Alert archive / Georgia / Tornado Warnings in 2018

Tornado Warning 2, NWS Atlanta, GA

February 7, 20184 counties in Georgia

NWS Atlanta, GA issued this tornado warning at Feb 7, 2018, 9:12 AM EST for 4 counties in Georgia. It was in force for 13 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
Feb 7, 2018, 9:12 AM EST (14:12 UTC)
Expired
Feb 7, 2018, 9:25 AM EST
In force
13 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Coweta County, GA, Heard County, GA, Meriwether County, GA, Troup County, GA

The radar

The Atlanta radar (KFFC), 37 km from the middle of the area, began a volume at 14:15 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, 2.2 hours before the alert went out and 43 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 2018-02-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 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 2018-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 504 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
14 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
486 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
504 m²/s²
0-3 km storm-relative helicity
655 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

512 
WFUS52 KFFC 071412
TORFFC
GAC077-149-199-285-071445-
/O.NEW.KFFC.TO.W.0002.180207T1412Z-180207T1445Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Peachtree City GA
912 AM EST WED FEB 7 2018

The National Weather Service in Peachtree City has issued a

* Tornado Warning for...
  Northwestern Meriwether County in west central Georgia...
  Southeastern Heard County in west central Georgia...
  Northeastern Troup County in west central Georgia...
  Southwestern Coweta County in west central Georgia...

* Until 945 AM EST
    
* At 912 AM EST, a severe thunderstorm capable of producing a tornado
  was located near Harrisonville, or near Franklin, moving east at 55
  mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* Locations impacted include...
  Newnan, Hogansville, Grantville, Luthersville, Moreland, Lone Oak,
  East Newnan, Corinth and Harrisonville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

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 or tweet us your report at NWSATLANTA.

&&

LAT...LON 3317 8512 3324 8513 3336 8479 3326 8469
      3316 8472
TIME...MOT...LOC 1412Z 264DEG 49KT 3321 8505 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$
2 follow-up statements
986 
WWUS52 KFFC 071423
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
923 AM EST WED FEB 7 2018

GAC149-071432-
/O.CAN.KFFC.TO.W.0002.000000T0000Z-180207T1445Z/
Heard GA-
923 AM EST WED FEB 7 2018

...THE TORNADO WARNING FOR SOUTHEASTERN HEARD COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3322 8495 3323 8494 3324 8494 3332 8490
      3336 8479 3326 8469 3316 8472 3317 8498
TIME...MOT...LOC 1422Z 264DEG 49KT 3323 8487 

$$

GAC077-199-285-071445-
/O.CON.KFFC.TO.W.0002.000000T0000Z-180207T1445Z/
Meriwether GA-Troup GA-Coweta GA-
923 AM EST WED FEB 7 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 AM EST FOR
NORTHWESTERN MERIWETHER...NORTHEASTERN TROUP AND SOUTHWESTERN COWETA
COUNTIES...
    
At 922 AM EST, a severe thunderstorm capable of producing a tornado
was located over Grantville, or 11 miles southwest of Newnan, moving
east at 55 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

Locations impacted include...
Newnan, Hogansville, Grantville, Luthersville, Moreland, Lone Oak,
East Newnan and Corinth.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3322 8495 3323 8494 3324 8494 3332 8490
      3336 8479 3326 8469 3316 8472 3317 8498
TIME...MOT...LOC 1422Z 264DEG 49KT 3323 8487 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$
364 
WWUS52 KFFC 071425
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
925 AM EST WED FEB 7 2018

GAC077-199-285-071435-
/O.CAN.KFFC.TO.W.0002.000000T0000Z-180207T1445Z/
Meriwether GA-Troup GA-Coweta GA-
925 AM EST WED FEB 7 2018

...THE TORNADO WARNING FOR NORTHWESTERN MERIWETHER...NORTHEASTERN
TROUP AND SOUTHWESTERN COWETA COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been cancelled.

LAT...LON 3322 8495 3323 8494 3324 8494 3332 8490
      3336 8479 3326 8469 3316 8472 3317 8498
TIME...MOT...LOC 1424Z 264DEG 49KT 3323 8484 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 7, 7:34 AM ESTSpecial Weather StatementFFCCarroll, Haralson26 min
Feb 7, 7:40 AM ESTTornado WarningFFCCarroll, Haralson, Paulding35 min
Feb 7, 8:08 AM ESTSpecial Weather StatementFFCDouglas37 min
Feb 7, 8:57 AM ESTSpecial Weather StatementFFCCoweta, Heard, Troup33 min
Feb 7, 9:43 AM ESTSpecial Weather StatementFFCFayette, Henry, Spalding32 min
Feb 7, 10:14 AM ESTSpecial Weather StatementFFCHarris, Muscogee46 min
Feb 7, 10:46 AM ESTSpecial Weather StatementFFCChattahoochee, Muscogee, Talbot, Upson29 min
Feb 7, 11:03 AM ESTTornado WarningFFCTalbot, Taylor27 min
Feb 7, 11:18 AM ESTSpecial Weather StatementFFCMacon, Marion, Schley27 min
Feb 7, 11:30 AM ESTSpecial Weather StatementFFCCrawford, Peach, Taylor30 min
Feb 7, 11:43 AM ESTSpecial Weather StatementFFCHouston, Macon, Sumter, Webster47 min
Feb 7, 11:59 AM ESTSpecial Weather StatementFFCPeach31 min
Feb 7, 12:09 PM ESTRiver Flood WarningFFCForsyth14 hr
Feb 7, 12:20 PM ESTSpecial Weather StatementFFCBleckley, Crisp, Dooly, Pulaski, Twiggs40 min
Feb 7, 1:00 PM ESTSpecial Weather StatementFFCDodge, Johnson, Laurens30 min
Feb 7, 1:29 PM ESTSpecial Weather StatementFFCEmanuel, Johnson, Montgomery, Toombs, Treutlen, Wheeler46 min

Nearby

Tornado Warnings in Georgia, 2018Every tornado warning in 2018Tornadoes in 2018

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.