Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 101, NWS Atlanta, GA

April 19, 1997Hall County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 19, 1997, 8:01 PM EDT for Hall County, Georgia. It was in force for 44 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: Apr 19, 1997, 8:01 PM EDT (00:01 UTC)
Expired: Apr 19, 1997, 8:45 PM EDT
In force: 44 min
Issued by: NWS Atlanta, GA
Area: Whole counties

County Hall County, GA

The radar

The Atlanta radar (KFFC), 126 km from the middle of the area, began a volume at 00:05 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.0 hours before the alert went out and 123 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: 14 J/kg
Mixed-layer CIN: -145 J/kg
Mixed-layer LCL: 1917 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 164 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 200000 RRA
SVRATL
GAC139-200045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
801 PM EDT SAT APR 19 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  845 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST GEORGIA
 
   ...HALL COUNTY
 
AT 800 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM APPROACHING LAKE LANIER. THIS THUNDERSTORM WILL MOVE ACROSS
LAKE LANIER BETWEEN 800 PM AND 815 PM REACHING THE CANDLER AND
GAINESVILLE AREAS BY 820 PM EDT. THIS STORM HAS PRODUCED HAIL DURING THE
PAST HOUR ACROSS CHEROKEE AND FORSYTH COUNTIES. MOVEMENT IS TO THE EAST
SOUTHEAST AT 40 MPH.
 
 
 
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 BUSI8NESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 8:33 PM EDT	Severe Thunderstorm Warning	FFC	Catoosa, Whitfield	27 min
Apr 19, 8:40 PM EDT	Severe Thunderstorm Warning	FFC	Murray	35 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; radar from the NEXRAD Level II archive.