Alert archive / Georgia / Flash Flood Warnings in 2005

Flash Flood Warning 44, NWS Atlanta, GA

August 17, 2005Greene County, Georgia

NWS Atlanta, GA issued this flash flood warning at Aug 17, 2005, 10:35 PM EDT for Greene County, Georgia. 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 17, 2005, 10:35 PM EDT (02:35 UTC)
Expired
Aug 18, 2005, 1:30 AM EDT
In force
3 hr
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Greene County, GA

The radar

The Robins AFB radar (KJGX), 95 km from the middle of the area, began a volume at 02:37 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

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 2.6 hours before the alert went out and 123 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, Peachtre/Fal Fld, GA at 00:00Z on 2005-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 944 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, Peachtre/Fal Fld, GA at 00:00Z on 2005-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
944 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
1431 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
-11 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 KFFC 180243
FFWFFC
GAC133-180530-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1035 PM EDT WED AUG 17 2005

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GREENE COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 130 AM EDT

* AT 1030 PM EDT...RADAR INDICATED HEAVY RAINFALL IN SOUTHERN  
  PORTIONS OF GREENE COUNTY SOUTH OF GREENSBORO WITH OVER 3 INCHES 
  OF RAIN IN THE PAST HOUR. AN ADDITIONAL 1 TO 2 INCHES ARE 
  POSSIBLE  BEFORE RAINFALL TAPERS OFF. THE STORM WAS SLOWLY MOVING 
  TO THE SOUTH ABOUT AT 5 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  VEAZEY AND SILOAM.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

LAT...LON 3361 8326 3339 8328 3341 8315 3357 8299

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 18, 4:46 PM EDTSevere Thunderstorm WarningFFCClayton29 min
Aug 18, 5:05 PM EDTSevere Thunderstorm WarningFFCDeKalb25 min
Aug 18, 5:41 PM EDTSevere Thunderstorm WarningFFCHenry34 min
Aug 18, 7:44 PM EDTFlash Flood WarningFFCWhite3 hr

Nearby

Flash Flood Warnings in Georgia, 2005Every flash flood warning in 2005

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.