Alert archive / New Jersey / Flash Flood Warnings in 2000

Flash Flood Warning 32, NWS Philadelphia/Mount Holly

August 12, 2000Morris County, Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 12, 2000, 9:32 AM EDT for Morris County, Sussex County, New Jersey. It was in force for 118 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 12, 2000, 9:32 AM EDT (13:32 UTC)
Expired
Aug 12, 2000, 11:30 AM EDT
In force
118 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

Counties Morris County, NJ, Sussex County, NJ

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 1.5 hours before the alert went out and 148 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, Brookhaven, NY at 12:00Z on 2000-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 131 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, Brookhaven, NY at 12:00Z on 2000-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
131 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
745 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
106 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 
WGUS51 KPHI 121338
FFWPHI
NJC027-037-121530-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
932 AM EDT SAT AUG 12 2000

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL MORRIS COUNTY IN NORTHERN NEW JERSEY
  EASTERN SUSSEX COUNTY IN NORTHWEST NEW JERSEY

* UNTIL 1130 AM EDT.

* AT 927 AM EDT...WEATHER SERVICE RADAR INDICATED SOME NEARLY
  STATIONARY THUNDERSTORMS AROUND THE SUSSEX/MORRIS COUNTY LINE.
  THESE STORMS HAVE DROPPED UP TO A RADAR ESTIMATED 2 INCHES OF
  RAIN OVER THE PAST TWO HOURS AND COULD DROP AROUND AN ADDITIONAL
  INCH OF RAIN THROUGH 1030 AM.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE
YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER
DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES
CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER
GROUND.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF CREEKS
AND STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO
TRIGGER SOME MUDSLIDES IN STEEP TERRAIN.

FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER
RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE
TELEVISION OUTLET.

$$
LAT...LON 4112 7441 4086 7455 4090 7478 4121 7468

TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 8:58 AM EDTFlash Flood WarningPHIMonmouth14 hr
Aug 12, 10:50 AM EDTFlash Flood WarningPHIMorris, Sussex3 hr
Aug 12, 12:07 PM EDTFlash Flood WarningPHIHunterdon, Warren6 hr
Aug 12, 1:03 PM EDTFlash Flood WarningPHIMorris, Sussex6 hr
Aug 12, 1:21 PM EDTFlash Flood WarningPHIHunterdon6 hr
Aug 12, 2:22 PM EDTFlash Flood WarningPHISomerset6 hr
Aug 12, 4:00 PM EDTFlash Flood WarningPHIBurlington6 hr
Aug 12, 4:30 PM EDTFlash Flood WarningPHIMiddlesex4 hr

Nearby

Flash Flood Warnings in New Jersey, 2000Every flash flood warning in 2000

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.