577
FZUS51 KLWX 140258
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1058 PM 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.
ANZ500-140800-
1058 PM 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 THROUGH THIS EVENING
BEFORE SHIFTING OFFSHORE WEDNESDAY MORNING. SOUTHERLY CHANNELING
COULD RESULT IN BRIEF PERIODS OF SMALL CRAFT ADVISORY CONDITIONS. A
DRY COLD FRONT WILL PUSH SOUTHWARD WEDNESDAY AFTERNOON 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 STRONGER COLD FRONT MOVES ACROSS THE AREA FRIDAY, WITH
GALE CONDITIONS POSSIBLE FRIDAY NIGHT INTO SATURDAY.
ANZ535-140800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 5 KT. WAVES LESS THAN 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 10 KT WITH GUSTS TO 20 KT
BECOMING W 15 TO 20 KT
WITH GUSTS TO 40 KT IN THE AFTERNOON. WAVES 1 TO 2 FT. SHOWERS
LIKELY.
FRI NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 35 KT. WAVES 1 TO
2 FT.
SAT...NW WINDS 15 TO 20 KT
DIMINISHING TO AROUND 5 KT AFTER
MIDNIGHT. WAVES 1 FT.
SUN
SW WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-140800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1058 PM EDT TUE OCT 13 2026
REST OF 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 LATE. 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 WITH GUSTS TO 20 KT
INCREASING TO
20 TO 25 KT WITH GUSTS TO 30 KT IN THE AFTERNOON. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
FRI NIGHT
NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT.
SAT...NW WINDS 15 TO 20 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
SUN
SW WINDS AROUND 5 KT. WAVES 1 FT.
ANZ537-140800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 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 2 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
INCREASING TO
20 TO 25 KT WITH GUSTS TO 30 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.
SHOWERS LIKELY.
FRI NIGHT
NW WINDS 25 TO 30 KT. WAVES 4 FT. A CHANCE OF SHOWERS.
SAT...NW WINDS 20 TO 25 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 3 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
SUN...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
ANZ530-140800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...NW WINDS 5 TO 10 KT
BECOMING N LATE. WAVES 1 FT. A
CHANCE OF SHOWERS.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
FRI
SW WINDS 20 TO 25 KT. GUSTS UP TO 35 KT IN THE AFTERNOON.
WAVES 2 FT. SHOWERS LIKELY.
FRI NIGHT
NW WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
SAT...NW WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT. WAVES 1 TO
2 FT.
SUN
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ531-140800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 10 KT. 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
BECOMING E 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT. SHOWERS LIKELY.
THU NIGHT...SE WINDS 5 TO 10 KT
BECOMING S 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
FRI
SW WINDS 20 TO 25 KT. GUSTS UP TO 35 KT IN THE AFTERNOON.
WAVES 2 TO 3 FT. SHOWERS LIKELY.
FRI NIGHT
NW WINDS 25 TO 30 KT. WAVES 4 FT.
SAT...NW WINDS 25 TO 30 KT
DIMINISHING TO 5 TO 10 KT. WAVES
3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
SUN
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ538-140800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
W WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT...NW WINDS 5 KT
BECOMING N LATE. WAVES 1 FT OR LESS. A
CHANCE OF SHOWERS.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
THU NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W 15 TO
20 KT WITH GUSTS TO 30 KT IN THE AFTERNOON. WAVES 1 TO 2 FT. SHOWERS
LIKELY.
FRI NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SAT...NW WINDS 15 TO 20 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
SUN
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ539-140800-
CHESTER RIVER TO QUEENSTOWN MD-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 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. A
CHANCE OF SHOWERS.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
THU NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF SHOWERS.
FRI...S WINDS 15 KT WITH GUSTS TO 20 KT
BECOMING SW 20 TO 25 KT
WITH GUSTS TO 30 KT IN THE AFTERNOON. WAVES 2 TO 3 FT. SHOWERS
LIKELY.
FRI NIGHT
NW WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
SAT...NW WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT. WAVES
3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
SUN
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ532-140800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 10 KT. WAVES 1 TO 2 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT...W 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 1 TO 2 FT.
SHOWERS LIKELY.
THU NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
FRI
SW WINDS 20 TO 25 KT. GUSTS UP TO 35 KT IN THE AFTERNOON.
WAVES 3 FT. SHOWERS LIKELY.
FRI NIGHT
NW WINDS 25 TO 30 KT. WAVES 4 FT.
SAT...NW WINDS 25 TO 30 KT
DIMINISHING TO 15 TO 20 KT. WAVES
3 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
SUN
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ540-140800-
EASTERN BAY-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 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 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY.
THU NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF SHOWERS.
FRI...S WINDS 15 KT WITH GUSTS TO 20 KT
BECOMING SW 20 TO 25 KT
WITH GUSTS TO 35 KT IN THE AFTERNOON. WAVES 2 TO 3 FT. SHOWERS
LIKELY.
FRI NIGHT
NW WINDS 25 TO 30 KT. WAVES 3 FT.
SAT...NW WINDS 20 TO 25 KT
BECOMING N 5 TO 10 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
SUN
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ533-140800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 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 WITH GUSTS TO
20 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
THU
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS
LIKELY.
THU NIGHT
SE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
FRI...SW WINDS 15 TO 20 KT
INCREASING TO 25 TO 30 KT IN THE
AFTERNOON. WAVES 2 FT...BUILDING TO 4 FT IN THE AFTERNOON. SHOWERS
LIKELY.
FRI NIGHT
NW WINDS 25 TO 30 KT. WAVES 5 FT.
SAT...NW WINDS 25 TO 30 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 4 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
SUN...NW WINDS 5 TO 10 KT
BECOMING SW. WAVES 1 FT.
ANZ541-140800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 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 WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY.
THU NIGHT
SE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI
SW WINDS 20 TO 25 KT. GUSTS UP TO 35 KT IN THE AFTERNOON.
WAVES 2 FT...BUILDING TO 4 FT IN THE AFTERNOON. SHOWERS LIKELY.
FRI NIGHT
NW WINDS 25 TO 30 KT. WAVES 4 FT.
SAT...NW WINDS 25 TO 30 KT...BECOMING N 15 TO 20 KT. WAVES 3 FT
SUBSIDING TO 2 FT AFTER MIDNIGHT.
SUN...NW WINDS 5 TO 10 KT
BECOMING SW. WAVES 1 FT.
ANZ542-140800-
PATUXENT RIVER TO BROOMES ISLAND MD-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT...W WINDS AROUND 5 KT
BECOMING N LATE. 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 15 TO 20 KT. GUSTS UP TO 20 KT
INCREASING TO
30 KT IN THE AFTERNOON. WAVES 1 FT. SHOWERS LIKELY.
FRI NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SAT...NW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
SUN
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ534-140800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 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 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
SW WINDS 20 TO 25 KT. GUSTS UP TO 30 KT IN THE AFTERNOON.
WAVES 3 FT. SHOWERS LIKELY.
FRI NIGHT
NW WINDS 25 TO 35 KT. WAVES 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.
SUN...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 TO 2 FT.
ANZ543-140800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1058 PM EDT TUE OCT 13 2026
REST OF TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 TO 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 1 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 10 TO 15 KT. WAVES 1 FT.
FRI
SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
SHOWERS LIKELY.
FRI NIGHT
NW WINDS 25 TO 30 KT. WAVES 4 FT. A CHANCE OF SHOWERS.
SAT...NW WINDS 25 TO 30 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 3 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
SUN...N WINDS 5 TO 10 KT
BECOMING SW. WAVES 1 FT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page