Alert archive / Alabama / Tornado Warnings in 2021

Tornado Warning 34, NWS Birmingham, AL

March 17, 2021Dallas County, Marengo County, Perry County, Alabama

NWS Birmingham, AL issued this tornado warning at Mar 17, 2021, 5:23 PM CDT for Dallas County, Marengo County, Perry County, Alabama. It was in force for 67 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: Mar 17, 2021, 5:23 PM CDT (22:23 UTC)
Expired: Mar 17, 2021, 6:30 PM CDT
In force: 67 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Dallas County, AL, Marengo County, AL, Perry County, AL

The radar

The Birmingham radar (KBMX), 118 km from the middle of the area, began a volume at 22:22 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 17, 11:36 AM CDT	Tornado Watch PDS	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 10.4 hours before the alert went out and 118 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 658 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 759 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 301 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

As transmitted.

023 
WFUS54 KBMX 172223
TORBMX
ALC047-091-105-172330-
/O.NEW.KBMX.TO.W.0034.210317T2223Z-210317T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
523 PM CDT Wed Mar 17 2021

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
  East central Marengo County in southwestern Alabama...
  Southern Perry County in central Alabama...
  West central Dallas County in south central Alabama...

* Until 630 PM CDT.
    
* At 522 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Thomaston, or 10 miles southeast of Linden, moving
  northeast at 35 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...
  Marion, Uniontown, Thomaston, Dayton, Freddie Jones Field, Bogue
  Chitto, Vaiden, Consul, Central Mills, Marion Junction, Perry
  County Correctional Center, Judson College, Radford, Suttle and
  Vaiden Field Airport.

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 3224 8778 3268 8731 3248 8705 3226 8744
      3227 8745 3227 8751 3225 8752 3222 8752
      3214 8766
TIME...MOT...LOC 2222Z 229DEG 30KT 3223 8765 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

87/GRANTHAM

4 follow-up statements

465 
WWUS54 KBMX 172235
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
535 PM CDT Wed Mar 17 2021

ALC047-091-105-172330-
/O.CON.KBMX.TO.W.0034.000000T0000Z-210317T2330Z/
Marengo AL-Perry AL-Dallas AL-
535 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR EAST
CENTRAL MARENGO...SOUTHERN PERRY AND WEST CENTRAL DALLAS COUNTIES...
    
At 535 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Consul, or 10 miles south of Uniontown, moving
northeast at 35 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...
Marion, Uniontown, Thomaston, Dayton, Bogue Chitto, Vaiden, Consul,
Central Mills, Marion Junction, Perry County Correctional Center,
Judson College, Radford, Suttle and Vaiden Field Airport.

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 3220 8756 3232 8768 3268 8731 3249 8706
      3240 8720 3226 8744 3227 8745 3227 8751
      3225 8752 3222 8752
TIME...MOT...LOC 2235Z 229DEG 30KT 3231 8755 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

87/GRANTHAM

897 
WWUS54 KBMX 172253
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
553 PM CDT Wed Mar 17 2021

ALC091-172303-
/O.CAN.KBMX.TO.W.0034.000000T0000Z-210317T2330Z/
Marengo AL-
553 PM CDT Wed Mar 17 2021

...THE TORNADO WARNING FOR EAST CENTRAL MARENGO 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 700 PM CDT for south central,
central and southwestern Alabama.

LAT...LON 3227 8747 3231 8747 3231 8752 3232 8753
      3242 8752 3265 8728 3253 8711 3248 8707
      3226 8743
TIME...MOT...LOC 2253Z 235DEG 24KT 3234 8745 

$$

ALC047-105-172330-
/O.CON.KBMX.TO.W.0034.000000T0000Z-210317T2330Z/
Perry AL-Dallas AL-
553 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR SOUTHERN
PERRY AND WEST CENTRAL DALLAS COUNTIES...
    
At 553 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Central Mills, or 8 miles southeast of Uniontown,
moving northeast at 30 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...
Marion, Uniontown, Bogue Chitto, Vaiden, Marion Junction, Central
Mills, Suttle, Perry County Correctional Center, Radford and Vaiden
Field Airport.

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 3227 8747 3231 8747 3231 8752 3232 8753
      3242 8752 3265 8728 3253 8711 3248 8707
      3226 8743
TIME...MOT...LOC 2253Z 235DEG 24KT 3234 8745 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

87/GRANTHAM

231 
WWUS54 KBMX 172311
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
611 PM CDT Wed Mar 17 2021

ALC047-105-172330-
/O.CON.KBMX.TO.W.0034.000000T0000Z-210317T2330Z/
Perry AL-Dallas AL-
611 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR CENTRAL
PERRY AND WEST CENTRAL DALLAS COUNTIES...
    
At 611 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Marion Junction, or 11 miles east of Uniontown,
moving northeast at 35 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...
Marion Junction, Bogue Chitto and Suttle. 

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 3232 8734 3241 8742 3259 8719 3253 8711
      3248 8707
TIME...MOT...LOC 2311Z 232DEG 29KT 3241 8731 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

87/GRANTHAM

368 
WWUS54 KBMX 172321
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
621 PM CDT Wed Mar 17 2021

ALC047-105-172330-
/O.CON.KBMX.TO.W.0034.000000T0000Z-210317T2330Z/
Perry AL-Dallas AL-
621 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR CENTRAL
PERRY AND CENTRAL DALLAS COUNTIES...
    
At 620 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Marion Junction, or 12 miles southeast of Marion,
moving northeast at 35 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...
Marion Junction and Suttle. 

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 3238 8725 3247 8735 3259 8719 3253 8711
      3248 8707
TIME...MOT...LOC 2320Z 229DEG 30KT 3247 8723 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

87/GRANTHAM

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 16, 9:59 PM CDT	Special Weather Statement	BMX	Sumter	46 min
Mar 16, 10:11 PM CDT	Severe Thunderstorm Warning	BMX	Sumter	24 min
Mar 16, 10:38 PM CDT	Special Weather Statement	BMX	Hale	37 min
Mar 17, 1:27 AM CDT	Dense Fog Advisory	BMX	Autauga, Barbour, Blount, Bullock, Calhoun, Chambers and 22 more	6 hr
Mar 17, 11:18 AM CDT	Special Weather Statement	BMX	Jefferson	27 min
Mar 17, 12:13 PM CDT	Tornado Warning	BMX	Dallas	47 min
Mar 17, 12:19 PM CDT	Areal Flood Advisory	BMX	Jefferson, Tuscaloosa	2 hr
Mar 17, 12:21 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion	25 min
Mar 17, 12:41 PM CDT	Tornado Warning	BMX	Autauga	64 min
Mar 17, 12:59 PM CDT	Tornado Warning	BMX	Greene, Sumter	61 min
Mar 17, 1:18 PM CDT	Tornado Warning	BMX	Autauga, Chilton, Elmore	57 min
Mar 17, 1:40 PM CDT	Severe Thunderstorm Warning	BMX	Pickens, Tuscaloosa	28 min
Mar 17, 1:52 PM CDT	Tornado Warning	BMX	Greene, Hale, Marengo, Sumter	41 min
Mar 17, 1:58 PM CDT	Tornado Warning	BMX	Marengo	62 min
Mar 17, 1:59 PM CDT	Tornado Warning	BMX	Greene, Hale	46 min
Mar 17, 2:02 PM CDT	Tornado Warning Tornado observed	BMX	Chilton, Coosa	58 min
Mar 17, 2:09 PM CDT	Tornado Warning	BMX	Marengo	66 min
Mar 17, 2:14 PM CDT	Tornado Warning	BMX	Jefferson, Walker	61 min
Mar 17, 2:20 PM CDT	Tornado Warning Tornado observed	BMX	Tuscaloosa	40 min
Mar 17, 2:33 PM CDT	Tornado Warning Tornado observed	BMX	Clay, Coosa, Talladega	42 min
Mar 17, 2:44 PM CDT	Flash Flood Warning	BMX	Hale, Marengo, Perry	2 hr
Mar 17, 2:47 PM CDT	Areal Flood Advisory	BMX	Greene, Pickens, Sumter, Tuscaloosa	2 hr
Mar 17, 2:48 PM CDT	Areal Flood Advisory	BMX	Blount, Jefferson, Walker	2 hr
Mar 17, 2:48 PM CDT	Areal Flood Advisory	BMX	Fayette, Lamar, Marion, Walker, Winston	2 hr
Mar 17, 2:51 PM CDT	Flash Flood Warning	BMX	Jefferson	2 hr
Mar 17, 2:53 PM CDT	Tornado Warning Tornado observed	BMX	Tuscaloosa	52 min
Mar 17, 2:54 PM CDT	Tornado Warning	BMX	Dallas, Marengo, Perry	66 min
Mar 17, 2:58 PM CDT	Tornado Warning	BMX	Blount, Jefferson	34 min
Mar 17, 3:21 PM CDT	Tornado Warning	BMX	Tuscaloosa	54 min
Mar 17, 3:25 PM CDT	Flash Flood Warning	BMX	Tuscaloosa	2 hr
Mar 17, 3:28 PM CDT	Areal Flood Advisory	BMX	Dallas, Perry	2 hr
Mar 17, 3:34 PM CDT	Tornado Warning Tornado observed	BMX	Jefferson, Walker	56 min
Mar 17, 3:37 PM CDT	Tornado Warning	BMX	Marengo	38 min
Mar 17, 3:58 PM CDT	Tornado Warning Tornado observed	BMX	Jefferson	47 min
Mar 17, 3:58 PM CDT	Tornado Warning	BMX	Dallas, Perry	47 min
Mar 17, 4:12 PM CDT	Tornado Warning	BMX	Dallas	48 min
Mar 17, 4:28 PM CDT	Tornado Warning Tornado observed	BMX	Marengo	62 min
Mar 17, 4:36 PM CDT	Tornado Warning Tornado observed	BMX	Jefferson	54 min
Mar 17, 4:40 PM CDT	Tornado Warning	BMX	Autauga	50 min
Mar 17, 4:43 PM CDT	Tornado Warning	BMX	Dallas, Perry	47 min
Mar 17, 5:00 PM CDT	Tornado Warning	BMX	Chilton	60 min
Mar 17, 5:09 PM CDT	Areal Flood Advisory	BMX	Jefferson	111 min
Mar 17, 5:15 PM CDT	Tornado Warning	BMX	Chilton	60 min
Mar 17, 5:16 PM CDT	Tornado Warning Tornado observed	BMX	Blount	44 min
Mar 17, 5:26 PM CDT	Areal Flood Advisory	BMX	Autauga, Chilton, Dallas, Hale, Marengo, Perry and 1 more	3 hr
Mar 17, 5:41 PM CDT	Tornado Warning	BMX	Marengo	23 min
Mar 17, 5:42 PM CDT	Tornado Warning	BMX	Chilton, Coosa, Shelby, Talladega	48 min
Mar 17, 5:48 PM CDT	Tornado Warning	BMX	Blount	42 min
Mar 17, 5:56 PM CDT	Areal Flood Advisory	BMX	Walker, Winston	44 min
Mar 17, 6:09 PM CDT	Tornado Warning	BMX	Chilton, Coosa, Shelby, Talladega	13 min
Mar 17, 6:40 PM CDT	Flash Flood Warning	BMX	Walker, Winston	3 hr
Mar 17, 6:48 PM CDT	Tornado Warning	BMX	Dallas	42 min

Nearby

Tornado Warnings in Alabama, 2021 Every tornado warning in 2021 Tornadoes 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.