Alert archive / New Jersey / Flash Flood Warnings in 1989

Flash Flood Warning 25, NWS Philadelphia/Mount Holly

July 5, 1989Salem County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 5, 1989, 10:04 AM EDT for Salem County, New Jersey. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jul 5, 1989, 10:04 AM EDT (14:04 UTC)
Expired
Jul 5, 1989, 2:00 PM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Salem County, NJ

The radar

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

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 2.1 hours before the alert went out and 75 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-pSkew-T log-p diagram, Atlantic City In, NJ at 12:00Z on 1989-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 480 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Atlantic City In, NJ at 12:00Z on 1989-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
480 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
544 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPHL 051404
FFWPHL
NJC033-051800-
 
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA PA
1004 AM EDT WED JUL 5 1989
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL  200 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH NEW JERSEY
          ...SALEM
 
HEAVY RAINS FALLING OVER THE AREA HAS PRODUCED FLOODING ACROSS SALEM
COUNTY. RAINFALL AMOUNTS OF 8 INCHES WAS REPORTED FROM EMERGENCY
MANAGMENT PERSONNEL IN PORTIONS OF SALEM COUNTY WITH MAJOR FLOODING
PROBLEMS.
 
IF YOU ARE IN THE WARNED COUNTY IN AN AREA SUBJECT TO FLOODING
MOVE TO HIGHER GROUND.  DO NOT DRIVE THROUGHW FLOOD WATERS.
CLIMBING ATOP YOUR STALLED VEHICLE WILL NOT PREVENT YOU FROM
BEING SWEPT INTO DANGEROUS STREAM CONDITIONS AS WATER LEVELS RISE.
 
JWH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 9:02 AM EDTFlash Flood WarningPHIBurlington, Mercer3 hr
Jul 5, 9:02 AM EDTFlash Flood WarningPHICamden, Gloucester3 hr
Jul 5, 11:00 AM EDTFlash Flood WarningPHIBurlington, Mercer5 hr
Jul 5, 11:00 AM EDTFlash Flood WarningPHICamden, Gloucester, Salem5 hr

Nearby

Flash Flood Warnings in New Jersey, 1989Every flash flood 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; the sounding from the Mesonet's radiosonde archive.