370
FZUS51 KLWX 080627
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
227 AM 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.
ANZ500-082000-
227 AM 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 INTO MONDAY. DAILY
SHOWER AND STORM CHANCES RETURN TUESDAY 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. SMALL CRAFT ADVISORIES MAY BE NEEDED AT TIMES THROUGH
SATURDAY DUE TO PERIODS OF SOUTHERLY CHANNELING.
ANZ535-082000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. PATCHY FOG. VSBY
1 TO 3 NM.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND 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.
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.
ANZ536-082000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
W WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT.
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.
ANZ537-082000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SW WINDS AROUND 5 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 KT. WAVES LESS THAN 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.
ANZ530-082000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. PATCHY FOG. VSBY
1 TO 3 NM.
SAT
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
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
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 AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-082000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND 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 OR LESS. 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.
ANZ538-082000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 5 KT. WAVES FLAT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS.
SAT NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS AND TSTMS.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS.
WED
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. 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.
ANZ539-082000-
CHESTER RIVER TO QUEENSTOWN MD-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND 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 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 5 KT. WAVES LESS THAN 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.
ANZ532-082000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND 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
SW 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.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-082000-
EASTERN BAY-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND 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 KT. WAVES LESS THAN 1 FT.
MON NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 KT. WAVES LESS THAN 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.
ANZ533-082000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT.
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. WAVES 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.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-082000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SW WINDS AROUND 5 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.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-082000-
PATUXENT RIVER TO BROOMES ISLAND MD-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
SW WINDS 5 KT. WAVES LESS THAN 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.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-082000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 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. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-082000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
227 AM EDT SAT AUG 8 2026
OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
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. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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