Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 59, NWS Philadelphia/Mount Holly

July 2, 2014Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 2, 2014, 1:34 PM EDT for Monroe County, Pennsylvania. It was in force for 56 min. 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: Jul 2, 2014, 1:34 PM EDT (17:34 UTC)
Expired: Jul 2, 2014, 2:30 PM EDT
In force: 56 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Monroe County, PA

The radar

The Binghamton radar (KBGM), 131 km from the middle of the area, began a volume at 17:37 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

Time	Report	Where	Remark
Jul 2, 1:40 PM EDT	HAIL 0.75	Pocono Summit, PA	PEA TO PENNY SIZE HAIL REPORTED IN POCONO SUMMIT.
Jul 2, 2:04 PM EDT	HAIL 0.33	Scotrun, PA	PEA SIZE HAIL

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 2, 11:14 AM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 5.6 hours before the alert went out and 198 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1420 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 901 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

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

526 
WUUS51 KPHI 021734
SVRPHI
PAC089-021830-
/O.NEW.KPHI.SV.W.0059.140702T1734Z-140702T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
134 PM EDT WED JUL 2 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

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

* UNTIL 230 PM EDT

* AT 132 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR POCONO PINES...MOVING
  NORTHEAST AT 30 MPH. THIS STORM IS CAPABLE OF PRODUCING ONE INCH
  DIAMETER HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  TOBYHANNA AND GOULSBORO STATE PARK AROUND 140 PM EDT...
  MOUNT POCONO AND TOBYHANNA AROUND 145 PM EDT...
  PARADISE VALLEY AND HERNYVILLE AROUND 150 PM EDT...
  MOUNTAINHOME AND CANADENSIS AROUND 155 PM EDT...
  SKYTOP AROUND 200 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE WINDS OF MORE THAN 57 MPH...OR HAIL ONE
INCH OR LARGER.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
WEDNESDAY EVENING FOR NORTHEASTERN PENNSYLVANIA. A SEVERE
THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM EDT WEDNESDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
SOUTHEAST PENNSYLVANIA.

&&

LAT...LON 4125 7512 4116 7515 4115 7509 4113 7506
      4098 7550 4098 7551 4099 7550 4112 7563
      4125 7543 4126 7517
TIME...MOT...LOC 1734Z 241DEG 28KT 4109 7546

$$

FORECASTER:SFJ

2 follow-up statements

359 
WWUS51 KPHI 021749
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
149 PM EDT WED JUL 2 2014

PAC089-021830-
/O.CON.KPHI.SV.W.0059.000000T0000Z-140702T1830Z/
MONROE PA-
149 PM EDT WED JUL 2 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EDT
FOR NORTHERN MONROE COUNTY...

AT 146 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 MOUNT POCONO...MOVING NORTHEAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CRESCO...MOUNTAINHOME...ALPINE MOUNTAIN AND HERNYVILLE BY 155 PM
  EDT...
  MOUNTAINHOME...CANADENSIS AND SKYTOP BY 200 PM EDT...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...MOVE INDOORS TO A
STURDY BUILDING AND STAY AWAY FROM WINDOWS. WHEN IT IS SAFE TO DO
SO...REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR TO THE
NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
WEDNESDAY EVENING FOR NORTHEASTERN PENNSYLVANIA. A SEVERE
THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM EDT WEDNESDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
SOUTHEAST PENNSYLVANIA.

LAT...LON 4125 7512 4116 7515 4115 7509 4113 7506
      4101 7541 4117 7555 4125 7543 4126 7517
TIME...MOT...LOC 1749Z 241DEG 28KT 4114 7533

$$

SFJ

862 
WWUS51 KPHI 021825
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
225 PM EDT WED JUL 2 2014

PAC089-021834-
/O.EXP.KPHI.SV.W.0059.000000T0000Z-140702T1830Z/
MONROE PA-
225 PM EDT WED JUL 2 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN MONROE COUNTY WILL
EXPIRE AT 230 PM EDT...

THE STORM THAT PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF 
THE AREA. THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE AT 230 
PM EDT.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
WEDNESDAY EVENING FOR NORTHEASTERN PENNSYLVANIA.

LAT...LON 4125 7512 4116 7515 4115 7509 4113 7506
      4101 7541 4117 7555 4125 7543 4126 7517
TIME...MOT...LOC 1824Z 241DEG 28KT 4127 7501

$$

SFJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 1:10 PM EDT	Special Weather Statement	PHI	Monroe	65 min
Jul 2, 1:47 PM EDT	Severe Thunderstorm Warning	PHI	Berks	58 min
Jul 2, 2:45 PM EDT	Special Weather Statement	PHI	Berks	30 min
Jul 2, 2:49 PM EDT	Areal Flood Advisory	PHI	Carbon, Monroe	4 hr
Jul 2, 3:00 PM EDT	Areal Flood Advisory	PHI	Berks	2 hr
Jul 2, 3:24 PM EDT	Special Weather Statement	PHI	Bucks	66 min
Jul 2, 3:25 PM EDT	Special Weather Statement	PHI	Carbon, Monroe	65 min
Jul 2, 3:36 PM EDT	Flash Flood Watch	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	46 hr
Jul 2, 3:58 PM EDT	Areal Flood Advisory	PHI	Monroe, Northampton	4 hr
Jul 2, 4:03 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh, Monroe, Northampton	57 min
Jul 2, 4:56 PM EDT	Areal Flood Advisory	PHI	Berks	2 hr
Jul 2, 5:01 PM EDT	Severe Thunderstorm Warning	PHI	Berks	59 min
Jul 2, 5:23 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	67 min
Jul 2, 5:31 PM EDT	Flash Flood Warning	PHI	Berks	4 hr
Jul 2, 5:42 PM EDT	Areal Flood Advisory	PHI	Bucks	3 hr
Jul 2, 5:56 PM EDT	Special Weather Statement	PHI	Lehigh, Northampton	49 min
Jul 2, 6:13 PM EDT	Flash Flood Warning	PHI	Bucks	4 hr
Jul 2, 6:44 PM EDT	Flash Flood Warning	PHI	Berks	4 hr
Jul 2, 6:51 PM EDT	Areal Flood Advisory	PHI	Bucks, Chester, Montgomery	4 hr
Jul 2, 7:00 PM EDT	Special Weather Statement	PHI	Bucks, Chester, Montgomery	60 min
Jul 2, 7:09 PM EDT	Areal Flood Advisory	PHI	Bucks	4 hr
Jul 2, 7:26 PM EDT	Special Weather Statement	PHI	Philadelphia	64 min
Jul 2, 7:32 PM EDT	Special Weather Statement	PHI	Delaware, Montgomery, Philadelphia	58 min
Jul 2, 7:35 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Philadelphia	55 min
Jul 2, 7:48 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	27 min
Jul 2, 7:52 PM EDT	Areal Flood Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	4 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2014 Every severe thunderstorm 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.