Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 137, NWS Birmingham, AL

April 27, 2011Chambers County, Lee County, Tallapoosa County, Alabama

NWS Birmingham, AL issued this tornado warning at Apr 27, 2011, 9:37 PM CDT for Chambers County, Lee County, Tallapoosa County, Alabama. It was in force for 38 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: Apr 27, 2011, 9:37 PM CDT (02:37 UTC)
Expired: Apr 27, 2011, 10:15 PM CDT
In force: 38 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Chambers County, AL, Lee County, AL, Tallapoosa 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
Apr 27, 5:52 PM CDT	Tornado Watch PDS	SPC	9 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 2.6 hours before the alert went out and 91 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: 1215 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 1433 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 244 m²/s²
0-3 km storm-relative helicity: 408 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 15.2

Open this sounding in Storm Lab

The text

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

263 
WFUS54 KBMX 280237
TORBMX
ALC017-081-123-280315-
/O.NEW.KBMX.TO.W.0137.110428T0237Z-110428T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
937 PM CDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  CHAMBERS COUNTY IN EAST CENTRAL ALABAMA...
  NORTHWESTERN LEE COUNTY IN EAST CENTRAL ALABAMA...
  EAST CENTRAL TALLAPOOSA COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 1015 PM CDT

* AT 937 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED NEAR WAVERLY...OR 6 MILES SOUTH OF CAMP HILL...AND
  MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LAFAYETTE...LANETT...STROUD...OAK BOWERY...STURKIE...WEST
  CHAMBERS...CHAMBERS COUNTY LAKE...CUSSETA...BUFFALO AND KELLAM
  HILL.

THIS INCLUDES...
INTERSTATE 85 EXIT NUMBER 79...

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.

LAT...LON 3285 8516 3265 8562 3275 8569 3312 8526
      3312 8523 3293 8518 3290 8518 3289 8517
TIME...MOT...LOC 0237Z 233DEG 49KT 3276 8555

$$

17

2 follow-up statements

396 
WWUS54 KBMX 280248
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
948 PM CDT WED APR 27 2011

ALC081-123-280258-
/O.CAN.KBMX.TO.W.0137.000000T0000Z-110428T0315Z/
LEE AL-TALLAPOOSA AL-
948 PM CDT WED APR 27 2011

...THE TORNADO WARNING FOR EAST CENTRAL TALLAPOOSA AND NORTHWESTERN
LEE COUNTIES 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 3285 8516 3277 8534 3274 8547 3284 8551
      3312 8526 3312 8523 3293 8518 3290 8518
      3289 8517
TIME...MOT...LOC 0248Z 233DEG 49KT 3283 8541

$$

ALC017-280315-
/O.CON.KBMX.TO.W.0137.000000T0000Z-110428T0315Z/
CHAMBERS AL-
948 PM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CHAMBERS COUNTY UNTIL 1015
PM CDT...

AT 948 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR STURKIE...OR 6 MILES SOUTH OF LAFAYETTE...
MOVING NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  LAFAYETTE...LANETT...CHAMBERS COUNTY LAKE...CUSSETA...BUFFALO...
  KELLAM HILL...HUGULEY...DENSON...FREDONIA AND LAKEVIEW.

THIS INCLUDES...
INTERSTATE 85 EXIT NUMBER 79...

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

LAT...LON 3285 8516 3277 8534 3274 8547 3284 8551
      3312 8526 3312 8523 3293 8518 3290 8518
      3289 8517
TIME...MOT...LOC 0248Z 233DEG 49KT 3283 8541

$$

17

187 
WWUS54 KBMX 280258
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
958 PM CDT WED APR 27 2011

ALC017-280315-
/O.CON.KBMX.TO.W.0137.000000T0000Z-110428T0315Z/
CHAMBERS AL-
958 PM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL CHAMBERS
COUNTY UNTIL 1015 PM CDT...

AT 959 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR CHAMBERS COUNTY LAKE...OR 7 MILES WEST OF
LANETT...MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  LANETT...LAKEVIEW...VEASEY CREEK PARK...AMITY PARK...I 85 WELCOME
  CENTER AT LANETT...SOUTHERN HARBOR...STROUD CREEK AND ROCKY POINT.

THIS INCLUDES...
INTERSTATE 85 EXIT NUMBER 79...

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

LAT...LON 3285 8516 3279 8530 3279 8536 3285 8541
      3307 8522 3293 8518 3290 8518 3289 8517
TIME...MOT...LOC 0259Z 240DEG 45KT 3286 8526

$$

17

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 7:07 PM CDT	Tornado Warning Emergency	BMX	Bibb, Chilton, Shelby	53 min
Apr 27, 7:17 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Marion, Walker, Winston	43 min
Apr 27, 7:17 PM CDT	Tornado Warning Emergency	BMX	Calhoun, Cherokee, Etowah	43 min
Apr 27, 7:28 PM CDT	Tornado Warning	BMX	Hale, Marengo, Sumter	62 min
Apr 27, 7:31 PM CDT	Tornado Warning	BMX	Calhoun, Cleburne, Etowah, St. Clair, Shelby, Talladega	59 min
Apr 27, 7:33 PM CDT	Tornado Warning	BMX	Autauga, Coosa, Elmore, Tallapoosa	57 min
Apr 27, 7:54 PM CDT	Tornado Warning	BMX	St. Clair, Shelby, Talladega	51 min
Apr 27, 8:02 PM CDT	Tornado Warning	BMX	Clay, Cleburne, Coosa, Randolph, Tallapoosa	58 min
Apr 27, 8:03 PM CDT	Tornado Warning	BMX	Blount	15 min
Apr 27, 8:11 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Sumter	64 min
Apr 27, 8:17 PM CDT	Tornado Warning	BMX	Dallas, Hale, Marengo, Perry	58 min
Apr 27, 8:18 PM CDT	Tornado Warning	BMX	Calhoun, Cherokee, Cleburne	42 min
Apr 27, 8:20 PM CDT	Tornado Warning Emergency	BMX	Chambers, Elmore, Lee, Tallapoosa	55 min
Apr 27, 8:21 PM CDT	Tornado Warning	BMX	Calhoun, St. Clair, Talladega	21 min
Apr 27, 9:00 PM CDT	Tornado Warning Emergency	BMX	Chambers	60 min
Apr 27, 9:03 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	42 min
Apr 27, 9:03 PM CDT	Tornado Warning	BMX	Autauga, Chilton, Dallas, Perry	57 min
Apr 27, 9:36 PM CDT	Severe Thunderstorm Warning	BMX	Dallas, Hale, Marengo, Perry	54 min
Apr 27, 9:46 PM CDT	Tornado Warning	BMX	Chilton, Coosa, Tallapoosa	37 min
Apr 27, 9:51 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee, Etowah	39 min
Apr 27, 9:55 PM CDT	Areal Flood Advisory	BMX	Dallas, Marengo, Perry	3 hr
Apr 27, 10:18 PM CDT	Severe Thunderstorm Warning	BMX	Lee	27 min
Apr 27, 10:31 PM CDT	Tornado Warning	BMX	Lee	12 min
Apr 27, 10:39 PM CDT	Severe Thunderstorm Warning	BMX	Chambers, Clay, Coosa, Elmore, Randolph, Tallapoosa	49 min
Apr 27, 11:15 PM CDT	Severe Thunderstorm Warning	BMX	Dallas, Lowndes	45 min
Apr 27, 11:31 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Elmore, Lowndes, Montgomery	44 min
Apr 28, 12:01 AM CDT	Severe Thunderstorm Warning	BMX	Autauga, Bullock, Elmore, Lee, Lowndes, Macon and 3 more	49 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; the sounding from the Mesonet's radiosonde archive.