Severe Thunderstorm Warning 97, NWS Philadelphia/Mount Holly

Issued

Jun 9, 2011, 7:42 PM EDT (23:42 UTC)

Expired

Jun 9, 2011, 8:15 PM EDT

In force

33 min

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Somerset County, NJ, Bucks County, PA, Chester County, PA, Montgomery County, PA, Philadelphia County, PA

The Philadelphia radar (KDIX), 55 km from the middle of the area, began a volume at 23:44 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.

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

419 
WUUS51 KPHI 092342
SVRPHI
NJC019-021-023-027-035-PAC017-029-091-101-100015-
/O.NEW.KPHI.SV.W.0097.110609T2342Z-110610T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
742 PM EDT THU JUN 9 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MERCER COUNTY IN CENTRAL NEW JERSEY...
  THIS INCLUDES THE CITY OF TRENTON...
  WESTERN MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF NEW BRUNSWICK...
  EXTREME SOUTH CENTRAL MORRIS COUNTY IN NORTHERN NEW JERSEY...
  SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF SOMERVILLE...
  SOUTHERN HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...
  BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
  EXTREME NORTHEASTERN CHESTER COUNTY IN SOUTHEAST PENNSYLVANIA...
  EASTERN MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA...
  NORTHERN PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA...

* UNTIL 815 PM EDT

* AT 740 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM MIDDLESEX TO 26 MILES SOUTHWEST
  OF KING OF PRUSSIA...OR ALONG A LINE EXTENDING FROM 8 MILES
  NORTHEAST OF SOMERVILLE TO 11 MILES NORTH OF NEWARK...AND MOVING
  SOUTHEAST AT 30 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CHESTNUT HILL...ABINGTON...WILLOW GROVE AND RICHBORO AROUND 750 PM
  EDT...
  YARDLEY...WOODSIDE...JENKINTOWN AND FEASTERVILLE AROUND 755 PM
  EDT...
  LAWRENCEVILLE AND SOUTH BRUNSWICK AROUND 800 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT 
THURSDAY EVENING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.

&&

LAT...LON 4029 7454 4028 7448 4003 7527 4014 7529
      4007 7543 4027 7549 4074 7450 4043 7437
TIME...MOT...LOC 2342Z 308DEG 27KT 4061 7446 3983 7574

$$

968 
WWUS51 KPHI 100000
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
800 PM EDT THU JUN 9 2011

NJC027-100010-
/O.CAN.KPHI.SV.W.0097.000000T0000Z-110610T0015Z/
MORRIS NJ-
800 PM EDT THU JUN 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME SOUTH CENTRAL MORRIS
COUNTY IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.

LAT...LON 4023 7546 4056 7443 4043 7437 4029 7454
      4028 7448 4003 7527 4014 7529 4007 7543
TIME...MOT...LOC 0000Z 308DEG 27KT 4052 7432 3975 7560

$$

NJC019-021-023-035-PAC017-029-091-101-100015-
/O.CON.KPHI.SV.W.0097.000000T0000Z-110610T0015Z/
HUNTERDON NJ-SOMERSET NJ-MERCER NJ-MIDDLESEX NJ-PHILADELPHIA PA-
CHESTER PA-MONTGOMERY PA-BUCKS PA-
800 PM EDT THU JUN 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR SOUTHERN BUCKS...SOUTHEASTERN MONTGOMERY...EXTREME NORTHEASTERN
CHESTER...NORTHERN PHILADELPHIA...WESTERN MIDDLESEX...MERCER...
SOUTHERN SOMERSET AND SOUTHEASTERN HUNTERDON COUNTIES...

AT 757 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM HIGHLAND PARK TO 26 MILES
SOUTHWEST OF KING OF PRUSSIA...OR ALONG A LINE EXTENDING FROM PERTH
AMBOY TO WILMINGTON...MOVING SOUTHEAST AT 30 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  MORRISVILLE...FAIRLESS HILLS...TRENTON AND SOUTH RIVER BY 805 PM
  EDT...
  EDINBURG AND MERCERVILLE-HAMILTON SQUARE BY 810 PM EDT...
  HIGHTSTOWN BY 815 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.

&&

LAT...LON 4023 7546 4056 7443 4043 7437 4029 7454
      4028 7448 4003 7527 4014 7529 4007 7543
TIME...MOT...LOC 0000Z 308DEG 27KT 4052 7432 3975 7560

$$

Severe Thunderstorm Warnings in New Jersey, 2011Severe Thunderstorm Warnings in Pennsylvania, 2011Every severe thunderstorm warning in 2011

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.