470
FZUS51 KLWX 051200
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
800 AM EDT SUN APR 5 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.
ANZ500-052000-
800 AM EDT SUN APR 5 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A STRONG COLD FRONT WILL MOVE OVER THE WATERS TODAY. A REINFORCING
COLD FRONT WILL MOVE THROUGH ON TUESDAY BEFORE HIGH PRESSURE BUILDS
OVERHEAD ON WEDNESDAY. SMALL CRAFT ADVISORIES WILL LIKELY BE NEEDED
ON TUESDAY.
ANZ535-052000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY...SW WINDS 10 TO 15 KT
BECOMING NW LATE. GUSTS UP TO 25 KT.
WAVES 1 FT. SHOWERS. SCATTERED TSTMS EARLY THIS MORNING, THEN
ISOLATED TSTMS THIS AFTERNOON.
TONIGHT
NW WINDS 5 TO 10 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS AROUND 5 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-052000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY...SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING W
10 KT LATE. WAVES 1 TO 2 FT. SCATTERED TSTMS. SCATTERED SHOWERS
EARLY THIS MORNING, THEN SHOWERS THIS AFTERNOON.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED
E WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-052000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING
TODAY...SW WINDS 15 TO 20 KT
BECOMING W LATE. GUSTS UP TO 25 KT.
WAVES 2 FT. ISOLATED SHOWERS AND TSTMS EARLY THIS MORNING, THEN
SHOWERS AND SCATTERED TSTMS THIS AFTERNOON.
TONIGHT...NW WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT WITH
GUSTS TO 25 KT IN THE LATE EVENING AND OVERNIGHT. WAVES 2 TO 3 FT.
MON...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW 5 KT
LATE. WAVES 1 TO 2 FT.
MON NIGHT...S WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT.
TUE
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE NIGHT
N WINDS 10 TO 15 KT. WAVES 2 FT.
WED...NE WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 TO
2 FT.
THU
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-052000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY...SW WINDS 20 KT
BECOMING W 10 TO 15 KT THIS AFTERNOON.
GUSTS UP TO 25 KT. WAVES 1 TO 2 FT. SHOWERS WITH ISOLATED TSTMS.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
MON
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE NIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT OR LESS.
WED
SE WINDS AROUND 5 KT. WAVES FLAT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-052000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY...SW WINDS 20 KT
BECOMING W 10 TO 15 KT THIS AFTERNOON.
GUSTS UP TO 25 KT. WAVES 2 TO 3 FT...SUBSIDING TO 1 FT LATE.
ISOLATED TSTMS. SHOWERS.
TONIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING W LATE. GUSTS UP TO 20 KT.
WAVES 1 TO 2 FT.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT.
WED...E WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-052000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY...SW WINDS 15 KT
BECOMING W THIS AFTERNOON. GUSTS UP TO
20 KT. WAVES 1 FT. SHOWERS WITH ISOLATED TSTMS.
TONIGHT
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-052000-
CHESTER RIVER TO QUEENSTOWN MD-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY...SW WINDS 15 TO 20 KT
BECOMING W 10 KT LATE. GUSTS UP TO
25 KT. WAVES 1 TO 2 FT. ISOLATED TSTMS. SCATTERED SHOWERS EARLY THIS
MORNING, THEN SHOWERS THIS AFTERNOON.
TONIGHT
NW WINDS 15 TO 20 KT. GUSTS UP TO 25 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT LATE. GUSTS UP
TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
TUE NIGHT
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED...E WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-052000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY...SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING W
10 KT LATE. WAVES 3 FT...SUBSIDING TO 1 FT LATE. ISOLATED TSTMS.
SCATTERED SHOWERS EARLY THIS MORNING, THEN SHOWERS THIS AFTERNOON.
TONIGHT
NW WINDS 15 TO 20 KT. GUSTS UP TO 25 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING W LATE. GUSTS UP TO 20 KT.
WAVES 1 TO 2 FT.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED...E WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
THU
SE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-052000-
EASTERN BAY-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY...SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING W
10 KT LATE. WAVES 1 TO 2 FT. ISOLATED TSTMS. SCATTERED SHOWERS EARLY
THIS MORNING, THEN SHOWERS THIS AFTERNOON.
TONIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT LATE. GUSTS UP
TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE NIGHT
N WINDS 10 TO 15 KT. WAVES 1 FT.
WED...E WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-052000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING
TODAY...SW WINDS 15 TO 20 KT
BECOMING NW 10 KT LATE. GUSTS UP TO
25 KT. WAVES 2 TO 3 FT. SCATTERED TSTMS. SCATTERED SHOWERS EARLY
THIS MORNING, THEN SHOWERS THIS AFTERNOON.
TONIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
MON...NW WINDS 15 TO 20 KT
BECOMING W 5 TO 10 KT IN THE
AFTERNOON. WAVES 3 FT...SUBSIDING TO 1 FT IN THE AFTERNOON.
MON NIGHT...S WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT.
TUE
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
TUE NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED...NE WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 TO
2 FT.
THU
SE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-052000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING
TODAY...SW WINDS 15 TO 20 KT
BECOMING NW 10 KT LATE. GUSTS UP TO
25 KT. WAVES 2 TO 3 FT...SUBSIDING TO 1 FT LATE. SCATTERED SHOWERS
WITH ISOLATED TSTMS EARLY THIS MORNING, THEN SHOWERS AND SCATTERED
TSTMS THIS AFTERNOON.
TONIGHT
NW WINDS 15 TO 20 KT. GUSTS UP TO 25 KT. WAVES 2 FT.
MON...NW WINDS 15 TO 20 KT
BECOMING W 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT.
MON NIGHT...S WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT.
TUE
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED...NE WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 FT.
THU
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-052000-
PATUXENT RIVER TO BROOMES ISLAND MD-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING
TODAY...SW WINDS 15 TO 20 KT
BECOMING W 10 KT LATE. GUSTS UP TO
25 KT. WAVES 1 FT. SCATTERED SHOWERS AND TSTMS EARLY THIS MORNING,
THEN SHOWERS AND SCATTERED TSTMS THIS AFTERNOON.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 FT.
MON NIGHT...S WINDS 5 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
TUE
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED
E WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-052000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING
TODAY...SW WINDS 20 KT
BECOMING W LATE. GUSTS UP TO 25 KT. WAVES
3 FT. ISOLATED SHOWERS AND TSTMS EARLY THIS MORNING, THEN SHOWERS
WITH ISOLATED TSTMS THIS AFTERNOON.
TONIGHT...NW WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT WITH
GUSTS TO 25 KT IN THE LATE EVENING AND OVERNIGHT. WAVES 3 FT.
SCATTERED SHOWERS.
MON...NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING W 5 TO
10 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.
MON NIGHT
SW WINDS 10 TO 15 KT. WAVES 1 FT.
TUE
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
TUE NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT.
WED...NE WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 TO
2 FT.
THU
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-052000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
800 AM EDT SUN APR 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING
TODAY...S WINDS 20 KT
BECOMING W LATE. GUSTS UP TO 25 KT. WAVES
2 FT. ISOLATED SHOWERS AND TSTMS EARLY THIS MORNING, THEN SHOWERS
AND SCATTERED TSTMS THIS AFTERNOON.
TONIGHT...NW WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT WITH
GUSTS TO 25 KT IN THE LATE EVENING AND OVERNIGHT. WAVES 2 FT.
SCATTERED SHOWERS.
MON...NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING W 5 TO
10 KT IN THE AFTERNOON. WAVES 1 TO 2 FT.
MON NIGHT
SW WINDS 10 TO 15 KT. WAVES 1 FT.
TUE
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED...NE WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 FT.
THU
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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