Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 14, NWS Philadelphia/Mount Holly

May 22, 2013Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 22, 2013, 10:40 PM EDT for Monroe County, Pennsylvania. It was in force for 50 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
May 22, 2013, 10:40 PM EDT (02:40 UTC)
Expired
May 22, 2013, 11:30 PM EDT
In force
50 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

County Monroe County, PA

The radar

The Philadelphia radar (KDIX), 132 km from the middle of the area, began a volume at 02:42 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 00:00Z, 2.7 hours before the alert went out and 196 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 00:00Z on 2013-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 280 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 00:00Z on 2013-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 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
280 J/kg
Mixed-layer CIN
-260 J/kg
Mixed-layer LCL
806 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
84 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.

006 
WUUS51 KPHI 230240
SVRPHI
PAC089-230330-
/O.NEW.KPHI.SV.W.0014.130523T0240Z-130523T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1040 PM EDT WED MAY 22 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN MONROE COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 1130 PM EDT

* AT 1038 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  SAYLORSBURG...OR 18 MILES NORTHWEST OF EASTON...AND MOVING
  NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  REEDERS AROUND 1050 PM EDT...
  6 MILES SOUTHEAST OF TANNERSVILLE AROUND 1055 PM EDT...
  STORMVILLE AROUND 1100 PM EDT...
  EAST STROUDSBURG...ANALOMINK AND 8 MILES SOUTHEAST OF HERNYVILLE
  AROUND 1110 PM EDT...
  DELAWARE WATER GAP AND 9 MILES SOUTHEAST OF ALPINE MOUNTAIN AROUND
  1115 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4102 7507 4100 7512 4098 7514 4097 7512
      4095 7515 4095 7517 4094 7518 4093 7521
      4089 7525 4084 7539 4096 7547 4116 7517
TIME...MOT...LOC 0240Z 246DEG 16KT 4093 7534

$$

TFG
2 follow-up statements
376 
WWUS51 KPHI 230255
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1055 PM EDT WED MAY 22 2013

PAC089-230330-
/O.CON.KPHI.SV.W.0014.000000T0000Z-130523T0330Z/
MONROE PA-
1055 PM EDT WED MAY 22 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT
FOR CENTRAL MONROE COUNTY...

AT 1051 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR BARTONSVILLE...OR 20 MILES NORTH OF EASTON...MOVING
NORTHEAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  ARLINGTON HEIGHTS...STROUDSBURG AND TANNERSVILLE BY 1100 PM EDT...
  ANALOMINK AND EAST STROUDSBURG BY 1105 PM EDT...
  HERNYVILLE...HENRYVILLE AND SHAWNEE BY 1110 PM EDT...
  MARSHALLS CREEK AND ALPINE MOUNTAIN BY 1115 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...HEAVY RAIN WILL OCCUR
WITH THESE STORMS AND CAUSE LOW-LYING AND POOR DRAINAGE FLOODING.

&&

LAT...LON 4116 7517 4102 7507 4100 7512 4098 7514
      4097 7513 4093 7521 4091 7524 4089 7525
      4090 7528 4101 7540
TIME...MOT...LOC 0255Z 227DEG 22KT 4099 7528

$$
 
TFG
341 
WWUS51 KPHI 230313
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1113 PM EDT WED MAY 22 2013

PAC089-230322-
/O.CAN.KPHI.SV.W.0014.000000T0000Z-130523T0330Z/
MONROE PA-
1113 PM EDT WED MAY 22 2013

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MONROE COUNTY IS
CANCELLED...

THE STORM HAS WEAKENED AND NO LONGER APPEARS CAPABLE OF PRODUCING 
DAMAGING WINDS OR LARGE HAIL. 

LAT...LON 4116 7517 4102 7507 4100 7512 4098 7514
      4097 7513 4093 7521 4091 7524 4089 7525
      4090 7528 4101 7540
TIME...MOT...LOC 0312Z 227DEG 22KT 4106 7518

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 8:35 PM EDTSpecial Weather StatementPHIBerks85 min
May 22, 9:55 PM EDTSpecial Weather StatementPHICarbon, Lehigh, Monroe, Northampton65 min
May 23, 1:38 PM EDTAreal Flood AdvisoryPHIBerks, Lehigh3 hr
May 23, 2:09 PM EDTSpecial Weather StatementPHILehigh51 min
May 23, 2:31 PM EDTAreal Flood AdvisoryPHICarbon, Monroe, Northampton3 hr
May 23, 3:03 PM EDTSpecial Weather StatementPHINorthampton42 min
May 23, 5:49 PM EDTAreal Flood AdvisoryPHIBucks, Montgomery3 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2013Every severe thunderstorm warning in 2013

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.