Alert archive / Pennsylvania / Flash Flood Warnings in 2014

Flash Flood Warning 8, NWS Philadelphia/Mount Holly

June 13, 20145 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 13, 2014, 1:25 PM EDT for 5 counties in Pennsylvania. It was in force for 4 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 13, 2014, 1:25 PM EDT (17:25 UTC)
Expired
Jun 13, 2014, 5:15 PM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Berks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA

The radar

The Binghamton radar (KBGM), 147 km from the middle of the area, began a volume at 17:28 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 13, 2:15 PM EDTFLASH FLOODReading, PAMULTIPLE ROADWAYS REPORTED TO BE FLOODED AROUND THE READING AREA.
Jun 13, 2:15 PM EDTFLASH FLOODReading, PAMULTIPLE ROADWAYS REPORTED TO BE FLOODED AROUND THE READING AREA... INCLUDING ROUTE 12. SPRING STREET WAS CLOSED BETWEEN THE 600 AND 800 BLOCKS WITH THE UNDERPASS REPORTED TO BE SUBMERGED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 5.4 hours before the alert went out and 241 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2014-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 101 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2014-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
101 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
502 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

949 
WGUS51 KPHI 131725
FFWPHI
PAC011-025-077-089-095-132115-
/O.NEW.KPHI.FF.W.0008.140613T1725Z-140613T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
125 PM EDT FRI JUN 13 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BERKS COUNTY IN EASTERN PENNSYLVANIA...
  THIS INCLUDES THE CITY OF READING...
  NORTHWESTERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
  WEST CENTRAL NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  CARBON COUNTY IN NORTHEAST PENNSYLVANIA...
  THIS INCLUDES THE CITY OF LEHIGHTON...
  MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
  THIS INCLUDES THE CITY OF MOUNT POCONO...

* UNTIL 515 PM EDT

* AT 118 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS SHOWING 
  THUNDERSTORMS ENTERING THE WARNED AREA. THESE THUNDERSTORMS WERE   
  PRODUCING HEAVY RAIN. ONE TO THREE INCHES PER HOUR CAN BE EXPECTED 
  WITH THE MOST INTENSE STORMS. THIS AMOUNT OF RAIN IN A ONE HOUR    
  TIME FRAME WILL LEAD TO FLOODING.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  FLEETWOOD...WEATHERLY...SCHNECKSVILLE...PALMERTON...NESQUEHONING...
  JIM THORPE...BRODHEADSVILLE...WANAMAKERS...WALNUTPORT...
  TOBYHANNA...TANNERSVILLE...SUN VALLEY...STRAUSSTOWN...SLATINGTON...
  SKYTOP...SHOEMAKERSVILLE...SCOTRUN...ROSSLAND...REEDERS...POCONO
  RACEWAY...POCONO PINES...PENN FOREST RESERVOIR...PARADISE VALLEY...
  NEW TRIPOLI...NEW MAHONING...NEFFS...MOUNTAINHOME...MECKESVILLE...
  MCMICHAEL...LYONS...LONG POND...LENHARTSVILLE...LAKE HARMONY...
  KUTZTOWN...KUNKLETOWN...KRESGEVILLE...JORDAN VALLEY...HAMBURG...
  GILBERT...EMERALD...CLAUSSVILLE...CHRISTMANS...CANADENSIS...
  BLAKESLEE...BELTZVILLE STATE PARK...ARROWHEAD LAKE...ALPINE
  MOUNTAIN...ALBRIGHTSVILLE...HERNYVILLE...GOULSBORO STATE PARK...
  BERLINSVILLE AND DANIELSVILLE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4058 7603 4065 7599 4074 7577 4092 7600
      4100 7575 4110 7576 4114 7569 4113 7564
      4123 7554 4125 7512 4116 7515 4115 7513
      4021 7598 4049 7644

$$

KRUZDLO
1 follow-up statement
967 
WGUS71 KPHI 132013
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
413 PM EDT FRI JUN 13 2014

PAC011-025-077-089-095-132022-
/O.CAN.KPHI.FF.W.0008.000000T0000Z-140613T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BERKS PA-LEHIGH PA-MONROE PA-CARBON PA-NORTHAMPTON PA-
413 PM EDT FRI JUN 13 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WEST CENTRAL
NORTHAMPTON...CARBON...MONROE...NORTHWESTERN LEHIGH AND BERKS
COUNTIES...

THE HEAVY RAIN HAS MOVED OUT OF THE AREA. THERE WERE SOME FLOODED 
ROADWAYS IN AND AROUND THE READING AREA. EMERGENCY MANAGEMENT 
INDICATED THAT THE FLOODING HAS DIMINISHED.

LAT...LON 4058 7603 4065 7599 4074 7577 4092 7600
      4100 7575 4110 7576 4114 7569 4113 7564
      4123 7554 4125 7512 4116 7515 4115 7513
      4021 7598 4049 7644

$$

KRUZDLO

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 13, 3:25 AM EDTSpecial Weather StatementPHIBucks, Lehigh65 min
Jun 13, 4:28 AM EDTSpecial Weather StatementPHILehigh, Northampton62 min
Jun 13, 4:46 AM EDTAreal Flood AdvisoryPHIBerks, Chester, Lehigh, Montgomery3 hr
Jun 13, 6:17 AM EDTRiver Flood WarningPHIChester4 hr
Jun 13, 6:41 AM EDTAreal Flood WarningPHIBerks, Bucks, Chester, Lehigh, Montgomery15 hr
Jun 13, 11:54 AM EDTFlash Flood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more11 hr
Jun 13, 12:36 PM EDTSpecial Weather StatementPHIBerks69 min
Jun 13, 1:48 PM EDTFlash Flood WarningPHIBerks, Bucks, Chester, Lehigh, Montgomery4 hr
Jun 13, 1:48 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh57 min
Jun 13, 2:16 PM EDTSpecial Weather StatementPHICarbon, Chester, Lehigh, Monroe, Northampton119 min
Jun 13, 2:34 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Lehigh, Montgomery48 min
Jun 13, 2:42 PM EDTSevere Thunderstorm WarningPHILehigh, Northampton63 min
Jun 13, 2:52 PM EDTAreal Flood AdvisoryPHIBucks, Monroe, Northampton4 hr
Jun 13, 3:14 PM EDTSpecial Weather StatementPHIBucks, Monroe, Montgomery, Northampton2 hr
Jun 13, 3:16 PM EDTAreal Flood AdvisoryPHIBucks, Chester, Delaware, Montgomery, Philadelphia4 hr
Jun 13, 3:38 PM EDTSevere Thunderstorm WarningPHIBucks, Northampton52 min
Jun 13, 3:52 PM EDTSpecial Weather StatementPHIDelaware, Philadelphia53 min
Jun 13, 4:58 PM EDTSevere Thunderstorm WarningPHIPhiladelphia23 min
Jun 13, 5:04 PM EDTAreal Flood AdvisoryPHIBucks4 hr

Nearby

Flash Flood Warnings in Pennsylvania, 2014Every flash flood warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.