738
FZUS51 KLWX 170858
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
458 AM EDT SAT OCT 17 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.
ANZ500-172300-
458 AM EDT SAT OCT 17 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD IN FROM THE CENTRAL U.S. TODAY AND
TOMORROW, THEN LINGER EARLY NEXT WEEK AS LOW PRESSURE DEVELOPS AND
MEANDERS OFF THE CAROLINA COAST. ADDITIONAL SMALL CRAFT ADVISORIES
MAY BE NEEDED SUNDAY INTO EARLY NEXT WEEK.
ANZ535-172300-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
458 AM EDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF THE OVERNIGHT
NW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SHOWERS LIKELY.
TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 30 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
TONIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 25 KT. WAVES 1 FT.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED
N WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-172300-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
458 AM EDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF THE OVERNIGHT
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT. SHOWERS LIKELY.
TODAY
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SHOWERS LIKELY.
TONIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 25 KT UNTIL EARLY
MORNING. WAVES 1 TO 2 FT.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
N WINDS 10 TO 15 KT. WAVES 1 FT.
WED
N WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ537-172300-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
458 AM EDT SAT OCT 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
3 FT. SHOWERS.
TODAY
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
SHOWERS.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
SUN NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON NIGHT
N WINDS 20 TO 25 KT. WAVES 3 FT.
TUE
N WINDS 20 TO 25 KT. WAVES 3 FT.
WED
N WINDS 20 TO 25 KT. WAVES 4 FT.
ANZ530-172300-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
458 AM EDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT. A CHANCE OF SHOWERS.
TODAY
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
WED
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ531-172300-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
458 AM EDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
3 FT. SHOWERS LIKELY.
TODAY
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
SHOWERS LIKELY.
TONIGHT...N WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
25 KT IN THE LATE EVENING AND OVERNIGHT. WAVES 3 FT.
SUN
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
TUE
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
WED
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
ANZ538-172300-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
458 AM EDT SAT OCT 17 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
N WINDS 15 KT WITH GUSTS TO 30 KT. WAVES 2 FT. SHOWERS
LIKELY.
TONIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 25 KT UNTIL EARLY
MORNING. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
N WINDS 10 TO 15 KT. WAVES 1 FT.
WED
NE WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ539-172300-
CHESTER RIVER TO QUEENSTOWN MD-
458 AM EDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
3 FT. SHOWERS.
TODAY
N WINDS 15 TO 20 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
SHOWERS LIKELY.
TONIGHT
N WINDS 15 TO 20 KT. GUSTS UP TO 30 KT EARLY IN THE
EVENING. WAVES 2 TO 3 FT.
SUN
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE
N WINDS 10 TO 15 KT. WAVES 2 FT.
WED
NE WINDS 10 TO 15 KT. WAVES 2 FT.
ANZ532-172300-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
458 AM EDT SAT OCT 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
3 FT. SHOWERS.
TODAY
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
SHOWERS LIKELY.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SUN
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
SUN NIGHT...NE WINDS 10 KT
INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. WAVES 2 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON NIGHT
N WINDS 20 TO 25 KT. WAVES 3 FT.
TUE
N WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
WED
NE WINDS 20 TO 25 KT. WAVES 3 FT.
ANZ540-172300-
EASTERN BAY-
458 AM EDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
2 FT. SHOWERS.
TODAY
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
SHOWERS LIKELY.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SUN
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
WED
NE WINDS 15 TO 20 KT. WAVES 2 FT.
ANZ533-172300-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
458 AM EDT SAT OCT 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 25 KT WITH GUSTS TO 30 KT. WAVES
4 FT. SHOWERS.
TODAY
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 5 FT.
SHOWERS LIKELY.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SUN NIGHT
NE WINDS 15 TO 20 KT. GUSTS UP TO 25 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT.
MON
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
MON NIGHT
N WINDS 20 TO 25 KT. WAVES 4 FT.
TUE
N WINDS 20 TO 25 KT. WAVES 3 FT.
WED
NE WINDS 20 TO 25 KT. WAVES 4 FT.
ANZ541-172300-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
458 AM EDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 25 KT WITH GUSTS TO 30 KT. WAVES
3 FT. SHOWERS.
TODAY
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
SHOWERS.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
SUN
NE WINDS 15 TO 20 KT. GUSTS UP TO 25 KT IN THE MORNING. WAVES
2 FT.
SUN NIGHT...NE WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
N WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
TUE...N WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT IN THE
EVENING, THEN INCREASING TO 20 TO 25 KT AFTER MIDNIGHT. WAVES 2 TO
3 FT.
WED
NE WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
ANZ542-172300-
PATUXENT RIVER TO BROOMES ISLAND MD-
458 AM EDT SAT OCT 17 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.
TODAY
N WINDS 15 TO 20 KT WITH GUSTS TO 35 KT. WAVES 1 FT.
SHOWERS.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 FT.
SUN
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TUE
N WINDS 10 TO 15 KT. WAVES 1 FT.
WED
N WINDS 15 TO 20 KT. WAVES 1 FT.
ANZ534-172300-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
458 AM EDT SAT OCT 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 25 KT WITH GUSTS TO 30 KT. WAVES
4 FT. SHOWERS.
TODAY
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 5 FT.
SHOWERS.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 5 FT.
SUN...NE WINDS 20 TO 25 KT
BECOMING N 15 KT IN THE AFTERNOON.
WAVES 3 FT.
SUN NIGHT
NE WINDS 20 TO 25 KT. WAVES 3 FT.
MON
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
MON NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
TUE
N WINDS 20 TO 25 KT. WAVES 4 FT.
WED
NE WINDS 25 TO 30 KT. WAVES 4 FT.
ANZ543-172300-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
458 AM EDT SAT OCT 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT EARLY THIS
MORNING...
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 25 KT WITH GUSTS TO 30 KT. WAVES
3 FT. SHOWERS.
TODAY
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
SHOWERS.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SUN NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
MON NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
TUE
N WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
WED
NE WINDS 20 TO 25 KT. WAVES 3 FT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page