470
FZUS51 KLWX 082058
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 PM EDT SAT AUG 8 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.
ANZ500-090800-
457 PM EDT SAT AUG 8 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BE PERSISTENT OFF THE EAST COAST INTO EARLY NEXT
WEEK. SHOWER AND THUNDERSTORM CHANCES CONTINUE THROUGH SATURDAY
AFTERNOON, BEFORE TAKING A BRIEF REPRIEVE SUNDAY. DAILY SHOWER AND
STORM CHANCES RETURN MONDAY THROUGH MUCH OF NEXT WEEK. GUSTY WINDS
AND FREQUENT CLOUD TO GROUND LIGHTNING WILL BE THE PRIMARY THREATS
WITH ANY STORMS. SPECIAL MARINE WARNINGS WILL BE A POSSIBILITY EACH
DAY, WITH THE HIGHEST CHANCES OVER THE NORTHERN WATERS. HOWEVER,
ANYWHERE ON THE WATERS WILL HAVE A CHANCE AT STORMS.
ANZ535-090800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 PM EDT SAT AUG 8 2026
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT. SCATTERED SHOWERS WITH
A CHANCE OF TSTMS.
SUN
W WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-090800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 PM EDT SAT AUG 8 2026
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS WITH A
CHANCE OF TSTMS.
SUN
W WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-090800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 PM EDT SAT AUG 8 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS WITH A
CHANCE OF TSTMS.
SUN...W WINDS 5 TO 10 KT
BECOMING SE LATE. WAVES 1 FT.
SUN NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-090800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 PM EDT SAT AUG 8 2026
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT. A SLIGHT
CHANCE OF TSTMS WITH ISOLATED SHOWERS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY THROUGH THE
NIGHT. A CHANCE OF TSTMS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WED
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-090800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 PM EDT SAT AUG 8 2026
REST OF THIS AFTERNOON
S WINDS 15 KT. WAVES 1 FT. A SLIGHT CHANCE
OF TSTMS WITH ISOLATED SHOWERS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON...NW WINDS AROUND 5 KT
BECOMING SW IN THE AFTERNOON. WAVES
1 FT OR LESS.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS IN THE AFTERNOON. A CHANCE OF SHOWERS AND TSTMS
THROUGH THE NIGHT.
WED
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-090800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 PM EDT SAT AUG 8 2026
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT. A SLIGHT
CHANCE OF TSTMS WITH ISOLATED SHOWERS.
TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
W WINDS 5 KT. WAVES FLAT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS THROUGH THE NIGHT. A CHANCE OF SHOWERS AND TSTMS
AFTER MIDNIGHT.
WED
W WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND
TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-090800-
CHESTER RIVER TO QUEENSTOWN MD-
457 PM EDT SAT AUG 8 2026
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT. A SLIGHT
CHANCE OF TSTMS WITH ISOLATED SHOWERS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
MON
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-090800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 PM EDT SAT AUG 8 2026
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS WITH A
CHANCE OF TSTMS.
SUN
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
MON...NW WINDS 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT OR
LESS.
MON NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED
W 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.
ANZ540-090800-
EASTERN BAY-
457 PM EDT SAT AUG 8 2026
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS WITH A
CHANCE OF TSTMS.
SUN
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-090800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 PM EDT SAT AUG 8 2026
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT. A SLIGHT CHANCE
OF TSTMS WITH ISOLATED SHOWERS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
AFTERNOON. A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-090800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 PM EDT SAT AUG 8 2026
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT. A SLIGHT
CHANCE OF TSTMS WITH ISOLATED SHOWERS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS WITH A
CHANCE OF TSTMS.
SUN
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
AFTERNOON. A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-090800-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 PM EDT SAT AUG 8 2026
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS WITH A
CHANCE OF TSTMS.
SUN
W WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-090800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 PM EDT SAT AUG 8 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 2 FT.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SCATTERED SHOWERS WITH A CHANCE OF TSTMS.
SUN
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED...W WINDS 5 TO 10 KT
BECOMING SW. WAVES 1 FT. A CHANCE OF
SHOWERS IN THE AFTERNOON. A CHANCE OF SHOWERS AND TSTMS THROUGH THE
NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-090800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 PM EDT SAT AUG 8 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
REST OF THIS AFTERNOON
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SCATTERED SHOWERS WITH A CHANCE OF TSTMS.
SUN
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED...W WINDS 5 TO 10 KT
BECOMING SW. WAVES 1 FT. A CHANCE OF
SHOWERS IN THE AFTERNOON. A CHANCE OF SHOWERS AND TSTMS THROUGH THE
NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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