Alert archive / Alabama / Tornado Warnings in 2012

Tornado Warning 74, NWS Tallahassee, FL

December 25, 2012Coffee County, Geneva County, Alabama

NWS Tallahassee, FL issued this tornado warning at Dec 25, 2012, 5:34 PM CST for Coffee County, Geneva County, Alabama. It was in force for 26 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 25, 2012, 5:34 PM CST (23:34 UTC)
Expired: Dec 25, 2012, 6:00 PM CST
In force: 26 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

Counties Coffee County, AL, Geneva County, AL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Dec 25, 2:41 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 11.6 hours before the alert went out and 194 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: 212 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 448 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 64 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

619 
WFUS52 KTAE 252334
TORTAE
ALC031-061-260000-
/O.NEW.KTAE.TO.W.0074.121225T2334Z-121226T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
534 PM CST TUE DEC 25 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN COFFEE COUNTY IN SOUTHEAST ALABAMA...
  NORTHWESTERN GENEVA COUNTY IN SOUTHEAST ALABAMA...

* UNTIL 600 PM CST

* AT 531 PM CST...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE
  NATIONAL WEATHER SERVICE NEAR SAMSON...OR NEAR EARLYTOWN...MOVING
  NORTHEAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEW
  BROCKTON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! LEAVE MOBILE HOMES AND VEHICLES FOR SAFER STRUCTURES.
MOVE TO A HALLWAY OR CLOSET ON THE LOWEST FLOOR AWAY FROM WINDOWS AND
OUTSIDE WALLS.

&&

LAT...LON 3139 8610 3140 8579 3105 8604 3110 8620
      3119 8620
TIME...MOT...LOC 2334Z 208DEG 36KT 3113 8611

$$

15-HARRIGAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 24, 9:22 PM CST	Dense Fog Advisory	TAE	Coffee, Dale, Geneva, Henry, Houston	12 hr
Dec 25, 4:36 PM CST	Tornado Warning	TAE	Coffee, Geneva	24 min
Dec 25, 4:53 PM CST	Tornado Warning	TAE	Coffee	37 min
Dec 25, 4:56 PM CST	Tornado Warning	TAE	Coffee, Dale	49 min
Dec 25, 5:07 PM CST	Tornado Warning	TAE	Geneva	38 min

Nearby

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