Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 136, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jul 31, 2021, 3:38 PM CDT for 4 counties in Alabama. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 31, 2021, 3:38 PM CDT (20:38 UTC)
- Expired
- Jul 31, 2021, 4:30 PM CDT
- In force
- 52 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Chilton County, AL, Coosa County, AL, Shelby County, AL, Talladega County, AL
The radar
The Birmingham radar (KBMX), 53 km from the middle of the area, began a volume at 20:40 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.
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 8.6 hours before the alert went out and 55 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
- 1260 J/kg
- Mixed-layer CIN
- -102 J/kg
- Mixed-layer LCL
- 1122 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -46 m²/s²
- 0-3 km storm-relative helicity
- -36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
257
WUUS54 KBMX 312038
SVRBMX
ALC021-037-117-121-312130-
/O.NEW.KBMX.SV.W.0136.210731T2038Z-210731T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
338 PM CDT Sat Jul 31 2021
The National Weather Service in Birmingham has issued a
* Severe Thunderstorm Warning for...
Southwestern Talladega County in east central Alabama...
Northeastern Chilton County in central Alabama...
Southeastern Shelby County in central Alabama...
Coosa County in east central Alabama...
* Until 430 PM CDT.
* At 338 PM CDT, severe thunderstorms were located along a line
extending from Childersburg to near Lay Lake, moving southeast at
25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Sylacauga, Childersburg, Wilsonville, Goodwater, Rockford,
Talladega Springs, Weogufka, Stewartville, Harpersville, Hanover,
Lyle, Pentonville, Dollar, Bradford, Strickland Crossroads,
Bentleyville, Marble Valley, Moriah, Hatchet and Fayetteville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3275 8628 3275 8632 3277 8632 3277 8634
3275 8634 3275 8641 3272 8642 3306 8666
3334 8641 3316 8617 3310 8617 3310 8609
3304 8601 3301 8601
TIME...MOT...LOC 2038Z 318DEG 24KT 3327 8637 3301 8655
HAIL...<.75IN
WIND...60MPH
$$
87/GRANTHAM3 follow-up statements
657
WWUS54 KBMX 312052
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
352 PM CDT Sat Jul 31 2021
ALC021-117-312102-
/O.CAN.KBMX.SV.W.0136.000000T0000Z-210731T2130Z/
Chilton AL-Shelby AL-
352 PM CDT Sat Jul 31 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHILTON AND
SOUTHEASTERN SHELBY COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3275 8628 3275 8632 3277 8632 3277 8634
3275 8634 3276 8639 3279 8642 3282 8646
3286 8645 3287 8648 3291 8649 3293 8651
3305 8652 3329 8634 3316 8617 3310 8617
3310 8609 3304 8601 3301 8601
TIME...MOT...LOC 2052Z 318DEG 28KT 3321 8630 3290 8643
$$
ALC037-121-312130-
/O.CON.KBMX.SV.W.0136.000000T0000Z-210731T2130Z/
Talladega AL-Coosa AL-
352 PM CDT Sat Jul 31 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHWESTERN TALLADEGA AND COOSA COUNTIES...
At 352 PM CDT, severe thunderstorms were located along a line
extending from near Sylacauga to Dollar, moving southeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Sylacauga, Childersburg, Goodwater, Rockford, Talladega Springs,
Weogufka, Stewartville, Hanover, Lyle, Pentonville, Dollar, Bradford,
Strickland Crossroads, Bentleyville, Marble Valley, Moriah, Hatchet,
Fayetteville, Unity and Parkdale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3275 8628 3275 8632 3277 8632 3277 8634
3275 8634 3276 8639 3279 8642 3282 8646
3286 8645 3287 8648 3291 8649 3293 8651
3305 8652 3329 8634 3316 8617 3310 8617
3310 8609 3304 8601 3301 8601
TIME...MOT...LOC 2052Z 318DEG 28KT 3321 8630 3290 8643
HAIL...<.75IN
WIND...60MPH
$$
87/GRANTHAM946
WWUS54 KBMX 312102
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
402 PM CDT Sat Jul 31 2021
ALC037-121-312130-
/O.CON.KBMX.SV.W.0136.000000T0000Z-210731T2130Z/
Talladega AL-Coosa AL-
402 PM CDT Sat Jul 31 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTH CENTRAL TALLADEGA AND COOSA COUNTIES...
At 402 PM CDT, severe thunderstorms were located along a line
extending from Sylacauga to near Lyle, moving southeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Sylacauga, Goodwater, Rockford, Weogufka, Stewartville, Hanover,
Lyle, Pentonville, Dollar, Bradford, Strickland Crossroads,
Bentleyville, Moriah, Hatchet, Unity, Parkdale, Crewsville, Mitchell
Lake, Higgins Ferry Park and Gantts Quarry.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3291 8649 3327 8632 3326 8630 3316 8617
3310 8617 3310 8609 3304 8601 3301 8601
3275 8628 3275 8632 3277 8632 3277 8634
3275 8634 3276 8639 3279 8642 3282 8646
3286 8645 3287 8648
TIME...MOT...LOC 2102Z 314DEG 27KT 3316 8625 3284 8632
HAIL...<.75IN
WIND...60MPH
$$
87/GRANTHAM918
WWUS54 KBMX 312119
SVSBMX
Severe Weather Statement
National Weather Service Birmingham AL
419 PM CDT Sat Jul 31 2021
ALC121-312129-
/O.CAN.KBMX.SV.W.0136.000000T0000Z-210731T2130Z/
Talladega AL-
419 PM CDT Sat Jul 31 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL TALLADEGA COUNTY
IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3275 8628 3275 8632 3277 8632 3277 8634
3275 8634 3275 8635 3276 8635 3310 8624
3310 8609 3304 8601 3301 8601
TIME...MOT...LOC 2119Z 318DEG 24KT 3309 8618 3277 8625
$$
ALC037-312130-
/O.CON.KBMX.SV.W.0136.000000T0000Z-210731T2130Z/
Coosa AL-
419 PM CDT Sat Jul 31 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR CENTRAL COOSA COUNTY...
At 419 PM CDT, severe thunderstorms were located along a line
extending from near Parkdale to Speed, moving southeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Goodwater, Rockford, Stewartville, Hanover, Pentonville, Parkdale,
Bradford, Hatchet, Crewsville, Bentleyville and Hissop.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3275 8628 3275 8632 3277 8632 3277 8634
3275 8634 3275 8635 3276 8635 3310 8624
3310 8609 3304 8601 3301 8601
TIME...MOT...LOC 2119Z 318DEG 24KT 3309 8618 3277 8625
HAIL...<.75IN
WIND...60MPH
$$
87/GRANTHAMThe office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 7:07 PM CDT | Special Weather Statement | BMX | Winston | 38 min |
| Jul 30, 7:45 PM CDT | Severe Thunderstorm Warning | BMX | Cherokee, Etowah | 31 min |
| Jul 30, 7:51 PM CDT | Severe Thunderstorm Warning | BMX | Blount | 39 min |
| Jul 31, 2:25 PM CDT | Special Weather Statement | BMX | Russell | 50 min |
| Jul 31, 2:26 PM CDT | Special Weather Statement | BMX | St. Clair | 49 min |
| Jul 31, 2:28 PM CDT | Special Weather Statement | BMX | Chilton | 47 min |
| Jul 31, 2:29 PM CDT | Special Weather Statement | BMX | Dallas | 46 min |
| Jul 31, 2:44 PM CDT | Special Weather Statement | BMX | Shelby | 46 min |
| Jul 31, 2:47 PM CDT | Special Weather Statement | BMX | Jefferson, Walker | 43 min |
| Jul 31, 2:56 PM CDT | Severe Thunderstorm Warning | BMX | Blount, Jefferson, Walker | 49 min |
| Jul 31, 3:04 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun, St. Clair, Talladega | 41 min |
| Jul 31, 3:09 PM CDT | Special Weather Statement | BMX | Chilton | 51 min |
| Jul 31, 3:11 PM CDT | Special Weather Statement | BMX | Russell | 34 min |
| Jul 31, 3:23 PM CDT | Special Weather Statement | BMX | Coosa | 37 min |
| Jul 31, 3:34 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson, Shelby | 41 min |
| Jul 31, 3:41 PM CDT | Special Weather Statement | BMX | Talladega | 34 min |
| Jul 31, 3:57 PM CDT | Special Weather Statement | BMX | Shelby | 33 min |
| Jul 31, 3:59 PM CDT | Special Weather Statement | BMX | Elmore, Montgomery | 46 min |
| Jul 31, 4:12 PM CDT | Special Weather Statement | BMX | Clay, Randolph | 48 min |
| Jul 31, 4:18 PM CDT | Special Weather Statement | BMX | Chambers | 42 min |
| Jul 31, 4:22 PM CDT | Special Weather Statement | BMX | Tallapoosa | 53 min |
| Jul 31, 4:45 PM CDT | Severe Thunderstorm Warning | BMX | Tallapoosa | 45 min |
| Jul 31, 4:49 PM CDT | Special Weather Statement | BMX | Bibb | 41 min |
| Jul 31, 5:00 PM CDT | Special Weather Statement | BMX | Lee | 60 min |
| Jul 31, 6:36 PM CDT | Special Weather Statement | BMX | Barbour, Russell | 39 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2021Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.