143
FZUS51 KLWX 211735
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
134 PM EDT WED MAY 21 2025
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.
ANZ500-220800-
134 PM EDT WED MAY 21 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A STRONG AREA OF LOW PRESSURE WILL MOVE ACROSS THE REGION THROUGH
THURSDAY, THEN MOVE OFFSHORE AT THE END OF THE WEEK. HIGH PRESSURE
APPROACHES FROM THE WEST OVER THE WEEKEND. SMALL CRAFT ADVISORIES
MAY BE NEEDED AT TIMES THURSDAY THROUGH SATURDAY.
ANZ535-220800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
PATCHY DRIZZLE. PATCHY FOG. VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS. PATCHY FOG.
VSBY 1 NM OR LESS.
THU
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS. VSBY 1 NM OR LESS.
THU NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
FRI
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-220800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
AREAS OF DRIZZLE. PATCHY FOG. VSBY 1 TO 3 NM.
TONIGHT...E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING N
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS. PATCHY FOG.
VSBY 1 NM OR LESS.
THU
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
VSBY 1 NM OR LESS.
THU NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
FRI
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-220800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
NUMEROUS SHOWERS WITH AREAS OF DRIZZLE. PATCHY FOG. VSBY 1 NM OR
LESS.
TONIGHT...E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING NW
5 TO 10 KT LATE. WAVES 3 FT. NUMEROUS SHOWERS. PATCHY FOG. VSBY 1 TO
3 NM.
THU
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS
LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY.
FRI
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SAT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SUN
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-220800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT. NUMEROUS SHOWERS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT
E WINDS 15 TO 20 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 TO 2 FT. SHOWERS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS. PATCHY FOG. VSBY
1 NM OR LESS.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
FRI
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
ANZ531-220800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES
2 TO 3 FT. AREAS OF DRIZZLE AND SCATTERED SHOWERS. PATCHY FOG. VSBY
1 NM OR LESS.
TONIGHT
E WINDS 15 TO 20 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 2 TO 3 FT. SHOWERS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS. PATCHY FOG. VSBY
1 NM OR LESS.
THU NIGHT
NW WINDS 10 KT. WAVES 1 FT. SHOWERS LIKELY.
FRI
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SAT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
ANZ538-220800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
SE WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
AREAS OF DRIZZLE. PATCHY FOG. VSBY 1 TO 3 NM.
TONIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS. PATCHY FOG. VSBY
1 NM OR LESS.
THU NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
FRI
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
ANZ539-220800-
CHESTER RIVER TO QUEENSTOWN MD-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT. NUMEROUS SHOWERS WITH AREAS OF DRIZZLE. PATCHY FOG. VSBY 1 NM
OR LESS.
TONIGHT...E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING NE
10 KT LATE. WAVES 1 TO 2 FT. SHOWERS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
N WINDS 10 KT. WAVES 1 FT. SHOWERS. PATCHY FOG. VSBY 1 NM OR
LESS.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
FRI
W WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI NIGHT
W WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
ANZ532-220800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES
3 FT. AREAS OF DRIZZLE AND SCATTERED SHOWERS. PATCHY FOG. VSBY 1 NM
OR LESS.
TONIGHT...E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING NE
10 KT LATE. WAVES 2 TO 3 FT. SHOWERS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
NW WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS. VSBY 1 NM OR LESS.
THU NIGHT
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SAT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-220800-
EASTERN BAY-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT. NUMEROUS SHOWERS WITH AREAS OF DRIZZLE. PATCHY FOG. VSBY 1 NM
OR LESS.
TONIGHT...E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING NE
10 KT LATE. WAVES 1 TO 2 FT. SHOWERS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
NW WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS. VSBY 1 TO 3 NM.
THU NIGHT
W WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS.
FRI
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
W WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-220800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES
3 FT. SCATTERED SHOWERS WITH AREAS OF DRIZZLE. PATCHY FOG. VSBY 1 NM
OR LESS.
TONIGHT...E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING NE
5 TO 10 KT LATE. WAVES 2 TO 3 FT. SHOWERS. PATCHY FOG. VSBY 1 NM OR
LESS.
THU
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
AND TSTMS. VSBY 1 NM OR LESS.
THU NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
FRI
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SUN
NW 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.
ANZ541-220800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT. NUMEROUS SHOWERS WITH AREAS OF DRIZZLE. PATCHY FOG. VSBY 1 NM
OR LESS.
TONIGHT...E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING NE
5 TO 10 KT LATE. WAVES 2 FT. SHOWERS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
NW WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS. VSBY 1 NM OR LESS.
THU NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY.
FRI
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SUN
NW 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.
ANZ542-220800-
PATUXENT RIVER TO BROOMES ISLAND MD-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
NUMEROUS SHOWERS WITH AREAS OF DRIZZLE. PATCHY FOG. VSBY 1 NM OR
LESS.
TONIGHT...E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING N
5 KT LATE. WAVES 1 FT. SHOWERS. PATCHY FOG. VSBY 1 TO 3 NM.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
THU NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-220800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES
3 FT. NUMEROUS SHOWERS WITH AREAS OF DRIZZLE. PATCHY FOG. VSBY 1 NM
OR LESS.
TONIGHT...E WINDS 20 TO 25 KT WITH GUSTS TO 30 KT
DIMINISHING TO
10 TO 15 KT WITH GUSTS TO 20 KT AFTER MIDNIGHT, THEN BECOMING N
LATE. WAVES 3 FT. NUMEROUS SHOWERS. PATCHY FOG. VSBY 1 TO 3 NM.
THU
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. SHOWERS LIKELY.
FRI
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT
NW WINDS 10 TO 15 KT. WAVES 2 FT.
SUN...NW WINDS 5 TO 10 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-220800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
134 PM EDT WED MAY 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
THIS AFTERNOON
E WINDS 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
NUMEROUS SHOWERS WITH AREAS OF DRIZZLE. PATCHY FOG. VSBY 1 NM OR
LESS.
TONIGHT...E WINDS 20 TO 25 KT WITH GUSTS TO 30 KT
DIMINISHING TO
10 TO 15 KT AFTER MIDNIGHT, THEN BECOMING N LATE. WAVES 2 TO 3 FT.
NUMEROUS SHOWERS. PATCHY FOG. VSBY 1 TO 3 NM.
THU
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS
LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY.
FRI
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SUN...NW WINDS 5 TO 10 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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