Alert archive / New Jersey / Flash Flood Warnings in 2002

Flash Flood Warning 21, NWS Philadelphia/Mount Holly

July 19, 2002Burlington County, Camden County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 19, 2002, 7:12 PM EDT for Burlington County, Camden County, New Jersey. It was in force for 2 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 19, 2002, 7:12 PM EDT (23:12 UTC)
Expired: Jul 19, 2002, 9:15 PM EDT
In force: 2 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Whole counties

Counties Burlington County, NJ, Camden County, NJ

The radar

The Philadelphia radar (KDIX), 36 km from the middle of the area, began a volume at 23:15 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 11.2 hours before the alert went out and 118 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 6 J/kg
Mixed-layer CIN: -238 J/kg
Mixed-layer LCL: 1440 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KPHI 192312
FFWPHI
NJC005-007-200115-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
712 PM EDT FRI JUL 19 2002

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CAMDEN COUNTY IN SOUTHERN NEW JERSEY
  CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY

* UNTIL 915 PM EDT.

* AT 710 PM EDT...WEATHER SERVICE RADAR INDICATED VERY HEAVY RAIN
FALLING IN EXCESS OF TWO INCHES AN HOUR. THE HEAVY RAIN WILL LAST
ANOTHER COUPLE OF HOURS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. 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 CROSS SAFELY. VEHICLES
CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER
GROUND.

INTENSE LIGHTNING IS ALSO OCCURRING WITH THIS STORM. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. IF OUTDOORS...STAY AWAY
FROM ISOLATED HIGH OBJECTS SUCH AS TREES.

FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER
RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE
TELEVISION OUTLET.

$$

LAT...LON 4008 7458 3985 7464 3964 7485 3984 7515
          4006 7498

EBERWINE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 1:51 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	24 min
Jul 19, 2:10 PM EDT	Special Marine Warning	PHI		65 min
Jul 19, 2:10 PM EDT	Special Marine Warning	PHI		65 min
Jul 19, 2:42 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	48 min
Jul 19, 3:17 PM EDT	Special Marine Warning	PHI		88 min
Jul 19, 3:33 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	42 min
Jul 19, 4:06 PM EDT	Tornado Warning	PHI	Ocean	39 min
Jul 19, 4:50 PM EDT	Severe Thunderstorm Warning	PHI	Burlington	40 min
Jul 19, 5:01 PM EDT	Special Marine Warning	PHI		59 min
Jul 19, 5:26 PM EDT	Severe Thunderstorm Warning	PHI	Burlington	49 min
Jul 19, 5:44 PM EDT	Flash Flood Warning	PHI	Monmouth, Ocean	3 hr

Nearby

Flash Flood Warnings in New Jersey, 2002 Every flash flood warning in 2002

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.