Alert archive / Louisiana / Tornado Warnings in 2011

Tornado Warning 8, NWS Lake Charles, LA

April 4, 2011Evangeline Parish, Saint Landry Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Apr 4, 2011, 4:19 PM CDT for Evangeline Parish, Saint Landry Parish, Louisiana. It was in force for 26 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: Apr 4, 2011, 4:19 PM CDT (21:19 UTC)
Expired: Apr 4, 2011, 4:45 PM CDT
In force: 26 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon

Counties Evangeline Parish, LA, Saint Landry Parish, LA

What was reported inside it

Time	Report	Where	Remark
Apr 4, 4:20 PM CDT	TSTM WND DMG	8 Ne Ville Platte, LA	ST LANDRY PARISH SHERIFF OFFICE REPORTED TREES BLOWN DOWN AT HWY 29 AND I-49
Apr 4, 4:25 PM CDT	TORNADO	10 Ene Ville Platte, LA	UNCONFIRMED REPORT FROM THE PUBLIC OF A TORNADO VIEWED PASSING ACROSS A FIELD NORTH OF GRAND PRAIRIE
Apr 4, 4:39 PM CDT	TSTM WND DMG	3 N Washington, LA	ST LANDRY PARISH SHERIFF OFFICE REPORTED TREES BLOWN DOWN AT HWY 10 AND I-49

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.

Issued	Product	Office	Lasted
Apr 4, 10:53 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.3 hours before the alert went out and 141 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: 1440 J/kg
Mixed-layer CIN: -231 J/kg
Mixed-layer LCL: 637 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

809 
WFUS54 KLCH 042119
TORLCH
LAC039-097-042145-
/O.NEW.KLCH.TO.W.0008.110404T2119Z-110404T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
419 PM CDT MON APR 4 2011

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL EVANGELINE PARISH IN CENTRAL LOUISIANA...
  NORTHERN ST. LANDRY PARISH IN CENTRAL LOUISIANA...
  THIS INCLUDES...MORROW...BAYOU CURRENT...PALMETTO...MELVILLE...

* UNTIL 445 PM CDT

* AT 416 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR INDIAN
  LAKE...MOVING EAST AT 45 MPH.

* THE TORNADO WILL BE NEAR...
  WHITEVILLE AND GRAND PRAIRIE BY 425 PM CDT...
  MORROW BY 430 PM CDT...
  BIG CANE BY 435 PM CDT...
  LEBEAU BY 440 PM CDT...
  PALMETTO AND BAYOU CURRENT BY 445 PM CDT...

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 600 PM CDT MONDAY EVENING FOR
SOUTHWESTERN LOUISIANA AND SOUTHEAST TEXAS.

&&

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

LAT...LON 3062 9226 3085 9226 3086 9180 3085 9179
      3082 9180 3081 9177 3069 9172 3068 9173
TIME...MOT...LOC 2120Z 255DEG 38KT 3074 9220

$$

27

1 follow-up statement

749 
WWUS54 KLCH 042134
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
434 PM CDT MON APR 4 2011

LAC039-042144-
/O.CAN.KLCH.TO.W.0008.000000T0000Z-110404T2145Z/
EVANGELINE LA-
434 PM CDT MON APR 4 2011

...THE TORNADO WARNING FOR EAST CENTRAL EVANGELINE PARISH IS
CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT MONDAY EVENING FOR
SOUTHWESTERN LOUISIANA AND SOUTHEAST TEXAS.

LAT...LON 3068 9173 3065 9216 3073 9217 3077 9217
      3078 9218 3085 9219 3086 9180 3085 9179
      3082 9180 3081 9177 3070 9172
TIME...MOT...LOC 2134Z 248DEG 46KT 3085 9198

$$

LAC097-042145-
/O.CON.KLCH.TO.W.0008.000000T0000Z-110404T2145Z/
ST. LANDRY LA-
434 PM CDT MON APR 4 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR NORTHERN
ST. LANDRY PARISH...

AT 430 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
TORNADO.  THIS TORNADO WAS LOCATED NEAR BIG CANE..MOVING EAST AT 55
MPH.

THE TORNADO WILL BE NEAR...
  BAYOU CURRENT BY 445 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT MONDAY EVENING FOR
SOUTHWESTERN LOUISIANA AND SOUTHEAST TEXAS.

&&

LAT...LON 3068 9173 3065 9216 3073 9217 3077 9217
      3078 9218 3085 9219 3086 9180 3085 9179
      3082 9180 3081 9177 3070 9172
TIME...MOT...LOC 2134Z 248DEG 46KT 3085 9198

$$

BRAZZELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 7:56 PM CDT	Gale Watch	LCH		14 hr
Apr 3, 7:56 PM CDT	Low Water Advisory	LCH		35 hr
Apr 4, 4:16 AM CDT	Wind Advisory	LCH	Allen, Avoyelles, Beauregard, Evangeline, Lafayette, Rapides and 3 more	16 hr
Apr 4, 9:59 AM CDT	Gale Warning	LCH		13 hr
Apr 4, 3:04 PM CDT	Severe Thunderstorm Warning	LCH	Rapides, Vernon	41 min
Apr 4, 3:12 PM CDT	Severe Thunderstorm Warning	LCH	Allen, Beauregard	63 min
Apr 4, 3:21 PM CDT	Small Craft Advisory	LCH		19 hr
Apr 4, 3:42 PM CDT	Severe Thunderstorm Warning	LCH	Avoyelles, Rapides	48 min
Apr 4, 3:51 PM CDT	Severe Thunderstorm Warning	LCH	Allen, Evangeline	39 min
Apr 4, 3:56 PM CDT	Tornado Warning	LCH	Evangeline	34 min
Apr 4, 4:24 PM CDT	Severe Thunderstorm Warning	LCH	Avoyelles	22 min
Apr 4, 4:42 PM CDT	Special Weather Statement	LCH	Saint Landry	33 min
Apr 4, 5:52 PM CDT	Special Weather Statement	LCH	Iberia, Saint Martin, St. Mary	53 min
Apr 4, 6:07 PM CDT	Special Weather Statement	LCH	Cameron	38 min
Apr 4, 6:44 PM CDT	Special Weather Statement	LCH	Jefferson Davis	46 min

Nearby

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