Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 93, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Mar 31, 2012, 10:39 PM CDT for Lamar County, Marion County, Alabama. It was in force for 51 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, 10:39 PM CDT (03:39 UTC)
- Expired
- Mar 31, 2012, 11:30 PM CDT
- In force
- 51 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
Counties Lamar County, AL, Marion County, AL
The radar
The Columbus AFB radar (KGWX), 25 km from the middle of the area, began a volume at 03:40 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, 11:05 PM CDT | HAIL 1.5 | 2 Ne Detroit, AL | STORM CHASER REPORTED PING PONG BALL SIZE HAIL ALONG HIGHWAY 17 NORTHEAST OF DETROIT. |
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, 8:14 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 3.7 hours before the alert went out and 159 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
- 927 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1532 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
052 WUUS54 KBMX 010339 SVRBMX ALC075-093-010430- /O.NEW.KBMX.SV.W.0093.120401T0339Z-120401T0430Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 1039 PM CDT SAT MAR 31 2012 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN LAMAR COUNTY IN WEST CENTRAL ALABAMA... WEST CENTRAL MARION COUNTY IN NORTHWEST ALABAMA... * UNTIL 1130 PM CDT * AT 1036 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 5 MILES NORTH OF DETROIT...OR 11 MILES WEST OF HAMILTON...AND MOVING SOUTH AT 25 MPH. AT 1025 PM CDT...GOLF BALL SIZE HAIL WAS REPORTED NEAR THE STATE LINE ON HIGHWAY 78 IN WESTERN MARION COUNTY WITH THIS STORM. * LOCATIONS IMPACTED INCLUDE... SULLIGENT...DETROIT...BEAVERTON...CREWS...LAMAR COUNTY AIRPORT... BYRD...HENSON SPRINGS AND PINE SPRINGS. THIS INCLUDES... US 78 EXIT NUMBERS 3 THROUGH 7... 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 3420 8819 3421 8806 3383 8800 3382 8825 TIME...MOT...LOC 0338Z 002DEG 20KT 3409 8816 $$ GRANTHAM
3 follow-up statements
507 WWUS54 KBMX 010355 SVSBMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 1055 PM CDT SAT MAR 31 2012 ALC075-093-010430- /O.CON.KBMX.SV.W.0093.000000T0000Z-120401T0430Z/ LAMAR AL-MARION AL- 1055 PM CDT SAT MAR 31 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL MARION AND NORTHERN LAMAR COUNTIES UNTIL 1130 PM CDT... AT 1049 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 5 MILES NORTH OF DETROIT...OR 10 MILES WEST OF HAMILTON...MOVING SOUTH AT 15 MPH. LOCATIONS IMPACTED INCLUDE... SULLIGENT...DETROIT...CREWS...BEAVERTON...LAMAR COUNTY AIRPORT... BYRD...HENSON SPRINGS AND PINE SPRINGS. THIS INCLUDES... US 78 EXIT NUMBERS 3 THROUGH 7... TO REPORT SEVERE WEATHER...CALL 1-800-856-0758. LAT...LON 3420 8819 3421 8806 3383 8800 3382 8825 TIME...MOT...LOC 0355Z 343DEG 13KT 3408 8814 $$ GRANTHAM
390 WWUS54 KBMX 010410 SVSBMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 1110 PM CDT SAT MAR 31 2012 ALC075-093-010430- /O.CON.KBMX.SV.W.0093.000000T0000Z-120401T0430Z/ LAMAR AL-MARION AL- 1110 PM CDT SAT MAR 31 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL MARION AND NORTHERN LAMAR COUNTIES UNTIL 1130 PM CDT... AT 1108 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL... AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR DETROIT...OR 10 MILES NORTH OF SULLIGENT...MOVING SOUTH AT 15 MPH. AT 1105 PM CDT...PING PONG BALL SIZE HAIL WAS REPORTED NEAR DETROIT WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... SULLIGENT...CREWS...LAMAR COUNTY AIRPORT...HENSON SPRINGS AND PINE SPRINGS. TO REPORT SEVERE WEATHER...CALL 1-800-856-0758. LAT...LON 3409 8820 3411 8806 3383 8800 3382 8825 TIME...MOT...LOC 0410Z 347DEG 14KT 3403 8815 $$ GRANTHAM
195
WWUS54 KBMX 010420
SVSBMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1120 PM CDT SAT MAR 31 2012
ALC093-010430-
/O.CAN.KBMX.SV.W.0093.000000T0000Z-120401T0430Z/
MARION AL-
1120 PM CDT SAT MAR 31 2012
...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL MARION COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.
LAT...LON 3384 8824 3385 8824 3406 8821 3406 8810
3405 8809 3405 8805 3383 8800 3382 8825
3383 8825
TIME...MOT...LOC 0420Z 347DEG 14KT 3399 8814
$$
ALC075-010430-
/O.CON.KBMX.SV.W.0093.000000T0000Z-120401T0430Z/
LAMAR AL-
1120 PM CDT SAT MAR 31 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN LAMAR
COUNTY UNTIL 1130 PM CDT...
AT 1117 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
DETROIT...OR 7 MILES NORTH OF SULLIGENT...MOVING SOUTH AT 15 MPH.
LOCATIONS IMPACTED INCLUDE...
SULLIGENT...CREWS...BEAVERTON...LAMAR COUNTY AIRPORT AND PINE
SPRINGS.
TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.
LAT...LON 3384 8824 3385 8824 3406 8821 3406 8810
3405 8809 3405 8805 3383 8800 3382 8825
3383 8825
TIME...MOT...LOC 0420Z 347DEG 14KT 3399 8814
$$
GRANTHAMThe office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 7:13 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 47 min |
| Mar 31, 7:15 PM CDT | Special Weather Statement | BMX | Clay, Randolph, Talladega | 45 min |
| Mar 31, 7:23 PM CDT | Severe Thunderstorm Warning | BMX | Walker | 52 min |
| Mar 31, 7:39 PM CDT | Severe Thunderstorm Warning | BMX | Winston | 51 min |
| Mar 31, 7:55 PM CDT | Special Weather Statement | BMX | Chambers, Coosa, Elmore, Lee, Tallapoosa | 50 min |
| Mar 31, 7:58 PM CDT | Severe Thunderstorm Warning | BMX | Bibb, Jefferson, Tuscaloosa | 47 min |
| Mar 31, 8:14 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson, Tuscaloosa, Walker | 46 min |
| Mar 31, 8:21 PM CDT | Special Weather Statement | BMX | Shelby | 24 min |
| Mar 31, 8:28 PM CDT | Severe Thunderstorm Warning | BMX | Fayette, Walker, Winston | 47 min |
| Mar 31, 8:36 PM CDT | Severe Thunderstorm Warning | BMX | Bibb, Chilton, Shelby | 39 min |
| Mar 31, 8:44 PM CDT | Areal Flood Advisory | BMX | Jefferson, Shelby | 106 min |
| Mar 31, 8:59 PM CDT | Severe Thunderstorm Warning | BMX | Bibb, Jefferson, Tuscaloosa | 46 min |
| Mar 31, 9:10 PM CDT | Special Weather Statement | BMX | Chilton | 50 min |
| Mar 31, 9:12 PM CDT | Special Weather Statement | BMX | Walker | 48 min |
| Mar 31, 9:39 PM CDT | Special Weather Statement | BMX | Bibb | 51 min |
| Mar 31, 9:56 PM CDT | Special Weather Statement | BMX | Autauga | 49 min |
| Mar 31, 9:57 PM CDT | Special Weather Statement | BMX | Marion | 48 min |
| Mar 31, 10:03 PM CDT | Severe Thunderstorm Warning | BMX | Marion | 42 min |
| Mar 31, 11:29 PM CDT | Special Weather Statement | BMX | Lamar | 46 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.