Flash Flood Watch Through Late Tonight in Philly, Surrounding Counties, Tri-State Area

National Weather Service with a drive-time warning.

Screen Shot 2014-06-13 at 4.14.04 PMProceed with caution as you make your way home this evening, as the National Weather Service in Mount Holly has issued a flash flood watch in Southeastern Pennsylvania, South Jersey and Northern Delaware (full list of affected areas below) through late tonight.

“Variable rainfall overnight between one half and 2.5 inches in a large portion of the watch area along with flooding in Southeastern Pennsylvania and far Northwest New Jersey this morning has set the stage for the potential for new flooding,” says the NWS.

“The flash flood threat in Eastern Pennsylvania and far Northern Delaware is mostly this afternoon and evening while in New Jersey the primary risk for flash flooding is between 3 p.m. and midnight”


How to proceed? "Do not drive your vehicle into areas where the water covers the roadway. The water depth may be too great to allow your car to cross safely. Move to higher ground," advised the NWS about an earlier flood advisory.

About the flash flood watch, it adds, "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."

Be alert.

...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE...NEW
  JERSEY AND PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN
  NORTHERN DELAWARE...NEW CASTLE. IN NEW JERSEY...CAMDEN...
  GLOUCESTER...HUNTERDON...MERCER...MIDDLESEX...MORRIS...
  NORTHWESTERN BURLINGTON...SALEM...SOMERSET...SUSSEX AND
  WARREN. IN PENNSYLVANIA...BERKS...CARBON...DELAWARE...EASTERN
  CHESTER...EASTERN MONTGOMERY...LEHIGH...LOWER BUCKS...MONROE...
   NORTHAMPTON...PHILADELPHIA...UPPER BUCKS...WESTERN CHESTER
  AND WESTERN MONTGOMERY.

* THROUGH LATE TONIGHT

* VARIABLE RAINFALL OVERNIGHT BETWEEN ONE HALF AND AND 2.5 INCHES
  IN A LARGE PORTION OF THE WATCH AREA ALONG WITH FLOODING IN
  SOUTHEASTERN PENNSYLVANIA AND FAR NORTHWEST NEW JERSEY THIS
  MORNING HAS SET THE STAGE FOR THE POTENTIAL FOR NEW FLOODING.

* VERY FAST RESPONSE IS EXPECTED TO THE UPCOMING HEAVY SHOWERS AND
  SCATTERED THUNDERSTORMS.

* THE FLASH FLOOD THREAT IN EASTERN PENNSYLVANIA AND FAR NORTHERN
  DELAWARE IS MOSTLY THIS AFTERNOON AND EVENING WHILE IN NEW
  JERSEY THE PRIMARY RISK FOR FLASH FLOODING IS BETWEEN 3 PM AND
  MIDNIGHT.

* RESIDUAL RUNOFF MAY FORCE ANY FLOODING TO LINGER WELL PAST
  MIDNIGHT.

* NEW STORM TOTAL RAINFALL THIS AFTERNOON AND EVENING MAY REACH
  2.5 INCHES. IN MANY AREAS...IT WILL TAKE ONLY AN INCH OF RAIN 45
  MINUTES TO AN HOUR TO PRODUCE FLOODING.

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.

 

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  • poyski

    We in Lower Merion are pleased with the rain. It good for our wrinkles and old dust.