Alert archive / New Jersey / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 7, NWS New York, NY

April 19, 2002Essex County, Passaic County, New Jersey

NWS New York, NY issued this severe thunderstorm warning at Apr 19, 2002, 5:07 PM EDT for Essex County, Passaic County, New Jersey. It was in force for 38 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 19, 2002, 5:07 PM EDT (21:07 UTC)
Expired: Apr 19, 2002, 5:45 PM EDT
In force: 38 min
Issued by: NWS New York, NY
Area: Whole counties

Counties Essex County, NJ, Passaic County, NJ

What was reported inside it

Time	Report	Where
Apr 19, 5:24 PM EDT	Hail 0.75	Wayne, NJ
Apr 19, 5:45 PM EDT	Hail 0.75	West Caldwell, NJ
Apr 19, 5:45 PM EDT	Thunderstorm Wind 66 M	Fairfield, NJ

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.1 hours before the alert went out and 119 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: 19 J/kg
Mixed-layer CIN: -368 J/kg
Mixed-layer LCL: 1055 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 77 m²/s²
0-3 km storm-relative helicity: 102 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.

000 
WUUS51 KOKX 192107
SVROKX
NJC013-031-192145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
506 PM EDT FRI APR 19 2002

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ESSEX COUNTY IN NORTHEAST NEW JERSEY
  SOUTHEASTERN PASSAIC COUNTY IN NORTHEAST NEW JERSEY

* UNTIL 545 PM EDT.

* AT 456 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES WEST OF POMPTON LAKES...MOVING
  SOUTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE IN THE VICINITY OF...
  WAYNE AROUND 520 PM.
  FAIRFIELD AROUND 525 PM.
  HAWTHORNE AND 5 MILES NORTHEAST OF CALDWELL AROUND 530 PM.
  PATERSON AROUND 535 PM.
  PASSAIC AROUND 540 PM.

THIS STORM HAS A HISTORY OF PRODUCING HAIL UP TO 1 AND THREE QUARTER 
INCHES IN DIAMETER. WIND DAMAGE IS ALSO POSSIBLE WITH THIS STORM.

$$

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN UPTON NY.

LAT...LON 4105 7429 4098 7436 4087 7435 4083 7430
          4076 7416 4086 7409

The office that day

Everything else NWS New York, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 19, 4:31 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Passaic	44 min
Apr 19, 5:24 PM EDT	Severe Thunderstorm Warning	OKX	Bergen	36 min
Apr 19, 5:43 PM EDT	Severe Thunderstorm Warning	OKX	Essex	32 min
Apr 19, 5:54 PM EDT	Severe Thunderstorm Warning	OKX	Hudson, Union	51 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2002 Every severe thunderstorm warning in 2002

Sources

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