Alert archive / New Jersey / Flash Flood Warnings in 1989

Flash Flood Warning 7, NWS New York, NY

June 9, 1989Monmouth County, New Jersey

NWS New York, NY issued this flash flood warning at Jun 9, 1989, 10:30 PM EDT for Monmouth County, New Jersey. It was in force for 90 min.

The area

The counties it named.

The facts

Issued
Jun 9, 1989, 10:30 PM EDT (02:30 UTC)
Expired
Jun 10, 1989, 12:00 AM EDT
In force
90 min
Issued by
NWS New York, NY
Area
Whole counties

County Monmouth 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, 2.5 hours before the alert went out and 98 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 1989-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 562 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 00:00Z on 1989-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 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
562 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
594 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KEWR 100237
FFWEWR
NJC025-100400-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE NEWARK NJ
1030 PM EDT FRI JUN 9 1989

THE NATIONAL WEATHER SERVICE HAS ISSUED A SMALL STREAM AND
URBAN FLOOD WARNING EFFECTIVE UNTIL MIDNIGHT FOR PEOPLE IN THE
FOLLOWING COUNTIES OF

CENTRAL  NEW JERSEY...MONMOUTH

MODERATE TO HEAVY RAIN HAS FALLEN OVER PARTS OF MONMOUTH COUNTY
THROUGHOUT THE EVENING AND IS EXPECTED TO CONTINUE FOR THE NEXT HOUR
OR TWO.  THIS WILL LIKELY CAUSE SOME MINOR FLOODING OF URBAN AND
POORLY DRAINED AREAS.

PERSONS LIVING IN FLOOD-PRONE AREAS SHOULD BE ON THE LOOKOUT FOR
RISING WATER AND MOVE TO HIGHER GROUND IMMEDIATELY...AND MOTORISTS
SHOULD NOT1 ATTEMPT TO DRIVE ACROSS FLOODED ROADS.
BJT

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, Jun 9, 9:00 PM EDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW YORK NY
845 PM EDT FRI JUN 9 1989

...PLEASE DO NOT USE AFTER 10 PM EDT...

A THUNDERSTORM COMPLEX PRODUCING VERY HEAVY DOWNPOURS...FREQUENT
LIGHTNING AND GUSTY WINDS WAS LOCATED OVER THE CITY OF PHILADELPHIA
NORTHEAST ACROSS MONTGOMERY AND BUCKS COUNTIES IN SOUTHEAST PENNSYLVANIA
AND CAMDEN...BURLINGTON AND MERCER COUNTIES IN SOUTHWEST NEW JERSEY.

THIS COMPLEX WILL BE MOVING INTO HUNTERDON...SOMERSET...MIDDLESEX AND
MONMOUTH COUNTIES BY 930 PM AND PROBABLY REACH THE REMAINDER OF NORTHERN
NEW JERSEY AND NEW YORK CITY BY AROUND 10 PM.

TORRENTIAL DOWNPOURS...FREQUENT LIGHTNING AND URBAN AND HIGHWAY FLOODING
IS LIKELY WITH THE PASSAGE OF THESE STORMS.

ELSEWHERE A THUNDERSTORM WITH HEAVY RAIN WAS LOCATED ON THE WARREN/
MONROE COUNTY BORDER.

HEAVY RAIN WAS ALREADY IN PROGRESS RIGHT AROUND NEW YORK CITY
AND SHOULD MOVE INTO BERGEN...ROCKLAND AND WESTCHESTER COUNTIES
SHORTLY.

PATCHY LIGHT RAIN WAS OCCURRING OVER UPSTATE NEW YORK AND NORTHERN
CONNECTICUT.

THUNDERSTORMS WERE MOVING NORTHNORTHEAST AT 30 MILES AN HOUR.

GIGI
Special weather statement, Jun 9, 9:48 PM EDT, 42 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW YORK NY
935 PM EDT FRI JUN 9 1989

...PLEASE DO NOT USE AFTER 11 PM EDT...

A THUNDERSTORM COMPLEX PRODUCING TORRENTIAL DOWNPOURS AND FREQUENT
LIGHTNING WAS LOCATED FROM THE FIVE BOROUGHS OF NEW YORK CITY SOUTHWEST
ACROSS SOUTHERN BERGEN...HUDSON...ESSEX...UNION...SOMERSET...MIDDLESEX
AND MONMOUTH COUNTIES IN NORTHERN NEW JERSEY.

THIS COMPLEX WILL BE MOVING INTO THE REMAINDER OF BERGEN COUNTY AS WELL
AS SOUTHEAST PASSAIC COUNTY BY 10 PM...THIS COMPLEX WILL ALSO REACH
NASSAU...ROCKLAND AND WESTCHESTER COUNTIES BY 1100 PM.

TORRENTIAL DOWNPOURS...URBAN AND HIGHWAY FLOODING WILL OCCUR WITH THE
PASSAGE OF THESE STORMS.  MOTORISTS SHOULD BE WARY OF PONDING OF WATER
IN LOW-LYING AND FLOOD PRONE AREAS ESPECIALLY WHILE TRAVELING THROUGH
UNDERPASSES.

ANOTHER THUNDERSTORM WITH HEAVY RAIN WAS LOCATED OVER NORTHERN
WESTCHESTER COUNTY.

PATCHY LIGHT RAIN WAS OCCURRING! OVER UPSTATE NEW YORK...SOUTHWEST
CONNECTICUT AND OVER THE EASTERN THIRD OF PENNSYLVANIA.

THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.

GIGI

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 11:40 PM EDTFlash Flood WarningOKXSomerset4 hr

Nearby

Flash Flood Warnings in New Jersey, 1989Every flash flood warning in 1989

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.