Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 162, NWS Birmingham, AL

June 4, 2012Greene County, Pickens County, Tuscaloosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 4, 2012, 7:15 AM CDT for Greene County, Pickens County, Tuscaloosa County, Alabama. It was in force for 29 min. 1 report 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 4, 2012, 7:15 AM CDT (12:15 UTC)
Expired: Jun 4, 2012, 7:44 AM CDT
In force: 29 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Greene County, AL, Pickens County, AL, Tuscaloosa County, AL

The radar

The Columbus AFB radar (KGWX), 72 km from the middle of the area, began a volume at 12:17 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 4, 7:18 AM CDT	TSTM WND DMG	Carrollton, AL	TREE DOWN ON POWER LINE IN CARROLLTON.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 0.3 hours before the alert went out and 124 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: 1413 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 652 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 96 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

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

888 
WUUS54 KBMX 041215
SVRBMX
ALC063-107-125-041300-
/O.NEW.KBMX.SV.W.0162.120604T1215Z-120604T1300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
715 AM CDT MON JUN 4 2012

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN GREENE COUNTY IN WEST CENTRAL ALABAMA...
  PICKENS COUNTY IN WEST CENTRAL ALABAMA...
  WEST CENTRAL TUSCALOOSA COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 800 AM CDT

* AT 715 AM CDT...THE NATIONAL WEATHER SERVICE INDICATED A LINE OF
  SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED
  ALONG A LINE EXTENDING FROM 6 MILES NORTH OF GORDO TO 7 MILES
  SOUTHWEST OF ETHELSVILLE...AND MOVING SOUTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PICKENSVILLE...GORDO...CARROLLTON...ALICEVILLE...GARDEN...
  MCMULLEN...BENEVOLA AND JENA.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBER 62...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN BIRMINGHAM.

&&

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

LAT...LON 3339 8830 3340 8829 3349 8780 3309 8763
      3297 8814 3322 8832
TIME...MOT...LOC 1215Z 321DEG 35KT 3339 8790 3331 8826

$$

75

2 follow-up statements

954 
WWUS54 KBMX 041228
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
728 AM CDT MON JUN 4 2012

ALC063-107-125-041300-
/O.CON.KBMX.SV.W.0162.000000T0000Z-120604T1300Z/
GREENE AL-PICKENS AL-TUSCALOOSA AL-
728 AM CDT MON JUN 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL
TUSCALOOSA...PICKENS AND NORTHWESTERN GREENE COUNTIES UNTIL 800 AM
CDT...

AT 728 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 5 MILES NORTHEAST OF GORDO TO 6
MILES NORTHEAST OF PICKENSVILLE...MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  GORDO...CARROLLTON...ALICEVILLE...GARDEN...MCMULLEN...BENEVOLA...
  JENA...MANTUA...OWENS AND BROWNVILLE.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBER 62...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN BIRMINGHAM.

&&

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

LAT...LON 3325 8832 3339 8830 3340 8829 3343 8811
      3344 8778 3309 8763 3297 8814 3310 8823
TIME...MOT...LOC 1228Z 312DEG 25KT 3337 8783 3329 8819

$$

75

650 
WWUS54 KBMX 041244
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
744 AM CDT MON JUN 4 2012

ALC063-107-125-041254-
/O.CAN.KBMX.SV.W.0162.000000T0000Z-120604T1300Z/
GREENE AL-PICKENS AL-TUSCALOOSA AL-
744 AM CDT MON JUN 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL TUSCALOOSA...
PICKENS AND NORTHWESTERN GREENE COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN BIRMINGHAM.

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

LAT...LON 3325 8832 3339 8830 3340 8829 3343 8811
      3344 8778 3309 8763 3297 8814 3310 8823
TIME...MOT...LOC 1244Z 312DEG 25KT 3328 8775 3320 8811

$$

75

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 12:15 AM CDT	Special Weather Statement	BMX	Marion, Winston	45 min
Jun 4, 12:39 AM CDT	Special Weather Statement	BMX	Cherokee, Etowah	51 min
Jun 4, 12:57 AM CDT	Special Weather Statement	BMX	Fayette, Lamar, Marion, Walker, Winston	48 min
Jun 4, 5:00 AM CDT	Severe Thunderstorm Warning	BMX	Marion	45 min
Jun 4, 5:42 AM CDT	Special Weather Statement	BMX	Fayette, Lamar, Walker, Winston	48 min
Jun 4, 6:28 AM CDT	Special Weather Statement	BMX	Fayette, Jefferson, Lamar, Walker	47 min
Jun 4, 6:49 AM CDT	Special Weather Statement	BMX	St. Clair	41 min
Jun 4, 7:12 AM CDT	Special Weather Statement	BMX	Clay, Pickens, Shelby, Talladega, Tuscaloosa	48 min
Jun 4, 7:32 AM CDT	Special Weather Statement	BMX	Calhoun, Clay, Cleburne	58 min
Jun 4, 7:51 AM CDT	Special Weather Statement	BMX	Bibb, Chilton	39 min
Jun 4, 7:56 AM CDT	Special Weather Statement	BMX	Coosa, Randolph, Tallapoosa	64 min
Jun 4, 8:22 AM CDT	Special Weather Statement	BMX	Chambers	38 min
Jun 4, 8:25 AM CDT	Special Weather Statement	BMX	Autauga, Elmore	65 min
Jun 4, 8:27 AM CDT	Special Weather Statement	BMX	Chilton	18 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2012 Every severe thunderstorm warning in 2012

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.