622
FZUS51 KLWX 290628
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
227 AM EDT WED JUL 29 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.
ANZ500-292000-
227 AM EDT WED JUL 29 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
WEAK HIGH PRESSURE WILL SLOWLY BUILD IN FROM THE WEST THROUGH FRIDAY
AS LOW PRESSURE GRADUALLY MOVES AWAY FROM NEW ENGLAND. SMALL CRAFT
ADVISORIES MAY NEED TO BE EXTENDED THROUGH THURSDAY NIGHT.
ANZ535-292000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
228 AM EDT WED JUL 29 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH
THIS AFTERNOON...
OVERNIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ536-292000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
228 AM EDT WED JUL 29 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH
THIS AFTERNOON...
OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
WED
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 10 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ537-292000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
228 AM EDT WED JUL 29 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH
THIS AFTERNOON...
OVERNIGHT
W WINDS 10 TO 15 KT. WAVES 1 FT.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 KT. WAVES 1 TO 2 FT.
THU
NW WINDS 10 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT...S WINDS AROUND 5 KT...BECOMING SE 10 TO 15 KT. WAVES FLAT
BUILDING TO 2 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
ANZ530-292000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
228 AM EDT WED JUL 29 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH
THIS AFTERNOON...
OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF TSTMS THROUGH
THE NIGHT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-292000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
228 AM EDT WED JUL 29 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH
THIS AFTERNOON...
OVERNIGHT
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
SLIGHT CHANCE OF SHOWERS.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SAT...S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS
BUILDING TO 2 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF TSTMS
THROUGH THE NIGHT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-292000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
228 AM EDT WED JUL 29 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH
THIS AFTERNOON...
OVERNIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 10 KT. WAVES 1 FT.
THU
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
N WINDS 5 KT. WAVES FLAT.
FRI NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF TSTMS THROUGH THE
NIGHT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-292000-
CHESTER RIVER TO QUEENSTOWN MD-
228 AM EDT WED JUL 29 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH
THIS AFTERNOON...
OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT. A SLIGHT CHANCE OF SHOWERS.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF TSTMS THROUGH THE
NIGHT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-292000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
228 AM EDT WED JUL 29 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH
THIS AFTERNOON...
OVERNIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT...S WINDS 5 KT...INCREASING TO 10 TO 15 KT. WAVES 1 TO 2 FT
BUILDING TO 2 TO 3 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SUN...S WINDS 10 TO 15 KT. WAVES 1 FT
BUILDING TO 3 FT IN THE
AFTERNOON AND EVENING, THEN SUBSIDING TO 1 FT AFTER MIDNIGHT. A
CHANCE OF SHOWERS.
ANZ540-292000-
EASTERN BAY-
228 AM EDT WED JUL 29 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH
THIS AFTERNOON...
OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SAT
S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ533-292000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
228 AM EDT WED JUL 29 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH
THIS AFTERNOON...
OVERNIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT...S WINDS 5 KT...INCREASING TO 10 TO 15 KT. WAVES 1 TO 2 FT
BUILDING TO 2 TO 3 FT.
SUN...S WINDS 10 TO 15 KT. WAVES 1 FT
BUILDING TO 3 FT IN THE
AFTERNOON AND EVENING, THEN SUBSIDING TO 1 FT AFTER MIDNIGHT. A
CHANCE OF SHOWERS.
ANZ541-292000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
228 AM EDT WED JUL 29 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH
THIS AFTERNOON...
OVERNIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT...S WINDS 5 KT
INCREASING TO 10 TO 15 KT. WAVES 1 FT OR
LESS...BUILDING TO 1 TO 2 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
ANZ542-292000-
PATUXENT RIVER TO BROOMES ISLAND MD-
228 AM EDT WED JUL 29 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH
THIS AFTERNOON...
OVERNIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ534-292000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
228 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
OVERNIGHT
W WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A SLIGHT
CHANCE OF SHOWERS.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT...S WINDS 5 KT...INCREASING TO 10 TO 15 KT. WAVES 1 TO 2 FT
BUILDING TO 3 FT.
SUN...S WINDS 10 TO 15 KT. WAVES 1 FT
BUILDING TO 2 TO 3 FT. A
CHANCE OF SHOWERS.
ANZ543-292000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
228 AM EDT WED JUL 29 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
OVERNIGHT
W WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A SLIGHT
CHANCE OF SHOWERS.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT...S WINDS 5 KT
INCREASING TO 10 TO 15 KT. WAVES 1 TO 2 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
THROUGH THE NIGHT. A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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