Alert archive / Alabama / Tornado Warnings in 2012

Tornado Warning 129, NWS Mobile, AL

December 25, 20124 counties in Alabama

NWS Mobile, AL issued this tornado warning at Dec 25, 2012, 5:16 PM CST for 4 counties in Alabama. It was in force for 44 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, 5:16 PM CST (23:16 UTC)
Expired: Dec 25, 2012, 6:00 PM CST
In force: 44 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Baldwin County, AL, Clarke County, AL, Mobile County, AL, Monroe County, AL

The radar

The Mobile radar (KMOB), 64 km from the middle of the area, began a volume at 23:17 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.

Issued	Product	Office	Lasted
Dec 25, 12:58 PM CST	Tornado Watch PDS	SPC	9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.3 hours before the alert went out and 200 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: 790 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 576 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 237 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 10.0

Open this sounding in Storm Lab

The text

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

675 
WFUS54 KMOB 252316
TORMOB
ALC003-025-097-099-260000-
/O.NEW.KMOB.TO.W.0129.121225T2316Z-121226T0000Z/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN MONROE COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHWESTERN BALDWIN COUNTY IN SOUTHWEST ALABAMA...
  SOUTHEASTERN CLARKE COUNTY IN SOUTHWEST ALABAMA...
  NORTHEASTERN MOBILE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 600 PM CST

* AT 512 PM CST...A SEVERE THUNDERSTORM WITH STRONG ROTATION AND
  LIKELY PRODUCING A TORNADO WAS LOCATED 3 MILES EAST OF SATSUMA...OR
  3 MILES SOUTHEAST OF I65 AND US 43...MOVING NORTH AT 50 MPH. THIS  
  TORNADIC STORMS HAS STARTED MOVING MORE NORTHWARD...WHICH HAS     
  REQUIRED A NEW WARNING.

* LOCATIONS IMPACTED INCLUDE...
  SATSUMA...            I65 AND US 43...      CREOLA...
  AXIS...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 19 AND 31.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3084 8808 3116 8797 3116 8794 3121 8795
      3123 8793 3124 8794 3136 8789 3138 8789
      3155 8783 3146 8757 3082 8794
TIME...MOT...LOC 2315Z 202DEG 45KT 3088 8800

$$

3 follow-up statements

216 
WWUS54 KMOB 252330 RRA
SVSMOB

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

ALC003-025-097-099-260000-
/O.CON.KMOB.TO.W.0129.000000T0000Z-121226T0000Z/
MONROE AL-CLARKE AL-BALDWIN AL-MOBILE AL-
530 PM CST TUE DEC 25 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CST FOR
NORTHEASTERN MOBILE...NORTHWESTERN BALDWIN...SOUTHEASTERN CLARKE AND
SOUTHWESTERN MONROE COUNTIES...

AT 526 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 10 MILES NORTHEAST OF CREOLA...OR 5 MILES EAST OF
BUCKS...MOVING NORTH AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  RURAL NORTHEASTERN MOBILE COUNTY
  RURAL NORTHWESTERN BALDWIN COUNTY
  RURAL SOUTHEASTERN CLARKE COUNTY
  RURAL SOUTHWESTERN MONROE COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3146 8757 3097 8789 3100 8803 3116 8797
      3116 8794 3121 8795 3123 8793 3124 8794
      3134 8790 3155 8783
TIME...MOT...LOC 2331Z 202DEG 45KT 3107 8791

$$

031 
WWUS54 KMOB 252337
SVSMOB

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

ALC097-252347-
/O.CAN.KMOB.TO.W.0129.000000T0000Z-121226T0000Z/
MOBILE AL-
537 PM CST TUE DEC 25 2012

...THE TORNADO WARNING HAS BEEN CANCELLED FOR NORTHEASTERN MOBILE
COUNTY...

AT 535 PM CST...THE STORM THAT PROMPTED THE WARNING FOR NORTHEASTERN 
MOBILE 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 3146 8757 3109 8784 3112 8794 3113 8795
      3115 8794 3115 8796 3116 8797 3116 8794
      3121 8795 3123 8793 3124 8794 3155 8783
TIME...MOT...LOC 2337Z 204DEG 36KT 3114 8786

$$

ALC003-025-099-260000-
/O.CON.KMOB.TO.W.0129.000000T0000Z-121226T0000Z/
MONROE AL-CLARKE AL-BALDWIN AL-
537 PM CST TUE DEC 25 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CST FOR
NORTHWESTERN BALDWIN...SOUTHEASTERN CLARKE AND SOUTHWESTERN MONROE
COUNTIES...

AT 535 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 17 MILES NORTH OF BAY MINETTE...OR 9 MILES EAST OF
CALVERT...MOVING NORTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  RURAL NORTHWESTERN BALDWIN COUNTY
  RURAL SOUTHEASTERN CLARKE COUNTY
  RURAL SOUTHWESTERN MONROE COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3146 8757 3109 8784 3112 8794 3113 8795
      3115 8794 3115 8796 3116 8797 3116 8794
      3121 8795 3123 8793 3124 8794 3155 8783
TIME...MOT...LOC 2337Z 204DEG 36KT 3114 8786

$$

597 
WWUS54 KMOB 252349
SVSMOB

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

ALC003-025-099-260000-
/O.CON.KMOB.TO.W.0129.000000T0000Z-121226T0000Z/
MONROE AL-CLARKE AL-BALDWIN AL-
549 PM CST TUE DEC 25 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CST FOR NORTH
CENTRAL BALDWIN...SOUTHEASTERN CLARKE AND SOUTHWESTERN MONROE
COUNTIES...

AT 545 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 19 MILES SOUTH OF JACKSON...OR 11 MILES EAST OF
MALCOLM...MOVING NORTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  RURAL NORTH CENTRAL BALDWIN COUNTY
  RURAL SOUTHEASTERN CLARKE COUNTY
  RURAL SOUTHWESTERN MONROE COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3118 8778 3122 8787 3127 8788 3155 8783
      3146 8757
TIME...MOT...LOC 2350Z 204DEG 36KT 3128 8780

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 24, 9:38 PM CST	Small Craft Advisory	MOB		20 hr
Dec 25, 4:41 AM CST	Gale Warning	MOB		31 hr
Dec 25, 4:41 AM CST	Small Craft Advisory	MOB		13 hr
Dec 25, 4:41 AM CST	Small Craft Advisory	MOB		42 hr
Dec 25, 4:41 AM CST	Small Craft Advisory	MOB		42 hr
Dec 25, 2:01 PM CST	Special Marine Warning	MOB		62 min
Dec 25, 2:43 PM CST	Tornado Warning	MOB	Clarke	32 min
Dec 25, 2:55 PM CST	Tornado Warning	MOB	Clarke, Monroe	65 min
Dec 25, 3:14 PM CST	Special Marine Warning	MOB		61 min
Dec 25, 3:35 PM CST	Tornado Warning	MOB	Covington, Crenshaw	55 min
Dec 25, 4:07 PM CST	Tornado Warning	MOB	Clarke, Monroe, Wilcox	68 min
Dec 25, 4:12 PM CST	Tornado Warning	MOB	Mobile	33 min
Dec 25, 4:13 PM CST	Special Marine Warning	MOB		17 min
Dec 25, 4:17 PM CST	Tornado Warning	MOB	Clarke, Mobile, Washington	10 min
Dec 25, 4:24 PM CST	Tornado Warning	MOB	Crenshaw	51 min
Dec 25, 4:24 PM CST	Tornado Warning	MOB	Choctaw	66 min
Dec 25, 4:28 PM CST	Tornado Warning	MOB	Wilcox	17 min
Dec 25, 4:39 PM CST	Tornado Warning	MOB	Conecuh, Escambia, Monroe	51 min
Dec 25, 4:41 PM CST	Tornado Warning	MOB	Conecuh, Escambia	49 min
Dec 25, 4:44 PM CST	Tornado Warning Emergency	MOB	Baldwin, Mobile	61 min
Dec 25, 4:47 PM CST	Special Marine Warning	MOB		43 min
Dec 25, 4:50 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Mobile, Washington	55 min
Dec 25, 4:52 PM CST	Tornado Warning	MOB	Choctaw, Clarke, Washington	53 min
Dec 25, 4:52 PM CST	Tornado Warning	MOB	Crenshaw	38 min
Dec 25, 5:00 PM CST	Tornado Warning	MOB	Mobile, Washington	45 min
Dec 25, 5:08 PM CST	Tornado Warning	MOB	Crenshaw	45 min
Dec 25, 5:08 PM CST	Tornado Warning	MOB	Wilcox	52 min
Dec 25, 5:13 PM CST	Tornado Warning	MOB	Covington	18 min
Dec 25, 5:17 PM CST	Tornado Warning	MOB	Clarke, Washington	58 min
Dec 25, 5:23 PM CST	Tornado Warning	MOB	Monroe, Wilcox	23 min
Dec 25, 5:28 PM CST	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Mobile, Washington	62 min
Dec 25, 5:40 PM CST	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Wilcox	65 min
Dec 25, 5:44 PM CST	Tornado Warning	MOB	Clarke, Wilcox	46 min
Dec 25, 5:56 PM CST	Tornado Warning	MOB	Clarke, Washington	64 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; radar from the NEXRAD Level II archive.