043
FZUS51 KLWX 091941
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
340 PM EDT FRI OCT 9 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.
ANZ500-100800-
340 PM EDT FRI OCT 9 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD OVERHEAD THROUGH SATURDAY. THE REMNANTS OF
ISAIAS WILL APPROACH BY SUNDAY, WITH SMALL CRAFT ADVISORIES LIKELY
SATURDAY NIGHT THROUGH SUNDAY. GALE-FORCE WINDS CANNOT BE RULED OUT
DURING THIS TIME, EITHER. ADDITIONAL SMALL CRAFT ADVISORIES MAY BE
NEEDED DURING PORTIONS OF MONDAY BEHIND ISAIAS.
ANZ535-100800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
RAIN LIKELY.
SUN
E WINDS 10 TO 15 KT WITH GUSTS TO 30 KT. WAVES 1 FT. RAIN.
SUN NIGHT...SE WINDS 5 TO 10 KT WITH GUSTS TO 25 KT
BECOMING W
AFTER MIDNIGHT. WAVES 1 FT. SHOWERS LIKELY.
MON...NW WINDS 10 TO 15 KT
BECOMING W AROUND 5 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF SHOWERS IN THE MORNING.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-100800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. RAIN LIKELY.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. RAIN.
SUN NIGHT...SE WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. SHOWERS LIKELY.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-100800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY EVENING THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES FLAT.
TONIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SAT NIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT. RAIN LIKELY.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 4 FT. RAIN.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING SW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT. SHOWERS
LIKELY.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
TUE
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ530-100800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
N WINDS AROUND 5 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
RAIN.
SUN NIGHT...E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING N
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF
TSTMS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF SHOWERS IN THE MORNING.
TUE...SW WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-100800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
W WINDS 10 KT. WAVES 1 FT.
TONIGHT
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. RAIN LIKELY.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
RAIN.
SUN NIGHT...E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING NW
5 TO 10 KT AFTER MIDNIGHT. WAVES 3 FT... SUBSIDING TO 1 FT AFTER
MIDNIGHT. SHOWERS WITH A CHANCE OF TSTMS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN THE MORNING.
TUE...SW WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-100800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
NW WINDS 10 KT. WAVES FLAT.
TONIGHT
N WINDS AROUND 5 KT. WAVES FLAT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
RAIN LIKELY.
SUN
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. RAIN.
SUN NIGHT...E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING N
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF
TSTMS.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
IN THE MORNING.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-100800-
CHESTER RIVER TO QUEENSTOWN MD-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
N WINDS AROUND 5 KT. WAVES FLAT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
RAIN LIKELY.
SUN
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. RAIN.
SUN NIGHT...SE WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE
OF TSTMS.
MON
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING.
TUE
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-100800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT.
TONIGHT
N WINDS 5 KT. WAVES FLAT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
RAIN LIKELY.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. RAIN.
SUN NIGHT...SE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING SW
10 KT AFTER MIDNIGHT. WAVES 3 FT... SUBSIDING TO 1 FT AFTER
MIDNIGHT. SHOWERS.
MON
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING.
TUE...SW WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
ANZ540-100800-
EASTERN BAY-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
SW WINDS 5 KT. WAVES FLAT.
TONIGHT
N WINDS AROUND 5 KT. WAVES FLAT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
RAIN LIKELY.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. RAIN.
SUN NIGHT...SE WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF SHOWERS IN THE MORNING.
TUE
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ533-100800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
S WINDS 5 KT. WAVES FLAT.
TONIGHT
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
RAIN LIKELY.
SUN
E WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT. RAIN.
SUN NIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING SW
10 TO 15 KT AFTER MIDNIGHT. WAVES 3 FT... SUBSIDING TO 1 FT AFTER
MIDNIGHT. SHOWERS LIKELY.
MON
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING.
TUE...SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT
BUILDING TO 3 FT
AFTER MIDNIGHT.
ANZ541-100800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
SW WINDS 5 KT. WAVES FLAT.
TONIGHT
NE WINDS AROUND 5 KT. WAVES FLAT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. RAIN LIKELY.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. RAIN.
SUN NIGHT...SE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING SW
AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN THE MORNING.
TUE
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ542-100800-
PATUXENT RIVER TO BROOMES ISLAND MD-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
RAIN LIKELY.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT. RAIN.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SHOWERS LIKELY.
MON...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF SHOWERS IN THE MORNING.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-100800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY EVENING THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
S WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 TO 2 FT.
SAT NIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT. RAIN LIKELY.
SUN
E WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 5 FT. RAIN.
SUN NIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING SW
10 TO 15 KT AFTER MIDNIGHT. WAVES 4 FT... SUBSIDING TO 2 FT AFTER
MIDNIGHT. SHOWERS LIKELY.
MON...NW WINDS 10 TO 15 KT. WAVES 2 TO 3 FT
SUBSIDING TO 1 FT
AFTER MIDNIGHT. A CHANCE OF SHOWERS IN THE MORNING.
TUE
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ543-100800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
340 PM EDT FRI OCT 9 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY EVENING THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
W WINDS 5 KT. WAVES FLAT.
TONIGHT...SE WINDS AROUND 5 KT
BECOMING E LATE. WAVES 1 FT OR
LESS.
SAT
E WINDS 10 TO 15 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. RAIN LIKELY.
SUN
E WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT. RAIN.
SUN NIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 FT. SHOWERS LIKELY.
MON...NW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS IN THE MORNING.
TUE
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
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