Alert archive / Alabama / Tornado Warnings in 2020

Tornado Warning 22, NWS Mobile, AL

April 19, 2020Choctaw County, Alabama

NWS Mobile, AL issued this tornado warning at Apr 19, 2020, 5:40 PM CDT for Choctaw 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: Apr 19, 2020, 5:40 PM CDT (22:40 UTC)
Expired: Apr 19, 2020, 6:03 PM CDT
In force: 23 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Choctaw County, AL

The radar

The Mobile radar (KMOB), 149 km from the middle of the area, began a volume at 22:42 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
Apr 19, 3:56 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.7 hours before the alert went out and 188 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: 776 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 610 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 323 m²/s²
0-3 km storm-relative helicity: 329 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.7

Open this sounding in Storm Lab

The text

As transmitted.

240 
WFUS54 KMOB 192240
TORMOB
ALC023-192330-
/O.NEW.KMOB.TO.W.0022.200419T2240Z-200419T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
540 PM CDT Sun Apr 19 2020

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Central Choctaw County in southwestern Alabama...

* Until 630 PM CDT.
    
* At 540 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 5 miles north of Toxey, or 9 miles southwest of Butler,
  moving east at 50 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.

* This tornadic thunderstorm will remain over mainly rural areas of
  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.

&&

LAT...LON 3208 8805 3206 8807 3207 8810 3205 8812
      3201 8811 3199 8810 3201 8809 3198 8806
      3198 8807 3196 8807 3195 8808 3197 8809
      3195 8812 3194 8840 3203 8841 3211 8805
TIME...MOT...LOC 2240Z 261DEG 44KT 3199 8833 

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

$$

2 follow-up statements

302 
WWUS54 KMOB 192252
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
552 PM CDT Sun Apr 19 2020

ALC023-192330-
/O.CON.KMOB.TO.W.0022.000000T0000Z-200419T2330Z/
Choctaw AL-
552 PM CDT Sun Apr 19 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR CENTRAL
CHOCTAW COUNTY...
    
At 552 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southeast of Butler, moving east at 50 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.

This tornadic thunderstorm will remain over mainly rural areas of
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.

&&

LAT...LON 3208 8805 3206 8807 3207 8810 3205 8812
      3201 8811 3199 8810 3201 8809 3198 8806
      3198 8807 3196 8807 3195 8808 3197 8809
      3195 8812 3195 8823 3207 8825 3211 8805
TIME...MOT...LOC 2252Z 265DEG 43KT 3200 8817 

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

$$

776 
WWUS54 KMOB 192303
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
603 PM CDT Sun Apr 19 2020

ALC023-192313-
/O.CAN.KMOB.TO.W.0022.000000T0000Z-200419T2330Z/
Choctaw AL-
603 PM CDT Sun Apr 19 2020

...THE TORNADO WARNING FOR 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 CDT for southwestern
Alabama.

LAT...LON 3208 8805 3206 8807 3207 8810 3205 8812
      3201 8811 3199 8810 3201 8809 3198 8806
      3198 8807 3196 8807 3195 8808 3197 8809
      3195 8812 3195 8823 3207 8825 3211 8805
TIME...MOT...LOC 2302Z 261DEG 44KT 3202 8800 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 4:01 AM CDT	Small Craft Advisory	MOB		7 hr
Apr 19, 11:24 AM CDT	Small Craft Advisory	MOB		23 hr
Apr 19, 2:15 PM CDT	Special Marine Warning	MOB		2 hr
Apr 19, 3:24 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	51 min
Apr 19, 3:50 PM CDT	Severe Thunderstorm Warning	MOB	Crenshaw	14 min
Apr 19, 3:58 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	47 min
Apr 19, 4:15 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	45 min
Apr 19, 4:29 PM CDT	Tornado Warning	MOB	Choctaw	46 min
Apr 19, 5:00 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke	60 min
Apr 19, 5:57 PM CDT	Tornado Warning	MOB	Clarke	48 min
Apr 19, 6:14 PM CDT	Severe Thunderstorm Warning	MOB	Clarke	31 min
Apr 19, 6:27 PM CDT	Tornado Warning	MOB	Wilcox	48 min
Apr 19, 6:32 PM CDT	Tornado Warning	MOB	Clarke, Monroe	43 min

Nearby

Tornado Warnings in Alabama, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.