960
FZUS51 KLWX 211458
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1058 AM EDT SAT MAR 21 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.
ANZ500-212000-
1058 AM EDT SAT MAR 21 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD IN TODAY. ANOTHER COLD FRONT WILL PUSH
THROUGH SUNDAY NIGHT BEFORE HIGH PRESSURE APPROACHES FROM THE WEST
EARLY NEXT WEEK. SMALL CRAFT ADVISORIES MAY BE NEEDED SATURDAY
MORNING, AND AGAIN SUNDAY AFTERNOON THROUGH MONDAY NIGHT. DEPENDING
ON HOW THE THUNDERSTORMS EVOLVE SUNDAY EVENING INTO SUNDAY NIGHT,
SPECIAL MARINE WARNINGS ARE ALSO POSSIBLE.
ANZ535-212000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
RAIN LIKELY.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT. A
CHANCE OF RAIN.
MON NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
SE WINDS AROUND 5 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-212000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. A CHANCE OF RAIN.
MON
N WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON AND
EVENING, THEN BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-212000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. A CHANCE OF RAIN.
MON
N WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT IN THE AFTERNOON
AND EVENING, THEN BECOMING S AFTER MIDNIGHT. WAVES 1 TO 2 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ530-212000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. WAVES 1 FT. A CHANCE OF RAIN.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF RAIN.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SW. WAVES 1 FT OR LESS.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ531-212000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT...E WINDS AROUND 5 KT
BECOMING S AFTER MIDNIGHT. WAVES
1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...S WINDS 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
RAIN LIKELY.
MON
N WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT. WAVES 1 FT.
WED...S WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 FT.
ANZ538-212000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. RAIN LIKELY.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF RAIN.
MON NIGHT
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
S WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ539-212000-
CHESTER RIVER TO QUEENSTOWN MD-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT...E WINDS 5 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT OR
LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...S WINDS 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
RAIN LIKELY.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF RAIN.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SW. WAVES 1 FT.
WED...S WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 FT.
ANZ532-212000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 10 KT. WAVES 1 FT.
TONIGHT...E WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES
1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES
2 FT. RAIN LIKELY.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A CHANCE
OF RAIN.
MON NIGHT
N WINDS 15 TO 20 KT. WAVES 2 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING E 5 KT IN THE AFTERNOON, THEN
BECOMING S 10 TO 15 KT. WAVES 1 TO 2 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ540-212000-
EASTERN BAY-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT...E WINDS 5 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT OR
LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. WAVES 1 FT. RAIN LIKELY.
MON
N WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE...NW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
WED
S WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ533-212000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 10 KT. WAVES 1 FT.
TONIGHT...NE WINDS 5 KT
BECOMING S IN THE LATE EVENING AND
OVERNIGHT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 FT. A CHANCE OF RAIN.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A CHANCE
OF RAIN.
MON NIGHT
N WINDS 15 TO 20 KT. WAVES 3 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING NE 5 KT IN THE AFTERNOON, THEN
BECOMING S 10 TO 15 KT. WAVES 1 TO 2 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ541-212000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 10 KT. WAVES 1 FT.
TONIGHT...NE WINDS AROUND 5 KT
BECOMING S IN THE LATE EVENING AND
OVERNIGHT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 FT. A CHANCE OF RAIN.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A CHANCE
OF RAIN.
MON NIGHT
N WINDS 15 TO 20 KT. WAVES 2 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING NW 5 KT IN THE AFTERNOON, THEN
BECOMING S 10 TO 15 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ542-212000-
PATUXENT RIVER TO BROOMES ISLAND MD-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF RAIN.
MON NIGHT
N WINDS 10 TO 15 KT. WAVES 1 FT.
TUE...NE WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-212000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 10 KT. WAVES 1 TO 2 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 10 KT. WAVES 1 TO 2 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING SW AFTER MIDNIGHT. WAVES
2 FT. A CHANCE OF RAIN.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A CHANCE
OF RAIN.
MON NIGHT
N WINDS 15 TO 20 KT. WAVES 3 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING S. WAVES 1 TO 2 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ543-212000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1058 AM EDT SAT MAR 21 2026
REST OF TODAY
N WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN.
MON
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF RAIN.
MON NIGHT
N WINDS 15 TO 20 KT. WAVES 2 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT IN THE
AFTERNOON, THEN BECOMING S 10 TO 15 KT. WAVES 1 TO 2 FT.
WED...SW WINDS 10 TO 15 KT
BECOMING S. WAVES 1 FT.
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