Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 46, NWS Birmingham, AL

March 2, 2012Greene County, Pickens County, Sumter County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 2, 2012, 7:06 PM CST for Greene County, Pickens County, Sumter County, Alabama. It was in force for 39 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, 7:06 PM CST (01:06 UTC)
Expired: Mar 2, 2012, 7:45 PM CST
In force: 39 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Greene County, AL, Pickens County, AL, Sumter County, AL

The radar

The Columbus AFB radar (KGWX), 104 km from the middle of the area, began a volume at 01:07 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
Mar 2, 1:20 PM CST	Tornado Watch	SPC	9 hr
Mar 2, 4:37 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 1.1 hours before the alert went out and 133 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: 754 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1391 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 231 m²/s²
0-3 km storm-relative helicity: 315 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 7.4

Open this sounding in Storm Lab

The text

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

272 
WUUS54 KBMX 030106
SVRBMX
ALC063-107-119-030145-
/O.NEW.KBMX.SV.W.0046.120303T0106Z-120303T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
706 PM CST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN GREENE COUNTY IN WEST CENTRAL ALABAMA...
  SOUTHEASTERN PICKENS COUNTY IN WEST CENTRAL ALABAMA...
  NORTHWESTERN SUMTER COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 745 PM CST

* AT 702 PM CST...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR WEST
  UNION...OR 19 MILES NORTHWEST OF LIVINGSTON...AND MOVING NORTHEAST
  AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PANOLA...NEW WEST GREENE...WEST GREENE...MANTUA...BENEVOLA...
  JENA...GEIGER AND WARSAW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS.

&&

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

LAT...LON 3296 8835 3336 8784 3306 8783 3272 8834
      3276 8838
TIME...MOT...LOC 0106Z 229DEG 43KT 3286 8832

$$

27

2 follow-up statements

401 
WWUS54 KBMX 030125
SVSBMX

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

ALC063-107-119-030145-
/O.CON.KBMX.SV.W.0046.000000T0000Z-120303T0145Z/
GREENE AL-PICKENS AL-SUMTER AL-
725 PM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH CENTRAL
SUMTER...SOUTHEASTERN PICKENS AND NORTHWESTERN GREENE COUNTIES UNTIL
745 PM CST...

AT 721 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR NEW
WEST GREENE...OR 13 MILES SOUTH OF ALICEVILLE...MOVING NORTHEAST AT
60 MPH.

LOCATIONS IMPACTED INCLUDE...
  MANTUA...BENEVOLA...JENA...PLEASANT RIDGE...LEWISTON...SNODDY AND
  PIONEER.

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

LAT...LON 3336 8784 3306 8783 3284 8815 3287 8823
      3294 8825
TIME...MOT...LOC 0125Z 233DEG 53KT 3297 8811

$$

27

377 
WWUS54 KBMX 030138
SVSBMX

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

ALC119-030148-
/O.CAN.KBMX.SV.W.0046.000000T0000Z-120303T0145Z/
SUMTER AL-
738 PM CST FRI MAR 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL SUMTER COUNTY IS
CANCELLED...

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

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

LAT...LON 3336 8784 3306 8783 3296 8797 3296 8798
      3301 8806 3311 8809
TIME...MOT...LOC 0138Z 233DEG 53KT 3308 8792

$$

ALC063-107-030145-
/O.CON.KBMX.SV.W.0046.000000T0000Z-120303T0145Z/
GREENE AL-PICKENS AL-
738 PM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
PICKENS AND NORTH CENTRAL GREENE COUNTIES UNTIL 745 PM CST...

AT 735 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
MANTUA...OR 12 MILES SOUTHEAST OF ALICEVILLE...MOVING NORTHEAST AT 60
MPH.

LOCATIONS IMPACTED INCLUDE...
  JENA AND PIONEER.

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

LAT...LON 3336 8784 3306 8783 3296 8797 3296 8798
      3301 8806 3311 8809
TIME...MOT...LOC 0138Z 233DEG 53KT 3308 8792

$$

27

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, 7:11 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, 11:00 PM CST	Tornado Warning	BMX	Chambers	45 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

Severe Thunderstorm Warnings in Alabama, 2012 Every severe thunderstorm warning 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.