Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 192, NWS Philadelphia/Mount Holly

October 30, 20165 counties in Pennsylvania; 5 counties in New Jersey; New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Oct 30, 2016, 5:48 PM EDT for 5 counties in Pennsylvania; 5 counties in New Jersey; New Castle County, Delaware. It was in force for 42 min. 7 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
Oct 30, 2016, 5:48 PM EDT (21:48 UTC)
Expired
Oct 30, 2016, 6:30 PM EDT
In force
42 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Mercer County, NJ, Salem County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 81 km from the middle of the area, began a volume at 21:49 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
Oct 30, 6:00 PM EDTTSTM WND DMGAbington Twp, PATREES AND WIRES DOWN.
Oct 30, 6:00 PM EDTTSTM WND DMGCheltenham Twp, PATREES AND WIRES DOWN.
Oct 30, 6:00 PM EDTTSTM WND DMGJenkintown, PATREES AND WIRES DOWN.
Oct 30, 6:12 PM EDTTSTM WND GST 48Philadelphia Intl Airpo, PA
Oct 30, 6:13 PM EDTTSTM WND GST 54Pennsauken, NJTIME EST FM TPHL
Oct 30, 6:15 PM EDTTSTM WND GST 542 Se Wissinoming, NJ
Oct 30, 6:17 PM EDTTSTM WND GST 51Moorestown, NJ

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

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 9.8 hours before the alert went out and 209 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, Washington/Dulle, VA at 12:00Z on 2016-10-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Washington/Dulle, VA at 12:00Z on 2016-10-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1691 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
142 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

375 
WUUS51 KPHI 302148
SVRPHI
DEC003-NJC005-007-015-021-033-PAC017-029-045-091-101-302230-
/O.NEW.KPHI.SV.W.0192.161030T2148Z-161030T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
548 PM EDT SUN OCT 30 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
  NORTHWESTERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
  NORTHWESTERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
  WEST CENTRAL MERCER COUNTY IN CENTRAL NEW JERSEY...
  NORTH CENTRAL SALEM COUNTY IN SOUTHERN NEW JERSEY...
  NORTHWESTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  EASTERN CHESTER COUNTY IN SOUTHEASTERN PENNSYLVANIA...
  SOUTHEASTERN BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA...
  DELAWARE COUNTY IN SOUTHEASTERN PENNSYLVANIA...
  SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHEASTERN PENNSYLVANIA...
  PHILADELPHIA COUNTY IN SOUTHEASTERN PENNSYLVANIA...

* UNTIL 630 PM EDT

* AT 547 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM COLLEGEVILLE TO WEST CHESTER TO KENNETT SQUARE...
  MOVING EAST AT 40 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  WEST NORRITON...COLLEGEVILLE...TRAPPE...CHEYNEY AND VALLEY FORGE 
  AROUND 550 PM EDT. 
  NORRISTOWN...LANSDALE...EAST NORRITON...CONSHOHOCKEN...GRADYVILLE...
  LIMA...KING OF PRUSSIA AND PAOLI AROUND 555 PM EDT. 
  NEWTOWN SQUARE...BROOMALL...PLYMOUTH MEETING AND CONCORDVILLE AROUND 
  600 PM EDT. 
  WILMINGTON...AMBLER...SWARTHMORE...PENNS GROVE...ARDEN...NETHER 
  PROVIDENCE TOWNSHIP...TROUT LAKE...CHELSEA...BRYN MAWR AND RADNOR 
  TOWNSHIP AROUND 605 PM EDT. 
  YEADON...HATBORO...FOLCROFT...JENKINTOWN...NARBERTH...EAST
  LANSDOWNE... ABINGTON...WILLOW GROVE...DREXEL HILL AND MORRIS PARK
  AROUND 610 PM EDT. 
  CHESTER...NATIONAL PARK...ROCKLEDGE...BRYN ATHYN...IVYLAND...
  SOUTH PHILADELPHIA...BECKETT...ROXBOROUGH AND GERMANTOWN 
  AROUND 615 PM EDT.
  PHILADELPHIA...WESTVILLE...SWEDESBORO...BROOKLAWN...FEASTERVILLE-
  TREVOSE...FEASTERVILLE...BEN FRANKLIN BRIDGE...GIBBSTOWN...CENTER
  CITY AND KENSINGTON AROUND 620 PM EDT. 
  CAMDEN...GLOUCESTER CITY...BENSALEM...WEST DEPTFORD...BELLMAWR...
  PAULSBORO...BEVERLY...NEWTOWN...LANGHORNE AND AUDUBON PARK AROUND
  625 PM EDT. 

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
ORELAND...MARCUS HOOK...LAWNSIDE...BARRINGTON...WOODLYN...BOOTHWYN...
TRAINER...SPRINGFIELD...WEST CONSHOHOCKEN AND EDGEWATER PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN MOUNT HOLLY NJ .

&&

LAT...LON 3997 7564 4025 7546 4025 7474 3992 7494
      3970 7524 3978 7586
TIME...MOT...LOC 2147Z 274DEG 36KT 4019 7543 3997 7557 3983 7572 

HAIL...<.75IN
WIND...60MPH
 
$$

MPS
2 follow-up statements
968 
WWUS51 KPHI 302206
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
606 PM EDT SUN OCT 30 2016

NJC021-PAC029-302215-
/O.CAN.KPHI.SV.W.0192.000000T0000Z-161030T2230Z/
MERCER NJ-CHESTER PA-
606 PM EDT SUN OCT 30 2016

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL MERCER AND
EASTERN CHESTER COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF
THE WARNED AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED.

LAT...LON 3984 7560 4025 7515 4020 7477 3992 7494
      3970 7524 3977 7569
TIME...MOT...LOC 2205Z 283DEG 41KT 4014 7511 3994 7527 3977 7552 

$$

DEC003-NJC005-007-015-033-PAC017-045-091-101-302230-
/O.CON.KPHI.SV.W.0192.000000T0000Z-161030T2230Z/
NEW CASTLE DE-CAMDEN NJ-GLOUCESTER NJ-SALEM NJ-BURLINGTON NJ-
BUCKS PA-DELAWARE PA-MONTGOMERY PA-PHILADELPHIA PA-
606 PM EDT SUN OCT 30 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHEASTERN NEW CASTLE...NORTHWESTERN CAMDEN...NORTHWESTERN
GLOUCESTER...NORTH CENTRAL SALEM...NORTHWESTERN BURLINGTON...
SOUTHEASTERN BUCKS...DELAWARE...SOUTHEASTERN MONTGOMERY AND
PHILADELPHIA COUNTIES...

AT 605 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WILLOW GROVE TO EAST LANSDOWNE TO NEAR WILMINGTON...
MOVING EAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

THESE SEVERE STORMS WILL BE NEAR...
  PHILADELPHIA...WEST DEPTFORD...HATBORO...PAULSBORO...JENKINTOWN...
  NATIONAL PARK...ROCKLEDGE...ABINGTON...BRYN ATHYN AND IVYLAND 
  AROUND 610 PM EDT. 
  CAMDEN...GLOUCESTER CITY...BENSALEM...DEPTFORD...BELLMAWR...
  WOODBURY...RIVERSIDE...WESTVILLE...WOODBURY HEIGHTS AND BROOKLAWN 
  AROUND 615 PM EDT. 
  WILLINGBORO...PALMYRA...MAGNOLIA...BEVERLY...AUDUBON PARK...GOLDEN 
  TRIANGLE...CHERRY HILL MALL...LEVITTOWN AND GIBBSTOWN AROUND 620 PM 
  EDT. 
  CHERRY HILL...BURLINGTON...BRISTOL...TULLYTOWN...SPRINGDALE...
  ASHLAND...GREENTREE...MULLICA HILL...BARCLAY-KINGSTON AND 
  FLORENCE-ROEBLING AROUND 625 PM EDT. 
  MARLTON AROUND 630 PM EDT. 

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
ORELAND...MARCUS HOOK...LAWNSIDE...BARRINGTON...WOODLYN...BOOTHWYN...
TRAINER...SPRINGFIELD...WEST CONSHOHOCKEN AND EDGEWATER PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
MOUNT HOLLY NJ .

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 3984 7560 4025 7515 4020 7477 3992 7494
      3970 7524 3977 7569
TIME...MOT...LOC 2205Z 283DEG 41KT 4014 7511 3994 7527 3977 7552 

HAIL...<.75IN
WIND...60MPH
 
$$

MPS
443 
WWUS51 KPHI 302224
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
624 PM EDT SUN OCT 30 2016

DEC003-NJC005-007-015-033-PAC017-045-091-101-302233-
/O.EXP.KPHI.SV.W.0192.000000T0000Z-161030T2230Z/
NEW CASTLE DE-CAMDEN NJ-GLOUCESTER NJ-SALEM NJ-BURLINGTON NJ-
BUCKS PA-DELAWARE PA-MONTGOMERY PA-PHILADELPHIA PA-
624 PM EDT SUN OCT 30 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN NEW CASTLE...
NORTHWESTERN CAMDEN...NORTHWESTERN GLOUCESTER...NORTH CENTRAL
SALEM...NORTHWESTERN BURLINGTON...SOUTHEASTERN BUCKS...DELAWARE...
SOUTHEASTERN MONTGOMERY AND PHILADELPHIA COUNTIES WILL EXPIRE AT 630
PM EDT...
            
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY WINDS
AND HEAVY RAIN ARE STILL POSSIBLE WITH THESE THUNDERSTORMS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
MOUNT HOLLY NJ .

LAT...LON 3984 7560 4025 7515 4020 7477 3992 7494
      3970 7524 3977 7569
TIME...MOT...LOC 2223Z 274DEG 36KT 4014 7511 3994 7527 3977 7552 

$$

MPS

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 30, 2:23 PM EDTSpecial Weather StatementPHICarbon, Monroe22 min
Oct 30, 4:11 PM EDTSpecial Weather StatementPHIBucks19 min
Oct 30, 5:01 PM EDTSpecial Weather StatementPHIChester44 min
Oct 30, 5:20 PM EDTSevere Thunderstorm WarningPHIBerks, Chester25 min
Oct 30, 5:27 PM EDTSpecial Weather StatementPHIPhiladelphia48 min
Oct 30, 4:04 AM EDTSmall Craft AdvisoryPHI34 hr
Oct 30, 2:18 PM EDTSpecial Weather StatementPHISussex42 min
Oct 30, 3:55 PM EDTSpecial Weather StatementPHIMorris35 min
Oct 30, 4:29 PM EDTSpecial Weather StatementPHIHunterdon31 min
Oct 30, 4:57 PM EDTSpecial Weather StatementPHIMiddlesex33 min
Oct 30, 5:54 PM EDTSpecial Weather StatementPHISalem51 min
Oct 30, 5:57 PM EDTSpecial Marine WarningPHI63 min
Oct 30, 6:29 PM EDTSpecial Weather StatementPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Monmouth and 2 more46 min
Oct 30, 7:10 PM EDTSpecial Marine WarningPHI35 min
Oct 30, 7:13 PM EDTSpecial Weather StatementPHIOcean17 min
Oct 30, 7:25 PM EDTSpecial Marine WarningPHI35 min
Oct 30, 7:51 PM EDTSpecial Marine WarningPHI24 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2016Severe Thunderstorm Warnings in New Jersey, 2016Severe Thunderstorm Warnings in Delaware, 2016Every 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.