Alert archive / New Jersey / Flash Flood Warnings in 1994

Flash Flood Warning 14, NWS Philadelphia/Mount Holly

August 22, 1994Camden County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 22, 1994, 5:06 PM EDT for Camden County, New Jersey. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Aug 22, 1994, 5:06 PM EDT (21:06 UTC)
Expired
Aug 22, 1994, 9:15 PM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Camden County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 9.1 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-pSkew-T log-p diagram, Atlantic City In, NJ at 12:00Z on 1994-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 64 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 1994-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.19395878Sfc1 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
64 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
511 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
44 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 
TTAA00 KPHL 222107
FFWPHL
NJC007-230115-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
506 PM EDT MON AUG 22 1994
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  915 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH NEW JERSEY
 
   ...CAMDEN COUNTY
 
THE HEAVY RAIN THAT FELL OVER CAMDEN COUNTY EARLIER TODAY HAS PUSHED
THE COOPER RIVER IN HADDONFIELD TO ITS FLOOD STAGE OF 2.8 FEET.  A SLOW
RISE ABOVE FLOOD STAGE TO AROUND 3.0 FT IS EXPECTED TO OCCUR DURING THE
EVENING.
 
IF YOU ARE IN THE WARNED COUNTY IN AN AREA SUBJECT TO FLOODING
MOVE TO HIGHER GROUND.  DO NOT DRIVE THROUGH FLOOD WATERS.
CLIMBING ATOP YOUR STALLED VEHICLE WILL NOT PREVENT YOU FROM
BEING SWEPT INTO DANGEROUS STREAM CONDITIONS AS WATER LEVELS RISE.
DO NOT TAKE FLOOD PRONE ROADS.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 8:46 PM EDTSevere Thunderstorm WarningPHIGloucester44 min
Aug 21, 8:50 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cumberland55 min
Aug 21, 10:07 PM EDTSevere Thunderstorm WarningPHIMercer33 min
Aug 22, 1:25 AM EDTFlash Flood WarningPHIMercer95 min
Aug 22, 3:15 AM EDTFlash Flood WarningPHIMercer3 hr
Aug 22, 4:37 PM EDTFlash Flood WarningPHIMercer3 hr

Nearby

Flash Flood Warnings in New Jersey, 1994Every flash flood warning in 1994

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.