Alert archive / Georgia / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 219, NWS Atlanta, GA

August 20, 1993Chattooga County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 20, 1993, 5:19 PM EDT for Chattooga County, Georgia. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Aug 20, 1993, 5:19 PM EDT (21:19 UTC)
Expired
Aug 20, 1993, 5:45 PM EDT
In force
26 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Chattooga County, GA

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 9.3 hours before the alert went out and 197 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, Athens Municipal, GA at 12:00Z on 1993-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1126 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, Athens Municipal, GA at 12:00Z on 1993-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
1126 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
831 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
34 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 202119
SVRATL
GAC055-202145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTA GA
519 PM EDT FRI AUG 20 1993
 
THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  545 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST GEORGIA
 
   ...CHATTOOGA COUNTY
 
AT 515 PM EDT RADAR SHOWED A SEVERE THUNDERSTORM NEAR CLOUDLAND
IN CHATOOGA COUNTY. THIS STORM WAS MOVING SOUTHEAST AT 20 MPH.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM W8INDOWS UNTIL THE STORM HAS PASSED.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 20, 6:21 PM EDTSevere Thunderstorm WarningFFCFannin, Gilmer, Murray69 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1993Every severe thunderstorm warning in 1993

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.