Alert archive / Alabama / Tornado Warnings in 2019

Tornado Warning 53, NWS Mobile, AL

December 16, 2019Choctaw County, Alabama

NWS Mobile, AL issued this tornado warning at Dec 16, 2019, 7:40 PM CST for Choctaw County, Alabama. It was in force for 14 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: Dec 16, 2019, 7:40 PM CST (01:40 UTC)
Expired: Dec 16, 2019, 7:54 PM CST
In force: 14 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Choctaw County, AL

The radar

The Jackson/Brandon,MS radar (KDGX), 164 km from the middle of the area, began a volume at 01:43 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
Dec 16, 3:47 PM CST	Tornado Watch	SPC	10 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 1.7 hours before the alert went out and 171 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: 211 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 686 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 286 m²/s²
0-3 km storm-relative helicity: 288 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

As transmitted.

698 
WFUS54 KMOB 170140
TORMOB
ALC023-170215-
/O.NEW.KMOB.TO.W.0053.191217T0140Z-191217T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
740 PM CST Mon Dec 16 2019

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  North central Choctaw County in southwestern Alabama...

* Until 815 PM CST.
    
* At 739 PM CST, a severe thunderstorm capable of producing a tornado
  was located 5 miles north of Lisman, or 11 miles north of Butler,
  moving northeast at 40 mph.

  HAZARD...Tornado and quarter size hail.

  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.

* This tornadic thunderstorm will remain over mainly rural areas of
  north central Choctaw County.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3219 8827 3226 8836 3231 8830 3231 8799
TIME...MOT...LOC 0139Z 230DEG 36KT 3225 8825 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

CGAL

1 follow-up statement

600 
WWUS54 KMOB 170154
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
754 PM CST Mon Dec 16 2019

ALC023-170203-
/O.CAN.KMOB.TO.W.0053.000000T0000Z-191217T0215Z/
Choctaw AL-
754 PM CST Mon Dec 16 2019

...THE TORNADO WARNING FOR NORTH CENTRAL CHOCTAW COUNTY IS
CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1100 PM CST for southwestern
Alabama.

Remember, a Severe Thunderstorm Warning still remains in effect for
extreme northwest Choctaw County until 815 PM.

LAT...LON 3219 8827 3226 8836 3231 8830 3231 8799
TIME...MOT...LOC 0152Z 230DEG 36KT 3235 8812 

$$

CGAL

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 16, 6:44 PM CST	Tornado Warning Tornado observedConsiderable damage threat	MOB	Choctaw	61 min
Dec 16, 7:27 PM CST	Severe Thunderstorm Warning	MOB	Choctaw	35 min
Dec 16, 8:15 PM CST	Severe Thunderstorm Warning	MOB	Choctaw	45 min
Dec 16, 8:56 PM CST	Severe Thunderstorm Warning	MOB	Choctaw	49 min
Dec 16, 9:48 PM CST	Special Weather Statement	MOB	Wilcox	42 min
Dec 17, 12:42 AM CST	Special Marine Warning	MOB		48 min
Dec 17, 1:24 AM CST	Special Marine Warning	MOB		36 min
Dec 17, 1:27 AM CST	Severe Thunderstorm Warning	MOB	Covington, Escambia	48 min
Dec 17, 1:57 AM CST	Special Marine Warning	MOB		93 min
Dec 17, 2:08 AM CST	Gale Warning	MOB		30 hr
Dec 17, 2:09 AM CST	Severe Thunderstorm Warning	MOB	Covington	36 min
Dec 17, 2:18 AM CST	Severe Thunderstorm Warning	MOB	Mobile, Washington	42 min
Dec 17, 3:24 AM CST	Special Marine Warning	MOB		2 hr
Dec 17, 6:56 AM CST	Special Marine Warning	MOB		49 min
Dec 17, 7:14 AM CST	Special Marine Warning	MOB		61 min
Dec 17, 9:09 AM CST	Special Marine Warning	MOB		36 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.