Alert archive / New Jersey / Flash Flood Warnings in 1987

Flash Flood Warning 1, NWS New York, NY

July 9, 1987Bergen County, Passaic County, New Jersey

NWS New York, NY issued this flash flood warning at Jul 9, 1987, 3:40 PM EDT for Bergen County, Passaic County, New Jersey. It was in force for 80 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1987, 3:40 PM EDT (19:40 UTC)
Expired
Jul 9, 1987, 5:00 PM EDT
In force
80 min
Issued by
NWS New York, NY
Area
Whole counties

Counties Bergen County, NJ, Passaic 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 12:00Z, 7.7 hours before the alert went out and 174 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 1987-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1844 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 1987-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.1939Sfc1 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
1844 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1033 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
77 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 091943
FFWEWR
NJC003-031-092100-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAAL WEATHER SERVICE NEWARK NJ
340 PM EDT THU JUL 9 1987             

...SMALL STREAM AND URBAN FLOOD WARNING IN EFFECT UNTIL 5PM EDT...

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLOOD WARNING EFFECTIVE
UNTIL 500 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

NORTHEAST NEW JERSEY...BERGEN...PASSAIC

A FLOOD WARNING IS IN EFFECT FOR BERGEN AND PASSAIC COUNTIES UNTIL
500 PM EDT. A SPOTTER REPORT FORM BERGEN COUNTY SHOWN THAT 2 INCHES
OF RAIN HAVE FALLEN OVER THE COUNTY IN LESS HALF AN HOUR. URBAN
FLOODING WAS ALSO REPORTED IN GARFIELD NEW JERSEY ON THE BERGEN
PASSAIC COUNTY BORDER WHERE AUTOMOBILES ARE SUBMERGED UNDER WATER.

A FLOOD WARNING MEANS FLOODING IS IMMINENT.

IF YOU GET ANY INDICATION THAT FLOOD WATERS ARE APPROACHING...MOVE TO
HIGHER GROUND IMMEDIATEDLY. DO NOT TRY TO DRIVE THROUGH FLOODED AREAS
AND FOLLOW THE DIRECTION OF EMERGENCY MANAGEMlENT PERSONNEL.

GIGI

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

Local storm report, Jul 9, 9:56 AM EDT, 5 hours 44 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
956 AM EDT THU JUL 09 1987

STORM REPORT FOR THURSDAY JULY 9 1987

TIME(Z)    COUNTY          LOCATION                      EVENT

09/0450Z   MIDDLESEX NJ                              3/4 TO 1 INCH HAIL.

09/0525Z   MONMOUTH NJ     FREEHOLD                  2 BLOCK AREA WITH
                                                     LARGE TREES DOWN.
                                                     AREA CLOSED OFF.
Special weather statement, Jul 9, 12:00 PM EDT, 3 hours 40 minutes before
SPECIAL WEATHER STATEMENT
FOR NORTHERN NEW JERSEY..SOUTHEASTERN NEW YORK AND LONG ISLAND
NATIONAL WEATHER SERVICE NEW YORK NY
NOON EDT THU JUL 9 1987

...HEAT AND HUMIDITY CAN BE DANGEROUS TO HEALTH...

EXCESSIVE HEAT AND HUMIDITY CAN CAUSE SEVERE STRESS ON THE HUMAN BODY.
TEMPERATURES IN THE 90S COMBINED WITH HIGH HUMIDITIES WILL CREATE
POTENTIALLY HAZARDOUS CONDITIONS FOR PEOPLE SUFFERING FROM VASCULAR
AND PULMINARY PROBLEMS.

CAUTION AND GOOD JUDGEMENT SHOULD BE EXCERCISED TO KEEP OUTDOOR
ACTIVITIES TO A MINIMUM DURING THE HEAT OF THE DAY BETWEEN 10 AM AND 4
PM. A KEEP COOL STRATEGY SHOULD BE EXERCISED WITH THE EMPHASIS ON COOL
PLACES AND REST AS OPPOSED TO EXERTION.

LIGHT AND LOOSE CLOTHING IS RECOMMENDED AND WALKING AS OPPOSED TO
RUNNING OR HURRYING.

REMEMBER THE LIFE YOU SAVE MIGHT BE YOUR OWN OR SOMEONE YOU LOVE.

TJG
Special weather statement, Jul 9, 2:46 PM EDT, 54 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW YORK NY
230 PM EDT THU JUL 9 1987

...DO NOT USE AFTER 4 PM EDT...

THUNDERSTORMS WERE SCATTERED THROUGH NEW JERSEY AND THE WATERS JUST
OFFSHORE AS WELL AS OVER EASTERN PENNSYLVANIA CONNECTICUT MASSACHUSETTS
AND THE LOWER HUDSON VALLEY. A FEW OF THEM WERE VERY HEAVY...WITH THE
STRONGEST ONES IN EXTREME SOUTHEAST PENNSYLVANIA NORTH CENTRAL NEW
JERSEY...SOUTHWEST NEW JERSEY...BETWEEN WILLIAMSPORT AND SCRANTON IN
PENNSYLVANIA...AND FROM NORTHEAST CONNECTICUT INTO SOUTH CENTRAL
MASSACHUSETTS.
MOVEMENT WAS TOWARDS THE SOUTHEAST ABOUT 25 MILES AN HOUR.

VERY HEAVY RAIN...GUSTY WINDS...AND DANGEROUS LIGHTNING MAY ACCOMPANY
SO}ME OF THESE STORMS. A FEW OF THE STORMS COULD CAUSE LOCAL FLOODING
OF STREETS AND HIGHWAYS IN POORLY DRAINED AREAS.
END/TCM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 12:58 AM EDTSevere Thunderstorm WarningOKXMonmouth62 min

Nearby

Flash Flood Warnings in New Jersey, 1987Every flash flood warning in 1987

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.