Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 167, NWS Philadelphia/Mount Holly

August 5, 2012Monroe County, Northampton County, Pennsylvania; Morris County, Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 5, 2012, 5:13 PM EDT for Monroe County, Northampton County, Pennsylvania; Morris County, Sussex County, Warren County, New Jersey. It was in force for 77 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
Aug 5, 2012, 5:13 PM EDT (21:13 UTC)
Expired
Aug 5, 2012, 6:30 PM EDT
In force
77 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

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

The radar

The Philadelphia radar (KDIX), 128 km from the middle of the area, began a volume at 21:13 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
Aug 5, 5:55 PM EDTTSTM WND DMGAndover, NJTREES DOWN IN ANDOVER.
Aug 5, 6:15 PM EDTTSTM WND DMGVernon, NJTREE DOWN ONTO WIRES IN VERNON.

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.

IssuedProductOfficeLasted
Aug 5, 3:36 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.2 hours before the alert went out and 163 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, Brookhaven, NY at 12:00Z on 2012-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2201 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2012-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.1939Sfc1 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
2201 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
477 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

827 
WUUS51 KPHI 052113
SVRPHI
NJC027-037-041-PAC089-095-052230-
/O.NEW.KPHI.SV.W.0167.120805T2113Z-120805T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
513 PM EDT SUN AUG 5 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  EASTERN MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
  WESTERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
  SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  THIS INCLUDES THE CITIES OF...MONTAGUE...NEWTON...
  WARREN COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 630 PM EDT

* AT 509 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 NEAR SCOTRUN TO BRODHEADSVILLE
  IN PENNSYLVANIA...AND MOVING EAST AT 30 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  STORMVILLE...ANALOMINK AND WIND GAP AROUND 520 PM EDT...
  PEN ARGYL...EAST STROUDSBURG AND BELFAST AROUND 525 PM EDT...
  EAST BANGOR AND BANGOR AROUND 530 PM EDT...
  WERRY LAKE AROUND 535 PM EDT...
  COLUMBIA AROUND 540 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SUNDAY
EVENING FOR PARTS OF NEW JERSEY AND EASTERN PENNSYLVANIA.

&&

LAT...LON 4121 7437 4109 7450 4104 7450 4105 7445
      4104 7443 4076 7455 4072 7473 4079 7489
      4074 7494 4080 7537 4126 7519 4125 7512
      4115 7514 4115 7508 4109 7503 4116 7491
      4132 7480 4136 7471
TIME...MOT...LOC 2112Z 276DEG 27KT 4122 7524 4080 7540

$$

IOVINO
1 follow-up statement
915 
WWUS51 KPHI 052154
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
554 PM EDT SUN AUG 5 2012

PAC089-052202-
/O.CAN.KPHI.SV.W.0167.000000T0000Z-120805T2230Z/
MONROE PA-
554 PM EDT SUN AUG 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MONROE COUNTY IS
CANCELLED...

THE SEVERE THUNDERSTORMS HAVE MOVED TO THE EAST OF MONROE COUNTY.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SUNDAY
EVENING FOR EASTERN PENNSYLVANIA.

LAT...LON 4121 7437 4109 7450 4104 7450 4105 7444
      4103 7443 4076 7455 4072 7473 4079 7488
      4074 7495 4080 7537 4085 7534 4087 7528
      4093 7521 4095 7514 4099 7513 4108 7497
      4109 7499 4132 7480 4134 7475 4135 7469
TIME...MOT...LOC 2152Z 276DEG 27KT 4119 7484 4077 7501

$$

NJC027-037-041-PAC095-052230-
/O.CON.KPHI.SV.W.0167.000000T0000Z-120805T2230Z/
WARREN NJ-MORRIS NJ-SUSSEX NJ-NORTHAMPTON PA-
554 PM EDT SUN AUG 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHEASTERN NORTHAMPTON...SUSSEX...WESTERN MORRIS AND WARREN
COUNTIES...

AT 551 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 WESTERN SUSSEX COUNTY TO 
NORTHERN WARREN COUNTY AND NORTHEASTERN NORTHAMPTON COUNTY...MOVING 
EAST AT 30 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  GREAT MEADOWS AND GREAT MEADOWS-VIENNA BY 600 PM EDT...
  NEWTON...HACKETTSTOWN...BRANCHVILLE AND BEATTYESTOWN BY 605 PM
  EDT...
  ANDOVER BY 610 PM EDT...
  SUSSEX...STANHOPE AND NETCONG BY 615 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.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SUNDAY
EVENING FOR PARTS OF NEW JERSEY AND EASTERN PENNSYLVANIA.

&&

LAT...LON 4121 7437 4109 7450 4104 7450 4105 7444
      4103 7443 4076 7455 4072 7473 4079 7488
      4074 7495 4080 7537 4085 7534 4087 7528
      4093 7521 4095 7514 4099 7513 4108 7497
      4109 7499 4132 7480 4134 7475 4135 7469
TIME...MOT...LOC 2152Z 276DEG 27KT 4119 7484 4077 7501

$$

IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 3:49 AM EDTFlash Flood WatchPHICarbon, Monroe, Northampton16 hr
Aug 5, 12:15 PM EDTSpecial Weather StatementPHICarbon, Monroe45 min
Aug 5, 12:29 PM EDTSpecial Weather StatementPHINorthampton31 min
Aug 5, 1:03 PM EDTSpecial Weather StatementPHIMonroe27 min
Aug 5, 4:12 PM EDTSevere Thunderstorm WarningPHIBerks, Carbon, Lehigh, Monroe, Northampton78 min
Aug 5, 4:23 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Montgomery67 min
Aug 5, 5:22 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more68 min
Aug 5, 6:16 PM EDTSevere Thunderstorm WarningPHIBucks, Delaware, Montgomery, Philadelphia74 min
Aug 5, 1:00 PM EDTSpecial Weather StatementPHIWarren30 min
Aug 5, 1:20 PM EDTSpecial Weather StatementPHISussex85 min
Aug 5, 5:38 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem82 min
Aug 5, 5:52 PM EDTSpecial Marine WarningPHI83 min
Aug 5, 6:21 PM EDTSevere Thunderstorm WarningPHICumberland, Salem39 min
Aug 5, 7:09 PM EDTSpecial Weather StatementPHIAtlantic, Cumberland66 min
Aug 5, 7:30 PM EDTSpecial Weather StatementPHIAtlantic, Cumberland, Monmouth, Ocean60 min
Aug 5, 7:38 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth, Ocean67 min
Aug 5, 7:40 PM EDTSpecial Marine WarningPHI95 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2012Severe Thunderstorm Warnings in Pennsylvania, 2012Every severe thunderstorm warning in 2012

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.