Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

August 8, 2012Clarke County, Oconee County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 8, 2012, 6:01 PM EDT for Clarke County, Oconee County, Georgia. It was in force for 29 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 8, 2012, 6:01 PM EDT (22:01 UTC)
Expired: Aug 8, 2012, 6:30 PM EDT
In force: 29 min
Issued by: NWS Atlanta, GA

Counties Clarke County, GA, Oconee County, GA

The radar

The Atlanta radar (KFFC), 123 km from the middle of the area, began a volume at 22:01 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, 10.0 hours before the alert went out and 117 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: 713 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 744 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 5 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.

458 
WWUS82 KFFC 082201
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
601 PM EDT WED AUG 8 2012

GAZ036-037-082230-
601 PM EDT WED AUG 8 2012

...SIGNIFICANT WEATHER ADVISORY FOR PENNY SIZED HAIL AND 45 MPH WINDS
IN OCONEE AND CLARKE COUNTIES UNTIL 630 PM EDT...

AT 557 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR WATKINSVILLE...MOVING NORTHEAST AT 5 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PENNY SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 45 MPH AS IT MOVES ACROSS
OCONEE AND CLARKE COUNTIES THROUGH 630 PM EDT. SOME LOCATIONS IN THE
PATH OF THIS STORM INCLUDE SALEM...EASTVILLE...FARMINGTON...NORTH
HIGH SHOALS...BOGART...BISHOP...WATKINSVILLE...ROSE HILL...BEECHWOOD
HILLS...STATE BOTANICAL GARDEN OF GEORGIA...JAMES HOLLAND YOUTH
SPORTS COMPLEX...WESTGATE PARK...SANDY CREEK RECREATION AREA...
WINTERVILLE AND WHITEHALL. 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 3400 8326 3395 8328 3391 8324 3382 8330
      3379 8328 3374 8329 3370 8341 3372 8344
      3380 8349 3385 8357 3391 8363 3398 8352
      3400 8350 3399 8347 3404 8339
TIME...MOT...LOC 2202Z 244DEG 4KT 3386 8343

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 8:12 PM EDT	Flash Flood Warning	FFC	Banks, Jackson, Madison	2 hr
Aug 7, 8:58 PM EDT	Special Weather Statement	FFC	Jones, Monroe	62 min
Aug 8, 4:18 PM EDT	Special Weather Statement	FFC	White	27 min
Aug 8, 4:38 PM EDT	Special Weather Statement	FFC	White	37 min
Aug 8, 5:10 PM EDT	Special Weather Statement	FFC	Hall	35 min
Aug 8, 5:16 PM EDT	Severe Thunderstorm Warning	FFC	Banks, Hall	44 min
Aug 8, 5:31 PM EDT	Special Weather Statement	FFC	Jackson	29 min
Aug 8, 5:41 PM EDT	Special Weather Statement	FFC	White	79 min
Aug 8, 6:00 PM EDT	Special Weather Statement	FFC	Jackson	90 min
Aug 8, 6:05 PM EDT	Special Weather Statement	FFC	Hall	25 min
Aug 8, 6:16 PM EDT	Special Weather Statement	FFC	Bartow, Floyd	29 min
Aug 8, 6:27 PM EDT	Special Weather Statement	FFC	Clarke, Oconee	63 min
Aug 8, 6:30 PM EDT	Special Weather Statement	FFC	Whitfield	30 min
Aug 8, 6:34 PM EDT	Special Weather Statement	FFC	Hall	26 min
Aug 8, 6:47 PM EDT	Special Weather Statement	FFC	Barrow	28 min
Aug 8, 7:01 PM EDT	Special Weather Statement	FFC	Whitfield	29 min
Aug 8, 7:16 PM EDT	Special Weather Statement	FFC	Barrow, Gwinnett, Walton	29 min
Aug 8, 7:38 PM EDT	Special Weather Statement	FFC	Gordon	37 min
Aug 8, 7:41 PM EDT	Special Weather Statement	FFC	DeKalb, Gwinnett, Walton	34 min
Aug 8, 7:55 PM EDT	Special Weather Statement	FFC	Chattooga	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.