760
FZUS51 KLWX 231458
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1058 AM EDT THU APR 23 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.
ANZ500-232000-
1058 AM EDT THU APR 23 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT WILL STALL SOUTHWEST OF THE POTOMAC RIVER TODAY. THE
FRONT WILL LIFT BACK NORTHWARD AS A WARM FRONT FRIDAY INTO
SATURDAY, THEN WILL BE FOLLOWED BY A COLD FRONT SATURDAY NIGHT.
SMALL CRAFT ADVISORIES MAY BE NEEDED FOR PORTIONS OF THE WATERS IN
EAST TO SOUTHEAST FLOW FRIDAY NIGHT INTO SATURDAY.
ANZ535-232000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1058 AM EDT THU APR 23 2026
REST OF TODAY
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-232000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1058 AM EDT THU APR 23 2026
REST OF TODAY
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-232000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1058 AM EDT THU APR 23 2026
REST OF TODAY...NW WINDS 10 KT
BECOMING NE LATE. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...N WINDS AROUND 5 KT
BECOMING SE LATE. WAVES 1 FT. A CHANCE
OF SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
SUN...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS IN THE MORNING.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
ANZ530-232000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1058 AM EDT THU APR 23 2026
REST OF TODAY
S WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
SAT
E WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS LIKELY.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
IN THE MORNING.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
ANZ531-232000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1058 AM EDT THU APR 23 2026
REST OF TODAY
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT...S WINDS 5 TO 10 KT
BECOMING NE LATE. WAVES 1 FT.
FRI
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS LIKELY.
SUN...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS IN THE MORNING.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ538-232000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1058 AM EDT THU APR 23 2026
REST OF TODAY
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
FRI NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
IN THE MORNING.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ539-232000-
CHESTER RIVER TO QUEENSTOWN MD-
1058 AM EDT THU APR 23 2026
REST OF TODAY...NW WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT
OR LESS.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
NE WINDS AROUND 5 KT. WAVES FLAT.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS.
SAT NIGHT
NE WINDS 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
IN THE MORNING.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ532-232000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1058 AM EDT THU APR 23 2026
REST OF TODAY...NE WINDS 10 KT
BECOMING E LATE. WAVES 1 FT.
TONIGHT...S WINDS 5 TO 10 KT
BECOMING E LATE. WAVES 1 FT.
FRI
NE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
E WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS.
SAT NIGHT
NE WINDS 10 TO 15 KT. WAVES 2 FT. SHOWERS LIKELY.
SUN...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS IN THE MORNING.
MON...E WINDS 10 TO 15 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
ANZ540-232000-
EASTERN BAY-
1058 AM EDT THU APR 23 2026
REST OF TODAY...N WINDS 5 TO 10 KT
BECOMING SE LATE. WAVES 1 FT
OR LESS.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
NE WINDS AROUND 5 KT. WAVES FLAT.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT NIGHT
NE WINDS 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SUN...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 FT OR
LESS. A CHANCE OF SHOWERS IN THE MORNING.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ533-232000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1058 AM EDT THU APR 23 2026
REST OF TODAY
NE WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS LIKELY.
SUN...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS IN THE MORNING.
MON
SE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ541-232000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1058 AM EDT THU APR 23 2026
REST OF TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT...S WINDS 5 TO 10 KT
BECOMING E LATE. WAVES 1 FT OR LESS.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS LIKELY.
SUN...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS IN THE MORNING.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ542-232000-
PATUXENT RIVER TO BROOMES ISLAND MD-
1058 AM EDT THU APR 23 2026
REST OF TODAY...NW WINDS 10 KT
BECOMING NE THIS AFTERNOON. WAVES
1 FT.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
ANZ534-232000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1058 AM EDT THU APR 23 2026
REST OF TODAY
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
E WINDS 10 KT. WAVES 2 FT. SHOWERS LIKELY.
SAT NIGHT
NE WINDS 10 TO 15 KT. WAVES 2 FT. SHOWERS LIKELY.
SUN...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT AFTER MIDNIGHT.
WAVES 2 FT. A CHANCE OF SHOWERS IN THE MORNING.
MON...E WINDS 10 TO 15 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
ANZ543-232000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1058 AM EDT THU APR 23 2026
REST OF TODAY
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
E WINDS 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY.
SUN
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
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