Alert archive / New Jersey / Flash Flood Warnings in 2000

Flash Flood Warning 53, NWS Philadelphia/Mount Holly

December 17, 20004 counties in New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Dec 17, 2000, 7:42 AM EST for 4 counties in New Jersey. It was in force for 3 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 17, 2000, 7:42 AM EST (12:42 UTC)
Expired
Dec 17, 2000, 10:15 AM EST
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Mercer County, NJ

The radar

The Philadelphia radar (KDIX), 39 km from the middle of the area, began a volume at 12:42 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

Brookhaven, NY (KOKX), launched 12:00Z, 0.7 hours before the alert went out and 200 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 2000-12-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 313 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 2000-12-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 582 square meters per square second.1939587897117136Sfc1 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
313 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
453 m above ground
0-6 km bulk shear
92 kt
0-1 km storm-relative helicity
582 m²/s²
0-3 km storm-relative helicity
603 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.1

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KPHI 171245
FFWPHL

NJC005-007-015-021-171515-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
742 AM EST SUN DEC 17 2000

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MERCER COUNTY IN CENTRAL NEW JERSEY
  WESTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY
  CAMDEN COUNTY IN SOUTHERN NEW JERSEY
  GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY

* UNTIL 1015 AM EST.

* AT 740 AM EST...WEATHER SERVICE RADAR INDICATED..TORRENTIAL 
DOWNPOURS MOVING THROUGH WEST CENTRAL NEW JERSEY. RAINFALL RATES OF 
1 TO 2 INCHES PER HOUR ARE EXPECTED.

SMALL STREAMS AND POOR DRAINAGE AREAS CAN BE EXPECTED TO FLOOD. 

REMEMBER...DO NOT DRIVE THROUGH FLOODED AREAS. THE WATER MAY BE 
DEEPER THAN YOU THINK.

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

$$

RNS

LAT...LON 4025 7458 3984 7462 3956 7500 3976 7535
          4017 7472 4037 7486

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 17, 6:55 AM ESTFlash Flood WarningPHIHunterdon, Warren3 hr
Dec 17, 7:55 AM ESTSevere Thunderstorm WarningPHIBurlington, Camden35 min
Dec 17, 9:25 AM ESTSevere Thunderstorm WarningPHISalem35 min
Dec 17, 10:20 AM ESTFlash Flood WarningPHISussex3 hr
Dec 17, 11:01 AM ESTFlash Flood WarningPHIBurlington, Camden, Gloucester, Mercer3 hr
Dec 17, 11:16 AM ESTFlash Flood WarningPHIWarren3 hr
Dec 17, 11:47 AM ESTSevere Thunderstorm WarningPHIMercer, Middlesex28 min
Dec 17, 11:50 AM ESTFlash Flood WarningPHIMiddlesex, Somerset3 hr
Dec 17, 12:26 PM ESTSevere Thunderstorm WarningPHIBurlington, Ocean34 min
Dec 17, 12:49 PM ESTSevere Thunderstorm WarningPHIMonmouth26 min

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; radar from the NEXRAD Level II archive.