Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 60, NWS Birmingham, AL

April 15, 20114 counties in Alabama

NWS Birmingham, AL issued this tornado warning at Apr 15, 2011, 3:39 PM CDT for 4 counties in Alabama. It was in force for 66 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, 3:39 PM CDT (20:39 UTC)
Expired
Apr 15, 2011, 4:45 PM CDT
In force
66 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon

Counties Bibb County, AL, Hale County, AL, Perry County, AL, Tuscaloosa County, AL

The radar

The Birmingham radar (KBMX), 29 km from the middle of the area, began a volume at 20:42 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, 3:48 PM CDTTORNADO2 Sw Wateroak, ALTORNADO CROSSED RTE 69 AND CR 53...TREES DOWN OR SNAPPED...POWER LINES DOW.
Apr 15, 3:59 PM CDTTORNADO 11 E Mertz, ALAN EF-1 TORNADO TOUCHED DOWN ALONG STATE HIGHWAY 25...3 MILES WEST OF COUNTY ROAD 16...WHERE THOUSANDS OF TREES WERE SNAPPED AND UPROOTED ALONG THE PATH. THERE WAS SOME STRUCTURE DAMAGE AS THE TORNADO CROSSED HIGHWAY 5 SOUTH OF WEST BLOCTON. THERE WAS MODERATE
Apr 15, 4:14 PM CDTTORNADOW Eoline, ALTREES DOWN ON HWY 25. MULTIPLE TREES DOWN SOUTH OF LITTLE HOPE RD COMPLETELY BLOCKED. TREES DOWN ON HWY 82. TREE ACROSS ROAD ON HWY 5. FRIENDSHIP ROAD BLOCKED. ABOUT 10 TREES DOWN SOUTH OF 300. TREE DOWN ON EOLINE ROAD. 5 TREES DOWN ROAD BLOCKED ON RAGLAND ROA
Apr 15, 4:23 PM CDTTORNADOEoline, ALTREES AND POWERLINES DOWN ON HWY 82.
Apr 15, 4:24 PM CDTTORNADOEoline, ALLINES AND TREES SNAPPED AND SHREDDED. HWY 82 BLOCKED.
Apr 15, 4:38 PM CDTTORNADO3 S West Blocton, ALNUMEROUS TREES DOWN ON HWY 5.

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, 11:21 AM CDTTornado WatchSPC9 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 8.7 hours before the alert went out and 28 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.

234 
WFUS54 KBMX 152039
TORBMX
ALC007-065-105-125-152145-
/O.NEW.KBMX.TO.W.0060.110415T2039Z-110415T2145Z/

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

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  BIBB COUNTY IN CENTRAL ALABAMA...
  NORTHEASTERN HALE COUNTY IN WEST CENTRAL ALABAMA...
  NORTH CENTRAL PERRY COUNTY IN CENTRAL ALABAMA...
  SOUTHEASTERN TUSCALOOSA COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 445 PM CDT

* AT 338 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED 6 MILES NORTH OF GREENSBORO...AND MOVING NORTHEAST AT
  45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BRENT...CENTREVILLE...MERTZ...LOW GAP...HARRISBURG...EOLINE...WEST
  CENTREVILLE...VANCE...WEST BLOCTON AND WOODSTOCK JUNCTION.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBERS 86 THROUGH 100...

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 3332 8716 3330 8708 3328 8705 3325 8706
      3323 8701 3317 8702 3316 8697 3311 8697
      3311 8695 3307 8693 3305 8689 3292 8689
      3274 8746 3294 8759
TIME...MOT...LOC 2039Z 231DEG 39KT 3280 8758

$$

17/KLAWS
3 follow-up statements
978 
WWUS54 KBMX 152048
SVSBMX

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

ALC007-065-105-125-152145-
/O.CON.KBMX.TO.W.0060.000000T0000Z-110415T2145Z/
PERRY AL-HALE AL-BIBB AL-TUSCALOOSA AL-
348 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN TUSCALOOSA...
BIBB...NORTHEASTERN HALE AND NORTH CENTRAL PERRY COUNTIES UNTIL 445
PM CDT...

AT 347 PM CDT...EMERGENCY MANAGEMENT REPORTED A TORNADO!  THIS 
TORNADO WAS LOCATED 8 MILES SOUTHWEST OF MERTZ...OR 12 MILES 
NORTHEAST OF GREENSBORO...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  BRENT...CENTREVILLE...MERTZ...LOW GAP...HARRISBURG...EOLINE...WEST
  CENTREVILLE...COALING...VANCE AND WEST BLOCTON.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBERS 86 THROUGH 100...

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

LAT...LON 3332 8716 3330 8708 3328 8705 3325 8706
      3323 8701 3317 8702 3316 8697 3311 8697
      3311 8695 3307 8693 3305 8689 3292 8689
      3274 8746 3294 8759
TIME...MOT...LOC 2048Z 231DEG 39KT 3286 8748

$$

17/KLAWS
342 
WWUS54 KBMX 152111
SVSBMX

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

ALC065-105-125-152120-
/O.CAN.KBMX.TO.W.0060.000000T0000Z-110415T2145Z/
PERRY AL-HALE AL-TUSCALOOSA AL-
411 PM CDT FRI APR 15 2011

...THE TORNADO WARNING FOR SOUTHEASTERN TUSCALOOSA...NORTHEASTERN
HALE AND NORTH CENTRAL PERRY COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT THE WARNED AREA. 
HOWEVER...A TORNADO WARNING REMAINS IN EFFECT FOR A DIFFERENT STORM 
IN EASTERN TUSCALOOSA COUNTY.

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

LAT...LON 3301 8736 3301 8731 3307 8731 3314 8725
      3314 8719 3320 8718 3324 8715 3323 8710
      3325 8706 3323 8702 3317 8702 3316 8697
      3311 8697 3305 8689 3297 8689 3288 8732
      3298 8739
TIME...MOT...LOC 2110Z 231DEG 39KT 3298 8728

$$

ALC007-152145-
/O.CON.KBMX.TO.W.0060.000000T0000Z-110415T2145Z/
BIBB AL-
411 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR BIBB COUNTY UNTIL 445 PM
CDT...

AT 405 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CONFIRMED TORNADO.  THIS TORNADO WAS LOCATED NEAR MERTZ...OR 9 MILES
WEST OF BRENT...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  BRENT...CENTREVILLE...EOLINE...WEST CENTREVILLE...WEST BLOCTON...
  ASHBY...BRIERFIELD IRONWORKS PARK...HARMON...BIBB COUNTY AIRPORT
  AND SIX MILE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

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

LAT...LON 3301 8736 3301 8731 3307 8731 3314 8725
      3314 8719 3320 8718 3324 8715 3323 8710
      3325 8706 3323 8702 3317 8702 3316 8697
      3311 8697 3305 8689 3297 8689 3288 8732
      3298 8739
TIME...MOT...LOC 2110Z 231DEG 39KT 3298 8728

$$

03/08
347 
WWUS54 KBMX 152124
SVSBMX

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

ALC007-152145-
/O.CON.KBMX.TO.W.0060.000000T0000Z-110415T2145Z/
BIBB AL-
424 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN BIBB COUNTY UNTIL
445 PM CDT...

AT 419 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR EOLINE...OR 6 MILES NORTHWEST OF
CENTREVILLE...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  WEST BLOCTON...GREEN POND...HEBRON AND MARVEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

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

LAT...LON 3314 8719 3320 8718 3324 8715 3323 8710
      3325 8706 3323 8702 3317 8702 3316 8697
      3311 8697 3307 8693 3305 8689 3296 8719
      3305 8727
TIME...MOT...LOC 2124Z 230DEG 38KT 3307 8715

$$

03/08

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, 3:44 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.