Alert archive / New Jersey / Flash Flood Warnings in 1996

Flash Flood Warning 30, NWS Philadelphia/Mount Holly

June 12, 1996Mercer County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 12, 1996, 6:07 PM EDT for Mercer County, New Jersey. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 12, 1996, 6:07 PM EDT (22:07 UTC)
Expired
Jun 12, 1996, 8:10 PM EDT
In force
2 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Mercer County, NJ

The radar

The Philadelphia radar (KDIX), 45 km from the middle of the area, began a volume at 22:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.1 hours before the alert went out and 150 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, Phillips Aaf/Abe, MD at 12:00Z on 1996-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 801 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phillips Aaf/Abe, MD at 12:00Z on 1996-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.193958Sfc1 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
801 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
635 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPHL 122204
FFWPHL
NJC021-130010-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
607 PM EDT WED JUN 12 1996

THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY NJ HAS
ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 810 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN  NEW JERSEY

   ...MERCER COUNTY
 
AT 600 PM...RADAR SHOWED THUNDERSTORMS PRODUCING TORRENTIAL RAINFALL
ACROSS MERCER COUNTY.  THESE STORMS WERE MOVING VERY SLOWLY TO THE
NORTHEAST.  RADAR WAS ESTIMATING RAINFALL OF UP TO 2 INCHES PER HOUR
WITH THESE STORMS.  IN ADDITION...THUNDERSTORMS OVER LOWER BUCKS
COUNTY WILL BE MOVING INTO MERCER COUNTY...AGGRAVATING THE FLOOD
SITUATION.
 
DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE WATER MAY BE
DEEPER THAN YOU THINK. RAPIDLY RISING WATERS CAN QUICKLY ENGULF
YOUR VEHICLE AND ITS OCCUPANTS...WASHING THEM AWAY. REMEMBER...
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.

FRANKLIN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 2:38 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean62 min
Jun 12, 4:46 PM EDTSevere Thunderstorm WarningPHIHunterdon49 min
Jun 12, 5:06 PM EDTSevere Thunderstorm WarningPHIMercer, Somerset64 min
Jun 12, 6:05 PM EDTSevere Thunderstorm WarningPHIMiddlesex55 min
Jun 12, 6:14 PM EDTSevere Thunderstorm WarningPHIBurlington61 min
Jun 12, 7:15 PM EDTFlash Flood WarningPHIMercer3 hr

Nearby

Flash Flood Warnings in New Jersey, 1996Every flash flood warning in 1996

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; radar from the NEXRAD Level II archive.