143
FZUS51 KLWX 221457
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1057 AM EDT THU OCT 22 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.
ANZ500-222000-
1057 AM EDT THU OCT 22 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE REMAINS POSITIONED NORTH OF THE AREA AS SUBTROPICAL
STORM JOSEPHINE MEANDERS OFF THE MID-ATLANTIC COAST. SUBTROPICAL
STORM JOSEPHINE WILL LIKELY DEPART BY FRIDAY AS HIGH PRESSURE BUILDS
OVERHEAD THIS WEEKEND. ADDITIONAL SMALL CRAFT ADVISORIES WILL
LIKELY BE NEEDED AT TIMES THROUGH THE END OF THE WEEK.
ANZ535-222000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1057 AM EDT THU OCT 22 2026
REST OF TODAY
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TONIGHT
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
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.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
W WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-222000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1057 AM EDT THU OCT 22 2026
REST OF TODAY
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TONIGHT
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ537-222000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1057 AM EDT THU OCT 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
REST OF TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI
NE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT UNTIL LATE AFTERNOON.
WAVES 2 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. WAVES 2 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 2 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ530-222000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1057 AM EDT THU OCT 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
REST OF TODAY
N WINDS 10 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
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL LATE AFTERNOON.
WAVES 1 FT.
FRI NIGHT
NE WINDS AROUND 5 KT. WAVES FLAT.
SAT
NE WINDS AROUND 5 KT. WAVES FLAT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN
W WINDS AROUND 5 KT. WAVES FLAT.
MON
W WINDS AROUND 5 KT. WAVES FLAT.
ANZ531-222000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1057 AM EDT THU OCT 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
REST OF TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL LATE AFTERNOON.
WAVES 2 FT.
FRI NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN
SE WINDS AROUND 5 KT. WAVES FLAT.
MON
W WINDS 5 KT. WAVES FLAT.
ANZ538-222000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1057 AM EDT THU OCT 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
REST OF TODAY
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TONIGHT
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL LATE AFTERNOON.
WAVES 1 FT.
FRI NIGHT
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
SE WINDS AROUND 5 KT. WAVES FLAT.
MON
W WINDS AROUND 5 KT. WAVES FLAT.
ANZ539-222000-
CHESTER RIVER TO QUEENSTOWN MD-
1057 AM EDT THU OCT 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
REST OF TODAY
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL LATE AFTERNOON.
WAVES 1 TO 2 FT.
FRI NIGHT
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
NE WINDS AROUND 5 KT. WAVES FLAT.
MON
W WINDS AROUND 5 KT. WAVES FLAT.
ANZ532-222000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1057 AM EDT THU OCT 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
REST OF TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
N WINDS 15 TO 20 KT. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT.
FRI...NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
DIMINISHING TO
5 TO 10 KT LATE. WAVES 2 TO 3 FT.
FRI NIGHT
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
E WINDS AROUND 5 KT. WAVES FLAT.
MON
W WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ540-222000-
EASTERN BAY-
1057 AM EDT THU OCT 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
REST OF TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
FRI
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL LATE AFTERNOON.
WAVES 1 TO 2 FT.
FRI NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN
NE WINDS AROUND 5 KT. WAVES FLAT.
MON
W WINDS AROUND 5 KT. WAVES FLAT.
ANZ533-222000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1057 AM EDT THU OCT 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
REST OF TODAY
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
TONIGHT
N WINDS 15 TO 20 KT. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT.
FRI...NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
DIMINISHING TO
10 KT LATE. WAVES 2 TO 3 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 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 AROUND 5 KT. WAVES 1 FT OR LESS.
MON
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ541-222000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1057 AM EDT THU OCT 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
REST OF TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI
NE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT UNTIL LATE AFTERNOON.
WAVES 2 FT.
FRI NIGHT
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.
MON
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ542-222000-
PATUXENT RIVER TO BROOMES ISLAND MD-
1057 AM EDT THU OCT 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
REST OF TODAY
N 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 FT.
FRI
NE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT. WAVES 1 FT.
FRI NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ534-222000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1057 AM EDT THU OCT 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
REST OF TODAY
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
FRI...NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
DIMINISHING TO
10 KT LATE. WAVES 2 TO 3 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. WAVES 2 FT.
SAT
NE WINDS 10 TO 15 KT. WAVES 2 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ543-222000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1057 AM EDT THU OCT 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING
REST OF TODAY
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 FT.
SAT
NE WINDS 10 TO 15 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 OR LESS.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
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