Alert archive / Georgia / Special Weather Statements in 2011

Special Weather Statement, NWS Atlanta, GA

August 6, 2011Spalding County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 6, 2011, 4:01 PM EDT for Spalding 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 6, 2011, 4:01 PM EDT (20:01 UTC)
Expired: Aug 6, 2011, 4:30 PM EDT
In force: 29 min
Issued by: NWS Atlanta, GA

County Spalding County, GA

The radar

The Atlanta radar (KFFC), 23 km from the middle of the area, began a volume at 20:01 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, 8.0 hours before the alert went out and 17 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: 1302 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 790 m above ground
0-6 km bulk shear: 1 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 90 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.

149 
WWUS82 KFFC 062001
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
401 PM EDT SAT AUG 6 2011

GAZ054>057-068-062030-
401 PM EDT SAT AUG 6 2011

...SIGNIFICANT WEATHER ADVISORY FOR 35 MPH WINDS AND FREQUENT 
LIGHTNING IN SPALDING...PIKE...FAYETTE...HENRY AND CLAYTON COUNTIES 
UNTIL 430 PM EDT...

AT 357 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
STRONG THUNDERSTORMS FROM JW SMITH RESERVOIR TO HOLLONVILLE...MOVING 
EAST AT 5 MPH.

WIND GUSTS OF 35 MPH AND FREQUENT LIGHTNING ARE LIKELY AS THESE 
STORMS MOVE ACROSS SPALDING...EXTREME NORTHERN 
PIKE...FAYETTE...HENRY AND CLAYTON COUNTIES THROUGH 430 PM EDT. SOME 
LOCATIONS IN THE PATH OF THESE STORMS INCLUDE 
HOLLONVILLE...VAUGHN...JW SMITH RESERVOIR...WILLIAMSON...BIRDIE... 
EXPERIMENT...HIGHLAND MILLS...ZETELLA...ROVER...SUNNY 
SIDE...GRIFFIN...ATLANTA MOTOR SPEEDWAY...HAMPTON AND LOVEJOY.

&&

LAT...LON 3350 8422 3328 8424 3317 8432 3316 8450
      3331 8439 3345 8438
TIME...MOT...LOC 2001Z 270DEG 5KT 3342 8441 3328 8442
          3320 8449

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 5, 8:03 PM EDT	Special Weather Statement	FFC	Rockdale, Walton	27 min
Aug 5, 8:29 PM EDT	Special Weather Statement	FFC	DeKalb	31 min
Aug 6, 12:43 PM EDT	Special Weather Statement	FFC	Muscogee	32 min
Aug 6, 1:15 PM EDT	Special Weather Statement	FFC	Upson	30 min
Aug 6, 1:32 PM EDT	Special Weather Statement	FFC	Talbot	28 min
Aug 6, 2:01 PM EDT	Special Weather Statement	FFC	Taylor	29 min
Aug 6, 2:23 PM EDT	Special Weather Statement	FFC	Troup	37 min
Aug 6, 2:39 PM EDT	Special Weather Statement	FFC	Coweta	36 min
Aug 6, 2:54 PM EDT	Special Weather Statement	FFC	Hancock	51 min
Aug 6, 3:11 PM EDT	Special Weather Statement	FFC	Coweta	34 min
Aug 6, 3:42 PM EDT	Special Weather Statement	FFC	Fayette	33 min
Aug 6, 3:43 PM EDT	Special Weather Statement	FFC	Fayette	32 min
Aug 6, 4:49 PM EDT	Special Weather Statement	FFC	Clayton, Henry, Spalding	26 min
Aug 6, 5:05 PM EDT	Special Weather Statement	FFC	Douglas	25 min
Aug 6, 5:08 PM EDT	Special Weather Statement	FFC	Butts, Jasper	37 min
Aug 6, 5:18 PM EDT	Special Weather Statement	FFC	DeKalb	27 min
Aug 6, 5:28 PM EDT	Special Weather Statement	FFC	Laurens	32 min
Aug 6, 5:44 PM EDT	Special Weather Statement	FFC	DeKalb, Fulton	31 min
Aug 6, 6:10 PM EDT	Special Weather Statement	FFC	Johnson	35 min
Aug 6, 6:52 PM EDT	Special Weather Statement	FFC	Glascock, Warren, Washington	23 min
Aug 6, 7:02 PM EDT	Severe Thunderstorm Warning	FFC	Hancock, Washington	43 min
Aug 6, 7:11 PM EDT	Special Weather Statement	FFC	Montgomery, Toombs	34 min
Aug 6, 7:25 PM EDT	Special Weather Statement	FFC	Glascock, Jefferson, Warren	35 min
Aug 6, 7:39 PM EDT	Severe Thunderstorm Warning	FFC	Glascock, Jefferson, Warren	36 min

Nearby

Special Weather Statements in Georgia, 2011 Every special weather statement in 2011

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.