436
FZUS51 KLWX 221158
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
757 AM EDT WED APR 22 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.
ANZ500-222000-
757 AM EDT WED APR 22 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT WILL APPROACH FROM PENNSYLVANIA TODAY, THEN DROP INTO
THE MID-ATLANTIC AND STALL THURSDAY ROUGHLY SOUTHWEST OF THE POTOMAC
RIVER. 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.
ANZ535-222000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
TODAY...SW WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT. A SLIGHT
CHANCE OF TSTMS. SHOWERS LIKELY, MAINLY THIS MORNING.
TONIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT.
THU NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING. SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-222000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
TODAY...SW WINDS 10 TO 15 KT
BECOMING W LATE. GUSTS UP TO 20 KT.
WAVES 1 FT. A SLIGHT CHANCE OF TSTMS. SHOWERS LIKELY, MAINLY THIS
MORNING.
TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING. SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-222000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...SW WINDS 15 TO 20 KT
BECOMING W 10 KT THIS AFTERNOON.
GUSTS UP TO 25 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
N WINDS 5 KT. WAVES FLAT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
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 TO 15 KT
BECOMING NE 15 TO 20 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT. A CHANCE OF SHOWERS IN THE MORNING. SHOWERS.
SUN
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. SHOWERS LIKELY IN THE
MORNING, THEN A CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ530-222000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
TODAY...SW WINDS 5 TO 10 KT
BECOMING N LATE. WAVES 1 FT OR LESS.
SHOWERS LIKELY, MAINLY THIS MORNING.
TONIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
THU
NW WINDS AROUND 5 KT. WAVES FLAT.
THU NIGHT
N WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
FRI NIGHT
E WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
SAT
E WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE DAY.
ANZ531-222000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...SW WINDS 10 TO 15 KT
BECOMING SE 5 KT THIS AFTERNOON.
GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A SLIGHT
CHANCE OF TSTMS THIS MORNING, THEN A CHANCE OF SHOWERS THIS
AFTERNOON.
TONIGHT
NE WINDS 5 KT. WAVES FLAT.
THU
NW WINDS 5 KT. WAVES FLAT.
THU NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
E WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SHOWERS.
SUN
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
THROUGH THE DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-222000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM EDT THIS
EVENING...
TODAY...SW WINDS 5 TO 10 KT
BECOMING NE LATE. GUSTS UP TO 20 KT.
WAVES 1 FT OR LESS. A SLIGHT CHANCE OF TSTMS. SHOWERS LIKELY, MAINLY
THIS MORNING.
TONIGHT
N WINDS 5 KT. WAVES FLAT.
THU
NW WINDS AROUND 5 KT. WAVES FLAT.
THU NIGHT
NE WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
FRI NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
SAT
E WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-222000-
CHESTER RIVER TO QUEENSTOWN MD-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
BECOMING W LATE.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
TONIGHT
NE WINDS AROUND 5 KT. WAVES FLAT.
THU
NW WINDS 5 KT. WAVES FLAT.
THU NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
FRI
NE WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
E WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING. SHOWERS LIKELY.
SUN...NE WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF SHOWERS THROUGH THE DAY.
ANZ532-222000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...SW WINDS 10 TO 15 KT
BECOMING N 5 KT LATE. GUSTS UP TO
20 KT. WAVES 2 TO 3 FT...SUBSIDING TO 1 FT LATE. A SLIGHT CHANCE OF
TSTMS. SHOWERS LIKELY, MAINLY THIS MORNING.
TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
N WINDS 5 KT. WAVES FLAT.
THU NIGHT
SE WINDS 5 KT. WAVES FLAT.
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
BECOMING NE 15 TO 20 KT AFTER MIDNIGHT.
WAVES 2 FT. A CHANCE OF SHOWERS IN THE MORNING. SHOWERS LIKELY.
SUN...NE WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS THROUGH THE DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-222000-
EASTERN BAY-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...SW WINDS 10 TO 15 KT
BECOMING W 5 KT LATE. GUSTS UP TO
20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY, MAINLY THIS MORNING.
TONIGHT
N WINDS AROUND 5 KT. WAVES FLAT.
THU
NW WINDS 5 KT. WAVES FLAT.
THU NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
FRI
NE WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT...E WINDS 10 TO 15 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING. SHOWERS LIKELY.
SUN
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE DAY.
ANZ533-222000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...SW WINDS 10 TO 15 KT
BECOMING NW LATE. GUSTS UP TO 20 KT.
WAVES 2 TO 3 FT...SUBSIDING TO 1 FT LATE. SHOWERS LIKELY, MAINLY
THIS MORNING.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
N WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
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
BECOMING NE 15 TO 20 KT AFTER MIDNIGHT.
WAVES 2 FT. A CHANCE OF SHOWERS IN THE MORNING. SHOWERS.
SUN...NE WINDS 15 TO 20 KT
DIMINISHING TO 10 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT. SHOWERS LIKELY
IN THE MORNING, THEN A CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ541-222000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...SW WINDS 10 TO 15 KT
BECOMING W LATE. GUSTS UP TO 20 KT.
WAVES 1 TO 2 FT. SHOWERS LIKELY, MAINLY THIS MORNING.
TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
THU
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
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
BECOMING NE 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN THE MORNING. SHOWERS.
SUN...NE WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS THROUGH THE DAY.
ANZ542-222000-
PATUXENT RIVER TO BROOMES ISLAND MD-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...SW WINDS 10 TO 15 KT
BECOMING W LATE. GUSTS UP TO 20 KT.
WAVES 1 FT. A CHANCE OF SHOWERS.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
N WINDS 5 KT. WAVES LESS THAN 1 FT.
THU NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
FRI
NE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
SAT...E WINDS 10 TO 15 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING. SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY IN THE
MORNING, THEN A CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ534-222000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...SW WINDS 15 TO 20 KT
BECOMING W 10 KT LATE. GUSTS UP TO
25 KT. WAVES 3 FT...SUBSIDING TO 2 FT THIS AFTERNOON. A SLIGHT
CHANCE OF SHOWERS THIS MORNING, THEN A CHANCE OF SHOWERS THIS
AFTERNOON.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU...N WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
SAT...E WINDS 15 TO 20 KT
BECOMING NE AFTER MIDNIGHT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS IN THE MORNING. SHOWERS.
SUN
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. SHOWERS LIKELY IN THE
MORNING, THEN A CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ543-222000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
758 AM EDT WED APR 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
TODAY...SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING W
10 KT LATE. WAVES 2 TO 3 FT...SUBSIDING TO 1 FT LATE. A SLIGHT
CHANCE OF SHOWERS THIS MORNING, THEN A CHANCE OF SHOWERS THIS
AFTERNOON.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT...E WINDS 15 TO 20 KT
BECOMING NE AFTER MIDNIGHT. WAVES 2 FT.
A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS.
SUN
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY IN THE
MORNING, THEN A CHANCE OF SHOWERS THROUGH THE NIGHT.
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