Alert archive / North Carolina / Flash Flood Warnings in 2002

Flash Flood Warning 7, NWS Raleigh, NC

July 5, 2002Wake County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Jul 5, 2002, 8:23 PM EDT for Wake County, North Carolina. It was in force for 112 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
Jul 5, 2002, 8:23 PM EDT (00:23 UTC)
Expired
Jul 5, 2002, 10:15 PM EDT
In force
112 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Wake County, NC

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 0.4 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, Roanoke, VA at 00:00Z on 2002-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 637 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, Roanoke, VA at 00:00Z on 2002-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 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
637 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
1690 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KRAH 060023
FFWRAH
NCC183-060215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
822 PM EDT FRI JUL 5 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WAKE COUNTY IN NORTH CAROLINA

* UNTIL 1015 PM EDT

* AT 822 PM EDT THE PUBLIC REPORTED FLASH FLOODING IN THE SOUTHERN   
  WAKE COUNTY NEAR HOLLY SPRINGS.

* THUNDERSTORMS ARE CONTINUOUSLY REDEVELOPING OVER THE WARNED AREA...
  RESULTING IN EXCESSIVE RAINFALL.

$$
JWC

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 8:15 PM EDTFlash Flood WarningRAHEdgecombe2 hr
Jul 5, 8:26 PM EDTSevere Thunderstorm WarningRAHChatham, Wake34 min
Jul 5, 8:45 PM EDTSevere Thunderstorm WarningRAHHarnett45 min
Jul 5, 8:59 PM EDTFlash Flood WarningRAHWilson61 min
Jul 5, 9:40 PM EDTSevere Thunderstorm WarningRAHJohnston, Wake35 min
Jul 5, 9:54 PM EDTFlash Flood WarningRAHJohnston111 min

Nearby

Flash Flood Warnings in North Carolina, 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.