Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 144, NWS Philadelphia/Mount Holly

July 25, 2016Bucks County, Montgomery County, Philadelphia County, Pennsylvania; Burlington County, Camden County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 25, 2016, 6:01 PM EDT for Bucks County, Montgomery County, Philadelphia County, Pennsylvania; Burlington County, Camden County, New Jersey. It was in force for 44 min. 6 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 25, 2016, 6:01 PM EDT (22:01 UTC)
Expired: Jul 25, 2016, 6:45 PM EDT
In force: 44 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Burlington County, NJ, Camden County, NJ, Bucks County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 54 km from the middle of the area, began a volume at 22:05 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 25, 6:02 PM EDT	HAIL 1	1 S Lansdale, PA
Jul 25, 6:10 PM EDT	HAIL 0.75	7 Sw Fricks, PA
Jul 25, 6:41 PM EDT	TSTM WND GST 46	Ne Philadelphia Airport, PA
Jul 25, 6:43 PM EDT	TSTM WND DMG	Willingboro, NJ	LARGE TREE LIMBS DOWN AROUND THE GARFIELD PARK NEIGHBORHOOD.
Jul 25, 6:50 PM EDT	TSTM WND DMG	Delran Twp, NJ	LARGE TREE LIMBS DOWN. TIME ESTIMATED FROM RADAR.
Jul 25, 6:53 PM EDT	TSTM WND DMG	Burlington Twp, NJ	LARGE TREE DOWN AND BLOCKING INTERSECTION OF RANCOCAS AND WOODLANE ROAD. TIME ESTIMATED FROM RADAR.

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 25, 12:43 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.0 hours before the alert went out and 200 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: 136 J/kg
Mixed-layer CIN: -103 J/kg
Mixed-layer LCL: 1205 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

055 
WUUS51 KPHI 252201
SVRPHI
NJC005-007-PAC017-091-101-252245-
/O.NEW.KPHI.SV.W.0144.160725T2201Z-160725T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
601 PM EDT MON JUL 25 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
  NORTHWESTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHERN BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA...
  SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHEASTERN PENNSYLVANIA...
  NORTHERN PHILADELPHIA COUNTY IN SOUTHEASTERN PENNSYLVANIA...

* UNTIL 645 PM EDT

* AT 601 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
  LANSDALE...OR 16 MILES NORTHWEST OF PHILADELPHIA...MOVING EAST AT
  25 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  CHALFONT AROUND 605 PM EDT. AMBLER AND PLYMOUTH MEETING AROUND 610
  PM EDT. HATBORO...JENKINTOWN...ABINGTON...IVYLAND AND WILLOW GROVE
  AROUND 625 PM EDT. ROCKLEDGE AND BRYN ATHYN AROUND 630 PM EDT.
  RICHBORO AROUND 635 PM EDT.
  PHILADELPHIA...NEWTOWN...FEASTERVILLE...FEASTERVILLE-TREVOSE...
  NORTHEAST PHILADELPHIA...HOLMESBURG AND TACONY AROUND 640 PM EDT.
  BENSALEM...WILLINGBORO...BURLINGTON...BRISTOL...RIVERSIDE...BEVERLY
  ... TULLYTOWN...LANGHORNE...LANGHORN AND ANDALUSIA AROUND 645 PM
  EDT. 

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
ORELAND... BRITTANY FARMS-HIGHLANDS...EAGLEVILLE...EDGEWATER PARK...
MONTGOMERYVILLE...DELANCO...CORNWELLS HEIGHTS-EDDINGTON...NORTH
WALES... KULPSVILLE AND WOODBOURNE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3989 7490 4013 7546 4035 7533 4021 7476
      4018 7474
TIME...MOT...LOC 2201Z 289DEG 23KT 4022 7529 

HAIL...1.00IN
WIND...60MPH
 
$$

MEOLA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 3:21 AM EDT	Special Weather Statement	PHI	Chester, Montgomery	39 min
Jul 25, 3:55 AM EDT	Special Weather Statement	PHI	Bucks, Delaware, Montgomery, Philadelphia	50 min
Jul 25, 4:19 AM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	41 min
Jul 25, 4:54 AM EDT	Severe Thunderstorm Warning	PHI	Delaware, Philadelphia	51 min
Jul 25, 3:15 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	45 min
Jul 25, 3:52 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	53 min
Jul 25, 4:00 PM EDT	Special Weather Statement	PHI	Lehigh	30 min
Jul 25, 4:34 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Northampton	56 min
Jul 25, 4:37 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	38 min
Jul 25, 5:15 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	45 min
Jul 25, 5:19 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh, Northampton	56 min
Jul 25, 5:57 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Northampton	48 min
Jul 25, 5:58 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	47 min
Jul 25, 6:39 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	40 min
Jul 25, 6:43 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	62 min
Jul 25, 6:55 PM EDT	Areal Flood Advisory	PHI	Bucks, Montgomery, Philadelphia	2 hr
Jul 25, 7:12 PM EDT	Special Weather Statement	PHI	Chester, Delaware, Philadelphia	63 min
Jul 25, 7:17 PM EDT	Flash Flood Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	4 hr
Jul 25, 4:46 AM EDT	Special Weather Statement	PHI	Burlington, Camden, Mercer	59 min
Jul 25, 5:27 AM EDT	Special Weather Statement	PHI	Burlington, Ocean	63 min
Jul 25, 6:17 AM EDT	Special Marine Warning	PHI		88 min
Jul 25, 7:11 AM EDT	Special Marine Warning	PHI		64 min
Jul 25, 7:59 AM EDT	Special Weather Statement	PHI	Ocean	61 min
Jul 25, 8:04 AM EDT	Special Marine Warning	PHI		56 min
Jul 25, 9:00 AM EDT	Special Marine Warning	PHI		60 min
Jul 25, 5:04 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	41 min
Jul 25, 5:39 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	46 min
Jul 25, 6:04 PM EDT	Special Marine Warning	PHI		56 min
Jul 25, 6:17 PM EDT	Flash Flood Warning	PHI	Mercer, Middlesex, Monmouth, Somerset	4 hr
Jul 25, 6:54 PM EDT	Special Marine Warning	PHI		66 min
Jul 25, 7:53 PM EDT	Special Weather Statement	PHI	Atlantic	37 min
Jul 25, 7:58 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	44 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2016 Severe Thunderstorm Warnings in New Jersey, 2016 Every severe thunderstorm warning in 2016

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.