211
FZUS51 KLWX 220259
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1058 PM 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.
ANZ500-220800-
1058 PM EDT SAT MAR 21 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT WILL PUSH THROUGH SUNDAY NIGHT BEFORE HIGH PRESSURE
APPROACHES FROM THE WEST EARLY NEXT WEEK. SMALL CRAFT ADVISORIES MAY
BE NEEDED THROUGH MONDAY NIGHT. DEPENDING ON HOW THUNDERSTORMS
EVOLVE SUNDAY EVENING INTO SUNDAY NIGHT, SPECIAL MARINE WARNINGS ARE
ALSO POSSIBLE.
ANZ535-220800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1058 PM EDT SAT MAR 21 2026
..SMALL CRAFT ADVISORY IN EFFECT SUNDAY AFTERNOON
REST OF TONIGHT
S 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
BECOMING NW LATE. GUSTS UP TO
20 KT. WAVES 1 FT. SHOWERS LIKELY.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
NE WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN THROUGH THE
NIGHT.
ANZ536-220800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1058 PM EDT SAT MAR 21 2026
..SMALL CRAFT ADVISORY IN EFFECT SUNDAY AFTERNOON
REST OF TONIGHT...SE WINDS 15 KT
BECOMING S 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW LATE. WAVES 1 FT. A
CHANCE OF SHOWERS.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 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
NE WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN THROUGH
THE NIGHT.
ANZ537-220800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1058 PM EDT SAT MAR 21 2026
REST OF TONIGHT
SE WINDS 10 TO 15 KT. WAVES 1 FT. PATCHY FOG WITH
VSBY 1 TO 3 NM.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING W LATE. WAVES 1 FT. A
CHANCE OF SHOWERS.
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
NE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN
THROUGH THE NIGHT.
ANZ530-220800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1058 PM EDT SAT MAR 21 2026
REST OF TONIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 TO 3 NM.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES
1 FT. SHOWERS WITH A CHANCE OF TSTMS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 25 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
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU...S WINDS 10 TO 15 KT
BECOMING W 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-220800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1058 PM EDT SAT MAR 21 2026
REST OF TONIGHT...E WINDS 10 KT
BECOMING S. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. PATCHY FOG. VSBY 1 NM OR
LESS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 TO 2 FT. SHOWERS LIKELY.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 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 IN THE AFTERNOON. WAVES 1 FT
OR LESS.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 FT.
THU...S WINDS 15 TO 20 KT
BECOMING W AFTER MIDNIGHT. WAVES 2 FT.
A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ538-220800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1058 PM EDT SAT MAR 21 2026
REST OF TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 TO 3 NM.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES
1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
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 WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN THROUGH
THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-220800-
CHESTER RIVER TO QUEENSTOWN MD-
1058 PM EDT SAT MAR 21 2026
REST OF TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 TO 3 NM.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. SHOWERS 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 1 TO
2 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU...S WINDS 15 TO 20 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ532-220800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1058 PM EDT SAT MAR 21 2026
REST OF TONIGHT
S WINDS 10 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. PATCHY FOG. VSBY 1 NM
OR LESS.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW LATE. WAVES 2 FT.
SHOWERS 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
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU...S WINDS 15 TO 20 KT
BECOMING SW AFTER MIDNIGHT. WAVES 2 TO
3 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ540-220800-
EASTERN BAY-
1058 PM EDT SAT MAR 21 2026
REST OF TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 NM OR
LESS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. SHOWERS 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 1 FT.
TUE
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 FT.
THU...S WINDS 15 TO 20 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ533-220800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1058 PM EDT SAT MAR 21 2026
REST OF TONIGHT
S WINDS 10 KT. WAVES 1 FT. PATCHY FOG WITH VSBY
1 NM OR LESS.
SUN
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. PATCHY FOG. VSBY 1 NM
OR LESS.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW LATE. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON
N WINDS 15 TO 20 KT. WAVES 3 FT. A CHANCE OF RAIN.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING NE 5 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU...S WINDS 15 TO 20 KT
BECOMING SW 20 TO 25 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ541-220800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1058 PM EDT SAT MAR 21 2026
REST OF TONIGHT
S WINDS 10 KT. WAVES 1 FT OR LESS. PATCHY FOG
WITH VSBY 1 TO 3 NM.
SUN
S WINDS 10 TO 15 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 NM OR
LESS.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW LATE. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
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
DIMINISHING TO 5 KT IN THE AFTERNOON.
WAVES 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 FT.
THU...S WINDS 15 TO 20 KT
BECOMING SW 20 TO 25 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT...BUILDING TO 3 FT AFTER MIDNIGHT. A CHANCE OF RAIN
THROUGH THE NIGHT.
ANZ542-220800-
PATUXENT RIVER TO BROOMES ISLAND MD-
1058 PM EDT SAT MAR 21 2026
REST OF TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG WITH
VSBY 1 TO 3 NM.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 TO 3 NM.
SUN NIGHT...SW WINDS 10 KT
BECOMING NW LATE. WAVES 1 FT. A CHANCE
OF SHOWERS.
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. WAVES 1 FT.
TUE NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN THROUGH
THE NIGHT.
ANZ534-220800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1058 PM EDT SAT MAR 21 2026
REST OF TONIGHT
SE WINDS 10 KT. WAVES 1 FT. PATCHY DENSE FOG WITH
VSBY 1 NM OR LESS.
SUN
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. PATCHY DENSE FOG. VSBY
1 NM OR LESS.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING W LATE. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON
N WINDS 15 TO 20 KT. WAVES 3 FT. A CHANCE OF RAIN.
MON NIGHT
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 3 FT.
TUE
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU...S WINDS 15 TO 20 KT
BECOMING SW 20 TO 25 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ543-220800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1058 PM EDT SAT MAR 21 2026
REST OF TONIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT LATE THIS
EVENING. WAVES 1 FT. PATCHY DENSE FOG WITH VSBY 1 NM OR LESS.
SUN
S WINDS 10 TO 15 KT. WAVES 1 FT. PATCHY DENSE FOG. VSBY 1 NM
OR LESS.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING W LATE. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 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 NW 5 KT IN THE AFTERNOON.
WAVES 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 FT.
THU...S WINDS 15 TO 20 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
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