317
FZUS51 KLWX 180838
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
438 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.
ANZ500-182300-
438 AM EDT FRI JUL 18 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A FRONT STALLS ACROSS THE AREA TODAY, THEN RETURNS NORTH AS A WARM
FRONT ON SATURDAY. A STRONGER COLD FRONT MOVES THROUGH THE AREA
SUNDAY NIGHT. DAILY SHOWER AND THUNDERSTORM CHANCES CONTINUE THROUGH
THE WEEKEND, WITH ANY STRONGER THUNDERSTORM POSING A RISK TO
MARINERS. SMALL CRAFT ADVISORIES MAY BE NEEDED SUNDAY NIGHT INTO
MONDAY MORNING.
ANZ535-182300-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED SHOWERS AND
TSTMS.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS AND TSTMS.
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.
ANZ536-182300-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
NE WINDS AROUND 5 KT. WAVES 1 FT. SCATTERED SHOWERS AND
TSTMS.
TONIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS AND TSTMS.
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.
ANZ537-182300-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
TODAY...NE WINDS 5 TO 10 KT
BECOMING E LATE. WAVES 1 FT.
SCATTERED SHOWERS AND TSTMS.
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. NUMEROUS SHOWERS AND
SCATTERED TSTMS.
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.
ANZ530-182300-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
N WINDS 10 KT. WAVES 1 FT.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
S WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND
TSTMS. VSBY 1 NM OR LESS.
SAT
SE WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND TSTMS.
SAT NIGHT
S WINDS 5 KT. WAVES FLAT. 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.
ANZ531-182300-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
N WINDS 10 KT. WAVES 1 FT.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
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.
ANZ538-182300-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES FLAT.
TODAY
N WINDS 5 KT. WAVES FLAT.
TONIGHT
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 LESS THAN 1 FT.
TUE
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-182300-
CHESTER RIVER TO QUEENSTOWN MD-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
N WINDS 10 KT. WAVES 1 FT.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND
TSTMS.
SAT
SE WINDS 5 KT. WAVES FLAT. 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.
TUE
E WINDS 5 KT. WAVES LESS THAN 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-182300-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
N WINDS 10 KT. WAVES 1 FT.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
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.
ANZ540-182300-
EASTERN BAY-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
N WINDS 10 KT. WAVES 1 FT.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
S WINDS AROUND 5 KT. WAVES FLAT. SCATTERED SHOWERS AND
TSTMS.
SAT
S WINDS 5 KT. WAVES FLAT. 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
OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-182300-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
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
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.
ANZ541-182300-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
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.
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.
ANZ542-182300-
PATUXENT RIVER TO BROOMES ISLAND MD-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TODAY
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
S WINDS AROUND 5 KT. WAVES 1 FT. NUMEROUS SHOWERS AND
SCATTERED TSTMS.
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.
ANZ534-182300-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
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
NE WINDS 5 TO 10 KT. WAVES 1 TO 2 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.
ANZ543-182300-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
438 AM EDT FRI JUL 18 2025
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
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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