Alert archive / North Carolina / Flash Flood Warnings in 2004

Flash Flood Warning 40, NWS Raleigh, NC

August 30, 2004Person County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Aug 30, 2004, 1:16 PM EDT for Person County, North Carolina. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 30, 2004, 1:16 PM EDT (17:16 UTC)
Expired
Aug 30, 2004, 4:30 PM EDT
In force
3 hr
Issued by
NWS Raleigh, NC
Area
Counties, with a storm outline in the text

County Person County, NC

The radar

The Raleigh/Durham radar (KRAX), 93 km from the middle of the area, began a volume at 17:19 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 5.3 hours before the alert went out and 94 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, Greensboro/Hi Pt, NC at 12:00Z on 2004-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 96 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2004-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -85 square meters per square second.193958Sfc1 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
96 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
623 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-85 m²/s²
0-3 km storm-relative helicity
-10 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 301723
FFWRAH
NCC145-302030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
116 PM EDT MON AUG 30 2004

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  PERSON COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 430 PM EDT

* AT 116 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   A 
BAND OF HEAVY RAIN EXTENDING FROM ROXBORO...PEEPS STORE AND BETHEL 
HILL NORTH TO SOUTH BOSTON AND CHESTER VIRGINIA. THIS LARGE BAND OF 
HEAVY RAIN WILL MOVE SOUTH ACROSS MOST OF PERSON COUNTY THROUGH 3 
PM. UP TO 3 INCHES OF RAIN HAS BEEN REPORTED IN ROXBORO WITH OVER A 
DOZEN ROADS CLOSED COUNTYWIDE. MILL CREEK NORTHEAST OF ROXBORO IS 
OUT OF ITS BANKS AND FLOODING SEVERAL ROADS. OTHER CREEKS SUCH AS 
CROOKED CREEK AND MARLOWES CREEK WILL LIKELY EXPERIENCE FLOODING. 

* SLOW MOVING THUNDERSTORMS WILL PRODUCE FLOODING AROUND...
  CONCORD...
  CUNNINGHAM...
  GORDONTON...
  PEEDS STORE...
  ROXBORO...
  SURL...
  WOODSDALE...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER IS USUALLY DEEPER
THAN IT APPEARS. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO
SWEEP MOST VEHICLES OFF THE ROAD. NEVER DRIVE AROUND BARRICADES 
WHERE ROADS HAVE BEEN CLOSED BY FLOOD WATERS. DO NOT DROWN...TURN 
AROUND. 

LAT...LON 3654 7879 3624 7881 3624 7915 3655 7914

$$

04

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 2:12 AM EDTFlash Flood WarningRAHHoke2 hr
Aug 30, 6:01 AM EDTFlash Flood WarningRAHDurham, Johnston, Wake3 hr
Aug 30, 6:23 AM EDTFlash Flood WarningRAHChatham3 hr
Aug 30, 11:10 AM EDTFlash Flood WarningRAHPerson2 hr

Nearby

Flash Flood Warnings in North Carolina, 2004Every flash flood warning in 2004

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.