Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 125, NWS Birmingham, AL

April 27, 2011Hale County, Marengo County, Sumter County, Alabama

NWS Birmingham, AL issued this tornado warning at Apr 27, 2011, 7:28 PM CDT for Hale County, Marengo County, Sumter County, Alabama. It was in force for 62 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, 7:28 PM CDT (00:28 UTC)
Expired
Apr 27, 2011, 8:30 PM CDT
In force
62 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon

Counties Hale County, AL, Marengo County, AL, Sumter County, AL

The radar

The Birmingham radar (KBMX), 137 km from the middle of the area, began a volume at 00:31 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 27, 1:42 PM CDTTornado Watch PDSSPC8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 0.5 hours before the alert went out and 137 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 2011-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3065 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2011-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 448 square meters per square second.1939587897Sfc1 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
3065 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
711 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
448 m²/s²
0-3 km storm-relative helicity
480 m²/s²
Significant tornado parameter
9.6
Supercell composite
33.6

Open this sounding in Storm Lab

The text

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

663 
WFUS54 KBMX 280028
TORBMX
ALC065-091-119-280130-
/O.NEW.KBMX.TO.W.0125.110428T0028Z-110428T0130Z/

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

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN HALE COUNTY IN WEST CENTRAL ALABAMA...
  MARENGO COUNTY IN SOUTHWEST ALABAMA...
  SOUTHEASTERN SUMTER COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 830 PM CDT

* AT 727 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO AND 
DAMAGE 6 MILES SOUTHEAST OF KINTERBISH...OR 15 MILES SOUTHEAST OF 
CUBA. DOPPLER RADAR SHOWED THIS TORNADO MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LINDEN...DEMOPOLIS...MYRTLEWOOD...JEFFERSON...PIN HOOK...MILLER...
  CHICKASAW STATE PARK...THOMASTON...DAYTON AND FAUNSDALE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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 3262 8756 3232 8753 3227 8751 3216 8751
      3213 8753 3215 8802 3226 8801 3228 8803
      3231 8800 3231 8832 3233 8832
TIME...MOT...LOC 0028Z 260DEG 34KT 3226 8822

$$

17
3 follow-up statements
686 
WWUS54 KBMX 280041
SVSBMX

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

ALC065-091-119-280130-
/O.CON.KBMX.TO.W.0125.000000T0000Z-110428T0130Z/
MARENGO AL-SUMTER AL-HALE AL-
741 PM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN HALE...
SOUTHEASTERN SUMTER AND MARENGO COUNTIES UNTIL 830 PM CDT...

AT 736 PM CDT...EMERGENCY MANAGEMENT REPORTED A TORNADO WITH DAMAGE 
IN THE AREA.  THIS TORNADO WAS LOCATED NEAR INDIAN SPRINGS...OR 16 
MILES SOUTHEAST OF CUBA...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  LINDEN...MYRTLEWOOD...JEFFERSON...PIN HOOK...MILLER...CHICKASAW
  STATE PARK...MAGNOLIA...THOMASTON...DAYTON AND CONSUL.

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

LAT...LON 3262 8756 3232 8753 3227 8751 3216 8751
      3213 8753 3215 8802 3226 8801 3228 8803
      3231 8800 3231 8832 3233 8832
TIME...MOT...LOC 0041Z 256DEG 35KT 3229 8811

$$

17!
810 
WWUS54 KBMX 280059
SVSBMX

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

ALC119-280109-
/O.CAN.KBMX.TO.W.0125.000000T0000Z-110428T0130Z/
SUMTER AL-
759 PM CDT WED APR 27 2011

...THE TORNADO WARNING FOR SOUTHEASTERN SUMTER 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 3262 8756 3232 8753 3227 8751 3217 8751
      3213 8753 3215 8802 3226 8801 3228 8803
      3232 8798 3232 8793 3234 8796 3237 8802
      3244 8803
TIME...MOT...LOC 0059Z 256DEG 35KT 3233 8791

$$

ALC065-091-280130-
/O.CON.KBMX.TO.W.0125.000000T0000Z-110428T0130Z/
MARENGO AL-HALE AL-
759 PM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN HALE AND
MARENGO COUNTIES UNTIL 830 PM CDT...

AT 754 PM CDT...EMERGENCY MANAGEMENT REPORTED A TORNADO.  THIS
TORNADO WAS LOCATED NEAR MYRTLEWOOD...OR 10 MILES WEST OF LINDEN...
MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  LINDEN...JEFFERSON...PIN HOOK...MILLER...CHICKASAW STATE PARK...
  MAGNOLIA...THOMASTON...DAYTON...CONSUL AND FAUNSDALE.

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

LAT...LON 3262 8756 3232 8753 3227 8751 3217 8751
      3213 8753 3215 8802 3226 8801 3228 8803
      3232 8798 3232 8793 3234 8796 3237 8802
      3244 8803
TIME...MOT...LOC 0059Z 256DEG 35KT 3233 8791

$$

17
475 
WWUS54 KBMX 280113
SVSBMX

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

ALC065-091-280130-
/O.CON.KBMX.TO.W.0125.000000T0000Z-110428T0130Z/
MARENGO AL-HALE AL-
813 PM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL HALE AND
NORTHEASTERN MARENGO COUNTIES UNTIL 830 PM CDT...

AT 809 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR CHICKASAW STATE PARK...OR 6 MILES NORTH OF
LINDEN...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  DAYTON...FAUNSDALE...GALLION AND LANEVILLE.

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

LAT...LON 3227 8751 3231 8784 3234 8788 3237 8788
      3244 8786 3248 8783 3262 8756 3232 8753
TIME...MOT...LOC 0113Z 253DEG 33KT 3240 8777

$$

17

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 7:07 PM CDTTornado Warning EmergencyBMXBibb, Chilton, Shelby53 min
Apr 27, 7:17 PM CDTSevere Thunderstorm WarningBMXFayette, Marion, Walker, Winston43 min
Apr 27, 7:17 PM CDTTornado Warning EmergencyBMXCalhoun, Cherokee, Etowah43 min
Apr 27, 7:31 PM CDTTornado WarningBMXCalhoun, Cleburne, Etowah, St. Clair, Shelby, Talladega59 min
Apr 27, 7:33 PM CDTTornado WarningBMXAutauga, Coosa, Elmore, Tallapoosa57 min
Apr 27, 7:54 PM CDTTornado WarningBMXSt. Clair, Shelby, Talladega51 min
Apr 27, 8:02 PM CDTTornado WarningBMXClay, Cleburne, Coosa, Randolph, Tallapoosa58 min
Apr 27, 8:03 PM CDTTornado WarningBMXBlount15 min
Apr 27, 8:11 PM CDTSevere Thunderstorm WarningBMXGreene, Sumter64 min
Apr 27, 8:17 PM CDTTornado WarningBMXDallas, Hale, Marengo, Perry58 min
Apr 27, 8:18 PM CDTTornado WarningBMXCalhoun, Cherokee, Cleburne42 min
Apr 27, 8:20 PM CDTTornado Warning EmergencyBMXChambers, Elmore, Lee, Tallapoosa55 min
Apr 27, 8:21 PM CDTTornado WarningBMXCalhoun, St. Clair, Talladega21 min
Apr 27, 9:00 PM CDTTornado Warning EmergencyBMXChambers60 min
Apr 27, 9:03 PM CDTSevere Thunderstorm WarningBMXCherokee42 min
Apr 27, 9:03 PM CDTTornado WarningBMXAutauga, Chilton, Dallas, Perry57 min
Apr 27, 9:36 PM CDTSevere Thunderstorm WarningBMXDallas, Hale, Marengo, Perry54 min
Apr 27, 9:37 PM CDTTornado WarningBMXChambers, Lee, Tallapoosa38 min
Apr 27, 9:46 PM CDTTornado WarningBMXChilton, Coosa, Tallapoosa37 min
Apr 27, 9:51 PM CDTSevere Thunderstorm WarningBMXCalhoun, Cherokee, Etowah39 min
Apr 27, 9:55 PM CDTAreal Flood AdvisoryBMXDallas, Marengo, Perry3 hr
Apr 27, 10:18 PM CDTSevere Thunderstorm WarningBMXLee27 min
Apr 27, 10:31 PM CDTTornado WarningBMXLee12 min
Apr 27, 10:39 PM CDTSevere Thunderstorm WarningBMXChambers, Clay, Coosa, Elmore, Randolph, Tallapoosa49 min
Apr 27, 11:15 PM CDTSevere Thunderstorm WarningBMXDallas, Lowndes45 min
Apr 27, 11:31 PM CDTSevere Thunderstorm WarningBMXAutauga, Elmore, Lowndes, Montgomery44 min
Apr 28, 12:01 AM CDTSevere Thunderstorm WarningBMXAutauga, Bullock, Elmore, Lee, Lowndes, Macon and 3 more49 min

Nearby

Tornado Warnings in Alabama, 2011Every tornado warning in 2011Tornadoes 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; radar from the NEXRAD Level II archive.