Alert archive / New Jersey / Flash Flood Warnings in 2000

Flash Flood Warning 48, NWS New York, NY

December 17, 20004 counties in New Jersey; Rockland County, New York

NWS New York, NY issued this flash flood warning at Dec 17, 2000, 3:00 PM EST for 4 counties in New Jersey; Rockland County, New York. 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, 3:00 PM EST (20:00 UTC)
Expired
Dec 17, 2000, 6:00 PM EST
In force
3 hr
Issued by
NWS New York, NY
Area
Whole counties

Counties Bergen County, NJ, Essex County, NJ, Passaic County, NJ, Union County, NJ, Rockland County, NY

The radar

The Philadelphia radar (KDIX), 110 km from the middle of the area, began a volume at 20:00 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, 8.0 hours before the alert went out and 112 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 KOKX 172005 COR
FFWNYC

NJC039-NYC087-172300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING   ****CORRECTION COUNTY CODES****
NATIONAL WEATHER SERVICE NEW YORK NY
300 PM EST SUN DEC 17 2000

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS EXTENDED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...

  IN NORTHEASTERN NEW JERSEY
  UNION
  
  IN SOUTHEASTERN NEW YORK STATE
  ROCKLAND

* UNTIL 600 PM EST.

* AT 300 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
PERIODS OF LIGHT TO MODERATE RAIN CONTINUE TO PASS OVER THE
WARNED AREA IN ADVANCE OF A COLD FRONT. THE WARNED AREA HAS
RECEIVED 2 TO 3 INCHES OF RAIN EARLIER IN THE DAY CAUSING
SMALL STREAM FLOODING. 

* SEVERAL STREAMS IN THE WARNING AREA ARE ABOVE FLOOD STAGE...
THE MAHWAH RIVER AT SUFFERN NY AND THE RAHWAY RIVER AT SPRINGFIELD
NJ ARE CURRENTLY ABOVE FLOOD STAGE AND CONTINUE TO RISE.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL 
CREEKS AND STREAMS...HIGHWAYS...STREETS AND UNDERPASSES. 

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO
HIGHER GROUND.

$$

REPORT RSEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN UPTON NY.

LAT...LON 4120 7398 4069 7420 4062 7443 4118 7421
1 follow-up statement
000 
WGUS51 KOKX 172000
FFWOKX
NJC003-013-031-039-NYC087-172300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
300 PM EST SUN DEC 17 2000

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS EXTENDED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...

  IN NORTHEASTERN NEW JERSEY
  UNION

  IN SOUTHEASTERN NEW YORK STATE
  ROCKLAND

* UNTIL 600 PM EST.

* AT 300 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
PERIODS OF LIGHT TO MODERATE RAIN CONTINUE TO PASS OVER THE
WARNED AREA IN ADVANCE OF A COLD FRONT. THE WARNED AREA HAS
RECEIVED 2 TO 3 INCHES OF RAIN EARLIER IN THE DAY CAUSING
SMALL STREAM FLOODING.

* SEVERAL STREAMS IN THE WARNING AREA ARE ABOVE FLOOD STAGE...
THE MAHWAH RIVER AT SUFFERN NY AND THE RAHWAY RIVER AT SPRINGFIELD
NJ ARE CURRENTLY ABOVE FLOOD STAGE AND CONTINUE TO RISE.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS...STREETS AND UNDERPASSES.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO
HIGHER GROUND.

$$

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN UPTON NY.

LAT...LON 4120 7398 4069 7420 4062 7443 4118 7421

The office that day

Everything else NWS New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 17, 10:46 AM ESTSevere Thunderstorm WarningOKXBergen, Essex, Passaic24 min
Dec 17, 10:46 AM ESTSevere Thunderstorm WarningOKXUnion24 min
Dec 17, 11:38 AM ESTSevere Thunderstorm WarningOKXEssex, Union37 min
Dec 17, 11:38 AM ESTSevere Thunderstorm WarningOKXBergen, Passaic37 min
Dec 17, 11:38 AM ESTSevere Thunderstorm WarningOKXHudson37 min
Dec 17, 11:53 AM ESTFlash Flood WarningOKXBergen, Essex, Passaic, Union3 hr
Dec 17, 10:30 AM ESTFlash Flood WarningOKXOrange3 hr
Dec 17, 11:38 AM ESTSevere Thunderstorm WarningOKXRichmond37 min
Dec 17, 12:30 PM ESTSevere Thunderstorm WarningOKXPutnam, Westchester40 min
Dec 17, 12:30 PM ESTSevere Thunderstorm WarningOKXRockland40 min
Dec 17, 12:32 PM ESTSevere Thunderstorm WarningOKXQueens28 min
Dec 17, 1:26 PM ESTSevere Thunderstorm WarningOKXNassau, Suffolk34 min
Dec 17, 2:53 PM ESTSevere Thunderstorm WarningOKXSuffolk27 min

Nearby

Flash Flood Warnings in New Jersey, 2000Flash Flood Warnings in New York, 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.