Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 133, NWS Birmingham, AL

April 27, 20114 counties in Alabama

NWS Birmingham, AL issued this tornado warning at Apr 27, 2011, 8:20 PM CDT for 4 counties in Alabama. It was in force for 55 min. 2 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
Apr 27, 2011, 8:20 PM CDT (01:20 UTC)
Expired
Apr 27, 2011, 9:15 PM CDT
In force
55 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Emergency
Tornado emergency

Counties Chambers County, AL, Elmore County, AL, Lee County, AL, Tallapoosa County, AL

What was reported inside it

TimeReportWhereRemark
Apr 27, 9:10 PM CDTTORNADODadeville, ALDADEVILLE TOOK A DIRECT HIT. MULTIPLE REPORTS OF EXTENSIVE DAMAGE.
Apr 27, 9:19 PM CDTTORNADO 15 Nne Lafayette, ALTHE TORNADO TOUCHED DOWN ALONG COUNTY ROAD 225, UPROOTING AND SNAPPING SEVERAL HARD AND SOFTWOOD TREES, AS WELL AS DOING SIGNIFICANT ROOF DAMAGE TO A SINGLE FAMILY RESIDENCE. THE TORNADO CONTINUED EAST-NORTHEAST CROSSING COUNTY ROADS 178 AND 176 WHERE NUMEROUS

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.

IssuedProductOfficeLasted
Apr 27, 5:52 PM CDTTornado Watch PDSSPC9 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.3 hours before the alert went out and 122 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, Peachtre/Fal Fld, GA at 00:00Z on 2011-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1215 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, Peachtre/Fal Fld, GA at 00:00Z on 2011-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 244 square meters per square second.19395878Sfc1 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
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.

918 
WFUS54 KBMX 280120
TORBMX
ALC017-051-081-123-280215-
/O.NEW.KBMX.TO.W.0133.110428T0120Z-110428T0215Z/

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

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  CHAMBERS COUNTY IN EAST CENTRAL ALABAMA...
  EASTERN ELMORE COUNTY IN EAST CENTRAL ALABAMA...
  NORTHERN LEE COUNTY IN EAST CENTRAL ALABAMA...
  SOUTHERN TALLAPOOSA COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 915 PM CDT

* AT 818 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED NEAR SANTUCK...OR 8 MILES SOUTH OF EQUALITY...AND
  MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  DADEVILLE...CAMP HILL...AUBURN...OPELIKA...LAFAYETTE...LANETT...
  VALLEY...ECLECTIC...KENT AND MARTIN LAKE AT KOWALIGA.

THIS INCLUDES...
INTERSTATE 85 EXIT NUMBERS 57 THROUGH 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 3265 8509 3257 8566 3260 8570 3259 8580
      3255 8581 3252 8603 3275 8610 3275 8601
      3279 8600 3308 8522 3283 8516 3279 8512
      3275 8513 3267 8508
TIME...MOT...LOC 0120Z 251DEG 41KT 3266 8609

$$

17
3 follow-up statements
202 
WWUS54 KBMX 280126
SVSBMX

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

ALC017-051-081-123-280215-
/O.CON.KBMX.TO.W.0133.000000T0000Z-110428T0215Z/
LEE AL-ELMORE AL-TALLAPOOSA AL-CHAMBERS AL-
826 PM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CHAMBERS...SOUTHERN
TALLAPOOSA...NORTHEASTERN ELMORE AND NORTHERN LEE COUNTIES UNTIL 915
PM CDT...

...TORNADO EMERGENCY CONTINUES FOR CENTRAL...LAKE MARTIN...DARE 
PARK..AND WIND CREEK STATE PARK...

AT 823 PM CDT...EMERGENCY MANAGEMENT REPORTED A TORNADO.  THIS
TORNADO WAS LOCATED NEAR ECLECTIC...OR 6 MILES SOUTHEAST OF
EQUALITY...MOVING EAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  DADEVILLE...CAMP HILL...OPELIKA...LAFAYETTE...LANETT...VALLEY...
  KENT...MARTIN LAKE AT KOWALIGA...TALLAPOOSA CITY AND MARTIN DAM.

THIS INCLUDES...
INTERSTATE 85 EXIT NUMBERS 57 THROUGH 79...

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

LAT...LON 3265 8509 3257 8566 3260 8570 3259 8580
      3255 8581 3252 8603 3275 8610 3275 8601
      3279 8600 3308 8522 3283 8516 3279 8512
      3275 8513 3267 8508
TIME...MOT...LOC 0126Z 248DEG 43KT 3269 8602

$$

17
612 
WWUS54 KBMX 280141
SVSBMX

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

ALC051-280151-
/O.CAN.KBMX.TO.W.0133.000000T0000Z-110428T0215Z/
ELMORE AL-
841 PM CDT WED APR 27 2011

...THE TORNADO WARNING FOR NORTHEASTERN 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 8513 3270 8549 3268 8579 3269 8590
      3271 8591 3275 8589 3276 8592 3282 8593
      3308 8522 3283 8516 3279 8512
TIME...MOT...LOC 0141Z 245DEG 43KT 3277 8583

$$

ALC017-081-123-280215-
/O.CON.KBMX.TO.W.0133.000000T0000Z-110428T0215Z/
LEE AL-TALLAPOOSA AL-CHAMBERS AL-
841 PM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CHAMBERS...SOUTHERN
TALLAPOOSA AND NORTHWESTERN LEE COUNTIES UNTIL 915 PM CDT...

...TORNADO EMERGENCY CONTINUES FOR LAKE MARTIN AND DADEVILLE...

AT 837 PM CDT...EMERGENCY MANAGEMENT REPORTED A TORNADO.  THIS
TORNADO WAS LOCATED NEAR STILL WATERS RESORT...OR 9 MILES SOUTHWEST
OF DADEVILLE...MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  DADEVILLE...CAMP HILL...LAFAYETTE...LANETT...VALLEY...WAVERLY...
  RIDGE GROVE...WEST CHAMBERS...STURKIE AND OAK BOWERY.

THIS INCLUDES...
INTERSTATE 85 EXIT NUMBERS 70 THROUGH 79...

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

LAT...LON 3275 8513 3270 8549 3268 8579 3269 8590
      3271 8591 3275 8589 3276 8592 3282 8593
      3308 8522 3283 8516 3279 8512
TIME...MOT...LOC 0141Z 245DEG 43KT 3277 8583

$$

17!
393 
WWUS54 KBMX 280152
SVSBMX

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

ALC081-280202-
/O.CAN.KBMX.TO.W.0133.000000T0000Z-110428T0215Z/
LEE AL-
852 PM CDT WED APR 27 2011

...THE TORNADO WARNING FOR NORTHWESTERN LEE 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 8513 3274 8541 3275 8542 3272 8571
      3273 8579 3281 8584 3286 8584 3308 8522
      3283 8516 3279 8512
TIME...MOT...LOC 0152Z 245DEG 43KT 3282 8568

$$

ALC017-123-280215-
/O.CON.KBMX.TO.W.0133.000000T0000Z-110428T0215Z/
TALLAPOOSA AL-CHAMBERS AL-
852 PM CDT WED APR 27 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CHAMBERS AND EAST CENTRAL
TALLAPOOSA COUNTIES UNTIL 915 PM CDT...

...TORNADO EMERGENCY CONTINUES FOR CAMP HILL...SLAUGHTERS...WEST 
CHAMBERS AND RIDGE GROVE...

AT 846 PM CDT...EMERGENCY MANAGEMENT REPORTED A TORNADO.  THIS
TORNADO WAS LOCATED NEAR DADEVILLE...MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  CAMP HILL...LAFAYETTE...LANETT...VALLEY...WAVERLY...RIDGE GROVE...
  WEST CHAMBERS...STURKIE...OAK BOWERY AND CHAMBERS COUNTY LAKE.

THIS INCLUDES...
INTERSTATE 85 EXIT NUMBERS 77 THROUGH 79...

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

LAT...LON 3275 8513 3274 8541 3275 8542 3272 8571
      3273 8579 3281 8584 3286 8584 3308 8522
      3283 8516 3279 8512
TIME...MOT...LOC 0152Z 245DEG 43KT 3282 8568

$$

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, 7:28 PM CDTTornado WarningBMXHale, Marengo, Sumter62 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, 8:21 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.