Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 232, NWS Atlanta, GA

May 14, 20114 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 14, 2011, 3:36 PM EDT for 4 counties in Georgia. It was in force for 39 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 14, 2011, 3:36 PM EDT (19:36 UTC)
Expired: May 14, 2011, 4:15 PM EDT
In force: 39 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Johnson County, GA, Laurens County, GA, Washington County, GA, Wilkinson County, GA

The radar

The Robins AFB radar (KJGX), 45 km from the middle of the area, began a volume at 19:39 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.

What was reported inside it

Time	Report	Where	Remark
May 14, 4:02 PM EDT	TSTM WND DMG	2 Wnw Harrison, GA	WASHINGTON COUNTY 911 RELAYED A REPORT OF A DOWNED TREE ON NEW TENNILLE ROAD.
May 14, 4:04 PM EDT	TSTM WND GST 60	Wrightsville, GA	JOHNSON COUNTY EMERGENCY MANAGEMENT ESTIMATED WINDS GUSTING TO 60 MPH IN WRIGHTSVILLE.
May 14, 4:10 PM EDT	TSTM WND GST 60	Wrightsville, GA	JOHNSON COUNTY EMERGENCY MANAGEMENT ESTIMATED WINDS GUSTING TO 60 MPH IN WRIGHTSVILLE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.6 hours before the alert went out and 165 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: 7 J/kg
Mixed-layer CIN: -172 J/kg
Mixed-layer LCL: 729 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 82 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.

939 
WUUS52 KFFC 141936
SVRFFC
GAC167-175-303-319-142015-
/O.NEW.KFFC.SV.W.0232.110514T1936Z-110514T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
336 PM EDT SAT MAY 14 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL LAURENS COUNTY IN CENTRAL GEORGIA
  EAST CENTRAL WILKINSON COUNTY IN CENTRAL GEORGIA
  NORTHERN JOHNSON COUNTY IN EAST CENTRAL GEORGIA
  SOUTHERN WASHINGTON COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 415 PM EDT

* AT 334 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 7 MILES
  SOUTHEAST OF TOOMSBORO...MOVING NORTHEAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  OCONEE...WRIGHTSVILLE...TENNILLE...RIDDLEVILLE...SANDERSVILLE AND
  HARRISON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

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 3263 8305 3279 8313 3308 8268 3270 8249
TIME...MOT...LOC 1936Z 246DEG 21KT 3275 8299

$$

1 follow-up statement

114 
WWUS52 KFFC 142002
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
402 PM EDT SAT MAY 14 2011

GAC175-319-142010-
/O.CAN.KFFC.SV.W.0232.000000T0000Z-110514T2015Z/
LAURENS GA-WILKINSON GA-
402 PM EDT SAT MAY 14 2011

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WILKINSON AND
NORTH CENTRAL LAURENS COUNTIES IS CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS EXITED THESE COUNTIES.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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 3267 8279 3269 8279 3271 8283 3290 8290
      3308 8268 3270 8249
TIME...MOT...LOC 2000Z 246DEG 21KT 3281 8284

$$

GAC167-303-142015-
/O.CON.KFFC.SV.W.0232.000000T0000Z-110514T2015Z/
WASHINGTON GA-JOHNSON GA-
402 PM EDT SAT MAY 14 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR CENTRAL JOHNSON AND SOUTHEASTERN WASHINGTON COUNTIES...

AT 356 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED
HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED 8 
MILES WEST OF HARRISON...MOVING NORTHEAST AT 25 MPH.  THIS STORM HAS 
WEAKENED AND THE WARNING WILL BE ALLOWED TO EXPIRE AS THE WEAKENING 
TREND CONTINUES.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WRIGHTSVILLE...TENNILLE...DONOVAN...NEW HOME...PRINGLE...RIDDLEVILLE
AND HARRISON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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 3267 8279 3269 8279 3271 8283 3290 8290
      3308 8268 3270 8249
TIME...MOT...LOC 2000Z 246DEG 21KT 3281 8284

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 8:50 PM EDT	Special Weather Statement	FFC	Crisp	40 min
May 13, 9:10 PM EDT	Special Weather Statement	FFC	Crisp	35 min
May 14, 1:17 PM EDT	Special Weather Statement	FFC	Emanuel, Johnson	28 min
May 14, 2:12 PM EDT	Special Weather Statement	FFC	Bibb, Bleckley, Dooly, Houston, Jones, Peach and 2 more	48 min
May 14, 2:33 PM EDT	Special Weather Statement	FFC	Emanuel	27 min
May 14, 2:54 PM EDT	Special Weather Statement	FFC	Baldwin, Bleckley, Jones, Laurens, Twiggs, Wilkinson	51 min
May 14, 3:39 PM EDT	Special Weather Statement	FFC	Hancock, Johnson, Laurens, Putnam, Washington	36 min
May 14, 3:53 PM EDT	Severe Thunderstorm Warning	FFC	Greene, Hancock, Putnam	52 min
May 14, 4:13 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel, Jefferson, Johnson, Laurens, Washington	62 min
May 14, 4:27 PM EDT	Special Weather Statement	FFC	Taliaferro	48 min
May 14, 5:01 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel, Treutlen	44 min
May 14, 5:14 PM EDT	Special Weather Statement	FFC	Montgomery, Telfair, Wheeler	46 min
May 14, 5:41 PM EDT	Special Weather Statement	FFC	Treutlen	34 min
May 14, 5:55 PM EDT	Special Weather Statement	FFC	Montgomery, Toombs, Wheeler	50 min
May 14, 6:26 PM EDT	Severe Thunderstorm Warning	FFC	Montgomery, Toombs	49 min
May 14, 6:46 PM EDT	Special Weather Statement	FFC	Wilcox	29 min
May 14, 6:53 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Wilcox	52 min
May 14, 7:28 PM EDT	Special Weather Statement	FFC	Dodge	32 min
May 14, 7:55 PM EDT	Severe Thunderstorm Warning	FFC	Laurens	25 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.