841
FZUS51 KLWX 190723
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
323 AM EDT SUN APR 19 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.
ANZ500-192200-
323 AM EDT SUN APR 19 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT WILL MOVE OFFSHORE THIS MORNING. A SECONDARY COLD FRONT
WILL FOLLOW IN ITS WAKE TONIGHT INTO MONDAY MORNING. HIGH PRESSURE
WILL BUILD IN BEHIND THESE FRONTS LATE MONDAY THROUGH TUESDAY.
ANOTHER FRONT LOOKS TO DROP IN FROM THE NORTH WEDNESDAY. SMALL CRAFT
ADVISORIES MAY BE NEEDED MONDAY MORNING THROUGH MONDAY EVENING IN
NORTHWEST FLOW, AND LATE TUESDAY INTO WEDNESDAY IN SOUTH TO
SOUTHWEST FLOW.
ANZ535-192200-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
N WINDS 15 KT. WAVES 1 FT. SCATTERED
SHOWERS.
TODAY
NW WINDS 10 TO 15 KT WITH GUSTS TO 30 KT. WAVES 1 TO 2 FT.
SHOWERS.
TONIGHT
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
W WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED...SW WINDS 5 TO 10 KT
BECOMING NW. WAVES 1 FT OR LESS. A
CHANCE OF SHOWERS.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ536-192200-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
W WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SCATTERED SHOWERS.
TODAY...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT IN THE AFTERNOON. WAVES 3 FT...SUBSIDING TO 1 FT IN THE
AFTERNOON. SHOWERS.
TONIGHT
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING
TO 5 KT AFTER MIDNIGHT. WAVES 1 FT.
TUE
W WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED...SW WINDS 5 TO 10 KT
BECOMING NW. WAVES 1 FT OR LESS. A
CHANCE OF SHOWERS.
THU
NW WINDS AROUND 5 KT. WAVES 1 FT.
ANZ537-192200-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. ISOLATED SHOWERS.
TODAY...NW WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT LATE.
GUSTS UP TO 30 KT...DIMINISHING TO 20 KT LATE. WAVES 3 FT. SHOWERS.
TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES
1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED...SW WINDS 10 TO 15 KT...BECOMING NW 5 KT. WAVES 1 TO 2 FT
SUBSIDING TO FLAT AFTER MIDNIGHT. A CHANCE OF SHOWERS THROUGH THE
NIGHT.
THU
E WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ530-192200-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
NE WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS. PATCHY FOG. VSBY 1 TO 3 NM.
TODAY...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT LATE. WAVES 2 FT. SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
W WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED...W WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT OR
LESS. A CHANCE OF SHOWERS.
THU
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ531-192200-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
NE WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS.
TODAY...NW WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT...DIMINISHING TO 20 KT LATE. WAVES
3 FT. SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE...N WINDS 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED...W WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 TO
2 FT...SUBSIDING TO FLAT AFTER MIDNIGHT. A CHANCE OF SHOWERS.
THU
SW WINDS AROUND 5 KT. WAVES FLAT.
ANZ538-192200-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SCATTERED SHOWERS.
TODAY...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT IN THE AFTERNOON. WAVES 1 TO 2 FT. SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 KT AFTER MIDNIGHT. WAVES 1 FT OR LESS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING N
5 KT AFTER MIDNIGHT. WAVES 1 FT.
TUE
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED...W WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT OR
LESS. A CHANCE OF SHOWERS.
THU
SW WINDS AROUND 5 KT. WAVES FLAT.
ANZ539-192200-
CHESTER RIVER TO QUEENSTOWN MD-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
N WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS.
TODAY...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT LATE. WAVES 3 FT. SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
WED...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS.
THU
SW WINDS 5 KT. WAVES FLAT.
ANZ532-192200-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
N WINDS 15 KT. WAVES 1 FT. ISOLATED
SHOWERS.
TODAY...NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT
DIMINISHING TO
10 TO 15 KT WITH GUSTS TO 20 KT LATE. WAVES 3 FT. SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES
1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED...SW WINDS 10 TO 15 KT...BECOMING NW 5 KT. WAVES 1 TO 2 FT
SUBSIDING TO FLAT AFTER MIDNIGHT. A CHANCE OF SHOWERS.
THU
E WINDS 5 KT. WAVES FLAT.
ANZ540-192200-
EASTERN BAY-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS.
TODAY...NW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT LATE. WAVES 2 FT. SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED...SW WINDS 10 TO 15 KT...BECOMING NW 5 KT. WAVES 1 TO 2 FT
SUBSIDING TO FLAT AFTER MIDNIGHT. A CHANCE OF SHOWERS.
THU
SW WINDS AROUND 5 KT. WAVES FLAT.
ANZ533-192200-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. ISOLATED SHOWERS.
TODAY...NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT
DIMINISHING TO
15 KT WITH GUSTS TO 20 KT LATE. WAVES 3 FT. SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES
1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED...SW WINDS 10 TO 15 KT
BECOMING NW 5 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
THU
E WINDS 5 KT. WAVES LESS THAN 1 FT.
ANZ541-192200-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
SW WINDS 15 KT. WAVES 1 FT. ISOLATED
SHOWERS.
TODAY...NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT
DIMINISHING TO
10 TO 15 KT WITH GUSTS TO 20 KT LATE. WAVES 3 FT. SHOWERS LIKELY.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SW IN THE AFTERNOON. WAVES 1 FT
OR LESS.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED...SW WINDS 10 TO 15 KT...BECOMING NW 5 KT. WAVES 1 TO 2 FT
SUBSIDING TO FLAT AFTER MIDNIGHT. A CHANCE OF SHOWERS.
THU
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ542-192200-
PATUXENT RIVER TO BROOMES ISLAND MD-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS.
TODAY...NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT
DIMINISHING TO
10 KT WITH GUSTS TO 20 KT LATE. WAVES 1 TO 2 FT. SHOWERS.
TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 10 TO 15 KT. WAVES 1 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SE IN THE AFTERNOON. WAVES
1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
WED...W WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS.
THU
E WINDS AROUND 5 KT. WAVES 1 FT.
ANZ534-192200-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 20 KT. WAVES 3 FT. ISOLATED
SHOWERS.
TODAY...W WINDS 20 TO 25 KT
BECOMING NW IN THE LATE MORNING AND
AFTERNOON. GUSTS UP TO 30 KT. WAVES 4 FT. SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT LATE. WAVES
1 TO 2 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
MON NIGHT
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
WED...SW WINDS 15 TO 20 KT
DIMINISHING TO 5 KT IN THE EVENING,
THEN BECOMING NW AFTER MIDNIGHT. WAVES 2 TO 3 FT...SUBSIDING TO
1 FT. A CHANCE OF SHOWERS.
THU...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
ANZ543-192200-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
323 AM EDT SUN APR 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 20 KT. WAVES 2 FT. ISOLATED
SHOWERS.
TODAY...W WINDS 20 TO 25 KT
BECOMING NW IN THE LATE MORNING AND
AFTERNOON. GUSTS UP TO 30 KT. WAVES 2 TO 3 FT. SHOWERS.
TONIGHT...NW WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT LATE. WAVES
1 FT.
MON
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING SW 5 KT IN THE AFTERNOON.
WAVES 1 FT.
TUE NIGHT
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
WED...SW WINDS 15 TO 20 KT
BECOMING W 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
THU...NW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
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