Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 340, NWS Birmingham, AL

June 26, 20119 counties in Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 26, 2011, 4:41 PM CDT for 9 counties in Alabama. It was in force for 49 min. 3 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: Jun 26, 2011, 4:41 PM CDT (21:41 UTC)
Expired: Jun 26, 2011, 5:30 PM CDT
In force: 49 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Bibb County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Randolph County, AL, Shelby County, AL, Talladega County, AL, Tallapoosa County, AL

The radar

The Birmingham radar (KBMX), 47 km from the middle of the area, began a volume at 21:42 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

Time	Report	Where	Remark
Jun 26, 4:49 PM CDT	HAIL 0.5	1 Nw Talladega Springs, AL	PEA TO DIME SIZE.
Jun 26, 4:51 PM CDT	TSTM WND DMG	4 Wsw Columbiana, AL	TREES DOWN AT THE INTERSECTION OF HIGHWAY 25 AND COUNTY ROAD 305.
Jun 26, 4:57 PM CDT	TSTM WND DMG	3 Nnw Chelsea, AL	TREES DOWN AT THE INTERSECTION OF NARROWS PARKWAY AND OLD HIGHWAY 280.

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.

Issued	Product	Office	Lasted
Jun 26, 12:05 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.7 hours before the alert went out and 48 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2353 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 872 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: -91 m²/s²
0-3 km storm-relative helicity: -54 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.

674 
WUUS54 KBMX 262141
SVRBMX
ALC007-021-027-029-037-111-117-121-123-262230-
/O.NEW.KBMX.SV.W.0340.110626T2141Z-110626T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
441 PM CDT SUN JUN 26 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BIBB COUNTY IN ALABAMA...
  NORTHERN CHILTON COUNTY IN ALABAMA...
  CLAY COUNTY IN EAST CENTRAL ALABAMA...
  CLEBURNE COUNTY IN EAST CENTRAL ALABAMA...
  NORTHERN COOSA COUNTY IN EAST CENTRAL ALABAMA...
  RANDOLPH COUNTY IN EAST CENTRAL ALABAMA...
  SHELBY COUNTY IN ALABAMA...
  TALLADEGA COUNTY IN EAST CENTRAL ALABAMA...
  NORTHERN TALLAPOOSA COUNTY IN EAST CENTRAL ALABAMA...

* UNTIL 530 PM CDT

* AT 437 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED   A LINE 
OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS   IN 
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE   
EXTENDING FROM MARS HILLS TO TALLADEGA TO 6 MILES EAST OF 
TANNEHILL   IRONWORKS STATE PARK...AND MOVING SOUTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  HEFLIN...ALABASTER...CHILDERSBURG...WILSONVILLE...COLUMBIANA...
  MONTEVALLO...CENTREVILLE AND SYLACAUGA.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 212 THROUGH 247...
INTERSTATE 20 EXIT NUMBERS 179 THROUGH 210...

WINDS OF 60 TO 70 MPH WILL BREAK LARGE TREE LIMBS AND CAUSE SOME
DAMAGE...ESPECIALLY TO SMALLER STRUCTURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS.

THESE STORMS HAVE A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE 
ACROSS THE ENTIRE LINE OF STORMS. THIS IS AN EXTREMELY DANGEROUS 
SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY 
FROM WINDOWS.

&&

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

LAT...LON 3311 8546 3311 8559 3298 8559 3283 8683
      3288 8741 3300 8742 3301 8732 3307 8731
      3325 8707 3325 8699 3339 8677 3344 8638
      3339 8638 3345 8631 3359 8595 3356 8575
      3365 8564 3377 8564 3391 8538 3331 8527
TIME...MOT...LOC 2140Z 331DEG 28KT 3381 8536 3339 8609
          3326 8697

$$

27

2 follow-up statements

880 
WWUS54 KBMX 262154
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
454 PM CDT SUN JUN 26 2011

ALC007-021-027-029-037-111-117-121-123-262230-
/O.CON.KBMX.SV.W.0340.000000T0000Z-110626T2230Z/
BIBB AL-CHILTON AL-CLAY AL-CLEBURNE AL-COOSA AL-RANDOLPH AL-SHELBY 
AL-TALLADEGA AL-TALLAPOOSA AL-
454 PM CDT SUN JUN 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
TALLAPOOSA...TALLADEGA...SHELBY...RANDOLPH...NORTHERN COOSA...
CLEBURNE...CLAY...NORTHERN CHILTON AND BIBB COUNTIES UNTIL 530 PM
CDT...

AT 451 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN 
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING 
FROM TALLAPOOSA TO 5 MILES SOUTH OF WALDO TO MAYLENE...MOVING 
SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  COLUMBIANA...MONTEVALLO...CENTREVILLE...SYLACAUGA...CALERA...
  BRENT...ASHLAND...LINEVILLE...TALLADEGA SPRINGS AND STEWARTVILLE.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 212 THROUGH 247...
INTERSTATE 20 EXIT NUMBERS 199 THROUGH 210...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE ACROSS 
THE ENTIRE LINE OF THUNDERSTORMS. THIS IS AN EXTREMELY DANGEROUS 
SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY 
FROM WINDOWS.

&&

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

LAT...LON 3311 8546 3311 8559 3298 8559 3283 8683
      3288 8741 3300 8742 3301 8732 3307 8731
      3325 8707 3325 8699 3339 8677 3344 8638
      3339 8638 3345 8631 3359 8595 3356 8575
      3365 8564 3377 8564 3391 8538 3331 8527
TIME...MOT...LOC 2154Z 331DEG 28KT 3371 8530 3329 8603
          3317 8691

$$

27

012 
WWUS54 KBMX 262211
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
511 PM CDT SUN JUN 26 2011

ALC007-021-027-029-037-111-117-121-123-262230-
/O.CON.KBMX.SV.W.0340.000000T0000Z-110626T2230Z/
BIBB AL-CHILTON AL-CLAY AL-CLEBURNE AL-COOSA AL-RANDOLPH AL-SHELBY 
AL-TALLADEGA AL-TALLAPOOSA AL-
511 PM CDT SUN JUN 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
TALLAPOOSA...TALLADEGA...SHELBY...RANDOLPH...NORTHERN COOSA...
SOUTHERN CLEBURNE...CLAY...NORTHERN CHILTON AND BIBB COUNTIES UNTIL
530 PM CDT...

AT 507 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN 
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING 
FROM 6 MILES NORTH OF BOWDON TO 9 MILES SOUTHWEST OF ASHLAND TO 
WILTON...MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  STEWARTVILLE...GOODWATER...WEDOWEE...JEMISON...WEOGUFKA...
  KELLYTON...MORRISON CROSS ROADS...BLUE SPRINGS...STRICKLAND
  CROSSROADS AND PARKDALE.

THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 212 THROUGH 247...
INTERSTATE 20 EXIT NUMBERS 199 THROUGH 210...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE ACROSS 
THE ENTIRE LINE OF STORMS. THIS IS AN EXTREMELY DANGEROUS SITUATION. 
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM 
WINDOWS.

&&

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

LAT...LON 3311 8546 3311 8559 3298 8559 3283 8683
      3288 8741 3300 8742 3301 8732 3307 8731
      3325 8707 3325 8699 3339 8677 3344 8638
      3339 8638 3345 8631 3359 8595 3356 8575
      3365 8564 3377 8536 3331 8527
TIME...MOT...LOC 2211Z 331DEG 28KT 3359 8522 3317 8595
          3306 8683

$$

27

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 7:40 PM CDT	Special Weather Statement	BMX	Russell	50 min
Jun 26, 2:23 PM CDT	Special Weather Statement	BMX	Blount	37 min
Jun 26, 2:35 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion, Walker, Winston	40 min
Jun 26, 2:45 PM CDT	Special Weather Statement	BMX	Barbour	30 min
Jun 26, 2:53 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Etowah	52 min
Jun 26, 3:16 PM CDT	Special Weather Statement	BMX	Fayette, Lamar, Marion, Walker	59 min
Jun 26, 3:21 PM CDT	Severe Thunderstorm Warning	BMX	Blount	24 min
Jun 26, 3:30 PM CDT	Special Weather Statement	BMX	DeKalb	30 min
Jun 26, 3:45 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Cherokee, Etowah, St. Clair	45 min
Jun 26, 3:52 PM CDT	Special Weather Statement	BMX	Pike	23 min
Jun 26, 4:03 PM CDT	Special Weather Statement	BMX	Bullock	27 min
Jun 26, 4:03 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee, Cleburne, Etowah, Jefferson, St. Clair and 2 more	42 min
Jun 26, 4:10 PM CDT	Special Weather Statement	BMX	Fayette, Lamar, Pickens, Tuscaloosa	50 min
Jun 26, 4:11 PM CDT	Severe Thunderstorm Warning	BMX	Barbour, Bullock, Pike	24 min
Jun 26, 4:14 PM CDT	Special Weather Statement	BMX	Lee	46 min
Jun 26, 4:55 PM CDT	Special Weather Statement	BMX	Lee	50 min
Jun 26, 4:59 PM CDT	Severe Thunderstorm Warning	BMX	Chambers, Lee	31 min
Jun 26, 5:04 PM CDT	Special Weather Statement	BMX	Russell	41 min
Jun 26, 5:28 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Chambers, Chilton, Clay, Coosa, Elmore and 2 more	47 min
Jun 26, 6:13 PM CDT	Special Weather Statement	BMX	Bullock, Lee, Lowndes, Macon, Montgomery, Russell	47 min
Jun 26, 6:18 PM CDT	Severe Thunderstorm Warning	BMX	Lee	42 min
Jun 26, 6:28 PM CDT	Flash Flood Warning	BMX	Lee	3 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2011 Every severe thunderstorm warning 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.