Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 337, NWS Birmingham, AL

June 26, 20114 counties in Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 26, 2011, 3:45 PM CDT for 4 counties in Alabama. It was in force for 45 min. 7 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, 3:45 PM CDT (20:45 UTC)
Expired: Jun 26, 2011, 4:30 PM CDT
In force: 45 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Blount County, AL, Cherokee County, AL, Etowah County, AL, St. Clair County, AL

The radar

The Northeast Alabama radar (KHTX), 96 km from the middle of the area, began a volume at 20:47 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, 3:48 PM CDT	TSTM WND DMG	Gallant, AL	TREE DOWN AT GALLANT ROAD AND COUNTRY HILL ROAD IN GALLANT.
Jun 26, 3:55 PM CDT	TSTM WND DMG	Cedar Bluff, AL	TREES AND POWER LINES DOWN AT COUNTY ROAD 75 AND 144 IN CEDAR BLUFF.
Jun 26, 3:55 PM CDT	TSTM WND GST 60	Cedar Bluff, AL
Jun 26, 3:59 PM CDT	TSTM WND DMG	Cedar Bluff, AL	TREE DOWN ACROSS COUNTY ROAD 131 IN CEDAR BLUFF.
Jun 26, 4:09 PM CDT	TSTM WND DMG	Sand Rock, AL	TREE DOWN ACROSS HIGHWAY 68 EAST AND HIGHWAY 176 IN SAND ROCK.
Jun 26, 4:16 PM CDT	TSTM WND DMG	Gaylesville, AL	TREE DOWN ACROSS HIGHWAY 35.
Jun 26, 4:20 PM CDT	TSTM WND DMG	2 Wsw Sand Rock, AL	TREE DOWN ACROSS HIGHWAY 68 EAST NEAR COUNTY ROAD 151.

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, 8.8 hours before the alert went out and 116 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.

837 
WUUS54 KBMX 262045
SVRBMX
ALC009-019-055-115-262130-
/O.NEW.KBMX.SV.W.0337.110626T2045Z-110626T2130Z/

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

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BLOUNT COUNTY IN ALABAMA...
  CHEROKEE COUNTY IN NORTHEAST ALABAMA...
  ETOWAH COUNTY IN NORTHEAST ALABAMA...
  NORTHERN ST. CLAIR COUNTY IN ALABAMA...

* UNTIL 430 PM CDT

* AT 342 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 6
  MILES SOUTHWEST OF CLOUDLAND TO WARRIOR...AND MOVING EAST AT 30
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  ONEONTA...CEDAR BLUFF...GADSDEN...CENTRE...SPRINGVILLE...RAINBOW
  CITY...HOKES BLUFF AND MARKTON.

THIS INCLUDES...
INTERSTATE 59 EXIT NUMBERS 154 THROUGH 188...

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.

&&

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

LAT...LON 3448 8550 3413 8543 3395 8588 3390 8594
      3392 8597 3388 8599 3366 8650 3376 8655
      3376 8665 3384 8676 3382 8696 3385 8696
      3414 8634 3411 8630 3419 8619 3421 8610
      3421 8585 3425 8584 3438 8563 3449 8558
TIME...MOT...LOC 2045Z 283DEG 24KT 3443 8556 3383 8683

$$

27

1 follow-up statement

149 
WWUS54 KBMX 262112
SVSBMX

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

ALC009-019-055-115-262130-
/O.CON.KBMX.SV.W.0337.000000T0000Z-110626T2130Z/
BLOUNT AL-CHEROKEE AL-ETOWAH AL-ST. CLAIR AL-
412 PM CDT SUN JUN 26 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN ST.
CLAIR...ETOWAH...CHEROKEE AND SOUTHERN BLOUNT COUNTIES UNTIL 430 PM
CDT...

AT 510 PM EDT/410 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 SOUTH OF SUMMERVILLE TO DALLAS...MOVING
EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  CEDAR BLUFF...GADSDEN...CENTRE...SPRINGVILLE...RAINBOW CITY...HOKES
  BLUFF...MARKTON...LEESBURG...CHEROKEE ROCK VILLAGE AND ATTALLA.

THIS INCLUDES...
INTERSTATE 59 EXIT NUMBERS 154 THROUGH 188...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS.

&&

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

LAT...LON 3448 8550 3413 8543 3395 8588 3390 8594
      3392 8597 3388 8599 3366 8650 3376 8655
      3376 8665 3384 8676 3382 8696 3385 8696
      3414 8634 3411 8630 3419 8619 3421 8610
      3421 8585 3425 8584 3438 8563 3449 8558
TIME...MOT...LOC 2112Z 283DEG 24KT 3439 8535 3379 8662

$$

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, 3:52 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, 4:41 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton, Clay, Cleburne, Coosa, Randolph and 3 more	49 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.