216
FZUS51 KLWX 152058
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 PM EDT SAT AUG 15 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.
ANZ500-160800-
457 PM EDT SAT AUG 15 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A STALLED FRONTAL BOUNDARY WILL LINGER TO THE SOUTH THROUGH TONIGHT,
THEN RETURN NORTHWARD AS A WARM FRONT SUNDAY. A COLD FRONT MOVES
THROUGH ON MONDAY. HIGH PRESSURE APPROACHES FROM THE WEST TUESDAY
INTO WEDNESDAY.
ANZ535-160800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING AND
AFTERNOON. WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.
SUN NIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS WITH A CHANCE OF TSTMS.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
NW WINDS AROUND 5 KT. WAVES 1 FT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-160800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...
REST OF THIS AFTERNOON
E WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING AND
AFTERNOON. WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.
SUN NIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS WITH A CHANCE OF TSTMS.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-160800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...
REST OF THIS AFTERNOON
E WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED...W WINDS AROUND 5 KT
BECOMING S. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-160800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...
REST OF THIS AFTERNOON
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT. GUSTS UP TO 25 KT. WAVES 1 FT. SHOWERS
WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING SW AFTER MIDNIGHT. GUSTS
UP TO 25 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WED...W WINDS AROUND 5 KT
BECOMING SW. WAVES 1 FT. A CHANCE OF
SHOWERS AND TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-160800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...
REST OF THIS AFTERNOON
NE WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
SHOWERS WITH A CHANCE OF TSTMS.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
W WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-160800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...
REST OF THIS AFTERNOON
E WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
WITH A CHANCE OF TSTMS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
NW WINDS AROUND 5 KT. WAVES FLAT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-160800-
CHESTER RIVER TO QUEENSTOWN MD-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 10 TO 15 KT. GUSTS UP TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED...SW WINDS AROUND 5 KT
BECOMING S. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-160800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...
REST OF THIS AFTERNOON
E WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT
BUILDING TO 4 FT IN THE AFTERNOON. SHOWERS WITH A CHANCE OF TSTMS.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
W WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED...SW WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT IN THE EVENING,
THEN BECOMING SW AFTER MIDNIGHT. WAVES 1 FT OR LESS...BUILDING TO
2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-160800-
EASTERN BAY-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
MON
W WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED...SW WINDS AROUND 5 KT
BECOMING S. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-160800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...
REST OF THIS AFTERNOON
E WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
SHOWERS WITH A CHANCE OF TSTMS.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS WITH A CHANCE OF TSTMS.
MON
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED...W WINDS 5 KT...BECOMING S 10 TO 15 KT. WAVES 1 FT OR LESS
BUILDING TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-160800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
MON
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED...SW WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT. WAVES 1 FT OR
LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-160800-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...
REST OF THIS AFTERNOON
E WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
WITH A CHANCE OF TSTMS.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE
NW WINDS AROUND 5 KT. WAVES 1 FT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-160800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...
REST OF THIS AFTERNOON
SE WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT
BUILDING TO 4 FT IN THE AFTERNOON. SHOWERS LIKELY WITH A CHANCE OF
TSTMS.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE MORNING. WAVES
3 FT...SUBSIDING TO 1 FT IN THE AFTERNOON.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED...NW WINDS AROUND 5 KT
BECOMING S 10 TO 15 KT. WAVES 1 FT OR
LESS...BUILDING TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-160800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 PM EDT SAT AUG 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
SE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE MORNING. WAVES
1 TO 2 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED...NW WINDS 5 KT...BECOMING S 10 TO 15 KT. WAVES 1 FT OR LESS
BUILDING TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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