Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 339, NWS Atlanta, GA

June 20, 1997Jefferson County, Johnson County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 20, 1997, 10:05 PM EDT for Jefferson County, Johnson County, Georgia. It was in force for 40 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: Jun 20, 1997, 10:05 PM EDT (02:05 UTC)
Expired: Jun 20, 1997, 10:45 PM EDT
In force: 40 min
Issued by: NWS Atlanta, GA
Area: Whole counties

Counties Jefferson County, GA, Johnson County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 2.1 hours before the alert went out and 191 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

079 
WUUS1 KATL 210206 RRA
SVRATL
GAC163-167-210245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1005 PM EDT FRI JUN 20 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1045 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL GEORGIA
 
   ...JEFFERSON COUNTY...EASTERN JOHNSON COUNTY
 
AT 1003 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM NEAR KITE DRIFTING SLOWLY NORTH. THIS STORM WILL LIKELY
PRODUCE LARGE HAIL.
 
DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING
ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM
WINDOWS UNTIL THE STORM HAS PASSED. BOATERS, GOLFERS, AND OTHERS
INVOLVED IN OUTSIDE ACTIVITIES SHOULD SEEK SHELTER IMMEDIATELY.
 
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.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 8:23 PM EDT	Severe Thunderstorm Warning	FFC	Jones	37 min
Jun 20, 8:28 PM EDT	Severe Thunderstorm Warning	FFC	Fayette	32 min
Jun 20, 8:36 PM EDT	Severe Thunderstorm Warning	FFC	Heard	39 min
Jun 20, 8:48 PM EDT	Severe Thunderstorm Warning	FFC	Coweta	42 min
Jun 20, 9:01 PM EDT	Severe Thunderstorm Warning	FFC	Fayette	29 min
Jun 20, 9:15 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Gwinnett	30 min
Jun 20, 9:44 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Fulton	31 min
Jun 20, 9:58 PM EDT	Severe Thunderstorm Warning	FFC	Washington	47 min
Jun 20, 10:01 PM EDT	Severe Thunderstorm Warning	FFC	Forsyth	29 min
Jun 20, 10:31 PM EDT	Severe Thunderstorm Warning	FFC	Forsyth, Fulton	29 min
Jun 21, 1:51 PM EDT	Severe Thunderstorm Warning	FFC	Fannin	39 min
Jun 21, 1:58 PM EDT	Severe Thunderstorm Warning	FFC	Walker	32 min
Jun 21, 2:22 PM EDT	Severe Thunderstorm Warning	FFC	Carroll	38 min
Jun 21, 3:41 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	34 min
Jun 21, 4:07 PM EDT	Severe Thunderstorm Warning	FFC	Hall, Jackson	53 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1997 Every 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.