Alert archive / Alabama / Tornado Warnings in 2021
Tornado Warning 75, NWS Birmingham, AL
NWS Birmingham, AL issued this tornado warning at May 4, 2021, 5:30 PM CDT for Chilton County, Perry County, Alabama. It was in force for 30 min. 3 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
- May 4, 2021, 5:30 PM CDT (22:30 UTC)
- Expired
- May 4, 2021, 6:00 PM CDT
- In force
- 30 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Chilton County, AL, Perry County, AL
The radar
The Birmingham radar (KBMX), 46 km from the middle of the area, began a volume at 22:29 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 |
|---|---|---|---|
| May 4, 5:35 PM CDT | TSTM WND DMG | 1 Wsw Maplesville, AL | TREES BLOWN DOWN AT VARIOUS LOCATIONS IN SOUTHWEST CHILTON COUNTY. |
| May 4, 5:38 PM CDT | TORNADO | 1 S Maplesville, AL | MULTIPLE TREES AND POWER LINES DOWNED. ASSOCIATED WITH TDS ON RADAR. LIKELY TORNADO. |
| May 4, 5:50 PM CDT | TSTM WND DMG | Lomax, AL | TREES BLOWN DOWN AT VARIOUS LOCATIONS ACROSS CHILTON COUNTY. |
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 |
|---|---|---|---|
| May 4, 3:31 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 10.5 hours before the alert went out and 47 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
- 2158 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 569 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 195 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 7.3
The text
As transmitted.
460
WFUS54 KBMX 042230
TORBMX
ALC021-105-042300-
/O.NEW.KBMX.TO.W.0075.210504T2230Z-210504T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
530 PM CDT Tue May 4 2021
The National Weather Service in Birmingham has issued a
* Tornado Warning for...
Southern Chilton County in central Alabama...
Eastern Perry County in central Alabama...
* Until 600 PM CDT.
* At 530 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles northwest of Parnell, or 15 miles southeast of
Brent, moving east at 65 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
Clanton, Thorsby, Maplesville, Chilton County Motor Sports Park,
Gap Of The Mountain, Pooles Crossroads, Lomax, Oakmulgee, Stanton,
Isabella, I 65 Rest Area and Cooper.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3270 8709 3278 8709 3284 8694 3284 8688
3286 8688 3297 8661 3273 8651 3270 8702
3273 8702 3270 8703
TIME...MOT...LOC 2230Z 264DEG 55KT 3275 8702
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
17/KLAWS4 follow-up statements
445
WWUS54 KBMX 042232
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
532 PM CDT Tue May 4 2021
ALC021-105-042300-
/O.CON.KBMX.TO.W.0075.000000T0000Z-210504T2300Z/
Chilton AL-Perry AL-
532 PM CDT Tue May 4 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR SOUTHERN
CHILTON AND EASTERN PERRY COUNTIES...
At 532 PM CDT, a confirmed tornado was located near Parnell, or 15
miles southeast of Brent, moving east at 65 mph.
HAZARD...Damaging tornado.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Clanton, Thorsby, Maplesville, Chilton County Motor Sports Park, Gap
Of The Mountain, Pooles Crossroads, Lomax, Oakmulgee, Stanton,
Isabella, I 65 Rest Area and Cooper.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 3270 8709 3278 8709 3284 8694 3284 8688
3286 8688 3297 8661 3273 8651 3270 8702
3273 8702 3270 8703
TIME...MOT...LOC 2232Z 264DEG 55KT 3275 8700
TORNADO...OBSERVED
HAIL...<.75IN
$$
17/KLAWS788
WWUS54 KBMX 042236
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
536 PM CDT Tue May 4 2021
ALC105-042246-
/O.CAN.KBMX.TO.W.0075.000000T0000Z-210504T2300Z/
Perry AL-
536 PM CDT Tue May 4 2021
...THE TORNADO WARNING FOR EASTERN PERRY COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has !moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for central
Alabama.
LAT...LON 3272 8699 3282 8699 3284 8694 3284 8688
3286 8688 3297 8661 3273 8651
TIME...MOT...LOC 2236Z 264DEG 55KT 3276 8692
$$
ALC021-042300-
/O.CON.KBMX.TO.W.0075.000000T0000Z-210504T2300Z/
Chilton AL-
536 PM CDT Tue May 4 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR SOUTHERN
CHILTON COUNTY...
At 536 PM CDT, a confirmed tornado was located near Maplesville, or
16 miles north of Valley Grande, moving east at 65 mph.
HAZARD...Damaging tornado.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Clanton, Thorsby, Maplesville, Chilton County Motor Sports Park, Gap
Of The Mountain, Pooles Crossroads, Lomax, Stanton, Isabella, I 65
Rest Area and Cooper.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 3272 8699 3282 8699 3284 8694 3284 8688
3286 8688 3297 8661 3273 8651
TIME...MOT...LOC 2236Z 264DEG 55KT 3276 8692
TORNADO...OBSERVED
HAIL...<.75IN
$$
17/KLAWS399
WWUS54 KBMX 042247
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
547 PM CDT Tue May 4 2021
ALC021-042300-
/O.CON.KBMX.TO.W.0075.000000T0000Z-210504T2300Z/
Chilton AL-
547 PM CDT Tue May 4 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
SOUTHEASTERN CHILTON COUNTY...
At 547 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Pooles Crossroads, or 8 miles southwest of Clanton,
moving east at 60 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Clanton, Pooles Crossroads and Cooper.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3272 8681 3279 8684 3289 8658 3273 8651
TIME...MOT...LOC 2247Z 271DEG 52KT 3277 8675
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
17/KLAWS846
WWUS54 KBMX 042254
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
554 PM CDT Tue May 4 2021
ALC021-042300-
/O.CON.KBMX.TO.W.0075.000000T0000Z-210504T2300Z/
Chilton AL-
554 PM CDT Tue May 4 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR SOUTH
CENTRAL CHILTON COUNTY...
At 554 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Pooles Crossroads, or near Clanton, moving east at
55 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Clanton, Pooles Crossroads and Cooper.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3272 8673 3277 8673 3281 8655 3273 8651
TIME...MOT...LOC 2254Z 266DEG 49KT 3275 8662
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
17/KLAWSThe office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 7:02 PM CDT | Severe Thunderstorm Warning | BMX | Elmore, Montgomery | 43 min |
| May 3, 7:13 PM CDT | Severe Thunderstorm Warning | BMX | Bibb, Chilton, Perry | 32 min |
| May 3, 7:25 PM CDT | Flash Flood Warning | BMX | Autauga, Elmore, Macon, Montgomery | 5 hr |
| May 3, 7:29 PM CDT | Areal Flood Advisory | BMX | Chambers, Lee, Macon, Tallapoosa | 2 hr |
| May 3, 7:40 PM CDT | Severe Thunderstorm Warning | BMX | Elmore, Macon, Montgomery | 47 min |
| May 3, 7:46 PM CDT | Special Weather Statement | BMX | Chilton | 44 min |
| May 3, 8:30 PM CDT | Special Weather Statement | BMX | Lee, Macon | 45 min |
| May 3, 8:36 PM CDT | Special Weather Statement | BMX | Chilton | 39 min |
| May 3, 8:51 PM CDT | Areal Flood Advisory | BMX | Bibb, Chilton, Perry | 3 hr |
| May 3, 8:59 PM CDT | Special Weather Statement | BMX | Russell | 46 min |
| May 3, 9:31 PM CDT | Special Weather Statement | BMX | Shelby | 59 min |
| May 4, 7:27 AM CDT | Special Weather Statement | BMX | Marion | 48 min |
| May 4, 7:57 AM CDT | Special Weather Statement | BMX | Lamar, Marion | 48 min |
| May 4, 9:07 AM CDT | Severe Thunderstorm Warning | BMX | Winston | 38 min |
| May 4, 10:26 AM CDT | Severe Thunderstorm Warning | BMX | Blount | 23 min |
| May 4, 10:59 AM CDT | Special Weather Statement | BMX | Walker | 31 min |
| May 4, 11:00 AM CDT | Areal Flood Advisory | BMX | Fayette, Lamar, Walker | 3 hr |
| May 4, 11:06 AM CDT | Areal Flood Advisory | BMX | Blount, Calhoun, Cherokee, Etowah, St. Clair | 3 hr |
| May 4, 11:12 AM CDT | Tornado Warning | BMX | Fayette, Tuscaloosa | 21 min |
| May 4, 11:25 AM CDT | Severe Thunderstorm Warning | BMX | Jefferson, Walker | 50 min |
| May 4, 11:45 AM CDT | Areal Flood Advisory | BMX | Jefferson | 2 hr |
| May 4, 11:49 AM CDT | Severe Thunderstorm Warning | BMX | Blount, Jefferson, St. Clair | 26 min |
| May 4, 12:03 PM CDT | Flash Flood Warning | BMX | Blount, Etowah, St. Clair | 117 min |
| May 4, 12:10 PM CDT | Flash Flood Warning | BMX | Jefferson | 7 hr |
| May 4, 12:14 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun, St. Clair, Talladega | 46 min |
| May 4, 12:17 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson, St. Clair, Shelby | 28 min |
| May 4, 12:35 PM CDT | Flash Flood Warning | BMX | Calhoun, Etowah, St. Clair, Talladega | 3 hr |
| May 4, 12:56 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun, Cherokee, Cleburne, Talladega | 64 min |
| May 4, 1:15 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson, Shelby | 30 min |
| May 4, 1:25 PM CDT | Tornado Warning | BMX | Cleburne | 24 min |
| May 4, 1:39 PM CDT | Flash Flood Warning | BMX | Jefferson, St. Clair, Shelby | 5 hr |
| May 4, 2:07 PM CDT | Areal Flood Warning | BMX | Blount, Calhoun, Cherokee, Etowah, St. Clair | 6 hr |
| May 4, 2:54 PM CDT | Areal Flood Advisory | BMX | Clay, Cleburne, Randolph, Shelby, Talladega | 3 hr |
| May 4, 3:50 PM CDT | Severe Thunderstorm Warning | BMX | Sumter | 55 min |
| May 4, 4:01 PM CDT | Flash Flood Warning | BMX | Shelby, Talladega | 3 hr |
| May 4, 4:05 PM CDT | Flash Flood Warning | BMX | Bibb, Tuscaloosa | 3 hr |
| May 4, 4:13 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 29 min |
| May 4, 4:20 PM CDT | Severe Thunderstorm Warning | BMX | Greene | 55 min |
| May 4, 4:30 PM CDT | Severe Thunderstorm Warning | BMX | Hale, Marengo | 63 min |
| May 4, 4:45 PM CDT | Special Weather Statement | BMX | Walker, Winston | 30 min |
| May 4, 5:00 PM CDT | Severe Thunderstorm Warning | BMX | Bibb, Chilton, Dallas, Perry | 75 min |
| May 4, 5:17 PM CDT | Flash Flood Warning | BMX | Jefferson, Shelby | 3 hr |
| May 4, 5:29 PM CDT | Severe Thunderstorm Warning | BMX | Autauga, Chilton, Lowndes | 76 min |
| May 4, 5:38 PM CDT | Tornado Warning | BMX | Shelby | 12 min |
| May 4, 5:54 PM CDT | Severe Thunderstorm Warning | BMX | Coosa | 50 min |
| May 4, 5:59 PM CDT | Severe Thunderstorm Warning | BMX | Elmore | 61 min |
| May 4, 6:07 PM CDT | Severe Thunderstorm Warning | BMX | Montgomery | 68 min |
| May 4, 6:19 PM CDT | Severe Thunderstorm Warning | BMX | Tallapoosa | 56 min |
| May 4, 6:24 PM CDT | Tornado Warning | BMX | Elmore, Montgomery | 13 min |
| May 4, 6:37 PM CDT | Severe Thunderstorm Warning | BMX | Bullock, Macon, Pike | 83 min |
| May 4, 6:41 PM CDT | Severe Thunderstorm Warning | BMX | Chambers, Lee | 61 min |
| May 4, 6:48 PM CDT | River Flood Warning | BMX | Bibb, Jefferson, Shelby | 22 hr |
Nearby
Tornado Warnings in Alabama, 2021Every tornado warning in 2021Tornadoes in 2021
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.