843
FZUS51 KLWX 230257
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1057 PM EDT WED JUL 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.
ANZ500-230800-
1057 PM EDT WED JUL 22 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD IN FROM THE WEST FOR THE END OF THE WEEK.
THE NEXT FRONTAL SYSTEM MAY APPROACH BY EARLY NEXT WEEK.
ANZ535-230800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1057 PM EDT WED JUL 22 2026
REST OF TONIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS
AND TSTMS LATE THIS EVENING.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-230800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1057 PM EDT WED JUL 22 2026
REST OF TONIGHT
N WINDS 10 KT. WAVES 1 FT. SHOWERS AND SCATTERED
TSTMS LATE THIS EVENING, THEN SCATTERED SHOWERS WITH ISOLATED TSTMS.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS THROUGH THE NIGHT.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-230800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1057 PM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
REST OF TONIGHT...W WINDS 10 KT
BECOMING N. GUSTS UP TO 20 KT.
WAVES 1 TO 2 FT. SHOWERS. NUMEROUS TSTMS LATE THIS EVENING, THEN
SCATTERED TSTMS. PATCHY FOG LATE THIS EVENING. PATCHY FOG. VSBY 1 NM
OR LESS.
THU
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL LATE AFTERNOON.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS THROUGH THE NIGHT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-230800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1057 PM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THURSDAY
REST OF TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES FLAT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS AROUND 5 KT. WAVES FLAT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-230800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1057 PM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THURSDAY
REST OF TONIGHT
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
THU...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING NE 5 KT
LATE. WAVES 1 TO 2 FT.
THU NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-230800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1057 PM EDT WED JUL 22 2026
REST OF TONIGHT
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 KT. WAVES FLAT.
SAT NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-230800-
CHESTER RIVER TO QUEENSTOWN MD-
1057 PM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THURSDAY
REST OF TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 TO 2 FT. ISOLATED SHOWERS AND TSTMS LATE THIS EVENING, THEN
ISOLATED SHOWERS.
THU
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
THU NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS AROUND 5 KT. WAVES FLAT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-230800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1057 PM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THURSDAY
REST OF TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 TO 2 FT. NUMEROUS SHOWERS AND SCATTERED TSTMS LATE THIS EVENING,
THEN SCATTERED SHOWERS WITH ISOLATED TSTMS.
THU...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING NE 5 KT
LATE. WAVES 1 TO 2 FT.
THU NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-230800-
EASTERN BAY-
1057 PM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THURSDAY
REST OF TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 TO 2 FT. SCATTERED SHOWERS. SCATTERED TSTMS LATE THIS EVENING,
THEN ISOLATED TSTMS.
THU...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 KT LATE. WAVES 1 FT.
THU NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-230800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1057 PM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
REST OF TONIGHT...W WINDS 10 KT
BECOMING N 15 TO 20 KT. WAVES
1 TO 2 FT...BUILDING TO 3 FT LATE. SHOWERS. SCATTERED TSTMS LATE
THIS EVENING, THEN ISOLATED TSTMS.
THU
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
THU NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN...SE WINDS 5 TO 10 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS THROUGH THE NIGHT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-230800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1057 PM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
REST OF TONIGHT...NW WINDS 10 TO 15 KT
BECOMING N LATE. GUSTS UP
TO 20 KT. WAVES 1 TO 2 FT. SHOWERS AND SCATTERED TSTMS.
THU...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 KT LATE. WAVES 1 TO 2 FT.
THU NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-230800-
PATUXENT RIVER TO BROOMES ISLAND MD-
1057 PM EDT WED JUL 22 2026
REST OF TONIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT. WAVES
1 FT. SHOWERS AND SCATTERED TSTMS.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
SE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-230800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1057 PM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
REST OF TONIGHT...W WINDS 15 KT
BECOMING N. GUSTS UP TO 20 KT.
WAVES 1 TO 2 FT. SHOWERS. NUMEROUS TSTMS LATE THIS EVENING, THEN
SCATTERED TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...E WINDS 5 KT
BECOMING S. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS THROUGH THE NIGHT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-230800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1057 PM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
REST OF TONIGHT...W WINDS 15 KT
BECOMING N. GUSTS UP TO 20 KT.
WAVES 1 FT. SHOWERS AND NUMEROUS TSTMS LATE THIS EVENING, THEN
SHOWERS AND SCATTERED TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL LATE AFTERNOON.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
THU NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN...SE WINDS 5 KT
BECOMING S. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS THROUGH THE NIGHT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING. A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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