Alert archive / Louisiana / Tornado Warnings in 2011

Tornado Warning 5, NWS Lake Charles, LA

March 8, 2011Rapides Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Mar 8, 2011, 8:46 PM CST for Rapides Parish, Louisiana. It was in force for 29 min. 3 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
Mar 8, 2011, 8:46 PM CST (02:46 UTC)
Expired
Mar 8, 2011, 9:15 PM CST
In force
29 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon

County Rapides Parish, LA

What was reported inside it

TimeReportWhereRemark
Mar 8, 9:00 PM CSTTORNADO 13 W Woodworth, LAAN EF1 TORNADO TOUCHED DOWN IN KISATCHIE NATIONAL FOREST. MANY TREES WERE UPROOTED AND SNAPPED WHICH BLOCKED SEVERAL FORESTRY ROADS. THE PATH LENGTH WAS 2 TO 3 MILES WITH A PATH WIDTH OF 50 YARDS.
Mar 8, 9:04 PM CSTTORNADO 13 W Woodworth, LAAN EF1 TORNADO TOUCHED DOWN IN KISATCHIE NATIONAL FOREST. SEVERAL TREES WERE UPROOTED AND SNAPPED WHICH BLOCKED SEVERAL FORESTRY ROADS. THE PATH LENGTH WAS 2 TO 3 MILES WITH A PATH WIDTH OF 50 YARDS.
Mar 8, 9:04 PM CSTTORNADO3 W Woodworth, LAAN EF1 TORNADO TOUCHED DOWN IN KISATCHIE NATIONAL FOREST. SEVERAL TREES WERE UPROOTED AND SNAPPED WHICH BLOCKED SEVERAL FORESTRY ROADS. THE PATH LENGTH WAS 2 TO 3 MILES WITH A PATH WIDTH OF 50 YARDS.

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.

IssuedProductOfficeLasted
Mar 8, 1:08 PM CSTTornado WatchSPC9 hr
Mar 8, 7:37 PM CSTTornado WatchSPC7 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 2.8 hours before the alert went out and 125 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 2011-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2444 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 2011-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 195 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
2444 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
506 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
195 m²/s²
0-3 km storm-relative helicity
210 m²/s²
Significant tornado parameter
2.5
Supercell composite
12.5

Open this sounding in Storm Lab

The text

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

600 
WFUS54 KLCH 090246
TORLCH
LAC079-090315-
/O.NEW.KLCH.TO.W.0005.110309T0246Z-110309T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
846 PM CST TUE MAR 8 2011

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL RAPIDES PARISH IN CENTRAL LOUISIANA...

* UNTIL 915 PM CST

* AT 842 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR ELMER...
  MOVING NORTHEAST AT 15 MPH.

* THE TORNADO WILL BE NEAR...
  OTIS BY 905 PM 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST WEDNESDAY MORNING
FOR SOUTHWESTERN LOUISIANA.

&&

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

LAT...LON 3124 9272 3117 9245 3099 9261 3106 9278
TIME...MOT...LOC 0247Z 205DEG 11KT 3111 9264

$$

21

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 8, 6:26 PM CSTAreal Flood AdvisoryLCHRapides109 min
Mar 8, 6:33 PM CSTSpecial Weather StatementLCHRapides42 min
Mar 8, 6:44 PM CSTSpecial Weather StatementLCHBeauregard61 min
Mar 8, 7:41 PM CSTFlash Flood WarningLCHAvoyelles, Rapides3 hr
Mar 8, 7:43 PM CSTSpecial Weather StatementLCHAllen62 min
Mar 8, 8:01 PM CSTSevere Thunderstorm WarningLCHAllen, Beauregard, Rapides, Vernon59 min
Mar 8, 8:58 PM CSTTornado WarningLCHRapides47 min
Mar 8, 9:32 PM CSTSpecial Weather StatementLCHVernon58 min
Mar 8, 9:44 PM CSTSevere Thunderstorm WarningLCHRapides30 min
Mar 8, 9:58 PM CSTSevere Thunderstorm WarningLCHVernon62 min
Mar 8, 10:28 PM CSTFlash Flood WarningLCHRapides, Vernon3 hr
Mar 8, 11:36 PM CSTSpecial Weather StatementLCHRapides39 min
Mar 9, 12:07 AM CSTSpecial Weather StatementLCHRapides53 min
Mar 9, 12:11 AM CSTSevere Thunderstorm WarningLCHAvoyelles, Rapides34 min
Mar 9, 1:00 AM CSTSevere Thunderstorm WarningLCHRapides60 min
Mar 9, 1:20 AM CSTSpecial Weather StatementLCHAvoyelles40 min
Mar 9, 1:32 AM CSTFlash Flood WarningLCHRapides, Vernon3 hr
Mar 9, 2:05 AM CSTSpecial Weather StatementLCHAvoyelles40 min
Mar 9, 3:13 AM CSTSmall Craft AdvisoryLCH31 hr
Mar 9, 3:48 AM CSTSpecial Weather StatementLCHSaint Martin42 min
Mar 9, 4:38 AM CSTAreal Flood WarningLCHRapides3 hr
Mar 9, 8:53 AM CSTMarine Dense Fog AdvisoryLCH9 hr
Mar 9, 11:20 AM CSTRiver Flood WarningLCHAllen, Rapides53 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.