097
FZUS51 KLWX 140001
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
800 PM EDT WED MAY 13 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.
ANZ500-140800-
800 PM EDT WED MAY 13 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT WILL CROSS THE WATERS TONIGHT. THE ASSOCIATED LOW WILL
LINGER OVER NEW ENGLAND THURSDAY BEFORE HIGH PRESSURE BUILDS IN FROM
THE WEST FRIDAY. THE HIGH WILL THEN SLIDE OFF THE COAST AND REMAIN
THERE THROUGH THE WEEKEND. SMALL CRAFT ADVISORIES MAY BE NEEDED AT
TIMES THURSDAY THROUGH FRIDAY.
ANZ535-140800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
800 PM EDT WED MAY 13 2026
TONIGHT...S WINDS 5 KT
BECOMING NW LATE. WAVES 1 FT. SHOWERS WITH
A CHANCE OF TSTMS EARLY THIS EVENING, THEN A CHANCE OF SHOWERS AFTER
MIDNIGHT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-140800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
800 PM EDT WED MAY 13 2026
TONIGHT...S WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SHOWERS WITH A SLIGHT CHANCE OF TSTMS EARLY THIS EVENING, THEN A
SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
NW WINDS 10 TO 15 KT. WAVES 1 FT.
FRI NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-140800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
800 PM EDT WED MAY 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
TONIGHT...SE WINDS 15 KT WITH GUSTS TO 25 KT
BECOMING SW 5 KT
AFTER MIDNIGHT, THEN BECOMING NW LATE. WAVES 2 TO 3 FT...SUBSIDING
TO 1 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
TSTMS EARLY THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 10 TO 15 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...SW WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
MON
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-140800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
800 PM EDT WED MAY 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
TONIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING W
LATE. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF TSTMS EARLY THIS
EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
THU
NW WINDS 10 TO 15 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SE WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-140800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
800 PM EDT WED MAY 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
TONIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
DIMINISHING TO
10 KT AFTER MIDNIGHT, THEN BECOMING NW LATE. WAVES 2 TO 3 FT...
SUBSIDING TO 1 FT AFTER MIDNIGHT. SHOWERS WITH A CHANCE OF TSTMS
EARLY THIS EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-140800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
800 PM EDT WED MAY 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
TONIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW
5 KT AFTER MIDNIGHT, THEN BECOMING NW LATE. WAVES 1 FT. SHOWERS WITH
A CHANCE OF TSTMS EARLY THIS EVENING, THEN A CHANCE OF SHOWERS AFTER
MIDNIGHT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
SW WINDS AROUND 5 KT. WAVES FLAT.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-140800-
CHESTER RIVER TO QUEENSTOWN MD-
800 PM EDT WED MAY 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
TONIGHT...S WINDS 10 TO 15 KT
BECOMING W LATE. GUSTS UP TO 20 KT.
WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF TSTMS EARLY THIS EVENING,
THEN SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 10 TO 15 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-140800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
800 PM EDT WED MAY 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
TONIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
DIMINISHING TO
10 KT AFTER MIDNIGHT, THEN BECOMING NW LATE. WAVES 2 TO 3 FT...
SUBSIDING TO 1 FT LATE. SHOWERS WITH A SLIGHT CHANCE OF TSTMS EARLY
THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON...SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS
BUILDING TO 1 TO
2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-140800-
EASTERN BAY-
800 PM EDT WED MAY 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
TONIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
LATE. WAVES 1 TO 2 FT. SHOWERS WITH A SLIGHT CHANCE OF TSTMS EARLY
THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 10 TO 15 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-140800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
800 PM EDT WED MAY 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
TONIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING SW
10 KT AFTER MIDNIGHT, THEN BECOMING NW LATE. WAVES 2 TO 3 FT...
SUBSIDING TO 1 FT LATE. SHOWERS LIKELY WITH A SLIGHT CHANCE OF TSTMS
EARLY THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI...NW WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. WAVES 2 FT.
FRI NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON...SE WINDS 10 TO 15 KT
BECOMING S 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 FT OR LESS...BUILDING TO 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-140800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
800 PM EDT WED MAY 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
TONIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING SW
10 KT AFTER MIDNIGHT, THEN BECOMING NW LATE. WAVES 1 TO 2 FT.
SHOWERS LIKELY WITH A SLIGHT CHANCE OF TSTMS EARLY THIS EVENING,
THEN SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-140800-
PATUXENT RIVER TO BROOMES ISLAND MD-
800 PM EDT WED MAY 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
TONIGHT...S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
BECOMING NW
LATE. WAVES 1 FT. SHOWERS LIKELY WITH A SLIGHT CHANCE OF TSTMS EARLY
THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 KT. WAVES 1 FT.
FRI
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-140800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
800 PM EDT WED MAY 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
TONIGHT...S WINDS 20 KT WITH GUSTS TO 25 KT
BECOMING SW AFTER
MIDNIGHT, THEN BECOMING NW LATE. WAVES 4 FT... SUBSIDING TO 1 TO
2 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
TSTMS EARLY THIS EVENING, THEN SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
FRI
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
FRI NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SAT NIGHT
S WINDS 10 KT. WAVES 2 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON...S WINDS AROUND 5 KT
INCREASING TO 10 TO 15 KT. WAVES 1 TO
2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-140800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
800 PM EDT WED MAY 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT THURSDAY
TONIGHT...S WINDS 20 KT WITH GUSTS TO 25 KT
BECOMING SW AFTER
MIDNIGHT, THEN BECOMING NW LATE. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF TSTMS EARLY THIS EVENING, THEN
SHOWERS LIKELY AFTER MIDNIGHT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
THU NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
FRI
NW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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