Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 165, NWS Atlanta, GA

April 15, 20115 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 15, 2011, 8:12 PM EDT for 5 counties in Georgia. It was in force for 48 min. 1 report 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
Apr 15, 2011, 8:12 PM EDT (00:12 UTC)
Expired
Apr 15, 2011, 9:00 PM EDT
In force
48 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Lamar County, GA, Meriwether County, GA, Pike County, GA, Talbot County, GA, Upson County, GA

The radar

The Atlanta radar (KFFC), 49 km from the middle of the area, began a volume at 00:12 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

TimeReportWhereRemark
Apr 15, 8:38 PM EDTHAIL 0.59 W Thomaston, GA

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 15, 5:46 PM EDTTornado WatchSPC3 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.2 hours before the alert went out and 47 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2011-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 406 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2011-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 373 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
406 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
1138 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
373 m²/s²
0-3 km storm-relative helicity
566 m²/s²
Significant tornado parameter
1.3
Supercell composite
11.3

Open this sounding in Storm Lab

The text

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

541 
WUUS52 KFFC 160012
SVRFFC
GAC171-199-231-263-293-160100-
/O.NEW.KFFC.SV.W.0165.110416T0012Z-110416T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
812 PM EDT FRI APR 15 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL LAMAR COUNTY IN WEST CENTRAL GEORGIA
  SOUTHEASTERN MERIWETHER COUNTY IN WEST CENTRAL GEORGIA
  SOUTHERN PIKE COUNTY IN WEST CENTRAL GEORGIA
  NORTHEASTERN TALBOT COUNTY IN WEST CENTRAL GEORGIA
  UPSON COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 900 PM EDT

* AT 809 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING BASEBALL SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED 16 MILES
  SOUTHWEST OF MOLENA...MOVING NORTHEAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  THOMASTON...MEANSVILLE AND THE ROCK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED ROTATION WITHIN THIS STORM. ALTHOUGH
CURRENT DATA DOES NOT INDICATE THE EXISTENCE OF A TORNADO...A TORNADO
MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO
A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT SATURDAY MORNING
FOR NORTHERN GEORGIA.

&&

LAT...LON 3314 8421 3280 8414 3274 8449 3302 8459
TIME...MOT...LOC 0012Z 246DEG 36KT 3284 8462

$$
2 follow-up statements
273 
WWUS52 KFFC 160027
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
827 PM EDT FRI APR 15 2011

GAC171-199-231-263-293-160100-
/O.CON.KFFC.SV.W.0165.000000T0000Z-110416T0100Z/
TALBOT GA-PIKE GA-MERIWETHER GA-LAMAR GA-UPSON GA-
827 PM EDT FRI APR 15 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR UPSON...WEST CENTRAL LAMAR...SOUTHEASTERN MERIWETHER...SOUTHERN
PIKE AND NORTHEASTERN TALBOT COUNTIES...

AT 822 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZED
HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED NEAR
SPREWELL BLUFF STATE PARK...MOVING NORTHEAST AT 40 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MOLENA...ROWLAND...CREST...SUNNYSIDE...ATWATER...THOMASTON...HANNAHS
MILL...LIFSEY SPRINGS...REDBONE CROSSROADS...MEANSVILLE...LOGTOWN...
THE ROCK AND PIEDMONT.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT SATURDAY MORNING
FOR NORTHERN GEORGIA.

&&

LAT...LON 3314 8421 3280 8414 3274 8449 3302 8459
TIME...MOT...LOC 0027Z 246DEG 36KT 3290 8446

$$
198 
WWUS52 KFFC 160040
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
840 PM EDT FRI APR 15 2011

GAC199-263-160049-
/O.CAN.KFFC.SV.W.0165.000000T0000Z-110416T0100Z/
TALBOT GA-MERIWETHER GA-
840 PM EDT FRI APR 15 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MERIWETHER AND
NORTHEASTERN TALBOT COUNTIES IS CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS EXITED MERIWETHER AND TALBOT 
COUNTIES AND THE WARNING HAS BEEN CANCELED FOR 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT SATURDAY MORNING
FOR NORTHERN GEORGIA.

LAT...LON 3314 8421 3280 8414 3283 8441 3284 8442
      3283 8445 3300 8449
TIME...MOT...LOC 0039Z 246DEG 36KT 3295 8433

$$

GAC171-231-293-160100-
/O.CON.KFFC.SV.W.0165.000000T0000Z-110416T0100Z/
PIKE GA-LAMAR GA-UPSON GA-
840 PM EDT FRI APR 15 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR UPSON...WEST CENTRAL LAMAR AND SOUTHEASTERN PIKE COUNTIES...

AT 836 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING GOLF BALL SIZED HAIL...AND DAMAGING WINDS UP TO 60 MPH.
THIS STORM WAS LOCATED NEAR HANNAHS MILL...MOVING NORTHEAST AT 40
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO REDBONE
CROSSROADS...MEANSVILLE...LOGTOWN...THE ROCK AND PIEDMONT.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT SATURDAY MORNING
FOR NORTHERN GEORGIA.

&&

LAT...LON 3314 8421 3280 8414 3283 8441 3284 8442
      3283 8445 3300 8449
TIME...MOT...LOC 0039Z 246DEG 36KT 3295 8433

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 8:02 PM EDTTornado WarningFFCCobb, DeKalb, Fulton43 min
Apr 15, 8:19 PM EDTSevere Thunderstorm WarningFFCBarrow, Gwinnett41 min
Apr 15, 8:28 PM EDTSevere Thunderstorm WarningFFCForsyth, Hall47 min
Apr 15, 8:45 PM EDTSevere Thunderstorm WarningFFCCobb, Douglas, Paulding45 min
Apr 15, 8:56 PM EDTSevere Thunderstorm WarningFFCButts, Lamar, Monroe, Pike, Upson49 min
Apr 15, 9:18 PM EDTSevere Thunderstorm WarningFFCButts, Jasper, Jones, Monroe42 min
Apr 15, 9:19 PM EDTSevere Thunderstorm WarningFFCDeKalb, Forsyth, Fulton, Gwinnett41 min
Apr 15, 10:44 PM EDTRiver Flood WarningFFCForsyth, Fulton40 hr
Apr 15, 11:44 PM EDTRiver Flood WarningFFCCobb6 hr
Apr 16, 12:17 AM EDTRiver Flood WarningFFCForsyth14 hr
Apr 16, 12:47 AM EDTRiver Flood WarningFFCDade34 hr
Apr 16, 1:25 AM EDTSevere Thunderstorm WarningFFCHeard, Troup50 min
Apr 16, 1:40 AM EDTSevere Thunderstorm WarningFFCBartow, Carroll, Haralson, Paulding50 min
Apr 16, 1:54 AM EDTSevere Thunderstorm WarningFFCCarroll, Coweta, Fulton, Meriwether51 min
Apr 16, 2:10 AM EDTTornado WarningFFCCarroll, Cobb, Douglas, Fulton, Paulding50 min
Apr 16, 2:38 AM EDTSevere Thunderstorm WarningFFCClayton, DeKalb, Fayette, Fulton, Henry, Newton and 1 more52 min
Apr 16, 2:46 AM EDTSevere Thunderstorm WarningFFCHarris44 min
Apr 16, 3:15 AM EDTSevere Thunderstorm WarningFFCHarris, Muscogee45 min
Apr 16, 3:26 AM EDTSevere Thunderstorm WarningFFCMeriwether49 min
Apr 16, 3:35 AM EDTWind AdvisoryFFCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more16 hr
Apr 16, 3:39 AM EDTTornado WarningFFCHarris, Talbot36 min
Apr 16, 3:51 AM EDTSevere Thunderstorm WarningFFCLamar, Meriwether, Pike, Spalding39 min
Apr 16, 4:04 AM EDTSevere Thunderstorm WarningFFCMeriwether, Pike, Talbot, Upson26 min
Apr 16, 4:40 AM EDTSevere Thunderstorm WarningFFCChattahoochee, Macon, Marion, Muscogee, Talbot50 min
Apr 16, 4:45 AM EDTTornado WarningFFCChattahoochee, Marion, Muscogee45 min
Apr 16, 5:12 AM EDTSevere Thunderstorm WarningFFCChattahoochee, Crawford, Marion, Talbot, Taylor, Upson48 min
Apr 16, 5:48 AM EDTTornado WarningFFCBibb, Crawford, Monroe, Taylor42 min
Apr 16, 6:14 AM EDTTornado WarningFFCBaldwin, Jones, Putnam46 min
Apr 16, 6:26 AM EDTRiver Flood WarningFFCWhitfield64 hr
Apr 16, 8:42 AM EDTRiver Flood WarningFFCCobb7 hr
Apr 16, 10:34 AM EDTRiver Flood WarningFFCGordon, Murray, Whitfield28 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2011Every 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.