585
FZUS51 KLWX 301157
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
757 AM EDT SUN AUG 30 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.
ANZ500-302000-
757 AM EDT SUN AUG 30 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD SOUTH OF THE WATERS THROUGH MID WEEK WITH
SCATTERED DIURNAL SHOWERS AND THUNDERSTORMS EXPECTED IN A HOT AND
HUMID AIR MASS.
ANZ535-302000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
757 AM EDT SUN AUG 30 2026
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT. ISOLATED SHOWERS AND TSTMS
THIS AFTERNOON.
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
W WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
TUE
W WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS
THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-302000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
757 AM EDT SUN AUG 30 2026
TODAY
S WINDS 5 KT. WAVES LESS THAN 1 FT. ISOLATED SHOWERS AND
TSTMS THIS AFTERNOON.
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
W WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
THU
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-302000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
757 AM EDT SUN AUG 30 2026
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON...SW WINDS 5 TO 10 KT
BECOMING SE LATE. WAVES 1 FT.
MON NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
SW WINDS 5 KT. WAVES FLAT.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED...N WINDS 5 KT
BECOMING S. WAVES 1 FT OR LESS.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
ANZ530-302000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
757 AM EDT SUN AUG 30 2026
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. ISOLATED SHOWERS
AND TSTMS THIS AFTERNOON.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS AROUND 5 KT. WAVES FLAT.
MON NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
TUE
SW WINDS 5 KT. WAVES FLAT.
TUE NIGHT
W WINDS 5 KT. WAVES FLAT.
WED
S WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND TSTMS
THROUGH THE NIGHT.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF TSTMS
THROUGH THE NIGHT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-302000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
757 AM EDT SUN AUG 30 2026
TODAY...S WINDS 5 TO 10 KT
INCREASING TO 15 KT WITH GUSTS TO
20 KT LATE. WAVES 1 TO 2 FT. ISOLATED SHOWERS AND TSTMS THIS
AFTERNOON.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON NIGHT
S WINDS 5 KT. WAVES FLAT.
TUE
SW WINDS 5 KT. WAVES FLAT.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED...W WINDS 5 KT
BECOMING SE. WAVES 1 FT OR LESS.
THU...SW WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. 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.
ANZ538-302000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
757 AM EDT SUN AUG 30 2026
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. ISOLATED SHOWERS
AND TSTMS THIS AFTERNOON.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
E WINDS 5 KT. WAVES FLAT.
MON NIGHT
S WINDS 5 KT. WAVES FLAT.
TUE
SW WINDS 5 KT. WAVES FLAT.
TUE NIGHT
W WINDS 5 KT. WAVES FLAT.
WED
S WINDS AROUND 5 KT. WAVES FLAT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF TSTMS
THROUGH THE NIGHT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-302000-
CHESTER RIVER TO QUEENSTOWN MD-
757 AM EDT SUN AUG 30 2026
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT. ISOLATED SHOWERS AND TSTMS
THIS AFTERNOON.
TONIGHT
S WINDS 10 KT. WAVES 1 FT.
MON
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
SE WINDS 5 KT. WAVES FLAT.
TUE
SW WINDS 5 KT. WAVES FLAT.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF TSTMS
THROUGH THE NIGHT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-302000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
757 AM EDT SUN AUG 30 2026
TODAY
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. ISOLATED SHOWERS AND
TSTMS THIS AFTERNOON.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT LATE. WAVES
2 FT.
MON...W WINDS 5 TO 10 KT
BECOMING SE IN THE LATE MORNING AND
AFTERNOON. WAVES 1 FT OR LESS.
MON NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
SW WINDS 5 KT. WAVES FLAT.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED...SW WINDS 5 KT
BECOMING SE. WAVES 1 FT OR LESS.
THU
SW 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.
ANZ540-302000-
EASTERN BAY-
757 AM EDT SUN AUG 30 2026
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT. ISOLATED SHOWERS AND TSTMS
THIS AFTERNOON.
TONIGHT
S WINDS 10 KT. WAVES 1 FT.
MON
W WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
S WINDS 5 KT. WAVES FLAT.
TUE
SW WINDS 5 KT. WAVES FLAT.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF TSTMS
THROUGH THE NIGHT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-302000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
757 AM EDT SUN AUG 30 2026
TODAY
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT THIS AFTERNOON. WAVES
1 TO 2 FT. ISOLATED SHOWERS AND TSTMS THIS AFTERNOON.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT LATE. GUSTS
UP TO 20 KT. WAVES 2 FT.
MON...W WINDS 5 TO 10 KT
BECOMING E IN THE AFTERNOON. WAVES 1 FT
OR LESS.
MON NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED...SW WINDS 5 KT
BECOMING SE. WAVES 1 FT OR LESS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-302000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
757 AM EDT SUN AUG 30 2026
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. ISOLATED SHOWERS
AND TSTMS THIS AFTERNOON.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON NIGHT
S WINDS 5 KT. WAVES FLAT.
TUE
SW WINDS 5 KT. WAVES FLAT.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED...SW WINDS 5 KT
BECOMING SE. WAVES 1 FT OR LESS.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF TSTMS
THROUGH THE NIGHT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-302000-
PATUXENT RIVER TO BROOMES ISLAND MD-
757 AM EDT SUN AUG 30 2026
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
S WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
ANZ534-302000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
757 AM EDT SUN AUG 30 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
TODAY
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 2 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ543-302000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
757 AM EDT SUN AUG 30 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 2 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED...N WINDS 5 KT
BECOMING S. WAVES 1 FT OR LESS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
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