Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 471, NWS Atlanta, GA

August 9, 2011Emanuel County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 9, 2011, 5:39 PM EDT for Emanuel County, Georgia. It was in force for 36 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 9, 2011, 5:39 PM EDT (21:39 UTC)
Expired: Aug 9, 2011, 6:15 PM EDT
In force: 36 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

County Emanuel County, GA

The radar

The Robins AFB radar (KJGX), 107 km from the middle of the area, began a volume at 21:42 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

Charleston AFB, SC (KCHS), launched 12:00Z, 9.7 hours before the alert went out and 215 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: 227 J/kg
Mixed-layer CIN: -252 J/kg
Mixed-layer LCL: 1371 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: 18 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.

141 
WUUS52 KFFC 092139
SVRFFC
GAC107-092215-
/O.NEW.KFFC.SV.W.0471.110809T2139Z-110809T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
539 PM EDT TUE AUG 9 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN EMANUEL COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 615 PM EDT

* AT 538 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED NEAR NUNEZ...
  MOVING EAST AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO OAK
  PARK AND STILLMORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

&&

LAT...LON 3254 8204 3255 8208 3251 8215 3241 8219
      3236 8224 3231 8223 3230 8228 3234 8240
      3237 8241 3244 8238 3247 8244 3264 8238
      3255 8203
TIME...MOT...LOC 2140Z 292DEG 26KT 3248 8229

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 8:03 PM EDT	Special Weather Statement	FFC	Heard, Troup	42 min
Aug 8, 8:17 PM EDT	Special Weather Statement	FFC	Henry, Rockdale	28 min
Aug 8, 8:25 PM EDT	Special Weather Statement	FFC	Toombs	35 min
Aug 8, 8:27 PM EDT	Special Weather Statement	FFC	Oconee, Walton	48 min
Aug 8, 8:30 PM EDT	Special Weather Statement	FFC	Fannin	45 min
Aug 8, 8:32 PM EDT	Special Weather Statement	FFC	Jefferson	28 min
Aug 8, 8:56 PM EDT	Special Weather Statement	FFC	Glascock, Jefferson	34 min
Aug 8, 9:05 PM EDT	Special Weather Statement	FFC	Crisp	25 min
Aug 8, 9:06 PM EDT	Special Weather Statement	FFC	Fayette, Spalding	39 min
Aug 8, 9:38 PM EDT	Special Weather Statement	FFC	Harris	37 min
Aug 8, 9:39 PM EDT	Special Weather Statement	FFC	Jefferson	36 min
Aug 8, 10:01 PM EDT	Special Weather Statement	FFC	Lamar, Monroe	44 min
Aug 8, 10:42 PM EDT	Special Weather Statement	FFC	Bibb	33 min
Aug 9, 2:40 PM EDT	Special Weather Statement	FFC	Bibb, Twiggs	50 min
Aug 9, 2:45 PM EDT	Special Weather Statement	FFC	Harris, Meriwether, Muscogee, Pike, Talbot, Upson	45 min
Aug 9, 3:33 PM EDT	Special Weather Statement	FFC	Pike	27 min
Aug 9, 3:41 PM EDT	Special Weather Statement	FFC	Crawford, Taylor, Upson	49 min
Aug 9, 3:53 PM EDT	Severe Thunderstorm Warning	FFC	Lamar, Monroe, Pike, Upson	52 min
Aug 9, 4:08 PM EDT	Special Weather Statement	FFC	Banks	52 min
Aug 9, 4:13 PM EDT	Special Weather Statement	FFC	Glascock, Jefferson	32 min
Aug 9, 4:16 PM EDT	Severe Thunderstorm Warning	FFC	Monroe	44 min
Aug 9, 4:39 PM EDT	Special Weather Statement	FFC	Houston, Peach, Twiggs	36 min
Aug 9, 4:43 PM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Dodge, Pulaski	47 min
Aug 9, 4:43 PM EDT	Severe Thunderstorm Warning	FFC	Bibb, Jones	47 min
Aug 9, 4:54 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Stewart	36 min
Aug 9, 4:55 PM EDT	Special Weather Statement	FFC	Emanuel	50 min
Aug 9, 5:00 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel, Jefferson	45 min
Aug 9, 5:03 PM EDT	Severe Thunderstorm Warning	FFC	Twiggs	42 min
Aug 9, 5:13 PM EDT	Special Weather Statement	FFC	Treutlen	32 min
Aug 9, 5:13 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Wilkinson	35 min
Aug 9, 5:19 PM EDT	Special Weather Statement	FFC	Schley, Stewart, Webster	26 min
Aug 9, 5:21 PM EDT	Special Weather Statement	FFC	Telfair	24 min
Aug 9, 5:43 PM EDT	Severe Thunderstorm Warning	FFC	Crisp	30 min
Aug 9, 5:54 PM EDT	Special Weather Statement	FFC	Toombs	36 min
Aug 9, 6:08 PM EDT	Severe Thunderstorm Warning	FFC	Telfair	26 min
Aug 9, 6:20 PM EDT	Severe Thunderstorm Warning	FFC	Toombs	25 min
Aug 9, 7:29 PM EDT	Special Weather Statement	FFC	Morgan	31 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2011 Every severe thunderstorm warning 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.