493
FZUS51 KLWX 150628
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
228 AM EDT WED APR 15 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.
ANZ500-152000-
228 AM EDT WED APR 15 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
IT WILL REMAIN VERY WARM AND DRY THROUGH FRIDAY AS AN AREA OF HIGH
PRESSURE BUILDS ACROSS THE MID-ATLANTIC. A COLD FRONT LATE THIS
WEEKEND COULD BRING THE NEXT CHANCE FOR WIDESPREAD SHOWERS. SMALL
CRAFT ADVISORIES MAY BE NEEDED AT TIMES THURSDAY THROUGH THURSDAY
NIGHT AND AGAIN LATE SATURDAY THROUGH MONDAY.
ANZ535-152000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
228 AM EDT WED APR 15 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT.
THU NIGHT
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ536-152000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
228 AM EDT WED APR 15 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT.
THU NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS THROUGH THE NIGHT.
SUN...W WINDS 10 TO 15 KT
BECOMING NW. WAVES 1 TO 2 FT. A CHANCE
OF SHOWERS.
ANZ537-152000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
228 AM EDT WED APR 15 2026
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT.
WED NIGHT
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES FLAT.
SAT...SE WINDS 10 TO 15 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT
OR LESS...BUILDING TO 2 FT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE
NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
ANZ530-152000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
228 AM EDT WED APR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH THIS EVENING...
OVERNIGHT
SW WINDS 5 KT. WAVES FLAT. ISOLATED SHOWERS.
WED
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT OR LESS.
THU
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT OR LESS.
THU NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT OR LESS.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW. WAVES 1 TO 2 FT. A CHANCE
OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
ANZ531-152000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
228 AM EDT WED APR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH THIS EVENING...
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
WED NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT.
THU
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT OR LESS.
THU NIGHT
SW WINDS 10 KT. GUSTS UP TO 20 KT IN THE EVENING. WAVES
1 FT.
FRI
W WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
SE WINDS 10 TO 15 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
SUN...SW WINDS 10 TO 15 KT...BECOMING NW 15 TO 20 KT. WAVES 1 FT
BUILDING TO 2 TO 3 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
ANZ538-152000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
228 AM EDT WED APR 15 2026
OVERNIGHT
SW WINDS 5 KT. WAVES FLAT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT OR LESS.
THU NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
W WINDS 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES FLAT.
SAT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
SUN...W WINDS 10 TO 15 KT
BECOMING NW. WAVES 1 FT. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
ANZ539-152000-
CHESTER RIVER TO QUEENSTOWN MD-
228 AM EDT WED APR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH THIS EVENING...
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED...SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
BECOMING S 15 KT
WITH GUSTS TO 20 KT LATE. WAVES 1 FT.
WED NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT OR LESS.
THU NIGHT
SW WINDS 10 KT. GUSTS UP TO 20 KT IN THE EVENING. WAVES
1 FT.
FRI
W WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SUN...SW WINDS 10 TO 15 KT...BECOMING NW 15 TO 20 KT. WAVES 1 FT
BUILDING TO 2 TO 3 FT. A CHANCE OF SHOWERS.
ANZ532-152000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
228 AM EDT WED APR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH THIS EVENING...
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
WED NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT.
THU
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT.
THU NIGHT
SW WINDS 10 KT. GUSTS UP TO 20 KT IN THE EVENING. WAVES
1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT...SE WINDS 10 TO 15 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT
OR LESS...BUILDING TO 2 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW. WAVES 2 TO 3 FT. A CHANCE
OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
ANZ540-152000-
EASTERN BAY-
228 AM EDT WED APR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH THIS EVENING...
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED...SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
BECOMING S 15 KT
WITH GUSTS TO 20 KT LATE. WAVES 1 FT.
WED NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT.
THU NIGHT
SW WINDS 10 KT. GUSTS UP TO 20 KT IN THE EVENING. WAVES
1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES FLAT.
SAT...NE WINDS AROUND 5 KT
BECOMING S 10 TO 15 KT. WAVES 1 FT OR
LESS. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW 15 TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
ANZ533-152000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
228 AM EDT WED APR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH THIS EVENING...
OVERNIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
WED NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT.
THU
SW WINDS 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT.
THU NIGHT
SW WINDS 10 KT. GUSTS UP TO 20 KT IN THE EVENING. WAVES
1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT...SE WINDS 10 TO 15 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT
OR LESS...BUILDING TO 2 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW 20 TO 25 KT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY
THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
ANZ541-152000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
228 AM EDT WED APR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH THIS EVENING...
OVERNIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
THU
SW WINDS 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT.
THU NIGHT
SW WINDS 10 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES FLAT.
SAT...NE WINDS AROUND 5 KT
BECOMING S 10 TO 15 KT. WAVES 1 FT OR
LESS. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW. WAVES 2 TO 3 FT. A CHANCE
OF SHOWERS.
ANZ542-152000-
PATUXENT RIVER TO BROOMES ISLAND MD-
228 AM EDT WED APR 15 2026
OVERNIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 10 KT. WAVES 1 FT.
THU
SW WINDS 10 KT. WAVES 1 FT.
THU NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN...W WINDS 10 TO 15 KT
BECOMING NW. WAVES 1 FT. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
ANZ534-152000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
228 AM EDT WED APR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH THIS EVENING...
OVERNIGHT
SW WINDS 10 KT. WAVES 2 FT.
WED
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
WED NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT...SW WINDS 5 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
SAT...SE WINDS 10 TO 15 KT
BECOMING S 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 FT OR LESS...BUILDING TO 2 FT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW 20 TO 25 KT. WAVES 2 TO
3 FT...BUILDING TO 4 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ543-152000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
228 AM EDT WED APR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH THIS EVENING...
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT.
WED
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 KT
BECOMING NE AFTER MIDNIGHT. WAVES FLAT.
SAT...SE WINDS 10 TO 15 KT
BECOMING S 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 FT OR LESS...BUILDING TO 2 FT AFTER MIDNIGHT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW 20 TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
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