112
FZUS51 KLWX 302357
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
757 PM EDT WED SEP 30 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.
ANZ500-010800-
757 PM EDT WED SEP 30 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 NEARBY OR TO
THE SOUTH. HIGH PRESSURE WILL LIKELY RETURN EARLY NEXT WEEK. 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.
ANZ535-010800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
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. A CHANCE OF SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-010800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
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. A CHANCE OF SHOWERS.
SAT
N WINDS 10 TO 15 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON
N WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ537-010800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 10 KT. WAVES 1 FT. PATCHY FOG AFTER MIDNIGHT WITH
VSBY 1 TO 3 NM.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
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 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
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. A CHANCE OF SHOWERS.
MON...N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT
BUILDING TO 3 FT AFTER
MIDNIGHT. A CHANCE OF SHOWERS IN THE MORNING.
ANZ530-010800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
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 FT. A
CHANCE OF SHOWERS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SUN...SE WINDS 5 TO 10 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS.
MON
N WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ531-010800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...W WINDS 10 KT
BECOMING N 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SAT...N WINDS 15 TO 20 KT
BECOMING NE 5 TO 10 KT IN THE
AFTERNOON. WAVES 2 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...E WINDS 5 TO 10 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS.
MON...NW WINDS 5 TO 10 KT
BECOMING N 15 TO 20 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT AFTER MIDNIGHT.
ANZ538-010800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS 5 KT. WAVES FLAT.
SUN
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
MON
N WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.
ANZ539-010800-
CHESTER RIVER TO QUEENSTOWN MD-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
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.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
MON...NW WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 TO
2 FT.
ANZ532-010800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
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. A CHANCE OF SHOWERS.
SAT
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...E WINDS 5 TO 10 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS.
MON...NW WINDS 5 TO 10 KT
BECOMING N 20 TO 25 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT AFTER MIDNIGHT.
ANZ540-010800-
EASTERN BAY-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
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 WITH GUSTS 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.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...E WINDS 5 TO 10 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS.
MON...N WINDS 10 TO 15 KT
INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
ANZ533-010800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
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 WITH GUSTS
TO 25 KT AFTER MIDNIGHT. WAVES 1 FT... BUILDING TO 3 FT AFTER
MIDNIGHT.
SAT
N WINDS 15 TO 20 KT. GUSTS UP TO 25 KT IN THE MORNING. WAVES
2 TO 3 FT.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...E WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES 1 FT OR
LESS. A CHANCE OF SHOWERS.
MON...N WINDS 5 TO 10 KT
INCREASING TO 20 TO 25 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT.
ANZ541-010800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
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. A CHANCE OF SHOWERS.
SAT
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...E WINDS 5 TO 10 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS.
MON...NW WINDS 5 TO 10 KT
BECOMING N 20 TO 25 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT AFTER MIDNIGHT.
ANZ542-010800-
PATUXENT RIVER TO BROOMES ISLAND MD-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG AFTER MIDNIGHT
WITH VSBY 1 TO 3 NM.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT. PATCHY FOG. VSBY 1 TO
3 NM.
THU NIGHT
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.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
SUN
NE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
ANZ534-010800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 10 KT. WAVES 1 TO 2 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
THU NIGHT
S WINDS 10 TO 15 KT. WAVES 2 FT.
FRI
SW WINDS 10 TO 15 KT. WAVES 2 FT.
FRI NIGHT...SW WINDS 10 KT
BECOMING N 15 TO 20 KT AFTER MIDNIGHT.
WAVES 2 FT.
SAT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SAT NIGHT
NE WINDS 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON...N WINDS 5 TO 10 KT
INCREASING TO 20 TO 25 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT. A CHANCE OF SHOWERS IN THE MORNING.
ANZ543-010800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
757 PM EDT WED SEP 30 2026
TONIGHT
S WINDS 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
SW WINDS 10 TO 15 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT.
GUSTS UP TO 20 KT. WAVES 1 TO 2 FT.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON...N WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS IN THE MORNING.
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