Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 73, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Mar 31, 2012, 5:32 PM CDT for Walker County, Winston County, Alabama. It was in force for 43 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
- Mar 31, 2012, 5:32 PM CDT (22:32 UTC)
- Expired
- Mar 31, 2012, 6:15 PM CDT
- In force
- 43 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
Counties Walker County, AL, Winston County, AL
The radar
The Columbus AFB radar (KGWX), 96 km from the middle of the area, began a volume at 22:34 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 31, 5:59 PM CDT | HAIL 1.75 | Manchester, AL | GOLF BALL SIZED HAIL IN MANCHESTER |
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 31, 5:04 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 10.5 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.
- Mixed-layer CAPE
- 1095 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 580 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
600 WUUS54 KBMX 312232 SVRBMX ALC127-133-312315- /O.NEW.KBMX.SV.W.0073.120331T2232Z-120331T2315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 532 PM CDT SAT MAR 31 2012 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL WALKER COUNTY IN ALABAMA... SOUTH CENTRAL WINSTON COUNTY IN NORTHWEST ALABAMA... * UNTIL 615 PM CDT * AT 530 PM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CORINTH REC AREA...OR 6 MILES WEST OF ARLEY...AND MOVING SOUTH AT 10 MPH. * LOCATIONS IMPACTED INCLUDE... JASPER...FALLS CITY...POPLAR SPRINGS...MCDOWELL CAMP GROUNDS...LAKE SHORE...CURRY...WALKER COUNTY AIRPORT AND LUPTON. THIS INCLUDES... US 78 EXIT NUMBERS 52 THROUGH 65... 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 3378 8716 3379 8747 3416 8743 3416 8721 TIME...MOT...LOC 2232Z 000DEG 8KT 3407 8732 $$ 56
3 follow-up statements
832 WWUS54 KBMX 312241 SVSBMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 541 PM CDT SAT MAR 31 2012 ALC127-133-312315- /O.CON.KBMX.SV.W.0073.000000T0000Z-120331T2315Z/ WALKER AL-WINSTON AL- 541 PM CDT SAT MAR 31 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL WINSTON AND CENTRAL WALKER COUNTIES UNTIL 615 PM CDT... AT 539 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR MCDOWELL CAMP GROUNDS...OR 7 MILES WEST OF ARLEY...MOVING SOUTH AT 10 MPH. LOCATIONS IMPACTED INCLUDE... JASPER...POPLAR SPRINGS...MCDOWELL CAMP GROUNDS...LAKE SHORE... CURRY...WALKER COUNTY AIRPORT...LUPTON...MANCHESTER...GAMBLE AND HOLLY GROVE. THIS INCLUDES... US 78 EXIT NUMBERS 52 THROUGH 65... TO REPORT SEVERE WEATHER...CALL 1-800-856-0758. LAT...LON 3378 8716 3379 8747 3408 8742 3408 8721 TIME...MOT...LOC 2241Z 000DEG 8KT 3405 8732 $$ 56
090 WWUS54 KBMX 312257 SVSBMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 557 PM CDT SAT MAR 31 2012 ALC133-312307- /O.CAN.KBMX.SV.W.0073.000000T0000Z-120331T2315Z/ WINSTON AL- 557 PM CDT SAT MAR 31 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL WINSTON COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. TO REPORT SEVERE WEATHER...CALL 1-800-856-0758. LAT...LON 3378 8716 3379 8747 3400 8741 3399 8721 TIME...MOT...LOC 2257Z 004DEG 17KT 3391 8730 $$ ALC127-312315- /O.CON.KBMX.SV.W.0073.000000T0000Z-120331T2315Z/ WALKER AL- 557 PM CDT SAT MAR 31 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL WALKER COUNTY UNTIL 615 PM CDT... AT 553 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 5 MILES WEST OF CURRY...OR 6 MILES NORTH OF JASPER...MOVING SOUTH AT 20 MPH. LOCATIONS IMPACTED INCLUDE... JASPER...MANCHESTER...WALKER COUNTY AIRPORT...GAMBLE...BOLDO... CEDRUM AREA...HOLLY GROVE AND TOWNLEY. THIS INCLUDES... US 78 EXIT NUMBERS 52 THROUGH 65... TO REPORT SEVERE WEATHER...CALL 1-800-856-0758. LAT...LON 3378 8716 3379 8747 3400 8741 3399 8721 TIME...MOT...LOC 2257Z 004DEG 17KT 3391 8730 $$ 56
308 WWUS54 KBMX 312303 SVSBMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 603 PM CDT SAT MAR 31 2012 ALC127-312315- /O.CON.KBMX.SV.W.0073.000000T0000Z-120331T2315Z/ WALKER AL- 603 PM CDT SAT MAR 31 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL WALKER COUNTY UNTIL 615 PM CDT... AT 558 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM PRODUCING GOLF BALL SIZE HAIL IN MANCHESTER. THIS STORM WAS LOCATED JUST NORTHWEST OF DOWNTOWN JASPER...MOVING SOUTH AT 20 MPH. LOCATIONS IMPACTED INCLUDE... JASPER...BOLDO...CEDRUM AREA...HOLLY GROVE AND TOWNLEY. THIS INCLUDES... US 78 EXIT NUMBERS 52 THROUGH 65... PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && TO REPORT SEVERE WEATHER...CALL 1-800-856-0758. LAT...LON 3378 8716 3379 8747 3400 8741 3399 8721 TIME...MOT...LOC 2303Z 004DEG 17KT 3388 8730 $$ 56
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 4:27 AM CDT | Special Weather Statement | BMX | Lowndes | 48 min |
| Mar 31, 5:18 AM CDT | Special Weather Statement | BMX | Montgomery | 42 min |
| Mar 31, 5:27 AM CDT | Areal Flood Advisory | BMX | Lowndes, Montgomery | 3 hr |
| Mar 31, 5:33 AM CDT | Special Weather Statement | BMX | Russell | 42 min |
| Mar 31, 5:56 AM CDT | Dense Fog Advisory | BMX | Fayette, Lamar, Marion, Walker, Winston | 3 hr |
| Mar 31, 6:11 AM CDT | Special Weather Statement | BMX | Bullock, Macon, Russell | 49 min |
| Mar 31, 6:48 AM CDT | Areal Flood Advisory | BMX | Barbour, Bullock, Macon, Pike, Russell | 117 min |
| Mar 31, 7:32 AM CDT | Flash Flood Warning | BMX | Lowndes, Montgomery | 3 hr |
| Mar 31, 4:23 PM CDT | Special Weather Statement | BMX | Winston | 37 min |
| Mar 31, 4:39 PM CDT | Severe Thunderstorm Warning | BMX | Winston | 36 min |
| Mar 31, 4:48 PM CDT | Special Weather Statement | BMX | Walker | 27 min |
| Mar 31, 5:08 PM CDT | Severe Thunderstorm Warning | BMX | Walker, Winston | 52 min |
| Mar 31, 5:38 PM CDT | Severe Thunderstorm Warning | BMX | Blount, Etowah | 37 min |
| Mar 31, 5:46 PM CDT | Severe Thunderstorm Warning | BMX | Blount | 44 min |
| Mar 31, 5:49 PM CDT | Special Weather Statement | BMX | Cherokee | 26 min |
| Mar 31, 5:52 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson, Walker | 38 min |
| Mar 31, 6:08 PM CDT | Severe Thunderstorm Warning | BMX | Blount, Calhoun, Etowah, St. Clair | 52 min |
| Mar 31, 6:11 PM CDT | Severe Thunderstorm Warning | BMX | Walker | 49 min |
| Mar 31, 6:19 PM CDT | Severe Thunderstorm Warning | BMX | Winston | 41 min |
| Mar 31, 6:35 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson, Walker | 40 min |
| Mar 31, 6:37 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun, Clay, Cleburne, Randolph, St. Clair, Talladega | 38 min |
| Mar 31, 6:57 PM CDT | Severe Thunderstorm Warning | BMX | Walker | 33 min |
| Mar 31, 6:58 PM CDT | Severe Thunderstorm Warning | BMX | Winston | 32 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2012Every 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.