Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 100, NWS Atlanta, GA

April 19, 1997Barrow County, Walton County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 19, 1997, 7:50 PM EDT for Barrow County, Walton County, Georgia. It was in force for 40 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: Apr 19, 1997, 7:50 PM EDT (23:50 UTC)
Expired: Apr 19, 1997, 8:30 PM EDT
In force: 40 min
Issued by: NWS Atlanta, GA
Area: Whole counties

Counties Barrow County, GA, Walton County, GA

The radar

The Atlanta radar (KFFC), 97 km from the middle of the area, began a volume at 23:53 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
Apr 19, 8:15 PM EDT	Thunderstorm Wind	Monroe, GA

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 12:00Z, 11.8 hours before the alert went out and 92 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1759 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 193 m²/s²
0-3 km storm-relative helicity: 214 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 192349 RRA
SVRATL
GAC013-297-200030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
750 PM EDT SAT APR 19 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST GEORGIA
 
   ...BARROW COUNTY...WALTON COUNTY
 
AT 748 PM WEATHER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES EAST OF
LAWRENCEVILLE MOVING INTO BARROW AND WALTON COUNTIES. THE STORMS WERE
MOVING EAST SOUTHEAST AT 35 MPH. THIS PATH WILL TAKE THE STOMR OVER
WINDER AND MONROE BY 800 PM. THIS STORM HAS BEEN ACCOMPANIED BY HAIL.
 
DAMAGING WIND...LARGE HAIL...VE.RY 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.
 
 
 
&

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 7:41 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee, Forsyth	64 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.