260
FZUS51 KLWX 172035
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
434 PM EDT WED SEP 17 2025
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.
ANZ500-180800-
434 PM EDT WED SEP 17 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
AN AREA OF LOW PRESSURE OVER THE VIRGINIA TIDEWATER WILL DRIFT
OFFSHORE THROUGH TONIGHT. HAZARDOUS MARINE CONDITIONS ARE EXPECTED
THROUGH THIS EVENING. A COLD FRONT WILL MOVE ACROSS THE WATERS
FRIDAY NIGHT. SMALL CRAFT ADVISORIES FOR NORTHERLY CHANNELING ARE
POSSIBLE FRIDAY NIGHT INTO SATURDAY MORNING FOR PARTS OF THE WATERS.
ANZ535-180800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
434 PM EDT WED SEP 17 2025
REST OF THIS AFTERNOON
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT. A CHANCE OF SHOWERS. PATCHY FOG.
TONIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT.
THU NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT.
SAT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-180800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
434 PM EDT WED SEP 17 2025
REST OF THIS AFTERNOON
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF
SHOWERS. PATCHY FOG.
TONIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
PATCHY FOG. VSBY 1 TO 3 NM.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT.
THU NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-180800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
434 PM EDT WED SEP 17 2025
REST OF THIS AFTERNOON
E WINDS 10 KT. WAVES 1 FT. A CHANCE OF
SHOWERS.
TONIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
PATCHY FOG. VSBY 1 TO 3 NM.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG.
THU NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT...S WINDS AROUND 5 KT
BECOMING N AFTER MIDNIGHT. WAVES
1 FT OR LESS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ530-180800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
434 PM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
2 FT. A CHANCE OF SHOWERS.
TONIGHT
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
PATCHY FOG.
THU
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
FRI
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ531-180800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
434 PM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. A CHANCE OF SHOWERS.
TONIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS. PATCHY FOG.
THU...N WINDS 5 TO 10 KT
BECOMING SW LATE. WAVES 1 FT.
THU NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ538-180800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
434 PM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT. A CHANCE OF SHOWERS.
TONIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU
N WINDS 5 KT. WAVES FLAT.
THU NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
FRI
NW WINDS 5 KT. WAVES FLAT.
FRI NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ539-180800-
CHESTER RIVER TO QUEENSTOWN MD-
434 PM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF
SHOWERS. PATCHY FOG.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
PATCHY FOG.
THU
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI NIGHT...SE WINDS AROUND 5 KT
BECOMING NE AFTER MIDNIGHT.
WAVES 1 FT OR LESS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ532-180800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
434 PM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
NE WINDS 10 KT. WAVES 2 FT. A CHANCE OF
SHOWERS.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS. PATCHY FOG.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI NIGHT...SE WINDS 5 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
SAT
E WINDS 10 KT. WAVES 1 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ540-180800-
EASTERN BAY-
434 PM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF
SHOWERS.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
PATCHY FOG.
THU
N WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI NIGHT...SE WINDS AROUND 5 KT
BECOMING NE AFTER MIDNIGHT.
WAVES 1 FT OR LESS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ533-180800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
434 PM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
NE WINDS 10 KT. WAVES 2 FT. A CHANCE OF
SHOWERS. PATCHY FOG.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS. PATCHY FOG. VSBY 1 TO 3 NM.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT...SE WINDS 5 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
SAT
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ541-180800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
434 PM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF
SHOWERS. PATCHY FOG.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
PATCHY FOG. VSBY 1 TO 3 NM.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG.
THU NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT...SE WINDS AROUND 5 KT
BECOMING NE AFTER MIDNIGHT.
WAVES 1 FT OR LESS.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ542-180800-
PATUXENT RIVER TO BROOMES ISLAND MD-
434 PM EDT WED SEP 17 2025
REST OF THIS AFTERNOON
E WINDS 5 KT. WAVES LESS THAN 1 FT. A
CHANCE OF SHOWERS.
TONIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
PATCHY FOG. VSBY 1 TO 3 NM.
THU
N WINDS 5 KT. WAVES LESS THAN 1 FT. PATCHY FOG.
THU NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
W WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-180800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
434 PM EDT WED SEP 17 2025
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 1 FT. A SLIGHT
CHANCE OF SHOWERS.
TONIGHT...E WINDS 5 KT
BECOMING N LATE. WAVES 1 FT. A CHANCE OF
SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...S WINDS 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT OR
LESS.
SAT
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
ANZ543-180800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
434 PM EDT WED SEP 17 2025
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 1 FT. A SLIGHT
CHANCE OF SHOWERS.
TONIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT. PATCHY FOG. VSBY 1 TO
3 NM.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
SAT
NE WINDS 10 TO 15 KT. WAVES 1 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
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