574
FZUS51 KLWX 292357
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
757 PM EDT TUE SEP 29 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.
ANZ500-300800-
757 PM EDT TUE SEP 29 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD ACROSS THE MID-ATLANTIC THROUGH WEDNESDAY,
THEN MOVE OFFSHORE THROUGH THE END OF THE WEEK AS A COLD FRONT
APPROACHES FROM THE WEST. THIS FRONT WILL STALL NEAR THE AREA THIS
WEEKEND WHEN A WAVE OF LOW PRESSURE MAY PASS NEARBY OR TO THE SOUTH.
HIGH PRESSURE WILL LIKELY RETURN EARLY NEXT WEEK. SMALL CRAFT
ADVISORIES MAY BE NEEDED AT TIMES IN SOUTH TO SOUTHWEST FLOW
WEDNESDAY EVENING THROUGH FRIDAY AFTERNOON, THEN IN NORTHERLY FLOW
FRIDAY NIGHT INTO SATURDAY.
ANZ535-300800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
757 PM EDT TUE SEP 29 2026
TONIGHT
LIGHT WINDS. WAVES FLAT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS, THEN
SHOWERS LIKELY AFTER MIDNIGHT.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY .
ANZ536-300800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
757 PM EDT TUE SEP 29 2026
TONIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES
1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT. SHOWERS LIKELY AFTER MIDNIGHT.
SUN
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY .
ANZ537-300800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
757 PM EDT TUE SEP 29 2026
TONIGHT
SW WINDS 5 KT. WAVES FLAT.
WED...SW WINDS AROUND 5 KT
BECOMING SE LATE. WAVES 1 FT OR LESS.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT.
SAT...NE WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SHOWERS LIKELY AFTER MIDNIGHT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY .
ANZ530-300800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
757 PM EDT TUE SEP 29 2026
TONIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT.
SAT...N WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 FT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY THROUGH THE
DAY, THEN A CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ531-300800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
757 PM EDT TUE SEP 29 2026
TONIGHT
W WINDS AROUND 5 KT. WAVES FLAT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 10 KT
BECOMING N AFTER MIDNIGHT. GUSTS UP TO
20 KT. WAVES 1 TO 2 FT.
SAT...N WINDS 10 TO 15 KT
BECOMING NE 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY THROUGH THE
DAY, THEN A CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ538-300800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
757 PM EDT TUE SEP 29 2026
TONIGHT
LIGHT WINDS. WAVES FLAT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
S WINDS AROUND 5 KT. WAVES FLAT.
THU NIGHT
S WINDS 5 KT. WAVES FLAT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT...W WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES
1 FT. A CHANCE OF SHOWERS.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN...NE WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
SHOWERS LIKELY THROUGH THE DAY, THEN A CHANCE OF SHOWERS THROUGH THE
NIGHT.
ANZ539-300800-
CHESTER RIVER TO QUEENSTOWN MD-
757 PM EDT TUE SEP 29 2026
TONIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
WED
SW WINDS AROUND 5 KT. WAVES FLAT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT.
SAT...N WINDS 10 TO 15 KT
BECOMING NE 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY THROUGH THE
DAY, THEN A CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ532-300800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
757 PM EDT TUE SEP 29 2026
TONIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
WED...SW WINDS AROUND 5 KT
BECOMING S LATE. WAVES 1 FT OR LESS.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 10 KT
BECOMING N 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
SAT...N WINDS 15 TO 20 KT
BECOMING NE 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT. SHOWERS LIKELY AFTER
MIDNIGHT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY .
ANZ540-300800-
EASTERN BAY-
757 PM EDT TUE SEP 29 2026
TONIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT.
SAT...N WINDS 10 TO 15 KT
BECOMING NE 5 TO 10 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY .
ANZ533-300800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
757 PM EDT TUE SEP 29 2026
TONIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
WED...SW WINDS AROUND 5 KT
BECOMING SE LATE. WAVES 1 FT OR LESS.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 10 KT
BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
SAT...N WINDS 15 TO 20 KT
BECOMING NE 5 TO 10 KT. WAVES 2 TO
3 FT...SUBSIDING TO 1 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SHOWERS LIKELY AFTER MIDNIGHT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY .
ANZ541-300800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
757 PM EDT TUE SEP 29 2026
TONIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT.
SAT...N WINDS 10 TO 15 KT
BECOMING NE 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT. SHOWERS LIKELY AFTER
MIDNIGHT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY .
ANZ542-300800-
PATUXENT RIVER TO BROOMES ISLAND MD-
757 PM EDT TUE SEP 29 2026
TONIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT. SHOWERS LIKELY AFTER MIDNIGHT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY .
ANZ534-300800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
757 PM EDT TUE SEP 29 2026
TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED...SW WINDS AROUND 5 KT
BECOMING SE LATE. WAVES 1 FT OR LESS.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 2 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 10 TO 15 KT. WAVES 2 FT.
FRI
SW WINDS 10 TO 15 KT. WAVES 2 FT.
FRI NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES
2 FT.
SAT...N WINDS 10 TO 15 KT
BECOMING NE. WAVES 1 TO 2 FT. A CHANCE
OF SHOWERS.
SUN
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY .
ANZ543-300800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
757 PM EDT TUE SEP 29 2026
TONIGHT
SW WINDS 5 KT. WAVES FLAT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
FRI
SW WINDS 10 TO 15 KT. WAVES 1 FT.
FRI NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT.
SAT...N WINDS 10 TO 15 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF
SHOWERS.
SUN
NE WINDS 10 KT. WAVES 1 FT. SHOWERS LIKELY .
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