317
FZUS51 KLWX 010857
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 AM EDT THU OCT 1 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.
ANZ500-012300-
457 AM EDT THU OCT 1 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL MOVE OFFSHORE THROUGH THE END OF THE WEEK AS A
COLD FRONT APPROACHES FROM THE WEST. THIS FRONT WILL STALL NEAR THE
AREA THIS WEEKEND WHEN A WAVE OF LOW PRESSURE MAY PASS TO THE SOUTH.
A SECOND COLD FRONT WILL CROSS THE AREA ON MONDAY. SMALL CRAFT
ADVISORIES MAY BE NEEDED AT TIMES IN SOUTH TO SOUTHWEST FLOW
THURSDAY EVENING THROUGH FRIDAY AFTERNOON, THEN IN NORTHERLY FLOW
FRIDAY NIGHT INTO SATURDAY. ADDITIONAL SMALL CRAFT ADVISORIES ARE
LIKELY MONDAY INTO TUESDAY.
ANZ535-012300-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
NE WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-012300-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
N WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY .
MON
N WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-012300-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 10 KT. WAVES 1 FT.
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS
LIKELY.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF TSTMS THROUGH
THE DAY. SHOWERS, THEN A CHANCE OF SHOWERS AFTER MIDNIGHT.
MON...N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT
BUILDING TO 3 FT AFTER
MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-012300-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...NW WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 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. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ531-012300-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...NW WINDS 5 TO 10 KT
BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
SAT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 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. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ538-012300-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 5 KT. WAVES FLAT.
TODAY
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 KT. WAVES FLAT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ539-012300-
CHESTER RIVER TO QUEENSTOWN MD-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
SAT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ532-012300-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 10 KT. WAVES 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 10 KT. WAVES 2 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
FRI NIGHT...W WINDS 5 TO 10 KT
BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
SAT
N WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY .
MON...NW WINDS 5 TO 10 KT
BECOMING N 15 TO 20 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT AFTER MIDNIGHT.
ANZ540-012300-
EASTERN BAY-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY .
MON
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ533-012300-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 10 KT. WAVES 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 10 KT. WAVES 1 TO 2 FT.
FRI
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI NIGHT...W WINDS 5 TO 10 KT
BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 FT...BUILDING TO 3 FT AFTER MIDNIGHT. SHOWERS
LIKELY.
SAT
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY .
MON...N WINDS 20 TO 25 KT. WAVES 1 TO 2 FT
BUILDING TO 3 FT.
ANZ541-012300-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 10 KT. WAVES 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...W WINDS 5 TO 10 KT
BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
SAT...N WINDS 15 TO 20 KT
BECOMING NE 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY .
MON...N WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT. WAVES 1 TO
2 FT.
ANZ542-012300-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...W WINDS 5 KT
BECOMING N 10 TO 15 KT WITH GUSTS TO
20 KT AFTER MIDNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
SUN
NE WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY .
MON
N WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ534-012300-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 10 KT. WAVES 1 FT.
TODAY
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI NIGHT...SW WINDS 10 KT
BECOMING N 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 FT...BUILDING TO 3 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS.
SAT
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. SHOWERS LIKELY.
SAT NIGHT
NE WINDS 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY .
MON...N WINDS 20 TO 25 KT. WAVES 2 TO 3 FT
BUILDING TO 4 FT AFTER
MIDNIGHT.
ANZ543-012300-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 AM EDT THU OCT 1 2026
REST OF THE OVERNIGHT
S WINDS 10 KT. WAVES 1 FT.
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT...SW WINDS 10 KT
BECOMING N AFTER MIDNIGHT. GUSTS UP TO
20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY .
MON
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING.
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