Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

July 9, 2012Oconee County, Walton County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 9, 2012, 6:13 PM EDT for Oconee County, Walton County, Georgia. It was in force for 32 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: Jul 9, 2012, 6:13 PM EDT (22:13 UTC)
Expired: Jul 9, 2012, 6:45 PM EDT
In force: 32 min
Issued by: NWS Atlanta, GA

Counties Oconee County, GA, Walton County, GA

The radar

The Atlanta radar (KFFC), 117 km from the middle of the area, began a volume at 22:16 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, 10.2 hours before the alert went out and 112 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: 1537 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 787 m above ground
0-6 km bulk shear: 1 kt
0-1 km storm-relative helicity: -42 m²/s²
0-3 km storm-relative helicity: -32 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.

783 
WWUS82 KFFC 092213
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
613 PM EDT MON JUL 9 2012

GAZ035-037-047-049-092245-
613 PM EDT MON JUL 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR DIME SIZED HAIL AND 40 MPH WINDS
IN WALTON...OCONEE...MORGAN AND BARROW COUNTIES UNTIL 645 PM EDT...

AT 611 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER MOUNT VERNON...MOVING EAST AT 5 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
WALTON...OCONEE...MORGAN AND BARROW COUNTIES THROUGH 645 PM EDT. SOME
LOCATIONS IN THE PATH OF THIS STORM INCLUDE MOUNT VERNON...
EBENEZER...PANNELL...MONROE...GRATIS...CAMPTON...GOOD HOPE...
EASTVILLE...NORTH HIGH SHOALS...BOGART...BISHOP...WATKINSVILLE AND
STATHAM. HEAVY DOWNPOURS WILL CAUSE PONDING OF WATER ON ROADWAYS.

&&

LAT...LON 3401 8355 3398 8355 3393 8351 3393 8342
      3387 8336 3387 8334 3386 8332 3385 8328
      3384 8328 3369 8363 3381 8379 3404 8361
TIME...MOT...LOC 2213Z 256DEG 5KT 3381 8364

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 8:53 PM EDT	Severe Thunderstorm Warning	FFC	Towns	52 min
Jul 9, 2:09 PM EDT	Special Weather Statement	FFC	Murray	36 min
Jul 9, 4:02 PM EDT	Special Weather Statement	FFC	Lumpkin	28 min
Jul 9, 4:09 PM EDT	Special Weather Statement	FFC	Henry, Rockdale	36 min
Jul 9, 4:31 PM EDT	Special Weather Statement	FFC	Bibb	44 min
Jul 9, 4:53 PM EDT	Special Weather Statement	FFC	Jones	37 min
Jul 9, 5:03 PM EDT	Special Weather Statement	FFC	Newton, Rockdale	27 min
Jul 9, 5:05 PM EDT	Special Weather Statement	FFC	Oconee	40 min
Jul 9, 5:16 PM EDT	Special Weather Statement	FFC	Morgan	29 min
Jul 9, 5:22 PM EDT	Special Weather Statement	FFC	Wilkinson	38 min
Jul 9, 5:30 PM EDT	Special Weather Statement	FFC	Twiggs	30 min
Jul 9, 5:38 PM EDT	Special Weather Statement	FFC	Walton	37 min
Jul 9, 5:57 PM EDT	Special Weather Statement	FFC	Greene	33 min
Jul 9, 6:12 PM EDT	Special Weather Statement	FFC	Wilkinson	33 min
Jul 9, 6:19 PM EDT	Special Weather Statement	FFC	Newton	26 min
Jul 9, 6:22 PM EDT	Severe Thunderstorm Warning	FFC	Barrow, Morgan, Oconee, Walton	53 min
Jul 9, 6:26 PM EDT	Severe Thunderstorm Warning	FFC	Jasper, Morgan, Newton	49 min
Jul 9, 6:31 PM EDT	Special Weather Statement	FFC	Hancock, Taliaferro, Warren	29 min
Jul 9, 6:35 PM EDT	Severe Thunderstorm Warning	FFC	Hancock, Warren	40 min
Jul 9, 6:37 PM EDT	Special Weather Statement	FFC	Laurens	38 min
Jul 9, 6:41 PM EDT	Special Weather Statement	FFC	Crisp	34 min
Jul 9, 6:42 PM EDT	Special Weather Statement	FFC	Sumter	33 min
Jul 9, 6:54 PM EDT	Severe Thunderstorm Warning	FFC	Sumter, Webster	38 min
Jul 9, 7:02 PM EDT	Special Weather Statement	FFC	Clarke	28 min
Jul 9, 7:05 PM EDT	Special Weather Statement	FFC	Fulton	25 min
Jul 9, 7:06 PM EDT	Special Weather Statement	FFC	Warren	24 min
Jul 9, 7:11 PM EDT	Special Weather Statement	FFC	Madison	34 min
Jul 9, 7:14 PM EDT	Special Weather Statement	FFC	Hancock	31 min
Jul 9, 7:20 PM EDT	Severe Thunderstorm Warning	FFC	Hancock, Washington	25 min
Jul 9, 7:32 PM EDT	Special Weather Statement	FFC	Fulton	28 min
Jul 9, 7:45 PM EDT	Special Weather Statement	FFC	Haralson	30 min
Jul 9, 7:50 PM EDT	Special Weather Statement	FFC	Butts	25 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.