Alert archive / Alabama / Tornado Warnings in 2014

Tornado Warning 48, NWS Birmingham, AL

December 23, 2014Bibb County, Chilton County, Perry County, Alabama

NWS Birmingham, AL issued this tornado warning at Dec 23, 2014, 6:01 PM CST for Bibb County, Chilton County, Perry County, Alabama. It was in force for 23 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: Dec 23, 2014, 6:01 PM CST (00:01 UTC)
Expired: Dec 23, 2014, 6:24 PM CST
In force: 23 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Bibb County, AL, Chilton County, AL, Perry County, AL

The radar

The Birmingham radar (KBMX), 22 km from the middle of the area, began a volume at 00:01 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
Dec 23, 6:19 PM CST	TSTM WND DMG	1 Ssw Jemison, AL	TREES DOWN ALONG HIGHWAY 191 NEAR JEMISON

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
Dec 23, 2:47 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 0.0 hours before the alert went out and 23 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: 18 J/kg
Mixed-layer CIN: -216 J/kg
Mixed-layer LCL: 507 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 505 m²/s²
0-3 km storm-relative helicity: 643 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

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

940 
WFUS54 KBMX 240001
TORBMX
ALC007-021-105-240045-
/O.NEW.KBMX.TO.W.0048.141224T0001Z-141224T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
601 PM CST TUE DEC 23 2014

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN BIBB COUNTY IN ALABAMA...
  NORTHERN CHILTON COUNTY IN ALABAMA...
  NORTHEASTERN PERRY COUNTY IN ALABAMA...

* UNTIL 645 PM CST

* AT 558 PM CST...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED 7 MILES SOUTHWEST OF TALLADEGA NATIONAL FOREST...OR 9
  MILES SOUTHEAST OF BRENT...AND MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  JEMISON...CLANTON...TALLADEGA NATIONAL FOREST...LAWLEY...ASHBY...
  BRIERFIELD IRONWORKS PARK...CHILTON COUNTY MOTOR SPORTS PARK...
  THORSBY...UNION GROVE AND GAP OF THE MOUNTAIN.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 212 THROUGH 219...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 OR TWEET YOUR REPORT USING HASHTAG ALWX

LAT...LON 3305 8692 3305 8688 3307 8688 3307 8661
      3306 8662 3302 8656 3302 8654 3297 8651
      3293 8652 3287 8648 3287 8646 3276 8712
      3284 8716
TIME...MOT...LOC 0001Z 251DEG 41KT 3283 8706

$$

05/MA

2 follow-up statements

248 
WWUS54 KBMX 240008
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
608 PM CST TUE DEC 23 2014

ALC105-240018-
/O.CAN.KBMX.TO.W.0048.000000T0000Z-141224T0045Z/
PERRY AL-
608 PM CST TUE DEC 23 2014

...THE TORNADO WARNING FOR NORTHEASTERN PERRY 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 3278 8702 3286 8703 3305 8692 3305 8688
      3307 8688 3307 8661 3306 8662 3302 8656
      3302 8654 3297 8651 3293 8652 3287 8648
TIME...MOT...LOC 0008Z 264DEG 40KT 3283 8696

$$

ALC007-021-240045-
/O.CON.KBMX.TO.W.0048.000000T0000Z-141224T0045Z/
BIBB AL-CHILTON AL-
608 PM CST TUE DEC 23 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN CHILTON AND
SOUTHEASTERN BIBB COUNTIES UNTIL 645 PM CST...

AT 606 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO.  THIS TORNADO WAS LOCATED NEAR LAWLEY...OR 13 MILES
SOUTHEAST OF BRENT...MOVING EAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  JEMISON...LAWLEY...ASHBY...BRIERFIELD IRONWORKS PARK...CHILTON
  COUNTY MOTOR SPORTS PARK...THORSBY...UNION GROVE...GAP OF THE
  MOUNTAIN...LAY LAKE DAM AND RANDOLPH.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 212 THROUGH 219...

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

LAT...LON 3278 8702 3286 8703 3305 8692 3305 8688
      3307 8688 3307 8661 3306 8662 3302 8656
      3302 8654 3297 8651 3293 8652 3287 8648
TIME...MOT...LOC 0008Z 264DEG 40KT 3283 8696

$$

05/MA

508 
WWUS54 KBMX 240024
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
624 PM CST TUE DEC 23 2014

ALC007-021-240031-
/O.CAN.KBMX.TO.W.0048.000000T0000Z-141224T0045Z/
BIBB AL-CHILTON AL-
624 PM CST TUE DEC 23 2014

...THE TORNADO WARNING FOR NORTHERN CHILTON AND SOUTHEASTERN BIBB
COUNTIES IS CANCELLED...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
BEEN CANCELLED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN
EFFECT FOR THE AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 11 PM CDT

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

LAT...LON 3278 8702 3286 8703 3305 8692 3305 8688
      3307 8688 3307 8661 3306 8662 3302 8656
      3302 8654 3297 8651 3293 8652 3287 8648
TIME...MOT...LOC 0021Z 264DEG 40KT 3284 8679

$$

05/MA!

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 23, 6:08 PM CST	Areal Flood Advisory	BMX	Fayette, Lamar, Marion, Pickens, Tuscaloosa, Walker and 1 more	3 hr
Dec 23, 6:16 PM CST	Areal Flood Advisory	BMX	Autauga, Chilton, Coosa, Dallas, Lowndes, Shelby and 1 more	59 min
Dec 23, 6:18 PM CST	Severe Thunderstorm Warning	BMX	Autauga, Chilton, Dallas, Lowndes	57 min
Dec 23, 6:41 PM CST	Flash Flood Warning	BMX	Lamar	3 hr
Dec 23, 6:41 PM CST	Special Weather Statement	BMX	Clay, Coosa, Talladega, Tallapoosa	49 min
Dec 23, 6:44 PM CST	Flash Flood Warning	BMX	Jefferson	3 hr
Dec 23, 6:50 PM CST	Flash Flood Warning	BMX	Marion, Winston	3 hr
Dec 23, 6:55 PM CST	Special Weather Statement	BMX	Bullock, Elmore, Macon, Montgomery	65 min
Dec 23, 6:57 PM CST	Areal Flood Advisory	BMX	Bullock, Clay, Elmore, Montgomery, Talladega, Tallapoosa	63 min
Dec 23, 7:38 PM CST	Special Weather Statement	BMX	Chambers, Randolph, Tallapoosa	52 min
Dec 23, 7:58 PM CST	Special Weather Statement	BMX	Barbour, Bullock, Lee, Macon, Pike, Russell	62 min
Dec 23, 9:00 PM CST	Special Weather Statement	BMX	Barbour, Russell	60 min
Dec 23, 9:48 PM CST	Flash Flood Warning	BMX	Lamar	3 hr
Dec 24, 10:01 AM CST	River Flood Warning	BMX	Greene, Hale, Marengo, Pickens, Sumter	58 hr

Nearby

Tornado Warnings in Alabama, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.