Alert archive / Louisiana / Tornado Warnings in 2019

Tornado Warning 9, NWS Lake Charles, LA

April 18, 2019Vernon Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Apr 18, 2019, 8:11 AM CDT for Vernon Parish, Louisiana. It was in force for 34 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
Apr 18, 2019, 8:11 AM CDT (13:11 UTC)
Expired
Apr 18, 2019, 8:45 AM CDT
In force
34 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Vernon Parish, LA

The radar

The Ft Polk radar (KPOE), 22 km from the middle of the area, began a volume at 13:11 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 12:00Z, 1.2 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 2019-04-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1465 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 2019-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 204 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
1465 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
507 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
204 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
1.6
Supercell composite
11.5

Open this sounding in Storm Lab

The text

As transmitted.

800 
WFUS54 KLCH 181311
TORLCH
LAC115-181345-
/O.NEW.KLCH.TO.W.0009.190418T1311Z-190418T1345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lake Charles LA
811 AM CDT Thu Apr 18 2019

The National Weather Service in Lake Charles has issued a

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

* Until 845 AM CDT.
    
* At 810 AM CDT, a severe thunderstorm capable of producing a tornado
  was located near Slagle, moving northeast at 45 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...
  Kurthwood around 820 AM CDT.
  Hutton around 825 AM CDT.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3136 9303 3136 9299 3134 9298 3116 9323
      3121 9332 3137 9321 3137 9303
TIME...MOT...LOC 1310Z 218DEG 40KT 3124 9320 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

RM12
2 follow-up statements
544 
WWUS54 KLCH 181316
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
816 AM CDT Thu Apr 18 2019

LAC115-181345-
/O.CON.KLCH.TO.W.0009.000000T0000Z-190418T1345Z/
Vernon LA-
816 AM CDT Thu Apr 18 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 AM CDT FOR NORTH
CENTRAL VERNON PARISH...
    
At 816 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Kurthwood, or near Slagle, moving northeast at 45
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 tornadic thunderstorm will remain over mainly rural areas of
north central Vernon Parish.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3133 9306 3123 9316 3126 9322 3137 9319
      3137 9303
TIME...MOT...LOC 1316Z 218DEG 40KT 3130 9315 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

RM12
000 
WWUS54 KLCH 181337
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
837 AM CDT Thu Apr 18 2019

LAC115-181347-
/O.EXP.KLCH.TO.W.0009.000000T0000Z-190418T1345Z/
Vernon LA-
837 AM CDT Thu Apr 18 2019

...THE TORNADO WARNING FOR NORTH CENTRAL VERNON PARISH WILL EXPIRE AT
845 AM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3133 9306 3123 9316 3126 9322 3137 9319
      3137 9303
TIME...MOT...LOC 1337Z 218DEG 40KT 3147 9299 

$$

RM12

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 3:30 AM CDTWind AdvisoryLCHLafayette, Saint Martin12 hr
Apr 18, 3:35 AM CDTGale WarningLCH12 hr
Apr 18, 7:52 AM CDTSpecial Weather StatementLCHVernon53 min
Apr 18, 9:27 AM CDTSpecial Weather StatementLCHAllen33 min
Apr 18, 9:32 AM CDTSpecial Weather StatementLCHCameron, Jefferson Davis43 min
Apr 18, 9:41 AM CDTSmall Craft AdvisoryLCH38 hr
Apr 18, 9:45 AM CDTSpecial Weather StatementLCHJefferson Davis45 min
Apr 18, 9:53 AM CDTSpecial Weather StatementLCHSaint Martin52 min
Apr 18, 9:55 AM CDTSpecial Marine WarningLCH35 min
Apr 18, 10:08 AM CDTSpecial Weather StatementLCHAcadia, Vermilion52 min
Apr 18, 10:15 AM CDTSpecial Marine WarningLCH2 hr
Apr 18, 10:19 AM CDTSpecial Weather StatementLCHAcadia, Cameron, Jefferson Davis56 min
Apr 18, 10:34 AM CDTSpecial Weather StatementLCHAllen, Evangeline, Rapides41 min
Apr 18, 11:00 AM CDTSevere Thunderstorm WarningLCHAcadia, Allen, Avoyelles, Evangeline, Rapides, Saint Landry45 min
Apr 18, 11:04 AM CDTSpecial Weather StatementLCHLafayette41 min
Apr 18, 11:05 AM CDTFlash Flood WatchLCHAllen, Avoyelles, Cameron, Evangeline, Lafayette, Rapides and 2 more8 hr
Apr 18, 11:06 AM CDTTornado WarningLCHAvoyelles, Evangeline, Saint Landry24 min
Apr 18, 11:12 AM CDTSpecial Weather StatementLCHAvoyelles33 min
Apr 18, 11:25 AM CDTAreal Flood AdvisoryLCHAcadia, Jefferson Davis3 hr
Apr 18, 11:34 AM CDTAreal Flood AdvisoryLCHRapides3 hr
Apr 18, 11:40 AM CDTSpecial Weather StatementLCHAvoyelles, Lafayette, Saint Landry65 min
Apr 18, 11:46 AM CDTSpecial Weather StatementLCHCalcasieu44 min
Apr 18, 12:02 PM CDTFlash Flood WarningLCHAcadia, Evangeline, Jefferson Davis, Saint Landry3 hr
Apr 18, 12:03 PM CDTSevere Thunderstorm WarningLCHAcadia, Avoyelles, Lafayette, Saint Landry42 min
Apr 18, 12:11 PM CDTAreal Flood AdvisoryLCHAvoyelles3 hr
Apr 18, 12:16 PM CDTSpecial Weather StatementLCHCameron44 min
Apr 18, 12:27 PM CDTSpecial Marine WarningLCH63 min
Apr 18, 12:35 PM CDTFlash Flood WarningLCHAvoyelles2 hr
Apr 18, 12:39 PM CDTSpecial Marine WarningLCH21 min
Apr 18, 12:53 PM CDTSpecial Weather StatementLCHLafayette, Saint Martin52 min
Apr 18, 12:58 PM CDTAreal Flood AdvisoryLCHLafayette, Saint Landry, Saint Martin, Vermilion2 hr
Apr 18, 12:58 PM CDTSpecial Weather StatementLCHVermilion47 min
Apr 18, 1:52 PM CDTSpecial Weather StatementLCHLafayette, Saint Martin, Vermilion38 min
Apr 18, 1:57 PM CDTFlash Flood WarningLCHLafayette, Saint Landry, Saint Martin3 hr
Apr 18, 2:14 PM CDTSpecial Weather StatementLCHSt. Mary46 min
Apr 18, 2:32 PM CDTAreal Flood AdvisoryLCHIberia, Vermilion118 min
Apr 18, 3:25 PM CDTRiver Flood WarningLCHLafayette, Vermilion23 hr
Apr 18, 3:47 PM CDTAreal Flood AdvisoryLCHIberia, Saint Martin, St. Mary58 min
Apr 18, 4:18 PM CDTGale WarningLCH18 hr
Apr 18, 5:01 PM CDTAreal Flood AdvisoryLCHIberia, Lafayette, Saint Martin119 min

Nearby

Tornado Warnings in Louisiana, 2019Every tornado warning in 2019Tornadoes in 2019

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.