Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 13, NWS Philadelphia/Mount Holly

May 26, 2012Monroe County, Northampton County, Pennsylvania; Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 26, 2012, 2:02 PM EDT for Monroe County, Northampton County, Pennsylvania; Warren County, New Jersey. It was in force for 58 min. 5 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
May 26, 2012, 2:02 PM EDT (18:02 UTC)
Expired
May 26, 2012, 3:00 PM EDT
In force
58 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Warren County, NJ, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 132 km from the middle of the area, began a volume at 18:04 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
May 26, 2:06 PM EDTHAIL 0.75Delaware Water Gap, PA
May 26, 2:06 PM EDTHAIL 1.25East Stroudsburg, PA
May 26, 2:15 PM EDTHAIL 0.75Mount Bethel, PAPENNY SIZE HAIL IN MOUNT BETHEL.
May 26, 2:16 PM EDTHAIL 0.75East Stroudsburg, PA
May 26, 2:16 PM EDTHAIL 1East Stroudsburg, PA

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, 6.0 hours before the alert went out and 186 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 2012-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 144 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 2012-05-26The 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
144 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
659 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
105 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.

988 
WUUS51 KPHI 261802
SVRPHI
NJC041-PAC089-095-261900-
/O.NEW.KPHI.SV.W.0013.120526T1802Z-120526T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
202 PM EDT SAT MAY 26 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  EAST CENTRAL MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
  NORTHERN WARREN COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 300 PM EDT

* AT 200 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS TO 60 MPH.  THIS STORM WAS LOCATED NEAR
  DELAWARE WATER GAP...OR 15 MILES SOUTHEAST OF MOUNT POCONO...AND
  MOVING SOUTH AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  7 MILES WEST OF BLAIRSTOWN AROUND 220 PM EDT...
  COLUMBIA AROUND 230 PM EDT...
  EAST BANGOR AND 6 MILES EAST OF BANGOR AROUND 240 PM EDT...
  7 MILES WEST OF HOPE AROUND 250 PM EDT...
  BELVIDERE AROUND 300 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.

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

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 4109 7503 4109 7502 4088 7484 4079 7522
      4107 7527 4114 7507
TIME...MOT...LOC 1802Z 342DEG 9KT 4099 7514

$$

GORSE
2 follow-up statements
397 
WWUS51 KPHI 261813
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
213 PM EDT SAT MAY 26 2012

NJC041-PAC089-095-261900-
/O.CON.KPHI.SV.W.0013.000000T0000Z-120526T1900Z/
WARREN NJ-MONROE PA-NORTHAMPTON PA-
213 PM EDT SAT MAY 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR NORTHEASTERN NORTHAMPTON...EAST CENTRAL MONROE AND NORTHERN
WARREN COUNTIES...

AT 208 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE 
HAIL...AND DAMAGING WINDS TO 60 MPH.  THIS STORM WAS LOCATED NEAR 
DELAWARE WATER GAP...OR 17 MILES SOUTHEAST OF MOUNT POCONO...MOVING 
SOUTH AT 10 MPH.

AT 206 PM, A TRAINED SPOTTER REPORTED PENNY SIZE HAIL IN DELAWARE 
WATER GAP. THIS STORM HAS THE POTENTIAL TO PRODUCE LARGER HAIL, UP 
TO ONE INCH IN DIAMETER.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  COLUMBIA BY 220 PM EDT...
  PORTLAND BY 225 PM EDT...
  EAST BANGOR...7 MILES EAST OF BANGOR AND 7 MILES EAST OF ROSETO BY
  230 PM EDT...
  6 MILES WEST OF HOPE BY 240 PM EDT...
  BELVIDERE BY 255 PM EDT...
  9 MILES WEST OF GREAT MEADOWS AND 9 MILES WEST OF GREAT
  MEADOWS-VIENNA BY 300 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT 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.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 4114 7507 4109 7503 4109 7502 4088 7484
      4079 7522 4105 7527
TIME...MOT...LOC 1811Z 341DEG 10KT 4095 7512

$$

GORSE
407 
WWUS51 KPHI 261853
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
253 PM EDT SAT MAY 26 2012

NJC041-PAC089-095-261901-
/O.EXP.KPHI.SV.W.0013.000000T0000Z-120526T1900Z/
WARREN NJ-MONROE PA-NORTHAMPTON PA-
253 PM EDT SAT MAY 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN NORTHAMPTON...
EAST CENTRAL MONROE AND NORTHERN WARREN COUNTIES WILL EXPIRE AT 300
PM EDT...

A NEW WARNING HAS BEEN ISSUED FARTHER TO THE WEST AND SOUTHWEST, 
THEREFORE THIS INITIAL WARNING WILL BE ALLOWED TO EXPIRE AT 3 PM.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
SATURDAY EVENING FOR NORTHERN NEW JERSEY AND EASTERN PENNSYLVANIA.

LAT...LON 4114 7507 4109 7503 4109 7502 4088 7484
      4079 7522 4105 7527
TIME...MOT...LOC 1851Z 341DEG 10KT 4084 7507

$$

GORSE

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 2:18 PM EDTAreal Flood AdvisoryPHIMonroe, Northampton5 hr
May 26, 2:23 PM EDTAreal Flood AdvisoryPHICarbon3 hr
May 26, 2:36 PM EDTFlash Flood WarningPHIMonroe, Northampton5 hr
May 26, 2:42 PM EDTSevere Thunderstorm WarningPHIMonroe, Northampton48 min
May 26, 2:46 PM EDTSpecial Weather StatementPHICarbon44 min
May 26, 3:15 PM EDTAreal Flood AdvisoryPHICarbon2 hr
May 26, 3:32 PM EDTFlash Flood WarningPHIMonroe, Northampton4 hr
May 26, 3:39 PM EDTSpecial Weather StatementPHIMonroe51 min
May 26, 3:40 PM EDTExcessive Heat WatchPHIDelaware, Philadelphia23 hr
May 26, 3:45 PM EDTAreal Flood AdvisoryPHICarbon3 hr
May 26, 3:48 PM EDTAreal Flood AdvisoryPHIMonroe3 hr
May 26, 3:51 PM EDTSpecial Weather StatementPHICarbon39 min
May 26, 3:54 PM EDTFlash Flood WarningPHICarbon4 hr
May 26, 4:31 PM EDTAreal Flood AdvisoryPHICarbon, Monroe, Northampton3 hr
May 26, 4:37 PM EDTSpecial Weather StatementPHICarbon, Monroe38 min
May 26, 4:54 PM EDTSpecial Weather StatementPHINorthampton51 min
May 26, 5:26 PM EDTSpecial Weather StatementPHIBucks49 min
May 26, 5:33 PM EDTFlash Flood WarningPHIMonroe114 min
May 26, 5:36 PM EDTAreal Flood AdvisoryPHILehigh, Northampton114 min
May 26, 6:02 PM EDTSpecial Weather StatementPHIBerks43 min
May 26, 6:10 PM EDTAreal Flood AdvisoryPHIBerks, Bucks, Montgomery111 min
May 26, 6:26 PM EDTSpecial Weather StatementPHIBerks49 min
May 26, 7:18 PM EDTAreal Flood AdvisoryPHIBucks60 min
May 26, 7:20 PM EDTAreal Flood AdvisoryPHIBerks, Chester59 min
May 26, 1:39 PM EDTSpecial Weather StatementPHIWarren51 min
May 26, 1:42 PM EDTSpecial Weather StatementPHISussex63 min
May 26, 2:28 PM EDTSpecial Weather StatementPHISussex62 min
May 26, 7:30 PM EDTSpecial Weather StatementPHIMiddlesex45 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2012Severe Thunderstorm Warnings in New Jersey, 2012Every severe thunderstorm warning in 2012

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.