Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 43, NWS Philadelphia/Mount Holly

June 22, 20124 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 22, 2012, 5:45 PM EDT for 4 counties in New Jersey. It was in force for 42 min. 1 report 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: Jun 22, 2012, 5:45 PM EDT (21:45 UTC)
Expired: Jun 22, 2012, 6:27 PM EDT
In force: 42 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 76 km from the middle of the area, began a volume at 21:47 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
Jun 22, 5:47 PM EDT	TSTM WND DMG	Piscataway, NJ	TREE WITH WIRES DOWN IN PISCATAWAY TWP

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
Jun 22, 1:41 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.8 hours before the alert went out and 118 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: 840 J/kg
Mixed-layer CIN: -103 J/kg
Mixed-layer LCL: 1512 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

804 
WUUS51 KPHI 222145
SVRPHI
NJC023-025-027-035-222245-
/O.NEW.KPHI.SV.W.0043.120622T2145Z-120622T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
545 PM EDT FRI JUN 22 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN MONMOUTH COUNTY IN CENTRAL NEW JERSEY...
  THIS INCLUDES THE CITY OF SANDY HOOK...
  NORTHERN MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITIES OF...PERTH AMBOY...NEW BRUNSWICK...
  SOUTHEASTERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF MORRISTOWN...
  SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF SOMERVILLE...

* UNTIL 645 PM EDT

* AT 543 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM PEQUANNOCK TOWNSHIP TO MANVILLE...OR ALONG A LINE EXTENDING
  FROM 6 MILES NORTHWEST OF PATERSON TO SOMERVILLE...AND MOVING EAST
  AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SOMERSET...SOCIETY HILL...NORTH BRUNSWICK...EAST BRUNSWICK...
  EDISON...COLONIA...SAYREVILLE...CARTERET...MATAWAN...KEANSBURG...
  MIDDLETOWN AND HIGHLANDS

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.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...HEAVY RAIN WILL OCCUR
WITH THESE STORMS AND CAUSE LOW-LYING AND POOR DRAINAGE FLOODING.

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 FRIDAY
EVENING FOR NEW JERSEY AND EASTERN PENNSYLVANIA.

&&

LAT...LON 4036 7396 4035 7397 4046 7470 4101 7434
      4100 7430 4091 7427 4090 7433 4086 7432
      4074 7436 4067 7445 4067 7440 4061 7443
      4060 7421 4056 7420 4054 7424 4047 7425
      4046 7412 4042 7401 4048 7402 4048 7400
TIME...MOT...LOC 2145Z 280DEG 28KT 4096 7423 4052 7452

$$

MPD

2 follow-up statements

217 
WWUS51 KPHI 222208
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
608 PM EDT FRI JUN 22 2012

NJC027-035-222217-
/O.CAN.KPHI.SV.W.0043.000000T0000Z-120622T2245Z/
MORRIS NJ-SOMERSET NJ-
608 PM EDT FRI JUN 22 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOMERSET AND SOUTHEASTERN
MORRIS COUNTIES IS CANCELLED...

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 FRIDAY
EVENING FOR NEW JERSEY AND SOUTHEAST PENNSYLVANIA. 

&&

LAT...LON 4036 7396 4035 7397 4042 7444 4061 7443
      4061 7432 4060 7421 4056 7420 4054 7424
      4047 7425 4045 7420 4046 7418 4046 7412
      4042 7401 4048 7402 4048 7400
TIME...MOT...LOC 2207Z 280DEG 28KT 4090 7406 4046 7435

$$

NJC023-025-222245-
/O.CON.KPHI.SV.W.0043.000000T0000Z-120622T2245Z/
MIDDLESEX NJ-MONMOUTH NJ-
608 PM EDT FRI JUN 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHEASTERN MONMOUTH AND NORTHEASTERN MIDDLESEX COUNTIES...

AT 604 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 24 MILES NORTH OF CARTERET TO SOUTH RIVER...OR ALONG A
LINE EXTENDING FROM PATERSON TO NEW BRUNSWICK...MOVING EAST AT 30
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SAYREVILLE...SEWAREN...PORT READING...PERTH AMBOY...MADISON PARK...
SOUTH AMBOY...LAURENCE HARBOR...MATAWAN...CLIFFWOOD BEACH...
STRATHMORE...KEYPORT...UNION BEACH...KEANSBURG...NORTH MIDDLETOWN...
MIDDLETOWN...PORT MONMOUTH...LEONARDO...FAIR HAVEN...ATLANTIC
HIGHLANDS...SANDY HOOK...RUMSON...HIGHLANDS AND SEA BRIGHT

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. 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.

IN ADDITION TO DAMAGING WINDS...HEAVY RAIN WILL OCCUR
WITH THESE STORMS AND CAUSE LOW-LYING AND POOR DRAINAGE FLOODING.

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 FRIDAY
EVENING FOR NEW JERSEY AND SOUTHEAST PENNSYLVANIA.

&&

LAT...LON 4036 7396 4035 7397 4042 7444 4061 7443
      4061 7432 4060 7421 4056 7420 4054 7424
      4047 7425 4045 7420 4046 7418 4046 7412
      4042 7401 4048 7402 4048 7400
TIME...MOT...LOC 2207Z 280DEG 28KT 4090 7406 4046 7435

$$

MPD

578 
WWUS51 KPHI 222227
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
627 PM EDT FRI JUN 22 2012

NJC023-025-222234-
/O.CAN.KPHI.SV.W.0043.000000T0000Z-120622T2245Z/
MIDDLESEX NJ-MONMOUTH NJ-
627 PM EDT FRI JUN 22 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONMOUTH AND
NORTHEASTERN MIDDLESEX COUNTIES IS CANCELLED...

THUNDERSTORMS HAD WEAKENED...BUT WERE STILL CAPABLE OF GENERATING 
DANGEROUS CLOUD-TO-GROUND LIGHTNING. IF YOU HEAR THUNDER...PLEASE 
MOVE INDOORS. 

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 FRIDAY
EVENING FOR NEW JERSEY AND SOUTHEAST PENNSYLVANIA.

LAT...LON 4036 7396 4035 7397 4042 7444 4061 7443
      4061 7432 4060 7421 4056 7420 4054 7424
      4047 7425 4045 7420 4046 7418 4046 7412
      4042 7401 4048 7402 4048 7400
TIME...MOT...LOC 2224Z 280DEG 28KT 4088 7389 4044 7418

$$

MPD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 10:12 AM EDT	Special Weather Statement	PHI	Ocean	33 min
Jun 22, 11:57 AM EDT	Special Weather Statement	PHI	Ocean	63 min
Jun 22, 12:15 PM EDT	Special Weather Statement	PHI	Ocean	60 min
Jun 22, 12:18 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	42 min
Jun 22, 12:21 PM EDT	Special Marine Warning	PHI		84 min
Jun 22, 12:23 PM EDT	Special Marine Warning	PHI		97 min
Jun 22, 12:44 PM EDT	Areal Flood Advisory	PHI	Ocean	2 hr
Jun 22, 12:53 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	52 min
Jun 22, 12:59 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	61 min
Jun 22, 1:10 PM EDT	Flash Flood Warning	PHI	Ocean	6 hr
Jun 22, 1:37 PM EDT	Special Weather Statement	PHI	Burlington	83 min
Jun 22, 1:42 PM EDT	Special Marine Warning	PHI		63 min
Jun 22, 1:46 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	59 min
Jun 22, 1:49 PM EDT	Special Weather Statement	PHI	Ocean	56 min
Jun 22, 1:59 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Monmouth, Ocean	73 min
Jun 22, 2:04 PM EDT	Special Marine Warning	PHI		56 min
Jun 22, 2:31 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Monmouth, Ocean	119 min
Jun 22, 2:34 PM EDT	Special Weather Statement	PHI	Atlantic	56 min
Jun 22, 2:39 PM EDT	Special Marine Warning	PHI		96 min
Jun 22, 2:42 PM EDT	Special Weather Statement	PHI	Burlington, Ocean	63 min
Jun 22, 2:46 PM EDT	Special Weather Statement	PHI	Monmouth	59 min
Jun 22, 2:51 PM EDT	Special Marine Warning	PHI		54 min
Jun 22, 3:16 PM EDT	Special Weather Statement	PHI	Atlantic, Burlington, Camden, Ocean	59 min
Jun 22, 3:28 PM EDT	Special Marine Warning	PHI		62 min
Jun 22, 3:40 PM EDT	Special Marine Warning	PHI		65 min
Jun 22, 3:43 PM EDT	Areal Flood Advisory	PHI	Atlantic	2 hr
Jun 22, 3:55 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	65 min
Jun 22, 4:00 PM EDT	Flash Flood Warning	PHI	Burlington	43 min
Jun 22, 4:05 PM EDT	Special Marine Warning	PHI		85 min
Jun 22, 4:09 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	66 min
Jun 22, 4:11 PM EDT	Severe Thunderstorm Warning	PHI	Cape May, Cumberland	44 min
Jun 22, 4:15 PM EDT	Special Weather Statement	PHI	Atlantic, Burlington, Ocean	60 min
Jun 22, 4:26 PM EDT	Special Marine Warning	PHI		94 min
Jun 22, 4:27 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Ocean	2 hr
Jun 22, 4:49 PM EDT	Special Weather Statement	PHI	Cape May	56 min
Jun 22, 5:00 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	45 min
Jun 22, 5:05 PM EDT	Special Weather Statement	PHI	Atlantic, Ocean	55 min
Jun 22, 5:16 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	59 min
Jun 22, 5:23 PM EDT	Special Marine Warning	PHI		97 min
Jun 22, 5:48 PM EDT	Special Weather Statement	PHI	Mercer	57 min
Jun 22, 5:54 PM EDT	Special Marine Warning	PHI		96 min
Jun 22, 6:13 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Gloucester, Mercer, Ocean, Salem	62 min
Jun 22, 6:16 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Gloucester, Mercer, Ocean, Salem	119 min
Jun 22, 7:02 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester	102 min
Jun 22, 7:04 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	56 min
Jun 22, 7:06 PM EDT	Severe Thunderstorm Warning	PHI	Salem	54 min
Jun 22, 7:30 PM EDT	Special Marine Warning	PHI		60 min
Jun 22, 7:42 PM EDT	Flash Flood Warning	PHI	Salem	93 min
Jun 22, 7:52 PM EDT	Flash Flood Warning	PHI	Burlington, Camden, Mercer, Monmouth	73 min
Jun 22, 7:57 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	69 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2012 Every 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.