Alert archive / New Jersey / Flash Flood Warnings in 1990

Flash Flood Warning 21, NWS New York, NY

December 4, 1990Passaic County, Sussex County, New Jersey

NWS New York, NY issued this flash flood warning at Dec 4, 1990, 6:00 AM EST for Passaic County, Sussex County, New Jersey. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Dec 4, 1990, 6:00 AM EST (11:00 UTC)
Expired
Dec 4, 1990, 8:00 AM EST
In force
2 hr
Issued by
NWS New York, NY
Area
Whole counties

Counties Passaic County, NJ, Sussex County, NJ

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 00:00Z, 11.0 hours before the alert went out and 182 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, Atlantic City In, NJ at 00:00Z on 1990-12-04Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Atlantic City In, NJ at 00:00Z on 1990-12-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 559 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
559 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
559 m²/s²
0-3 km storm-relative helicity
814 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 KEWR 041114
FFWEWR
NJC031-037-041300-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE NEWARK NJ
600 AM EST TUE DEC 04 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLOOD WARNING EFFECTIVE
UNTIL 800 AM EST FOR PEOPLE IN THE FOLLOWING COUNTIES OF

NORTHWEST NEW JERSEY...SUSSEX
NORTHEAST NEW JERSEY...PASSAIC

SMALL STREAMS AND CREEKS IN PASSAIC AND SUSSEX COUNTIES ARE
RESPONDING TO THE HEAVY OVERNIGHT RAINS. REPORTS BEING RECEIVED
SHOW RAINFALL TOTALS IN THESE COUNTIES ALSO APPROACHED THREE INCHES.
THEREFORE A FLOOD WARNING IS IN EFFECT UNTIL 800 AM.

REMEMBER...A FLOOD WARNING MEANS FLOODING IS IMMINENT OR OCCURRING.

IF YOU GET ANY INDICATION THAT FLOOD WATERS ARE APPROACHING...MOVE TO
HIGHER GROUND IMMEDIATELY. DO NOT DRIVE THROUGH FLOODED AREAS.

WOODWORTH

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 4, 5:20 AM ESTFlash Flood WarningOKXBergen3 hr

Nearby

Flash Flood Warnings in New Jersey, 1990Every flash flood warning in 1990

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.