Alert archive / Alabama / Tornado Warnings in 2012

Tornado Warning 138, NWS Mobile, AL

December 25, 2012Wilcox County, Alabama

NWS Mobile, AL issued this tornado warning at Dec 25, 2012, 7:34 PM CST for Wilcox 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, 7:34 PM CST (01:34 UTC)
Expired
Dec 25, 2012, 8:00 PM CST
In force
26 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Wilcox County, AL

The watch it was issued in

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

IssuedProductOfficeLasted
Dec 25, 12:58 PM CSTTornado Watch PDSSPC9 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 1.6 hours before the alert went out and 136 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, Birmingham, AL at 00:00Z on 2012-12-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 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, Birmingham, AL at 00:00Z on 2012-12-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 696 square meters per square second.1939587897Sfc1 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
22 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
563 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
696 m²/s²
0-3 km storm-relative helicity
921 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

206 
WFUS54 KMOB 260134
TORMOB
ALC131-260200-
/O.NEW.KMOB.TO.W.0138.121226T0134Z-121226T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
734 PM CST TUE DEC 25 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN WILCOX COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 800 PM CST

* AT 732 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 10 MILES SOUTH OF CAMDEN...OR 5 MILES EAST OF
  VREDENBURGH...MOVING NORTHEAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  OAK HILL...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

IF IN MANUFACTURED HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CST TUESDAY EVENING
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 1000 PM CST TUESDAY EVENING FOR SOUTH
CENTRAL ALABAMA AND NORTHWEST FLORIDA.

&&

LAT...LON 3205 8685 3197 8685 3196 8688 3196 8691
      3194 8691 3183 8711 3183 8739 3206 8718
      3205 8686
TIME...MOT...LOC 0135Z 225DEG 54KT 3188 8721

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 25, 6:08 PM CSTTornado WarningMOBClarke, Monroe, Wilcox67 min
Dec 25, 6:20 PM CSTSpecial Marine WarningMOB85 min
Dec 25, 6:20 PM CSTSevere Thunderstorm WarningMOBClarke, Monroe, Wilcox55 min
Dec 25, 6:29 PM CSTSevere Thunderstorm WarningMOBMobile, Washington46 min
Dec 25, 6:38 PM CSTCoastal Flood AdvisoryMOB5 hr
Dec 25, 6:59 PM CSTTornado WarningMOBClarke, Monroe45 min
Dec 25, 7:00 PM CSTSevere Thunderstorm WarningMOBBaldwin, Clarke, Mobile, Monroe, Washington60 min
Dec 25, 7:00 PM CSTTornado WarningMOBWilcox30 min
Dec 25, 7:19 PM CSTSevere Thunderstorm WarningMOBMobile41 min
Dec 25, 7:21 PM CSTTornado WarningMOBMobile39 min
Dec 25, 7:37 PM CSTSevere Thunderstorm WarningMOBClarke, Conecuh, Monroe, Wilcox53 min
Dec 25, 7:59 PM CSTSevere Thunderstorm WarningMOBBaldwin, Clarke, Conecuh, Escambia, Mobile, Monroe46 min
Dec 25, 8:03 PM CSTSpecial Marine WarningMOB87 min
Dec 25, 8:11 PM CSTTornado WarningMOBBaldwin, Escambia49 min
Dec 25, 8:36 PM CSTTornado WarningMOBButler, Conecuh39 min
Dec 25, 8:44 PM CSTSevere Thunderstorm WarningMOBConecuh, Escambia, Monroe46 min
Dec 25, 8:58 PM CSTSevere Thunderstorm WarningMOBBaldwin47 min
Dec 25, 9:08 PM CSTSpecial Marine WarningMOB82 min
Dec 25, 9:09 PM CSTTornado WarningMOBButler, Crenshaw51 min
Dec 25, 9:23 PM CSTSpecial Marine WarningMOB97 min
Dec 25, 9:29 PM CSTSevere Thunderstorm WarningMOBConecuh, Covington, Escambia46 min
Dec 25, 9:35 PM CSTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw70 min
Dec 25, 9:45 PM CSTSevere Thunderstorm WarningMOBBaldwin, Covington, Escambia45 min
Dec 25, 10:15 PM CSTSevere Thunderstorm WarningMOBCovington, Crenshaw60 min
Dec 25, 10:29 PM CSTSevere Thunderstorm WarningMOBCovington, Escambia46 min
Dec 25, 10:33 PM CSTSpecial Marine WarningMOB117 min
Dec 25, 10:40 PM CSTTornado WarningMOBCovington35 min
Dec 25, 11:14 PM CSTSevere Thunderstorm WarningMOBCovington26 min
Dec 26, 5:43 AM CSTWind AdvisoryMOBButler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more9 hr

Nearby

Tornado Warnings in Alabama, 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.