Alert archive / Georgia / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 12, NWS Atlanta, GA

March 30, 2002DeKalb County, Henry County, Rockdale County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 30, 2002, 9:01 PM EST for DeKalb County, Henry County, Rockdale 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 outline as issued.

The facts

Issued: Mar 30, 2002, 9:01 PM EST (02:01 UTC)
Expired: Mar 30, 2002, 9:30 PM EST
In force: 29 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

Counties DeKalb County, GA, Henry County, GA, Rockdale County, GA

The radar

The Atlanta radar (KFFC), 51 km from the middle of the area, began a volume at 02:02 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, 2.0 hours before the alert went out and 45 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: 2693 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 707 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 230 m²/s²
Significant tornado parameter: 2.7
Supercell composite: 17.8

Open this sounding in Storm Lab

The text

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

090 
WUUS52 KFFC 310201
SVRATL
GAC089-151-247-310230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
900 PM EST SAT MAR 30 2002

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN DEKALB COUNTY IN NORTH CENTRAL GEORGIA
  NORTHERN HENRY COUNTY IN NORTH CENTRAL GEORGIA
  ROCKDALE COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 930 PM EST

* AT 856 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES SOUTHWEST OF PANTHERSVILLE...MOVING
  EAST AT 25 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...CONYERS... 
  LAKEVIEW ESTATES...LITHONIA...PANTHERSVILLE AND STOCKBRIDGE.

HAIL TO THE SIZE OF GOLF BALLS CAN BE EXPECTED IN THE WARNED AREA.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3365 8393 3353 8406 3354 8425 3359 8423
          3366 8433 3373 8432 3370 8393

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 8:40 PM EST	Severe Thunderstorm Warning	FFC	Clayton, Fulton	35 min
Mar 31, 1:58 PM EST	Severe Thunderstorm Warning	FFC	Cobb, Fulton	32 min
Mar 31, 2:09 PM EST	Severe Thunderstorm Warning	FFC	DeKalb	36 min
Mar 31, 2:21 PM EST	Severe Thunderstorm Warning	FFC	Gwinnett	24 min
Mar 31, 2:35 PM EST	Severe Thunderstorm Warning	FFC	Sumter	40 min
Mar 31, 3:05 PM EST	Severe Thunderstorm Warning	FFC	Dodge	25 min
Mar 31, 3:42 PM EST	Severe Thunderstorm Warning	FFC	Laurens	33 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2002 Every severe thunderstorm warning in 2002

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.