Alert archive / Louisiana / Tornado Warnings in 2020

Tornado Warning 77, NWS Lake Charles, LA

December 13, 20206 parishes in Louisiana

NWS Lake Charles, LA issued this tornado warning at Dec 13, 2020, 6:11 PM CST for 6 parishes in Louisiana. It was in force for 34 min. 1 report 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: Dec 13, 2020, 6:11 PM CST (00:11 UTC)
Expired: Dec 13, 2020, 6:45 PM CST
In force: 34 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Acadia Parish, LA, Allen Parish, LA, Evangeline Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Saint Landry Parish, LA

What was reported inside it

Time	Report	Where	Remark
Dec 13, 6:45 PM CST	TSTM WND DMG	1 S Branch, LA	PUBLIC REPORTS TREE DOWN DR PARROT NEAR THE INTERSECTION OF PHILLIPS RD. TIME ESTIMATED BY RADAR.

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

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 0.2 hours before the alert went out and 80 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: 778 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 546 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 351 m²/s²
0-3 km storm-relative helicity: 370 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 9.2

Open this sounding in Storm Lab

The text

As transmitted.

456 
WFUS54 KLCH 140011
TORLCH
LAC001-003-039-053-055-097-140045-
/O.NEW.KLCH.TO.W.0077.201214T0011Z-201214T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lake Charles LA
611 PM CST Sun Dec 13 2020

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  North central Lafayette Parish in south central Louisiana...
  Northeastern Jefferson Davis Parish in southwestern Louisiana...
  Southwestern Evangeline Parish in central Louisiana...
  Northern Acadia Parish in southwestern Louisiana...
  Southwestern St. Landry Parish in central Louisiana...
  Southeastern Allen Parish in southwestern Louisiana...

* Until 645 PM CST.
    
* At 610 PM CST, a severe thunderstorm capable of producing a tornado
  was located over Basile, moving east 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.

* This dangerous storm will be near...
  Duralde around 620 PM CST.
  Eunice, Mowata and Maxie around 630 PM CST.
  Savoy around 635 PM CST.
  Richard and Swords around 640 PM CST.
  Church Point, Cankton, Branch and Lawtell around 645 PM CST.

This includes Interstate 49 between mile markers 7 and 20.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to 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 3036 9272 3056 9268 3054 9202 3025 9206
TIME...MOT...LOC 0010Z 278DEG 35KT 3047 9261 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Jones

1 follow-up statement

386 
WWUS54 KLCH 140032 RRA
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
632 PM CST Sun Dec 13 2020

LAC003-039-053-140042-
/O.CAN.KLCH.TO.W.0077.000000T0000Z-201214T0045Z/
Jefferson Davis LA-Evangeline LA-Allen LA-
632 PM CST Sun Dec 13 2020

...THE TORNADO WARNING FOR NORTHEASTERN JEFFERSON DAVIS...
SOUTHWESTERN EVANGELINE AND SOUTHEASTERN ALLEN PARISHES IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3025 9206 3032 9248 3054 9236 3054 9226
      3055 9226 3054 9202
TIME...MOT...LOC 0032Z 278DEG 35KT 3044 9236 

$$

LAC001-055-097-140045-
/O.CON.KLCH.TO.W.0077.000000T0000Z-201214T0045Z/
Lafayette LA-Acadia LA-St. Landry LA-
632 PM CST Sun Dec 13 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CST FOR NORTH
CENTRAL LAFAYETTE...NORTHEASTERN ACADIA AND SOUTHWESTERN ST. LANDRY
PARISHES...
    
At 632 PM CST, a severe thunderstorm capable of producing a tornado
was located over Richard, or near Eunice, moving east 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.

This dangerous storm will be near...
  Branch and Swords around 640 PM CST.
  Church Point and Lawtell around 645 PM CST.
  Cankton around 655 PM CST.
  Carencro, Sunset and Grand Coteau around 700 PM CST.

This includes Interstate 49 between mile markers 7 and 20.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to 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 3025 9206 3032 9248 3054 9236 3054 9226
      3055 9226 3054 9202
TIME...MOT...LOC 0032Z 278DEG 35KT 3044 9236 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Jones

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 13, 6:08 PM CST	Tornado Warning	LCH	Avoyelles, Evangeline, Saint Landry	37 min
Dec 13, 6:12 PM CST	Tornado Warning	LCH	Evangeline, Saint Landry	33 min
Dec 13, 6:38 PM CST	Tornado Warning	LCH	Acadia, Lafayette, Vermilion	37 min
Dec 13, 6:43 PM CST	Tornado Warning	LCH	Avoyelles, Saint Landry	32 min
Dec 13, 6:48 PM CST	Tornado Warning	LCH	Acadia, Lafayette, Saint Landry, Saint Martin	27 min
Dec 13, 7:16 PM CST	Special Weather Statement	LCH	Lafayette, Saint Martin, Vermilion	44 min
Dec 13, 8:00 PM CST	Special Weather Statement	LCH	Iberia, Saint Martin, St. Mary	45 min
Dec 13, 9:14 PM CST	Wind Advisory	LCH	Cameron, Lafayette, Saint Martin	9 hr
Dec 13, 10:11 PM CST	River Flood Warning	LCH	Rapides	52 days
Dec 14, 11:11 AM CST	River Flood Warning	LCH	Allen, Beauregard	71 hr
Dec 14, 11:11 AM CST	River Flood Warning	LCH	Beauregard, Calcasieu	21 days

Nearby

Tornado Warnings in Louisiana, 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.