154
FZUS51 KLWX 101927
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
327 PM EDT SAT OCT 10 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.
ANZ500-110830-
327 PM EDT SAT OCT 10 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
THE REMNANTS OF ISAIAS WILL MOVE ACROSS THE REGION LATE TONIGHT
THROUGH MONDAY MORNING. IN THE WAKE, HIGH PRESSURE BUILDS TO THE
SOUTH OF THE WATERS BEFORE A DRY COLD FRONT PUSHES THROUGH BY MID-
WEEK. GALE-FORCE WINDS POSSIBLE FOR SEVERAL HOURS SUNDAY MORNING,
MAINLY OVER SOUTHERN PORTIONS OF THE CHESAPEAKE BAY. ADDITIONAL
SMALL CRAFT ADVISORIES ARE LIKELY NEEDED FOR MONDAY AFTERNOON.
ANZ535-110830-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT SUNDAY THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
E WINDS 10 KT. WAVES 1 FT.
TONIGHT
E WINDS 5 TO 10 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
WAVES 1 FT. SHOWERS.
SUN
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT. SHOWERS
WITH A CHANCE OF TSTMS.
SUN NIGHT...SE WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. SHOWERS WITH A CHANCE OF TSTMS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-110830-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT SUNDAY THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
E WINDS 10 KT. WAVES 1 FT.
TONIGHT...E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO
25 KT LATE. WAVES 1 TO 2 FT. SHOWERS.
SUN...E WINDS 10 TO 15 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT IN THE AFTERNOON. WAVES 2 FT. SHOWERS WITH A CHANCE OF TSTMS.
SUN NIGHT...SE WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. SHOWERS WITH A CHANCE OF TSTMS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED...NW WINDS 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-110830-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
..GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...
REST OF THIS AFTERNOON
E WINDS 15 KT. WAVES 2 FT.
TONIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SHOWERS.
SUN...SE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT
DIMINISHING TO
10 TO 15 KT WITH GUSTS TO 20 KT LATE. WAVES 4 FT. SHOWERS WITH A
CHANCE OF TSTMS.
SUN NIGHT
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY
WITH A CHANCE OF TSTMS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS
LIKELY.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-110830-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT SUNDAY THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
E WINDS 10 KT. WAVES 1 FT.
TONIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT. SHOWERS
WITH A CHANCE OF TSTMS.
SUN NIGHT...E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING NE
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF
TSTMS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS AND TSTMS.
MON NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-110830-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EDT THIS EVENING THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
E WINDS 10 KT. WAVES 1 FT.
TONIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS LIKELY.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. SHOWERS
WITH A CHANCE OF TSTMS.
SUN NIGHT...E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING N
10 TO 15 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE
OF TSTMS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS
BUILDING TO 2 FT.
WED
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-110830-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT SUNDAY THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
E WINDS 10 KT. WAVES 1 FT.
TONIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
SUN
E WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. SHOWERS WITH A
CHANCE OF TSTMS.
SUN NIGHT...E WINDS 10 TO 15 KT
BECOMING N 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE
OF TSTMS.
MON
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-110830-
CHESTER RIVER TO QUEENSTOWN MD-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT SUNDAY THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
E WINDS 10 KT. WAVES 1 FT.
TONIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT. SHOWERS
WITH A CHANCE OF TSTMS.
SUN NIGHT...SE WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS.
MON NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED...W WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-110830-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EDT THIS EVENING THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
E WINDS 10 KT. WAVES 1 FT.
TONIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
SHOWERS.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. SHOWERS
WITH A CHANCE OF TSTMS.
SUN NIGHT...SE 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 WITH A CHANCE OF TSTMS.
MON
NW WINDS 15 TO 20 KT. WAVES 2 FT. SHOWERS.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...SW WINDS 10 TO 15 KT. WAVES 1 FT OR LESS
BUILDING TO 2 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-110830-
EASTERN BAY-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT SUNDAY THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
E WINDS 10 KT. WAVES 1 FT.
TONIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT. SHOWERS
WITH A CHANCE OF TSTMS.
SUN NIGHT...SE WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED...W WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-110830-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EDT THIS EVENING THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
E WINDS 10 KT. WAVES 1 FT.
TONIGHT...E WINDS 15 TO 20 KT. GUSTS UP TO 25 KT
INCREASING TO
30 KT LATE. WAVES 2 TO 3 FT. SHOWERS.
SUN
SE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT. SHOWERS
WITH A CHANCE OF TSTMS.
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 WITH A CHANCE OF TSTMS.
MON
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-110830-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT SUNDAY THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
E WINDS 10 KT. WAVES 1 FT.
TONIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
SUN
E WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT. SHOWERS
WITH A CHANCE OF TSTMS.
SUN NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
NW WINDS 15 TO 20 KT. WAVES 2 FT. SHOWERS LIKELY.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 10 TO 15 KT. WAVES 1 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-110830-
PATUXENT RIVER TO BROOMES ISLAND MD-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT SUNDAY THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
E WINDS 10 KT. WAVES 1 FT.
TONIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SHOWERS.
SUN...SE WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT LATE. WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-110830-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
..GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...
REST OF THIS AFTERNOON
E WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
E WINDS 20 TO 25 KT. GUSTS UP TO 30 KT. WAVES 3 FT.
SHOWERS.
SUN...SE WINDS 20 TO 25 KT. GUSTS UP TO 35 KT
DIMINISHING TO
25 KT LATE. WAVES 5 FT. SHOWERS WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING SW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 TO 3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
TUE...W WINDS 5 KT
BECOMING S 10 TO 15 KT. WAVES 1 TO 2 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-110830-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
327 PM EDT SAT OCT 10 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
..GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...
REST OF THIS AFTERNOON
E WINDS 15 KT. WAVES 1 FT.
TONIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SHOWERS LIKELY.
SUN...SE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT
DIMINISHING TO
10 TO 15 KT WITH GUSTS TO 25 KT LATE. WAVES 3 FT. SHOWERS WITH A
CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING SW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT.
TUE...W WINDS 5 KT
BECOMING S 10 TO 15 KT. WAVES 1 FT.
WED...W WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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