Alert archive / Georgia / Tornado Warnings in 2013

Tornado Warning 22, NWS Atlanta, GA

August 18, 2013Carroll County, Heard County, Georgia

NWS Atlanta, GA issued this tornado warning at Aug 18, 2013, 7:40 PM EDT for Carroll County, Heard County, Georgia. It was in force for 50 min. 2 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
Aug 18, 2013, 7:40 PM EDT (23:40 UTC)
Expired
Aug 18, 2013, 8:30 PM EDT
In force
50 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Carroll County, GA, Heard County, GA

The radar

The Atlanta radar (KFFC), 60 km from the middle of the area, began a volume at 23:42 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
Aug 18, 7:40 PM EDTTORNADO 12 Wnw Ephesus, GANATIONAL WEATHER SERVICE SURVEY TEAM DETERMINED THAT AN EF0 TORNADO TOUCHED DOWN JUST INSIDE THE GA-AL LINE IN HEARD COUNTY. A MOBILE HOME SUSTAINED ROOF DAMAGE AS THE TORNADO TRACKED NORTHEASTWARD...PARALLELING UPPER CALDWELL ROAD AS IT STRENGTHENED TO AN EF1
Aug 18, 7:41 PM EDTTORNADO 12 Wnw Ephesus, GANATIONAL WEATHER SERVICE SURVEY TEAM DETERMINED THAT AN EF0 TORNADO TOUCHED DOWN JUST INSIDE THE GA-AL LINE IN HEARD COUNTY. A MOBILE HOME SUSTAINED ROOF DAMAGE AS THE TORNADO TRACKED NORTHEASTWARD...PARALLELING UPPER CALDWELL ROAD AS IT STRENGTHENED TO AN EF1

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, 11.7 hours before the alert went out and 66 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 2013-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 246 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 12:00Z on 2013-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
246 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
653 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

250 
WFUS52 KFFC 182340
TORFFC
GAC045-149-190030-
/O.NEW.KFFC.TO.W.0022.130818T2340Z-130819T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
740 PM EDT SUN AUG 18 2013

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN CARROLL COUNTY IN NORTHWEST GEORGIA
  NORTHWESTERN HEARD COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 830 PM EDT

* AT 737 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR EPHESUS...
  MOVING NORTHEAST AT 20 MPH.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO A
BASEMENT OR INTERIOR ROOM ON THE GROUND FLOOR. STAY AWAY FROM
WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT WILL BE TOO LATE TO GET TO A SAFE
PLACE.

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 3370 8514 3353 8496 3333 8528 3355 8532
TIME...MOT...LOC 2340Z 229DEG 18KT 3345 8527

$$
2 follow-up statements
851 
WWUS52 KFFC 182355
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
755 PM EDT SUN AUG 18 2013

GAC149-190005-
/O.CAN.KFFC.TO.W.0022.000000T0000Z-130819T0030Z/
HEARD GA-
755 PM EDT SUN AUG 18 2013

...THE TORNADO WARNING FOR NORTHWESTERN HEARD COUNTY IS CANCELLED...

THE STORM HAS MOVED OUT OF THE COUNTY...THEREFORE THE WARNING IS 
CANCELLED.

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 3370 8514 3353 8496 3342 8513 3343 8530
      3355 8532
TIME...MOT...LOC 2355Z 229DEG 18KT 3350 8520

$$

GAC045-190030-
/O.CON.KFFC.TO.W.0022.000000T0000Z-130819T0030Z/
CARROLL GA-
755 PM EDT SUN AUG 18 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR
SOUTHWESTERN CARROLL COUNTY...

AT 751 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR TYUS...MOVING
NORTHEAST AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
ROOPVILLE...JOHN TANNER STATE PARK...MOUNT ZION...CARROLLTON...CLEM
AND BOWDON JUNCTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO A
BASEMENT OR INTERIOR ROOM ON THE FIRST FLOOR. STAY AWAY FROM WINDOWS.
IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT WILL BE TOO LATE TO GET TO A SAFE
PLACE.

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 3370 8514 3353 8496 3342 8513 3343 8530
      3355 8532
TIME...MOT...LOC 2355Z 229DEG 18KT 3350 8520

$$
072 
WWUS52 KFFC 190012
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
812 PM EDT SUN AUG 18 2013

GAC045-190030-
/O.CON.KFFC.TO.W.0022.000000T0000Z-130819T0030Z/
CARROLL GA-
812 PM EDT SUN AUG 18 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR CARROLL
COUNTY...

AT 810 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR ROOPVILLE...MOVING
NORTHEAST AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO JOHN
TANNER STATE PARK...MOUNT ZION...CLEM...BOWDON JUNCTION AND
CARROLLTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO A
BASEMENT OR INTERIOR ROOM ON THE FIRST FLOOR. STAY AWAY FROM WINDOWS.
IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT WILL BE TOO LATE TO GET TO A SAFE
PLACE.

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 3343 8513 3349 8522 3360 8525 3370 8514
      3353 8496
TIME...MOT...LOC 0012Z 223DEG 16KT 3352 8517

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 8:00 PM EDTSpecial Weather StatementFFCToombs30 min
Aug 17, 8:44 PM EDTSpecial Weather StatementFFCToombs61 min
Aug 17, 9:43 PM EDTSpecial Weather StatementFFCEmanuel, Montgomery, Toombs, Treutlen62 min
Aug 18, 2:53 PM EDTSpecial Weather StatementFFCDooly37 min
Aug 18, 3:17 PM EDTSpecial Weather StatementFFCBaldwin28 min
Aug 18, 3:22 PM EDTSpecial Weather StatementFFCMontgomery38 min
Aug 18, 3:43 PM EDTSpecial Weather StatementFFCBaldwin47 min
Aug 18, 4:15 PM EDTSpecial Weather StatementFFCCrisp, Dooly, Houston30 min
Aug 18, 4:22 PM EDTSevere Thunderstorm WarningFFCHancock, Washington38 min
Aug 18, 4:43 PM EDTSpecial Weather StatementFFCWheeler47 min
Aug 18, 4:58 PM EDTSpecial Weather StatementFFCGlascock32 min
Aug 18, 5:27 PM EDTSpecial Weather StatementFFCGlascock33 min
Aug 18, 5:37 PM EDTSpecial Weather StatementFFCBibb, Jones, Monroe23 min
Aug 18, 6:02 PM EDTSpecial Weather StatementFFCJones, Monroe28 min
Aug 18, 6:22 PM EDTSpecial Weather StatementFFCJasper38 min
Aug 18, 6:44 PM EDTSpecial Weather StatementFFCGlascock31 min
Aug 18, 7:11 PM EDTSpecial Weather StatementFFCPutnam34 min
Aug 18, 7:38 PM EDTSpecial Weather StatementFFCCarroll37 min

Nearby

Tornado Warnings in Georgia, 2013Every tornado warning in 2013Tornadoes in 2013

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.