Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 335, NWS Atlanta, GA

June 20, 1997DeKalb County, Gwinnett County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 20, 1997, 9:15 PM EDT for DeKalb County, Gwinnett County, Georgia. It was in force for 30 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 20, 1997, 9:15 PM EDT (01:15 UTC)
Expired
Jun 20, 1997, 9:45 PM EDT
In force
30 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties DeKalb County, GA, Gwinnett County, GA

What was reported inside it

TimeReportWhereRemark
Jun 20, 9:20 PM EDTHail 0.75Norcross, GA
Jun 20, 9:34 PM EDTHail 0.9Dunwoody, GADime to nickel sized hail was reported.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.3 hours before the alert went out and 65 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 1997-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2432 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, Peachtre/Fal Fld, GA at 00:00Z on 1997-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
2432 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1335 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
6 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 210115 RRA
SVRATL
GAC089-135-210145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
915 PM EDT FRI JUN 20 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  945 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST GEORGIA
 
   ...NORTHERN DE KALB COUNTY...GWINNETT COUNTY
 
AT 911 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM NEAR NORCROSS MOVING SLOWLY NORTHEAST. THIS STORM WILL
AFFECT DULUTH WITHIN THE NEXT 15 MINUTES.
 
WHEN THUNDERSTORMS ARE OCCURRING...LIGHTNING POSES A SERIOUS DANGER.
STAY INDOORS AND AWAY FROM WINDOWS. DON'T USE TELEPHONES OR
ELECTRICAL APPLIANCES, UNLESS IN AN EMERGENCY. IF BOATING OR
SWIMMING...GET TO LAND QUICKLY AND FIND SHELTER. IF IN THE OPEN FIND
A LOW SPOT AWAY FROM TREES, FENCES, AND POLES.
 
IF YOU EXPERIENCE STORM DAMAGE TO STRUCTURES OR TREES...8OR HAIL THE
SIZE OF DIMES OR LARGER...PLEASE REPORT IT TO THE NATIONAL WEATHER
SERVICE BY CALLING 770-486-8535.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 8:23 PM EDTSevere Thunderstorm WarningFFCJones37 min
Jun 20, 8:28 PM EDTSevere Thunderstorm WarningFFCFayette32 min
Jun 20, 8:36 PM EDTSevere Thunderstorm WarningFFCHeard39 min
Jun 20, 8:48 PM EDTSevere Thunderstorm WarningFFCCoweta42 min
Jun 20, 9:01 PM EDTSevere Thunderstorm WarningFFCFayette29 min
Jun 20, 9:44 PM EDTSevere Thunderstorm WarningFFCDeKalb, Fulton31 min
Jun 20, 9:58 PM EDTSevere Thunderstorm WarningFFCWashington47 min
Jun 20, 10:01 PM EDTSevere Thunderstorm WarningFFCForsyth29 min
Jun 20, 10:05 PM EDTSevere Thunderstorm WarningFFCJefferson, Johnson40 min
Jun 20, 10:31 PM EDTSevere Thunderstorm WarningFFCForsyth, Fulton29 min
Jun 21, 1:51 PM EDTSevere Thunderstorm WarningFFCFannin39 min
Jun 21, 1:58 PM EDTSevere Thunderstorm WarningFFCWalker32 min
Jun 21, 2:22 PM EDTSevere Thunderstorm WarningFFCCarroll38 min
Jun 21, 3:41 PM EDTSevere Thunderstorm WarningFFCGwinnett34 min
Jun 21, 4:07 PM EDTSevere Thunderstorm WarningFFCHall, Jackson53 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.