261
FZUS51 KLWX 240628
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
227 AM EDT FRI APR 24 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.
ANZ500-242000-
227 AM EDT FRI APR 24 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A BACKDOOR COLD FRONT WILL MOVE INTO THE AREA TOMORROW, BEFORE
STALLING OUT AND LINGERING NEARBY THROUGH SATURDAY NIGHT. SMALL
CRAFT ADVISORIES MAY BE NEEDED FOR PORTIONS OF THE WATERS IN EAST TO
SOUTHEAST FLOW FRIDAY NIGHT INTO SATURDAY, AND THEN AGAIN IN
NORTHERLY FLOW ON SUNDAY.
ANZ535-242000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
227 AM EDT FRI APR 24 2026
OVERNIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT. SCATTERED SHOWERS AND TSTMS.
FRI NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED SHOWERS.
SAT
E WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY.
SAT NIGHT
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS.
SUN
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE OF
SHOWERS.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...NE WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-242000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
227 AM EDT FRI APR 24 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT. SCATTERED SHOWERS AND TSTMS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS.
SUN
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 FT.
MON...NE WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-242000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
227 AM EDT FRI APR 24 2026
OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
N WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED SHOWERS AND
TSTMS.
FRI NIGHT
SE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SCATTERED
SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. SHOWERS.
SUN
N WINDS 15 TO 20 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
MON...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-242000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
227 AM EDT FRI APR 24 2026
OVERNIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
SAT NIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ531-242000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
227 AM EDT FRI APR 24 2026
OVERNIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. SHOWERS
LIKELY.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT. SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ538-242000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
227 AM EDT FRI APR 24 2026
OVERNIGHT
NE WINDS AROUND 5 KT. WAVES FLAT.
FRI
NE WINDS 5 KT. WAVES FLAT. SCATTERED SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS.
SUN
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
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 OR LESS.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
ANZ539-242000-
CHESTER RIVER TO QUEENSTOWN MD-
227 AM EDT FRI APR 24 2026
OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
NE WINDS 5 KT. WAVES FLAT. SCATTERED SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ532-242000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
227 AM EDT FRI APR 24 2026
OVERNIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS
LIKELY.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT. SHOWERS.
SUN
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
MON...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ540-242000-
EASTERN BAY-
227 AM EDT FRI APR 24 2026
OVERNIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
NE WINDS 5 KT. WAVES FLAT. SCATTERED SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ533-242000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
227 AM EDT FRI APR 24 2026
OVERNIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS
LIKELY.
SAT NIGHT
NE WINDS 20 TO 25 KT. WAVES 3 FT. SHOWERS.
SUN
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
MON...N WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE...SE WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
ANZ541-242000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
227 AM EDT FRI APR 24 2026
OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
N WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS.
SUN
NE WINDS 20 TO 25 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 15 TO 20 KT. WAVES 2 FT.
MON...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ542-242000-
PATUXENT RIVER TO BROOMES ISLAND MD-
227 AM EDT FRI APR 24 2026
OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
N WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
E WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT NIGHT...E WINDS 10 KT
BECOMING NE 15 TO 20 KT WITH GUSTS TO
25 KT AFTER MIDNIGHT. WAVES 1 FT. SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SUN NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON...NE WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ534-242000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
227 AM EDT FRI APR 24 2026
OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...NW WINDS 5 TO 10 KT
BECOMING E LATE. WAVES 1 FT. SCATTERED
SHOWERS.
FRI NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SCATTERED SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
MON...N WINDS 15 TO 20 KT
BECOMING NE 5 TO 10 KT. WAVES 2 TO
3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
TUE...SE WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
ANZ543-242000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
227 AM EDT FRI APR 24 2026
OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...NW WINDS 5 KT
BECOMING E LATE. WAVES 1 FT. SCATTERED
SHOWERS.
FRI NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SCATTERED SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS 15 TO 20 KT. WAVES 2 FT. SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON...NE WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page