Alert archive / Alabama / Tornado Warnings in 2012

Tornado Warning 135, NWS Mobile, AL

December 25, 2012Clarke County, Monroe County, Alabama

NWS Mobile, AL issued this tornado warning at Dec 25, 2012, 6:59 PM CST for Clarke County, Monroe County, Alabama. It was in force for 45 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, 6:59 PM CST (00:59 UTC)
Expired
Dec 25, 2012, 7:44 PM CST
In force
45 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Clarke County, AL, Monroe County, AL

The radar

The Mobile radar (KMOB), 117 km from the middle of the area, began a volume at 00:59 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 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, 1.0 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-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°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.

146 
WFUS54 KMOB 260059
TORMOB
ALC025-099-260200-
/O.NEW.KMOB.TO.W.0135.121226T0059Z-121226T0200Z/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN MONROE COUNTY IN SOUTH CENTRAL ALABAMA...
  EAST CENTRAL CLARKE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 800 PM CST

* AT 654 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 9 MILES SOUTHEAST OF JACKSON...OR 13 MILES EAST
  OF LEROY...MOVING NORTHEAST AT 50 MPH.

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 3137 8773 3147 8784 3183 8754 3183 8711
TIME...MOT...LOC 0059Z 217DEG 42KT 3150 8771

$$
3 follow-up statements
543 
WWUS54 KMOB 260116
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
716 PM CST TUE DEC 25 2012

ALC025-099-260200-
/O.CON.KMOB.TO.W.0135.000000T0000Z-121226T0200Z/
MONROE AL-CLARKE AL-
716 PM CST TUE DEC 25 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CST FOR EAST
CENTRAL CLARKE AND NORTHWESTERN MONROE COUNTIES...

AT 712 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 14 MILES NORTHWEST OF FRISCO CITY...OR 9 MILES SOUTHEAST
OF WHATLEY...MOVING NORTHEAST AT 40 MPH.

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 3137 8773 3147 8784 3183 8754 3183 8711
TIME...MOT...LOC 0116Z 226DEG 33KT 3158 8757

$$
131 
WWUS54 KMOB 260129 RRA
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
729 PM CST TUE DEC 25 2012

ALC025-260139-
/O.CAN.KMOB.TO.W.0135.000000T0000Z-121226T0200Z/
CLARKE AL-
729 PM CST TUE DEC 25 2012

...THE TORNADO WARNING HAS BEEN CANCELLED FOR EAST CENTRAL CLARKE
COUNTY...

AT 726 PM CST...THE STORM THAT PROMPTED THE WARNING FOR EAST CENTRAL 
CLARKE COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE TORNADO WARNING 
HAS BEEN CANCELLED.

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 3183 8711 3159 8743 3167 8751 3183 8739
TIME...MOT...LOC 0129Z 228DEG 41KT 3172 8740

$$

ALC099-260200-
/O.CON.KMOB.TO.W.0135.000000T0000Z-121226T0200Z/
MONROE AL-
729 PM CST TUE DEC 25 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CST FOR NORTH
CENTRAL MONROE COUNTY...

AT 726 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 13 MILES NORTHWEST OF MONROEVILLE...OR 11 MILES SOUTHWEST
OF VREDENBURGH...MOVING NORTHEAST AT 45 MPH.

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 3183 8711 3159 8743 3167 8751 3183 8739
TIME...MOT...LOC 0129Z 228DEG 41KT 3172 8740

$$
815 
WWUS54 KMOB 260144
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
744 PM CST TUE DEC 25 2012

ALC099-260154-
/O.CAN.KMOB.TO.W.0135.000000T0000Z-121226T0200Z/
MONROE AL-
744 PM CST TUE DEC 25 2012

...THE TORNADO WARNING HAS BEEN CANCELLED FOR NORTH CENTRAL MONROE
COUNTY...

AT 741 PM CST...THE STORM THAT PROMPTED THE WARNING FOR NORTH CENTRAL
MONROE COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE TORNADO WARNING
HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 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 3183 8711 3159 8743 3167 8751 3183 8739
TIME...MOT...LOC 0144Z 228DEG 41KT 3183 8725

$$

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, 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, 7:34 PM CSTTornado WarningMOBWilcox26 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; radar from the NEXRAD Level II archive.