000
WGUS61 KPHI 120740
FFAPHI

FLOOD WATCH
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
340 AM EDT MON MAY 12 2008

...POSSIBLE HEAVY RAIN THROUGH THE MORNING COULD PRODUCE SOME
AREAS OF FLOODING...

.A DEEP LOW PRESSURE SYSTEM WAS REORGANIZING OVER THE CENTRAL
CHESAPEAKE BAY EARLY THIS MORNING. THAT LOW WILL STRENGTHEN A BIT
MORE AND THEN LIFT NORTHEAST. HEAVY RAINS HAD FALLEN OVER THE
MARYLAND WESTERN SHORE DURING THE OVERNIGHT HOURS...SO HEAVY RAIN
IN THE WATCH AREA REMAINS POSSIBLE.

DEZ001-MDZ008-PAZ067-070-071-122200-
/O.CON.KPHI.FA.A.0008.000000T0000Z-080512T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW CASTLE-CECIL-CHESTER-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...WEST CHESTER...
MEDIA
340 AM EDT MON MAY 12 2008

...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON...

THE FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHERN DELAWARE...NORTHEAST MARYLAND AND 
  SOUTHEAST PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN 
  NORTHERN DELAWARE...NEW CASTLE. IN NORTHEAST MARYLAND...CECIL. 
  IN SOUTHEAST PENNSYLVANIA...CHESTER...DELAWARE AND 
  PHILADELPHIA.

* THROUGH THIS AFTERNOON

* RAINFALL AMOUNTS THROUGH 200 AM EDT RANGED FROM ONLY AROUND A
  TENTH OF AN INCH OVER PORTIONS OF PHILADELPHIA...DELAWARE AND
  CHESTER COUNTIES IN SOUTHEASTERN PENNSYLVANIA TO AROUND AN INCH
  OVER PORTIONS OF CECIL COUNTY IN NORTHEAST MARYLAND AND NEW
  CASTLE COUNTY IN NORTHERN DELAWARE. HOWEVER...THERE WERE REPORTS
  OF RAINFALL AMOUNTS IN EXCESS OF TWO INCHES ON THE WESTERN SIDE
  OF THE CHESAPEAKE BAY. RADAR EARLY THIS MORNING INDICATED THAT
  SOME WEAK CONVECTIVE CELLS WERE DEVELOPING UPSTREAM OF THE WATCH
  AREA...AND SURFACE ANALYSIS SHOWED DEEP LOW PRESSURE WAS
  ORGANIZING OVER THE CENTRAL CHESAPEAKE BAY. THE POTENTIAL STILL
  EXISTS FOR SUFFICIENT RAINFALL TO TRIGGER FLOODING OF THE
  FLASHIER CREEKS AND STREAMS IN OUR AREA. THEREFORE...THE WATCH
  IS MAINTAINED.

A FLOOD WATCH MEANS THAT FLOODING ALONG STREAMS AND CREEKS IS
POSSIBLE...BUT NOT IMMINENT. THOSE LIVING IN AREAS PRONE TO FLOODING
SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP OR IF A
FLOOD WARNING IS ISSUED.

ONE WAY TO KEEP ABREAST OF EXISTING AND FORECASTED WATER
CONDITIONS ON WATERWAYS THROUGHOUT THE REGION IS TO MONITOR THE
ADVANCED HYDROLOGIC PREDICTION SERVICE /AHPS/ AVAILABLE ON OUR
HOMEPAGE AT WWW.WEATHER.GOV/PHI. JUST CLICK THE AHPS ICON ON THE
LEFT HAND MENU.

$$

MPD