Alert archive / Alabama / Tornado Warnings in 2021

Tornado Warning 19, NWS Birmingham, AL

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

NWS Birmingham, AL issued this tornado warning at Mar 17, 2021, 2:54 PM CDT for Dallas County, Marengo County, Perry County, Alabama. It was in force for 66 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, 2:54 PM CDT (19:54 UTC)
Expired: Mar 17, 2021, 4:00 PM CDT
In force: 66 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), 110 km from the middle of the area, began a volume at 19:56 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, 7.9 hours before the alert went out and 110 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.

031 
WFUS54 KBMX 171954
TORBMX
ALC047-091-105-172100-
/O.NEW.KBMX.TO.W.0019.210317T1954Z-210317T2100Z/

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

The National Weather Service in Birmingham has issued a

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

* Until 400 PM CDT.
    
* At 254 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over 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, Faunsdale, Dayton, Bogue Chitto,
  Vaiden, Consul, Central Mills, Marion Junction, Perry County
  Correctional Center, Judson College, Radford, Carleys, Suttle,
  Sprott 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 3248 8771 3248 8752 3257 8752 3272 8721
      3247 8705 3227 8744 3226 8747 3227 8751
      3225 8752 3222 8753 3219 8759
TIME...MOT...LOC 1954Z 243DEG 28KT 3241 8754 

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

$$

32/Davis

3 follow-up statements

153 
WWUS54 KBMX 172017
SVSBMX

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

ALC047-091-105-172100-
/O.CON.KBMX.TO.W.0019.000000T0000Z-210317T2100Z/
Marengo AL-Perry AL-Dallas AL-
317 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR EAST
CENTRAL MARENGO...CENTRAL PERRY AND WEST CENTRAL DALLAS COUNTIES...
    
At 317 PM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from near Vaiden to Central
Mills, 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, Thomaston, Bogue Chitto, Vaiden, Consul, Central
Mills, Marion Junction, Perry County Correctional Center, Judson
College, Radford, Carleys, Suttle, Sprott 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 3232 8764 3246 8750 3259 8748 3272 8721
      3247 8705 3227 8744 3226 8747 3227 8751
      3225 8752 3222 8753 3219 8759
TIME...MOT...LOC 2017Z 235DEG 27KT 3255 8740 3229 8744 

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

$$

32/Davis

105 
WWUS54 KBMX 172032 RRA
SVSBMX

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

ALC091-172042-
/O.CAN.KBMX.TO.W.0019.000000T0000Z-210317T2100Z/
Marengo AL-
332 PM CDT Wed Mar 17 2021

...THE TORNADO WARNING FOR EAST CENTRAL MARENGO COUNTY IS
CANCELLED...

The storms which prompted the warning have 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
and central Alabama.

LAT...LON 3237 8741 3256 8732 3272 8721 3247 8705
      3232 8735
TIME...MOT...LOC 2032Z 239DEG 29KT 3261 8723 3235 8732 

$$

ALC047-105-172100-
/O.CON.KBMX.TO.W.0019.000000T0000Z-210317T2100Z/
Perry AL-Dallas AL-
332 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR CENTRAL
PERRY AND WEST CENTRAL DALLAS COUNTIES...
    
At 332 PM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from near Marion to Bogue Chitto,
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, Sprott, Suttle and Radford. 

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 3237 8741 3256 8732 3272 8721 3247 8705
      3232 8735
TIME...MOT...LOC 2032Z 239DEG 29KT 3261 8723 3235 8732 

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

$$

32/Davis

113 
WWUS54 KBMX 172045
SVSBMX

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

ALC047-105-172100-
/O.CON.KBMX.TO.W.0019.000000T0000Z-210317T2100Z/
Perry AL-Dallas AL-
345 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR EAST
CENTRAL PERRY AND CENTRAL DALLAS COUNTIES...
    
At 345 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Potter Station, or 8 miles west of Selma, 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...
Suttle and Radford. 

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 3237 8727 3257 8726 3269 8719 3247 8705
      3237 8726
TIME...MOT...LOC 2045Z 246DEG 29KT 3242 8717 

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

$$

32/Davis

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, 2:58 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, 5:23 PM CDT	Tornado Warning	BMX	Dallas, Marengo, Perry	67 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.