Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 141, NWS Atlanta, GA

May 31, 20124 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 31, 2012, 8:52 PM EDT for 4 counties in Georgia. It was in force for 38 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: May 31, 2012, 8:52 PM EDT (00:52 UTC)
Expired: May 31, 2012, 9:30 PM EDT
In force: 38 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Greene County, GA, Hancock County, GA, Putnam County, GA, Taliaferro County, GA

The radar

The Robins AFB radar (KJGX), 92 km from the middle of the area, began a volume at 00:53 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
May 31, 9:03 PM EDT	TSTM WND DMG	3 W Shoulderbone, GA	911 CENTER REPORTED 1 TREE DOWN NEAR THE PUTNAM-HANCOCK COUNTY LINE.
May 31, 9:23 PM EDT	TSTM WND DMG	White Plains, GA	911 CENTER REPORTED 1 TREE DOWN IN THE WHITE PLAINS AREA.

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 00:00Z, 0.9 hours before the alert went out and 132 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: 214 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 1904 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 78 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.

857 
WUUS52 KFFC 010052
SVRFFC
GAC133-141-237-265-010130-
/O.NEW.KFFC.SV.W.0141.120601T0052Z-120601T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
852 PM EDT THU MAY 31 2012

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL PUTNAM COUNTY IN CENTRAL GEORGIA
  EASTERN GREENE COUNTY IN EAST CENTRAL GEORGIA
  NORTHWESTERN HANCOCK COUNTY IN EAST CENTRAL GEORGIA
  SOUTHWESTERN TALIAFERRO COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 930 PM EDT

* AT 849 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 6 MILES
  SOUTHEAST OF REYNOLDS PLANTATION...MOVING NORTHEAST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WHITE
  PLAINS...SILOAM...CRAWFORDVILLE AND UNION POINT.

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 3366 8311 3355 8281 3318 8306 3330 8334
TIME...MOT...LOC 0051Z 208DEG 16KT 3338 8312

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 8:39 PM EDT	Special Weather Statement	FFC	Wilkinson	36 min
May 31, 8:43 PM EDT	Special Weather Statement	FFC	Greene, Taliaferro	32 min
May 31, 9:01 PM EDT	Special Weather Statement	FFC	Baldwin	44 min
May 31, 9:12 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Hancock, Jones, Putnam	48 min
May 31, 9:13 PM EDT	Special Weather Statement	FFC	Wilkinson	32 min
May 31, 9:36 PM EDT	Special Weather Statement	FFC	Hancock, Taliaferro, Warren	39 min
May 31, 9:48 PM EDT	Special Weather Statement	FFC	Washington	27 min
May 31, 10:09 PM EDT	Special Weather Statement	FFC	Glascock, Greene, Hancock, Oglethorpe, Taliaferro, Warren and 1 more	51 min
May 31, 10:17 PM EDT	Special Weather Statement	FFC	Barrow, Walton	43 min
May 31, 10:41 PM EDT	Special Weather Statement	FFC	Banks, Hall, Jackson	49 min
May 31, 10:56 PM EDT	Special Weather Statement	FFC	Lumpkin, Towns, Union, White	64 min
May 31, 11:16 PM EDT	Special Weather Statement	FFC	Lumpkin, Towns, Union, White	44 min
May 31, 11:24 PM EDT	Severe Thunderstorm Warning	FFC	Lumpkin, Towns, Union, White	36 min
Jun 1, 3:01 PM EDT	Special Weather Statement	FFC	Emanuel, Treutlen	44 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012 Every 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.