Alert archive / New Jersey / Flash Flood Warnings in 1996

Flash Flood Warning 78, NWS New York, NY

December 2, 1996Bergen County, New Jersey; Rockland County, New York

NWS New York, NY issued this flash flood warning at Dec 2, 1996, 3:31 AM EST for Bergen County, 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 2, 1996, 3:31 AM EST (08:31 UTC)
Expired
Dec 2, 1996, 6:30 AM EST
In force
3 hr
Issued by
NWS New York, NY
Area
Whole counties

Counties Bergen County, NJ, Rockland County, NY

The radar

The Brookhaven radar (KOKX), 102 km from the middle of the area, began a volume at 08:34 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 00:00Z, 8.5 hours before the alert went out and 102 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 00:00Z on 1996-12-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 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, Brookhaven, NY at 00:00Z on 1996-12-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 397 square meters per square second.1939587897Sfc1 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
1 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
549 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
397 m²/s²
0-3 km storm-relative helicity
452 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 KNYC 020834
FFWNYC
NJC003-NYC087-021130-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
331 AM EST MON DEC 2 1996
 
THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  630 AM EST
FOR THE PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST NEW JERSEY
 
   ...BERGEN COUNTY
 
 
IN SOUTHEAST NEW YORK
 
   ...ROCKLAND COUNTY
 
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF RAIN WILL
CONTNUE OVER THE REGION FOR THE NEXT FEW HOURS.
 
THIS WILL AGGRAVATE SMALL CREEKS AND RIVERS...SOME OF WHICH HAVE RISEN
TO NEAR OR OVER BANK FULL. AT 320 AM...THE HO-HO-KUS CREEK IN BERGEN
COUNTY HAD RISEN TO 2.96 FT. FLOOD STAGE IS 3.0 FEET. THE CREEK IS EXPEC
DTO GO ABOVE FLOOD STAGE SHORTLY...AND RECEDE BELOW FLOOD STAGE LATER THIMORNING.
 
IN ADDITION...THE RAMAPO RIVER AT MAHWAH HAD RISEN TO 7.07 FEET AT 320
AM. FLOOD STAGE IS 8.0 FEET. THE RIVER IS EXPECTED TO CREST NEAR FLOOD
STAGE LATER THIS MORNING.
 
OTHER SMALL CREEKS AND RIVERS MAY ALSO EXCEED BANK FULL DURING THE EARLY
MORNING. BE ON THE ALERT FOR FLOODING NEAR THESE CREEKS.
 
MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A
SMALL ONE...ON FOOT.
 
HAYES

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 2, 1:59 AM ESTFlash Flood WarningOKXBergen, Essex, Passaic31 min
Dec 2, 1:59 AM ESTFlash Flood WarningOKXUnion31 min
Dec 2, 1:59 AM ESTFlash Flood WarningOKXHudson31 min
Dec 2, 1:59 AM ESTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic31 min
Dec 2, 1:59 AM ESTSevere Thunderstorm WarningOKXUnion31 min
Dec 2, 4:33 AM ESTFlash Flood WarningOKXEssex117 min
Dec 2, 1:23 AM ESTSevere Thunderstorm WarningOKXOrange67 min

Nearby

Flash Flood Warnings in New Jersey, 1996Flash Flood Warnings in New York, 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.