Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 95, NWS Birmingham, AL

April 5, 2012Greene County, Hale County, Tuscaloosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 5, 2012, 10:26 AM CDT for Greene County, Hale County, Tuscaloosa County, Alabama. It was in force for 64 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: Apr 5, 2012, 10:26 AM CDT (15:26 UTC)
Expired: Apr 5, 2012, 11:30 AM CDT
In force: 64 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Greene County, AL, Hale County, AL, Tuscaloosa County, AL

The radar

The Birmingham radar (KBMX), 97 km from the middle of the area, began a volume at 15:27 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
Apr 5, 10:58 AM CDT	HAIL 1.75	Havana, AL	GOLF BALL SIZED HAIL REPORTED IN HAVANA.

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
Apr 5, 9:14 AM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 3.4 hours before the alert went out and 97 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: 315 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 754 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: -91 m²/s²
0-3 km storm-relative helicity: -43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.5

Open this sounding in Storm Lab

The text

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

294 
WUUS54 KBMX 051526
SVRBMX
ALC063-065-125-051630-
/O.NEW.KBMX.SV.W.0095.120405T1526Z-120405T1630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1026 AM CDT THU APR 5 2012

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN GREENE COUNTY IN WEST CENTRAL ALABAMA...
  HALE COUNTY IN WEST CENTRAL ALABAMA...
  SOUTHWESTERN TUSCALOOSA COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 1130 AM CDT

* AT 1023 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 ALICEVILLE TO ALLISON TO THE UNIVERSITY
  OF WEST ALABAMA...AND MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EUTAW...GREENSBORO...UNION...WALDEN QUARTERS...WEDGEWORTH...
  EVANSVILLE...FORKLAND AND AKRON.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBERS 45 THROUGH 62...

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 3312 8792 3315 8755 3294 8742 3283 8742
      3283 8747 3268 8747 3266 8748 3265 8752
      3258 8753 3259 8789 3259 8790 3261 8788
      3259 8786 3261 8784 3263 8792
TIME...MOT...LOC 1526Z 270DEG 34KT 3308 8809 3282 8796
          3259 8813

$$

61

3 follow-up statements

162 
WWUS54 KBMX 051556
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1056 AM CDT THU APR 5 2012

ALC063-065-125-051630-
/O.CON.KBMX.SV.W.0095.000000T0000Z-120405T1630Z/
GREENE AL-HALE AL-TUSCALOOSA AL-
1056 AM CDT THU APR 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
TUSCALOOSA...HALE AND EASTERN GREENE COUNTIES UNTIL 1130 AM CDT...

AT 1055 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 NORTH OF KNOXVILLE TO 7
MILES NORTHEAST OF SAWYERVILLE TO ARCOLA...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  GREENSBORO...GREENSBORO MUNICIPAL AIRPORT...MOUNDVILLE...SHELTON
  STATE COMMUNITY COLLEGE...NEWBERN...HARPER HILL...HAVANA...
  FOSTERS...MOUNDVILLE AIRPORT AND FOSTERS BOAT LANDING.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBERS 52 THROUGH 62...

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 3283 8780 3298 8792 3312 8792 3315 8761
      3314 8754 3294 8742 3283 8742 3283 8747
      3268 8747 3266 8748 3265 8752 3258 8753
      3259 8790 3260 8784 3264 8792
TIME...MOT...LOC 1556Z 270DEG 34KT 3307 8775 3281 8762
          3258 8780

$$

61

559 
WWUS54 KBMX 051610
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1110 AM CDT THU APR 5 2012

ALC125-051620-
/O.CAN.KBMX.SV.W.0095.000000T0000Z-120405T1630Z/
TUSCALOOSA AL-
1110 AM CDT THU APR 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN TUSCALOOSA COUNTY
IS CANCELLED...

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

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

LAT...LON 3277 8770 3293 8769 3300 8771 3301 8764
      3299 8759 3300 8746 3294 8742 3283 8742
      3283 8747 3268 8747 3266 8748 3265 8752
      3258 8753 3259 8785
TIME...MOT...LOC 1610Z 270DEG 34KT 3305 8759 3279 8746
          3257 8765

$$

ALC063-065-051630-
/O.CON.KBMX.SV.W.0095.000000T0000Z-120405T1630Z/
GREENE AL-HALE AL-
1110 AM CDT THU APR 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR HALE AND
SOUTHEASTERN GREENE COUNTIES UNTIL 1130 AM CDT...

AT 1105 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM MOUNDVILLE TO 8 MILES NORTHEAST
OF GREENSBORO TO ARCOLA...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  NEWBERN...PHIPPS AND WATEROAK.

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 3277 8770 3293 8769 3300 8771 3301 8764
      3299 8759 3300 8746 3294 8742 3283 8742
      3283 8747 3268 8747 3266 8748 3265 8752
      3258 8753 3259 8785
TIME...MOT...LOC 1610Z 270DEG 34KT 3305 8759 3279 8746
          3257 8765

$$

61

736 
WWUS54 KBMX 051625
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1125 AM CDT THU APR 5 2012

ALC063-065-051635-
/O.EXP.KBMX.SV.W.0095.000000T0000Z-120405T1630Z/
GREENE AL-HALE AL-
1125 AM CDT THU APR 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR HALE AND SOUTHEASTERN GREENE
COUNTIES WILL EXPIRE AT 1130 AM CDT...

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

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 3277 8770 3293 8769 3300 8771 3301 8764
      3299 8759 3300 8746 3294 8742 3283 8742
      3283 8747 3268 8747 3266 8748 3265 8752
      3258 8753 3259 8785
TIME...MOT...LOC 1625Z 270DEG 34KT 3304 8742 3277 8729
          3256 8748

$$

61

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 9:41 AM CDT	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	64 min
Apr 5, 11:07 AM CDT	Severe Thunderstorm Warning	BMX	Bibb, Perry	53 min
Apr 5, 11:27 AM CDT	Special Weather Statement	BMX	Marengo	48 min
Apr 5, 11:44 AM CDT	Severe Thunderstorm Warning	BMX	Dallas, Marengo	46 min
Apr 5, 12:03 PM CDT	Special Weather Statement	BMX	Chilton, Shelby	57 min
Apr 5, 12:21 PM CDT	Special Weather Statement	BMX	Autauga, Lowndes	54 min
Apr 5, 12:28 PM CDT	Special Weather Statement	BMX	Dallas	32 min
Apr 5, 12:49 PM CDT	Special Weather Statement	BMX	Coosa, Elmore	56 min
Apr 5, 12:56 PM CDT	Special Weather Statement	BMX	Montgomery	64 min
Apr 5, 3:56 PM CDT	Special Weather Statement	BMX	Marion	49 min
Apr 5, 4:17 PM CDT	Severe Thunderstorm Warning	BMX	Lamar	28 min
Apr 5, 4:41 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion	49 min
Apr 5, 4:52 PM CDT	Special Weather Statement	BMX	Pickens	38 min
Apr 5, 5:09 PM CDT	Severe Thunderstorm Warning	BMX	Marion, Walker, Winston	66 min
Apr 5, 5:24 PM CDT	Special Weather Statement	BMX	Hale	51 min
Apr 5, 5:36 PM CDT	Special Weather Statement	BMX	Tuscaloosa	39 min
Apr 5, 5:38 PM CDT	Severe Thunderstorm Warning	BMX	Walker	52 min
Apr 5, 5:59 PM CDT	Special Weather Statement	BMX	Jefferson	46 min
Apr 5, 6:06 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	39 min
Apr 5, 6:09 PM CDT	Special Weather Statement	BMX	Dallas	51 min
Apr 5, 6:14 PM CDT	Special Weather Statement	BMX	Blount	46 min
Apr 5, 6:18 PM CDT	Special Weather Statement	BMX	Chilton	42 min
Apr 5, 6:25 PM CDT	Special Weather Statement	BMX	Bibb	65 min
Apr 5, 6:27 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Dallas, Lowndes	48 min
Apr 5, 6:28 PM CDT	Special Weather Statement	BMX	Shelby	47 min
Apr 5, 6:33 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton, Shelby	42 min
Apr 5, 6:37 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Chilton, Dallas, Elmore, Perry	53 min
Apr 5, 6:43 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, St. Clair, Shelby	47 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.