977
FZUS51 KLWX 270858
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
458 AM EDT SUN SEP 27 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.
ANZ500-272300-
458 AM EDT SUN SEP 27 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A NOR'EASTER WILL MEANDER OFF THE MID ATLANTIC COAST THROUGH TONIGHT
BEFORE FINALLY DEPARTING TO THE NORTHEAST MONDAY. HIGH PRESSURE
WILL BUILD INTO THE AREA FOR THE MIDDLE OF THE WEEK. SMALL CRAFT
ADVISORIES MAY BE NEEDED FOR PORTIONS OF THE WATERS MONDAY.
ANZ535-272300-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT. A SLIGHT CHANCE OF SHOWERS.
TODAY...NW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT
INCREASING TO
30 KT IN THE AFTERNOON. WAVES 1 FT. SHOWERS LIKELY.
TONIGHT...NW WINDS 10 TO 15 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT AFTER MIDNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED
S WINDS AROUND 5 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-272300-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT. A SLIGHT CHANCE OF SHOWERS.
TODAY...NW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT
INCREASING TO
30 KT LATE. WAVES 2 FT. A CHANCE OF SHOWERS.
TONIGHT...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-272300-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
3 FT. A CHANCE OF SHOWERS.
TODAY
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
TONIGHT...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
MON
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ530-272300-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT. SHOWERS.
TODAY
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SHOWERS.
TONIGHT...N WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT LATE. WAVES 2 FT. A CHANCE OF SHOWERS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
NW WINDS 5 KT. WAVES FLAT.
TUE NIGHT
NW WINDS AROUND 5 KT. WAVES FLAT.
WED
S WINDS AROUND 5 KT. WAVES FLAT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ531-272300-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
3 FT. SHOWERS LIKELY.
TODAY
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SHOWERS.
TONIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
LIGHT WINDS. WAVES FLAT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ538-272300-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
1 FT. SHOWERS LIKELY.
TODAY
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SHOWERS.
TONIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT UNTIL EARLY
MORNING. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
NW WINDS 5 KT. WAVES FLAT.
TUE NIGHT
LIGHT WINDS. WAVES FLAT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ539-272300-
CHESTER RIVER TO QUEENSTOWN MD-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
3 FT. SHOWERS LIKELY.
TODAY
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SHOWERS.
TONIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
NW WINDS AROUND 5 KT. WAVES FLAT.
TUE NIGHT
LIGHT WINDS. WAVES FLAT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ532-272300-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
3 FT. SHOWERS LIKELY.
TODAY
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SHOWERS.
TONIGHT...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT LATE. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
W WINDS AROUND 5 KT. WAVES FLAT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ540-272300-
EASTERN BAY-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT. SHOWERS LIKELY.
TODAY
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
SHOWERS.
TONIGHT...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
NW WINDS AROUND 5 KT. WAVES FLAT.
TUE NIGHT
LIGHT WINDS. WAVES FLAT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ533-272300-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
4 FT. SHOWERS LIKELY.
TODAY
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SHOWERS LIKELY.
TONIGHT...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT LATE. WAVES 3 FT. A CHANCE OF SHOWERS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ541-272300-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
3 FT. SHOWERS LIKELY.
TODAY
NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SHOWERS LIKELY.
TONIGHT...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT LATE. WAVES 3 FT. A CHANCE OF SHOWERS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ542-272300-
PATUXENT RIVER TO BROOMES ISLAND MD-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
1 FT. A CHANCE OF SHOWERS.
TODAY
NW WINDS 10 TO 15 KT WITH GUSTS TO 30 KT. WAVES 1 FT.
SHOWERS LIKELY.
TONIGHT...NW WINDS 10 TO 15 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT IN THE LATE EVENING AND OVERNIGHT. WAVES 1 FT. A CHANCE OF
SHOWERS.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
LIGHT WINDS. WAVES FLAT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-272300-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
4 FT. SHOWERS LIKELY.
TODAY
NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
SHOWERS LIKELY.
TONIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
WED...S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS
BUILDING TO 2 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ543-272300-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
458 AM EDT SUN SEP 27 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
3 FT. SHOWERS LIKELY.
TODAY
NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SHOWERS LIKELY.
TONIGHT...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT LATE. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
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