Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 181, NWS Atlanta, GA

April 16, 20115 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 16, 2011, 4:40 AM EDT for 5 counties in Georgia. It was in force for 50 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
Apr 16, 2011, 4:40 AM EDT (08:40 UTC)
Expired
Apr 16, 2011, 5:30 AM EDT
In force
50 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Chattahoochee County, GA, Macon County, GA, Marion County, GA, Muscogee County, GA, Talbot County, GA

The radar

The Robins AFB radar (KJGX), 91 km from the middle of the area, began a volume at 08:41 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 watch it was issued in

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

IssuedProductOfficeLasted
Apr 15, 9:12 PM EDTTornado WatchSPC9 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 8.7 hours before the alert went out and 112 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°0°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.

596 
WUUS52 KFFC 160840
SVRFFC
GAC053-193-197-215-263-160930-
/O.NEW.KFFC.SV.W.0181.110416T0840Z-110416T0930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
440 AM EDT SAT APR 16 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHATTAHOOCHEE COUNTY IN WEST CENTRAL GEORGIA
  EXTREME WEST CENTRAL MACON COUNTY IN WEST CENTRAL GEORGIA
  NORTHERN MARION COUNTY IN WEST CENTRAL GEORGIA
  SOUTHEASTERN MUSCOGEE COUNTY IN WEST CENTRAL GEORGIA
  SOUTHWESTERN TALBOT COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 530 AM EDT

* AT 437 AM 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 FORT
  BENNING/LAWSON ARMY AIR FIELD...MOVING EAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  CUSSETA...NORTH FORT BENNING...BUENA VISTA...GENEVA AND JUNCTION
  CITY.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 AM EDT SATURDAY MORNING
FOR GEORGIA.

&&

LAT...LON 3243 8498 3266 8450 3257 8441 3256 8444
      3253 8445 3250 8444 3248 8441 3238 8439
      3240 8424 3238 8421 3238 8439 3234 8439
      3223 8492 3225 8493 3226 8490 3233 8501
TIME...MOT...LOC 0841Z 253DEG 38KT 3233 8491

$$
2 follow-up statements
776 
WWUS52 KFFC 160842
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
442 AM EDT SAT APR 16 2011

GAC193-263-160852-
/O.CAN.KFFC.SV.W.0181.000000T0000Z-110416T0930Z/
TALBOT GA-MACON GA-
442 AM EDT SAT APR 16 2011

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME WEST CENTRAL MACON AND
SOUTHWESTERN TALBOT COUNTIES IS CANCELLED...

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BOX
SPRINGS...GENEVA AND JUNCTION CITY.

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 600 AM EDT SATURDAY MORNING
FOR GEORGIA.

LAT...LON 3225 8493 3226 8490 3233 8501 3257 8441
      3253 8445 3250 8444 3248 8441 3238 8439
      3235 8440 3223 8491
TIME...MOT...LOC 0842Z 253DEG 38KT 3233 8490

$$

GAC053-197-215-160930-
/O.CON.KFFC.SV.W.0181.000000T0000Z-110416T0930Z/
MUSCOGEE GA-MARION GA-CHATTAHOOCHEE GA-
442 AM EDT SAT APR 16 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 AM EDT
FOR CHATTAHOOCHEE...NORTHERN MARION AND SOUTHEASTERN MUSCOGEE
COUNTIES...

AT 440 AM 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 6
MILES NORTHWEST OF JAMESTOWN/SOUTH FORT BENNING...MOVING EAST AT 45
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CUSSETA...CHRISTOPHER...MANTA...EELBECK/WEST FORT BENNING...
ZELLOBEE...BRANTLEY...MARION ESTATES...OAKLAND...TAZEWELL AND FIVE
POINTS.

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 600 AM EDT SATURDAY MORNING
FOR GEORGIA.

&&

LAT...LON 3225 8493 3226 8490 3233 8501 3257 8441
      3253 8445 3250 8444 3248 8441 3238 8439
      3235 8440 3223 8491
TIME...MOT...LOC 0842Z 253DEG 38KT 3233 8490

$$
761 
WWUS52 KFFC 160915
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
515 AM EDT SAT APR 16 2011

GAC053-215-160925-
/O.CAN.KFFC.SV.W.0181.000000T0000Z-110416T0930Z/
MUSCOGEE GA-CHATTAHOOCHEE GA-
515 AM EDT SAT APR 16 2011

...THE SEVERE THUNDERSTORM WARNING FOR CHATTAHOOCHEE AND MUSCOGEE
COUNTIES IS CANCELLED...

THE SEVERE THUNDERSTORM HAS MOVED OUT OF THE COUNTIES...THUS THE 
WARNING HAS BEEN CANCELLED.

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 600 AM EDT SATURDAY MORNING
FOR GEORGIA.

LAT...LON 3241 8462 3249 8460 3250 8459 3256 8445
      3251 8444 3247 8441
TIME...MOT...LOC 0915Z 253DEG 38KT 3243 8450

$$

GAC197-160930-
/O.CON.KFFC.SV.W.0181.000000T0000Z-110416T0930Z/
MARION GA-
515 AM EDT SAT APR 16 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 AM EDT
FOR NORTHERN MARION COUNTY...

AT 512 AM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZED HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS
STORM WAS LOCATED NEAR OAKLAND...MOVING EAST AT 45 MPH.

THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY.

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 600 AM EDT SATURDAY MORNING
FOR GEORGIA.

&&

LAT...LON 3241 8462 3249 8460 3250 8459 3256 8445
      3251 8444 3247 8441
TIME...MOT...LOC 0915Z 253DEG 38KT 3243 8450

$$

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, 8:12 PM EDTSevere Thunderstorm WarningFFCLamar, Meriwether, Pike, Talbot, Upson48 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, 4:45 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.