Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 394, NWS Atlanta, GA

July 17, 1997Douglas County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 17, 1997, 2:53 PM EDT for Douglas County, Georgia. It was in force for 37 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
Jul 17, 1997, 2:53 PM EDT (18:53 UTC)
Expired
Jul 17, 1997, 3:30 PM EDT
In force
37 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Douglas County, GA

The radar

The Atlanta radar (KFFC), 42 km from the middle of the area, began a volume at 18:56 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

Birmingham, AL (KBMX), launched 12:00Z, 6.9 hours before the alert went out and 195 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, Birmingham, AL at 12:00Z on 1997-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1821 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 1997-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.1939Sfc1 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
1821 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
957 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
-28 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 171855 RRA
SVRATL
GAC097-171930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
253 PM EDT THU JUL 17 1997
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  330 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST GEORGIA
 
   ...DOUGLAS COUNTY
 
AT 250 PM WEATHER RADAR INDICATED A SEVERE THUNDERSTORM NEAR
DOUGLASVILLE...NEARLY STATIOINARY.
 
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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 8:29 PM EDTSevere Thunderstorm WarningFFCHaralson, Paulding46 min
Jul 16, 9:24 PM EDTSevere Thunderstorm WarningFFCJasper36 min
Jul 16, 10:17 PM EDTSevere Thunderstorm WarningFFCWashington28 min
Jul 16, 11:30 PM EDTSevere Thunderstorm WarningFFCButts30 min
Jul 16, 11:55 PM EDTSevere Thunderstorm WarningFFCCoweta35 min
Jul 17, 12:05 AM EDTSevere Thunderstorm WarningFFCButts, Henry25 min
Jul 17, 12:41 AM EDTSevere Thunderstorm WarningFFCMonroe34 min
Jul 17, 5:06 AM EDTFlash Flood WarningFFCCoweta, Fayette2 hr
Jul 17, 3:37 PM EDTSevere Thunderstorm WarningFFCLaurens38 min
Jul 17, 4:33 PM EDTSevere Thunderstorm WarningFFCDooly27 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.