Alert archive / North Carolina / Flash Flood Warnings in 2002

Flash Flood Warning 9, NWS Raleigh, NC

July 5, 2002Johnston County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Jul 5, 2002, 9:54 PM EDT for Johnston County, North Carolina. 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
Jul 5, 2002, 9:54 PM EDT (01:54 UTC)
Expired
Jul 5, 2002, 11:45 PM EDT
In force
111 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Johnston County, NC

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 1.9 hours before the alert went out and 158 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, Newport, NC at 00:00Z on 2002-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1419 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Newport, NC at 00:00Z on 2002-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.1939Sfc1 km3 km6 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
1419 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
1219 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
58 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 
WGUS52 KRAH 060154
FFWRAH
NCC101-060345-

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

THE NATIONAL WEATHER SERVICE HAS ISSUED A

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

* UNTIL 1145 PM EDT

* AT 952 PM EDT.

* A LINE OF THUNDERSTORMS IS ALONG THE WAKE/JOHNSTON COUNTY LINE AT 
952 PM AND WILL MOVE OVER THE WARNED AREA... RESULTING IN EXCESSIVE 
RAINFALL ON ALREADY SOAKED ROADWAYS AND GROUND. 

$$
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, 8:23 PM EDTFlash Flood WarningRAHWake112 min
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

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.