Alert archive / Georgia / Flash Flood Warnings in 2004

Flash Flood Warning 8, NWS Charleston, SC

August 12, 2004Candler County, Liberty County, Tattnall County, Georgia

NWS Charleston, SC issued this flash flood warning at Aug 12, 2004, 7:29 PM EDT for Candler County, Liberty County, Tattnall County, Georgia. It was in force for 26 days. 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 12, 2004, 7:29 PM EDT (23:29 UTC)
Expired
Sep 7, 2004, 10:30 PM EDT
In force
26 days
Issued by
NWS Charleston, SC
Area
Counties, with a storm outline in the text

Counties Candler County, GA, Liberty County, GA, Tattnall County, GA

The radar

The Charleston,SC radar (KCLX), 105 km from the middle of the area, began a volume at 23:29 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

Jacksonville, FL (KJAX), launched 12:00Z, 11.5 hours before the alert went out and 151 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, Jacksonville, FL at 12:00Z on 2004-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 877 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, Jacksonville, FL at 12:00Z on 2004-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
877 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KCHS 122330
FFWCHS
GAC179-130100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
729 PM EDT THU AUG 12 2004

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LIBERTY COUNTY IN SOUTHEAST GEORGIA...

* UNTIL 900 PM EDT

* AT 729 PM EDT...RADAR INDICATED VERY HEAVY RAIN OCCURRING ACROSS 
  LIBERTY COUNTY.  LAW ENFORCEMENT INDICATED THAT SOME ROADS WERE
  BEING CLOSED. THE HEAVY RAIN WILL CONTINUE THROUGH 830 PM.

* FLASH FLOODING WILL OCCUR IN AND AROUND...
  GUM BRANCH AND HINESVILLE...
  FORT STEWART...
  SUNBURY...

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
FOR HIGHER GROUND. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES.

TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024.

LAT...LON 3189 8181 3178 8164 3176 8127 3197 8164

$$
1 follow-up statement
000 
WGUS52 KCHS 080058
FFWCHS
GAC043-267-080230-
/X.NEW.KCHS.FF.W.0008.040908T0058Z-040908T0230Z/
/0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
858 PM EDT TUE SEP 7 2004

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  TATTNALL COUNTY IN SOUTHEAST GEORGIA...
  CANDLER COUNTY IN SOUTHEAST GEORGIA...

* UNTIL 1030 PM EDT

* AT 858 PM EDT...RADAR INDICATED VERY HEAVY RAIN CONTINUING FROM   
  REIDSVILLE TO METTER MOVING NORTH AT 30 MPH.

* FLASH FLOODING IS EXPECTED IN AND AROUND...
  MANASSAS AND REIDSVILLE...
  COLLINS...
  COBBTOWN...
  METTER...

EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE RAPID FLOODING OF
ROADWAYS...SMALL CREEKS AND STREAMS...LOW-LYING AREAS AND DITCHES.

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

TO REPORT SIGNIFICANT FLOODING...PLEASE CONTACT THE NATIONAL WEATHER
SERVICE IN CHARLESTON TOLL FREE AT 1-888-383-2024.

LAT...LON 3194 8220 3185 8203 3219 8203 3250 8198
      3254 8214

$$

24

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 12, 6:21 PM EDTTornado WarningCHSLiberty, Long24 min
Aug 12, 6:42 PM EDTTornado WarningCHSLiberty, Long, McIntosh33 min
Aug 12, 7:16 PM EDTTornado WarningCHSLiberty, McIntosh29 min
Aug 12, 7:35 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Liberty25 min
Aug 12, 7:41 PM EDTFlash Flood WarningCHSBryan, Chatham94 min
Aug 12, 7:59 PM EDTTornado WarningCHSBryan, Chatham31 min

Nearby

Flash Flood Warnings in Georgia, 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.