259
FZUS51 KLWX 011159
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
759 AM EDT FRI MAY 1 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.
ANZ500-012000-
759 AM EDT FRI MAY 1 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A TROUGH OF LOW PRESSURE LINGERS TODAY. A COASTAL LOW TRACKS OFF THE
CAROLINAS ON SATURDAY BEFORE HIGH PRESSURE BUILDS TO THE SOUTHWEST
TO FINISH THE WEEKEND. ANOTHER FRONTAL SYSTEM APPROACHES FROM THE
WEST BY EARLY NEXT WEEK. SMALL CRAFT ADVISORIES MAY BE NEEDED
TONIGHT, SATURDAY NIGHT INTO SUNDAY, AND MONDAY THROUGH TUESDAY.
ANZ535-012000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
759 AM EDT FRI MAY 1 2026
TODAY...NW WINDS 10 KT
BECOMING SW LATE THIS MORNING AND
AFTERNOON. WAVES 1 FT OR LESS.
TONIGHT...S WINDS 5 TO 10 KT
BECOMING NW IN THE LATE EVENING AND
OVERNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT. WAVES 1 FT.
TUE
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ536-012000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
759 AM EDT FRI MAY 1 2026
TODAY...NW WINDS 5 TO 10 KT
BECOMING S THIS AFTERNOON. WAVES
1 FT.
TONIGHT...SE WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES
1 FT. A CHANCE OF SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ537-012000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
759 AM EDT FRI MAY 1 2026
TODAY...N WINDS 5 TO 10 KT
BECOMING SE THIS AFTERNOON. WAVES 1 TO
2 FT...SUBSIDING TO 1 FT OR LESS THIS AFTERNOON.
TONIGHT...SE WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT AFTER
MIDNIGHT, THEN BECOMING NW LATE. WAVES 2 FT. A CHANCE OF SHOWERS.
SAT
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ530-012000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
759 AM EDT FRI MAY 1 2026
TODAY...NW WINDS 5 TO 10 KT
BECOMING SW THIS AFTERNOON. WAVES
1 FT.
TONIGHT...SW WINDS 5 KT
BECOMING NW LATE. WAVES 1 FT. A CHANCE OF
SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 FT.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE
S WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
ANZ531-012000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
759 AM EDT FRI MAY 1 2026
TODAY...NW WINDS 5 TO 10 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT
OR LESS.
TONIGHT...S WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT. A
CHANCE OF SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
TUE
S WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ538-012000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
759 AM EDT FRI MAY 1 2026
TODAY...NW WINDS 5 TO 10 KT
BECOMING SE THIS AFTERNOON. WAVES
1 FT OR LESS.
TONIGHT...S WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT OR LESS. A CHANCE OF SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
S WINDS 10 TO 15 KT. WAVES 1 FT.
TUE...S WINDS 10 KT
INCREASING TO 15 TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
ANZ539-012000-
CHESTER RIVER TO QUEENSTOWN MD-
759 AM EDT FRI MAY 1 2026
TODAY...NW WINDS 5 TO 10 KT
BECOMING SW THIS AFTERNOON. WAVES
1 TO 2 FT...SUBSIDING TO 1 FT OR LESS THIS AFTERNOON.
TONIGHT...S WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT. A
CHANCE OF SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ532-012000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
759 AM EDT FRI MAY 1 2026
TODAY...NW WINDS 5 TO 10 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT
OR LESS.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON...S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT
BUILDING TO 3 FT AFTER
MIDNIGHT.
TUE
S WINDS 15 TO 20 KT. WAVES 3 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
ANZ540-012000-
EASTERN BAY-
759 AM EDT FRI MAY 1 2026
TODAY...NW WINDS 5 TO 10 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT
OR LESS.
TONIGHT...S WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT. A
CHANCE OF SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE
S WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
ANZ533-012000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
759 AM EDT FRI MAY 1 2026
TODAY...N WINDS 5 TO 10 KT
BECOMING SE THIS AFTERNOON. WAVES 1 TO
2 FT...SUBSIDING TO 1 FT OR LESS THIS AFTERNOON.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
SAT
N WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT. WAVES 2 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON...S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT
BUILDING TO 3 FT AFTER
MIDNIGHT.
TUE...S WINDS 15 KT
INCREASING TO 20 TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
ANZ541-012000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
759 AM EDT FRI MAY 1 2026
TODAY...NW WINDS 5 TO 10 KT
BECOMING SW THIS AFTERNOON. WAVES
1 TO 2 FT...SUBSIDING TO 1 FT OR LESS THIS AFTERNOON.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
TUE...S WINDS 15 KT
INCREASING TO 20 TO 25 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
ANZ542-012000-
PATUXENT RIVER TO BROOMES ISLAND MD-
759 AM EDT FRI MAY 1 2026
TODAY...N WINDS 5 TO 10 KT
BECOMING SE THIS AFTERNOON. WAVES
1 FT.
TONIGHT...SE WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. A CHANCE OF SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
MON
S WINDS 10 TO 15 KT. WAVES 1 FT.
TUE
S WINDS 15 TO 20 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
ANZ534-012000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
759 AM EDT FRI MAY 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
TODAY...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W 5 KT
EARLY THIS AFTERNOON, THEN BECOMING S LATE. WAVES 1 TO 2 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING W LATE. GUSTS UP TO 20 KT.
WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS
LIKELY.
SAT NIGHT
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF
SHOWERS.
SUN
NW WINDS 15 TO 20 KT. WAVES 3 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON...S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT
BUILDING TO 4 FT AFTER
MIDNIGHT.
TUE
S WINDS 20 TO 25 KT. WAVES 3 FT.
ANZ543-012000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
759 AM EDT FRI MAY 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
TODAY...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W 5 KT
EARLY THIS AFTERNOON, THEN BECOMING S LATE. WAVES 1 FT OR LESS.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING W LATE. GUSTS UP TO 20 KT.
WAVES 2 FT.
SAT
N WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT NIGHT
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
SUN
NW WINDS 15 TO 20 KT. WAVES 2 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON...S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT
BUILDING TO 3 FT AFTER
MIDNIGHT.
TUE
S WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
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