Alert archive / Georgia / Special Weather Statements in 2011

Special Weather Statement, NWS Atlanta, GA

June 23, 2011Butts County, Henry County, Spalding County, Georgia

NWS Atlanta, GA issued this special weather statement at Jun 23, 2011, 6:21 PM EDT for Butts County, Henry County, Spalding County, Georgia. It was in force for 39 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: Jun 23, 2011, 6:21 PM EDT (22:21 UTC)
Expired: Jun 23, 2011, 7:00 PM EDT
In force: 39 min
Issued by: NWS Atlanta, GA

Counties Butts County, GA, Henry County, GA, Spalding County, GA

The radar

The Atlanta radar (KFFC), 41 km from the middle of the area, began a volume at 22:21 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, 10.4 hours before the alert went out and 35 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: 1756 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 526 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

164 
WWUS82 KFFC 232221
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
621 PM EDT THU JUN 23 2011

GAZ056>058-232300-
621 PM EDT THU JUN 23 2011

...SIGNIFICANT WEATHER ADVISORY FOR 45 MPH WINDS IN SPALDING...BUTTS
AND HENRY COUNTIES UNTIL 700 PM EDT...

AT 616 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED STRONG 
THUNDERSTORMS FROM AROUND STOCKBRIDGE TO MCDONOUGH AND GRIFFIN... 
MOVING EAST AT 25 MPH.

THESE STORMS HAVE THE POTENTIAL TO PRODUCE PEA SIZED HAIL... 
OCCASIONAL CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 45 MPH AS 
THEY MOVE ACROSS SPALDING...BUTTS AND HENRY COUNTIES THROUGH 700 PM 
EDT. SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE 
EXPERIMENT...ZETELLA...SUNNY SIDE...HIDDEN VALLEY PARK...EAGLES 
LANDING...FLIPPEN...STOCKBRIDGE...HIGHLAND MILLS...BLACKSVILLE... 
MCDONOUGH...LUELLA...TOWALAGA...GRIFFIN...LUELLA AND WALKER MILL. 
HEAVY DOWNPOURS WILL CAUSE PONDING OF WATER ON ROADWAYS.

SIGNIFICANT WEATHER ADVISORIES ARE ISSUED FOR WINDS UP TO 50 MPH...
HAIL LESS THAN THE SIZE OF QUARTERS...OR SIGNIFICANT CLOUD-TO-GROUND
LIGHTNING.

&&

LAT...LON 3338 8428 3346 8426 3355 8429 3355 8426
      3359 8424 3362 8426 3362 8417 3356 8413
      3354 8405 3350 8403 3348 8395 3329 8383
      3325 8383 3321 8392 3321 8411 3324 8439
TIME...MOT...LOC 2220Z 271DEG 22KT 3353 8420 3346 8414
          3338 8416 3327 8430

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 8:43 PM EDT	Special Weather Statement	FFC	Dawson, Fannin, Gilmer, Lumpkin, Towns, Union and 1 more	47 min
Jun 22, 9:11 PM EDT	Special Weather Statement	FFC	Hall	34 min
Jun 22, 9:31 PM EDT	Special Weather Statement	FFC	White	29 min
Jun 23, 5:05 AM EDT	Special Weather Statement	FFC	Forsyth, Hall	25 min
Jun 23, 5:43 AM EDT	Special Weather Statement	FFC	Banks, Hall	32 min
Jun 23, 12:06 PM EDT	Special Weather Statement	FFC	Twiggs	24 min
Jun 23, 12:21 PM EDT	Special Weather Statement	FFC	Wilkinson	24 min
Jun 23, 1:55 PM EDT	Special Weather Statement	FFC	Hancock	35 min
Jun 23, 3:23 PM EDT	Special Weather Statement	FFC	Washington	37 min
Jun 23, 3:36 PM EDT	Special Weather Statement	FFC	Wheeler	39 min
Jun 23, 4:16 PM EDT	Special Weather Statement	FFC	Montgomery, Toombs, Wheeler	44 min
Jun 23, 4:18 PM EDT	Special Weather Statement	FFC	Carroll	27 min
Jun 23, 4:29 PM EDT	Special Weather Statement	FFC	Chattahoochee, Marion, Stewart, Webster	46 min
Jun 23, 4:37 PM EDT	Severe Thunderstorm Warning	FFC	Montgomery, Toombs	38 min
Jun 23, 4:43 PM EDT	Special Weather Statement	FFC	Coweta	32 min
Jun 23, 5:13 PM EDT	Special Weather Statement	FFC	Fayette	47 min
Jun 23, 5:17 PM EDT	Special Weather Statement	FFC	Chattahoochee, Marion, Muscogee, Schley	43 min
Jun 23, 6:06 PM EDT	Special Weather Statement	FFC	Talbot	39 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.