Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 38, NWS Birmingham, AL

March 2, 20124 counties in Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 2, 2012, 6:01 PM CST for 4 counties in Alabama. It was in force for 44 min. 5 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: Mar 2, 2012, 6:01 PM CST (00:01 UTC)
Expired: Mar 2, 2012, 6:45 PM CST
In force: 44 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Fayette County, AL, Lamar County, AL, Marion County, AL, Winston County, AL

The radar

The Columbus AFB radar (KGWX), 54 km from the middle of the area, began a volume at 00:02 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
Mar 2, 6:15 PM CST	TSTM WND DMG	Detroit, AL	TREES SNAPPED AND UPROOTED. PEOPLE TRAPPED IN STORM SHELTER.
Mar 2, 6:15 PM CST	HAIL 0.88	Detroit, AL
Mar 2, 6:23 PM CST	TSTM WND DMG	3 Ssw Hamilton, AL	TREES DOWN ON A RESIDENCE NEAR THE INTERSECTION OF CR 35 AND GEORGIA CIRCLE.
Mar 2, 6:30 PM CST	TSTM WND DMG	Hamilton, AL	ROOF AND SIGN DAMAGE TO SEVERAL BUSINESSES ALONG SOUTH MILITARY ST, INCLUDING SIGNIFICANT SHINGLE AND TILE DAMAGE TO A HOTEL CANOPY. WINDS ESTIMATED AT 60 MPH.
Mar 2, 6:52 PM CST	HAIL 0.75	6 Nne Haleyville, AL	PENNY SIZE HAIL WAS REPORTED.

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
Mar 2, 1:20 PM CST	Tornado Watch	SPC	9 hr
Mar 2, 4:37 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 0.0 hours before the alert went out and 137 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: 754 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1391 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 231 m²/s²
0-3 km storm-relative helicity: 315 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 7.4

Open this sounding in Storm Lab

The text

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

183 
WUUS54 KBMX 030001
SVRBMX
ALC057-075-093-133-030045-
/O.NEW.KBMX.SV.W.0038.120303T0001Z-120303T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
601 PM CST FRI MAR 2 2012

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN FAYETTE COUNTY IN WEST CENTRAL ALABAMA...
  NORTHERN LAMAR COUNTY IN WEST CENTRAL ALABAMA...
  MARION COUNTY IN NORTHWEST ALABAMA...
  WESTERN WINSTON COUNTY IN NORTHWEST ALABAMA...

* UNTIL 645 PM CST

* AT 558 PM CST...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 SMITHVILLE TO 9 MILES SOUTHEAST OF
  AMORY TO 6 MILES SOUTHEAST OF ABERDEEN...AND MOVING EAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SULLIGENT...VERNON...HAMILTON...WINFIELD...HALEYVILLE...LYNN...
  DETROIT AND BEDFORD.

THIS INCLUDES...
US 78 EXIT NUMBERS 3 THROUGH 34...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

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

LAT...LON 3424 8819 3432 8779 3431 8744 3409 8741
      3399 8751 3400 8764 3385 8763 3372 8825
TIME...MOT...LOC 0000Z 256DEG 51KT 3411 8836 3391 8833
          3376 8848

$$

27

2 follow-up statements

072 
WWUS54 KBMX 030017
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
617 PM CST FRI MAR 2 2012

ALC057-075-093-133-030045-
/O.CON.KBMX.SV.W.0038.000000T0000Z-120303T0045Z/
FAYETTE AL-LAMAR AL-MARION AL-WINSTON AL-
617 PM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
WINSTON...MARION...NORTHERN LAMAR AND NORTHWESTERN FAYETTE COUNTIES
UNTIL 645 PM CST...

AT 612 PM CST...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 7 MILES WEST OF WESTON TO
SULLIGENT TO BEDFORD...MOVING EAST AT 60 MPH.

LOCATIONS IMPACTED INCLUDE...
  VERNON...HAMILTON...WINFIELD...HALEYVILLE...LYNN...CREWS...
  WESTON...LAMAR COUNTY AIRPORT...BEAVERTON AND GUIN.

THIS INCLUDES...
US 78 EXIT NUMBERS 3 THROUGH 34...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

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

LAT...LON 3424 8819 3432 8779 3431 8744 3409 8741
      3399 8751 3400 8764 3385 8763 3372 8825
TIME...MOT...LOC 0017Z 256DEG 51KT 3416 8807 3396 8805
          3382 8820

$$

27

867 
WWUS54 KBMX 030037 RRA
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
637 PM CST FRI MAR 2 2012

ALC057-030047-
/O.CAN.KBMX.SV.W.0038.000000T0000Z-120303T0045Z/
FAYETTE AL-
637 PM CST FRI MAR 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN FAYETTE COUNTY IS
CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
WARNED AREA.

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

LAT...LON 3430 8744 3409 8741 3399 8751 3400 8764
      3393 8764 3393 8775 3391 8782 3392 8797
      3410 8807 3432 8779
TIME...MOT...LOC 0037Z 256DEG 51KT 3423 8773 3402 8772
          3389 8787

$$

ALC075-093-133-030045-
/O.CON.KBMX.SV.W.0038.000000T0000Z-120303T0045Z/
LAMAR AL-MARION AL-WINSTON AL-
637 PM CST FRI MAR 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
WINSTON...MARION AND NORTHEASTERN LAMAR COUNTIES UNTIL 645 PM CST...

AT 635 PM CST...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 BRINN TO BRILLIANT TO BLUFF...
MOVING EAST AT 60 MPH.

LOCATIONS IMPACTED INCLUDE...
  WINFIELD...HALEYVILLE...LYNN...NEEDMORE...ASHRIDGE...BEAR CREEK...
  DELMAR...NATURAL BRIDGE...POSEY FIELD AIRPORT AND WEISS.

THIS INCLUDES...
US 78 EXIT NUMBERS 14 THROUGH 34...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

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

LAT...LON 3430 8744 3409 8741 3399 8751 3400 8764
      3393 8764 3393 8775 3391 8782 3392 8797
      3410 8807 3432 8779
TIME...MOT...LOC 0037Z 256DEG 51KT 3423 8773 3402 8772
          3389 8787

$$

27

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 2, 6:01 PM CST	Severe Thunderstorm Warning	BMX	Autauga, Coosa, Elmore	44 min
Mar 2, 6:05 PM CST	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Walker	43 min
Mar 2, 6:11 PM CST	Severe Thunderstorm Warning	BMX	Calhoun, Cleburne	49 min
Mar 2, 6:19 PM CST	Tornado Warning	BMX	Calhoun, Cleburne	41 min
Mar 2, 6:22 PM CST	Tornado Warning	BMX	Lowndes, Montgomery	15 min
Mar 2, 6:33 PM CST	Severe Thunderstorm Warning	BMX	Blount, Etowah	42 min
Mar 2, 6:44 PM CST	Severe Thunderstorm Warning	BMX	Bibb, Jefferson, Shelby, Tuscaloosa	46 min
Mar 2, 6:44 PM CST	Severe Thunderstorm Warning	BMX	Sumter	46 min
Mar 2, 6:46 PM CST	Severe Thunderstorm Warning	BMX	Winston	29 min
Mar 2, 7:06 PM CST	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	39 min
Mar 2, 7:11 PM CST	Severe Thunderstorm Warning	BMX	Cherokee, Etowah	49 min
Mar 2, 7:15 PM CST	Severe Thunderstorm Warning	BMX	Jefferson, St. Clair	45 min
Mar 2, 7:21 PM CST	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	39 min
Mar 2, 7:36 PM CST	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Pickens	39 min
Mar 2, 7:49 PM CST	Severe Thunderstorm Warning	BMX	Jefferson, Tuscaloosa, Walker	41 min
Mar 2, 7:51 PM CST	Severe Thunderstorm Warning	BMX	Marion, Walker, Winston	39 min
Mar 2, 7:59 PM CST	Severe Thunderstorm Warning	BMX	Fayette, Tuscaloosa, Walker	46 min
Mar 2, 8:13 PM CST	Severe Thunderstorm Warning	BMX	Fayette, Walker	34 min
Mar 2, 8:17 PM CST	Severe Thunderstorm Warning	BMX	Fayette, Lamar	28 min
Mar 2, 8:38 PM CST	Areal Flood Advisory	BMX	Greene, Hale, Marengo, Sumter	112 min
Mar 2, 8:38 PM CST	Tornado Warning	BMX	Dallas, Hale, Marengo, Perry	52 min
Mar 2, 8:56 PM CST	Severe Thunderstorm Warning	BMX	Marion	49 min
Mar 2, 9:13 PM CST	Tornado Warning	BMX	Autauga, Chilton, Dallas, Perry	47 min
Mar 2, 9:16 PM CST	Areal Flood Advisory	BMX	Walker, Winston	119 min
Mar 2, 9:45 PM CST	Tornado Warning	BMX	Autauga, Chilton	29 min
Mar 2, 9:47 PM CST	Areal Flood Advisory	BMX	Blount	3 hr
Mar 2, 10:00 PM CST	Severe Thunderstorm Warning	BMX	Clay, Cleburne, Randolph, Talladega	45 min
Mar 2, 10:08 PM CST	Tornado Warning	BMX	Clay, Cleburne, Randolph, Talladega	24 min
Mar 2, 10:11 PM CST	Tornado Warning	BMX	Coosa	31 min
Mar 2, 10:22 PM CST	Severe Thunderstorm Warning	BMX	Jefferson	38 min
Mar 2, 10:32 PM CST	Areal Flood Advisory	BMX	Talladega	118 min
Mar 2, 10:34 PM CST	Tornado Warning	BMX	Tallapoosa	41 min
Mar 2, 10:37 PM CST	Areal Flood Advisory	BMX	Jefferson	3 hr
Mar 2, 10:45 PM CST	Severe Thunderstorm Warning	BMX	Cherokee, Etowah	45 min
Mar 2, 10:46 PM CST	Areal Flood Advisory	BMX	Blount, Etowah, St. Clair	3 hr
Mar 2, 10:52 PM CST	Severe Thunderstorm Warning	BMX	Jefferson, St. Clair, Shelby	23 min
Mar 2, 11:00 PM CST	Tornado Warning	BMX	Chambers	45 min
Mar 2, 11:05 PM CST	Areal Flood Advisory	BMX	Dallas, Greene, Hale, Marengo, Sumter	3 hr
Mar 2, 11:15 PM CST	Areal Flood Advisory	BMX	Bibb, St. Clair, Shelby, Talladega	3 hr
Mar 2, 11:47 PM CST	Severe Thunderstorm Warning	BMX	Calhoun, Cleburne	15 min
Mar 3, 12:25 AM CST	Areal Flood Advisory	BMX	Chilton, Clay, Coosa, Perry, Talladega, Tallapoosa	3 hr
Mar 3, 4:12 AM CST	Areal Flood Advisory	BMX	Bibb, Chilton, Dallas, Greene, Hale, Marengo and 2 more	3 hr
Mar 3, 4:27 AM CST	Areal Flood Advisory	BMX	Clay, Coosa, St. Clair, Shelby, Talladega, Tallapoosa	3 hr
Mar 3, 4:33 AM CST	Areal Flood Advisory	BMX	Calhoun, Chambers, Cleburne, Randolph, St. Clair	3 hr
Mar 3, 5:15 AM CST	Special Weather Statement	BMX	Russell	45 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.