Alert archive / Louisiana / Tornado Warnings in 2020

Tornado Warning 76, NWS Lake Charles, LA

December 13, 2020Avoyelles Parish, Evangeline Parish, Saint Landry Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Dec 13, 2020, 6:08 PM CST for Avoyelles Parish, Evangeline Parish, Saint Landry Parish, Louisiana. It was in force for 37 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 13, 2020, 6:08 PM CST (00:08 UTC)
Expired
Dec 13, 2020, 6:45 PM CST
In force
37 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Avoyelles Parish, LA, Evangeline Parish, LA, Saint Landry Parish, LA

The radar

The Ft Polk radar (KPOE), 75 km from the middle of the area, began a volume at 00:13 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 nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 0.1 hours before the alert went out and 115 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-pSkew-T log-p diagram, Lake Charles Mun, LA at 00:00Z on 2020-12-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 778 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 00:00Z on 2020-12-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 351 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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.

048 
WFUS54 KLCH 140008
TORLCH
LAC009-039-097-140045-
/O.NEW.KLCH.TO.W.0076.201214T0008Z-201214T0045Z/

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

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  Central Evangeline Parish in central Louisiana...
  Southwestern Avoyelles Parish in central Louisiana...
  North central St. Landry Parish in central Louisiana...

* Until 645 PM CST.
    
* At 608 PM CST, a severe thunderstorm capable of producing a tornado
  was located near Pine Prairie, or near Turkey Creek, 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...
  Bayou Chicot around 620 PM CST.
  Chicot State Park around 625 PM CST.
  Indian Lake around 630 PM CST.
  Whiteville around 635 PM CST.
  Morrow around 645 PM CST.

Other locations impacted by this tornadic thunderstorm include St.
Landry.

This includes Interstate 49 between mile markers 37 and 48.
 
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 3076 9249 3086 9249 3092 9202 3073 9202
TIME...MOT...LOC 0008Z 267DEG 35KT 3081 9248 

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

$$

Jones
1 follow-up statement
060 
WWUS54 KLCH 140032
SVSLCH

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

LAC039-140041-
/O.CAN.KLCH.TO.W.0076.000000T0000Z-201214T0045Z/
Evangeline LA-
632 PM CST Sun Dec 13 2020

...THE TORNADO WARNING FOR CENTRAL EVANGELINE PARISH IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3073 9202 3075 9217 3077 9217 3077 9218
      3078 9220 3079 9221 3090 9218 3092 9202
TIME...MOT...LOC 0031Z 267DEG 35KT 3082 9221 

$$

LAC009-097-140045-
/O.CON.KLCH.TO.W.0076.000000T0000Z-201214T0045Z/
Avoyelles LA-St. Landry LA-
632 PM CST Sun Dec 13 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CST FOR SOUTH
CENTRAL AVOYELLES AND NORTH CENTRAL ST. LANDRY PARISHES...
    
At 631 PM CST, a severe thunderstorm capable of producing a tornado
was located over Indian Lake, or 7 miles west of Morrow, 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...
  Whiteville around 635 PM CST.
  Morrow around 645 PM CST.

This includes Interstate 49 near mile marker 38, and between mile
markers 40 and 41.
 
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 3073 9202 3075 9217 3077 9217 3077 9218
      3078 9220 3079 9221 3090 9218 3092 9202
TIME...MOT...LOC 0031Z 267DEG 35KT 3082 9221 

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

$$

Jones

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 13, 6:11 PM CSTTornado WarningLCHAcadia, Allen, Evangeline, Jefferson Davis, Lafayette, Saint Landry34 min
Dec 13, 6:12 PM CSTTornado WarningLCHEvangeline, Saint Landry33 min
Dec 13, 6:38 PM CSTTornado WarningLCHAcadia, Lafayette, Vermilion37 min
Dec 13, 6:43 PM CSTTornado WarningLCHAvoyelles, Saint Landry32 min
Dec 13, 6:48 PM CSTTornado WarningLCHAcadia, Lafayette, Saint Landry, Saint Martin27 min
Dec 13, 7:16 PM CSTSpecial Weather StatementLCHLafayette, Saint Martin, Vermilion44 min
Dec 13, 8:00 PM CSTSpecial Weather StatementLCHIberia, Saint Martin, St. Mary45 min
Dec 13, 9:14 PM CSTWind AdvisoryLCHCameron, Lafayette, Saint Martin9 hr
Dec 13, 10:11 PM CSTRiver Flood WarningLCHRapides52 days
Dec 14, 11:11 AM CSTRiver Flood WarningLCHAllen, Beauregard71 hr
Dec 14, 11:11 AM CSTRiver Flood WarningLCHBeauregard, Calcasieu21 days

Nearby

Tornado Warnings in Louisiana, 2020Every tornado warning in 2020Tornadoes 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.