Alert archive / Georgia / Tornado Warnings in 2012

Tornado Warning 1, NWS Jacksonville, FL

January 21, 2012Coffee County, Georgia

NWS Jacksonville, FL issued this tornado warning at Jan 21, 2012, 8:17 PM EST for Coffee County, Georgia. It was in force for 28 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 21, 2012, 8:17 PM EST (01:17 UTC)
Expired
Jan 21, 2012, 8:45 PM EST
In force
28 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon

County Coffee County, GA

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 1.3 hours before the alert went out and 149 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, Jacksonville, FL at 00:00Z on 2012-01-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 00:00Z on 2012-01-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1044 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
107 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.

977 
WFUS52 KJAX 220117
TORJAX
GAC069-220145-
/O.NEW.KJAX.TO.W.0001.120122T0117Z-120122T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
817 PM EST SAT JAN 21 2012

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN COFFEE COUNTY IN SOUTHEAST GEORGIA

* UNTIL 845 PM EST

* AT 818 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  DOUGLAS...MOVING SOUTHEAST AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  NICHOLLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR
HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER
YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.

&&

LAT...LON 3163 8284 3161 8277 3154 8259 3147 8260
      3147 8263 3138 8263 3137 8263 3136 8271
      3150 8291 3156 8294
TIME...MOT...LOC 0118Z 303DEG 27KT 3153 8279

$$

SHASHY
1 follow-up statement
911 
WWUS52 KJAX 220136
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
836 PM EST SAT JAN 21 2012

GAC069-220145-
/O.CON.KJAX.TO.W.0001.000000T0000Z-120122T0145Z/
COFFEE GA-
836 PM EST SAT JAN 21 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM EST FOR
SOUTHEASTERN COFFEE COUNTY...

AT 837 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A TORNADO.  THIS TORNADO WAS LOCATED NEAR NICHOLLS...OR 10
MILES EAST OF DOUGLAS...MOVING SOUTHEAST AT 30 MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR
HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER
YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.

&&

LAT...LON 3154 8259 3147 8260 3147 8263 3137 8264
      3136 8270 3136 8272 3143 8280 3154 8273
      3156 8269
TIME...MOT...LOC 0137Z 303DEG 27KT 3145 8265

$$

SHASHY

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 7:02 PM ESTSevere Thunderstorm WarningJAXAppling43 min
Jan 21, 7:18 PM ESTSpecial Weather StatementJAXWayne27 min
Jan 21, 7:30 PM ESTSevere Thunderstorm WarningJAXWayne45 min
Jan 21, 7:44 PM ESTSpecial Weather StatementJAXCoffee46 min
Jan 21, 7:53 PM ESTSevere Thunderstorm WarningJAXCoffee, Jeff Davis52 min
Jan 21, 8:16 PM ESTSpecial Weather StatementJAXWayne29 min
Jan 21, 8:31 PM ESTSevere Thunderstorm WarningJAXBacon, Coffee, Pierce, Ware44 min
Jan 21, 8:45 PM ESTTornado WarningJAXCoffee, Ware45 min

Nearby

Tornado Warnings in Georgia, 2012Every tornado warning in 2012Tornadoes 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.