Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 259, NWS Birmingham, AL

June 8, 2011Bibb County, Perry County, Tuscaloosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 8, 2011, 5:36 PM CDT for Bibb County, Perry County, Tuscaloosa County, Alabama. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 8, 2011, 5:36 PM CDT (22:36 UTC)
Expired: Jun 8, 2011, 6:02 PM CDT
In force: 26 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

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

The radar

The Birmingham radar (KBMX), 63 km from the middle of the area, began a volume at 22:38 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.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 10.6 hours before the alert went out and 62 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: 1072 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 1033 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: 24 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.

631 
WUUS54 KBMX 082236
SVRBMX
ALC007-105-125-082315-
/O.NEW.KBMX.SV.W.0259.110608T2236Z-110608T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
536 PM CDT WED JUN 8 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN BIBB COUNTY IN ALABAMA...
  NORTH CENTRAL PERRY COUNTY IN ALABAMA...
  SOUTH CENTRAL TUSCALOOSA COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 615 PM CDT

* AT 533 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  HARRISBURG...OR 8 MILES SOUTHWEST OF BRENT...AND MOVING NORTHWEST
  AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MERTZ...EOLINE...LOW GAP...HARMON...PEARSON...HAGLER AND
  DUNCANVILLE.

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 3305 8755 3317 8725 3284 8714 3276 8734
      3288 8742 3300 8742 3301 8752
TIME...MOT...LOC 2235Z 146DEG 15KT 3288 8728

$$

56

3 follow-up statements

851 
WWUS54 KBMX 082255
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
555 PM CDT WED JUN 8 2011

ALC007-105-125-082315-
/O.CON.KBMX.SV.W.0259.000000T0000Z-110608T2315Z/
BIBB AL-PERRY AL-TUSCALOOSA AL-
555 PM CDT WED JUN 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
TUSCALOOSA...NORTH CENTRAL PERRY AND SOUTHWESTERN BIBB COUNTIES UNTIL
615 PM CDT...

AT 554 PM CDT...A ***YOU FORGOT TO SELECT A DEFAULT OPTION*** 
QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS
STORM WAS LOCATED NEAR MERTZ...OR 10 MILES WEST OF BRENT...MOVING
NORTHWEST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  LOW GAP...PEARSON AND HAGLER.

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

LAT...LON 3312 8730 3287 8722 3281 8737 3282 8739
      3288 8742 3300 8742 3301 8752 3305 8755
TIME...MOT...LOC 2254Z 146DEG 15KT 3295 8733

$$

56

685 
WWUS54 KBMX 082256
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
556 PM CDT WED JUN 8 2011

ALC007-105-125-082315-
/O.CON.KBMX.SV.W.0259.000000T0000Z-110608T2315Z/
BIBB AL-PERRY AL-TUSCALOOSA AL-
556 PM CDT WED JUN 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
TUSCALOOSA...NORTH CENTRAL PERRY AND SOUTHWESTERN BIBB COUNTIES UNTIL
615 PM CDT...

AT 554 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
MERTZ...OR 10 MILES WEST OF BRENT...MOVING NORTHWEST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  LOW GAP...HARMON...PEARSON AND HAGLER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

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

LAT...LON 3312 8730 3287 8722 3281 8737 3282 8739
      3288 8742 3300 8742 3301 8752 3305 8755
TIME...MOT...LOC 2256Z 146DEG 15KT 3295 8734

$$

56

415 
WWUS54 KBMX 082302
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
602 PM CDT WED JUN 8 2011

ALC007-105-125-082312-
/O.CAN.KBMX.SV.W.0259.000000T0000Z-110608T2315Z/
BIBB AL-PERRY AL-TUSCALOOSA AL-
602 PM CDT WED JUN 8 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL TUSCALOOSA...
NORTH CENTRAL PERRY AND SOUTHWESTERN BIBB COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER GUSTY WINDS UP TO 40 MPH ARE STILL POSSIBLE WITH THIS 
THUNDERSTORM.

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

LAT...LON 3312 8730 3287 8722 3281 8737 3282 8739
      3288 8742 3300 8742 3301 8752 3305 8755
TIME...MOT...LOC 2302Z 146DEG 15KT 3297 8736

$$

56

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 2:57 PM CDT	Special Weather Statement	BMX	Dallas	48 min
Jun 8, 4:04 PM CDT	Special Weather Statement	BMX	Autauga	41 min
Jun 8, 4:45 PM CDT	Severe Thunderstorm Warning	BMX	Marengo	30 min
Jun 8, 4:48 PM CDT	Special Weather Statement	BMX	Chilton	27 min
Jun 8, 5:11 PM CDT	Special Weather Statement	BMX	Marengo	49 min
Jun 8, 5:17 PM CDT	Special Weather Statement	BMX	Bibb	28 min
Jun 8, 5:41 PM CDT	Special Weather Statement	BMX	Shelby	49 min
Jun 8, 5:45 PM CDT	Severe Thunderstorm Warning	BMX	Sumter	45 min
Jun 8, 5:50 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Jefferson, Tuscaloosa, Walker	25 min
Jun 8, 6:00 PM CDT	Severe Thunderstorm Warning	BMX	Pickens	45 min
Jun 8, 6:16 PM CDT	Special Weather Statement	BMX	Walker	44 min
Jun 8, 6:28 PM CDT	Special Weather Statement	BMX	Tuscaloosa	47 min
Jun 8, 6:41 PM CDT	Special Weather Statement	BMX	Fayette	49 min
Jun 8, 6:44 PM CDT	Special Weather Statement	BMX	Pickens	31 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.