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000 

WGUS71 KPHI 130202

FFSPHI

DEZ001>004-MDZ008-012-015-019-020-NJZ009-010-012>026-PAZ060>062-

067>071-130900-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE MOUNT HOLLY NJ

1000 PM EDT SUN AUG 12 2001



...THE FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE FOLLOWING AREAS 

UNTIL 500 AM EDT MONDAY MORNING



IN PENNSYLVANIA

  NORTHAMPTON                      CHESTER

  MONTGOMERY                       PHILADELPHIA

  BUCKS                            BERKS

  LEHIGH                           DELAWARE



IN NEW JERSEY

  CAMDEN                           OCEAN

  GLOUCESTER                       WESTERN MONMOUTH

  COASTAL OCEAN                    EASTERN MONMOUTH

  ATLANTIC                         CAPE MAY

  CUMBERLAND                       BURLINGTON

  ATLANTIC COASTAL CAPE MAY        MIDDLESEX

  COASTAL ATLANTIC                 SOMERSET

  SALEM                            MERCER

  HUNTERDON



IN DELAWARE

  DELAWARE BEACHES                 INLAND SUSSEX

  NEW CASTLE                       KENT



IN MARYLAND

  CECIL                            KENT

  TALBOT                           QUEEN ANNES

  CAROLINE



THE AREA OF SHOWERS AND THUNDERSTORMS THAT BROUGHT HEAVY DOWNPOURS 

TO PORTIONS OF EASTERN PENNSYLVANIA IS NOW MOVING AWAY FROM NORTHERN 

NEW JERSEY. ANOTHER AREA OF SHOWERS AND THUNDERSTORMS...WITH HEAVY 

DOWNPOURS IS APPROACHING THE STATE OF DELAWARE...NORTHEAST 

MARYLAND...SOUTHEAST PENNSYLVANIA AND SOUTHERN NEW JERSEY.



THE THREAT FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE OVERNIGHT AS 

A FRONTAL BOUNDARY REMAINS STATIONARY OVER THE REGION. WITH A VERY 

MOIST AIRMASS STILL IN PLACE...THE POTENTIAL STILL REMAINS FOR 

ISOLATED TORRENTIAL RAINS OVERNIGHT. 



WHILE THIS WILL NOT BE A WIDESPREAD TORRENTIAL RAIN EVENT... 

THUNDERSTORMS THAT DO DEVELOP WILL BE SLOW MOVING AND MAY PRODUCE AS 

MUCH AS 2 TO 3 INCHES OF RAIN IN A SHORT PERIOD OF TIME. THIS IS 

ENOUGH RAIN TO PRODUCE FLOODING OF SMALL STREAMS AND CREEKS AS WELL 

AS URBAN FLOODING IN POOR DRAINAGE AREAS. LOCATIONS ESPECIALLY AT 

RISK ARE THOSE WHICH RECEIVED HEAVY RAINFALL FROM THUNDERSTORMS 

DURING FRIDAY AFTERNOON AND SATURDAY.



IT APPEARS AS IF THE POTENTIAL FOR HEAVY DOWNPOURS WILL BEGIN TO 

SHIFT TO THE SOUTHEAST LATE TONIGHT ACROSS PENNSYLVANIA AND DURING 

THE DAY MONDAY ACROSS CENTRAL AND SOUTHERN NEW JERSEY...DELAWARE AND 

NORTHEAST MARYLAND.  



A FLASH FLOOD WATCH MEANS THAT FLOODING OF SMALL STREAMS...CREEKS AND

OTHER DRAINAGE AREAS IS POSSIBLE WITHIN THE WATCH AREA. PEOPLE ALONG 

CREEKS AND STREAMS SHOULD MONITOR WATER LEVELS FREQUENTLY IF HEAVY 

RAIN OCCURS. BE READY TO LEAVE IMMEDIATELY IF FLASH FLOODING IS 

OBSERVED OR A WARNING IS ISSUED. IF WATER COVERS THE ROAD AT A 

BRIDGE...DIP OR LOW SPOT...OR IS FLOWING ACROSS THE ROAD...STOP AND 

TURN AROUND.



STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER 

DETAILS OR UPDATES FROM THE NATIONAL WEATHER SERVICE. FOR ADDITIONAL 

WEATHER INFORMATION...VISIT OUR WEB SITE AT WWW.NWS.NOAA.GOV/ER/PHI 

(IN LOWER CASE).



$$

JWH

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