Alert archive / Alabama / Tornado Warnings in 2012

Tornado Warning 37, NWS Birmingham, AL

October 1, 2012Coosa County, Elmore County, Alabama

NWS Birmingham, AL issued this tornado warning at Oct 1, 2012, 4:38 AM CDT for Coosa County, Elmore County, Alabama. It was in force for 23 min. 3 reports 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
Oct 1, 2012, 4:38 AM CDT (09:38 UTC)
Expired
Oct 1, 2012, 5:01 AM CDT
In force
23 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon

Counties Coosa County, AL, Elmore County, AL

What was reported inside it

TimeReportWhereRemark
Oct 1, 4:40 AM CDTTSTM WND DMG3 Wsw Speed, ALTREES WERE BLOWN DOWN NEAR COUNTY ROAD 429 AND THE ELMORE AND COOSA COUNTY LINE. POSSIBLE TORNADO.
Oct 1, 4:47 AM CDTTORNADO 06 Ssw Rockford, ALA TORNADO TOUCHED DOWN BRIEFLY IN ELMORE COUNTY CAUSING MINIMAL TREE DAMAGE THEN TRAVELED INTO COOSA COUNTY. IN COOSA COUNTY, THE TORNADO DROPPED SOME LARGE PINES, THEN A LARGE OAK, WHICH FELL INTO A SMALL BARN AND A COUPLE OF OUTBUILDINGS. THE TORNADO PATH WA
Oct 1, 4:47 AM CDTTORNADO 06 Ssw Rockford, ALA TORNADO TOUCHED DOWN IN COOSA COUNTY JUST SOUTHWEST OF THE PENTONVILLE...UPROOTING SEVERAL PINES AND OAK TREES SPORADICALLY ALONG THE PATH. ONE LARGE OAK FELL INTO A SMALL BARN AND A COUPLE OF OUTBUILDINGS. THE TORNADO PATH WAS 0.5 MILES LONG AND 150 YARDS W

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

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 9.6 hours before the alert went out and 63 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-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 2012-10-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2012-10-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 159 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
569 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
159 m²/s²
0-3 km storm-relative helicity
179 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.

614 
WFUS54 KBMX 010938
TORBMX
ALC037-051-011015-
/O.NEW.KBMX.TO.W.0037.121001T0938Z-121001T1015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
438 AM CDT MON OCT 1 2012

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL COOSA COUNTY IN EAST CENTRAL ALABAMA...
  NORTH CENTRAL ELMORE COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 515 AM CDT

* AT 435 AM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED NEAR TITUS...OR 11 MILES WEST OF EQUALITY...AND MOVING
  NORTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROCKFORD...SPEED...PENTONVILLE...COTTAGE GROVE...CREWSVILLE AND
  HISSOP.

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 3298 8622 3296 8605 3270 8623 3273 8634
TIME...MOT...LOC 0938Z 206DEG 26KT 3275 8627

$$

GRANTHAM
2 follow-up statements
825 
WWUS54 KBMX 010946
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
446 AM CDT MON OCT 1 2012

ALC051-010956-
/O.CAN.KBMX.TO.W.0037.000000T0000Z-121001T1015Z/
ELMORE AL-
446 AM CDT MON OCT 1 2012

...THE TORNADO WARNING FOR NORTH CENTRAL ELMORE 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 3275 8619 3275 8631 3276 8632 3277 8632
      3298 8622 3296 8605
TIME...MOT...LOC 0946Z 206DEG 26KT 3280 8624

$$

ALC037-011015-
/O.CON.KBMX.TO.W.0037.000000T0000Z-121001T1015Z/
COOSA AL-
446 AM CDT MON OCT 1 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL COOSA COUNTY UNTIL
515 AM CDT...

AT 445 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO.  THIS TORNADO WAS LOCATED NEAR SPEED...OR 7 MILES SOUTH OF
ROCKFORD...MOVING NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  ROCKFORD...PENTONVILLE...COTTAGE GROVE...CREWSVILLE AND HISSOP.

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

LAT...LON 3275 8619 3275 8631 3276 8632 3277 8632
      3298 8622 3296 8605
TIME...MOT...LOC 0946Z 206DEG 26KT 3280 8624

$$

GRANTHAM
358 
WWUS54 KBMX 011001
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
501 AM CDT MON OCT 1 2012

ALC037-011011-
/O.CAN.KBMX.TO.W.0037.000000T0000Z-121001T1015Z/
COOSA AL-
501 AM CDT MON OCT 1 2012

...THE TORNADO WARNING FOR CENTRAL COOSA 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.

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

LAT...LON 3275 8619 3275 8631 3276 8632 3277 8632
      3298 8622 3296 8605
TIME...MOT...LOC 1001Z 206DEG 26KT 3290 8618

$$

GRANTHAM

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 4:07 AM CDTSpecial Weather StatementBMXElmore53 min

Nearby

Tornado Warnings in Alabama, 2012Every tornado warning in 2012Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.