Alert archive / Delaware / Flash Flood Warnings in 2002

Flash Flood Warning 38, NWS Philadelphia/Mount Holly

December 13, 2002New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this flash flood warning at Dec 13, 2002, 10:54 PM EST for New Castle County, Delaware. It was in force for 111 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 13, 2002, 10:54 PM EST (03:54 UTC)
Expired
Dec 14, 2002, 12:45 AM EST
In force
111 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County New Castle County, DE

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 3.9 hours before the alert went out and 167 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, Washington/Dulle, VA at 00:00Z on 2002-12-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2002-12-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 287 square meters per square second.1939587897117Sfc1 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
439 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
287 m²/s²
0-3 km storm-relative helicity
989 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 
WGUS51 KPHI 140354
FFWPHI
DEC003-140545-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1049 PM EST FRI DEC 13 2002

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LOWER CHRISTINA WATERSHED IN NORTHERN NEW CASTLE COUNTY
  IN NORTHERN DELAWARE

* UNTIL 1245 AM EST.

* AT 1045 PM EST...THE GAGE ON THE CHRISTINA RIVER AT COOCHES 
  BRIDGE WAS 8.9 FEET AND RISING. FLOOD STAGE IS 9.0 FT.
  A CREST OF BETWEEN 9 AND 9.5 FEET IS EXPECTED BETWEEN
  11PM AND MIDNIGHT.

DO NOT DRIVE THROUGH FLOODED ROADWAYS...THE WATER MAY BE DEEPER
THAN YOU THINK.

$$

LAT...LON 3959 7576 3948 7565 3975 7553 3980 7570

Nearby

Flash Flood Warnings in Delaware, 2002Every 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.