463
FZUS51 KLWX 240857
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 AM EDT THU SEP 24 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.
ANZ500-242300-
457 AM EDT THU SEP 24 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A STRONG COASTAL LOW WILL THEN DEVELOP OFFSHORE AND INTENSIFY AS IT
LIFTS NORTHWARD INTO THIS WEEKEND. SMALL CRAFT ADVISORIES WILL
LIKELY BE NEEDED FOR MUCH OF THE FRIDAY THROUGH SATURDAY TIME
PERIOD, AND A FEW LOW-END GALE GUSTS CAN'T BE RULED OUT.
ANZ535-242300-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 AM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TODAY
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TONIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SAT NIGHT
NW WINDS 5 TO 10 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 FT.
SUN...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-242300-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 AM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TONIGHT...N WINDS 10 TO 15 KT. GUSTS UP TO 25 KT
DIMINISHING TO
20 KT AFTER MIDNIGHT. WAVES 1 FT.
FRI
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SAT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ537-242300-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 AM EDT THU SEP 24 2026
..GALE WARNING IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
4 FT.
TODAY
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
SUN...NW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ530-242300-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 AM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TODAY
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI NIGHT
N WINDS 20 TO 25 KT. WAVES 2 FT.
SAT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SAT NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN...NW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS THROUGH THE DAY.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ531-242300-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 AM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
3 FT.
TODAY
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT. WAVES 3 FT.
SAT
N WINDS 20 TO 25 KT. WAVES 3 FT.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SUN
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ538-242300-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 AM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SAT NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ539-242300-
CHESTER RIVER TO QUEENSTOWN MD-
457 AM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TODAY
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
FRI NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
SAT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
SUN...NW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ532-242300-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 AM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 25 KT WITH GUSTS TO 30 KT. WAVES
4 FT.
TODAY
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
FRI
N WINDS 20 TO 25 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT NIGHT
NW WINDS 20 TO 25 KT. WAVES 3 FT.
SUN...NW WINDS 15 TO 20 KT
DIMINISHING TO 10 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ540-242300-
EASTERN BAY-
457 AM EDT THU SEP 24 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TODAY
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI NIGHT
N WINDS 20 TO 25 KT. WAVES 2 FT.
SAT
N WINDS 20 TO 25 KT. WAVES 2 FT.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN...NW WINDS 15 TO 20 KT
DIMINISHING TO 10 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ533-242300-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 AM EDT THU SEP 24 2026
..GALE WARNING IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 25 KT WITH GUSTS TO 30 KT. WAVES
5 FT...EXCEPT AROUND 3 FT NEAR THE MOUTH OF THE CHOPTANK.
TODAY
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
TONIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
SAT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
SAT NIGHT
NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SUN
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ541-242300-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 AM EDT THU SEP 24 2026
..GALE WARNING IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 25 KT WITH GUSTS TO 30 KT. WAVES
3 FT.
TODAY
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SUN
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ542-242300-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 AM EDT THU SEP 24 2026
..GALE WARNING IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
1 FT.
TODAY
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 FT.
SAT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SAT NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SUN...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-242300-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 AM EDT THU SEP 24 2026
..GALE WARNING IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 25 KT WITH GUSTS TO 30 KT. WAVES
5 FT.
TODAY
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI NIGHT
N WINDS 25 TO 30 KT. WAVES 5 FT.
SAT
N WINDS 25 TO 30 KT. WAVES 5 FT.
SAT NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
SUN...NW WINDS 15 TO 20 KT. WAVES 3 FT
SUBSIDING TO 2 FT AFTER
MIDNIGHT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
ANZ543-242300-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 AM EDT THU SEP 24 2026
..GALE WARNING IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NE WINDS 25 KT WITH GUSTS TO 30 KT. WAVES
3 FT.
TODAY
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SUN...NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT
SUBSIDING TO 1 FT
AFTER MIDNIGHT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
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