Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 26, NWS Atlanta, GA

January 23, 2012Heard County, Troup County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jan 23, 2012, 9:40 AM EST for Heard County, Troup County, 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
Jan 23, 2012, 9:40 AM EST (14:40 UTC)
Expired
Jan 23, 2012, 10:30 AM EST
In force
50 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Heard County, GA, Troup County, GA

The radar

The Atlanta radar (KFFC), 46 km from the middle of the area, began a volume at 14:44 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
Jan 23, 3:44 AM ESTTornado WatchSPC9 hr
Jan 23, 8:49 AM ESTTornado WatchSPC5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 2.7 hours before the alert went out and 51 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 12:00Z on 2012-01-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2012-01-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 492 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
463 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
492 m²/s²
0-3 km storm-relative helicity
722 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.

700 
WUUS52 KFFC 231440
SVRFFC
GAC149-285-231530-
/O.NEW.KFFC.SV.W.0026.120123T1440Z-120123T1530Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
940 AM EST MON JAN 23 2012

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN HEARD COUNTY IN WEST CENTRAL GEORGIA
  TROUP COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 1030 AM EST

* AT 932 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS UP
  TO 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE 15 MILES WEST OF WEST
  POINT...MOVING EAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  LAGRANGE...CORINTH AND HOGANSVILLE.

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...HAIL OR 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. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM EST MONDAY AFTERNOON
FOR NORTHWESTERN GEORGIA.

&&

LAT...LON 3328 8499 3326 8495 3322 8494 3322 8490
      3321 8488 3305 8487 3287 8487 3287 8519
      3321 8526
TIME...MOT...LOC 1438Z 252DEG 31KT 3310 8536 3299 8535
          3293 8541 3288 8548

$$
2 follow-up statements
455 
WWUS52 KFFC 231504
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1004 AM EST MON JAN 23 2012

GAC149-285-231530-
/O.CON.KFFC.SV.W.0026.000000T0000Z-120123T1530Z/
TROUP GA-HEARD GA-
1004 AM EST MON JAN 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 AM EST
FOR SOUTHEASTERN HEARD AND TROUP COUNTIES...

AT 1001 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS UP TO 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM WARES CROSSROADS TO CANNONVILLE...MOVING EAST AT 40 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HILLCREST...LAGRANGE...HARRISONVILLE...SMITHS CROSSROAD...CORINTH...
LOUISE...HOGANSVILLE...BIG SPRINGS AND MOUNTVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. 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...HAIL OR 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. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

&&

LAT...LON 3322 8518 3328 8499 3326 8495 3322 8494
      3322 8490 3321 8488 3297 8487 3292 8511
      3308 8513
TIME...MOT...LOC 1503Z 251DEG 36KT 3318 8509 3307 8508
          3300 8510 3294 8516

$$
830 
WWUS52 KFFC 231522
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1022 AM EST MON JAN 23 2012

GAC149-285-231531-
/O.EXP.KFFC.SV.W.0026.000000T0000Z-120123T1530Z/
TROUP GA-HEARD GA-
1022 AM EST MON JAN 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HEARD AND TROUP
COUNTIES EXPIRES AT 1030 AM EST...

AT 1016 AM EST...A POTENTIAL LINE OF SEVERE THUNDERSTORMS WAS 
DETECTED BY RADAR BUT WEAKENING. THESE STORMS WERE LOCATED ALONG A LINE 
EXTENDING FROM CORINTH TO LOUISE TO SMITHS CROSSROAD...MOVING EAST 
AT 40 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BIG
SPRINGS AND MOUNTVILLE.

IF YOU SEE WIND DAMAGE...HAIL OR 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. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM EST MONDAY AFTERNOON
FOR WEST CENTRAL GEORGIA.

LAT...LON 3322 8518 3328 8499 3326 8495 3322 8494
      3322 8490 3321 8488 3297 8487 3292 8511
      3308 8513
TIME...MOT...LOC 1521Z 251DEG 36KT 3324 8488 3313 8488
          3306 8490 3300 8496

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 23, 4:08 AM ESTSpecial Weather StatementFFCDade37 min
Jan 23, 4:56 AM ESTWind AdvisoryFFCCatoosa, Chattooga, Dade, Fannin, Gilmer, Murray and 2 more6 hr
Jan 23, 6:34 AM ESTSpecial Weather StatementFFCPolk41 min
Jan 23, 8:04 AM ESTSpecial Weather StatementFFCHaralson, Polk41 min
Jan 23, 8:29 AM ESTSpecial Weather StatementFFCHeard61 min
Jan 23, 9:24 AM ESTFlash Flood WarningFFCDade6 hr
Jan 23, 9:29 AM ESTSpecial Weather StatementFFCTroup46 min
Jan 23, 9:46 AM ESTRiver Flood WarningFFCDade19 hr
Jan 23, 10:50 AM ESTSpecial Weather StatementFFCClayton, Fayette, Henry, Spalding40 min
Jan 23, 11:34 AM ESTSpecial Weather StatementFFCMuscogee41 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012Every severe thunderstorm warning in 2012

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.