Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

May 6, 2012Union County, Georgia

NWS Atlanta, GA issued this special weather statement at May 6, 2012, 7:20 PM EDT for Union County, Georgia. It was in force for 25 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: May 6, 2012, 7:20 PM EDT (23:20 UTC)
Expired: May 6, 2012, 7:45 PM EDT
In force: 25 min
Issued by: NWS Atlanta, GA

County Union County, GA

The radar

The Knoxville radar (KMRX), 155 km from the middle of the area, began a volume at 23:24 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, 11.3 hours before the alert went out and 173 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: 1435 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 1105 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -41 m²/s²
0-3 km storm-relative helicity: -30 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.

016 
WWUS82 KFFC 062320
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
720 PM EDT SUN MAY 6 2012

GAZ008-009-062345-
720 PM EDT SUN MAY 6 2012

...SIGNIFICANT WEATHER ADVISORY FOR DIME SIZED HAIL IN UNION AND
TOWNS COUNTIES UNTIL 745 PM EDT...

AT 719 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER GUMLOG...MOVING SOUTHWEST AT 10 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE DIME SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 40 MPH AS IT MOVES ACROSS
UNION AND TOWNS COUNTIES THROUGH 745 PM EDT. SOME LOCATIONS IN THE
PATH OF THIS STORM INCLUDE YOUNG HARRIS...ALEXANDERS MILL...GUMLOG...
JONES CREEK...BLAIRSVILLE...NOTTELY DAM AND IVY LOG. HEAVY DOWNPOURS
WILL CAUSE PONDING OF WATER ON ROADWAYS.

&&

LAT...LON 3497 8379 3472 8404 3478 8410 3480 8410
      3480 8413 3482 8415 3485 8414 3488 8411
      3495 8417 3499 8410 3499 8382
TIME...MOT...LOC 2320Z 046DEG 8KT 3497 8394

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 9:02 PM EDT	Special Weather Statement	FFC	Heard	28 min
May 6, 10:15 AM EDT	Special Weather Statement	FFC	Heard	30 min
May 6, 10:37 AM EDT	Severe Thunderstorm Warning	FFC	Heard	23 min
May 6, 11:04 AM EDT	Special Weather Statement	FFC	Troup	26 min
May 6, 11:59 AM EDT	Special Weather Statement	FFC	Harris	46 min
May 6, 12:12 PM EDT	Special Weather Statement	FFC	Chattahoochee, Muscogee	48 min
May 6, 12:23 PM EDT	Severe Thunderstorm Warning	FFC	Harris, Muscogee	37 min
May 6, 12:43 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Muscogee	32 min
May 6, 1:10 PM EDT	Special Weather Statement	FFC	Marion	50 min
May 6, 1:38 PM EDT	Severe Thunderstorm Warning	FFC	Stewart, Webster	52 min
May 6, 1:50 PM EDT	Severe Thunderstorm Warning	FFC	Marion, Schley	40 min
May 6, 6:17 PM EDT	Special Weather Statement	FFC	Polk	28 min
May 6, 6:19 PM EDT	Special Weather Statement	FFC	Pike	26 min
May 6, 6:26 PM EDT	Special Weather Statement	FFC	Pickens	34 min
May 6, 6:29 PM EDT	Special Weather Statement	FFC	Upson	31 min
May 6, 6:32 PM EDT	Special Weather Statement	FFC	Fulton	28 min
May 6, 6:34 PM EDT	Special Weather Statement	FFC	Walker	26 min
May 6, 6:38 PM EDT	Severe Thunderstorm Warning	FFC	Douglas, Fulton	52 min
May 6, 6:40 PM EDT	Special Weather Statement	FFC	Polk	35 min
May 6, 6:43 PM EDT	Special Weather Statement	FFC	Pike	32 min
May 6, 6:46 PM EDT	Severe Thunderstorm Warning	FFC	Pickens	44 min
May 6, 6:52 PM EDT	Special Weather Statement	FFC	Fayette	38 min
May 6, 6:55 PM EDT	Special Weather Statement	FFC	Cobb	35 min
May 6, 7:00 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee, Pickens	30 min
May 6, 7:07 PM EDT	Special Weather Statement	FFC	Upson	38 min
May 6, 7:18 PM EDT	Severe Thunderstorm Warning	FFC	Haralson, Polk	22 min
May 6, 7:19 PM EDT	Special Weather Statement	FFC	Crawford	26 min
May 6, 7:22 PM EDT	Special Weather Statement	FFC	Cherokee	38 min
May 6, 7:25 PM EDT	Special Weather Statement	FFC	Cobb	35 min
May 6, 7:32 PM EDT	Severe Thunderstorm Warning	FFC	Cobb	43 min
May 6, 7:37 PM EDT	Special Weather Statement	FFC	Union	38 min
May 6, 7:41 PM EDT	Severe Thunderstorm Warning	FFC	Meriwether, Pike, Upson	34 min
May 6, 7:51 PM EDT	Special Weather Statement	FFC	Peach	24 min
May 6, 7:55 PM EDT	Special Weather Statement	FFC	Cherokee	35 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.