Alert archive / New Jersey / Flash Flood Warnings in 1991

Flash Flood Warning 3, NWS Philadelphia/Mount Holly

July 13, 1991Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 13, 1991, 7:58 AM EDT for Burlington County, New Jersey. It was in force for 92 min.

The area

The counties it named.

The facts

Issued
Jul 13, 1991, 7:58 AM EDT (11:58 UTC)
Expired
Jul 13, 1991, 9:30 AM EDT
In force
92 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Burlington County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 00:00Z, 12.0 hours before the alert went out and 50 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 1991-07-13Temperature 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 1991-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 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
1630 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
91 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 KPHL 131206 COR
FFWPHL
NJC005-007-015-PAC101-131400-

BULLETIN - EBS ACTIVATION REQUESTED
URBAN FLOOD WARNING...CORRECTED
NATIONAL WEATHER SERVICE PHILADELPHIA PA
758 AM EDT SAT JUL 13 1991

THE NATIONAL WEATHER SERVICE IN PHILADELPHIA HAS ISSUED A
URBAN FLOOD WARNING EFFECTIVE UNTIL 930 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTH NEW JERSEY

   ...WESTERN BURLINGTON COUNTY...WESTERN CAMDEN COUNTY
   ...WESTERN GLOUCESTER COUNTY


IN SOUTHEAST PENNSYLVANIA

   ...PHILADELPHIA COUNTY

TORRENTIAL RAINS HAV FALLEN OVER PHILADELPHIA AND NEARBY PORTIONS OF
SOUTHERN NEW JERSEY. REPORTS OF 2 TO 4 INCHES IN A COUPLE HOURS WERE
COMMON. THIS HAS CAUSED SEVERE URBAN FLOODING IN PHILADELPHIA AND
LOCALLY SEVERE URBAN AND POOR DRAINAGE FLOODING CAN BE EXPECTED AS
THESE HEAVY STORMS MOVE INTO SOUTHERN NEW JRSEY OVER THE NEXT COUPLE
HOURS.


IF YOU ARE IN THE WARNED COUNTY IN AN AREA SUBJECT TO FLOODING
MOVE TO HIGHER GROUND.  DO NOT DRIVE THRO;UGH FLOOD WATERS.
CLIMBING ATOP YOUR STALLED VEHICLE WILL NOT PREVENT YOU FROM
BEING SWEPT INTO DANGEROUS STREAM CONDITIONS AS WATER LEVELS RISE.
NC

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 7:58 AM EDTFlash Flood WarningPHICamden, Gloucester92 min

Nearby

Flash Flood Warnings in New Jersey, 1991Every flash flood warning in 1991

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.