Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 347, NWS Atlanta, GA

December 10, 2012Carroll County, Haralson County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Dec 10, 2012, 11:50 AM EST for Carroll County, Haralson County, Georgia. It was in force for 25 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
Dec 10, 2012, 11:50 AM EST (16:50 UTC)
Expired
Dec 10, 2012, 12:15 PM EST
In force
25 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Carroll County, GA, Haralson County, GA

The radar

The Atlanta radar (KFFC), 60 km from the middle of the area, began a volume at 16:53 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 4.8 hours before the alert went out and 65 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 2012-12-10Temperature 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 2012-12-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 170 square meters per square second.1939587897Sfc1 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
677 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
170 m²/s²
0-3 km storm-relative helicity
156 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.

445 
WUUS52 KFFC 101650
SVRFFC
GAC045-143-101715-
/O.NEW.KFFC.SV.W.0347.121210T1650Z-121210T1715Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1150 AM EST MON DEC 10 2012

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CARROLL COUNTY IN NORTHWEST GEORGIA
  SOUTHERN HARALSON COUNTY IN NORTHWEST GEORGIA

* UNTIL 1215 PM EST

* AT 1144 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS UP TO 60   
  MPH.  THIS STORM WAS LOCATED JUST NORTHEAST OF BOWDON...MOVING EAST AT 
  35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ROOPVILLE...MOUNT ZION...WACO...BREMEN...CARROLLTON AND TEMPLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3362 8532 3381 8503 3379 8492 3345 8494
      3343 8530
TIME...MOT...LOC 1649Z 250DEG 31KT 3358 8522

$$
1 follow-up statement
681 
WWUS52 KFFC 101704
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1204 PM EST MON DEC 10 2012

GAC143-101713-
/O.CAN.KFFC.SV.W.0347.000000T0000Z-121210T1715Z/
HARALSON GA-
1204 PM EST MON DEC 10 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN HARALSON COUNTY IS
CANCELLED...

THE STORM HAS EXITED THE WARNED AREA.

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 3366 8514 3371 8507 3372 8506 3373 8505
      3377 8492 3352 8494 3346 8495 3345 8499
      3344 8526
TIME...MOT...LOC 1703Z 253DEG 45KT 3365 8501

$$

GAC045-101715-
/O.CON.KFFC.SV.W.0347.000000T0000Z-121210T1715Z/
CARROLL GA-
1204 PM EST MON DEC 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM EST
FOR CENTRAL CARROLL COUNTY...

AT 1158 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS UP
TO 60 MPH. THIS STORM WAS LOCATED NEAR ABILENE...MOVING EAST AT 50
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SEATON
LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3366 8514 3371 8507 3372 8506 3373 8505
      3377 8492 3352 8494 3346 8495 3345 8499
      3344 8526
TIME...MOT...LOC 1703Z 253DEG 45KT 3365 8501

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 2:57 AM ESTWind AdvisoryFFCCatoosa, Chattooga, Dade, Fannin, Gilmer, Lumpkin and 6 more16 hr
Dec 10, 5:12 AM ESTSpecial Weather StatementFFCCatoosa, Chattooga, Dade, Walker63 min
Dec 10, 6:13 AM ESTSpecial Weather StatementFFCCatoosa, Murray, Whitfield47 min
Dec 10, 6:29 AM ESTSpecial Weather StatementFFCChattooga, Floyd31 min
Dec 10, 6:55 AM ESTSpecial Weather StatementFFCChattooga, Floyd35 min
Dec 10, 8:15 AM ESTDense Fog AdvisoryFFCEmanuel, Johnson, Laurens, Montgomery, Telfair, Toombs and 2 more105 min
Dec 10, 11:24 AM ESTSpecial Weather StatementFFCCarroll, Heard51 min
Dec 10, 12:06 PM ESTSpecial Weather StatementFFCForsyth39 min
Dec 10, 12:12 PM ESTSpecial Weather StatementFFCCoweta, Douglas, Fulton, Heard48 min
Dec 10, 3:26 PM ESTSpecial Weather StatementFFCPike49 min
Dec 10, 3:29 PM ESTSpecial Weather StatementFFCMarion31 min
Dec 10, 3:58 PM ESTSpecial Weather StatementFFCMarion47 min
Dec 10, 4:02 PM ESTSevere Thunderstorm WarningFFCGreene, Hancock, Morgan, Putnam43 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.