Alert archive / Georgia / Tornado Warnings in 2018

Tornado Warning 6, NWS Tallahassee, FL

February 11, 2018Decatur County, Grady County, Mitchell County, Georgia

NWS Tallahassee, FL issued this tornado warning at Feb 11, 2018, 9:03 AM EST for Decatur County, Grady County, Mitchell County, Georgia. It was in force for 27 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 11, 2018, 9:03 AM EST (14:03 UTC)
Expired: Feb 11, 2018, 9:30 AM EST
In force: 27 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Decatur County, GA, Grady County, GA, Mitchell County, GA

The radar

The Tallahassee radar (KTLH), 67 km from the middle of the area, began a volume at 14:04 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 2.1 hours before the alert went out and 67 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 43 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 644 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 213 m²/s²
0-3 km storm-relative helicity: 236 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

040 
WFUS52 KTAE 111403
TORTAE
GAC087-131-205-111430-
/O.NEW.KTAE.TO.W.0006.180211T1403Z-180211T1430Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tallahassee FL
903 AM EST SUN FEB 11 2018

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  Northeastern Decatur County in southwestern Georgia...
  Northwestern Grady County in southwestern Georgia...
  Southwestern Mitchell County in southwestern Georgia...

* Until 930 AM EST
    
* At 902 AM EST, a severe thunderstorm capable of producing a tornado
  was located near Bainbridge, moving northeast at 35 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. 

* This tornadic thunderstorm will remain over mainly rural areas of
  northeastern Decatur...northwestern Grady and southwestern Mitchell
  Counties, including the following locations: Vada, Peoples Still,
  Steinham Store and Harrells Still.

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.

&&

LAT...LON 3091 8456 3096 8460 3114 8445 3098 8430
TIME...MOT...LOC 1402Z 240DEG 49KT 3098 8451 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

04-MCDERMOTT

1 follow-up statement

257 
WWUS52 KTAE 111422
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
922 AM EST SUN FEB 11 2018

GAC205-111431-
/O.CAN.KTAE.TO.W.0006.000000T0000Z-180211T1430Z/
Mitchell GA-
922 AM EST SUN FEB 11 2018

...THE TORNADO WARNING FOR SOUTHWESTERN MITCHELL 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 3094 8447 3099 8451 3108 8443 3098 8430
TIME...MOT...LOC 1421Z 240DEG 49KT 3111 8425 

$$

GAC087-131-111430-
/O.CON.KTAE.TO.W.0006.000000T0000Z-180211T1430Z/
Decatur GA-Grady GA-
922 AM EST SUN FEB 11 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 AM EST FOR
NORTHEASTERN DECATUR AND WESTERN GRADY COUNTIES...
    
At 921 AM EST, a severe thunderstorm capable of producing a tornado
was located near Pelham, moving northeast at 35 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...
Harrells Still and Peoples Still. 

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.

&&

LAT...LON 3094 8447 3099 8451 3108 8443 3098 8430
TIME...MOT...LOC 1421Z 240DEG 49KT 3111 8425 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

04-MCDERMOTT

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 11, 1:40 AM EST	Flood Watch	TAE	Baker, Calhoun, Clay, Decatur, Dougherty, Early and 8 more	29 hr
Feb 11, 10:00 AM EST	Special Weather Statement	TAE	Colquitt	45 min

Nearby

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