Alert archive / New Jersey / Flash Flood Warnings in 1996

Flash Flood Warning 125, NWS Philadelphia/Mount Holly

December 2, 1996Mercer County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Dec 2, 1996, 8:15 AM EST for Mercer County, New Jersey. It was in force for 5 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
Dec 2, 1996, 8:15 AM EST (13:15 UTC)
Expired
Dec 2, 1996, 1:00 PM EST
In force
5 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 13:14 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, 1.3 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 1996-12-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°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 1996-12-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -207 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1187 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
-207 m²/s²
0-3 km storm-relative helicity
-175 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 021326
FFWPHL
NJC021-PAC029-021800-

FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
815 AM EST MON DEC 2 1996

THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY NJ HAS
ISSUED A EXTENDED THE FLASH FLOOD WARNING EFFECTIVE UNTIL 100 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN  NEW JERSEY

   ...MERCER COUNTY

IN PENNSYLVANIA

   ...BUCKS COUNTY

AT 8 AM THE ASSUNPINK CREEK IN DOWNTOWN TRENTON WAS AT 8.24 FEET AND
RISING. FLOOD STAGE IS 7 FEET. THE CREEK SHOULD RISE TO NEAR 9 FEET
LATER THIS MORNING.

AT 8AM THE NESHAMINY CREEK AT LANGHORNE WAS AT 10 FEET. FLOOD STAGE
IS 9 FEET. THE CREEK SHOULD CREST NEAR 11 FEET LATER THIS MORNING.

STAY TUNED TO NOAA WEATHER RADIO...THE VOICE OF THE NATIONAL WEATHER
SERVICE...OR TO COMMERCIAL RADIO OR TELEVISION STATIONS FOR THE
LATEST STORM INFORMATION.

IF YOU ARE IN AN AREA PRONE TO FLOODING...MOVE TO HIGHER GROUND
IMMEDIATELY...BEFORE YOUR ACCESS IS CUT OFF BY RISING FLOOD WATERS.
IF YOUR VEHICLE STALLS...ABANDON IT AND SEEK HIGHER GROUND QUICKLY.
RAPIDLY RISING WATER MAY ENGULF THE CAR AND SWEEP IT AWAY.


WN

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 2, 1:08 AM ESTSevere Thunderstorm WarningPHISussex47 min
Dec 2, 1:26 AM ESTFlash Flood WarningPHIMorris59 min
Dec 2, 1:26 AM ESTSevere Thunderstorm WarningPHIMorris59 min
Dec 2, 3:26 AM ESTFlash Flood WarningPHIMorris2 hr
Dec 2, 5:00 AM ESTFlash Flood WarningPHIMercer4 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.