Severe Thunderstorm Warning 55, NWS Philadelphia/Mount Holly

Issued

May 19, 2011, 5:08 PM EDT (21:08 UTC)

Expired

May 19, 2011, 5:58 PM EDT

In force

50 min

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Monroe County, PA, Northampton County, PA

The Philadelphia radar (KDIX), 103 km from the middle of the area, began a volume at 21:12 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.

932 
WUUS51 KPHI 192108
SVRPHI
NJC019-027-035-037-041-PAC089-095-192215-
/O.NEW.KPHI.SV.W.0055.110519T2108Z-110519T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
508 PM EDT THU MAY 19 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  THIS INCLUDES THE CITY OF EASTON...
  EAST CENTRAL MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
  SOUTHWESTERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
  NORTHWESTERN SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  NORTHEASTERN HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...
  SOUTHWESTERN SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  WARREN COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 615 PM EDT

* AT 503 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 ALPHA TO GLEN GARDNER TO
  CLOVERHILL...OR ALONG A LINE EXTENDING FROM EASTON TO 14 MILES EAST
  OF EASTON TO 14 MILES SOUTHWEST OF SOMERVILLE...AND MOVING NORTH AT
  20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CLOVERHILL AND GLEN GARDNER AROUND 515 PM EDT...
  TATAMY...PLEASANT VALLEY...HARMONY AND WASHINGTON AROUND 520 PM
  EDT...
  ROXBURG AROUND 525 PM EDT...
  OXFORD AND LEBANON AROUND 535 PM EDT...
  BELVIDERE AROUND 540 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 800 PM EDT
THURSDAY EVENING FOR NEW JERSEY AND EASTERN PENNSYLVANIA.

&&

LAT...LON 4110 7505 4109 7504 4108 7487 4079 7461
      4041 7475 4042 7475 4041 7481 4058 7497
      4060 7520 4062 7520 4061 7525 4113 7528
TIME...MOT...LOC 2108Z 180DEG 16KT 4070 7518 4070 7496
          4045 7479

$$

ROBERTSON

490 
WWUS51 KPHI 192135
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
535 PM EDT THU MAY 19 2011

NJC019-027-035-037-041-PAC089-095-192215-
/O.CON.KPHI.SV.W.0055.000000T0000Z-110519T2215Z/
SUSSEX NJ-WARREN NJ-MORRIS NJ-HUNTERDON NJ-SOMERSET NJ-NORTHAMPTON 
PA-MONROE PA-
535 PM EDT THU MAY 19 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR EAST CENTRAL MONROE...NORTHEASTERN NORTHAMPTON...NORTHWESTERN
SOMERSET...NORTHEASTERN HUNTERDON...SOUTHWESTERN MORRIS...WARREN AND
SOUTHWESTERN SUSSEX COUNTIES...

AT 531 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 PEN ARGYL TO HOPE TO WHITE
HOUSE STATION...OR ALONG A LINE EXTENDING FROM 10 MILES NORTH OF
EASTON TO 17 MILES SOUTHWEST OF NEWTON TO 8 MILES WEST OF
SOMERVILLE...MOVING NORTH AT 25 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  HOPE...ROSETO AND EAST BANGOR BY 540 PM EDT...
  COLUMBIA...PORTLAND...GREAT MEADOWS AND GREAT MEADOWS-VIENNA BY 545
  PM EDT...
  STORMVILLE AND BLAIRSTOWN BY 550 PM EDT...
  STROUDSBURG BY 555 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4076 7498 4077 7526 4113 7528 4110 7505
      4109 7504 4108 7487 4079 7461 4046 7473
      4059 7485 4074 7495 4074 7497
TIME...MOT...LOC 2135Z 183DEG 21KT 4086 7525 4089 7495
          4061 7477

$$

ROBERTSON

037 
WWUS51 KPHI 192158
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
558 PM EDT THU MAY 19 2011

NJC019-027-035-037-041-PAC089-095-192208-
/O.CAN.KPHI.SV.W.0055.000000T0000Z-110519T2215Z/
SUSSEX NJ-WARREN NJ-MORRIS NJ-HUNTERDON NJ-SOMERSET NJ-NORTHAMPTON PA-
MONROE PA-
558 PM EDT THU MAY 19 2011

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MONROE...
NORTHEASTERN NORTHAMPTON...NORTHWESTERN SOMERSET...NORTHEASTERN
HUNTERDON...SOUTHWESTERN MORRIS...WARREN AND SOUTHWESTERN SUSSEX
COUNTIES IS CANCELLED...

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

LAT...LON 4076 7498 4077 7526 4113 7528 4110 7505
      4109 7504 4108 7487 4079 7461 4046 7473
      4059 7485 4074 7495 4074 7497
TIME...MOT...LOC 2158Z 183DEG 21KT 4099 7524 4102 7494
          4074 7476

$$

IOVINO

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.