887
FZUS51 KLWX 092208
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
607 PM EDT THU JUL 9 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.
ANZ500-100800-
607 PM EDT THU JUL 9 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A FRONTAL ZONE WILL MEANDER ABOUT THE MID-ATLANTIC THROUGH FRIDAY.
ANOTHER COLD FRONT WILL PUSH SOUTH ACROSS THE WATERS THIS WEEKEND
BEFORE SETTLING SOUTH OVER THE CAROLINAS BY EARLY NEXT WEEK. SPECIAL
MARINE WARNINGS MAY BE NEEDED FOR STRONG TO SEVERE THUNDERSTORMS
THROUGH SATURDAY, BUT ESPECIALLY THIS AFTERNOON AND EVENING.
ANZ535-100800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS WITH
TSTMS LIKELY THIS EVENING.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT. SCATTERED TSTMS WITH A
CHANCE OF SHOWERS.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS.
SAT
NW WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SAT NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT.
SUN
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
MON
SE WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-100800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS WITH TSTMS
LIKELY THIS EVENING.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT. SCATTERED TSTMS WITH A
CHANCE OF SHOWERS.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
NW WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SAT NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON...E WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-100800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH TSTMS LIKELY
THIS EVENING.
FRI
W WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED TSTMS WITH A
CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS 5 KT. WAVES FLAT. SCATTERED SHOWERS.
SAT
NW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
SAT NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...NE WINDS AROUND 5 KT
BECOMING S. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-100800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS WITH TSTMS
LIKELY THIS EVENING, THEN A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF TSTMS AFTER MIDNIGHT.
FRI
W WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED TSTMS WITH A
CHANCE OF SHOWERS.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
MON
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-100800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS WITH TSTMS
LIKELY THIS EVENING, THEN A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF TSTMS AFTER MIDNIGHT.
FRI
W WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED TSTMS WITH A
CHANCE OF SHOWERS.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON...E WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT OR
LESS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-100800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT
W WINDS 5 KT. WAVES FLAT. SHOWERS WITH TSTMS LIKELY THIS
EVENING, THEN A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
W WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED TSTMS WITH A
CHANCE OF SHOWERS.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
MON
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-100800-
CHESTER RIVER TO QUEENSTOWN MD-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS WITH TSTMS
LIKELY THIS EVENING, THEN A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF TSTMS AFTER MIDNIGHT.
FRI
W WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED TSTMS WITH A
CHANCE OF SHOWERS.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SAT NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-100800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. SHOWERS WITH TSTMS LIKELY THIS EVENING, THEN A SLIGHT CHANCE
OF SHOWERS AND TSTMS AFTER MIDNIGHT.
FRI
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED TSTMS WITH A
CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON...E WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT OR
LESS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-100800-
EASTERN BAY-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS WITH TSTMS
LIKELY THIS EVENING, THEN A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF TSTMS AFTER MIDNIGHT.
FRI
W WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED TSTMS WITH A
CHANCE OF SHOWERS.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-100800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. SHOWERS WITH TSTMS LIKELY THIS EVENING, THEN A SLIGHT CHANCE
OF SHOWERS AND TSTMS AFTER MIDNIGHT.
FRI...W WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT. SCATTERED
TSTMS WITH A CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED SHOWERS.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON...E WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
TUE...NW WINDS AROUND 5 KT
BECOMING S. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-100800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. SHOWERS WITH TSTMS LIKELY THIS EVENING, THEN A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF TSTMS AFTER MIDNIGHT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED TSTMS WITH A CHANCE
OF SHOWERS.
FRI NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS.
SAT
N WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-100800-
PATUXENT RIVER TO BROOMES ISLAND MD-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS WITH TSTMS
LIKELY THIS EVENING, THEN A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
W WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED TSTMS WITH A
CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
N WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
SAT NIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SE WINDS AROUND 5 KT. WAVES 1 FT.
TUE
S WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-100800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. SHOWERS WITH TSTMS LIKELY THIS EVENING, THEN A SLIGHT CHANCE
OF SHOWERS AND TSTMS AFTER MIDNIGHT.
FRI...W WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT. SCATTERED
TSTMS WITH A CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
SAT NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN
NE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...NE WINDS 5 KT
BECOMING SE IN THE AFTERNOON AND EVENING,
THEN BECOMING SW AFTER MIDNIGHT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-100800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
607 PM EDT THU JUL 9 2026
...SEVERE THUNDERSTORM WATCH 474 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
TONIGHT...SW WINDS 10 KT
BECOMING W LATE. WAVES 1 FT. SHOWERS
WITH TSTMS LIKELY THIS EVENING, THEN A SLIGHT CHANCE OF SHOWERS AND
TSTMS AFTER MIDNIGHT.
FRI...W WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT. SCATTERED
TSTMS WITH A CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
NE WINDS 10 KT. WAVES 1 FT.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...NE WINDS 5 KT
BECOMING S. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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