Alert archive / Georgia / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 509, NWS Atlanta, GA

July 23, 1999Dodge County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 23, 1999, 9:15 PM EDT for Dodge County, Georgia. It was in force for 35 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 23, 1999, 9:15 PM EDT (01:15 UTC)
Expired
Jul 23, 1999, 9:50 PM EDT
In force
35 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Dodge County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.3 hours before the alert went out and 182 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 1999-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1276 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 1999-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
1276 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
1775 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
35 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.

852 
WUUS1 KATL 240115 RRA
SVRATL
GAC091-240150-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
915 PM EDT FRI JUL 23 1999

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DODGE COUNTY IN CENTRAL GEORGIA

* UNTIL 950 PM EDT

* AT 914 PM... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  IN THE VICINITY OF RHINE... MOVING NORTHWEST AT 5 MPH.

* THIS STORM WILL REMAIN OVER RURAL AREAS.

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 23, 9:00 PM EDTSevere Thunderstorm WarningFFCCrisp20 min
Jul 23, 9:08 PM EDTSevere Thunderstorm WarningFFCWilcox17 min
Jul 23, 9:22 PM EDTSevere Thunderstorm WarningFFCCrisp18 min
Jul 24, 2:56 PM EDTSevere Thunderstorm WarningFFCWhitfield34 min
Jul 24, 3:01 PM EDTSevere Thunderstorm WarningFFCHarris, Troup34 min
Jul 24, 3:30 PM EDTSevere Thunderstorm WarningFFCForsyth, Fulton, Gwinnett35 min
Jul 24, 3:47 PM EDTSevere Thunderstorm WarningFFCCobb33 min
Jul 24, 3:56 PM EDTSevere Thunderstorm WarningFFCPolk34 min
Jul 24, 4:04 PM EDTSevere Thunderstorm WarningFFCBartow31 min
Jul 24, 4:09 PM EDTSevere Thunderstorm WarningFFCFulton36 min
Jul 24, 4:18 PM EDTSevere Thunderstorm WarningFFCCobb32 min
Jul 24, 4:25 PM EDTSevere Thunderstorm WarningFFCPolk50 min
Jul 24, 4:29 PM EDTSevere Thunderstorm WarningFFCGreene, Oconee36 min
Jul 24, 4:32 PM EDTSevere Thunderstorm WarningFFCGwinnett48 min
Jul 24, 4:34 PM EDTSevere Thunderstorm WarningFFCForsyth51 min
Jul 24, 4:37 PM EDTSevere Thunderstorm WarningFFCHeard48 min
Jul 24, 4:39 PM EDTSevere Thunderstorm WarningFFCFayette36 min
Jul 24, 4:44 PM EDTSevere Thunderstorm WarningFFCOglethorpe51 min
Jul 24, 4:59 PM EDTSevere Thunderstorm WarningFFCClarke46 min
Jul 24, 5:02 PM EDTSevere Thunderstorm WarningFFCClayton48 min
Jul 24, 5:06 PM EDTSevere Thunderstorm WarningFFCForsyth, Fulton49 min
Jul 24, 5:10 PM EDTSevere Thunderstorm WarningFFCNewton50 min
Jul 24, 5:12 PM EDTSevere Thunderstorm WarningFFCCarroll48 min
Jul 24, 5:16 PM EDTSevere Thunderstorm WarningFFCCoweta49 min
Jul 24, 5:20 PM EDTSevere Thunderstorm WarningFFCHenry50 min
Jul 24, 5:21 PM EDTSevere Thunderstorm WarningFFCRockdale49 min
Jul 24, 5:29 PM EDTSevere Thunderstorm WarningFFCDeKalb31 min
Jul 24, 5:42 PM EDTSevere Thunderstorm WarningFFCFulton48 min
Jul 24, 5:51 PM EDTSevere Thunderstorm WarningFFCButts49 min
Jul 24, 5:53 PM EDTSevere Thunderstorm WarningFFCFayette47 min
Jul 24, 6:02 PM EDTSevere Thunderstorm WarningFFCNewton, Rockdale48 min
Jul 24, 6:11 PM EDTSevere Thunderstorm WarningFFCMonroe49 min
Jul 24, 6:18 PM EDTSevere Thunderstorm WarningFFCClayton47 min
Jul 24, 6:21 PM EDTSevere Thunderstorm WarningFFCJasper49 min
Jul 24, 6:23 PM EDTSevere Thunderstorm WarningFFCGreene47 min
Jul 24, 6:32 PM EDTSevere Thunderstorm WarningFFCMorgan48 min
Jul 24, 6:44 PM EDTSevere Thunderstorm WarningFFCButts36 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.