Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 72, NWS Birmingham, AL

April 15, 2011Lowndes County, Montgomery County, Alabama

NWS Birmingham, AL issued this tornado warning at Apr 15, 2011, 5:55 PM CDT for Lowndes County, Montgomery County, Alabama. It was in force for 46 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 15, 2011, 5:55 PM CDT (22:55 UTC)
Expired
Apr 15, 2011, 6:41 PM CDT
In force
46 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon

Counties Lowndes County, AL, Montgomery County, AL

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 15, 11:21 AM CDTTornado WatchSPC9 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 10.9 hours before the alert went out and 130 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.

806 
WFUS54 KBMX 152255
TORBMX
ALC085-101-160000-
/O.NEW.KBMX.TO.W.0072.110415T2255Z-110416T0000Z/

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

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN LOWNDES COUNTY IN SOUTH CENTRAL ALABAMA...
  WESTERN MONTGOMERY COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 700 PM CDT

* AT 550 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR
  BUTLER SPRINGS...OR 22 MILES SOUTHWEST OF FORT DEPOSIT. DOPPLER
  RADAR SHOWED THIS TORNADO MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FORT DEPOSIT...HAYNEVILLE...MEADVILLE...MACEDONIA...LOWNDES COUNTY
  AIRPORT...BEECHWOOD...LOGAN...DAVENPORT...NAFTEL AND STRATA.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 142 THROUGH 168...

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 3200 8687 3241 8639 3201 8606 3196 8619
      3197 8630 3205 8630 3205 8639 3197 8641
      3196 8686
TIME...MOT...LOC 2255Z 237DEG 34KT 3186 8685

$$

17/KLAWS
3 follow-up statements
849 
WWUS54 KBMX 152306
SVSBMX

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

ALC085-101-160000-
/O.CON.KBMX.TO.W.0072.000000T0000Z-110416T0000Z/
LOWNDES AL-MONTGOMERY AL-
606 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR WESTERN MONTGOMERY AND
SOUTHEASTERN LOWNDES COUNTIES UNTIL 700 PM CDT...

AT 604 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO WITH 
LOTS OF DAMAGE!  THIS TORNADO WAS LOCATED 7 MILES SOUTH OF 
MACEDONIA...OR 12 MILES SOUTHWEST OF FORT DEPOSIT...MOVING NORTHEAST 
AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  FORT DEPOSIT...HAYNEVILLE...MEADVILLE...LOWNDES COUNTY AIRPORT...
  BEECHWOOD...LOGAN...DAVENPORT...NAFTEL...STRATA AND PINTLALA.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 142 THROUGH 168...

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

LAT...LON 3200 8687 3241 8639 3201 8606 3196 8619
      3197 8630 3205 8630 3205 8639 3197 8641
      3196 8686
TIME...MOT...LOC 2306Z 237DEG 34KT 3191 8674

$$

17/KLAWS
297 
WWUS54 KBMX 152326
SVSBMX

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

ALC085-101-160000-
/O.CON.KBMX.TO.W.0072.000000T0000Z-110416T0000Z/
LOWNDES AL-MONTGOMERY AL-
626 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR WESTERN MONTGOMERY AND
SOUTHEASTERN LOWNDES COUNTIES UNTIL 700 PM CDT...

AT 622 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR FORT DEPOSIT...MOVING NORTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  HAYNEVILLE...MEADVILLE...LOGAN...DAVENPORT...NAFTEL...STRATA...
  PINTLALA...CANTELOUS...GRADY AND RAMER.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 142 THROUGH 168...

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

LAT...LON 3200 8687 3241 8639 3201 8606 3196 8619
      3197 8630 3205 8630 3205 8639 3197 8641
      3196 8686
TIME...MOT...LOC 2326Z 238DEG 37KT 3202 8657

$$

17/KLAWS
995 
WWUS54 KBMX 152341
SVSBMX

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

ALC085-101-152351-
/O.CAN.KBMX.TO.W.0072.000000T0000Z-110416T0000Z/
LOWNDES AL-MONTGOMERY AL-
641 PM CDT FRI APR 15 2011

...THE TORNADO WARNING FOR WESTERN MONTGOMERY 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 3200 8687 3241 8639 3201 8606 3196 8619
      3197 8630 3205 8630 3205 8639 3197 8641
      3196 8686
TIME...MOT...LOC 2341Z 238DEG 37KT 3210 8641

$$

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, 2:56 PM CDTTornado WarningBMXGreene, Hale, Marengo, Perry, Sumter49 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, 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; the sounding from the Mesonet's radiosonde archive.