Alert archive / New York / Flash Flood Warnings in 1996

Flash Flood Warning 21, NWS New York, NY

July 13, 1996Orange County, Rockland County, Westchester County, New York; Passaic County, New Jersey

NWS New York, NY issued this flash flood warning at Jul 13, 1996, 10:05 AM EDT for Orange County, Rockland County, Westchester County, New York; Passaic County, New Jersey. It was in force for 12 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
Jul 13, 1996, 10:05 AM EDT (14:05 UTC)
Expired
Jul 13, 1996, 10:00 PM EDT
In force
12 hr
Issued by
NWS New York, NY
Area
Whole counties

Counties Passaic County, NJ, Orange County, NY, Rockland County, NY, Westchester County, NY

The radar

The Brookhaven radar (KOKX), 109 km from the middle of the area, began a volume at 14:09 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, 2.1 hours before the alert went out and 109 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 1996-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 665 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 1996-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 square meters per square second.193958Sfc1 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
665 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
530 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KNYC 131411
FFWNYC
NJC003-013-031-039-NYC071-087-119-140200-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1005 AM EDT SAT JUL 13 1996
 
THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 1000 PM EDT
FOR THE PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST NEW JERSEY
 
   ...BERGEN COUNTY...ESSEX COUNTY...PASSAIC COUNTY...UNION COUNTY
 
 
IN SOUTHEAST NEW YORK
 
   ...ORANGE COUNTY...ROCKLAND COUNTY...WESTCHESTER COUNTY
 
HEAVY RAINS FROM TROPICAL STORM BERTHA ARE CAUSING MANY SMALL
RIVERS AND STREAMS IN NORTHERN NEW JERSEY AND THE LOWER HUDSON
RIVER VALLEY TO APPROACH BANKFULL. MINOR FLOODING IS OCCURRING
IN WESTCHESTER COUNTY ALONG THE SAWMILL RIVER AND IN BERGEN
COUNTY ALONG HOHOKUS BROOK. RAINFALL TOTALS OVER THE WARNING
AREA AS OF 10 AM ARE GENERALLY 2 TO 3 INCHES...WITH THE HIGHEST
AMOUNTS RECORDED AT CHARLOTTEBURG NJ (3.40") AND WEST MILFORD NJ
(3.29").
 
THE WARNING AREA COULD RECEIVE AN ADDITIONAL 1 TO 3 INCHES WITH
EMBEDDED HIGHER AMOUNTS THROUGHOUT THE REMAINDER OF THE DAY.
THE MAHWAH RIVER AT SUFFERN NY WILL EXCEED ITS FLOOD STAGE OF
4 FEET BY 11 AM. THE RAHWAY RIVER AT SPRINGFIELD NJ IS APPROACH
BANKFULL. THE LARGER RIVERS...THE SADDLE RIVER AND THE RAMAPO
RIVER IN NORTHERN NEW JERSEY ARE RISING RAPIDILY.
 
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
CROSSd SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
PERSONS LIVING ALONG RIVERS AND STREAMS IN THE EFFECTED WARNING
AREA SHOULD REMAIN ON THE ALERT FOR RISING WATERS.
 
MCKILLOP

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 10:05 AM EDTFlash Flood WarningOKXBergen, Essex, Union12 hr

Nearby

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