163
FZUS51 KLWX 260000
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
800 PM EDT SAT APR 25 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.
ANZ500-260800-
800 PM EDT SAT APR 25 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A BACKDOOR COLD FRONT WILL REMAIN STALLED TO THE SOUTH THROUGH
EARLY SUNDAY BEFORE THE SYSTEM PUSHES OUT TO SEA. HAZARDOUS MARINE
CONDITIONS ARE LIKELY FOR MOST OF THIS WEEKEND, BEFORE WINDS
DECREASE EARLY NEXT WEEK. HIGH PRESSURE BUILDS TO THE NORTH LATE IN
THE WEEKEND AND INTO EARLY NEXT WEEK. ANOTHER FRONTAL SYSTEM
APPROACHES FROM THE WEST BY THE MIDDLE OF NEXT WEEK. SMALL CRAFT
ADVISORIES MAY NEED TO BE EXTENDED THROUGH MUCH OF MONDAY.
ANZ535-260800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. NUMEROUS
SHOWERS EARLY THIS EVENING, THEN SCATTERED SHOWERS AFTER MIDNIGHT.
AREAS OF FOG. VSBY 1 TO 3 NM.
SUN
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED...SE WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING, THEN A CHANCE OF TSTMS THROUGH
THE NIGHT. SHOWERS.
THU
NW WINDS 10 TO 15 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-260800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT...NE WINDS 10 KT
BECOMING N LATE. GUSTS UP TO 20 KT.
WAVES 1 FT. NUMEROUS SHOWERS EARLY THIS EVENING, THEN SCATTERED
SHOWERS AFTER MIDNIGHT. AREAS OF FOG. VSBY 1 TO 3 NM.
SUN
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED...SE WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS WITH A CHANCE OF
TSTMS THROUGH THE NIGHT.
THU...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-260800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT...NE WINDS 15 KT
BECOMING N LATE. WAVES 2 FT. WIDESPREAD
SHOWERS. AREAS OF FOG. VSBY 1 TO 3 NM.
SUN
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SUN NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
E WINDS 10 TO 15 KT. WAVES 2 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED...SE WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN A CHANCE
OF TSTMS THROUGH THE NIGHT. SHOWERS LIKELY.
THU
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-260800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
WIDESPREAD SHOWERS. AREAS OF FOG. VSBY 1 TO 3 NM.
SUN...NE WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT LATE. WAVES 2 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
WED...SE WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY.
THU...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF SHOWERS IN THE MORNING.
ANZ531-260800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT
E WINDS 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
WIDESPREAD SHOWERS. AREAS OF FOG. VSBY 1 TO 3 NM.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
NE WINDS 10 KT. WAVES 1 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED...SE WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY.
THU
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING.
ANZ538-260800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT
NE WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
WIDESPREAD SHOWERS. AREAS OF FOG. VSBY 1 TO 3 NM.
SUN
NE WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
WED...SE WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ539-260800-
CHESTER RIVER TO QUEENSTOWN MD-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
WIDESPREAD SHOWERS. AREAS OF FOG. VSBY 1 TO 3 NM.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED...SE WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY.
THU
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING.
ANZ532-260800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT...NE WINDS 15 TO 20 KT. GUSTS UP TO 25 KT
INCREASING TO
30 KT LATE. WAVES 2 TO 3 FT. WIDESPREAD SHOWERS. AREAS OF FOG. VSBY
1 TO 3 NM.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 2 TO 3 FT.
MON
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
WED...SE WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS
LIKELY.
THU
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ540-260800-
EASTERN BAY-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT...E WINDS 15 TO 20 KT. GUSTS UP TO 25 KT
INCREASING TO
30 KT LATE. WAVES 2 FT. WIDESPREAD SHOWERS. AREAS OF FOG. VSBY 1 TO
3 NM.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED...SE WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY.
THU
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
ANZ533-260800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT...NE WINDS 15 TO 20 KT
INCREASING TO 25 KT WITH GUSTS TO
30 KT LATE. WAVES 2 TO 3 FT...BUILDING TO 4 FT LATE. WIDESPREAD
SHOWERS. AREAS OF FOG. VSBY 1 TO 3 NM.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
SUN NIGHT
NE WINDS 15 TO 20 KT. GUSTS UP TO 25 KT UNTIL EARLY
MORNING. WAVES 2 TO 3 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
E WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE
SE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
WED...SE WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY.
THU
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ541-260800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT...NE WINDS 15 TO 20 KT. GUSTS UP TO 20 KT
INCREASING TO
30 KT LATE. WAVES 2 FT. WIDESPREAD SHOWERS. AREAS OF FOG. VSBY 1 TO
3 NM.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
SUN NIGHT
NE WINDS 15 TO 20 KT. GUSTS UP TO 25 KT UNTIL EARLY
MORNING. WAVES 2 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED...SE WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS
LIKELY.
THU
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING.
ANZ542-260800-
PATUXENT RIVER TO BROOMES ISLAND MD-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT LATE. WAVES 1 FT.
WIDESPREAD SHOWERS. AREAS OF FOG. VSBY 1 TO 3 NM.
SUN
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SUN NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
N WINDS 10 KT. WAVES 1 FT.
MON NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED...SE WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-260800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT...E WINDS 15 TO 20 KT
BECOMING N LATE. GUSTS UP TO 25 KT.
WAVES 2 TO 3 FT. WIDESPREAD SHOWERS. AREAS OF FOG. VSBY 1 TO 3 NM.
SUN
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
SUN NIGHT
N WINDS 20 TO 25 KT. WAVES 4 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE
E WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
WED...SE WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY.
THU
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS IN
THE MORNING.
ANZ543-260800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
800 PM EDT SAT APR 25 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON
TONIGHT...E WINDS 15 KT
BECOMING N LATE. GUSTS UP TO 25 KT. WAVES
2 FT. WIDESPREAD SHOWERS. AREAS OF FOG. VSBY 1 TO 3 NM.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SUN NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE...NE WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES
1 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED...SE WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY.
THU
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page