644
FZUS51 KLWX 292202
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
502 PM EST MON DEC 29 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.
ANZ500-301000-
502 PM EST MON DEC 29 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
STRONG WINDS WILL PERSIST ACROSS THE WATERS IN THE WAKE OF A COLD
FRONT THROUGH TUESDAY. A CLIPPER LOW WILL APPROACH THE WATERS BY
THE MIDDLE OF THE WEEK. HIGH PRESSURE LOOKS TO RETURN BY THE END OF
THE WEEK. SMALL CRAFT ADVISORIES MAY BE NEEDED WEDNESDAY INTO
THURSDAY.
ANZ535-301000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH TUESDAY AFTERNOON
..SMALL CRAFT ADVISORY IN EFFECT TUESDAY EVENING
TONIGHT...W WINDS 20 KT. GUSTS UP TO 45 KT
DIMINISHING TO 35 KT
LATE THIS EVENING AND OVERNIGHT. WAVES 2 FT.
TUE
W WINDS 15 TO 20 KT WITH GUSTS TO 40 KT. WAVES 2 FT.
TUE NIGHT
W WINDS 5 TO 10 KT. GUSTS UP TO 25 KT EARLY IN THE
EVENING. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
FRI
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
N WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-301000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING...
TONIGHT...W WINDS 20 TO 25 KT. GUSTS UP TO 40 KT
DIMINISHING TO
30 KT LATE. WAVES 2 TO 3 FT.
TUE
W WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
TUE NIGHT...W WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT LATE.
GUSTS UP TO 20 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT...N WINDS 5 TO 10 KT
BECOMING E AFTER MIDNIGHT. WAVES
1 FT.
FRI
S WINDS AROUND 5 KT. WAVES 1 FT.
SAT
N WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF RAIN THROUGH THE
DAY.
ANZ537-301000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH LATE
TUESDAY NIGHT...
TONIGHT
W WINDS 25 TO 30 KT. GUSTS UP TO 30 KT LATE. WAVES 4 FT.
TUE
W WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
TUE NIGHT...W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT
DIMINISHING
TO 20 KT AFTER MIDNIGHT. WAVES 3 FT...SUBSIDING TO 1 FT AFTER
MIDNIGHT.
WED
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
W WINDS 10 TO 15 KT. WAVES 1 FT.
THU
NW WINDS 10 TO 15 KT. WAVES 2 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN THROUGH THE
DAY.
ANZ530-301000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH TUESDAY AFTERNOON
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH LATE
TUESDAY NIGHT...
TONIGHT...W WINDS 25 TO 30 KT. GUSTS UP TO 45 KT
DIMINISHING TO
35 KT AFTER MIDNIGHT. WAVES 3 FT.
TUE...W WINDS 20 TO 25 KT. GUSTS UP TO 40 KT
DIMINISHING TO
30 KT LATE. WAVES 3 FT.
TUE NIGHT...W WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING
TO 20 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
WED
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
W WINDS 10 TO 15 KT. WAVES 1 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 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.
SAT
N WINDS AROUND 5 KT. WAVES 1 FT.
ANZ531-301000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH TUESDAY AFTERNOON
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH LATE
TUESDAY NIGHT...
TONIGHT
W WINDS 30 KT. GUSTS UP TO 45 KT THIS EVENING. WAVES
4 FT...EXCEPT AROUND 3 FT NEAR THE MOUTH OF THE PATAPSCO.
TUE
W WINDS 25 TO 30 KT. GUSTS UP TO 30 KT LATE. WAVES 4 FT.
TUE NIGHT...W WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING
TO 20 KT LATE. WAVES 2 TO 3 FT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI...W WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT OR
LESS.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ538-301000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH TUESDAY AFTERNOON
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH LATE
TUESDAY NIGHT...
TONIGHT
W WINDS 20 TO 25 KT WITH GUSTS TO 40 KT. WAVES 2 TO 3 FT.
TUE...W WINDS 15 TO 20 KT. GUSTS UP TO 40 KT
DIMINISHING TO
30 KT LATE. WAVES 2 FT.
TUE NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
N WINDS AROUND 5 KT. WAVES FLAT.
ANZ539-301000-
CHESTER RIVER TO QUEENSTOWN MD-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH TUESDAY AFTERNOON
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH LATE
TUESDAY NIGHT...
TONIGHT
W WINDS 30 KT. GUSTS UP TO 45 KT THIS EVENING. WAVES
4 FT.
TUE
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE NIGHT...W WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING
TO 20 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
FRI...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ532-301000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH TUESDAY AFTERNOON
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH LATE
TUESDAY NIGHT...
TONIGHT...W WINDS 25 TO 30 KT. GUSTS UP TO 45 KT
DIMINISHING TO
35 KT AFTER MIDNIGHT. WAVES 4 FT.
TUE
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE NIGHT...W WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING
TO 20 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
W WINDS 10 TO 15 KT. WAVES 1 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ540-301000-
EASTERN BAY-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH TUESDAY AFTERNOON
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY EVENING THROUGH LATE
TUESDAY NIGHT...
TONIGHT...W WINDS 25 TO 30 KT. GUSTS UP TO 45 KT
DIMINISHING TO
35 KT AFTER MIDNIGHT. WAVES 3 FT.
TUE
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
TUE NIGHT
W WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
WED NIGHT
W WINDS 10 TO 15 KT. WAVES 1 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ533-301000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH LATE
TUESDAY NIGHT...
TONIGHT
W WINDS 25 TO 30 KT. GUSTS UP TO 45 KT THIS EVENING.
WAVES 5 FT.
TUE
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE NIGHT...W WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING
TO 20 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT...SW WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES
2 FT.
THU
NW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
AFTERNOON.
ANZ541-301000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH LATE
TUESDAY NIGHT...
TONIGHT
W WINDS 30 KT. GUSTS UP TO 45 KT THIS EVENING. WAVES 2 TO
3 FT...EXCEPT AROUND 4 FT NEAR THE MOUTH OF THE CHOPTANK.
TUE
W WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
TUE NIGHT...W WINDS 20 TO 25 KT WITH GUSTS TO 30 KT
DIMINISHING
TO 10 TO 15 KT WITH GUSTS TO 20 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT...SW WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES
2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
AFTERNOON.
ANZ542-301000-
PATUXENT RIVER TO BROOMES ISLAND MD-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH LATE
TUESDAY NIGHT...
TONIGHT...W WINDS 20 KT. GUSTS UP TO 40 KT
DIMINISHING TO 30 KT
LATE. WAVES 1 TO 2 FT.
TUE
W WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 FT.
TUE NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 10 TO 15 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS AROUND 5 KT. WAVES 1 FT.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF RAIN THROUGH
THE DAY.
ANZ534-301000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH LATE
TUESDAY NIGHT...
TONIGHT
W WINDS 25 TO 30 KT. WAVES 5 FT.
TUE
W WINDS 25 TO 30 KT. WAVES 4 FT.
TUE NIGHT...W WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING
TO 20 KT AFTER MIDNIGHT. WAVES 4 FT...SUBSIDING TO 2 FT AFTER
MIDNIGHT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
W WINDS 15 TO 20 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN THROUGH THE
DAY.
ANZ543-301000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
502 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH LATE
TUESDAY NIGHT...
TONIGHT
W WINDS 30 KT. WAVES 3 FT.
TUE
W WINDS 25 TO 30 KT. WAVES 3 FT.
TUE NIGHT...W WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING
TO 20 KT AFTER MIDNIGHT. WAVES 2 FT.
WED
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
WED NIGHT
W WINDS 15 TO 20 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
N WINDS 10 TO 15 KT. WAVES 1 FT.
FRI...W WINDS 5 TO 10 KT
BECOMING 5 KT. WAVES 1 FT.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN IN THE
AFTERNOON.
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