Alert archive / Alabama / Tornado Warnings in 2012

Tornado Warning 30, NWS Birmingham, AL

March 2, 2012Chambers County, Alabama

NWS Birmingham, AL issued this tornado warning at Mar 2, 2012, 11:00 PM CST for Chambers 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: Mar 2, 2012, 11:00 PM CST (05:00 UTC)
Expired: Mar 2, 2012, 11:45 PM CST
In force: 45 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

County Chambers 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
Mar 2, 4:37 PM CST	Tornado Watch	SPC	7 hr
Mar 2, 10:56 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 5.0 hours before the alert went out and 95 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: 540 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 948 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 212 m²/s²
0-3 km storm-relative helicity: 274 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 4.4

Open this sounding in Storm Lab

The text

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

942 
WFUS54 KBMX 030500
TORBMX
ALC017-030545-
/O.NEW.KBMX.TO.W.0030.120303T0500Z-120303T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1100 PM CST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN CHAMBERS COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 1145 PM CST

* AT 1058 PM CST...EMERGENCY MANAGEMENT REPORTED A TORNADO 8 MILES
  NORTHWEST OF RIDGE GROVE...OR 9 MILES NORTHEAST OF DADEVILLE.
  DOPPLER RADAR SHOWED THIS TORNADO MOVING EAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  STROUD...TRAMMEL CROSSROADS...PENTON...BUFFALO...WHITE PLAINS...
  WELCH...FREDONIA...POST OAK FORKS...VEASEY CREEK PARK AND AMITY
  PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING.

&&

TO REPORT SEVERE WEATHER...
CALL 1-800-856-0758.

LAT...LON 3290 8559 3304 8559 3311 8537 3311 8522
      3296 8520
TIME...MOT...LOC 0500Z 253DEG 52KT 3295 8564

$$

17

3 follow-up statements

434 
WWUS54 KBMX 030512
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1112 PM CST FRI MAR 2 2012

ALC017-030545-
/O.CON.KBMX.TO.W.0030.000000T0000Z-120303T0545Z/
CHAMBERS AL-
1112 PM CST FRI MAR 2 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN CHAMBERS COUNTY
UNTIL 1145 PM CST...

AT 1108 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THE POTENTIAL FOR A DAMAGING TORNADO ON THE GROUND.  IF YOU ARE IN 
THIS WARNING...YOU NEED TO BE IN AN UNDERGROUND SHELTER RIGHT NOW. 
THIS DANGEROUS STORM WAS LOCATED NEAR TRAMMEL CROSSROADS...OR 9 
MILES NORTHWEST OF LAFAYETTE...MOVING EAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  STROUD...PENTON...BUFFALO...WHITE PLAINS...FREDONIA...POST OAK
  FORKS...VEASEY CREEK PARK...AMITY PARK...STROUD CREEK AND ROCKY
  POINT.

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3292 8555 3301 8558 3308 8535 3311 8522
      3296 8520
TIME...MOT...LOC 0511Z 255DEG 47KT 3298 8549

$$

17

461 
WWUS54 KBMX 030522
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1122 PM CST FRI MAR 2 2012

ALC017-030545-
/O.CON.KBMX.TO.W.0030.000000T0000Z-120303T0545Z/
CHAMBERS AL-
1122 PM CST FRI MAR 2 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL CHAMBERS
COUNTY UNTIL 1145 PM CST...

AT 1118 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
POSSIBLE TORNADO ON THE GROUND.  IF YOU ARE IN THIS WARNING...YOU 
NEED TO BE IN AN UNDERGROUND SHELTER RIGHT NOW.  THIS DANGEROUS 
STORM WAS LOCATED NEAR WHITE PLAINS...OR 5 MILES SOUTHWEST OF 
STROUD...MOVING EAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  STROUD...POST OAK FORKS AND STROUD CREEK.

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3297 8544 3304 8547 3308 8535 3311 8522
      3300 8521
TIME...MOT...LOC 0521Z 252DEG 45KT 3303 8536

$$

17

494 
WWUS54 KBMX 030536
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1136 PM CST FRI MAR 2 2012

ALC017-030546-
/O.EXP.KBMX.TO.W.0030.000000T0000Z-120303T0545Z/
CHAMBERS AL-
1136 PM CST FRI MAR 2 2012

...THE TORNADO WARNING FOR NORTH CENTRAL CHAMBERS COUNTY WILL EXPIRE
AT 1145 PM CST...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3297 8544 3304 8547 3308 8535 3311 8522
      3300 8521
TIME...MOT...LOC 0536Z 252DEG 45KT 3308 8514

$$

17

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 2, 6:01 PM CST	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion, Winston	44 min
Mar 2, 6:01 PM CST	Severe Thunderstorm Warning	BMX	Autauga, Coosa, Elmore	44 min
Mar 2, 6:05 PM CST	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Walker	43 min
Mar 2, 6:11 PM CST	Severe Thunderstorm Warning	BMX	Calhoun, Cleburne	49 min
Mar 2, 6:19 PM CST	Tornado Warning	BMX	Calhoun, Cleburne	41 min
Mar 2, 6:22 PM CST	Tornado Warning	BMX	Lowndes, Montgomery	15 min
Mar 2, 6:33 PM CST	Severe Thunderstorm Warning	BMX	Blount, Etowah	42 min
Mar 2, 6:44 PM CST	Severe Thunderstorm Warning	BMX	Bibb, Jefferson, Shelby, Tuscaloosa	46 min
Mar 2, 6:44 PM CST	Severe Thunderstorm Warning	BMX	Sumter	46 min
Mar 2, 6:46 PM CST	Severe Thunderstorm Warning	BMX	Winston	29 min
Mar 2, 7:06 PM CST	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	39 min
Mar 2, 7:11 PM CST	Severe Thunderstorm Warning	BMX	Cherokee, Etowah	49 min
Mar 2, 7:15 PM CST	Severe Thunderstorm Warning	BMX	Jefferson, St. Clair	45 min
Mar 2, 7:21 PM CST	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	39 min
Mar 2, 7:36 PM CST	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Pickens	39 min
Mar 2, 7:49 PM CST	Severe Thunderstorm Warning	BMX	Jefferson, Tuscaloosa, Walker	41 min
Mar 2, 7:51 PM CST	Severe Thunderstorm Warning	BMX	Marion, Walker, Winston	39 min
Mar 2, 7:59 PM CST	Severe Thunderstorm Warning	BMX	Fayette, Tuscaloosa, Walker	46 min
Mar 2, 8:13 PM CST	Severe Thunderstorm Warning	BMX	Fayette, Walker	34 min
Mar 2, 8:17 PM CST	Severe Thunderstorm Warning	BMX	Fayette, Lamar	28 min
Mar 2, 8:38 PM CST	Areal Flood Advisory	BMX	Greene, Hale, Marengo, Sumter	112 min
Mar 2, 8:38 PM CST	Tornado Warning	BMX	Dallas, Hale, Marengo, Perry	52 min
Mar 2, 8:56 PM CST	Severe Thunderstorm Warning	BMX	Marion	49 min
Mar 2, 9:13 PM CST	Tornado Warning	BMX	Autauga, Chilton, Dallas, Perry	47 min
Mar 2, 9:16 PM CST	Areal Flood Advisory	BMX	Walker, Winston	119 min
Mar 2, 9:45 PM CST	Tornado Warning	BMX	Autauga, Chilton	29 min
Mar 2, 9:47 PM CST	Areal Flood Advisory	BMX	Blount	3 hr
Mar 2, 10:00 PM CST	Severe Thunderstorm Warning	BMX	Clay, Cleburne, Randolph, Talladega	45 min
Mar 2, 10:08 PM CST	Tornado Warning	BMX	Clay, Cleburne, Randolph, Talladega	24 min
Mar 2, 10:11 PM CST	Tornado Warning	BMX	Coosa	31 min
Mar 2, 10:22 PM CST	Severe Thunderstorm Warning	BMX	Jefferson	38 min
Mar 2, 10:32 PM CST	Areal Flood Advisory	BMX	Talladega	118 min
Mar 2, 10:34 PM CST	Tornado Warning	BMX	Tallapoosa	41 min
Mar 2, 10:37 PM CST	Areal Flood Advisory	BMX	Jefferson	3 hr
Mar 2, 10:45 PM CST	Severe Thunderstorm Warning	BMX	Cherokee, Etowah	45 min
Mar 2, 10:46 PM CST	Areal Flood Advisory	BMX	Blount, Etowah, St. Clair	3 hr
Mar 2, 10:52 PM CST	Severe Thunderstorm Warning	BMX	Jefferson, St. Clair, Shelby	23 min
Mar 2, 11:05 PM CST	Areal Flood Advisory	BMX	Dallas, Greene, Hale, Marengo, Sumter	3 hr
Mar 2, 11:15 PM CST	Areal Flood Advisory	BMX	Bibb, St. Clair, Shelby, Talladega	3 hr
Mar 2, 11:47 PM CST	Severe Thunderstorm Warning	BMX	Calhoun, Cleburne	15 min
Mar 3, 12:25 AM CST	Areal Flood Advisory	BMX	Chilton, Clay, Coosa, Perry, Talladega, Tallapoosa	3 hr
Mar 3, 4:12 AM CST	Areal Flood Advisory	BMX	Bibb, Chilton, Dallas, Greene, Hale, Marengo and 2 more	3 hr
Mar 3, 4:27 AM CST	Areal Flood Advisory	BMX	Clay, Coosa, St. Clair, Shelby, Talladega, Tallapoosa	3 hr
Mar 3, 4:33 AM CST	Areal Flood Advisory	BMX	Calhoun, Chambers, Cleburne, Randolph, St. Clair	3 hr
Mar 3, 5:15 AM CST	Special Weather Statement	BMX	Russell	45 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.