Alert archive / Georgia / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 293, NWS Atlanta, GA

July 22, 2002Cobb County, Paulding County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 22, 2002, 8:31 PM EDT for Cobb County, Paulding County, Georgia. It was in force for 29 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 22, 2002, 8:31 PM EDT (00:31 UTC)
Expired: Jul 22, 2002, 9:00 PM EDT
In force: 29 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

Counties Cobb County, GA, Paulding County, GA

The radar

The Atlanta radar (KFFC), 61 km from the middle of the area, began a volume at 00:33 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.

What was reported inside it

Time	Report	Where	Remark
Jul 22, 8:34 PM EDT	Hail 1.75	Dallas, GA	The public reported dime to golf ball size hail.
Jul 22, 8:41 PM EDT	Hail 0.75	Powder Spgs, GA	A storm spotter reported dime size hail.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.5 hours before the alert went out and 62 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: 1487 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1357 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 34 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.

057 
WUUS52 KFFC 230031
SVRATL
GAC067-223-230100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
831 PM EDT MON JUL 22 2002

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN COBB COUNTY IN NORTH CENTRAL GEORGIA
  EASTERN PAULDING COUNTY IN NORTHWEST GEORGIA

* UNTIL 900 PM EDT

* AT 827 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER POWDER SPRINGS...MOVING WEST AT 5 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...DALLAS...
  HIRAM...KENNESAW AND POWDER SPRINGS.

HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH 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 3383 8457 3404 8460 3399 8491 3379 8493

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 8:06 PM EDT	Severe Thunderstorm Warning	FFC	Clayton, Fayette	24 min
Jul 23, 3:47 PM EDT	Severe Thunderstorm Warning	FFC	Towns	28 min
Jul 23, 4:09 PM EDT	Severe Thunderstorm Warning	FFC	Houston, Peach	36 min
Jul 23, 5:49 PM EDT	Severe Thunderstorm Warning	FFC	Fulton, Gwinnett	26 min
Jul 23, 5:55 PM EDT	Severe Thunderstorm Warning	FFC	Fayette	35 min
Jul 23, 6:04 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, Fulton	26 min
Jul 23, 6:07 PM EDT	Severe Thunderstorm Warning	FFC	Bartow	23 min
Jul 23, 6:22 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	23 min
Jul 23, 6:25 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Muscogee	35 min
Jul 23, 6:46 PM EDT	Severe Thunderstorm Warning	FFC	Cobb	29 min
Jul 23, 7:09 PM EDT	Severe Thunderstorm Warning	FFC	Spalding	21 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.