Alert archive / Louisiana / Tornado Warnings in 2021

Tornado Warning 70, NWS Lake Charles, LA

December 6, 2021Vernon Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Dec 6, 2021, 6:37 AM CST for Vernon Parish, Louisiana. It was in force for 23 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 6, 2021, 6:37 AM CST (12:37 UTC)
Expired: Dec 6, 2021, 7:00 AM CST
In force: 23 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Vernon Parish, LA

The radar

The Ft Polk radar (KPOE), 20 km from the middle of the area, began a volume at 12:39 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
Dec 6, 6:55 AM CST	TORNADO	Slagle, LA	VERNON 911 RECEIVED REPORT OF LARGE TREES DOWN IN SLAGLE. TIME ESTIMATED BY PASSAGE OF RADAR VELOCITY COUPLET.

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 12:00Z, 0.6 hours before the alert went out and 133 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: 1185 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 725 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 186 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 7.2

Open this sounding in Storm Lab

The text

As transmitted.

384 
WFUS54 KLCH 061237
TORLCH
LAC115-061300-
/O.NEW.KLCH.TO.W.0070.211206T1237Z-211206T1300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lake Charles LA
637 AM CST Mon Dec 6 2021

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  Northeastern Vernon Parish in west central Louisiana...

* Until 700 AM CST.
    
* At 636 AM CST, a severe thunderstorm capable of producing a tornado
  was located near Anacoco, 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...
  Slagle and Kurthwood around 645 AM CST.
  Hutton around 655 AM CST.

Other locations impacted by this tornadic thunderstorm include
Simpson.

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 3136 9299 3134 9298 3134 9297 3120 9292
      3118 9333 3131 9334 3137 9316
TIME...MOT...LOC 1236Z 255DEG 34KT 3128 9324 

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

$$

24

1 follow-up statement

520 
WWUS54 KLCH 061250
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
650 AM CST Mon Dec 6 2021

LAC115-061300-
/O.CON.KLCH.TO.W.0070.000000T0000Z-211206T1300Z/
Vernon LA-
650 AM CST Mon Dec 6 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 AM CST FOR
NORTHEASTERN VERNON PARISH...
    
At 649 AM CST, a severe thunderstorm capable of producing a tornado
was located near Slagle, moving east at 20 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...
  Slagle around 700 AM CST.

Other locations impacted by this tornadic thunderstorm include
Simpson.

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 3135 9300 3134 9298 3134 9297 3120 9292
      3118 9325 3126 9326 3135 9316
TIME...MOT...LOC 1249Z 280DEG 18KT 3122 9319 

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

$$

24

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 6, 3:00 AM CST	Small Craft Advisory	LCH		21 hr
Dec 6, 6:24 AM CST	Special Weather Statement	LCH	Vernon	36 min
Dec 6, 7:01 AM CST	Special Weather Statement	LCH	Vernon	29 min
Dec 6, 7:10 AM CST	Tornado Warning	LCH	Rapides, Vernon	35 min
Dec 6, 8:09 AM CST	Tornado Warning	LCH	Rapides	15 min
Dec 6, 10:40 AM CST	Severe Thunderstorm Warning	LCH	Rapides	35 min

Nearby

Tornado Warnings in Louisiana, 2021 Every tornado warning in 2021 Tornadoes in 2021

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.