Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 197, NWS Atlanta, GA

May 2, 1997Cobb County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 2, 1997, 9:09 PM EDT for Cobb County, Georgia. It was in force for 21 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
May 2, 1997, 9:09 PM EDT (01:09 UTC)
Expired
May 2, 1997, 9:30 PM EDT
In force
21 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Cobb County, GA

The radar

The Atlanta radar (KFFC), 64 km from the middle of the area, began a volume at 01:13 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 2, 9:00 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.2 hours before the alert went out and 64 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 1997-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 888 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 1997-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
888 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1099 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
242 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KATL 030107 RRA
SVRATL
GAC067-030130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
909 PM EDT FRI MAY 2 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  930 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST GEORGIA
 
   ...COBB COUNTY
 
AT 900 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM NEAR MARIETTA. MOVEMENT OF THIS STORM IS TO THE NORTHEAST
AT 35 MPH.
 
 
A TORNADO WATCH IS ALSO IN EFFECT IN OR NEAR THE WARNED AREA.
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE
ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 2, 5:15 PM EDT, 3 hours 54 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
091>098-103>113-031200-

NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
515 PM EDT FRI MAY 2 1997

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR NORTH AND CENTRAL
GEORGIA TONIGHT AND EARLY SATURDAY.

A STRONG LOW PRESSURE SYSTEM OVER THE CENTRAL U.S. IS EXPECTED TO
MOVE EAST...PULLING A COLD FRONT ACROSS GEORGIA LATE TONIGHT AND
SATURDAY.

THUNDERSTORMS DEVELOPING ALONG AND AHEAD OF THE FRONT WILL MOVE
EAST...AFFECTING EXTREME NORTHWEST GEORGIA EARLY THIS EVENING THEN
SPREAD ACROSS THE REST OF NORTH AND AND CENTRAL GEORGIA LATER
TONIGHT. SOME OF THESE STORMS MAY BE SEVERE...PRODUCING DAMAGING WINDS
AND LARGE HAIL. ISLOLATED TORNADOES ARE ALSO POSSIBLE.

SPOTTERS GROUPS IN NORTH GEORGIA SHOULD ACTIVATE THEIR NETWORK AROUND
8 PM THIS EVENING. SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL
IN CENTRAL GEORGIA SHOULD MONITOR WEATHER DEVELOPEMENTS AND BE READY
FOR POSSIBLE ACTIVATION AFTER MIDNIGHT.

The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 8:08 PM EDTSevere Thunderstorm WarningFFCChattooga37 min
May 2, 8:26 PM EDTSevere Thunderstorm WarningFFCMurray34 min
May 2, 8:42 PM EDTSevere Thunderstorm WarningFFCFannin, Gilmer48 min
May 2, 8:44 PM EDTSevere Thunderstorm WarningFFCMurray, Whitfield46 min
May 2, 8:44 PM EDTSevere Thunderstorm WarningFFCWalker46 min
May 2, 8:56 PM EDTSevere Thunderstorm WarningFFCGordon34 min
May 2, 9:35 PM EDTSevere Thunderstorm WarningFFCGilmer, Murray25 min
May 2, 9:38 PM EDTSevere Thunderstorm WarningFFCChattooga, Walker52 min
May 2, 9:38 PM EDTSevere Thunderstorm WarningFFCDade52 min
May 2, 10:02 PM EDTSevere Thunderstorm WarningFFCCatoosa, Whitfield28 min
May 2, 10:13 PM EDTSevere Thunderstorm WarningFFCFloyd32 min
May 2, 10:15 PM EDTSevere Thunderstorm WarningFFCBartow, Gordon45 min
May 2, 10:34 PM EDTSevere Thunderstorm WarningFFCMurray26 min
May 2, 10:49 PM EDTSevere Thunderstorm WarningFFCGilmer, Pickens41 min
May 2, 11:08 PM EDTSevere Thunderstorm WarningFFCDawson, Fannin, Lumpkin37 min
May 2, 11:19 PM EDTSevere Thunderstorm WarningFFCUnion41 min
May 2, 11:30 PM EDTSevere Thunderstorm WarningFFCTowns, White30 min
May 3, 1:10 AM EDTFlash Flood WarningFFCGordon, Murray, Walker, Whitfield3 hr
May 3, 1:10 AM EDTFlash Flood WarningFFCChattooga, Floyd3 hr
May 3, 1:10 AM EDTFlash Flood WarningFFCGilmer, Pickens3 hr
May 3, 1:30 AM EDTSevere Thunderstorm WarningFFCChattooga45 min
May 3, 1:51 AM EDTSevere Thunderstorm WarningFFCFloyd39 min
May 3, 2:21 AM EDTSevere Thunderstorm WarningFFCBartow, Gordon39 min
May 3, 2:28 AM EDTSevere Thunderstorm WarningFFCPolk32 min
May 3, 2:33 AM EDTTornado WarningFFCPolk42 min
May 3, 2:42 AM EDTTornado WarningFFCBartow, Floyd33 min
May 3, 3:15 AM EDTSevere Thunderstorm WarningFFCCherokee30 min
May 3, 3:29 AM EDTSevere Thunderstorm WarningFFCDawson, Forsyth31 min
May 3, 5:05 AM EDTSevere Thunderstorm WarningFFCHaralson, Polk40 min
May 3, 6:08 AM EDTSevere Thunderstorm WarningFFCCobb, Paulding37 min
May 3, 6:32 AM EDTSevere Thunderstorm WarningFFCDeKalb, Fulton28 min
May 3, 6:55 AM EDTSevere Thunderstorm WarningFFCDeKalb, Gwinnett35 min
May 3, 7:12 AM EDTSevere Thunderstorm WarningFFCClayton, Henry33 min
May 3, 7:12 AM EDTSevere Thunderstorm WarningFFCRockdale33 min
May 3, 7:18 AM EDTSevere Thunderstorm WarningFFCNewton, Walton42 min
May 3, 7:46 AM EDTSevere Thunderstorm WarningFFCHenry, Newton, Rockdale44 min
May 3, 8:09 AM EDTSevere Thunderstorm WarningFFCMorgan, Oconee51 min
May 3, 8:17 AM EDTSevere Thunderstorm WarningFFCMeriwether, Pike, Spalding43 min
May 3, 8:24 AM EDTSevere Thunderstorm WarningFFCCoweta, Troup51 min
May 3, 8:36 AM EDTSevere Thunderstorm WarningFFCFayette54 min
May 3, 8:36 AM EDTSevere Thunderstorm WarningFFCMeriwether54 min
May 3, 8:52 AM EDTSevere Thunderstorm WarningFFCNewton53 min
May 3, 9:13 AM EDTSevere Thunderstorm WarningFFCButts, Henry, Newton47 min
May 3, 9:43 AM EDTSevere Thunderstorm WarningFFCHarris, Talbot32 min
May 3, 10:09 AM EDTSevere Thunderstorm WarningFFCJasper, Jones, Monroe36 min
May 3, 10:32 AM EDTSevere Thunderstorm WarningFFCCrawford, Peach38 min
May 3, 10:38 AM EDTSevere Thunderstorm WarningFFCMarion, Schley, Taylor37 min
May 3, 10:52 AM EDTSevere Thunderstorm WarningFFCBibb, Houston, Twiggs53 min
May 3, 11:12 AM EDTSevere Thunderstorm WarningFFCHouston33 min
May 3, 11:36 AM EDTSevere Thunderstorm WarningFFCJohnson, Washington39 min
May 3, 12:31 PM EDTSevere Thunderstorm WarningFFCDooly29 min
May 3, 2:08 PM EDTSevere Thunderstorm WarningFFCToombs37 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1997Every 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.