Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 39, NWS Birmingham, AL

March 2, 2012Autauga County, Coosa County, Elmore County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 2, 2012, 6:01 PM CST for Autauga County, Coosa County, Elmore County, 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: Mar 2, 2012, 6:01 PM CST (00:01 UTC)
Expired: Mar 2, 2012, 6:45 PM CST
In force: 44 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Autauga County, AL, Coosa County, AL, Elmore 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

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 0.0 hours before the alert went out and 77 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.

930 
WUUS54 KBMX 030001 RRA
SVRBMX
ALC001-037-051-030045-
/O.NEW.KBMX.SV.W.0039.120303T0001Z-120303T0045Z/

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

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN AUTAUGA COUNTY IN ALABAMA...
  SOUTHEASTERN COOSA COUNTY IN EAST CENTRAL ALABAMA...
  NORTHERN ELMORE COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 645 PM CST

* AT 559 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 MARBURY...
  OR 15 MILES NORTH OF MILLBROOK...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EQUALITY...TITUS...WELONA...WEOKA MILLS...TEN CEDAR ESTATES...
  SPEED...PENTONVILLE AND NIXBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CST SATURDAY MORNING
FOR ALABAMA.

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

LAT...LON 3270 8591 3266 8591 3263 8649 3271 8651
      3271 8641 3275 8641 3275 8637 3278 8641
      3293 8601 3276 8601 3275 8598 3277 8596
      3275 8595 3274 8588
TIME...MOT...LOC 0002Z 251DEG 39KT 3270 8639

$$

87

2 follow-up statements

050 
WWUS54 KBMX 030016
SVSBMX

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

ALC001-030026-
/O.CAN.KBMX.SV.W.0039.000000T0000Z-120303T0045Z/
AUTAUGA AL-
616 PM CST FRI MAR 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN AUTAUGA 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 3270 8591 3269 8634 3275 8637 3278 8641
      3293 8601 3276 8601 3275 8598 3277 8596
      3275 8595 3274 8588
TIME...MOT...LOC 0016Z 252DEG 30KT 3273 8627

$$

ALC037-051-030045-
/O.CON.KBMX.SV.W.0039.000000T0000Z-120303T0045Z/
COOSA AL-ELMORE AL-
616 PM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
ELMORE AND SOUTHEASTERN COOSA COUNTIES UNTIL 645 PM CST...

AT 614 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
TITUS...OR 11 MILES WEST OF EQUALITY...MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  EQUALITY...SPEED...PENTONVILLE...COTTAGE GROVE...NIXBURG...HIGHWAY
  9 AND HIGHWAY 22...MARTIN LAKE AT KOWALIGA...RAY AND FISHPOND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

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

LAT...LON 3270 8591 3269 8634 3275 8637 3278 8641
      3293 8601 3276 8601 3275 8598 3277 8596
      3275 8595 3274 8588
TIME...MOT...LOC 0016Z 252DEG 30KT 3273 8627

$$

87

290 
WWUS54 KBMX 030028
SVSBMX

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

ALC037-051-030045-
/O.CON.KBMX.SV.W.0039.000000T0000Z-120303T0045Z/
COOSA AL-ELMORE AL-
628 PM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
ELMORE AND SOUTHEASTERN COOSA COUNTIES UNTIL 645 PM CST...

AT 624 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
SPEED...OR 7 MILES WEST OF EQUALITY...MOVING NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  EQUALITY...NIXBURG...COTTAGE GROVE...HIGHWAY 9 AND HIGHWAY 22...
  MARTIN LAKE AT KOWALIGA...FISHPOND AND RAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

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

LAT...LON 3272 8629 3278 8631 3293 8601 3276 8601
      3275 8598 3277 8596 3275 8595 3274 8588
TIME...MOT...LOC 0028Z 245DEG 28KT 3278 8618

$$

87

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, 6:05 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, 11:00 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.