Alert archive / Louisiana / Tornado Warnings in 2011

Tornado Warning 31, NWS Lake Charles, LA

November 22, 2011Avoyelles Parish, Evangeline Parish, Rapides Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Nov 22, 2011, 9:30 AM CST for Avoyelles Parish, Evangeline Parish, Rapides Parish, Louisiana. It was in force for 30 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
Nov 22, 2011, 9:30 AM CST (15:30 UTC)
Expired
Nov 22, 2011, 10:00 AM CST
In force
30 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon

Counties Avoyelles Parish, LA, Evangeline Parish, LA, Rapides Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 3.5 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-pSkew-T log-p diagram, Lake Charles Mun, LA at 12:00Z on 2011-11-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 764 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 12:00Z on 2011-11-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 200 square meters per square second.19395878Sfc1 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
764 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
580 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
200 m²/s²
0-3 km storm-relative helicity
253 m²/s²
Significant tornado parameter
0.8
Supercell composite
5.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

466 
WFUS54 KLCH 221530
TORLCH
LAC009-039-079-221600-
/O.NEW.KLCH.TO.W.0031.111122T1530Z-111122T1600Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
930 AM CST TUE NOV 22 2011

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL AVOYELLES PARISH IN CENTRAL LOUISIANA...
  THIS INCLUDES BUNKIE...
  NORTH CENTRAL EVANGELINE PARISH IN CENTRAL LOUISIANA...
  SOUTHEASTERN RAPIDES PARISH IN CENTRAL LOUISIANA...
  THIS INCLUDES...GLENMORA...CHENEYVILLE...

* UNTIL 1000 AM CST

* AT 927 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR GLENMORA...
  MOVING EAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  LECOMPTE BY 945 AM CST...
  CHENEYVILLE BY 955 AM CST...
  BUNKIE AND ECHO BY 1000 AM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

NATIONAL WEATHER SERVICE RADAR INDICATES A TORNADO MAY FORM AT ANY
TIME. TAKE COVER NOW! ABANDON MOBILE HOMES AND VEHICLES. MOVE TO AN
INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR AWAY FROM WINDOWS.

&&

PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE AT
337-477-5285 EXTENSION 1.

LAT...LON 3116 9212 3089 9212 3094 9266 3112 9265
TIME...MOT...LOC 1530Z 273DEG 33KT 3103 9254

$$

24
1 follow-up statement
723 
WWUS54 KLCH 221559
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
959 AM CST TUE NOV 22 2011

LAC009-039-079-221609-
/O.EXP.KLCH.TO.W.0031.000000T0000Z-111122T1600Z/
RAPIDES LA-EVANGELINE LA-AVOYELLES LA-
959 AM CST TUE NOV 22 2011

...THE TORNADO WARNING FOR WEST CENTRAL AVOYELLES...NORTH CENTRAL
EVANGELINE AND SOUTHEASTERN RAPIDES PARISHES WILL EXPIRE AT 1000 AM
CST...

LAT...LON 3116 9212 3089 9212 3094 9266 3112 9265
TIME...MOT...LOC 1559Z 273DEG 33KT 3102 9223

$$

24

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 22, 8:31 AM CSTTornado WarningLCHVernon21 min
Nov 22, 5:49 PM CSTSmall Craft AdvisoryLCH10 hr

Nearby

Tornado Warnings in Louisiana, 2011Every tornado warning in 2011Tornadoes in 2011

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.