Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 21, NWS Birmingham, AL

March 26, 2011Calhoun County, Cleburne County, Alabama

NWS Birmingham, AL issued this tornado warning at Mar 26, 2011, 3:38 PM CDT for Calhoun County, Cleburne County, Alabama. It was in force for 37 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 26, 2011, 3:38 PM CDT (20:38 UTC)
Expired: Mar 26, 2011, 4:15 PM CDT
In force: 37 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Calhoun County, AL, Cleburne County, AL

The radar

The Atlanta radar (KFFC), 101 km from the middle of the area, began a volume at 20:40 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.

What was reported inside it

Time	Report	Where	Remark
Mar 26, 3:42 PM CDT	HAIL 0.75	1 Sw Jacksonville, AL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 26, 12:15 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.6 hours before the alert went out and 106 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 736 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 154 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.

180 
WFUS54 KBMX 262038
TORBMX
ALC015-029-262115-
/O.NEW.KBMX.TO.W.0021.110326T2038Z-110326T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
338 PM CDT SAT MAR 26 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL CALHOUN COUNTY IN EAST CENTRAL ALABAMA...
  NORTHEASTERN CLEBURNE COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 415 PM CDT

* AT 333 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED NEAR JACKSONVILLE...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PIEDMONT...MARS HILLS...MUSCADINE...LIBERTY HILL AND OAK LEVEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW.

&&

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

LAT...LON 3371 8535 3381 8583 3393 8587 3393 8538
      3372 8534
TIME...MOT...LOC 2038Z 266DEG 39KT 3383 8574

$$

61

1 follow-up statement

591 
WWUS54 KBMX 262047
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
347 PM CDT SAT MAR 26 2011

ALC015-029-262115-
/O.CON.KBMX.TO.W.0021.000000T0000Z-110326T2115Z/
CLEBURNE AL-CALHOUN AL-
347 PM CDT SAT MAR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN CALHOUN AND
NORTHEASTERN CLEBURNE COUNTIES UNTIL 415 PM CDT...

AT 345 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 7 MILES EAST OF JACKSONVILLE...MOVING EAST AT 45
MPH.

LOCATIONS IMPACTED INCLUDE...
  PIEDMONT...MARS HILLS...MUSCADINE...LIBERTY HILL...OAK LEVEL AND
  BORDEN SPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

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

LAT...LON 3371 8535 3379 8569 3393 8571 3393 8538
      3372 8534
TIME...MOT...LOC 2047Z 266DEG 39KT 3382 8562

$$

61

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 26, 3:49 AM CDT	Special Weather Statement	BMX	Marion	41 min
Mar 26, 4:09 AM CDT	Severe Thunderstorm Warning	BMX	Marion	51 min
Mar 26, 4:48 AM CDT	Areal Flood Advisory	BMX	Marion, Winston	117 min
Mar 26, 4:57 AM CDT	Severe Thunderstorm Warning	BMX	Marion, Winston	48 min
Mar 26, 6:22 AM CDT	Special Weather Statement	BMX	Marshall	23 min
Mar 26, 7:43 AM CDT	Special Weather Statement	BMX	Marion	47 min
Mar 26, 12:38 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Marengo, Sumter	52 min
Mar 26, 1:05 PM CDT	Tornado Warning	BMX	Greene, Hale, Perry	55 min
Mar 26, 1:25 PM CDT	Tornado Warning	BMX	Fayette, Walker	25 min
Mar 26, 1:36 PM CDT	Tornado Warning	BMX	Dallas, Perry	39 min
Mar 26, 1:46 PM CDT	Severe Thunderstorm Warning	BMX	Chilton, Coosa	59 min
Mar 26, 2:32 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Coosa, Tallapoosa	58 min
Mar 26, 2:46 PM CDT	Severe Thunderstorm Warning	BMX	Coosa, Tallapoosa	44 min
Mar 26, 2:49 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Dallas, Elmore, Perry	41 min
Mar 26, 2:51 PM CDT	Tornado Warning	BMX	St. Clair	24 min
Mar 26, 2:59 PM CDT	Severe Thunderstorm Warning	BMX	Etowah, St. Clair	31 min
Mar 26, 3:02 PM CDT	Severe Thunderstorm Warning	BMX	Chambers, Clay, Randolph, Tallapoosa	43 min
Mar 26, 3:07 PM CDT	Tornado Warning	BMX	Chambers, Tallapoosa	53 min
Mar 26, 3:11 PM CDT	Tornado Warning	BMX	Autauga, Elmore	49 min
Mar 26, 3:15 PM CDT	Tornado Warning	BMX	Calhoun, Etowah	30 min
Mar 26, 3:32 PM CDT	Severe Thunderstorm Warning	BMX	Barbour, Bullock, Lee, Macon, Russell	43 min
Mar 26, 3:36 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Shelby	39 min
Mar 26, 3:40 PM CDT	Severe Thunderstorm Warning	BMX	Chambers	35 min
Mar 26, 3:53 PM CDT	Severe Thunderstorm Warning	BMX	Elmore, Macon, Montgomery, Tallapoosa	45 min
Mar 26, 4:07 PM CDT	Tornado Warning	BMX	Chilton, Shelby	38 min
Mar 26, 4:20 PM CDT	Severe Thunderstorm Warning	BMX	Macon	40 min
Mar 26, 4:39 PM CDT	Tornado Warning	BMX	Coosa, Shelby, Talladega	16 min
Mar 26, 4:51 PM CDT	Severe Thunderstorm Warning	BMX	Barbour, Russell	39 min
Mar 26, 4:54 PM CDT	Severe Thunderstorm Warning	BMX	Bullock, Lee, Macon, Russell	51 min
Mar 26, 5:27 PM CDT	Severe Thunderstorm Warning	BMX	Barbour	33 min
Mar 26, 5:42 PM CDT	Severe Thunderstorm Warning	BMX	Bullock, Macon, Russell	63 min
Mar 26, 5:54 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Etowah	51 min
Mar 26, 6:21 PM CDT	Tornado Warning	BMX	Russell	24 min
Mar 26, 6:23 PM CDT	Tornado Warning	BMX	Etowah	35 min
Mar 26, 6:29 PM CDT	Severe Thunderstorm Warning	BMX	Lamar, Marion	61 min
Mar 26, 6:48 PM CDT	Tornado Warning	BMX	Fayette, Lamar, Marion	25 min
Mar 26, 6:57 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee, Etowah	45 min

Nearby

Tornado Warnings in Alabama, 2011 Every tornado warning in 2011 Tornadoes in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.