Alert archive / Georgia / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 239, NWS Atlanta, GA

July 12, 2000Bibb County, Twiggs County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 12, 2000, 1:57 PM EDT for Bibb County, Twiggs County, Georgia. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jul 12, 2000, 1:57 PM EDT (17:57 UTC)
Expired: Jul 12, 2000, 2:30 PM EDT
In force: 33 min
Issued by: NWS Atlanta, GA
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Bibb County, GA, Twiggs County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.0 hours before the alert went out and 118 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: 778 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 1345 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 31 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 
WUUS52 KFFC 121758
SVRATL
GAC021-289-121830-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
157 PM EDT WED JUL 12 2000

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BIBB COUNTY IN CENTRAL GEORGIA
  NORTHERN TWIGGS COUNTY IN CENTRAL GEORGIA

* UNTIL 230 PM EDT

* AT 154 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES EAST OF MACON...MOVING SOUTHEAST AT 10
  MPH.

* OTHER LOCATIONS IN THIS WARNING INCLUDE HUBER...DRY BRANCH...AND 
  LANIER HEIGHTS.

LARGE HAIL...DAMAGING WINDS AND TORRENTIAL RAIN ARE EXPECTED WITH
THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER WHILE THE STORM
PASSES.

IF YOU SEE DAMAGE OR LARGE HAIL...CALL THE NATIONAL WEATHER SERVICE
AT 7 7 0 4 8 6 1 1 3 3 AT EXTENSION 2 0 4.

LAT...LON 3274 8332 3288 8341 3284 8350 3287 8356
          329S0 8369 3276 8371 3272 8356 3263 8338

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 8:51 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	39 min
Jul 12, 1:32 PM EDT	Severe Thunderstorm Warning	FFC	Clayton, Henry, Spalding	28 min
Jul 12, 1:32 PM EDT	Severe Thunderstorm Warning	FFC	Fayette	28 min
Jul 12, 2:04 PM EDT	Severe Thunderstorm Warning	FFC	Lamar, Monroe	26 min
Jul 12, 2:11 PM EDT	Severe Thunderstorm Warning	FFC	Butts, Henry, Spalding	34 min
Jul 12, 2:19 PM EDT	Severe Thunderstorm Warning	FFC	Laurens, Wilkinson	26 min
Jul 12, 2:27 PM EDT	Severe Thunderstorm Warning	FFC	Bibb, Twiggs	33 min
Jul 12, 3:20 PM EDT	Severe Thunderstorm Warning	FFC	Johnson, Laurens, Treutlen	40 min
Jul 12, 3:20 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel	40 min
Jul 12, 3:25 PM EDT	Severe Thunderstorm Warning	FFC	Dooly, Macon	50 min
Jul 12, 5:53 PM EDT	Severe Thunderstorm Warning	FFC	Walton	22 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2000 Every severe thunderstorm warning in 2000

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.