Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 11, NWS Birmingham, AL

February 28, 2011Chambers County, Alabama

NWS Birmingham, AL issued this tornado warning at Feb 28, 2011, 5:29 PM CST for Chambers County, Alabama. It was in force for 23 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
Feb 28, 2011, 5:29 PM CST (23:29 UTC)
Expired
Feb 28, 2011, 5:52 PM CST
In force
23 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon

County Chambers County, AL

What was reported inside it

TimeReportWhereRemark
Feb 28, 5:29 PM CSTTSTM WND DMG6 Sw Stroud, ALSEVERAL TREES WERE BLOWN DOWN ALONG CR160 NORTH OF LAFAYETTE. AT LEAST 6 HOMES SUFFERED ROOF DAMAGE AND SEVERAL AUTOS WERE DAMAGED BY FALLEN TREES. POSSIBLE TORNADO.
Feb 28, 5:29 PM CSTTORNADO 04 Ssw Stroud, ALSEVERAL TREES WERE BLOWN DOWN ALONG CR160 NORTH OF LAFAYETTE. AT LEAST 6 HOMES SUFFERED ROOF DAMAGE AND SEVERAL AUTOS WERE DAMAGED BY FALLEN TREES. POSSIBLE TORNADO. TORNADO PATH WAS 1.9 MILES LONG AND 30 YARDS WIDE.

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
Feb 28, 12:29 PM CSTTornado WatchSPC7 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.5 hours before the alert went out and 87 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 12:00Z on 2011-02-28Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2011-02-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 229 square meters per square second.1939587897117Sfc1 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
1162 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
229 m²/s²
0-3 km storm-relative helicity
350 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

369 
WFUS54 KBMX 282329
TORBMX
ALC017-010000-
/O.NEW.KBMX.TO.W.0011.110228T2329Z-110301T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
529 PM CST MON FEB 28 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL CHAMBERS COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 600 PM CST

* AT 529 PM CST...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
  WAS LOCATED NEAR WHITE PLAINS...OR NEAR STROUD...AND MOVING EAST AT
  45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  STROUD...WELCH...DENSON...POST OAK FORKS...FREDONIA...VEASEY CREEK
  PARK...AMITY PARK...LAKEVIEW...STROUD CREEK AND ROCKY POINT.

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 3289 8519 3291 8550 3309 8549 3309 8522
      3292 8518
TIME...MOT...LOC 2329Z 272DEG 38KT 3299 8536

$$

27
2 follow-up statements
348 
WWUS54 KBMX 282339
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
539 PM CST MON FEB 28 2011

ALC017-010000-
/O.CON.KBMX.TO.W.0011.000000T0000Z-110301T0000Z/
CHAMBERS AL-
539 PM CST MON FEB 28 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL CHAMBERS
COUNTY UNTIL 600 PM CST...

AT 539 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR FREDONIA...OR 6 MILES SOUTHEAST OF STROUD...
MOVING EAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  AMITY PARK...LAKEVIEW...ROCKY POINT AND SOUTHERN HARBOR.

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

LAT...LON 3289 8519 3290 8536 3309 8532 3309 8522
      3292 8518
TIME...MOT...LOC 2339Z 272DEG 38KT 3298 8523

$$

27
095 
WWUS54 KBMX 282352
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
552 PM CST MON FEB 28 2011

ALC017-010002-
/O.CAN.KBMX.TO.W.0011.000000T0000Z-110301T0000Z/
CHAMBERS AL-
552 PM CST MON FEB 28 2011

...THE TORNADO WARNING FOR EAST CENTRAL CHAMBERS COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 7 PM CST.

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

LAT...LON 3289 8519 3290 8536 3309 8532 3309 8522
      3292 8518
TIME...MOT...LOC 2352Z 272DEG 38KT 3297 8507

$$

27

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 28, 1:53 PM CSTSpecial Weather StatementBMXMarshall37 min
Feb 28, 2:11 PM CSTSevere Thunderstorm WarningBMXCherokee34 min
Feb 28, 2:19 PM CSTSpecial Weather StatementBMXJefferson, Tuscaloosa41 min
Feb 28, 2:21 PM CSTSevere Thunderstorm WarningBMXCherokee, Etowah24 min
Feb 28, 2:32 PM CSTSevere Thunderstorm WarningBMXJefferson, Tuscaloosa43 min
Feb 28, 2:44 PM CSTSevere Thunderstorm WarningBMXCherokee19 min
Feb 28, 2:58 PM CSTTornado WarningBMXBarbour, Bullock, Pike15 min
Feb 28, 2:59 PM CSTSevere Thunderstorm WarningBMXBibb, Shelby61 min
Feb 28, 3:09 PM CSTSevere Thunderstorm WarningBMXCalhoun, St. Clair, Talladega51 min
Feb 28, 3:15 PM CSTSpecial Weather StatementBMXCherokee15 min
Feb 28, 3:39 PM CSTTornado WarningBMXShelby, Talladega36 min
Feb 28, 3:53 PM CSTSevere Thunderstorm WarningBMXCleburne37 min
Feb 28, 4:00 PM CSTSevere Thunderstorm WarningBMXClay, Coosa, Randolph, Talladega, Tallapoosa45 min
Feb 28, 4:16 PM CSTSevere Thunderstorm WarningBMXAutauga, Chilton, Dallas44 min
Feb 28, 4:22 PM CSTSevere Thunderstorm WarningBMXAutauga, Dallas, Perry38 min
Feb 28, 4:43 PM CSTSevere Thunderstorm WarningBMXClay, Randolph17 min
Feb 28, 4:47 PM CSTSevere Thunderstorm WarningBMXAutauga, Dallas, Lowndes43 min
Feb 28, 5:11 PM CSTSpecial Weather StatementBMXChambers49 min
Feb 28, 5:15 PM CSTSevere Thunderstorm WarningBMXDallas, Lowndes, Montgomery45 min
Feb 28, 5:56 PM CSTSevere Thunderstorm WarningBMXBullock, Montgomery49 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.