Alert archive / New Jersey / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 46, NWS Philadelphia/Mount Holly

November 16, 1989Camden County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 16, 1989, 11:05 AM EST for Camden County, New Jersey. It was in force for 55 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: Nov 16, 1989, 11:05 AM EST (16:05 UTC)
Expired: Nov 16, 1989, 12:00 PM EST
In force: 55 min
Issued by: NWS Philadelphia/Mount Holly
Area: Whole counties

County Camden County, NJ

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where
Nov 16, 11:10 AM EST	Thunderstorm Wind 0	Camden, NJ
Nov 16, 11:10 AM EST	Thunderstorm Wind 0	Camden, NJ
Nov 16, 11:20 AM EST	Thunderstorm Wind 0	Camden, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 4.1 hours before the alert went out and 56 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: 195 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 575 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 380 m²/s²
0-3 km storm-relative helicity: 388 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPHL 161607
SVRPHL
NJC007-161700-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA PA
1105 AM EST THU NOV 16 1989
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL NOON EST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH NEW JERSEY
          ...CAMDEN
 
SEVERE THUNDERSTORMS ARE MOVING THROUGH SOUTHEASTERN PENNSYLVANIA
AND GLOUCESTER COUNTY OF SOUTHERN NEW JERSEY. WINDS IN EXCESS OF
60 MILES AN HOUR HAVE BEEN REPORTED THROUGHOUT THIS AREA...ALONG
WITH POSSIBLE TORNADOES.
 
A TORNADO WATCH CONTINUES FOR SOUTHEASTERN
PENNSYLVANIA AND SOUTHERN NEW JERSEY UNTIL 300 PM EDT.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCED WARNING.
 
WITH LEAVES ON THE ROADWAYS AND STORM SEWERS CLOGGED...
HEAVY RAINS WITH THIS THUNDERSTORM MAY CAUSE FLOODING OF
STREETS AND UNDERPASSES VERY QUICKLYT.  DO NOT DRIVE YOUR CAR INTO
AREAS WHERE THE WATER COVERS THE ROADWAY.  THE WATER MAY BE DEEPER
THAN YOU THINK.  IF CAUGHT IN RISING WATERS...ABANDON YOUR CAR
QUICKLY.  MOVE TO HIGHER GROUND.
 
JWH

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 16, 10:44 AM EST	Severe Thunderstorm Warning	PHI	Salem	61 min
Nov 16, 10:54 AM EST	Severe Thunderstorm Warning	PHI	Gloucester	66 min
Nov 16, 11:20 AM EST	Severe Thunderstorm Warning	PHI	Burlington	55 min
Nov 16, 11:40 AM EST	Severe Thunderstorm Warning	PHI	Mercer	35 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1989 Every severe thunderstorm warning in 1989

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.