Alert archive / New Jersey / Flash Flood Warnings in 1992

Flash Flood Warning 20, NWS New York, NY

July 31, 1992Middlesex County, Monmouth County, New Jersey

NWS New York, NY issued this flash flood warning at Jul 31, 1992, 10:05 AM EDT for Middlesex County, Monmouth County, New Jersey. It was in force for 70 min.

The area

The counties it named.

The facts

Issued
Jul 31, 1992, 10:05 AM EDT (14:05 UTC)
Expired
Jul 31, 1992, 11:15 AM EDT
In force
70 min
Issued by
NWS New York, NY
Area
Whole counties

Counties Middlesex County, NJ, Monmouth County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 2.1 hours before the alert went out and 103 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 12:00Z on 1992-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 798 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 1992-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 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
798 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
721 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KNYC 311406
FFWNYC
NJC025-023-311515-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1005 AM EDT FRI JUL 31 1992
 
THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
EFFECTIVE UNTIL 1115 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL NEW JERSEY
 
   ...MONMOUTH COUNTY
 
AND THE ADJACENT COASTAL WATERS
 
 
IN NORTHEAST NEW JERSEY
 
   ...SOUTHERN MIDDLESEX COUNTY
 
 
A SEVERE THUNDERSTORM WAS MOVING ACROSS BURLINGTON COUNTY IN CENTRAL
NEW JERSEY. WINDS WITH GUSTS TO 90 MPH AND 2 AND A HALF INCHES OF
RAIN IN LESS THAN 5 MINUTES HAVE BEEN REPORTED WITH ITS PASSAGE.
 
THE STORM IS MOVING NORTHEAST AT NEARLY 40 MPH AND SHOULD MOVE INTO
WESTERN MONMOUTH AND SOUTHERN MIDDLESEX COUNTY SHORTLY.
 
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 58
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY H`EAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 31, 6:32 AM EDT, 3 hours 33 minutes before
NYZ014>017-NJZ001-005-007-015-311500-

SPECIAL WEATHER STATEMENT - WIDESPREAD DENSE FOG
NATIONAL WEATHER SERVICE NEW YORK NY
630 AM EDT THU JUL 31 1992

WITH LIGHT WINDS...HIGH HUMIDITY AND A WARM FRONT SLOWLY
MOVING NORTHWARD FROM SOUTHERN NEW JERSEY WIDESPREAD DENSE
FOG IS DEVELOPING AND WILL REMAIN IN MANY AREAS OF SOUTHEASTERN
NEW YORK INCLUDING LONG ISLAND AND NORTHER NEW JERSEY DURING THE
RUSH HOUR.

CONDITIONS WILL IMPROVE LATE THIS MORNING.

THEREFORE TRAVELERS ARE URGED TO USE CAUTION.  ALLOW YOURSELF
EXTRA TIME TO REACH YOUR DESTINATION.

ES
Special weather statement, Jul 31, 6:36 AM EDT, 3 hours 29 minutes before
NYZ014>017-NJZ001-005-007-015-311500-

SPECIAL WEATHER STATEMENT - WIDESPREAD DENSE FOG
NATIONAL WEATHER SERVICE NEW YORK NY
630 AM EDT THU JUL 31 1992

WITH LIGHT WINDS...HIGH HUMIDITY AND A WARM FRONT SLOWLY
MOVING NORTHWARD FROM SOUTHERN NEW JERSEY WIDESPREAD DENSE
FOG IS DEVELOPING AND WILL REMAIN IN MANY AREAS OF SOUTHEASTERN
NEW YORK INCLUDING LONG ISLAND AND NORTHERN NEW JERSEY DURING THE
RUSH HOUR.

CONDITIONS WILL IMPROVE LATE THIS MORNING.

THEREFORE TRAVELERS ARE URGED TO USE CAUTION.  ALLOW YOURSELF
EXTRA TIME TO REACH YOUR DESTINATION.

ES

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 10:05 AM EDTSevere Thunderstorm WarningOKXMiddlesex, Monmouth70 min
Jul 31, 4:52 PM EDTSevere Thunderstorm WarningOKXMiddlesex53 min

Nearby

Flash Flood Warnings in New Jersey, 1992Every flash flood warning in 1992

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.