Alert archive / Louisiana / Tornado Warnings in 2016

Tornado Warning 29, NWS Lake Charles, LA

November 29, 2016Vernon Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Nov 29, 2016, 6:46 PM CST for Vernon Parish, Louisiana. It was in force for 23 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 29, 2016, 6:46 PM CST (00:46 UTC)
Expired: Nov 29, 2016, 7:09 PM 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), 31 km from the middle of the area, began a volume at 00:46 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, 0.8 hours before the alert went out and 113 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: 2318 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 536 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 171 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 7.0

Open this sounding in Storm Lab

The text

As transmitted.

619 
WFUS54 KLCH 300046
TORLCH
LAC115-300130-
/O.NEW.KLCH.TO.W.0029.161130T0046Z-161130T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
646 PM CST TUE NOV 29 2016

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL VERNON PARISH IN WEST CENTRAL LOUISIANA...

* UNTIL 730 PM CST
    
* AT 645 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR NEW LLANO...OR NEAR LEESVILLE...MOVING
  NORTHEAST AT 30 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...
  FORT POLK AROUND 650 PM CST. 
  NEW LLANO AROUND 655 PM CST. 
  LEESVILLE AROUND 700 PM CST. 

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 3106 9340 3114 9344 3128 9318 3111 9308
TIME...MOT...LOC 0045Z 246DEG 25KT 3111 9336 

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

$$

K. KUYPER

1 follow-up statement

605 
WWUS54 KLCH 300109
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
709 PM CST TUE NOV 29 2016

LAC115-300119-
/O.CAN.KLCH.TO.W.0029.000000T0000Z-161130T0130Z/
VERNON LA-
709 PM CST TUE NOV 29 2016

...THE TORNADO WARNING FOR CENTRAL VERNON PARISH IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3106 9340 3114 9344 3128 9318 3111 9308
TIME...MOT...LOC 0108Z 246DEG 25KT 3118 9318 

$$

K. KUYPER

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 29, 6:24 PM CST	Special Weather Statement	LCH	Vernon	66 min
Nov 29, 9:46 PM CST	Special Weather Statement	LCH	Beauregard	59 min
Nov 29, 9:58 PM CST	Severe Thunderstorm Warning	LCH	Allen, Beauregard	38 min
Nov 29, 10:58 PM CST	Special Weather Statement	LCH	Rapides	47 min
Nov 29, 11:26 PM CST	Special Weather Statement	LCH	Calcasieu	49 min
Nov 29, 11:34 PM CST	Severe Thunderstorm Warning	LCH	Avoyelles, Evangeline, Rapides	38 min
Nov 30, 12:14 AM CST	Special Weather Statement	LCH	Evangeline	46 min
Nov 30, 12:17 AM CST	Special Weather Statement	LCH	Jefferson Davis	28 min
Nov 30, 12:18 AM CST	Special Weather Statement	LCH	Cameron	27 min
Nov 30, 12:31 AM CST	Special Marine Warning	LCH		44 min
Nov 30, 12:45 AM CST	Special Weather Statement	LCH	Acadia, Jefferson Davis	30 min
Nov 30, 12:48 AM CST	Special Weather Statement	LCH	Cameron	27 min
Nov 30, 12:52 AM CST	Special Weather Statement	LCH	Avoyelles, Evangeline	23 min
Nov 30, 12:57 AM CST	Severe Thunderstorm Warning	LCH	Avoyelles	26 min
Nov 30, 1:25 AM CST	Special Weather Statement	LCH	Saint Landry	50 min
Nov 30, 1:28 AM CST	Special Weather Statement	LCH	Cameron	47 min
Nov 30, 2:13 AM CST	Special Weather Statement	LCH	Acadia	32 min
Nov 30, 2:41 AM CST	Special Weather Statement	LCH	Acadia, Lafayette	34 min
Nov 30, 2:46 AM CST	Severe Thunderstorm Warning	LCH	Acadia, Lafayette, Saint Landry, Saint Martin, Vermilion	44 min
Nov 30, 4:03 AM CST	Special Weather Statement	LCH	Saint Martin, Vermilion	42 min

Nearby

Tornado Warnings in Louisiana, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.