274
FZUS51 KLWX 190129
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
929 PM EDT SUN OCT 18 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.
ANZ500-190800-
929 PM EDT SUN OCT 18 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD IN FROM THE CENTRAL U.S. THROUGH TONIGHT,
THEN LINGER INTO THE MIDDLE OF THE WEEK AS LOW PRESSURE MEANDERS OFF
THE MID-ATALANTIC COAST. ADDITIONAL SMALL CRAFT ADVISORIES WILL
LIKELY BE NEEDED AT TIMES THROUGH MUCH OF THE WEEK. MARGINAL GALE-
FORCE GUSTS ARE ALSO POSSIBLE AT TIMES ON THE WIDER WATERS OF THE
MIDDLE CHESAPEAKE BAY.
ANZ535-190800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
929 PM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT MONDAY AFTERNOON
REST OF TONIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING AND
AFTERNOON. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-190800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
929 PM EDT SUN OCT 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT MONDAY THROUGH
MONDAY AFTERNOON...
REST OF TONIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 10 KT. WAVES 1 FT.
WED
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-190800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
929 PM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON
REST OF TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES
2 TO 3 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
TUE
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
TUE NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
WED
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
NE WINDS 10 TO 15 KT. WAVES 2 TO 3 FT.
ANZ530-190800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
929 PM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT MONDAY AFTERNOON
REST OF TONIGHT...NE WINDS 5 KT
BECOMING N LATE. WAVES 1 FT OR
LESS.
MON
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
TUE
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TUE NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU
N WINDS 10 TO 15 KT. WAVES 1 FT.
FRI
N WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ531-190800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
929 PM EDT SUN OCT 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT MONDAY THROUGH
MONDAY AFTERNOON...
REST OF TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 15 TO 20 KT. GUSTS UP TO 25 KT. WAVES 2 TO
3 FT.
TUE
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
TUE NIGHT
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
WED
N WINDS 15 TO 20 KT. WAVES 2 FT.
WED NIGHT
N WINDS 10 TO 15 KT. WAVES 2 FT.
THU
N WINDS 15 TO 20 KT. WAVES 2 FT.
FRI
N WINDS 15 TO 20 KT. WAVES 2 FT.
ANZ538-190800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
929 PM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT MONDAY AFTERNOON
REST OF TONIGHT
N WINDS 5 KT. WAVES FLAT.
MON
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ539-190800-
CHESTER RIVER TO QUEENSTOWN MD-
929 PM EDT SUN OCT 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT MONDAY THROUGH
MONDAY AFTERNOON...
REST OF TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
THU
N WINDS 10 TO 15 KT. WAVES 2 FT.
FRI
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ532-190800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
929 PM EDT SUN OCT 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EDT MONDAY THROUGH
MONDAY AFTERNOON...
REST OF TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 TO 2 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT.
TUE
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
TUE NIGHT
N WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
WED
N WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
FRI
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
ANZ540-190800-
EASTERN BAY-
929 PM EDT SUN OCT 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EDT MONDAY THROUGH
MONDAY AFTERNOON...
REST OF TONIGHT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT. WAVES
1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 15 TO 20 KT. GUSTS UP TO 25 KT. WAVES 1 TO
2 FT.
TUE
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE NIGHT
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
WED
N WINDS 15 TO 20 KT. WAVES 2 FT.
WED NIGHT
N WINDS 10 TO 15 KT. WAVES 1 FT.
THU
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ533-190800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
929 PM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON
REST OF TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
2 TO 3 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
TUE
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
TUE NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
WED
N WINDS 20 TO 25 KT. WAVES 3 FT.
WED NIGHT
N WINDS 15 TO 20 KT. WAVES 3 FT.
THU
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
FRI
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
ANZ541-190800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
929 PM EDT SUN OCT 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EDT MONDAY THROUGH
MONDAY AFTERNOON...
REST OF TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 TO 2 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
N WINDS 20 TO 25 KT. GUSTS UP TO 30 KT. WAVES 2 TO
3 FT.
TUE
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
TUE NIGHT
N WINDS 20 TO 25 KT. WAVES 2 FT.
WED
N WINDS 20 TO 25 KT. WAVES 2 FT.
WED NIGHT
N WINDS 15 TO 20 KT. WAVES 2 FT.
THU
N WINDS 15 TO 20 KT. WAVES 2 FT.
FRI
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ542-190800-
PATUXENT RIVER TO BROOMES ISLAND MD-
929 PM EDT SUN OCT 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM EDT MONDAY THROUGH
MONDAY AFTERNOON...
REST OF TONIGHT
NE WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TUE
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
WED
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
WED NIGHT
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NE WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ534-190800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
929 PM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON
...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
MORNING...
REST OF TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES
2 TO 3 FT...BUILDING TO 4 FT LATE.
MON
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
MON NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 5 FT.
TUE NIGHT
N WINDS 20 TO 25 KT. WAVES 4 FT.
WED
N WINDS 20 TO 25 KT. WAVES 4 FT.
WED NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
THU
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
FRI
NE WINDS 15 TO 20 KT. WAVES 3 FT.
ANZ543-190800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
929 PM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON
...GALE WATCH IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
MORNING...
REST OF TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
MON NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
TUE
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
TUE NIGHT
N WINDS 20 TO 25 KT. WAVES 2 FT.
WED
N WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
WED NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
THU
N WINDS 15 TO 20 KT. WAVES 2 FT.
FRI
NE WINDS 15 TO 20 KT. WAVES 2 FT.
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