539
FZUS51 KLWX 242358
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
757 PM EDT FRI JUL 24 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.
ANZ500-250800-
757 PM EDT FRI JUL 24 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD IN FROM THE WEST THROUGHOUT TODAY BEFORE
MOVING OFF THE NEW ENGLAND COAST THIS WEEKEND. THE NEXT FRONTAL
SYSTEM MAY APPROACH BY EARLY NEXT WEEK.
ANZ535-250800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
757 PM EDT FRI JUL 24 2026
TONIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
SHOWERS WITH A CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-250800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
757 PM EDT FRI JUL 24 2026
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
SAT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
S WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-250800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
757 PM EDT FRI JUL 24 2026
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
SAT
E WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...SW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-250800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
757 PM EDT FRI JUL 24 2026
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN
NE WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE...S WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-250800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
757 PM EDT FRI JUL 24 2026
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN
E WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
MON NIGHT
S WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-250800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
757 PM EDT FRI JUL 24 2026
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN
E WINDS 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS 5 KT. WAVES FLAT.
MON
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE...S WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
SHOWERS WITH A CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-250800-
CHESTER RIVER TO QUEENSTOWN MD-
757 PM EDT FRI JUL 24 2026
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN
N WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE...S WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-250800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
757 PM EDT FRI JUL 24 2026
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SW WINDS 5 KT
BECOMING S 10 TO 15 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS AND TSTMS.
TUE...S WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES 1 TO
2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-250800-
EASTERN BAY-
757 PM EDT FRI JUL 24 2026
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN
N WINDS 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE...S WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-250800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
757 PM EDT FRI JUL 24 2026
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON...S WINDS 5 KT
INCREASING TO 10 TO 15 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...SW WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-250800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
757 PM EDT FRI JUL 24 2026
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
N WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
TUE...S WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS
LIKELY WITH A CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-250800-
PATUXENT RIVER TO BROOMES ISLAND MD-
757 PM EDT FRI JUL 24 2026
TONIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT. A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
SAT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
NE WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
MON
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-250800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
757 PM EDT FRI JUL 24 2026
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SW WINDS 5 KT
BECOMING S 10 TO 15 KT WITH GUSTS TO 20 KT IN
THE AFTERNOON. WAVES 1 TO 2 FT.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...SW WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES 2 TO
3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
WED
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-250800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
757 PM EDT FRI JUL 24 2026
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SW WINDS 5 KT
BECOMING S 10 TO 15 KT WITH GUSTS TO 20 KT IN
THE AFTERNOON. WAVES 1 FT.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...SW WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES 2 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
WED
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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