Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 361, NWS Atlanta, GA

July 4, 1997Banks County, Jackson County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 4, 1997, 8:46 PM EDT for Banks County, Jackson County, Georgia. It was in force for 44 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: Jul 4, 1997, 8:46 PM EDT (00:46 UTC)
Expired: Jul 4, 1997, 9:30 PM EDT
In force: 44 min
Issued by: NWS Atlanta, GA
Area: Whole counties

Counties Banks County, GA, Jackson County, GA

The radar

The Atlanta radar (KFFC), 137 km from the middle of the area, began a volume at 00:46 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
Jul 4, 9:15 PM EDT	Thunderstorm Wind	Commerce, GA	Thunderstorm winds knocked down two large trees as well as a 100 foot by 20 foot wall.

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, 0.8 hours before the alert went out and 132 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: 3896 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1243 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 38 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KATL 050046 RRA
SVRATL
GAC011-157-050130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
846 PM EDT FRI JUL 4 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  930 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST GEORGIA
 
   ...BANKS COUNTY...JACKSON COUNTY
 
AT 845 PM WEATHER RADAR INDICATED A SEVERE THUNDERSTORM IN EXTREME EAST
HALL COUNTY. THIS PATH WILL TAKE THE STORM ACROSS HOMER AROUND 855 PM
AND JEFFERSON 9PM.
 
 
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 LARG^ER...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
Jul 4, 8:12 PM EDT	Severe Thunderstorm Warning	FFC	Towns, White	48 min
Jul 4, 8:12 PM EDT	Severe Thunderstorm Warning	FFC	Hall	48 min
Jul 5, 3:24 PM EDT	Severe Thunderstorm Warning	FFC	Webster	51 min
Jul 5, 3:37 PM EDT	Severe Thunderstorm Warning	FFC	Sumter	38 min
Jul 5, 4:06 PM EDT	Severe Thunderstorm Warning	FFC	Dooly	54 min
Jul 5, 4:51 PM EDT	Severe Thunderstorm Warning	FFC	Houston	54 min
Jul 5, 5:29 PM EDT	Severe Thunderstorm Warning	FFC	Treutlen	46 min
Jul 5, 6:16 PM EDT	Severe Thunderstorm Warning	FFC	Johnson	44 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.