411
FZUS51 KLWX 122337
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
737 PM EDT SAT SEP 12 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.
ANZ500-130800-
737 PM EDT SAT SEP 12 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A STATIONARY FRONT NEAR THE VIRGINIA-NORTH CAROLINA BORDER WILL
RETURN NORTHWARD AS A WARM FRONT THIS EVENING BEFORE ANOTHER COLD
FRONT CROSSES THE REGION BY MONDAY MORNING. HIGH PRESSURE RETURNS
FOR EARLY NEXT WEEK. SMALL CRAFT ADVISORIES WILL LIKELY BE NEEDED
MONDAY IN THE WAKE OF THE COLD FRONT.
ANZ535-130800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
737 PM EDT SAT SEP 12 2026
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. NUMEROUS
SHOWERS WITH A CHANCE OF TSTMS THIS EVENING, THEN NUMEROUS SHOWERS
WITH A SLIGHT CHANCE OF TSTMS AFTER MIDNIGHT.
SUN
W WINDS AROUND 5 KT. WAVES 1 FT. NUMEROUS SHOWERS.
SUN NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT.
THU
S WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-130800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
737 PM EDT SAT SEP 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING
TONIGHT...SE WINDS 5 TO 10 KT
BECOMING SW LATE. WAVES 1 FT.
NUMEROUS SHOWERS WITH A CHANCE OF TSTMS THIS EVENING, THEN NUMEROUS
SHOWERS WITH A SLIGHT CHANCE OF TSTMS AFTER MIDNIGHT.
SUN
W WINDS AROUND 5 KT. WAVES 1 FT. SCATTERED SHOWERS.
SUN NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT.
THU
S WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-130800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
737 PM EDT SAT SEP 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING
TONIGHT...SE WINDS 10 KT
BECOMING SW LATE. GUSTS UP TO 20 KT.
WAVES 1 TO 2 FT. NUMEROUS SHOWERS WITH A CHANCE OF TSTMS.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS.
SUN NIGHT...SW WINDS 5 KT
BECOMING W LATE. WAVES 1 FT OR LESS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-130800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
737 PM EDT SAT SEP 12 2026
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A SLIGHT CHANCE OF TSTMS
WITH ISOLATED SHOWERS THIS EVENING, THEN SHOWERS WITH A CHANCE OF
TSTMS AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS. PATCHY FOG. VSBY
1 TO 3 NM.
SUN NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES FLAT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-130800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
737 PM EDT SAT SEP 12 2026
TONIGHT
SE WINDS 10 KT. WAVES 1 TO 2 FT. SCATTERED SHOWERS WITH A
CHANCE OF TSTMS THIS EVENING, THEN SHOWERS WITH A CHANCE OF TSTMS
AFTER MIDNIGHT.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS.
SUN NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N 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
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-130800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
737 PM EDT SAT SEP 12 2026
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS WITH A
CHANCE OF TSTMS THIS EVENING, THEN SHOWERS WITH A CHANCE OF TSTMS
AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT.
SUN
W WINDS 5 KT. WAVES FLAT. SHOWERS.
SUN NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES FLAT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-130800-
CHESTER RIVER TO QUEENSTOWN MD-
737 PM EDT SAT SEP 12 2026
TONIGHT
SE WINDS 10 KT. WAVES 1 FT. A CHANCE OF TSTMS. SCATTERED
SHOWERS THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NE WINDS 10 KT. WAVES 1 TO 2 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES FLAT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-130800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
737 PM EDT SAT SEP 12 2026
TONIGHT
SE WINDS 10 KT. WAVES 1 TO 2 FT. SCATTERED SHOWERS WITH A
CHANCE OF TSTMS THIS EVENING, THEN SHOWERS WITH A CHANCE OF TSTMS
AFTER MIDNIGHT.
SUN
SW WINDS 5 TO 10 KT. WAVES 1 FT. NUMEROUS SHOWERS.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-130800-
EASTERN BAY-
737 PM EDT SAT SEP 12 2026
TONIGHT
SE WINDS 10 KT. WAVES 1 FT. SCATTERED SHOWERS WITH A
CHANCE OF TSTMS THIS EVENING, THEN SHOWERS WITH A CHANCE OF TSTMS
AFTER MIDNIGHT.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT. NUMEROUS SHOWERS.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-130800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
737 PM EDT SAT SEP 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING
TONIGHT...SE WINDS 10 KT
BECOMING S LATE. GUSTS UP TO 20 KT.
WAVES 1 TO 2 FT. SCATTERED SHOWERS WITH A CHANCE OF TSTMS THIS
EVENING, THEN SHOWERS WITH A CHANCE OF TSTMS AFTER MIDNIGHT.
SUN
SW WINDS 5 TO 10 KT. WAVES 1 FT. NUMEROUS SHOWERS.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-130800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
737 PM EDT SAT SEP 12 2026
TONIGHT...SE WINDS 10 KT
BECOMING S LATE. WAVES 1 FT. SCATTERED
SHOWERS WITH A CHANCE OF TSTMS THIS EVENING, THEN SHOWERS WITH A
CHANCE OF TSTMS AFTER MIDNIGHT.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 15 TO 20 KT. WAVES 2 FT.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-130800-
PATUXENT RIVER TO BROOMES ISLAND MD-
737 PM EDT SAT SEP 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING
TONIGHT...SE WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
BECOMING SW
LATE. WAVES 1 FT. SCATTERED SHOWERS WITH A CHANCE OF TSTMS THIS
EVENING, THEN SHOWERS WITH A CHANCE OF TSTMS AFTER MIDNIGHT.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
NE WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
WED
SE WINDS AROUND 5 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-130800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
737 PM EDT SAT SEP 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING
TONIGHT...SE WINDS 10 TO 15 KT
BECOMING SW LATE. GUSTS UP TO
20 KT. WAVES 2 FT. SCATTERED SHOWERS WITH A CHANCE OF TSTMS THIS
EVENING, THEN SHOWERS WITH A CHANCE OF TSTMS AFTER MIDNIGHT.
SUN
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON NIGHT
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 3 FT.
TUE
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-130800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
737 PM EDT SAT SEP 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING
TONIGHT...SE WINDS 10 KT
BECOMING SW LATE. WAVES 1 FT. SCATTERED
SHOWERS WITH A CHANCE OF TSTMS THIS EVENING, THEN SHOWERS WITH A
CHANCE OF TSTMS AFTER MIDNIGHT.
SUN...SW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT LATE. WAVES 1 FT.
NUMEROUS SHOWERS.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 FT.
TUE NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page