Alert archive / Alabama / Tornado Warnings in 2020

Tornado Warning 17, NWS Mobile, AL

April 12, 2020Choctaw County, Clarke County, Washington County, Alabama

NWS Mobile, AL issued this tornado warning at Apr 12, 2020, 8:58 PM CDT for Choctaw County, Clarke County, Washington County, Alabama. It was in force for 47 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 12, 2020, 8:58 PM CDT (01:58 UTC)
Expired: Apr 12, 2020, 9:45 PM CDT
In force: 47 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Choctaw County, AL, Clarke County, AL, Washington County, AL

The radar

The Mobile radar (KMOB), 111 km from the middle of the area, began a volume at 02:01 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.

What was reported inside it

Time	Report	Where	Remark
Apr 12, 9:03 PM CDT	TORNADO	1 Wsw Cullomburg, AL	AN EF-1 TORNADO TOUCHED DOWN IN A HEAVILY WOODED AREA WEST OF LASITER RD (ALSO WEST OF HIGHWAY 17.) THE TORNADO SNAPPED NUMEROUS PINE TREES TREES ALONG ITS PATH. THE START AND END POINTS ARE ESTIMATED DUE TO LACK OF ACCESS. THERE WAS ALSO A MUCH LARGER AREA OF
Apr 12, 9:07 PM CDT	TSTM WND DMG	3 E Cullomburg, AL	SEVERAL DOWNED TREES REPORTED AROUND CULLOMBURG AND BLADON SPRINGS.
Apr 12, 9:16 PM CDT	TORNADO	2 S West Bend, AL	THE TORNADO TOUCHED DOWN APPROXIMATELY THREE QUARTERS OF A MILE WEST OF WEST BEND ROAD AND MOVED NORTHWEST ACROSS WEST BEND ROAD BEFORE LIFTING. NUMEROUS PINE TREES WERE SNAPPED ALONG THE PATH. THE START POINT OF THE PATH IS ESTIMATED. THERE WAS ALSO A MUCH LA
Apr 12, 9:17 PM CDT	TSTM WND DMG	4 Sse Coffeeville, AL	NUMEROUS TREES DOWN ON HWY 69 BETWEEN COFFEEVILLE AND SALIPTA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 12, 4:38 PM CDT	Tornado Watch PDS	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 2.0 hours before the alert went out and 191 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: 1242 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 646 m above ground
0-6 km bulk shear: 87 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

317 
WFUS54 KMOB 130158
TORMOB
ALC023-025-129-130245-
/O.NEW.KMOB.TO.W.0017.200413T0158Z-200413T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
858 PM CDT Sun Apr 12 2020

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  South central Choctaw County in southwestern Alabama...
  Northwestern Washington County in southwestern Alabama...
  Northwestern Clarke County in southwestern Alabama...

* Until 945 PM CDT.
    
* At 858 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 5 miles west of Millry, or 14 miles northwest of
  Chatom, moving east at 55 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 dangerous storm will be near...
  Coffeeville around 920 PM CDT.

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 3157 8845 3166 8846 3192 8787 3167 8780
TIME...MOT...LOC 0158Z 251DEG 47KT 3163 8840 

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

$$

1 follow-up statement

977 
WWUS54 KMOB 130215
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
915 PM CDT Sun Apr 12 2020

ALC023-025-129-130245-
/O.CON.KMOB.TO.W.0017.000000T0000Z-200413T0245Z/
Choctaw AL-Washington AL-Clarke AL-
915 PM CDT Sun Apr 12 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR SOUTH
CENTRAL CHOCTAW...NORTH CENTRAL WASHINGTON AND NORTHWESTERN CLARKE
COUNTIES...
    
At 915 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles southwest of Coffeeville, or 17 miles northeast
of Chatom, moving east at 55 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
south central Choctaw, north central Washington and northwestern
Clarke Counties.

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 3161 8820 3175 8825 3192 8787 3167 8780
TIME...MOT...LOC 0215Z 252DEG 48KT 3170 8813 

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

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 12, 8:46 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington	44 min
Apr 12, 9:13 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Monroe, Washington, Wilcox	47 min
Apr 12, 9:30 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Washington	45 min
Apr 12, 9:38 PM CDT	Tornado Warning	MOB	Wilcox	52 min
Apr 12, 9:43 PM CDT	Tornado Warning	MOB	Clarke, Monroe, Wilcox	35 min
Apr 12, 9:43 PM CDT	Tornado Warning	MOB	Wilcox	32 min
Apr 12, 9:47 PM CDT	Severe Thunderstorm Warning	MOB	Mobile, Washington	43 min
Apr 12, 10:04 PM CDT	Severe Thunderstorm Warning	MOB	Washington	41 min
Apr 12, 10:06 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Washington	39 min
Apr 12, 10:14 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Clarke, Monroe, Wilcox	46 min
Apr 12, 10:32 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Conecuh, Escambia, Mobile, Monroe and 1 more	43 min
Apr 12, 10:34 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Conecuh, Monroe	56 min
Apr 12, 10:59 PM CDT	Special Weather Statement	MOB	Wilcox	46 min
Apr 12, 11:32 PM CDT	Special Weather Statement	MOB	Butler, Conecuh, Crenshaw, Monroe	43 min
Apr 12, 11:58 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	47 min
Apr 13, 12:41 AM CDT	Special Marine Warning	MOB		64 min
Apr 13, 1:12 AM CDT	Special Weather Statement	MOB	Covington	48 min
Apr 13, 1:58 AM CDT	Special Marine Warning	MOB		62 min
Apr 13, 2:14 AM CDT	Special Marine Warning	MOB		20 min
Apr 13, 2:52 AM CDT	Special Marine Warning	MOB		68 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.