Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 261, NWS Atlanta, GA

May 27, 1997Johnson County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 27, 1997, 1:59 AM EDT for Johnson County, Georgia. It was in force for 31 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
May 27, 1997, 1:59 AM EDT (05:59 UTC)
Expired
May 27, 1997, 2:30 AM EDT
In force
31 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Johnson County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 6.0 hours before the alert went out and 187 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 1997-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1426 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 1997-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.193958Sfc1 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
1426 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1187 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
170 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

186 
WUUS1 KATL 270600 RRA
SVRATL
GAC167-270630-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
159 AM EDT TUE MAY 27 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  230 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL GEORGIA
 
   ...JOHNSON COUNTY
 
AT 200 AM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM IN NORTHEAST JOHNSON COUNTY MOVING SOUTHEAST AT 15 MPH.
 
IF YOU EXPERIENCE STORM DAMAGE TO STRUCTURES OR TREES...OR HAIL THE
SIZE OF DIMES OR LARGER...PLEASE REPORT IT TO THE NATIONAL WEATHER
SERVICE BY CALLING 770-486-8535.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DONT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 11:27 PM EDTSevere Thunderstorm WarningFFCJackson, Madison33 min
May 27, 2:45 AM EDTSevere Thunderstorm WarningFFCEmanuel15 min
May 27, 8:46 AM EDTSevere Thunderstorm WarningFFCClayton, DeKalb, Fulton44 min
May 27, 8:56 AM EDTSevere Thunderstorm WarningFFCHenry34 min
May 27, 9:34 AM EDTSevere Thunderstorm WarningFFCFulton26 min
May 27, 9:54 AM EDTSevere Thunderstorm WarningFFCFulton36 min
May 27, 11:11 AM EDTSevere Thunderstorm WarningFFCHouston, Peach49 min
May 27, 11:36 AM EDTSevere Thunderstorm WarningFFCCoweta39 min
May 27, 11:46 AM EDTSevere Thunderstorm WarningFFCTaylor29 min
May 27, 11:52 AM EDTSevere Thunderstorm WarningFFCCarroll, Haralson38 min
May 27, 12:03 PM EDTSevere Thunderstorm WarningFFCLamar, Pike, Upson27 min
May 27, 12:07 PM EDTSevere Thunderstorm WarningFFCMeriwether38 min
May 27, 12:13 PM EDTSevere Thunderstorm WarningFFCTaylor32 min
May 27, 12:26 PM EDTSevere Thunderstorm WarningFFCTelfair34 min
May 27, 12:52 PM EDTSevere Thunderstorm WarningFFCDouglas38 min
May 27, 12:56 PM EDTTornado WarningFFCUpson49 min
May 27, 2:08 PM EDTSevere Thunderstorm WarningFFCSumter52 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1997Every severe thunderstorm warning in 1997

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.