713
FZUS51 KLWX 242057
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 PM EDT THU SEP 24 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.
ANZ500-250800-
457 PM EDT THU SEP 24 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A STRONG COASTAL LOW WILL DEVELOP OFFSHORE AND INTENSIFY AS IT LIFTS
NORTHWARD INTO THIS WEEKEND. SMALL CRAFT ADVISORIES WILL LIKELY BE
NEEDED FOR MUCH OF THE FRIDAY THROUGH SATURDAY TIME PERIOD, AND A
FEW LOW-END GALE GUSTS CAN'T BE RULED OUT. A GALE WATCH IS IN EFFECT
FOR THE SOUTHERN WATERS FRIDAY AFTERNOON THROUGH EARLY SATURDAY
AFTERNOON.
ANZ535-250800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON
REST OF THIS AFTERNOON
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TONIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SAT
NW WINDS 10 TO 15 KT WITH GUSTS TO 30 KT. WAVES 1 FT.
SAT NIGHT...NW WINDS 10 TO 15 KT. GUSTS UP TO 30 KT
DIMINISHING
TO 20 KT AFTER MIDNIGHT. WAVES 1 FT.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ536-250800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON
REST OF THIS AFTERNOON
NE WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT...N WINDS 10 TO 15 KT. GUSTS UP TO 25 KT
DIMINISHING TO
20 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
FRI
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SAT
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SAT NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-250800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
...GALE WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY
AFTERNOON...
REST OF THIS AFTERNOON
NE WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
4 FT.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
SAT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SUN...NW WINDS 15 TO 20 KT
DIMINISHING TO 10 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ530-250800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON
REST OF THIS AFTERNOON
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SAT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
NW WINDS 20 TO 25 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT. WAVES 1 FT OR
LESS.
ANZ531-250800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON
REST OF THIS AFTERNOON
NE WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
N WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
MON...NW WINDS 10 TO 15 KT...DIMINISHING TO 5 KT. WAVES 1 TO 2 FT
SUBSIDING TO FLAT AFTER MIDNIGHT.
ANZ538-250800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON
REST OF THIS AFTERNOON
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT.
SAT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ539-250800-
CHESTER RIVER TO QUEENSTOWN MD-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON
REST OF THIS AFTERNOON
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
MON...NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT
SUBSIDING TO FLAT
AFTER MIDNIGHT.
ANZ532-250800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON
REST OF THIS AFTERNOON
NE WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
3 FT.
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
SAT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT. WAVES 1 TO 2 FT.
ANZ540-250800-
EASTERN BAY-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON
REST OF THIS AFTERNOON
NE WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT.
SAT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO AROUND 5 KT. WAVES 1 FT
OR LESS.
ANZ533-250800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
...GALE WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY
AFTERNOON...
REST OF THIS AFTERNOON
NE WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
4 FT.
TONIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI NIGHT
N WINDS 25 TO 30 KT. WAVES 5 FT.
SAT
N WINDS 25 TO 30 KT. WAVES 5 FT.
SAT NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
SUN...NW WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES 3 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT. A CHANCE OF
SHOWERS THROUGH THE NIGHT.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT. WAVES 1 TO 2 FT.
ANZ541-250800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON
REST OF THIS AFTERNOON
NE WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
3 FT.
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT
N WINDS 25 TO 30 KT. WAVES 3 FT.
SAT NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
SUN...NW WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT. WAVES 1 TO 2 FT.
ANZ542-250800-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON
REST OF THIS AFTERNOON
NE WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
1 FT.
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 30 KT. WAVES 1 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 FT.
SAT
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 TO 2 FT.
SAT NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-250800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
...GALE WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY
AFTERNOON...
REST OF THIS AFTERNOON
NE WINDS 25 KT WITH GUSTS TO 30 KT. WAVES
5 FT.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI NIGHT
N WINDS 25 TO 30 KT. WAVES 5 FT.
SAT
N WINDS 25 TO 30 KT. WAVES 5 FT.
SAT NIGHT
NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
SUN...NW WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES 4 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
MON...NW WINDS 10 TO 15 KT
BECOMING W 5 KT AFTER MIDNIGHT. WAVES
1 TO 2 FT.
ANZ543-250800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 PM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
...GALE WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY
AFTERNOON...
REST OF THIS AFTERNOON
NE WINDS 25 KT WITH GUSTS TO 30 KT. WAVES
3 FT.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 25 TO 30 KT. WAVES 3 FT.
SAT
N WINDS 25 TO 30 KT. WAVES 3 FT.
SAT NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SUN...NW WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING W 5 KT AFTER MIDNIGHT. WAVES
1 FT.
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