064
FZUS51 KLWX 190626
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
226 AM EDT SAT SEP 19 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.
ANZ500-192000-
226 AM EDT SAT SEP 19 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE BRIEFLY WILL BUILD OVER THE NORTHEASTERN U.S. ON
SATURDAY BEFORE A FRONTAL SYSTEM LOOMS NEARBY ON SUNDAY AND INTO
EARLY NEXT WEEK. WIND GUSTS REMAIN ELEVATED AT TIMES SATURDAY NIGHT
THROUGH WEDNESDAY, WHICH MAY PROMPT SMALL CRAFT ADVISORIES.
ANZ535-192000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
226 AM EDT SAT SEP 19 2026
OVERNIGHT
NE WINDS 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES
1 FT. SHOWERS LIKELY.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
WED
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ536-192000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
226 AM EDT SAT SEP 19 2026
OVERNIGHT
NE WINDS 10 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT...SE WINDS 10 TO 15 KT
BECOMING S 5 TO 10 KT LATE.
WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. SHOWERS LIKELY.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
WED
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
ANZ537-192000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
226 AM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE
TONIGHT...
OVERNIGHT
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING E 5 TO
10 KT LATE. WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
TUE...NE WINDS 20 TO 25 KT. WAVES 3 FT
BUILDING TO 5 FT. A CHANCE
OF SHOWERS.
WED
NE WINDS 25 TO 30 KT. WAVES 5 FT. A CHANCE OF SHOWERS.
ANZ530-192000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
226 AM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING
OVERNIGHT
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 KT LATE. WAVES 1 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT.
GUSTS UP TO 20 KT. WAVES 1 FT. SHOWERS LIKELY.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
ANZ531-192000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
226 AM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING
OVERNIGHT
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 TO 2 FT.
SAT NIGHT...E WINDS 15 TO 20 KT
BECOMING SE 10 TO 15 KT AFTER
MIDNIGHT. WAVES 2 FT.
SUN
S WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. WAVES 2 FT. SHOWERS LIKELY.
MON
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 4 FT. A CHANCE OF SHOWERS.
ANZ538-192000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
226 AM EDT SAT SEP 19 2026
OVERNIGHT
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT...E WINDS 10 TO 15 KT
BECOMING SE AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SHOWERS LIKELY.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
ANZ539-192000-
CHESTER RIVER TO QUEENSTOWN MD-
226 AM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING
OVERNIGHT
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 KT IN THE AFTERNOON. WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 15 TO 20 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
ANZ532-192000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
226 AM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING
OVERNIGHT
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 TO 2 FT.
SAT NIGHT...E WINDS 10 TO 15 KT
BECOMING SE IN THE LATE EVENING
AND OVERNIGHT. GUSTS UP TO 20 KT. WAVES 2 FT.
SUN
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. WAVES 2 FT. SHOWERS LIKELY.
MON
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 25 TO 30 KT. WAVES 4 FT. A CHANCE OF SHOWERS.
ANZ540-192000-
EASTERN BAY-
226 AM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING
OVERNIGHT
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 KT IN THE AFTERNOON. WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 FT. SHOWERS LIKELY.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
ANZ533-192000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
226 AM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING
OVERNIGHT
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING N 5 TO
10 KT IN THE AFTERNOON. WAVES 1 TO 2 FT.
SAT NIGHT...E WINDS 10 TO 15 KT
BECOMING SE IN THE LATE EVENING
AND OVERNIGHT. GUSTS UP TO 20 KT. WAVES 2 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. WAVES 2 FT. SHOWERS LIKELY.
MON
NE WINDS 15 TO 20 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF
SHOWERS.
TUE...NE WINDS 25 TO 30 KT. WAVES 3 FT
BUILDING TO 4 FT. A CHANCE
OF SHOWERS.
WED
NE WINDS 25 TO 30 KT. WAVES 4 FT. A CHANCE OF SHOWERS.
ANZ541-192000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
226 AM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING
OVERNIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING N 5 TO
10 KT IN THE AFTERNOON. WAVES 1 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 FT. SHOWERS LIKELY.
MON
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
ANZ542-192000-
PATUXENT RIVER TO BROOMES ISLAND MD-
226 AM EDT SAT SEP 19 2026
OVERNIGHT
NE WINDS 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...S WINDS 5 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
SHOWERS LIKELY.
MON
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 15 TO 20 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ534-192000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
226 AM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE
TONIGHT...
OVERNIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT LATE. WAVES
1 TO 2 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SE 5 TO
10 KT LATE. WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 2 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 4 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 25 TO 30 KT. WAVES 5 FT. A CHANCE OF SHOWERS.
ANZ543-192000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
226 AM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE
TONIGHT...
OVERNIGHT
NE WINDS 10 KT. GUSTS UP TO 20 KT LATE. WAVES 1 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SE 5 TO
10 KT LATE. WAVES 1 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 1 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS.
MON NIGHT
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
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