225
FZUS51 KLWX 230904
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
504 AM EDT FRI OCT 23 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.
ANZ500-232100-
504 AM EDT FRI OCT 23 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A LARGE AREA OF HIGH PRESSURE WILL BUILD OVER THE NORTHEAST AND MID-
ATLANTIC THROUGH THE WEEKEND, THEN SHIFT SOUTHWARD AND WEAKEN OVER
THE CENTRAL APPALACHIANS EARLY NEXT WEEK. A DRY BACKDOOR FRONT LOOKS
TO DROP IN FROM THE NORTH TUESDAY, WITH ANOTHER LARGE AREA OF HIGH
PRESSURE BUILDING IN BEHIND IT. SMALL CRAFT ADVISORIES MAY BE NEEDED
TUESDAY IN NORTHEAST FLOW.
ANZ535-232100-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
504 AM EDT FRI OCT 23 2026
TODAY
NE WINDS 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. PATCHY FOG.
SUN
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-232100-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
504 AM EDT FRI OCT 23 2026
TODAY
NE WINDS 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-232100-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
504 AM EDT FRI OCT 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 2 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
N WINDS AROUND 5 KT. WAVES FLAT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
NE WINDS 5 TO 10 KT. WAVES 2 FT.
ANZ530-232100-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
504 AM EDT FRI OCT 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
TODAY...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 KT LATE. WAVES 1 FT.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS AROUND 5 KT. WAVES FLAT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES FLAT. PATCHY FOG.
SUN
NW WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ531-232100-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
504 AM EDT FRI OCT 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN
E WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE...NE WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
ANZ538-232100-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
504 AM EDT FRI OCT 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
TODAY
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS AROUND 5 KT. WAVES FLAT.
SAT NIGHT
LIGHT WINDS. WAVES FLAT.
SUN
E WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ539-232100-
CHESTER RIVER TO QUEENSTOWN MD-
504 AM EDT FRI OCT 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TONIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS AROUND 5 KT. WAVES FLAT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN
N WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ532-232100-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
504 AM EDT FRI OCT 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
TODAY...NE WINDS 15 TO 20 KT
DIMINISHING TO 10 KT LATE. WAVES
2 TO 3 FT.
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN
NE WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE...NE WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
ANZ540-232100-
EASTERN BAY-
504 AM EDT FRI OCT 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS AROUND 5 KT. WAVES FLAT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN
NE WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ533-232100-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
504 AM EDT FRI OCT 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
TODAY...NE WINDS 15 TO 20 KT
DIMINISHING TO 10 KT LATE. GUSTS UP
TO 25 KT. WAVES 2 TO 3 FT.
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
MON...NW WINDS AROUND 5 KT
INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES 1 FT OR LESS.
TUE...NE WINDS 10 TO 15 KT
BECOMING 10 KT AFTER MIDNIGHT. WAVES
1 TO 2 FT.
ANZ541-232100-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
504 AM EDT FRI OCT 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
TODAY...NE WINDS 15 TO 20 KT
DIMINISHING TO 10 KT LATE. WAVES
1 TO 2 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN
NE WINDS 5 KT. WAVES FLAT.
SUN NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
NE WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ542-232100-
PATUXENT RIVER TO BROOMES ISLAND MD-
504 AM EDT FRI OCT 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN
NE WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT.
MON
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-232100-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
504 AM EDT FRI OCT 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
TODAY
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
TONIGHT
NE WINDS 10 TO 15 KT. WAVES 2 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE...N WINDS 10 TO 15 KT
BECOMING NE. WAVES 2 FT.
ANZ543-232100-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
504 AM EDT FRI OCT 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
TODAY
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TONIGHT
NE WINDS 10 TO 15 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE...N WINDS 10 TO 15 KT
BECOMING NE. WAVES 1 FT.
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