257
FZUS51 KLWX 191827
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
227 PM EDT SAT SEP 19 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.
ANZ500-200800-
227 PM EDT SAT SEP 19 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE BRIEFLY WILL BUILD OVER THE NORTHEASTERN U.S. ON
SATURDAY BEFORE A FRONTAL SYSTEM LOOMS NEARBY ON SUNDAY AND INTO
EARLY NEXT WEEK. WIND GUSTS REMAIN ELEVATED AT TIMES SATURDAY NIGHT
THROUGH WEDNESDAY, WHICH MAY PROMPT SMALL CRAFT ADVISORIES.
ANZ535-200800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
227 PM EDT SAT SEP 19 2026
THIS AFTERNOON
E WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SUN NIGHT...SW WINDS 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
SCATTERED SHOWERS.
MON
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ536-200800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
227 PM EDT SAT SEP 19 2026
THIS AFTERNOON
E WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE...NE WINDS 10 KT
INCREASING TO 15 TO 20 KT. WAVES 1 TO 2 FT.
A CHANCE OF SHOWERS.
WED
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
ANZ537-200800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
227 PM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT SUNDAY
THIS AFTERNOON
E WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN
S WINDS 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
TUE...NE WINDS 20 TO 25 KT. WAVES 2 TO 3 FT
BUILDING TO 4 FT. A
CHANCE OF SHOWERS.
WED
NE WINDS 25 TO 30 KT. WAVES 4 FT. A CHANCE OF SHOWERS.
ANZ530-200800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
227 PM EDT SAT SEP 19 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 10 KT. WAVES 1 FT.
SUN...S WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO 20 KT.
WAVES 1 FT. NUMEROUS SHOWERS.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. NUMEROUS SHOWERS.
MON
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
ANZ531-200800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
227 PM EDT SAT SEP 19 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SCATTERED SHOWERS.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT.
WAVES 1 TO 2 FT. NUMEROUS SHOWERS.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
TUE...NE WINDS 15 KT
INCREASING TO 20 TO 25 KT. WAVES 2 TO 3 FT.
A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
ANZ538-200800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
227 PM EDT SAT SEP 19 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 10 TO 15 KT. WAVES 1 FT.
SUN
S WINDS 10 KT. WAVES 1 FT. NUMEROUS SHOWERS.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. NUMEROUS SHOWERS.
MON
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
ANZ539-200800-
CHESTER RIVER TO QUEENSTOWN MD-
227 PM EDT SAT SEP 19 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SCATTERED SHOWERS.
SUN NIGHT...SW WINDS 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. NUMEROUS SHOWERS.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
ANZ532-200800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
227 PM EDT SAT SEP 19 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SCATTERED SHOWERS.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. NUMEROUS SHOWERS.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
ANZ540-200800-
EASTERN BAY-
227 PM EDT SAT SEP 19 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SCATTERED SHOWERS.
SUN NIGHT...S WINDS 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
NUMEROUS SHOWERS.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
ANZ533-200800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
227 PM EDT SAT SEP 19 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. SCATTERED
SHOWERS.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 25 TO 30 KT. WAVES 4 FT. A CHANCE OF SHOWERS.
ANZ541-200800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
227 PM EDT SAT SEP 19 2026
THIS AFTERNOON
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
SE WINDS 10 TO 15 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
ANZ542-200800-
PATUXENT RIVER TO BROOMES ISLAND MD-
227 PM EDT SAT SEP 19 2026
THIS AFTERNOON
E WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 10 KT. WAVES 1 FT.
SUN
S WINDS 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
MON
N WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 15 TO 20 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ534-200800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
227 PM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT SUNDAY
THIS AFTERNOON
E WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 2 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT AFTER
MIDNIGHT. WAVES 2 FT. SCATTERED SHOWERS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 25 TO 30 KT. WAVES 5 FT. A CHANCE OF SHOWERS.
ANZ543-200800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
227 PM EDT SAT SEP 19 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT SUNDAY
THIS AFTERNOON
E WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 1 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 FT. SCATTERED SHOWERS.
MON
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
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