Alert archive / Alabama / Tornado Warnings in 2012

Tornado Warning 50, NWS Mobile, AL

August 30, 2012Butler County, Crenshaw County, Alabama

NWS Mobile, AL issued this tornado warning at Aug 30, 2012, 4:09 AM CDT for Butler County, Crenshaw County, Alabama. It was in force for 16 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: Aug 30, 2012, 4:09 AM CDT (09:09 UTC)
Expired: Aug 30, 2012, 4:25 AM CDT
In force: 16 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Butler County, AL, Crenshaw County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 9.2 hours before the alert went out and 185 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: 892 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 901 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 133 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.

677 
WFUS54 KMOB 300909
TORMOB
ALC013-041-300945-
/O.NEW.KMOB.TO.W.0050.120830T0909Z-120830T0945Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
409 AM CDT THU AUG 30 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL BUTLER COUNTY IN SOUTH CENTRAL ALABAMA...
  WESTERN CRENSHAW COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 445 AM CDT

* AT 407 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 14 MILES SOUTHWEST OF LUVERNE...OR 3 MILES
  NORTH OF DOZIER...MOVING NORTH AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RUTLEDGE...           DOZIER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM CDT THURSDAY MORNING
FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3148 8627 3152 8628 3153 8629 3149 8634
      3149 8636 3146 8639 3145 8640 3153 8640
      3153 8649 3186 8659 3191 8633 3148 8626
TIME...MOT...LOC 0910Z 169DEG 27KT 3156 8638

$$

1 follow-up statement

736 
WWUS54 KMOB 300925
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
425 AM CDT THU AUG 30 2012

ALC013-041-300935-
/O.CAN.KMOB.TO.W.0050.000000T0000Z-120830T0945Z/
BUTLER AL-CRENSHAW AL-
425 AM CDT THU AUG 30 2012

...THE TORNADO WARNING HAS BEEN CANCELLED FOR WESTERN CRENSHAW AND
EAST CENTRAL BUTLER COUNTIES...

AT 425 AM CDT...THE STORM THAT PROMPTED THE WARNING FOR WESTERN
CRENSHAW AND EAST CENTRAL BUTLER COUNTIES HAS WEAKENED TO BELOW
SEVERE LIMITS...THUS THE TORNADO WARNING HAS BEEN CANCELLED.

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

LAT...LON 3148 8627 3152 8628 3153 8629 3149 8634
      3149 8636 3146 8639 3145 8640 3153 8640
      3153 8649 3186 8659 3191 8633 3148 8626
TIME...MOT...LOC 0925Z 169DEG 27KT 3167 8641

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 29, 7:27 PM CDT	Tornado Warning	MOB	Monroe, Wilcox	30 min
Aug 29, 7:29 PM CDT	Small Craft Advisory	MOB		33 hr
Aug 29, 7:45 PM CDT	Coastal Flood Warning	MOB		21 hr
Aug 30, 12:22 AM CDT	Flash Flood Warning	MOB	Mobile, Washington	6 hr
Aug 30, 12:52 AM CDT	Wind Advisory	MOB	Washington	16 hr
Aug 30, 2:28 AM CDT	Areal Flood Warning	MOB	Mobile, Washington	12 hr
Aug 30, 2:46 AM CDT	Tornado Warning	MOB	Covington	33 min
Aug 30, 3:53 AM CDT	Tornado Warning	MOB	Covington, Escambia	37 min
Aug 30, 4:31 AM CDT	Tornado Warning	MOB	Washington	29 min
Aug 30, 4:32 AM CDT	Tornado Warning	MOB	Covington	28 min
Aug 30, 6:43 AM CDT	Tornado Warning	MOB	Choctaw, Washington	37 min
Aug 30, 7:41 AM CDT	Tornado Warning	MOB	Mobile	33 min
Aug 30, 8:10 AM CDT	Tornado Warning	MOB	Choctaw, Washington	35 min
Aug 30, 8:13 AM CDT	Tornado Warning	MOB	Washington	32 min
Aug 30, 8:45 AM CDT	Tornado Warning	MOB	Choctaw, Washington	45 min
Aug 30, 9:01 AM CDT	Tornado Warning	MOB	Mobile, Washington	44 min
Aug 30, 10:16 AM CDT	Tornado Warning	MOB	Choctaw, Washington	44 min
Aug 30, 10:56 AM CDT	Tornado Warning	MOB	Choctaw	49 min
Aug 30, 11:32 AM CDT	Severe Thunderstorm Warning	MOB	Mobile	43 min
Aug 30, 11:44 AM CDT	Flash Flood Warning	MOB	Mobile, Washington	6 hr
Aug 30, 11:56 AM CDT	Tornado Warning	MOB	Choctaw	33 min
Aug 30, 4:29 PM CDT	High Surf Advisory	MOB		20 hr

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.