Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 55, NWS Birmingham, AL

April 15, 20115 counties in Alabama

NWS Birmingham, AL issued this tornado warning at Apr 15, 2011, 2:56 PM CDT for 5 counties in Alabama. It was in force for 49 min. 6 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 15, 2011, 2:56 PM CDT (19:56 UTC)
Expired
Apr 15, 2011, 3:45 PM CDT
In force
49 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon

Counties Greene County, AL, Hale County, AL, Marengo County, AL, Perry County, AL, Sumter County, AL

The radar

The Birmingham radar (KBMX), 92 km from the middle of the area, began a volume at 19:56 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.

What was reported inside it

TimeReportWhereRemark
Apr 15, 3:31 PM CDTTORNADO 22 Nnw Greensboro, ALAN EF-2 TORNADO TOUCHED DOWN NEAR STATE HIGHWAY 14 AND LIFTED NEAR STATE HIGHWAY 69. THERE WERE NO KNOWN INJURIES...BUT ONE PERSON WAS TRAPPED IN AN OVERTURNED MOBILE HOME FOR SEVERAL HOURS. THERE WAS SIGNIFICANT DAMAGE TO WINDOWS AND THE ROOF OF A CHURCH AND
Apr 15, 3:42 PM CDTTORNADO8 N Greensboro, ALROOFS OFF OF HOUSES
Apr 15, 3:45 PM CDTTORNADO9 N Greensboro, ALPUBLIC REPORTS TORNADO ON THE GROUND CROSSING HIGHWAY 25 NORTH OF GREENSBORO. AT LEAST 50 HOMES DAMAGED AND 10 DESTROYED PER EMA.
Apr 15, 3:45 PM CDTTORNADO9 N Greensboro, ALPUBLIC REPORTS TORNADO ON THE GROUND CROSSING HIGHWAY 25 NORTH OF GREENSBORO.
Apr 15, 3:48 PM CDTTORNADO2 Sw Wateroak, ALTORNADO CROSSED RTE 69 AND CR 53...TREES DOWN OR SNAPPED...POWER LINES DOW.
Apr 15, 3:48 PM CDTTORNADO8 Nne Greensboro, ALTORNADO CROSSED RTE 69 AND CR 53...TREES DOWN OR SNAPPED...POWER LINES DOW.

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 15, 7:32 AM CDTTornado WatchSPC7 hr
Apr 15, 11:21 AM CDTTornado WatchSPC9 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.9 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-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2011-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2011-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 282 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1553 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
282 m²/s²
0-3 km storm-relative helicity
365 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

357 
WFUS54 KBMX 151956
TORBMX
ALC063-065-091-105-119-152045-
/O.NEW.KBMX.TO.W.0055.110415T1956Z-110415T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
256 PM CDT FRI APR 15 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN GREENE COUNTY IN WEST CENTRAL ALABAMA...
  HALE COUNTY IN WEST CENTRAL ALABAMA...
  NORTH CENTRAL MARENGO COUNTY IN SOUTHWEST ALABAMA...
  NORTHWESTERN PERRY COUNTY IN CENTRAL ALABAMA...
  EAST CENTRAL SUMTER COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 345 PM CDT

* AT 252 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED NEAR DUG HILL...OR 10 MILES WEST OF DEMOPOLIS...AND
  MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  DEMOPOLIS...GREENSBORO...FORKLAND...ARCOLA...DUFFYS BEND...
  GREENSBORO MUNICIPAL AIRPORT...SAWYERVILLE...NEWBERN...MCDOWELL AND
  BELMONT.

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 3262 8800 3297 8742 3296 8742 3288 8742
      3287 8739 3257 8732 3245 8790
TIME...MOT...LOC 1956Z 229DEG 39KT 3253 8796

$$

17/KLAWS
3 follow-up statements
165 
WWUS54 KBMX 152013 RRA
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
313 PM CDT FRI APR 15 2011

ALC091-119-152023-
/O.CAN.KBMX.TO.W.0055.000000T0000Z-110415T2045Z/
MARENGO AL-SUMTER AL-
313 PM CDT FRI APR 15 2011

...THE TORNADO WARNING FOR EAST CENTRAL SUMTER AND NORTH CENTRAL
MARENGO 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 3297 8742 3288 8742 3287 8739 3257 8732
      3256 8787 3260 8789 3261 8787 3259 8786
      3259 8785 3260 8784 3262 8785 3262 8791
      3265 8793
TIME...MOT...LOC 2013Z 230DEG 42KT 3265 8784

$$

ALC063-065-105-152045-
/O.CON.KBMX.TO.W.0055.000000T0000Z-110415T2045Z/
PERRY AL-HALE AL-GREENE AL-
313 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN GREENE...
CENTRAL HALE AND NORTHWESTERN PERRY COUNTIES UNTIL 345 PM CDT...

AT 310 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR FORKLAND...OR 8 MILES NORTH OF DEMOPOLIS...
MOVING NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  GREENSBORO...DUFFYS BEND...GREENSBORO MUNICIPAL AIRPORT...
  SAWYERVILLE...NEWBERN...CEDARVILLE...FOLSOM...MORGAN SPRINGS AND
  WATEROAK.

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

LAT...LON 3297 8742 3288 8742 3287 8739 3257 8732
      3256 8787 3260 8789 3261 8787 3259 8786
      3259 8785 3260 8784 3262 8785 3262 8791
      3265 8793
TIME...MOT...LOC 2013Z 230DEG 42KT 3265 8784

$$

17/KLAWS
062 
WWUS54 KBMX 152023 RRA
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
323 PM CDT FRI APR 15 2011

ALC063-065-105-152045-
/O.CON.KBMX.TO.W.0055.000000T0000Z-110415T2045Z/
PERRY AL-HALE AL-GREENE AL-
323 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN GREENE...
CENTRAL HALE AND NORTHWESTERN PERRY COUNTIES UNTIL 345 PM CDT...

AT 319 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR DUFFYS BEND...OR 11 MILES WEST OF
GREENSBORO...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  GREENSBORO...GREENSBORO MUNICIPAL AIRPORT...SAWYERVILLE...FOLSOM...
  WATEROAK AND MORGAN SPRINGS.

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

LAT...LON 3270 8784 3297 8742 3288 8742 3287 8739
      3270 8735 3257 8776 3261 8783 3264 8785
TIME...MOT...LOC 2024Z 230DEG 38KT 3271 8773

$$

17/KLAWS
479 
WWUS54 KBMX 152030
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
330 PM CDT FRI APR 15 2011

ALC063-152040-
/O.CAN.KBMX.TO.W.0055.000000T0000Z-110415T2045Z/
GREENE AL-
330 PM CDT FRI APR 15 2011

...THE TORNADO WARNING FOR SOUTHEASTERN GREENE 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 8777 3297 8742 3288 8742 3287 8739
      3270 8735 3265 8767 3267 8774 3270 8776
TIME...MOT...LOC 2030Z 230DEG 38KT 3274 8769

$$

ALC065-105-152045-
/O.CON.KBMX.TO.W.0055.000000T0000Z-110415T2045Z/
PERRY AL-HALE AL-
330 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL HALE AND
NORTHWESTERN PERRY COUNTIES UNTIL 345 PM CDT...

AT 328 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR SAWYERVILLE...OR 7 MILES WEST OF GREENSBORO...
MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  GREENSBORO...WATEROAK AND MORGAN SPRINGS.

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

LAT...LON 3275 8777 3297 8742 3288 8742 3287 8739
      3270 8735 3265 8767 3267 8774 3270 8776
TIME...MOT...LOC 2030Z 230DEG 38KT 3274 8769

$$

17/KLAWS

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 3:29 AM CDTWind AdvisoryBMXAutauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more22 hr
Apr 15, 8:49 AM CDTSpecial Weather StatementBMXMarion41 min
Apr 15, 8:55 AM CDTSpecial Weather StatementBMXLamar50 min
Apr 15, 9:49 AM CDTAreal Flood AdvisoryBMXLamar116 min
Apr 15, 9:53 AM CDTSpecial Weather StatementBMXFayette, Marion37 min
Apr 15, 10:11 AM CDTFlash Flood WarningBMXLamar6 hr
Apr 15, 10:37 AM CDTSpecial Weather StatementBMXPickens38 min
Apr 15, 10:51 AM CDTSpecial Weather StatementBMXSt. Clair39 min
Apr 15, 10:59 AM CDTSevere Thunderstorm WarningBMXBlount, Jefferson, St. Clair46 min
Apr 15, 11:12 AM CDTAreal Flood AdvisoryBMXFayette, Walker, Winston2 hr
Apr 15, 11:52 AM CDTTornado WarningBMXMarengo38 min
Apr 15, 12:15 PM CDTSevere Thunderstorm WarningBMXLamar, Pickens34 min
Apr 15, 12:24 PM CDTTornado WarningBMXMarengo51 min
Apr 15, 12:36 PM CDTSevere Thunderstorm WarningBMXBlount, Jefferson, St. Clair27 min
Apr 15, 12:59 PM CDTTornado WarningBMXDallas, Marengo, Perry46 min
Apr 15, 1:10 PM CDTFlash Flood WarningBMXFayette, Lamar, Marion, Walker, Winston3 hr
Apr 15, 1:22 PM CDTAreal Flood AdvisoryBMXBlount3 hr
Apr 15, 1:25 PM CDTTornado Warning EmergencyBMXGreene, Sumter65 min
Apr 15, 1:43 PM CDTTornado WarningBMXPerry28 min
Apr 15, 2:14 PM CDTRiver Flood WarningBMXGreene, Hale, Marengo, Pickens, Sumter4 days
Apr 15, 2:14 PM CDTRiver Flood WarningBMXGreene, Hale, Marengo, Sumter20 hr
Apr 15, 2:14 PM CDTRiver Flood WarningBMXGreene, Hale, Marengo, Sumter20 hr
Apr 15, 2:17 PM CDTRiver Flood WarningBMXGreene, Hale, Marengo4 days
Apr 15, 2:24 PM CDTTornado Warning EmergencyBMXGreene, Hale, Tuscaloosa51 min
Apr 15, 2:31 PM CDTTornado WarningBMXMarengo, Sumter29 min
Apr 15, 2:39 PM CDTFlash Flood WarningBMXGreene, Pickens, Sumter3 hr
Apr 15, 2:41 PM CDTTornado WarningBMXGreene, Tuscaloosa64 min
Apr 15, 2:49 PM CDTTornado WarningBMXGreene, Hale, Sumter41 min
Apr 15, 3:10 PM CDTTornado WarningBMXGreene, Hale, Tuscaloosa50 min
Apr 15, 3:25 PM CDTFlash Flood WarningBMXTuscaloosa3 hr
Apr 15, 3:27 PM CDTTornado WarningBMXGreene, Hale, Tuscaloosa48 min
Apr 15, 3:32 PM CDTTornado WarningBMXSumter58 min
Apr 15, 3:34 PM CDTTornado WarningBMXLowndes, Montgomery56 min
Apr 15, 3:39 PM CDTTornado WarningBMXBibb, Hale, Perry, Tuscaloosa66 min
Apr 15, 3:44 PM CDTTornado WarningBMXJefferson, Tuscaloosa37 min
Apr 15, 3:57 PM CDTAreal Flood WarningBMXLamar24 hr
Apr 15, 4:18 PM CDTTornado WarningBMXGreene, Hale, Sumter57 min
Apr 15, 4:21 PM CDTTornado WarningBMXLamar39 min
Apr 15, 4:28 PM CDTTornado WarningBMXBibb, Jefferson, Shelby62 min
Apr 15, 4:33 PM CDTSevere Thunderstorm WarningBMXBibb, Jefferson, Shelby, Tuscaloosa42 min
Apr 15, 4:41 PM CDTTornado WarningBMXMarengo, Sumter64 min
Apr 15, 4:42 PM CDTTornado WarningBMXBibb, Tuscaloosa33 min
Apr 15, 4:45 PM CDTTornado WarningBMXFayette, Lamar, Marion26 min
Apr 15, 5:08 PM CDTSevere Thunderstorm WarningBMXLamar52 min
Apr 15, 5:09 PM CDTFlash Flood WarningBMXJefferson, Shelby3 hr
Apr 15, 5:13 PM CDTTornado WarningBMXBibb, Hale, Perry35 min
Apr 15, 5:18 PM CDTTornado WarningBMXLamar30 min
Apr 15, 5:26 PM CDTTornado WarningBMXSt. Clair, Shelby, Talladega49 min
Apr 15, 5:30 PM CDTTornado WarningBMXHale, Marengo, Perry, Sumter60 min
Apr 15, 5:38 PM CDTSevere Thunderstorm WarningBMXLamar22 min
Apr 15, 5:45 PM CDTSevere Thunderstorm WarningBMXChambers, Lee, Macon45 min
Apr 15, 5:47 PM CDTSevere Thunderstorm WarningBMXFayette, Lamar, Marion45 min
Apr 15, 5:55 PM CDTTornado WarningBMXLowndes, Montgomery46 min
Apr 15, 6:08 PM CDTTornado WarningBMXCalhoun, Clay, Cleburne, Talladega52 min
Apr 15, 6:11 PM CDTTornado WarningBMXDallas, Perry64 min
Apr 15, 6:12 PM CDTTornado WarningBMXLee21 min
Apr 15, 6:15 PM CDTTornado WarningBMXDallas, Lowndes60 min
Apr 15, 6:17 PM CDTSevere Thunderstorm WarningBMXFayette, Walker43 min
Apr 15, 6:19 PM CDTTornado WarningBMXMarengo56 min
Apr 15, 6:43 PM CDTAreal Flood AdvisoryBMXTalladega3 hr
Apr 15, 6:53 PM CDTTornado WarningBMXCalhoun, Clay, Cleburne, Talladega31 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; radar from the NEXRAD Level II archive.