Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 482, NWS Atlanta, GA

September 10, 1997Walton County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Sep 10, 1997, 10:17 PM EDT for Walton County, Georgia. It was in force for 28 min. 1 report 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: Sep 10, 1997, 10:17 PM EDT (02:17 UTC)
Expired: Sep 10, 1997, 10:45 PM EDT
In force: 28 min
Issued by: NWS Atlanta, GA
Area: Whole counties

County Walton County, GA

The radar

The Atlanta radar (KFFC), 90 km from the middle of the area, began a volume at 02:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Sep 10, 10:22 PM EDT	Hail 1	Social Circle, GA	Dime to quarter 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, 2.3 hours before the alert went out and 84 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: 914 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 1127 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 45 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 110220 RRA
SVRATL
GAC297-110245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1017 PM EDT WED SEP 10 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1045 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST GEORGIA
 
   ...WALTON COUNTY
 
AT 1015 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM ON HIGHWAY 11 ABOUT 7 MILES NORTH OF SOCIAL CIRCLE. THE
STORM WAS MOVING NORTHEAST AT 10 MPH. HAIL THE SIZE OF QUARTERS AND HALF
DOLLARS HAS BEEN REPORTED WITH THIS STORM IN WALTON COUNTY.
 
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
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
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.
 
WRS
 
&

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 10, 8:01 PM EDT	Severe Thunderstorm Warning	FFC	Floyd	29 min
Sep 10, 8:22 PM EDT	Severe Thunderstorm Warning	FFC	Fannin, Gilmer	38 min
Sep 10, 8:57 PM EDT	Severe Thunderstorm Warning	FFC	Fayette	33 min
Sep 10, 9:08 PM EDT	Severe Thunderstorm Warning	FFC	Gilmer, Murray	37 min
Sep 10, 9:50 PM EDT	Severe Thunderstorm Warning	FFC	Newton, Walton	25 min
Sep 10, 10:22 PM EDT	Severe Thunderstorm Warning	FFC	Hancock	38 min
Sep 10, 11:17 PM EDT	Severe Thunderstorm Warning	FFC	Warren	28 min
Sep 11, 3:50 AM EDT	Severe Thunderstorm Warning	FFC	Fulton	40 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.