Alert archive / Alabama / Tornado Warnings in 2011
Tornado Warning 172, NWS Birmingham, AL
NWS Birmingham, AL issued this tornado warning at Dec 22, 2011, 12:59 PM CST for 4 counties in Alabama. It was in force for 31 min. 2 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
- Dec 22, 2011, 12:59 PM CST (18:59 UTC)
- Expired
- Dec 22, 2011, 1:30 PM CST
- In force
- 31 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
Counties Bibb County, AL, Chilton County, AL, Perry County, AL, Shelby County, AL
The radar
The Birmingham radar (KBMX), 51 km from the middle of the area, began a volume at 19:00 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 |
|---|---|---|---|
| Dec 22, 1:25 PM CST | TSTM WND DMG | Lawley, AL | TREES DOWN BWTWEEN LAWLEY AND RANDOLPH. |
| Dec 22, 1:25 PM CST | TORNADO 0 | 1 Ese Talladega Nationa, AL | AN EF0 TORNADO WITH WINDS OF 70-80 MPH BRIEFLY TOUCHED DOWN BETWEEN LAWLEY AND RANDOLPH IN SE BIBB COUNTY. DAMAGE BEGAN ALONG HWY 82 WITH LARGE LIMBS BROKEN FOR 50 YARDS IN WIDTH. THE TORNADO THEN LIFTED JUST EAST OF CR 36. HERE DAMAGE WAS 150 YARDS WIDE WITH |
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 |
|---|---|---|---|
| Dec 22, 10:00 AM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 7.0 hours before the alert went out and 51 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 699 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
092
WFUS54 KBMX 221859
TORBMX
ALC007-021-105-117-221945-
/O.NEW.KBMX.TO.W.0172.111222T1859Z-111222T1945Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1259 PM CST THU DEC 22 2011
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN BIBB COUNTY IN ALABAMA...
NORTHERN CHILTON COUNTY IN ALABAMA...
NORTHERN PERRY COUNTY IN ALABAMA...
SOUTH CENTRAL SHELBY COUNTY IN ALABAMA...
* UNTIL 145 PM CST
* AT 1259 PM CST...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM
WAS LOCATED NEAR MARION...AND MOVING NORTHEAST AT 55 MPH.
* LOCATIONS IMPACTED INCLUDE...
JEMISON...MONTEVALLO...CALERA...TALLADEGA NATIONAL FOREST...
LAWLEY...CHILTON COUNTY MOTOR SPORTS PARK...ASHBY...BRIERFIELD
IRONWORKS PARK...THORSBY AND WILTON.
THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 219 THROUGH 234...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING.
&&
TO REPORT SEVERE WEATHER...
CALL 1-800-856-0758.
LAT...LON 3267 8741 3324 8672 3300 8652 3271 8701
3272 8702 3270 8703 3255 8729
TIME...MOT...LOC 1859Z 229DEG 49KT 3267 8728
$$
273 follow-up statements
138 WWUS54 KBMX 221909 SVSBMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 109 PM CST THU DEC 22 2011 ALC007-021-105-117-221945- /O.CON.KBMX.TO.W.0172.000000T0000Z-111222T1945Z/ BIBB AL-CHILTON AL-PERRY AL-SHELBY AL- 109 PM CST THU DEC 22 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL SHELBY... NORTHEASTERN PERRY...NORTHERN CHILTON AND SOUTHEASTERN BIBB COUNTIES UNTIL 145 PM CST... AT 109 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 9 MILES NORTHEAST OF MARION...MOVING NORTHEAST AT 55 MPH. LOCATIONS IMPACTED INCLUDE... JEMISON...MONTEVALLO...CALERA...TALLADEGA NATIONAL FOREST... LAWLEY...CHILTON COUNTY MOTOR SPORTS PARK...ASHBY...BRIERFIELD IRONWORKS PARK...THORSBY AND WILTON. THIS INCLUDES... INTERSTATE 65 EXIT NUMBERS 219 THROUGH 234... TO REPORT SEVERE WEATHER...CALL 1-800-856-0758. LAT...LON 3324 8672 3300 8652 3261 8719 3274 8733 TIME...MOT...LOC 1909Z 229DEG 49KT 3276 8716 $$ 27
663 WWUS54 KBMX 221920 SVSBMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 120 PM CST THU DEC 22 2011 ALC007-021-105-117-221945- /O.CON.KBMX.TO.W.0172.000000T0000Z-111222T1945Z/ BIBB AL-CHILTON AL-PERRY AL-SHELBY AL- 120 PM CST THU DEC 22 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL SHELBY... NORTHEASTERN PERRY...NORTHWESTERN CHILTON AND SOUTHEASTERN BIBB COUNTIES UNTIL 145 PM CST... AT 118 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR TALLADEGA NATIONAL FOREST...OR 10 MILES SOUTHEAST OF BRENT...MOVING NORTHEAST AT 55 MPH. LOCATIONS IMPACTED INCLUDE... JEMISON...MONTEVALLO...CALERA...TALLADEGA NATIONAL FOREST... LAWLEY...CHILTON COUNTY MOTOR SPORTS PARK...ASHBY...BRIERFIELD IRONWORKS PARK...THORSBY AND WILTON. THIS INCLUDES... INTERSTATE 65 EXIT NUMBERS 219 THROUGH 234... TO REPORT SEVERE WEATHER...CALL 1-800-856-0758. LAT...LON 3272 8701 3285 8714 3324 8672 3300 8652 TIME...MOT...LOC 1920Z 229DEG 49KT 3286 8702 $$ 27
300 WWUS54 KBMX 221930 SVSBMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 130 PM CST THU DEC 22 2011 ALC007-021-105-117-221940- /O.CAN.KBMX.TO.W.0172.000000T0000Z-111222T1945Z/ BIBB AL-CHILTON AL-PERRY AL-SHELBY AL- 130 PM CST THU DEC 22 2011 ...THE TORNADO WARNING FOR SOUTH CENTRAL SHELBY...NORTHEASTERN PERRY...NORTHERN CHILTON AND SOUTHEASTERN BIBB COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. TO REPORT SEVERE WEATHER...CALL 1-800-856-0758. LAT...LON 3272 8701 3285 8714 3324 8672 3300 8652 TIME...MOT...LOC 1930Z 229DEG 49KT 3295 8689 $$ 27
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 22, 8:49 AM CST | Flash Flood Watch | BMX | Fayette, Lamar, Marion, Pickens, Walker, Winston | 7 hr |
| Dec 22, 9:52 AM CST | Special Weather Statement | BMX | Fayette | 23 min |
| Dec 22, 10:13 AM CST | Flash Flood Warning | BMX | Lamar | 3 hr |
| Dec 22, 11:47 AM CST | Tornado Warning | BMX | Greene, Hale, Tuscaloosa | 25 min |
| Dec 22, 11:51 AM CST | Tornado Warning | BMX | Greene, Hale, Marengo, Perry | 15 min |
| Dec 22, 12:53 PM CST | Tornado Warning | BMX | Bibb, Chilton, Shelby | 52 min |
| Dec 22, 1:08 PM CST | River Flood Warning | BMX | Greene, Hale, Marengo, Pickens, Sumter | 19 hr |
| Dec 22, 1:42 PM CST | Severe Thunderstorm Warning | BMX | Shelby, Talladega | 33 min |
| Dec 22, 1:54 PM CST | Tornado Warning | BMX | St. Clair, Shelby, Talladega | 39 min |
| Dec 22, 1:59 PM CST | Tornado Warning | BMX | Autauga, Coosa, Elmore, Tallapoosa | 46 min |
| Dec 22, 2:39 PM CST | Tornado Warning | BMX | Clay, Coosa, Tallapoosa | 15 min |
| Dec 22, 3:09 PM CST | Areal Flood Advisory | BMX | Etowah | 111 min |
| Dec 22, 3:34 PM CST | Special Weather Statement | BMX | Pike | 41 min |
Nearby
Tornado Warnings in Alabama, 2011Every tornado warning in 2011Tornadoes in 2011
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.