TO 15 KT
DIMINISHING TO AROUND 5 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ531-102000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
228 AM EDT FRI APR 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...
OVERNIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. PATCHY FOG. VSBY 1 TO
3 NM.
FRI NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 KT LATE. WAVES 1 TO 2 FT.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ538-102000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
228 AM EDT FRI APR 10 2026
OVERNIGHT
S WINDS 5 KT. WAVES FLAT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. PATCHY FOG. VSBY 1 TO
3 NM.
FRI NIGHT...S WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS 5 KT. WAVES FLAT.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 10 KT. WAVES 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ539-102000-
CHESTER RIVER TO QUEENSTOWN MD-
228 AM EDT FRI APR 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...
OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. PATCHY FOG. VSBY
1 TO 3 NM.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. PATCHY FOG. VSBY 1 TO
3 NM.
FRI NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT LATE. WAVES 1 FT.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT OR LESS.
SUN NIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON...SW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
TUE
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ532-102000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
228 AM EDT FRI APR 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...
OVERNIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 TO
3 NM.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
PATCHY FOG. VSBY 1 TO 3 NM.
FRI NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT LATE. WAVES 2 FT.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 3 FT.
MON...SW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ540-102000-
EASTERN BAY-
228 AM EDT FRI APR 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...
OVERNIGHT
SE WINDS 5 KT. WAVES FLAT. PATCHY FOG. VSBY 1 TO 3 NM.
FRI
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT OR LESS. PATCHY FOG. VSBY 1 TO 3 NM.
FRI NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 KT LATE. WAVES 1 FT.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT OR LESS.
SUN NIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ533-102000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
228 AM EDT FRI APR 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...
OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. PATCHY FOG. VSBY
1 TO 3 NM.
FRI...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES FLAT
BUILDING TO 2 FT IN THE AFTERNOON. PATCHY FOG. VSBY 1 TO 3 NM.
FRI NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT LATE. WAVES 2 FT.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 3 FT.
MON...SW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ541-102000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
228 AM EDT FRI APR 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...
OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. PATCHY FOG. VSBY
1 TO 3 NM.
FRI
S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS. PATCHY FOG. VSBY
1 TO 3 NM.
FRI NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT LATE. WAVES 1 FT.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON...SW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ542-102000-
PATUXENT RIVER TO BROOMES ISLAND MD-
228 AM EDT FRI APR 10 2026
OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. PATCHY FOG. VSBY
1 TO 3 NM.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 TO 3 NM.
FRI NIGHT...S WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...E WINDS 5 KT
BECOMING SE 10 TO 15 KT WITH GUSTS TO 20 KT IN
THE AFTERNOON. WAVES 1 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON...SW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
TUE
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ534-102000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
228 AM EDT FRI APR 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...
OVERNIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 TO
3 NM.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT OR LESS.
PATCHY FOG. VSBY 1 TO 3 NM.
FRI NIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 2 FT.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON
SW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
TUE...SW WINDS 10 TO 15 KT
BECOMING S. WAVES 1 TO 2 FT.
ANZ543-102000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
228 AM EDT FRI APR 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY AFTERNOON...
OVERNIGHT
SE WINDS 5 KT. WAVES FLAT. PATCHY FOG. VSBY 1 TO 3 NM.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. PATCHY FOG. VSBY 1 NM
OR LESS.
FRI NIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 1 FT.
SAT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
TUE
SW WINDS 10 TO 15 KT. WAVES 1 FT.
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