301
FZUS51 KLWX 180535
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
135 AM EDT FRI JUL 18 2025
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.
ANZ500-182000-
135 AM EDT FRI JUL 18 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT WILL MOVE OVER THE WATERS TONIGHT. ANOTHER COLD FRONT
MAY MOVE OVER THE WATERS SUNDAY NIGHT. SMALL CRAFT ADVISORIES MAY BE
NEEDED THURSDAY NIGHT FOR PORTIONS OF THE WATERS.
ANZ535-182000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED SHOWERS AND
TSTMS. VSBY 1 NM OR LESS.
FRI NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS AND TSTMS. VSBY 1 NM OR LESS.
SAT
S WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
SAT NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
N WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SE WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-182000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT. SCATTERED SHOWERS AND
TSTMS. VSBY 1 NM OR LESS.
FRI NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS AND TSTMS. VSBY 1 NM OR LESS.
SAT
S WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
NE WINDS AROUND 5 KT. WAVES 1 FT.
TUE
E WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-182000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
W WINDS 10 KT. WAVES 1 FT.
FRI...NE WINDS 5 TO 10 KT
BECOMING E LATE. WAVES 1 FT. SCATTERED
SHOWERS AND TSTMS.
FRI NIGHT
S WINDS 5 KT. WAVES FLAT. NUMEROUS SHOWERS AND
SCATTERED TSTMS. VSBY 1 NM OR LESS.
SAT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...E WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-182000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND
TSTMS. VSBY 1 NM OR LESS.
SAT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
SE WINDS 5 KT. WAVES FLAT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-182000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND
TSTMS.
SAT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...E WINDS 5 KT
BECOMING SE. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-182000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
N WINDS 5 KT. WAVES FLAT.
FRI NIGHT
S WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND
TSTMS.
SAT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS.
SUN NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
N WINDS 5 KT. WAVES FLAT.
TUE
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-182000-
CHESTER RIVER TO QUEENSTOWN MD-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND
TSTMS.
SAT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
E WINDS 5 KT. WAVES LESS THAN 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-182000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 KT. WAVES FLAT. SCATTERED SHOWERS AND TSTMS.
SAT
S WINDS 5 KT. WAVES LESS THAN 1 FT. NUMEROUS SHOWERS WITH A
CHANCE OF TSTMS.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...E WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-182000-
EASTERN BAY-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND
TSTMS.
SAT
S WINDS 5 KT. WAVES LESS THAN 1 FT. NUMEROUS SHOWERS WITH A
CHANCE OF TSTMS.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE...E WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-182000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 KT. WAVES FLAT. SCATTERED SHOWERS AND TSTMS.
VSBY 1 NM OR LESS.
SAT
S WINDS 5 KT. WAVES LESS THAN 1 FT. NUMEROUS SHOWERS WITH A
CHANCE OF TSTMS.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...E WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-182000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND
TSTMS. VSBY 1 NM OR LESS.
SAT
S WINDS 5 KT. WAVES LESS THAN 1 FT. NUMEROUS SHOWERS WITH A
CHANCE OF TSTMS.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...E WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-182000-
PATUXENT RIVER TO BROOMES ISLAND MD-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT. NUMEROUS SHOWERS AND
SCATTERED TSTMS. VSBY 1 NM OR LESS.
SAT
S WINDS AROUND 5 KT. WAVES 1 FT. NUMEROUS SHOWERS WITH A
CHANCE OF TSTMS.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS 5 KT. WAVES LESS THAN 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-182000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
W WINDS 10 KT. WAVES 1 TO 2 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. NUMEROUS SHOWERS
AND SCATTERED TSTMS. VSBY 1 NM OR LESS.
SAT
S WINDS 5 KT. WAVES LESS THAN 1 FT. NUMEROUS SHOWERS WITH A
CHANCE OF TSTMS.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...E WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-182000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
135 AM EDT FRI JUL 18 2025
OVERNIGHT
W WINDS 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. NUMEROUS SHOWERS
AND SCATTERED TSTMS.
SAT
S WINDS 5 KT. WAVES LESS THAN 1 FT. NUMEROUS SHOWERS WITH A
CHANCE OF TSTMS.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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