353
FZUS51 KLWX 181659
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1259 PM EDT WED MAR 18 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.
ANZ500-190800-
1259 PM EDT WED MAR 18 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BE IN PLACE FOR THE MIDDLE TO LATTER PORTIONS OF
THE WORK WEEK. THE NEXT FRONTAL SYSTEM PUSHES ACROSS THE WATERS BY
LATE IN THE WEEKEND. SMALL CRAFT ADVISORIES MAY BE NEEDED ON FRIDAY
NIGHT FOR SOUTHERLY CHANNELING, AND AGAIN BY SUNDAY EVENING INTO
SUNDAY NIGHT.
ANZ535-190800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
THU
S WINDS AROUND 5 KT. WAVES 1 FT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
FRI
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
SUN...SW WINDS 5 TO 10 KT
BECOMING NW. WAVES 1 FT. A CHANCE OF
SHOWERS THROUGH THE NIGHT.
ANZ536-190800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
SUN...SW WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT. WAVES 1 FT. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ537-190800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 KT. WAVES FLAT.
THU
SE WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SAT...SW WINDS 10 TO 15 KT
BECOMING W IN THE AFTERNOON, THEN
BECOMING S. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN THE MORNING.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
ANZ530-190800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
S WINDS 5 KT. WAVES FLAT.
TONIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
THU
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY IN THE
MORNING.
SUN...W WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ531-190800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY IN THE
MORNING.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS.
ANZ538-190800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
SE WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS 5 KT. WAVES FLAT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY IN
THE MORNING.
SUN...W WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS.
ANZ539-190800-
CHESTER RIVER TO QUEENSTOWN MD-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY IN THE
MORNING.
SUN...SW WINDS 5 TO 10 KT
BECOMING NW 15 TO 20 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS.
ANZ532-190800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE 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
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS LIKELY.
SAT
SW WINDS 10 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY IN THE
MORNING.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW 20 TO 25 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS.
ANZ540-190800-
EASTERN BAY-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
S WINDS 5 KT. WAVES FLAT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY IN THE
MORNING.
SUN...SW WINDS 5 TO 10 KT
BECOMING NW 15 TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
ANZ533-190800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE 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
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS LIKELY.
SAT...SW WINDS 10 TO 15 KT
BECOMING NW IN THE AFTERNOON, THEN
BECOMING S. WAVES 1 TO 2 FT. SHOWERS LIKELY IN THE MORNING.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW 20 TO 25 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ541-190800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY.
SAT...W WINDS 10 TO 15 KT
BECOMING S. WAVES 1 TO 2 FT. SHOWERS
LIKELY IN THE MORNING.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW 20 TO 25 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ542-190800-
PATUXENT RIVER TO BROOMES ISLAND MD-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
THU
SE WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
SUN...SW WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT. WAVES 1 FT. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ534-190800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SE WINDS 5 TO 10 KT. WAVES 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
S WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
SAT...SW WINDS 10 TO 15 KT
BECOMING S. WAVES 1 TO 2 FT. A CHANCE
OF SHOWERS IN THE MORNING.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW 20 TO 25 KT. WAVES 2 TO
3 FT...BUILDING TO 4 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
ANZ543-190800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1259 PM EDT WED MAR 18 2026
THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
THU
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
SAT...SW WINDS 10 TO 15 KT
BECOMING S. WAVES 1 TO 2 FT. A CHANCE
OF SHOWERS IN THE MORNING.
SUN...SW WINDS 10 TO 15 KT
BECOMING W 15 TO 20 KT IN THE EVENING,
THEN BECOMING NW 20 TO 25 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
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