Alert archive / Georgia / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 545, NWS Atlanta, GA

July 24, 1999Marion County, Schley County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 24, 1999, 8:03 PM EDT for Marion County, Schley County, Georgia. It was in force for 32 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 24, 1999, 8:03 PM EDT (00:03 UTC)
Expired
Jul 24, 1999, 8:35 PM EDT
In force
32 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Marion County, GA, Schley County, GA

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 0.1 hours before the alert went out and 212 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, Tallahassee Rgnl, FL at 00:00Z on 1999-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1740 joules per kilogram.LCLEL10008507005003002001001 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, Tallahassee Rgnl, FL at 00:00Z on 1999-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 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
1740 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1162 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
-4 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 
TTAA00 KATL 250005
SVRATL
GAC197-249-250035-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
803 PM EDT SAT JUL 24 1999

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN MARION COUNTY IN WEST CENTRAL GEORGIA
  SCHLEY COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 835 PM EDT

* AT 800 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR 4 MILES NORTHWEST OF WALLS CROSSING... MOVING EAST AT 5
  MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE...
   WALLS CROSSING...PUTNAM...CONCORD...AND MURRAYS CROSSROADS.


THIS THUNDERSTORM IS PRODUCING VERY HEAVY RAIN THAT MAY FLOOD
ROADS QUICKLY. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
IF YOU SEE FLOODING...LARGE HAIL OR WIND DAMAGE...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 24, 8:08 PM EDTSevere Thunderstorm WarningFFCBibb32 min
Jul 24, 8:13 PM EDTSevere Thunderstorm WarningFFCMacon32 min
Jul 24, 8:32 PM EDTSevere Thunderstorm WarningFFCHouston33 min
Jul 25, 6:03 PM EDTSevere Thunderstorm WarningFFCTalbot32 min
Jul 25, 6:14 PM EDTSevere Thunderstorm WarningFFCTaylor36 min
Jul 25, 6:45 PM EDTSevere Thunderstorm WarningFFCHarris, Talbot35 min
Jul 25, 6:48 PM EDTSevere Thunderstorm WarningFFCTaylor32 min
Jul 25, 7:01 PM EDTSevere Thunderstorm WarningFFCCrawford34 min
Jul 25, 7:31 PM EDTSevere Thunderstorm WarningFFCHarris, Talbot49 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.