Alert archive / New Jersey / Tornado Warnings in 2015

Tornado Warning 1, NWS Philadelphia/Mount Holly

May 16, 2015Morris County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this tornado warning at May 16, 2015, 7:15 PM EDT for Morris County, Somerset County, New Jersey. It was in force for 11 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 16, 2015, 7:15 PM EDT (23:15 UTC)
Expired: May 16, 2015, 7:26 PM EDT
In force: 11 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Morris County, NJ, Somerset County, NJ

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.3 hours before the alert went out and 128 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 903 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 170 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.

968 
WFUS51 KPHI 162315
TORPHI
NJC027-035-162345-
/O.NEW.KPHI.TO.W.0001.150516T2315Z-150516T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
715 PM EDT SAT MAY 16 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
  NORTHEASTERN SOMERSET COUNTY IN NORTHERN NEW JERSEY...

* UNTIL 745 PM EDT
    
* AT 714 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  NEAR BASKING RIDGE...OR NEAR MORRISTOWN...AND MOVING SOUTHEAST AT
  25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MORRISTOWN...
  MADISON...
  FLORHAM PARK...
  EAST HANOVER...
  CHATHAM...
  MORRIS PLAINS...
  MENDHAM...
  MOUNTAIN LAKES...
  MILLINGTON...
  PARSIPPANY...
  BASKING RIDGE...
  BERNARDSVILLE...
  AND HANOVER TOWNSHIP. 

LAT...LON 4090 7429 4089 7434 4086 7432 4082 7434
      4079 7437 4076 7437 4075 7436 4068 7445
      4067 7445 4066 7443 4065 7459 4083 7463
      4092 7427 4090 7427
TIME...MOT...LOC 2314Z 310DEG 21KT 4073 7450 

$$

ROBERTSON

1 follow-up statement

785 
WWUS51 KPHI 162326
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
726 PM EDT SAT MAY 16 2015

NJC027-035-162335-
/O.CAN.KPHI.TO.W.0001.000000T0000Z-150516T2345Z/
MORRIS NJ-SOMERSET NJ-
726 PM EDT SAT MAY 16 2015

...THE TORNADO WARNING FOR SOUTHEASTERN MORRIS AND NORTHEASTERN
SOMERSET COUNTIES IS CANCELLED...
    
THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
BEEN CANCELLED. HOWEVER...LARGE HAIL AND DAMAGING WINDS REMAIN LIKELY
AND A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA.

LAT...LON 4090 7429 4089 7434 4086 7432 4082 7434
      4079 7437 4076 7437 4075 7436 4068 7445
      4067 7445 4066 7443 4065 7459 4083 7463
      4092 7427 4090 7427
TIME...MOT...LOC 2324Z 310DEG 21KT 4069 7443 

$$

ROBERTSON

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 5:26 PM EDT	Severe Thunderstorm Warning	PHI	Sussex, Warren	49 min
May 16, 6:03 PM EDT	Areal Flood Advisory	PHI	Morris, Sussex, Warren	3 hr
May 16, 6:10 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	50 min
May 16, 6:53 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset	37 min
May 16, 6:55 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Sussex, Warren	3 hr
May 16, 7:04 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Warren	26 min
May 16, 7:28 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Morris, Somerset	28 min
May 16, 7:34 PM EDT	Special Weather Statement	PHI	Hunterdon	41 min
May 16, 7:37 PM EDT	Special Weather Statement	PHI	Sussex	23 min
May 16, 7:57 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Middlesex, Monmouth, Morris, Somerset, Sussex	3 hr

Nearby

Tornado Warnings in New Jersey, 2015 Every tornado warning in 2015 Tornadoes in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.