Alert archive / Alabama / Tornado Warnings in 2019

Tornado Warning 13, NWS Birmingham, AL

February 23, 2019Walker County, Alabama

NWS Birmingham, AL issued this tornado warning at Feb 23, 2019, 3:07 PM CST for Walker 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: Feb 23, 2019, 3:07 PM CST (21:07 UTC)
Expired: Feb 23, 2019, 3:30 PM CST
In force: 23 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Walker County, AL

The radar

The Birmingham radar (KBMX), 98 km from the middle of the area, began a volume at 21:08 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
Feb 23, 3:01 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.1 hours before the alert went out and 96 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: 90 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 498 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 332 m²/s²
0-3 km storm-relative helicity: 427 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

135 
WFUS54 KBMX 232107
TORBMX
ALC127-232130-
/O.NEW.KBMX.TO.W.0013.190223T2107Z-190223T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Birmingham AL
307 PM CST SAT FEB 23 2019

The National Weather Service in Birmingham has issued a

* Tornado Warning for...
  North central Walker County in central Alabama...

* Until 330 PM CST.
    
* At 307 PM CST, a severe thunderstorm capable of producing a tornado
  was located near Carbon Hill, moving northeast at 40 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...
  Jasper, Curry, Smith Lake, Cedrum Area, Holly Grove, Lupton, Gamble
  and Walker County 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 3399 8722 3398 8720 3399 8719 3399 8715
      3398 8714 3397 8714 3396 8712 3383 8742
      3386 8747 3400 8738
TIME...MOT...LOC 2107Z 226DEG 34KT 3387 8741 

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

$$

25/Owen

3 follow-up statements

008 
WWUS54 KBMX 232114
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
314 PM CST SAT FEB 23 2019

ALC127-232130-
/O.CON.KBMX.TO.W.0013.000000T0000Z-190223T2130Z/
Walker AL-
314 PM CST SAT FEB 23 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CST FOR NORTH
CENTRAL WALKER COUNTY...
    
At 314 PM CST, a severe thunderstorm capable of producing a tornado
was located near Jasper, moving northeast at 40 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...
Curry, Smith Lake, Lupton and Walker County 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 3399 8722 3398 8720 3399 8719 3399 8715
      3398 8714 3397 8714 3396 8712 3388 8735
      3390 8741 3400 8738
TIME...MOT...LOC 2114Z 226DEG 34KT 3392 8735 

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

$$

25/Owen

907 
WWUS54 KBMX 232121
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
321 PM CST SAT FEB 23 2019

ALC127-232130-
/O.CON.KBMX.TO.W.0013.000000T0000Z-190223T2130Z/
Walker AL-
321 PM CST SAT FEB 23 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CST FOR NORTH
CENTRAL WALKER COUNTY...
    
At 321 PM CST, a severe thunderstorm capable of producing a tornado
was located near Curry, or 7 miles north of Jasper, moving northeast
at 40 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...
Curry and Smith Lake. 

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 3399 8722 3398 8720 3399 8719 3399 8715
      3398 8714 3397 8714 3397 8715 3391 8730
      3394 8735 3400 8734
TIME...MOT...LOC 2121Z 226DEG 34KT 3397 8729 

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

$$

25/Owen

349 
WWUS54 KBMX 232128
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
328 PM CST SAT FEB 23 2019

ALC127-232138-
/O.EXP.KBMX.TO.W.0013.000000T0000Z-190223T2130Z/
Walker AL-
328 PM CST SAT FEB 23 2019

...THE TORNADO WARNING FOR NORTH CENTRAL WALKER COUNTY WILL EXPIRE AT
330 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 1000 PM CST for central and
northwestern Alabama.

LAT...LON 3399 8722 3398 8720 3399 8719 3399 8715
      3398 8714 3397 8714 3397 8715 3391 8730
      3394 8735 3400 8734
TIME...MOT...LOC 2128Z 226DEG 34KT 3401 8724 

$$

25/Owen

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 23, 3:13 AM CST	Areal Flood Warning	BMX	Fayette, Lamar, Marion, Walker, Winston	6 hr
Feb 23, 2:40 PM CST	Severe Thunderstorm Warning	BMX	Tuscaloosa	50 min
Feb 23, 3:19 PM CST	Tornado Warning	BMX	Winston	26 min
Feb 23, 3:39 PM CST	Severe Thunderstorm Warning	BMX	Jefferson	66 min
Feb 23, 4:39 PM CST	Severe Thunderstorm Warning	BMX	Lamar, Marion	34 min
Feb 23, 5:05 PM CST	Special Weather Statement	BMX	Marion	40 min
Feb 23, 5:27 PM CST	Tornado Warning Tornado observed	BMX	Lamar	48 min
Feb 23, 5:29 PM CST	Special Weather Statement	BMX	Winston	31 min
Feb 23, 5:59 PM CST	Tornado Warning Tornado observed	BMX	Fayette	35 min

Nearby

Tornado Warnings in Alabama, 2019 Every tornado warning in 2019 Tornadoes in 2019

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.