Alert archive / Georgia / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 355, NWS Atlanta, GA

December 12, 1996Harris County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Dec 12, 1996, 5:31 PM EST for Harris County, Georgia. It was in force for 29 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
Dec 12, 1996, 5:31 PM EST (22:31 UTC)
Expired
Dec 12, 1996, 6:00 PM EST
In force
29 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Harris County, GA

The radar

The Atlanta radar (KFFC), 77 km from the middle of the area, began a volume at 22:33 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 12:00Z, 10.5 hours before the alert went out and 80 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 12:00Z on 1996-12-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 104 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, Peachtre/Fal Fld, GA at 12:00Z on 1996-12-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 square meters per square second.193958Sfc1 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
104 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
540 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KATL 122234 RRA
SVRATL
GAC145-122300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
531 PM EST THU DEC 12 1996
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL GEORGIA
 
   ...HARRIS COUNTY
 
NATIONAL WEATHER SERVICE RADAR INDICATES A SEVERE THUNDERSTORM 5 MILES
NORTHWEST OF HAMILTON MOVING TO THE EAST AT 30 MPH.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 12, 3:41 PM ESTSevere Thunderstorm WarningFFCHaralson, Polk64 min
Dec 12, 3:53 PM ESTSevere Thunderstorm WarningFFCCherokee, Dawson52 min
Dec 12, 5:11 PM ESTSevere Thunderstorm WarningFFCMeriwether34 min
Dec 12, 5:34 PM ESTSevere Thunderstorm WarningFFCLamar, Monroe, Upson41 min
Dec 12, 5:48 PM ESTSevere Thunderstorm WarningFFCHeard, Troup42 min
Dec 12, 6:15 PM ESTSevere Thunderstorm WarningFFCLamar, Pike, Upson60 min
Dec 12, 6:15 PM ESTSevere Thunderstorm WarningFFCMonroe60 min
Dec 12, 6:36 PM ESTSevere Thunderstorm WarningFFCJones39 min
Dec 12, 6:56 PM ESTSevere Thunderstorm WarningFFCBibb49 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1996Every severe thunderstorm warning in 1996

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.