824
FZUS51 KLWX 231211
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
811 AM EDT THU JUL 23 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.
ANZ500-232000-
811 AM EDT THU JUL 23 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD IN FROM THE WEST THROUGH FRIDAY BEFORE
MOVING OFF THE NEW ENGLAND COAST THIS WEEKEND. THE NEXT FRONTAL
SYSTEM MAY APPROACH BY EARLY NEXT WEEK.
ANZ535-232000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
811 AM EDT THU JUL 23 2026
TODAY
N WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-232000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
811 AM EDT THU JUL 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
TODAY
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY THIS MORNING.
WAVES 1 FT.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT.
ANZ537-232000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
811 AM EDT THU JUL 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
TODAY
N WINDS 10 KT. GUSTS UP TO 20 KT EARLY THIS MORNING. WAVES
1 TO 2 FT.
TONIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ530-232000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
811 AM EDT THU JUL 23 2026
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
NE WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES FLAT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS AROUND 5 KT. WAVES FLAT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS AROUND 5 KT. WAVES FLAT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-232000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
811 AM EDT THU JUL 23 2026
TODAY
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TONIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-232000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
811 AM EDT THU JUL 23 2026
TODAY
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
NE WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS AROUND 5 KT. WAVES FLAT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS AROUND 5 KT. WAVES FLAT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-232000-
CHESTER RIVER TO QUEENSTOWN MD-
811 AM EDT THU JUL 23 2026
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS 5 KT. WAVES FLAT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 5 KT. WAVES FLAT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-232000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
811 AM EDT THU JUL 23 2026
TODAY...N WINDS 10 TO 15 KT
BECOMING NE 5 KT LATE. WAVES 1 TO
2 FT.
TONIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...SE WINDS 5 TO 10 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-232000-
EASTERN BAY-
811 AM EDT THU JUL 23 2026
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-232000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
811 AM EDT THU JUL 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
TODAY
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT EARLY THIS MORNING.
WAVES 1 TO 2 FT.
TONIGHT...NE WINDS 5 TO 10 KT
BECOMING E AFTER MIDNIGHT. WAVES
1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...SE WINDS 5 TO 10 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
MON
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ541-232000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
811 AM EDT THU JUL 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
TODAY...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 KT LATE. WAVES 1 FT.
TONIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
E WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...SE WINDS 5 TO 10 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-232000-
PATUXENT RIVER TO BROOMES ISLAND MD-
811 AM EDT THU JUL 23 2026
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN
SE WINDS AROUND 5 KT. WAVES 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-232000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
811 AM EDT THU JUL 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
TODAY
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT EARLY THIS MORNING.
WAVES 1 TO 2 FT.
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...E WINDS 5 KT
BECOMING S. WAVES 1 FT OR LESS.
MON
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ543-232000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
811 AM EDT THU JUL 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
TODAY
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT EARLY THIS MORNING.
WAVES 1 FT. A SLIGHT CHANCE OF SHOWERS EARLY THIS MORNING.
TONIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...SE WINDS 5 KT
BECOMING S. WAVES 1 FT OR LESS.
MON
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
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