Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 193, NWS Philadelphia/Mount Holly

August 15, 2012Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 15, 2012, 2:53 PM EDT for Monmouth County, New Jersey. It was in force for 52 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 15, 2012, 2:53 PM EDT (18:53 UTC)
Expired: Aug 15, 2012, 3:45 PM EDT
In force: 52 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Monmouth County, NJ

What was reported inside it

Time	Report	Where	Remark
Aug 15, 2:53 PM EDT	HAIL 1	Middletown, NJ	QUARTER SIZE HAIL REPORTED IN MIDDLETOWN.
Aug 15, 2:55 PM EDT	HAIL 0.88	Atlantic Highlands, NJ	NICKEL SIZE HAIL REPORTED IN ATLANTIC HIGHLANDS.

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 6.9 hours before the alert went out and 112 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: 1897 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 686 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

764 
WUUS51 KPHI 151853
SVRPHI
NJC025-151945-
/O.NEW.KPHI.SV.W.0193.120815T1853Z-120815T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
253 PM EDT WED AUG 15 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 LONG BRANCH...

* UNTIL 345 PM EDT

* AT 251 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  RED BANK...OR 6 MILES NORTHWEST OF LONG BRANCH...AND MOVING
  NORTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HIGHLANDS AROUND 315 PM EDT...
  SANDY HOOK AROUND 320 PM EDT...

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.

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.

&&

LAT...LON 4029 7397 4025 7408 4034 7417 4042 7419
      4046 7412 4043 7406 4042 7401 4044 7400
      4048 7402 4048 7400 4047 7398 4041 7396
TIME...MOT...LOC 1853Z 241DEG 10KT 4037 7405

$$

MPD

1 follow-up statement

939 
WWUS51 KPHI 151913
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
313 PM EDT WED AUG 15 2012

NJC025-151945-
/O.CON.KPHI.SV.W.0193.000000T0000Z-120815T1945Z/
MONMOUTH NJ-
313 PM EDT WED AUG 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR NORTHEASTERN MONMOUTH COUNTY...

AT 310 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR ATLANTIC HIGHLANDS...OR 7 MILES NORTH OF LONG BRANCH...
MOVING NORTHEAST AT 10 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  SANDY HOOK BY 320 PM EDT...

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.

THIS STORM HAS A HISTORY OF PRODUCING QUARTER SIZED HAIL. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY 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.

&&

LAT...LON 4034 7397 4034 7402 4041 7411 4046 7412
      4045 7411 4043 7406 4042 7401 4044 7400
      4048 7402 4048 7400 4047 7398 4041 7396
TIME...MOT...LOC 1913Z 241DEG 10KT 4040 7400

$$

MPD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 15, 1:57 AM EDT	Special Weather Statement	PHI	Hunterdon, Somerset	63 min
Aug 15, 2:00 AM EDT	Special Weather Statement	PHI	Warren	90 min
Aug 15, 2:13 AM EDT	Special Weather Statement	PHI	Sussex	62 min
Aug 15, 3:10 AM EDT	Areal Flood Advisory	PHI	Sussex	111 min
Aug 15, 3:22 AM EDT	Special Weather Statement	PHI	Sussex	53 min
Aug 15, 2:38 PM EDT	Special Weather Statement	PHI	Monmouth	52 min
Aug 15, 2:58 PM EDT	Special Weather Statement	PHI	Atlantic	62 min
Aug 15, 3:17 PM EDT	Special Marine Warning	PHI		43 min
Aug 15, 3:23 PM EDT	Special Weather Statement	PHI	Sussex	52 min
Aug 15, 3:25 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	65 min
Aug 15, 4:14 PM EDT	Areal Flood Warning	PHI	Monmouth	3 hr
Aug 15, 4:24 PM EDT	Special Weather Statement	PHI	Atlantic	66 min
Aug 15, 4:33 PM EDT	Special Weather Statement	PHI	Morris, Sussex, Warren	87 min
Aug 15, 4:45 PM EDT	Special Weather Statement	PHI	Ocean	90 min
Aug 15, 5:22 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth	38 min
Aug 15, 5:28 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	34 min
Aug 15, 5:48 PM EDT	Special Weather Statement	PHI	Middlesex	57 min
Aug 15, 5:58 PM EDT	Special Weather Statement	PHI	Mercer	62 min
Aug 15, 6:06 PM EDT	Special Weather Statement	PHI	Monmouth	84 min
Aug 15, 6:19 PM EDT	Areal Flood Warning	PHI	Mercer, Middlesex, Monmouth, Ocean	118 min
Aug 15, 6:50 PM EDT	Areal Flood Warning	PHI	Morris	87 min
Aug 15, 6:58 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cumberland, Gloucester	62 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.