Alert archive / Alabama / Tornado Warnings in 2021

Tornado Warning 3, NWS Birmingham, AL

January 25, 2021Jefferson County, Alabama

NWS Birmingham, AL issued this tornado warning at Jan 25, 2021, 10:52 PM CST for Jefferson County, Alabama. It was in force for 23 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: Jan 25, 2021, 10:52 PM CST (04:52 UTC)
Expired: Jan 25, 2021, 11:15 PM CST
In force: 23 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Tornado: Observed
Damage threat: Considerable
Hail: 0.75 in

County Jefferson County, AL

The radar

The Birmingham radar (KBMX), 64 km from the middle of the area, began a volume at 04:55 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
Jan 25, 5:52 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 4.9 hours before the alert went out and 63 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: 232 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 913 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 371 m²/s²
0-3 km storm-relative helicity: 501 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted.

506 
WFUS54 KBMX 260452
TORBMX
ALC073-260515-
/O.NEW.KBMX.TO.W.0003.210126T0452Z-210126T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
1052 PM CST Mon Jan 25 2021

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
  Northeastern Jefferson County in central Alabama...

* Until 1115 PM CST.
    
* At 1051 PM CST, a confirmed large and extremely dangerous tornado
  was located over Pinson, or near Gardendale, moving northeast at 45
  mph.

  This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

  HAZARD...Damaging tornado.

  SOURCE...Radar confirmed tornado.

  IMPACT...You are in a life-threatening situation. Flying debris 
           may be deadly to those caught without shelter. Mobile 
           homes will be destroyed. Considerable damage to homes, 
           businesses, and vehicles is likely and complete 
           destruction is possible.

* Locations impacted include...
  Trussville, Center Point, Clay, Pinson, Argo, Grayson Valley,
  Chalkville, Palmerdale and Village Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, 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 3377 8664 3376 8654 3374 8654 3373 8653
      3368 8653 3363 8672 3371 8674 3377 8666
TIME...MOT...LOC 0451Z 240DEG 37KT 3367 8670 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...<.75IN

$$

32/Davis

3 follow-up statements

559 
WWUS54 KBMX 260501
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1101 PM CST Mon Jan 25 2021

ALC073-260515-
/O.CON.KBMX.TO.W.0003.000000T0000Z-210126T0515Z/
Jefferson AL-
1101 PM CST Mon Jan 25 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 PM CST FOR
NORTHEASTERN JEFFERSON COUNTY...
        
At 1101 PM CST, a confirmed tornado was located over Clay, or near
Trussville, moving east at 40 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...
Trussville, Center Point, Clay, Pinson, Argo, Chalkville and Grayson
Valley.

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 3376 8654 3374 8654 3373 8653 3368 8653
      3365 8666 3371 8666 3373 8662
TIME...MOT...LOC 0501Z 249DEG 35KT 3368 8660 

TORNADO...OBSERVED
HAIL...<.75IN

$$

32/Davis

423 
WWUS54 KBMX 260504 RRA
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1104 PM CST Mon Jan 25 2021

ALC073-260515-
/O.CON.KBMX.TO.W.0003.000000T0000Z-210126T0515Z/
Jefferson AL-
1104 PM CST Mon Jan 25 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 PM CST FOR
NORTHEASTERN JEFFERSON COUNTY...
    
At 1104 PM CST, a severe thunderstorm capable of producing a tornado
was located over Clay, or near Trussville, moving northeast at 45
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...
Trussville, Clay and Argo. 

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 3376 8654 3374 8654 3373 8653 3368 8653
      3366 8662 3373 8662
TIME...MOT...LOC 0504Z 240DEG 37KT 3370 8656 

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

$$

32/Davis

754 
WWUS54 KBMX 260511
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
1111 PM CST Mon Jan 25 2021

ALC073-260521-
/O.EXP.KBMX.TO.W.0003.000000T0000Z-210126T0515Z/
Jefferson AL-
1111 PM CST Mon Jan 25 2021

...THE TORNADO WARNING FOR NORTHEASTERN JEFFERSON COUNTY WILL EXPIRE
AT 1115 PM CST...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 100 AM CST for central
Alabama.

LAT...LON 3376 8654 3374 8654 3373 8653 3368 8653
      3366 8662 3373 8662
TIME...MOT...LOC 0511Z 240DEG 37KT 3373 8650 

$$

32/Davis

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 25, 6:16 PM CST	Special Weather Statement	BMX	Winston	29 min
Jan 25, 6:48 PM CST	Special Weather Statement	BMX	Walker	27 min
Jan 25, 8:03 PM CST	Special Weather Statement	BMX	Pickens	27 min
Jan 25, 9:02 PM CST	Special Weather Statement	BMX	Etowah	43 min
Jan 25, 9:26 PM CST	Special Weather Statement	BMX	Jefferson	34 min
Jan 25, 9:35 PM CST	Special Weather Statement	BMX	Tuscaloosa	25 min
Jan 25, 10:24 PM CST	Special Weather Statement	BMX	Jefferson	51 min
Jan 25, 10:31 PM CST	Special Weather Statement	BMX	Pickens	44 min
Jan 25, 10:34 PM CST	Tornado Warning	BMX	Jefferson	26 min
Jan 25, 10:49 PM CST	Tornado Warning Tornado observed	BMX	St. Clair	41 min
Jan 25, 10:52 PM CST	Special Weather Statement	BMX	Tuscaloosa	53 min
Jan 25, 11:04 PM CST	Severe Thunderstorm Warning	BMX	Pickens	23 min
Jan 25, 11:19 PM CST	Areal Flood Advisory	BMX	Blount, Fayette, Jefferson, Lamar, Pickens, St. Clair and 2 more	3 hr
Jan 25, 11:46 PM CST	Areal Flood Advisory	BMX	Etowah, St. Clair	3 hr
Jan 25, 11:54 PM CST	Special Weather Statement	BMX	Jefferson	51 min
Jan 25, 11:59 PM CST	Special Weather Statement	BMX	Cherokee	46 min
Jan 26, 12:08 AM CST	Tornado Warning	BMX	Calhoun, Cherokee, Cleburne	24 min
Jan 26, 12:29 AM CST	Special Weather Statement	BMX	St. Clair	46 min
Jan 26, 1:44 AM CST	Special Weather Statement	BMX	Bibb	46 min
Jan 26, 3:17 AM CST	Special Weather Statement	BMX	Marengo	43 min
Jan 26, 4:13 AM CST	Special Weather Statement	BMX	Chambers, Tallapoosa	47 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.