Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 338, NWS Atlanta, GA

August 14, 2012Dooly County, Houston County, Pulaski County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 14, 2012, 4:34 PM EDT for Dooly County, Houston County, Pulaski County, Georgia. It was in force for 41 min. 1 report 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
Aug 14, 2012, 4:34 PM EDT (20:34 UTC)
Expired
Aug 14, 2012, 5:15 PM EDT
In force
41 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Dooly County, GA, Houston County, GA, Pulaski County, GA

The radar

The Robins AFB radar (KJGX), 45 km from the middle of the area, began a volume at 20:37 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

TimeReportWhereRemark
Aug 14, 4:40 PM EDTTSTM WND DMG4 S Perry, GAHOUSTON COUNTY EMA RELAYED A REPORT OF TWO TREES DOWN IN SOUTHERN HOUSTON COUNTY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.6 hours before the alert went out and 134 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 2012-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 546 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2012-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
546 J/kg
Mixed-layer CIN
-203 J/kg
Mixed-layer LCL
1220 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

541 
WUUS52 KFFC 142034
SVRFFC
GAC093-153-235-142115-
/O.NEW.KFFC.SV.W.0338.120814T2034Z-120814T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
434 PM EDT TUE AUG 14 2012

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN DOOLY COUNTY IN CENTRAL GEORGIA
  SOUTHERN HOUSTON COUNTY IN CENTRAL GEORGIA
  NORTHWESTERN PULASKI COUNTY IN CENTRAL GEORGIA

* UNTIL 515 PM EDT

* AT 432 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED NEAR
  UNADILLA...MOVING EAST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ELKO...GROVE PARK...GROVANIA...CLINCHFIELD...HAYNEVILLE...
  BROWNDALE...KLONDIKE AND SAND BED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU SEE WIND DAMAGE...HAIL OR FLOODING...WAIT UNTIL 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. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

&&

LAT...LON 3251 8353 3228 8349 3223 8382 3234 8384
      3241 8383
TIME...MOT...LOC 2034Z 250DEG 17KT 3234 8375

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 3:11 AM EDTSpecial Weather StatementFFCBartow, Carroll, Haralson, Heard, Paulding, Polk79 min
Aug 14, 8:50 AM EDTSpecial Weather StatementFFCCoweta, Fayette, Harris, Heard, Meriwether, Muscogee and 1 more25 min
Aug 14, 9:12 AM EDTSpecial Weather StatementFFCClayton, Fayette33 min
Aug 14, 9:14 AM EDTSpecial Weather StatementFFCTalbot31 min
Aug 14, 9:17 AM EDTSpecial Weather StatementFFCPolk28 min
Aug 14, 3:04 PM EDTSpecial Weather StatementFFCMarion41 min
Aug 14, 3:10 PM EDTSevere Thunderstorm WarningFFCMacon, Marion, Schley, Taylor50 min
Aug 14, 3:16 PM EDTSpecial Weather StatementFFCStewart44 min
Aug 14, 3:42 PM EDTSevere Thunderstorm WarningFFCBibb, Crawford, Macon, Peach, Taylor48 min
Aug 14, 4:21 PM EDTSevere Thunderstorm WarningFFCBibb, Crawford, Houston, Jones, Peach, Twiggs and 1 more39 min
Aug 14, 5:01 PM EDTSevere Thunderstorm WarningFFCBleckley, Houston, Laurens, Twiggs, Wilkinson29 min
Aug 14, 5:21 PM EDTSevere Thunderstorm WarningFFCBleckley, Johnson, Laurens, Twiggs, Washington, Wilkinson39 min
Aug 14, 5:46 PM EDTSevere Thunderstorm WarningFFCEmanuel, Glascock, Jefferson, Johnson, Laurens, Washington59 min
Aug 14, 6:25 PM EDTSevere Thunderstorm WarningFFCGlascock, Hancock, Jefferson, Warren, Washington35 min
Aug 14, 6:49 PM EDTSpecial Weather StatementFFCJefferson11 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.