Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 285, NWS Birmingham, AL

September 3, 2012Hale County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Sep 3, 2012, 6:57 PM CDT for Hale County, Alabama. It was in force for 63 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: Sep 3, 2012, 6:57 PM CDT (23:57 UTC)
Expired: Sep 3, 2012, 8:00 PM CDT
In force: 63 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

County Hale County, AL

The radar

The Birmingham radar (KBMX), 97 km from the middle of the area, began a volume at 23:55 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
Sep 3, 7:20 PM CDT	TSTM WND DMG	Ssw Wedgeworth, AL	APPROXIMATELY A HALF DOZEN TREES DOWN NEAR THE INTERSECTION OF HWY 60 AND HWY 14. TIME ESTIMATED FROM RADAR.

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
Sep 3, 3:46 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 12.0 hours before the alert went out and 96 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: 215 J/kg
Mixed-layer CIN: -149 J/kg
Mixed-layer LCL: 1125 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 93 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

529 
WUUS54 KBMX 032357
SVRBMX
ALC065-040100-
/O.NEW.KBMX.SV.W.0285.120903T2357Z-120904T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
657 PM CDT MON SEP 3 2012

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HALE COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 800 PM CDT

* AT 655 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
  KNOXVILLE TO 7 MILES NORTHEAST OF GREENSBORO...AND MOVING SOUTH AT
  10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  GREENSBORO...AKRON...EVANSVILLE...WEDGEWORTH...NEWBERN...
  SAWYERVILLE...GREENSBORO MUNICIPAL AIRPORT AND SELDEN LOCK AND DAM.

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.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT MONDAY EVENING
FOR SOUTHERN ALABAMA.

TO REPORT SEVERE WEATHER...
CALL 1-800-856-0758 OR TWEET YOUR REPORT USING HASHTAG ALWX

LAT...LON 3281 8781 3286 8783 3291 8776 3293 8778
      3294 8773 3300 8771 3299 8742 3283 8742
      3283 8747 3266 8747 3265 8752 3249 8753
      3263 8779 3264 8775 3266 8779 3271 8779
      3271 8783 3275 8781 3276 8786
TIME...MOT...LOC 2357Z 001DEG 11KT 3295 8773 3274 8749

$$

GRANTHAM

2 follow-up statements

942 
WWUS54 KBMX 040019
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
719 PM CDT MON SEP 3 2012

ALC065-040100-
/O.CON.KBMX.SV.W.0285.000000T0000Z-120904T0100Z/
HALE AL-
719 PM CDT MON SEP 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR HALE COUNTY
UNTIL 800 PM CDT...

AT 719 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 AKRON TO 6 MILES NORTHEAST OF NEWBERN...MOVING SOUTH AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  GREENSBORO...AKRON...EVANSVILLE...WEDGEWORTH...NEWBERN...
  SAWYERVILLE...GREENSBORO MUNICIPAL AIRPORT AND CEDARVILLE.

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 3281 8781 3286 8783 3291 8776 3293 8778
      3294 8773 3300 8770 3283 8747 3266 8747
      3265 8752 3249 8753 3263 8779 3263 8775
      3266 8775 3266 8779 3271 8779 3271 8783
      3275 8781 3277 8783 3276 8786
TIME...MOT...LOC 0020Z 001DEG 11KT 3288 8773 3267 8749

$$

GRANTHAM

667 
WWUS54 KBMX 040040
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
740 PM CDT MON SEP 3 2012

ALC065-040100-
/O.CON.KBMX.SV.W.0285.000000T0000Z-120904T0100Z/
HALE AL-
740 PM CDT MON SEP 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN HALE
COUNTY UNTIL 800 PM CDT...

AT 739 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 WEDGEWORTH TO NEWBERN...MOVING SOUTH AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  SAWYERVILLE...GREENSBORO MUNICIPAL AIRPORT...NEWBERN AND
  CEDARVILLE.

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 3276 8786 3281 8781 3286 8783 3275 8747
      3266 8747 3265 8752 3249 8753 3263 8779
      3263 8775 3266 8775 3266 8779 3271 8779
      3271 8782 3275 8781 3277 8783
TIME...MOT...LOC 0040Z 001DEG 11KT 3278 8775 3261 8749

$$

GRANTHAM

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 2, 7:06 PM CDT	Special Weather Statement	BMX	Blount	39 min
Sep 2, 7:17 PM CDT	Areal Flood Advisory	BMX	Marion, Winston	118 min
Sep 2, 7:20 PM CDT	Special Weather Statement	BMX	DeKalb	25 min
Sep 2, 7:30 PM CDT	Special Weather Statement	BMX	Marion, Winston	45 min
Sep 2, 7:47 PM CDT	Special Weather Statement	BMX	Marion	28 min
Sep 2, 7:58 PM CDT	Special Weather Statement	BMX	Etowah	47 min
Sep 2, 8:14 PM CDT	Special Weather Statement	BMX	Marion, Winston	46 min
Sep 2, 8:23 PM CDT	Special Weather Statement	BMX	Cherokee	52 min
Sep 2, 9:05 PM CDT	Special Weather Statement	BMX	Winston	25 min
Sep 2, 9:10 PM CDT	Areal Flood Advisory	BMX	Etowah	110 min
Sep 2, 9:12 PM CDT	Severe Thunderstorm Warning	BMX	Lamar, Marion	48 min
Sep 2, 9:27 PM CDT	Areal Flood Advisory	BMX	Marion, Winston	108 min
Sep 2, 9:43 PM CDT	Special Weather Statement	BMX	Winston	47 min
Sep 2, 9:56 PM CDT	Special Weather Statement	BMX	Fayette, Lamar, Marion	49 min
Sep 2, 9:58 PM CDT	Areal Flood Advisory	BMX	Lamar	2 hr
Sep 2, 10:45 PM CDT	Special Weather Statement	BMX	Walker, Winston	45 min
Sep 2, 10:49 PM CDT	Special Weather Statement	BMX	Lamar, Pickens	41 min
Sep 2, 11:33 PM CDT	Special Weather Statement	BMX	Blount, Jefferson, Pickens, Tuscaloosa	57 min
Sep 3, 8:57 AM CDT	Areal Flood Advisory	BMX	Blount, Jefferson, St. Clair, Walker	3 hr
Sep 3, 2:43 PM CDT	Special Weather Statement	BMX	Lee, Macon, Russell	62 min
Sep 3, 3:10 PM CDT	Severe Thunderstorm Warning	BMX	Hale, Tuscaloosa	50 min
Sep 3, 3:13 PM CDT	Areal Flood Advisory	BMX	Lee, Macon, Russell	2 hr
Sep 3, 3:35 PM CDT	Special Weather Statement	BMX	Bibb, Perry	55 min
Sep 3, 3:48 PM CDT	Special Weather Statement	BMX	Barbour, Bullock, Russell	42 min
Sep 3, 3:55 PM CDT	Severe Thunderstorm Warning	BMX	Perry	35 min
Sep 3, 3:59 PM CDT	Tornado Warning	BMX	Perry	13 min
Sep 3, 4:27 PM CDT	Special Weather Statement	BMX	Barbour	48 min
Sep 3, 4:29 PM CDT	Areal Flood Advisory	BMX	Tuscaloosa	2 hr
Sep 3, 4:32 PM CDT	Special Weather Statement	BMX	Autauga, Chilton, Dallas, Perry	58 min
Sep 3, 5:04 PM CDT	Special Weather Statement	BMX	Jefferson	26 min
Sep 3, 5:07 PM CDT	Special Weather Statement	BMX	Hale	23 min
Sep 3, 5:08 PM CDT	Special Weather Statement	BMX	Hale	37 min
Sep 3, 5:22 PM CDT	Special Weather Statement	BMX	Lowndes, Montgomery	38 min
Sep 3, 5:30 PM CDT	Areal Flood Advisory	BMX	Jefferson	2 hr
Sep 3, 5:31 PM CDT	Severe Thunderstorm Warning	BMX	Hale	44 min
Sep 3, 5:41 PM CDT	Special Weather Statement	BMX	Elmore	49 min
Sep 3, 5:43 PM CDT	Special Weather Statement	BMX	Dallas	47 min
Sep 3, 5:47 PM CDT	Special Weather Statement	BMX	Jefferson	43 min
Sep 3, 5:49 PM CDT	Areal Flood Advisory	BMX	Hale, Perry	116 min
Sep 3, 5:50 PM CDT	Severe Thunderstorm Warning	BMX	Lowndes, Montgomery	55 min
Sep 3, 5:54 PM CDT	Severe Thunderstorm Warning	BMX	Perry	51 min
Sep 3, 6:10 PM CDT	Special Weather Statement	BMX	Tuscaloosa	50 min
Sep 3, 6:16 PM CDT	Severe Thunderstorm Warning	BMX	Hale	44 min
Sep 3, 6:19 PM CDT	Flash Flood Warning	BMX	Hale, Perry	3 hr
Sep 3, 6:21 PM CDT	Special Weather Statement	BMX	Walker	24 min
Sep 3, 6:28 PM CDT	Special Weather Statement	BMX	Jefferson	47 min
Sep 3, 6:29 PM CDT	Special Weather Statement	BMX	Greene	61 min
Sep 3, 6:32 PM CDT	Special Weather Statement	BMX	Bullock	58 min
Sep 3, 6:40 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Pickens	50 min
Sep 3, 6:54 PM CDT	Flash Flood Warning	BMX	Hale, Tuscaloosa	3 hr

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.