Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

December 20, 2012Pike County, Georgia

NWS Atlanta, GA issued this special weather statement at Dec 20, 2012, 2:01 PM EST for Pike 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: Dec 20, 2012, 2:01 PM EST (19:01 UTC)
Expired: Dec 20, 2012, 2:30 PM EST
In force: 29 min
Issued by: NWS Atlanta, GA

County Pike County, GA

The radar

The Atlanta radar (KFFC), 38 km from the middle of the area, began a volume at 19:00 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, 7.0 hours before the alert went out and 37 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2398 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 257 m²/s²
0-3 km storm-relative helicity: 408 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.

548 
WWUS82 KFFC 201901
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
201 PM EST THU DEC 20 2012

GAZ068-069-201930-
201 PM EST THU DEC 20 2012

...SIGNIFICANT WEATHER ADVISORY FOR 40 MPH WINDS IN PIKE AND THE 
WEST HALF OF UPSON COUNTIES UNTIL 230 PM EST...

AT 200 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
LINE OF SHOWERS WITH HEAVY RAIN FROM HOLLONVILLE TO 15 MILES WEST OF 
CREST...MOVING EAST AT 40 MPH.

WIND GUSTS OF 40 MPH ARE POSSIBLE AS THESE SHOWERS WITH HEAVY RAIN 
MOVE ACROSS PIKE COUNTY AND THE WEST HALF OF UPSON COUNTY THROUGH 
230 PM EST. SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE 
HOLLONVILLE... CONCORD...HILLTOP...MOLENA...LIFSEY SPRINGS... 
ZEBULON...CREST... HANNAHS MILL...SUNNYSIDE...THOMASTON...ATWATER 
AND MEANSVILLE.

&&

LAT...LON 3308 8452 3310 8453 3313 8451 3317 8451
      3319 8449 3317 8427 3302 8427 3286 8434
      3287 8448 3292 8453 3296 8452 3296 8453
      3297 8452 3304 8454
TIME...MOT...LOC 1859Z 270DEG 26KT 3320 8450 3303 8458
          3286 8470

$$

16

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 20, 12:55 PM EST	Special Weather Statement	FFC	Heard, Troup	50 min
Dec 20, 1:07 PM EST	Special Weather Statement	FFC	Harris, Muscogee	38 min
Dec 20, 1:13 PM EST	Special Weather Statement	FFC	Coweta, Meriwether	77 min
Dec 20, 1:27 PM EST	Special Weather Statement	FFC	Chattahoochee, Stewart	63 min
Dec 20, 1:29 PM EST	Special Weather Statement	FFC	Chattahoochee, Stewart	61 min
Dec 20, 1:43 PM EST	Special Weather Statement	FFC	Muscogee	32 min
Dec 20, 1:45 PM EST	Special Weather Statement	FFC	Fayette	30 min
Dec 20, 2:00 PM EST	Special Weather Statement	FFC	Talbot	45 min
Dec 20, 2:07 PM EST	Special Weather Statement	FFC	Marion	38 min
Dec 20, 2:17 PM EST	Special Weather Statement	FFC	Webster	43 min
Dec 20, 2:26 PM EST	Special Weather Statement	FFC	Lamar, Pike, Upson	34 min
Dec 20, 2:35 PM EST	Special Weather Statement	FFC	Macon, Schley, Sumter	55 min
Dec 20, 2:43 PM EST	Special Weather Statement	FFC	Crisp, Dooly	47 min
Dec 20, 2:47 PM EST	Special Weather Statement	FFC	Taylor	43 min
Dec 20, 3:29 PM EST	Special Weather Statement	FFC	Pulaski, Wilcox	31 min
Dec 20, 3:31 PM EST	Special Weather Statement	FFC	Crisp	29 min
Dec 20, 3:33 PM EST	Severe Thunderstorm Warning	FFC	Crisp	22 min
Dec 20, 3:42 PM EST	Special Weather Statement	FFC	Jones	33 min
Dec 20, 4:04 PM EST	Special Weather Statement	FFC	Dodge	26 min
Dec 20, 4:10 PM EST	River Flood Warning	FFC	Forsyth	7 hr

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.