[MTHOLLYSVRWX] Flood Watch : PHI@ 9/3/2012 3:00:50 PM

[svrwx at wx3i.net]

WGUS61 KPHI 031900
FFAPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
300 PM EDT MON SEP 3 2012

...TROPICAL RAINS THREATEN TO PRODUCE POCKETS OF FLASH FLOODING
AT TIMES INTO EARLY WEDNESDAY...

.A WARM FRONT ACROSS DELMARVA WILL BE SLOWLY LIFTING NORTH THROUGH
TUESDAY AS LOW PRESSURE MOVES FROM THE LOWER OHIO VALLEY TOWARD NEW
YORK STATE. THE LOW SHOULD TRAIL A WEAK COOL FRONT SOUTHWARD INTO
THE DELAWARE VALLEY ON WEDNESDAY. POCKETS OF SHORT DURATION EXCESSIVE
RAINS ARE PROBABLE IN THIS PATTERN...ESPECIALLY SINCE THE BANDS OF
SHOWERS AND EMBEDDED THUNDERSTORMS WILL BE MOVING ONLY VERY SLOWLY
NORTHEASTWARD.

DEZ001-NJZ015>019-PAZ067>071-040300-
/O.NEW.KPHI.FF.A.0004.120903T1900Z-120905T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-MERCER-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...TRENTON...PENNSVILLE...
GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...
WEST CHESTER...NORRISTOWN...DOYLESTOWN...MEDIA...PHILADELPHIA
300 PM EDT MON SEP 3 2012

...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TUESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...NEW 
  JERSEY AND SOUTHEAST PENNSYLVANIA...INCLUDING THE FOLLOWING 
  AREAS...IN NORTHERN DELAWARE...NEW CASTLE. IN NEW JERSEY... 
  CAMDEN...GLOUCESTER...MERCER...NORTHWESTERN BURLINGTON AND 
  SALEM. IN SOUTHEAST PENNSYLVANIA...BUCKS...CHESTER... 
  DELAWARE...MONTGOMERY AND PHILADELPHIA. 

* THROUGH LATE TUESDAY NIGHT

* GENERAL RAINFALL OF 2 TO 4 INCHES IS EXPECTED BY DAYBREAK
  WEDNESDAY IN THE INTERSTATE 95 CORRIDOR FROM NEAR TRENTON
  THROUGH THE PHILADELPHIA METRO AREA INTO NORTHERN DELAWARE.

* FOR NOW...THE PRIMARY FLOOD THREAT IS FOR SMALL STREAMS AND POOR
  DRAINAGE AREAS. BANDS OF HEAVY SHOWERS WITH EMBEDDED THUNDERSTORMS
  CAN EASILY PRODUCE 1 TO 2 INCHES OF RAIN IN AN HOURS TIME. IF A
  BAND OF HEAVY SHOWERS LINGERS...EXCESSIVE RAINFALL WOULD RESULT
  IN FLOODING OF SMALL STREAMS AND AND POOR DRAINAGE AREAS.
  
* THE HEAVY SHOWERS AND ISOLATED EMBEDDED THUNDERSTORMS MOVING
  NORTHWARD THROUGH THE AREA THIS AFTERNOON AND EVENING SHOULD
  QUIT FOR A TIME BUT THEN MAY START AGAIN BY DAYBREAK. THE
  LARGER SCALE OUTBREAK OF HEAVY RAINS SHOULD DEVELOP SOMETIME
  TUESDAY AFTERNOON AND LAST INTERMITTENTLY INTO WEDNESDAY MORNING
  AS A WEAK FRONT MOVES EASTWARD THROUGH PENNSYLVANIA.

* THERE ALREADY HAVE BEEN ABOUT REPORTS OF MORE THAN 3 INCHES OF
  RAIN TODAY IN PARTS OF SOUTHEAST PENNSYLVANIA AND NORTHERN
  DELAWARE. THIS RESULTED IN ISOLATED FLOODING OF SMALL STREAMS
  AND POOR DRAINAGE AREAS. LARGER SCALE FLOOD EVENTS ARE POSSIBLE
  BY WEDNESDAY MORNING. ISOLATED STORM TOTALS BETWEEN 4 PM THIS
  AFTERNOON AND 6 AM WEDNESDAY MAY APPROACH 6 INCHES.


PRECAUTIONARY/PREPAREDNESS
  ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$


DRAG