169
FZUS51 KLWX 131200
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
759 AM EDT TUE OCT 13 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.
ANZ500-132000-
759 AM EDT TUE OCT 13 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE BUILDS TO THE SOUTH OF THE WATERS TODAY. SOUTHERLY
CHANNELING COULD RESULT IN BRIEF PERIODS OF SMALL CRAFT ADVISORY
CONDITIONS. A DRY COLD FRONT WILL PUSH SOUTHWARD WEDNESDAY INTO
WEDNESDAY NIGHT, THEN STALL NEAR OR JUST SOUTH OF THE REGION ON
THURSDAY. SMALL CRAFT ADVISORIES MAY BE NEEDED WEDNESDAY NIGHT INTO
THURSDAY. A STRONG COLD FRONT MOVES ACROSS THE AREA FRIDAY, WITH
GALE CONDITIONS POSSIBLE FRIDAY NIGHT INTO SATURDAY.
ANZ535-132000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
759 AM EDT TUE OCT 13 2026
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI...SW WINDS 5 TO 10 KT
BECOMING W 15 TO 20 KT IN THE
AFTERNOON, THEN BECOMING NW. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SAT...NW WINDS 15 TO 20 KT
DIMINISHING TO AROUND 5 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
ANZ536-132000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
759 AM EDT TUE OCT 13 2026
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT...SW WINDS 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
THU NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...SW WINDS 10 TO 15 KT
BECOMING W 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW. WAVES 1 FT... BUILDING TO 3 FT. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
SAT...NW WINDS 15 TO 20 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
ANZ537-132000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
759 AM EDT TUE OCT 13 2026
TODAY...SW WINDS 5 KT
BECOMING S LATE. WAVES 1 FT OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...SW WINDS AROUND 5 KT
BECOMING N AFTER MIDNIGHT. WAVES
1 FT.
THU
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...SW WINDS 10 TO 15 KT
BECOMING W 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT...BUILDING
TO 4 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SAT...NW WINDS 20 TO 25 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 3 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
ANZ530-132000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
759 AM EDT TUE OCT 13 2026
TODAY
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...W WINDS 5 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
SE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI...S WINDS 10 TO 15 KT
BECOMING W 25 TO 30 KT IN THE AFTERNOON
AND EVENING, THEN BECOMING NW AFTER MIDNIGHT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS.
SAT...NW WINDS 20 TO 25 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
ANZ531-132000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
759 AM EDT TUE OCT 13 2026
TODAY...SW WINDS 5 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT OR
LESS...BUILDING TO 2 FT LATE.
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 TO 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...W WINDS 5 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
THU
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
FRI...S WINDS 10 TO 15 KT
BECOMING W 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT...BUILDING
TO 4 FT. A CHANCE OF SHOWERS.
SAT...NW WINDS 25 TO 30 KT
DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES 3 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
ANZ538-132000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
759 AM EDT TUE OCT 13 2026
TODAY...SW WINDS 5 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT OR
LESS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI...SW WINDS 10 KT
BECOMING W 15 TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
SAT...NW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
ANZ539-132000-
CHESTER RIVER TO QUEENSTOWN MD-
759 AM EDT TUE OCT 13 2026
TODAY...SW WINDS 5 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT OR
LESS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT...W WINDS 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI...S WINDS 10 TO 15 KT
BECOMING W 15 TO 20 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT...BUILDING
TO 4 FT. A CHANCE OF SHOWERS.
SAT...NW WINDS 20 TO 25 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 3 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
ANZ532-132000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
759 AM EDT TUE OCT 13 2026
TODAY...SW WINDS 5 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT OR
LESS...BUILDING TO 2 FT LATE.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT...SW WINDS 5 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT.
THU
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
FRI...SW WINDS 15 KT
BECOMING W 20 TO 25 KT IN THE AFTERNOON,
THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT...BUILDING TO 4 FT. A
CHANCE OF SHOWERS.
SAT...NW WINDS 25 TO 30 KT
DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES 4 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
ANZ540-132000-
EASTERN BAY-
759 AM EDT TUE OCT 13 2026
TODAY...W WINDS 5 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT OR
LESS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT...SW WINDS 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
THU
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI...S WINDS 10 TO 15 KT
BECOMING W 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT. A CHANCE
OF SHOWERS.
SAT...NW WINDS 25 TO 30 KT
DIMINISHING TO 15 TO 20 KT. WAVES 2 TO
3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
ANZ533-132000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
759 AM EDT TUE OCT 13 2026
TODAY...SW WINDS 5 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT OR
LESS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT...SW WINDS 5 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
THU
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
FRI...SW WINDS 10 TO 15 KT
BECOMING W 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT...BUILDING
TO 5 FT. A CHANCE OF SHOWERS.
SAT...NW WINDS 25 TO 30 KT
DIMINISHING TO 15 TO 20 KT AFTER
MIDNIGHT. WAVES 4 FT...SUBSIDING TO 3 FT AFTER MIDNIGHT.
ANZ541-132000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
759 AM EDT TUE OCT 13 2026
TODAY...W WINDS 5 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT OR
LESS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT...SW WINDS 5 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT.
THU
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI...S WINDS 10 TO 15 KT
BECOMING W 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT...BUILDING
TO 4 FT. A CHANCE OF SHOWERS THROUGH THE DAY.
SAT...NW WINDS 25 TO 30 KT
BECOMING N 15 TO 20 KT AFTER MIDNIGHT.
WAVES 3 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
ANZ542-132000-
PATUXENT RIVER TO BROOMES ISLAND MD-
759 AM EDT TUE OCT 13 2026
TODAY
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT...SW WINDS AROUND 5 KT
BECOMING N AFTER MIDNIGHT. WAVES
1 FT.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
THU NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
FRI...SW WINDS 5 TO 10 KT
BECOMING W 15 TO 20 KT IN THE
AFTERNOON, THEN BECOMING NW. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SAT...NW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
ANZ534-132000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
759 AM EDT TUE OCT 13 2026
TODAY...W WINDS 5 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT OR
LESS...BUILDING TO 2 FT LATE.
TONIGHT
S WINDS 10 TO 15 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES
1 FT.
THU
NE WINDS 10 TO 15 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI...SW WINDS 10 TO 15 KT
INCREASING TO 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT...BUILDING
TO 6 FT. A CHANCE OF SHOWERS.
SAT...NW WINDS 25 TO 30 KT
BECOMING N 15 TO 20 KT AFTER MIDNIGHT.
WAVES 5 FT...SUBSIDING TO 3 FT AFTER MIDNIGHT.
ANZ543-132000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
759 AM EDT TUE OCT 13 2026
TODAY...W WINDS 5 KT
BECOMING S THIS AFTERNOON. WAVES 1 FT OR
LESS.
TONIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT.
THU
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...S WINDS 10 TO 15 KT
BECOMING SW 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 35 KT. WAVES 2 TO 3 FT...BUILDING
TO 4 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SAT...NW WINDS 25 TO 30 KT
BECOMING N 15 TO 20 KT AFTER MIDNIGHT.
WAVES 3 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
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