Alert archive / Georgia / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 466, NWS Atlanta, GA

July 6, 1999Crisp County, Wilcox County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 6, 1999, 8:12 PM EDT for Crisp County, Wilcox County, Georgia. It was in force for 33 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 6, 1999, 8:12 PM EDT (00:12 UTC)
Expired
Jul 6, 1999, 8:45 PM EDT
In force
33 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Crisp County, GA, Wilcox County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.2 hours before the alert went out and 179 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 1999-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 109 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 1999-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
109 J/kg
Mixed-layer CIN
-203 J/kg
Mixed-layer LCL
1597 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
-7 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.

723 
WUUS1 KATL 070012 RRA
SVRATL
GAC081-315-070045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
812 PM EDT TUE JUL 6 1999

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CRISP COUNTY IN CENTRAL GEORGIA
  WILCOX COUNTY IN CENTRAL GEORGIA

* UNTIL 845 PM EDT

* AT 811 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR NEAR CORDELE...AND ANOTHER NEAR ABBEVILLE. MOVEMENT OF THE
  STORMS WAS SOUTHWEST LESS THAN 5 MPH.

* THESE STORMS WILL AFFECT CORDELE AND ABBEVILLE.

DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND DEADLY LIGHTNING
ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. IF YOU SEE DAMAGE OR
LARGE HAIL...CALL THE NATIONAL WEATHER SERVICE AT 770-486-1133 AT
EXTENSION 2 0 4.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 8:13 PM EDTSevere Thunderstorm WarningFFCHeard32 min
Jul 6, 8:46 PM EDTFlash Flood WarningFFCHeard3 hr
Jul 7, 3:58 PM EDTSevere Thunderstorm WarningFFCFannin32 min
Jul 7, 5:38 PM EDTSevere Thunderstorm WarningFFCHaralson32 min
Jul 7, 5:52 PM EDTSevere Thunderstorm WarningFFCForsyth33 min
Jul 7, 6:02 PM EDTSevere Thunderstorm WarningFFCDouglas, Paulding33 min
Jul 7, 6:09 PM EDTSevere Thunderstorm WarningFFCCobb31 min
Jul 7, 7:27 PM EDTSevere Thunderstorm WarningFFCHeard33 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1999Every severe thunderstorm warning in 1999

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.