Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

August 9, 20124 counties in Georgia

NWS Atlanta, GA issued this special weather statement at Aug 9, 2012, 2:22 PM EDT for 4 counties in Georgia. It was in force for 23 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: Aug 9, 2012, 2:22 PM EDT (18:22 UTC)
Expired: Aug 9, 2012, 2:45 PM EDT
In force: 23 min
Issued by: NWS Atlanta, GA

Counties Johnson County, GA, Montgomery County, GA, Treutlen County, GA, Wilkinson County, GA

The radar

The Robins AFB radar (KJGX), 56 km from the middle of the area, began a volume at 18:21 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 12:00Z, 6.4 hours before the alert went out and 185 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: 2486 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 661 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

260 
WWUS82 KFFC 091822
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
222 PM EDT THU AUG 9 2012

GAZ074-083>086-097-098-112-113-091845-
222 PM EDT THU AUG 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR FREQUENT LIGHTNING IN
WASHINGTON...TWIGGS...TREUTLEN...TOOMBS...MONTGOMERY...LAURENS...
JOHNSON...WILKINSON AND EMANUEL COUNTIES UNTIL 245 PM EDT...

AT 218 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM GORDON TO HIGGSTON...MOVING NORTHEAST AT 10
MPH.

THESE STORMS HAVE THE POTENTIAL TO PRODUCE SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 35 MPH AS THEY MOVE
ACROSS WASHINGTON...TWIGGS...TREUTLEN...TOOMBS...MONTGOMERY...
LAURENS...JOHNSON...WILKINSON AND EMANUEL COUNTIES THROUGH 245 PM
EDT. SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE AILEY...
BARNHILL...LOWERY...HARLOW...DUDLEY...DUBLIN...MYRICKS MILL...MOUNT
VERNON...LOTHAIR...CHAPPELLS MILL...NICKLESVILLE...GORDON...
HIGGSTON...EAST DUBLIN AND KIBBEE. HEAVY DOWNPOURS WILL CAUSE PONDING
OF WATER ON ROADWAYS.

THESE WIND GUSTS MAY PRODUCE MINOR DAMAGE TO TREE LIMBS AND BLOW
LIGHT...UNSECURED OBJECTS AROUND.

&&

LAT...LON 3236 8224 3226 8222 3208 8250 3219 8263
      3230 8266 3231 8272 3229 8276 3257 8312
      3283 8350 3298 8319 3297 8317 3301 8314
      3295 8307 3305 8305 3242 8219
TIME...MOT...LOC 1822Z 237DEG 8KT 3283 8331 3263 8301
          3220 8248

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 8:30 PM EDT	Special Weather Statement	FFC	DeKalb	30 min
Aug 8, 8:31 PM EDT	Special Weather Statement	FFC	Chattooga	29 min
Aug 9, 11:21 AM EDT	Special Weather Statement	FFC	Haralson, Polk	39 min
Aug 9, 11:32 AM EDT	Special Weather Statement	FFC	Floyd	28 min
Aug 9, 11:59 AM EDT	Special Weather Statement	FFC	Chattooga, Floyd	46 min
Aug 9, 12:00 PM EDT	Special Weather Statement	FFC	Chattooga, Floyd, Polk	30 min
Aug 9, 12:23 PM EDT	Special Weather Statement	FFC	Bartow	37 min
Aug 9, 12:34 PM EDT	Special Weather Statement	FFC	Chattooga, Walker	26 min
Aug 9, 1:00 PM EDT	Special Weather Statement	FFC	Bartow, Catoosa, Dade, Gordon, Murray, Walker and 1 more	30 min
Aug 9, 1:03 PM EDT	Special Weather Statement	FFC	Gilmer	27 min
Aug 9, 1:04 PM EDT	Special Weather Statement	FFC	Heard	26 min
Aug 9, 1:09 PM EDT	Special Weather Statement	FFC	Wilkinson	36 min
Aug 9, 1:24 PM EDT	Special Weather Statement	FFC	Fannin, Gilmer	36 min
Aug 9, 1:41 PM EDT	Special Weather Statement	FFC	Carroll, Heard	34 min
Aug 9, 1:46 PM EDT	Special Weather Statement	FFC	Laurens, Montgomery, Treutlen, Wilkinson	29 min
Aug 9, 1:58 PM EDT	Special Weather Statement	FFC	Pickens	32 min
Aug 9, 2:25 PM EDT	Special Weather Statement	FFC	Coweta, Fayette	35 min
Aug 9, 2:27 PM EDT	Special Weather Statement	FFC	Heard, Troup	33 min
Aug 9, 2:43 PM EDT	Special Weather Statement	FFC	Coweta	32 min
Aug 9, 2:52 PM EDT	Special Weather Statement	FFC	Clayton	23 min
Aug 9, 2:58 PM EDT	Special Weather Statement	FFC	Heard, Troup	17 min
Aug 9, 3:00 PM EDT	Special Weather Statement	FFC	Banks, Dawson, Hall, Lumpkin	30 min
Aug 9, 3:13 PM EDT	Special Weather Statement	FFC	Pike, Spalding	32 min
Aug 9, 3:14 PM EDT	Special Weather Statement	FFC	Clayton, Coweta, DeKalb, Fayette, Meriwether, Troup	31 min
Aug 9, 3:19 PM EDT	Special Weather Statement	FFC	Dooly, Macon, Schley, Sumter	26 min
Aug 9, 3:29 PM EDT	Special Weather Statement	FFC	Putnam	31 min
Aug 9, 3:33 PM EDT	Special Weather Statement	FFC	Banks, Hall, Lumpkin, Towns, Union, White	27 min
Aug 9, 3:42 PM EDT	Special Weather Statement	FFC	Spalding	33 min
Aug 9, 3:48 PM EDT	Special Weather Statement	FFC	Bleckley, Houston, Macon, Pulaski	27 min
Aug 9, 3:52 PM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Pulaski	38 min
Aug 9, 4:09 PM EDT	Special Weather Statement	FFC	Jasper	36 min
Aug 9, 4:10 PM EDT	Special Weather Statement	FFC	Gwinnett	35 min
Aug 9, 4:12 PM EDT	Special Weather Statement	FFC	Dodge	33 min
Aug 9, 4:16 PM EDT	Special Weather Statement	FFC	Bleckley, Houston, Twiggs	29 min
Aug 9, 4:34 PM EDT	Special Weather Statement	FFC	Barrow, Dawson, Forsyth, Gwinnett, Hall, Walton	26 min
Aug 9, 4:38 PM EDT	Special Weather Statement	FFC	Bleckley, Dodge, Laurens, Twiggs, Wilkinson	37 min
Aug 9, 4:47 PM EDT	Special Weather Statement	FFC	Montgomery, Treutlen, Wheeler	28 min
Aug 9, 5:05 PM EDT	Special Weather Statement	FFC	Baldwin, Emanuel, Johnson, Jones, Laurens, Montgomery and 6 more	55 min
Aug 9, 5:08 PM EDT	Special Weather Statement	FFC	Oglethorpe, Wilkes	37 min
Aug 9, 5:31 PM EDT	Severe Thunderstorm Warning	FFC	Jasper, Jones, Monroe	44 min
Aug 9, 6:04 PM EDT	Special Weather Statement	FFC	Jones	86 min

Nearby

Special Weather Statements in Georgia, 2012 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.