Alert archive / Alabama / Tornado Warnings in 2013

Tornado Warning 1, NWS Birmingham, AL

January 30, 2013Chilton County, Alabama

NWS Birmingham, AL issued this tornado warning at Jan 30, 2013, 5:05 AM CST for Chilton County, Alabama. It was in force for 40 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: Jan 30, 2013, 5:05 AM CST (11:05 UTC)
Expired: Jan 30, 2013, 5:45 AM CST
In force: 40 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

County Chilton County, AL

The radar

The Birmingham radar (KBMX), 27 km from the middle of the area, began a volume at 11:06 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 nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 11.1 hours before the alert went out and 28 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: 216 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 770 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 254 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

259 
WFUS54 KBMX 301105
TORBMX
ALC021-301145-
/O.NEW.KBMX.TO.W.0001.130130T1105Z-130130T1145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
505 AM CST WED JAN 30 2013

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  CHILTON COUNTY IN ALABAMA...

* UNTIL 545 AM CST

* AT 501 AM CST...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED NEAR PARNELL...OR 15 MILES NORTH OF VALLEY GRANDE...AND
  MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  JEMISON...CHILTON COUNTY MOTOR SPORTS PARK...THORSBY...GAP OF THE
  MOUNTAIN...UNION GROVE...LAY LAKE DAM...ISABELLA...LOMAX AND I 65
  REST AREA.

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 3272 8696 3307 8669 3307 8662 3305 8662
      3306 8660 3302 8656 3303 8652 3301 8652
      3298 8651 3296 8652 3267 8688
TIME...MOT...LOC 1105Z 218DEG 44KT 3276 8685

$$

17/KLAWS

3 follow-up statements

778 
WWUS54 KBMX 301113
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
513 AM CST WED JAN 30 2013

ALC021-301145-
/O.CON.KBMX.TO.W.0001.000000T0000Z-130130T1145Z/
CHILTON AL-
513 AM CST WED JAN 30 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN CHILTON COUNTY
UNTIL 545 AM CST...

AT 510 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO.  THIS TORNADO WAS LOCATED NEAR MAPLESVILLE...OR 10 MILES
WEST OF CLANTON...MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  JEMISON...THORSBY...GAP OF THE MOUNTAIN...UNION GROVE...LAY LAKE
  DAM...LOMAX AND I 65 REST AREA.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBER 219...

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

LAT...LON 3281 8687 3307 8669 3307 8662 3305 8662
      3306 8660 3302 8656 3302 8652 3298 8651
      3296 8652 3277 8680
TIME...MOT...LOC 1113Z 218DEG 44KT 3283 8677

$$

17/KLAWS

598 
WWUS54 KBMX 301123
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
523 AM CST WED JAN 30 2013

ALC021-301145-
/O.CON.KBMX.TO.W.0001.000000T0000Z-130130T1145Z/
CHILTON AL-
523 AM CST WED JAN 30 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL CHILTON
COUNTY UNTIL 545 AM CST...

AT 523 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO.  THIS TORNADO WAS LOCATED NEAR THORSBY...OR NEAR JEMISON...
MOVING NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  UNION GROVE.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBER 219...

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

LAT...LON 3288 8680 3307 8669 3307 8662 3305 8662
      3306 8660 3302 8656 3302 8652 3298 8651
      3285 8672
TIME...MOT...LOC 1123Z 215DEG 48KT 3293 8669

$$

17/KLAWS

137 
WWUS54 KBMX 301135
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
535 AM CST WED JAN 30 2013

ALC021-301145-
/O.CAN.KBMX.TO.W.0001.000000T0000Z-130130T1145Z/
CHILTON AL-
535 AM CST WED JAN 30 2013

...THE TORNADO WARNING FOR NORTH CENTRAL CHILTON COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
 HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

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

LAT...LON 3288 8680 3307 8669 3307 8662 3305 8662
      3306 8660 3302 8656 3302 8652 3298 8651
      3285 8672
TIME...MOT...LOC 1135Z 215DEG 48KT 3306 8657

$$

17/KLAWS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 30, 3:54 AM CST	Special Weather Statement	BMX	Marion	66 min
Jan 30, 4:34 AM CST	Severe Thunderstorm Warning	BMX	Lamar, Marion	41 min
Jan 30, 5:23 AM CST	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion, Walker, Winston	52 min
Jan 30, 5:44 AM CST	Tornado Warning	BMX	Winston	31 min
Jan 30, 5:49 AM CST	Tornado Warning	BMX	Tuscaloosa, Walker	41 min
Jan 30, 6:49 AM CST	Severe Thunderstorm Warning	BMX	Tuscaloosa	56 min
Jan 30, 7:28 AM CST	Severe Thunderstorm Warning	BMX	Sumter	47 min
Jan 30, 7:53 AM CST	Severe Thunderstorm Warning	BMX	Chilton, Coosa	52 min
Jan 30, 8:00 AM CST	Severe Thunderstorm Warning	BMX	Hale, Marengo	45 min
Jan 30, 8:15 AM CST	Tornado Warning	BMX	Coosa, Talladega	45 min
Jan 30, 8:19 AM CST	Areal Flood Advisory	BMX	Hale	116 min
Jan 30, 8:46 AM CST	Severe Thunderstorm Warning	BMX	Talladega	29 min
Jan 30, 8:48 AM CST	Areal Flood Advisory	BMX	Bibb, Hale, Jefferson, Shelby	117 min
Jan 30, 9:02 AM CST	Severe Thunderstorm Warning	BMX	Calhoun	28 min
Jan 30, 9:08 AM CST	Tornado Warning	BMX	Calhoun	52 min
Jan 30, 9:20 AM CST	Tornado Warning	BMX	Cleburne	40 min
Jan 30, 9:43 AM CST	Flash Flood Warning	BMX	Jefferson	3 hr
Jan 30, 10:09 AM CST	Severe Thunderstorm Warning	BMX	Autauga, Coosa, Elmore	51 min
Jan 30, 10:12 AM CST	Flash Flood Warning	BMX	Talladega	3 hr
Jan 30, 10:20 AM CST	Flash Flood Warning	BMX	Calhoun, St. Clair	3 hr
Jan 30, 10:24 AM CST	Severe Thunderstorm Warning	BMX	Elmore, Montgomery	51 min
Jan 30, 10:31 AM CST	Severe Thunderstorm Warning	BMX	Clay, Randolph	44 min
Jan 30, 10:42 AM CST	Flash Flood Warning	BMX	Clay, Cleburne	3 hr
Jan 30, 10:53 AM CST	Severe Thunderstorm Warning	BMX	Clay, Tallapoosa	37 min
Jan 30, 10:57 AM CST	Severe Thunderstorm Warning	BMX	Tallapoosa	33 min
Jan 30, 11:08 AM CST	Severe Thunderstorm Warning	BMX	Cleburne, Randolph	37 min
Jan 30, 11:19 AM CST	Severe Thunderstorm Warning	BMX	Elmore, Tallapoosa	26 min
Jan 30, 11:26 AM CST	Severe Thunderstorm Warning	BMX	Chambers, Randolph	49 min
Jan 30, 12:10 PM CST	Tornado Warning	BMX	Bullock, Montgomery, Pike	35 min
Jan 30, 12:26 PM CST	Tornado Warning	BMX	Barbour, Bullock, Russell	34 min
Jan 30, 12:28 PM CST	Areal Flood Advisory	BMX	Chambers, Randolph, Tallapoosa	3 hr
Jan 30, 12:55 PM CST	Areal Flood Warning	BMX	Talladega	3 hr
Jan 30, 2:03 PM CST	Severe Thunderstorm Warning	BMX	Barbour, Lee, Pike, Russell	57 min

Nearby

Tornado Warnings in Alabama, 2013 Every tornado warning in 2013 Tornadoes in 2013

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.