Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 71, NWS Birmingham, AL

April 15, 20114 counties in Alabama

NWS Birmingham, AL issued this tornado warning at Apr 15, 2011, 5:30 PM CDT for 4 counties in Alabama. It was in force for 60 min. 4 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, 5:30 PM CDT (22:30 UTC)
Expired
Apr 15, 2011, 6:30 PM CDT
In force
60 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon

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

The radar

The Birmingham radar (KBMX), 121 km from the middle of the area, began a volume at 22:31 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.

What was reported inside it

TimeReportWhereRemark
Apr 15, 5:36 PM CDTTORNADO 24 Ese Linden, ALAN EF-2 TORNADO TOUCHDOWN NEAR DAYTON. THE MOST CONCENTRATED DAMAGE OCCURED TO SEVERAL HOMES THAT HAD SIGNIFICANT ROOF DAMAGE. THERE WERE SEVERAL HUNDRED HARD AND SOFTWOOD TREES SNAPPED AND UPROOTED. THE TORNADO DAMAGE PATH WAS 10.9 MILES LONG AND WAS 600 YARD
Apr 15, 5:40 PM CDTTORNADO 13 Nw Linden, ALAN EF-1 TORNADO TOUCHED DOWN FOR A SECOND TIME NEAR PINHOOK. THE TORNADO TOUCHED DOWN NEAR STATE HIGHWAY 28...RIGHT AT THE CHICKASAW BOGUE...OR 2 MILES NORTHWEST OF LINDEN. THE TORNADO DID SIGNIFICANT TREE DAMAGE...BY EITHER UPROOTING OR SNAPPING LARGE HARDWOO
Apr 15, 5:53 PM CDTTORNADOLinden, ALTREES DOWN.
Apr 15, 6:00 PM CDTTORNADO3 S Uniontown, ALDAMAGE WAS CONSISTENT WITH AN EF-0 TORNADO. WINDS WERE AROUND 95 MPH. THE TORNADO TOUCHED DOWN JUST NORTH OF COOPER ROAD OFF HIGHWAY 65 TRAVELING EAST-NORTHEAST TO JUST SOUTH OF HIGHWAY 80 OFF OF TAYLOE ROAD. THIS TOUCHDOWN UPROOTED AND SNAPPED NUMEROUS TREES

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, 10.5 hours before the alert went out and 121 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.

991 
WFUS54 KBMX 152230
TORBMX
ALC065-091-105-119-152330-
/O.NEW.KBMX.TO.W.0071.110415T2230Z-110415T2330Z/

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

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN HALE COUNTY IN WEST CENTRAL ALABAMA...
  NORTHERN MARENGO COUNTY IN SOUTHWEST ALABAMA...
  WESTERN PERRY COUNTY IN CENTRAL ALABAMA...
  SOUTHEASTERN SUMTER COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 630 PM CDT

* AT 527 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED 5 MILES NORTHWEST OF MYRTLEWOOD...OR 12 MILES WEST OF
  LINDEN...AND MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LINDEN...DEMOPOLIS...UNIONTOWN...GREENSBORO...JEFFERSON...PIN
  HOOK...CHICKASAW STATE PARK...ARCOLA...DAYTON AND FAUNSDALE.

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 3256 8787 3253 8786 3254 8781 3259 8778
      3257 8776 3259 8774 3262 8776 3283 8742
      3248 8734 3248 8742 3234 8742 3224 8801
      3228 8803 3231 8800 3231 8807 3241 8811
TIME...MOT...LOC 2230Z 244DEG 35KT 3232 8797

$$

17/KLAWS
2 follow-up statements
567 
WWUS54 KBMX 152240
SVSBMX

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

ALC065-091-105-119-152330-
/O.CON.KBMX.TO.W.0071.000000T0000Z-110415T2330Z/
MARENGO AL-PERRY AL-SUMTER AL-HALE AL-
540 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN HALE...
SOUTHEASTERN SUMTER...WESTERN PERRY AND NORTHERN MARENGO COUNTIES
UNTIL 630 PM CDT...

AT 536 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING TWO SEPARATE 
TORNODOES.  THESE DANGEROUS STORMS WERE LOCATED ALONG A LINE 
EXTENDING FROM PIN HOOK TO LINDEN...MOVING NORTHEAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  DEMOPOLIS...UNIONTOWN...GREENSBORO...JEFFERSON...PIN HOOK...
  DAYTON...CHICKASAW STATE PARK...ARCOLA...FAUNSDALE AND GREENSBORO
  MUNICIPAL AIRPORT.

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

LAT...LON 3256 8787 3253 8786 3254 8781 3259 8778
      3257 8776 3259 8774 3262 8776 3283 8742
      3248 8734 3248 8742 3234 8742 3224 8801
      3228 8803 3231 8800 3231 8807 3241 8811
TIME...MOT...LOC 2239Z 246DEG 32KT 3233 8790 3232 8770

$$

17/KLAWS
001 
WWUS54 KBMX 152300
SVSBMX

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

ALC119-152308-
/O.CAN.KBMX.TO.W.0071.000000T0000Z-110415T2330Z/
SUMTER AL-
600 PM CDT FRI APR 15 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 3283 8742 3248 8734 3248 8742 3234 8742
      3228 8779 3246 8786
TIME...MOT...LOC 2258Z 237DEG 18KT 3236 8771

$$

ALC065-091-105-152330-
/O.CON.KBMX.TO.W.0071.000000T0000Z-110415T2330Z/
MARENGO AL-PERRY AL-HALE AL-
600 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL HALE...
WESTERN PERRY AND NORTHEASTERN MARENGO COUNTIES UNTIL 630 PM CDT...

AT 554 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED TWO 
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING TORNADOES. THESE DANGEROUS 
STORMS WAS LOCATED NEAR CHICKASAW STATE PARK...OR 5 MILES NORTHEAST 
OF LINDEN...AND THE OTHER JUST SOUTHWEST OF UNIONTOWN...MOVING 
NORTHEAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  UNIONTOWN...DAYTON...FAUNSDALE...NEWBERN...VALDEN...GALLION...
  LANEVILLE...CEDARVILLE...FOLSOM AND MORGAN SPRINGS.

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 3283 8742 3248 8734 3248 8742 3234 8742
      3228 8779 3246 8786
TIME...MOT...LOC 2258Z 237DEG 18KT 3236 8771

$$

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, 3:39 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, 5:38 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.