Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 65, NWS Philadelphia/Mount Holly

June 14, 2008Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 14, 2008, 5:07 PM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 14, 2008, 5:07 PM EDT (21:07 UTC)
Expired
Jun 14, 2008, 6:00 PM EDT
In force
53 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Carbon County, PA, Monroe County, PA

The radar

The Binghamton radar (KBGM), 134 km from the middle of the area, began a volume at 21:07 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.1 hours before the alert went out and 199 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 2008-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 29 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2008-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.1939Sfc1 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
29 J/kg
Mixed-layer CIN
-177 J/kg
Mixed-layer LCL
1159 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KPHI 142107
SVRPHI
PAC025-089-142200-
/O.NEW.KPHI.SV.W.0065.080614T2107Z-080614T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
507 PM EDT SAT JUN 14 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL CARBON COUNTY IN NORTHEAST PENNSYLVANIA...
  MONROE COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 600 PM EDT

* AT 503 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  MOUNT POCONO...OR ABOUT 23 MILES SOUTHEAST OF SCRANTON...AND MOVING
  EAST AT 20 MPH. A SECOND PROBABLY SEVERE STORM WAS APPROACHING 
  ALBRIGHTSVILLE IN CARBON COUNTY.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MOUNTAINHOME AND PARADISE VALLEY BY 515 PM...
  CANADENSIS...ALPINE MOUNTAIN...SKYTOP AND HERNYVILLE BY 520 PM...
  ALPINE MOUNTAIN AND 8 MILES NORTH OF ANALOMINK BY 525 PM...
  7 MILES NORTH OF ECHO LAKE BY 550 PM...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAINFALL WHICH MAY
RESULT IN LOCALIZED AREAS OF FLOODING. DO NOT DRIVE IN AREAS WHERE
WATER IS CROSSING THE ROAD.

LAT...LON 4125 7513 4116 7515 4115 7509 4109 7503
      4110 7498 4107 7498 4105 7502 4092 7563
      4102 7563 4125 7548 4125 7530 4126 7514
TIME...MOT...LOC 2107Z 270DEG 17KT 4116 7533

$$

TFG
1 follow-up statement
000 
WWUS51 KPHI 142143
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
542 PM EDT SAT JUN 14 2008

PAC025-089-142200-
/O.CON.KPHI.SV.W.0065.000000T0000Z-080614T2200Z/
CARBON PA-MONROE PA-
542 PM EDT SAT JUN 14 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR MONROE AND EAST CENTRAL CARBON COUNTIES...

AT 539 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR 
INDICATED ANOTHER LIKELY SEVERE THUNDERSTORM 
CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS TO 60 MPH.
THIS STORM WAS LOCATED NEAR TOBYHANNA...OR 20 MILES SOUTHEAST 
OF SCRANTON...MOVING EAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  8 MILES NORTH OF SCOTRUN BY 550 PM EDT...
  CANADENSIS...SKYTOP...MOUNTAINHOME AND PARADISE VALLEY BY 555 PM
  EDT...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LAT...LON 4125 7513 4116 7515 4115 7509 4109 7503
      4110 7499 4107 7498 4105 7502 4092 7563
      4103 7563 4125 7548 4125 7530 4126 7514
TIME...MOT...LOC 2142Z 256DEG 33KT 4117 7543

$$
 
TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 2:23 PM EDTFlash Flood WarningPHIMonroe3 hr
Jun 14, 3:02 PM EDTSevere Thunderstorm WarningPHIMonroe58 min
Jun 14, 4:26 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe, Northampton64 min
Jun 14, 4:49 PM EDTFlash Flood WarningPHICarbon5 hr
Jun 14, 5:18 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe57 min
Jun 14, 6:15 PM EDTSevere Thunderstorm WarningPHIChester75 min
Jun 14, 6:28 PM EDTFlash Flood WarningPHIChester60 min
Jun 14, 6:48 PM EDTFlash Flood WarningPHICarbon, Monroe3 hr
Jun 14, 7:05 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Montgomery70 min
Jun 14, 7:42 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Montgomery63 min
Jun 14, 7:56 PM EDTSevere Thunderstorm WarningPHIBucks, Delaware, Philadelphia79 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2008Every severe thunderstorm warning in 2008

Sources

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