Alert archive / Alabama / Tornado Warnings in 2011
Tornado Warning 64, NWS Birmingham, AL
NWS Birmingham, AL issued this tornado warning at Apr 15, 2011, 4:28 PM CDT for Bibb County, Jefferson County, Shelby County, Alabama. It was in force for 62 min. 16 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
- Apr 15, 2011, 4:28 PM CDT (21:28 UTC)
- Expired
- Apr 15, 2011, 5:30 PM CDT
- In force
- 62 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
Counties Bibb County, AL, Jefferson County, AL, Shelby County, AL
The radar
The Birmingham radar (KBMX), 39 km from the middle of the area, began a volume at 21:28 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 15, 4:50 PM CDT | HAIL 1 | Helena, AL | QUARTER SIZE HAIL IN ROCKY RIDGE AT JCT HWYS 17 AND 58. |
| Apr 15, 4:58 PM CDT | TSTM WND DMG | Hoover, AL | LARGE MAGNOLIA TREE DOWN ALONG AL HWY 150 NEAR THE HOOVER MET. |
| Apr 15, 4:59 PM CDT | TORNADO 0 | Alabaster, AL | AN EF-0 TORNADO TOUCHED DOWN IN ALABASTER NEAR EVANGEL CHURCH ON THOMPSON RD LIFTING A FEW MINUTES LATER NEAR CITY HALL ON HWY 31. SEVERAL TREES WERE KNOCKED DOWN...SOME ON HOMES. THE PATH LENGTH WAS 1.36 MILES LONG WITH A MAX WIDTH OF 50 YDS. MAX ESTIMATED WI |
| Apr 15, 5:00 PM CDT | TSTM WND DMG | Alabaster, AL | TREES DOWN ON A COUPLE OF HOMES ALONG HWY 31 NEAR THE FIRE STATION. |
| Apr 15, 5:00 PM CDT | TORNADO | Alabaster, AL | TREES DOWN ON A COUPLE OF HOMES ALONG NEAR 8TH STREET SW NEAR THE FIRE STATION. LAW ENFORCEMENT WITNESSED THE TORNADO. |
| Apr 15, 5:06 PM CDT | FUNNEL CLOUD | Pelham, AL | HAM ALERT TEAM MEMBER REPORTS A FUNNEL OVER HY 11 IN PELHAM. |
| Apr 15, 5:10 PM CDT | HAIL 1 | Alabaster, AL | QUARTER SIZE HAIL AT CITY HALL IN DOWNTOWN ALABASTER, |
| Apr 15, 5:10 PM CDT | HAIL 1 | Alabaster, AL | QUARTER SIZE HAIL IN ALABASTER. |
| Apr 15, 5:11 PM CDT | HAIL 0.5 | Hoover, AL | |
| Apr 15, 5:17 PM CDT | HAIL 1 | Pelham, AL | |
| Apr 15, 5:20 PM CDT | HAIL 1 | Pelham, AL | QUARTER SIZE HAIL OFF CR 52 IN DEERING DOWNS SUBDIVISION. |
| Apr 15, 5:20 PM CDT | HAIL 1 | Pelham, AL | QUARTER SIZE HIAL OFF CR 52 IN DEERING DOWNS SUBDIVISION. |
| Apr 15, 5:25 PM CDT | HAIL 1 | 1 S Shelby County Airpo, AL | NICKLE TO QUARTER SIZE HAIL REPORTED IN THE SCOTTSVILLE SUBDIVISION. |
| Apr 15, 5:25 PM CDT | HAIL 1 | 2 S Alabaster, AL | NICKLE TO QUARTER SIZE HAIL REPORTED IN THE SCOTTSDALE SUBDIVISION. |
| Apr 15, 5:27 PM CDT | TSTM WND DMG | Chelsea, AL | DAMAGE TO SIDING ON FIRE STATION BUILDING. |
| Apr 15, 5:30 PM CDT | HAIL 1 | Chelsea, AL |
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 15, 11:21 AM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 9.5 hours before the alert went out and 38 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1553 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 282 m²/s²
- 0-3 km storm-relative helicity
- 365 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
677
WFUS54 KBMX 152128
TORBMX
ALC007-073-117-152230-
/O.NEW.KBMX.TO.W.0064.110415T2128Z-110415T2230Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
428 PM CDT FRI APR 15 2011
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN BIBB COUNTY IN CENTRAL ALABAMA...
SOUTHEASTERN JEFFERSON COUNTY IN CENTRAL ALABAMA...
SHELBY COUNTY IN CENTRAL ALABAMA...
* UNTIL 530 PM CDT
* AT 424 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A
CONFIRMED TORNADO 5 MILES SOUTH OF WEST BLOCTON...OR 7 MILES NORTH
OF CENTREVILLE. DOPPLER RADAR SHOWED THIS TORNADO MOVING NORTHEAST
AT 45 MPH.
AT 425 PM CDT...TREES WERE REPORTED DOWN IN EOLINE.
* LOCATIONS IMPACTED INCLUDE...
MONTEVALLO...ALABASTER...HELENA...PELHAM...HOOVER...VESTAVIA
HILLS...HOMEWOOD...CHELSEA...MOUNTAIN BROOK AND IRONDALE.
THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 234 THROUGH 256...
INTERSTATE 459 EXIT NUMBERS 6 THROUGH 33...
INTERSTATE 20 EXIT NUMBERS 132 THROUGH 140...
INTERSTATE 59 EXIT NUMBERS 130 THROUGH 143...
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 3363 8654 3362 8655 3356 8655 3355 8649
3351 8649 3351 8638 3340 8638 3338 8636
3304 8693 3323 8709 3369 8661
TIME...MOT...LOC 2128Z 230DEG 38KT 3310 8711
$$
03/082 follow-up statements
250
WWUS54 KBMX 152159
SVSBMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
459 PM CDT FRI APR 15 2011
ALC007-152208-
/O.CAN.KBMX.TO.W.0064.000000T0000Z-110415T2230Z/
BIBB AL-
459 PM CDT FRI APR 15 2011
...THE TORNADO WARNING FOR NORTHEASTERN BIBB COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA. HOWEVER...A TORNADO WARNING FOR A DIFFERENT CIRCULATION
REMAINS IN EFFECT FOR NORTHERN BIBB COUNTY.
TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.
LAT...LON 3369 8661 3363 8654 3362 8655 3356 8655
3355 8649 3351 8649 3351 8638 3340 8638
3338 8636 3312 8683 3325 8696
TIME...MOT...LOC 2158Z 230DEG 44KT 3325 8681
$$
ALC073-117-152230-
/O.CON.KBMX.TO.W.0064.000000T0000Z-110415T2230Z/
SHELBY AL-JEFFERSON AL-
459 PM CDT FRI APR 15 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN JEFFERSON AND
SHELBY COUNTIES UNTIL 530 PM CDT...
AT 455 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR ALABASTER...MOVING NORTHEAST AT 50 MPH.
LOCATIONS IMPACTED INCLUDE...
PELHAM...HOOVER...VESTAVIA HILLS...CHELSEA...MOUNTAIN BROOK...
IRONDALE...LEEDS...TRUSSVILLE...REGIONS PARK OR HOOVER MET AND
RIVERCHASE.
THIS INCLUDES...
INTERSTATE 65 EXIT NUMBERS 234 THROUGH 252...
INTERSTATE 459 EXIT NUMBERS 10 THROUGH 33...
INTERSTATE 20 EXIT NUMBERS 132 THROUGH 140...
INTERSTATE 59 EXIT NUMBERS 137 THROUGH 143...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.
LAT...LON 3369 8661 3363 8654 3362 8655 3356 8655
3355 8649 3351 8649 3351 8638 3340 8638
3338 8636 3312 8683 3325 8696
TIME...MOT...LOC 2158Z 230DEG 44KT 3325 8681
$$
03/08186
WWUS54 KBMX 152222
SVSBMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
522 PM CDT FRI APR 15 2011
ALC073-117-152230-
/O.CON.KBMX.TO.W.0064.000000T0000Z-110415T2230Z/
SHELBY AL-JEFFERSON AL-
522 PM CDT FRI APR 15 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN JEFFERSON AND
SHELBY COUNTIES UNTIL 530 PM CDT...
AT 518 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR MAYLENE...OR NEAR ALABASTER...MOVING NORTHEAST
AT 30 MPH.
LOCATIONS IMPACTED INCLUDE...
HELENA...PELHAM...HOOVER...CHELSEA...VESTAVIA HILLS...MOUNTAIN
BROOK...IRONDALE...LEEDS...TRUSSVILLE AND REGIONS PARK OR HOOVER
MET.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.
LAT...LON 3369 8661 3363 8654 3362 8655 3356 8655
3355 8649 3351 8649 3351 8638 3340 8638
3338 8636 3312 8683 3325 8696
TIME...MOT...LOC 2223Z 225DEG 27KT 3324 8681
$$
03/08The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 3:29 AM CDT | Wind Advisory | BMX | Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more | 22 hr |
| Apr 15, 8:49 AM CDT | Special Weather Statement | BMX | Marion | 41 min |
| Apr 15, 8:55 AM CDT | Special Weather Statement | BMX | Lamar | 50 min |
| Apr 15, 9:49 AM CDT | Areal Flood Advisory | BMX | Lamar | 116 min |
| Apr 15, 9:53 AM CDT | Special Weather Statement | BMX | Fayette, Marion | 37 min |
| Apr 15, 10:11 AM CDT | Flash Flood Warning | BMX | Lamar | 6 hr |
| Apr 15, 10:37 AM CDT | Special Weather Statement | BMX | Pickens | 38 min |
| Apr 15, 10:51 AM CDT | Special Weather Statement | BMX | St. Clair | 39 min |
| Apr 15, 10:59 AM CDT | Severe Thunderstorm Warning | BMX | Blount, Jefferson, St. Clair | 46 min |
| Apr 15, 11:12 AM CDT | Areal Flood Advisory | BMX | Fayette, Walker, Winston | 2 hr |
| Apr 15, 11:52 AM CDT | Tornado Warning | BMX | Marengo | 38 min |
| Apr 15, 12:15 PM CDT | Severe Thunderstorm Warning | BMX | Lamar, Pickens | 34 min |
| Apr 15, 12:24 PM CDT | Tornado Warning | BMX | Marengo | 51 min |
| Apr 15, 12:36 PM CDT | Severe Thunderstorm Warning | BMX | Blount, Jefferson, St. Clair | 27 min |
| Apr 15, 12:59 PM CDT | Tornado Warning | BMX | Dallas, Marengo, Perry | 46 min |
| Apr 15, 1:10 PM CDT | Flash Flood Warning | BMX | Fayette, Lamar, Marion, Walker, Winston | 3 hr |
| Apr 15, 1:22 PM CDT | Areal Flood Advisory | BMX | Blount | 3 hr |
| Apr 15, 1:25 PM CDT | Tornado Warning | BMX | Greene, Sumter | 65 min |
| Apr 15, 1:43 PM CDT | Tornado Warning | BMX | Perry | 28 min |
| Apr 15, 2:14 PM CDT | River Flood Warning | BMX | Greene, Hale, Marengo, Pickens, Sumter | 4 days |
| Apr 15, 2:14 PM CDT | River Flood Warning | BMX | Greene, Hale, Marengo, Sumter | 20 hr |
| Apr 15, 2:14 PM CDT | River Flood Warning | BMX | Greene, Hale, Marengo, Sumter | 20 hr |
| Apr 15, 2:17 PM CDT | River Flood Warning | BMX | Greene, Hale, Marengo | 4 days |
| Apr 15, 2:24 PM CDT | Tornado Warning | BMX | Greene, Hale, Tuscaloosa | 51 min |
| Apr 15, 2:31 PM CDT | Tornado Warning | BMX | Marengo, Sumter | 29 min |
| Apr 15, 2:39 PM CDT | Flash Flood Warning | BMX | Greene, Pickens, Sumter | 3 hr |
| Apr 15, 2:41 PM CDT | Tornado Warning | BMX | Greene, Tuscaloosa | 64 min |
| Apr 15, 2:49 PM CDT | Tornado Warning | BMX | Greene, Hale, Sumter | 41 min |
| Apr 15, 2:56 PM CDT | Tornado Warning | BMX | Greene, Hale, Marengo, Perry, Sumter | 49 min |
| Apr 15, 3:10 PM CDT | Tornado Warning | BMX | Greene, Hale, Tuscaloosa | 50 min |
| Apr 15, 3:25 PM CDT | Flash Flood Warning | BMX | Tuscaloosa | 3 hr |
| Apr 15, 3:27 PM CDT | Tornado Warning | BMX | Greene, Hale, Tuscaloosa | 48 min |
| Apr 15, 3:32 PM CDT | Tornado Warning | BMX | Sumter | 58 min |
| Apr 15, 3:34 PM CDT | Tornado Warning | BMX | Lowndes, Montgomery | 56 min |
| Apr 15, 3:39 PM CDT | Tornado Warning | BMX | Bibb, Hale, Perry, Tuscaloosa | 66 min |
| Apr 15, 3:44 PM CDT | Tornado Warning | BMX | Jefferson, Tuscaloosa | 37 min |
| Apr 15, 3:57 PM CDT | Areal Flood Warning | BMX | Lamar | 24 hr |
| Apr 15, 4:18 PM CDT | Tornado Warning | BMX | Greene, Hale, Sumter | 57 min |
| Apr 15, 4:21 PM CDT | Tornado Warning | BMX | Lamar | 39 min |
| Apr 15, 4:33 PM CDT | Severe Thunderstorm Warning | BMX | Bibb, Jefferson, Shelby, Tuscaloosa | 42 min |
| Apr 15, 4:41 PM CDT | Tornado Warning | BMX | Marengo, Sumter | 64 min |
| Apr 15, 4:42 PM CDT | Tornado Warning | BMX | Bibb, Tuscaloosa | 33 min |
| Apr 15, 4:45 PM CDT | Tornado Warning | BMX | Fayette, Lamar, Marion | 26 min |
| Apr 15, 5:08 PM CDT | Severe Thunderstorm Warning | BMX | Lamar | 52 min |
| Apr 15, 5:09 PM CDT | Flash Flood Warning | BMX | Jefferson, Shelby | 3 hr |
| Apr 15, 5:13 PM CDT | Tornado Warning | BMX | Bibb, Hale, Perry | 35 min |
| Apr 15, 5:18 PM CDT | Tornado Warning | BMX | Lamar | 30 min |
| Apr 15, 5:26 PM CDT | Tornado Warning | BMX | St. Clair, Shelby, Talladega | 49 min |
| Apr 15, 5:30 PM CDT | Tornado Warning | BMX | Hale, Marengo, Perry, Sumter | 60 min |
| Apr 15, 5:38 PM CDT | Severe Thunderstorm Warning | BMX | Lamar | 22 min |
| Apr 15, 5:45 PM CDT | Severe Thunderstorm Warning | BMX | Chambers, Lee, Macon | 45 min |
| Apr 15, 5:47 PM CDT | Severe Thunderstorm Warning | BMX | Fayette, Lamar, Marion | 45 min |
| Apr 15, 5:55 PM CDT | Tornado Warning | BMX | Lowndes, Montgomery | 46 min |
| Apr 15, 6:08 PM CDT | Tornado Warning | BMX | Calhoun, Clay, Cleburne, Talladega | 52 min |
| Apr 15, 6:11 PM CDT | Tornado Warning | BMX | Dallas, Perry | 64 min |
| Apr 15, 6:12 PM CDT | Tornado Warning | BMX | Lee | 21 min |
| Apr 15, 6:15 PM CDT | Tornado Warning | BMX | Dallas, Lowndes | 60 min |
| Apr 15, 6:17 PM CDT | Severe Thunderstorm Warning | BMX | Fayette, Walker | 43 min |
| Apr 15, 6:19 PM CDT | Tornado Warning | BMX | Marengo | 56 min |
| Apr 15, 6:43 PM CDT | Areal Flood Advisory | BMX | Talladega | 3 hr |
| Apr 15, 6:53 PM CDT | Tornado Warning | BMX | Calhoun, Clay, Cleburne, Talladega | 31 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.