408
FZUS51 KLWX 171435
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1035 AM 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.
ANZ500-172000-
1035 AM EDT WED SEP 17 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COASTAL LOW OFF 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.
ANZ535-172000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON
REST OF TODAY
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS LIKELY. VSBY 1 TO 3 NM THIS AFTERNOON.
TONIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
PATCHY FOG. VSBY 1 TO 3 NM.
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
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-172000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON
REST OF TODAY
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS LATE THIS MORNING, THEN SHOWERS LIKELY THIS
AFTERNOON. VSBY 1 TO 3 NM.
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 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 FT.
SUN
E WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ537-172000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON
REST OF TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. A CHANCE OF SHOWERS. VSBY 1 TO 3 NM THIS AFTERNOON.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS. PATCHY FOG. VSBY 1 TO 3 NM.
THU
NW 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.
FRI NIGHT
E WINDS 5 TO 10 KT. 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.
ANZ530-172000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SHOWERS LATE THIS MORNING, THEN A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF TSTMS THIS AFTERNOON. VSBY 1 TO 3 NM...DECREASING
TO 1 NM OR LESS THIS AFTERNOON.
TONIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 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 AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
NW WINDS 5 TO 10 KT. WAVES 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 OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-172000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS LATE THIS MORNING, THEN A CHANCE OF SHOWERS THIS AFTERNOON.
VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 2 FT. A CHANCE OF SHOWERS. PATCHY FOG. VSBY 1 TO
3 NM.
THU...N WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT.
THU NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SAT...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ538-172000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SHOWERS. VSBY 1 TO 3 NM.
TONIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 FT. A CHANCE OF SHOWERS. PATCHY FOG. VSBY 1 TO
3 NM.
THU
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
SW WINDS 5 KT. WAVES FLAT.
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 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ539-172000-
CHESTER RIVER TO QUEENSTOWN MD-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 TO 2 FT. SHOWERS LIKELY. VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 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 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 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ532-172000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF
SHOWERS. VSBY 1 TO 3 NM...DECREASING TO 1 NM OR LESS THIS AFTERNOON.
TONIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS. PATCHY FOG. VSBY 1 NM
OR LESS.
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.
FRI NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SAT...NE WINDS 10 TO 15 KT
BECOMING E. WAVES 1 TO 2 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ540-172000-
EASTERN BAY-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS LATE THIS MORNING, THEN SHOWERS LIKELY
THIS AFTERNOON. VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 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 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 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ533-172000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS LATE THIS MORNING, THEN SHOWERS LIKELY
THIS AFTERNOON WITH VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 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.
FRI NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SAT...NE WINDS 10 TO 15 KT
BECOMING E. WAVES 1 TO 2 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ541-172000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF TODAY
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS LATE THIS MORNING, THEN SHOWERS LIKELY THIS
AFTERNOON WITH VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. 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.
FRI NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 FT.
SAT...NE WINDS 10 TO 15 KT
BECOMING E. WAVES 1 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ542-172000-
PATUXENT RIVER TO BROOMES ISLAND MD-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON
REST OF TODAY
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS LATE THIS MORNING, THEN SHOWERS LIKELY THIS
AFTERNOON WITH VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY. PATCHY
FOG. VSBY 1 TO 3 NM.
THU
NW WINDS 5 TO 10 KT. 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 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-172000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON
REST OF TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
2 TO 3 FT. A CHANCE OF SHOWERS LATE THIS MORNING, THEN SHOWERS
LIKELY THIS AFTERNOON.
TONIGHT
NE WINDS 10 KT. GUSTS UP TO 20 KT UNTIL EARLY MORNING.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS. 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...S WINDS 5 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT.
SAT
E WINDS 10 TO 15 KT. WAVES 2 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
ANZ543-172000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1035 AM EDT WED SEP 17 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON
REST OF TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 TO 2 FT. A CHANCE OF SHOWERS.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
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 NE AFTER MIDNIGHT. WAVES 1 FT.
SAT
E WINDS 10 TO 15 KT. WAVES 1 FT.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT.
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