Alert archive / Louisiana / Tornado Warnings in 2021

Tornado Warning 51, NWS Lake Charles, LA

May 17, 2021Iberia Parish, Vermilion Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at May 17, 2021, 7:46 PM CDT for Iberia Parish, Vermilion Parish, Louisiana. It was in force for 29 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
May 17, 2021, 7:46 PM CDT (00:46 UTC)
Expired
May 17, 2021, 8:15 PM CDT
In force
29 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Iberia Parish, LA, Vermilion Parish, LA

The radar

The Lake Charles radar (KLCH), 123 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 121 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 2021-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 114 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2021-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -80 square meters per square second.1939Sfc1 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
114 J/kg
Mixed-layer CIN
-166 J/kg
Mixed-layer LCL
1016 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-80 m²/s²
0-3 km storm-relative helicity
-51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

602 
WFUS54 KLCH 180046
TORLCH
LAC045-113-180115-
/O.NEW.KLCH.TO.W.0051.210518T0046Z-210518T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lake Charles LA
746 PM CDT Mon May 17 2021

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  Northwestern Iberia Parish in south central Louisiana...
  East central Vermilion Parish in southwestern Louisiana...

* Until 815 PM CDT.
    
* At 746 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Erath, or near Abbeville, moving northeast at 25
  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...
  Jefferson Island around 750 PM CDT.
  Acadiana Regional Airport and Coteau around 805 PM CDT.
  New Iberia around 810 PM 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.

&&

LAT...LON 2999 9211 3005 9200 3003 9197 3007 9195
      3007 9191 3006 9190 3007 9187 3005 9182
      2995 9175 2988 9204
TIME...MOT...LOC 0046Z 242DEG 22KT 2997 9201 

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

$$

Tingler
2 follow-up statements
576 
WWUS54 KLCH 180106
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
806 PM CDT Mon May 17 2021

LAC113-180116-
/O.CAN.KLCH.TO.W.0051.000000T0000Z-210518T0115Z/
Vermilion LA-
806 PM CDT Mon May 17 2021

...THE TORNADO WARNING FOR EAST CENTRAL VERMILION PARISH IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 2993 9197 2999 9198 3007 9195 3007 9191
      3006 9190 3006 9189 3007 9187 3004 9182
      3005 9182 2995 9175
TIME...MOT...LOC 0106Z 250DEG 14KT 3000 9194 

$$

LAC045-180115-
/O.CON.KLCH.TO.W.0051.000000T0000Z-210518T0115Z/
Iberia LA-
806 PM CDT Mon May 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHWESTERN IBERIA PARISH...
    
At 806 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Jefferson Island, or near Avery Island, moving east
at 15 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...
  Coteau around 815 PM CDT.
  Acadiana Regional Airport around 820 PM CDT.
  New Iberia around 825 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or 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 2993 9197 2999 9198 3007 9195 3007 9191
      3006 9190 3006 9189 3007 9187 3004 9182
      3005 9182 2995 9175
TIME...MOT...LOC 0106Z 250DEG 14KT 3000 9194 

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

$$

Tingler
067 
WWUS54 KLCH 180112
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
812 PM CDT Mon May 17 2021

LAC045-180122-
/O.EXP.KLCH.TO.W.0051.000000T0000Z-210518T0115Z/
Iberia LA-
812 PM CDT Mon May 17 2021

...THE TORNADO WARNING FOR NORTHWESTERN IBERIA PARISH WILL EXPIRE AT
815 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

LAT...LON 2993 9197 2999 9198 3007 9195 3007 9191
      3006 9190 3006 9189 3007 9187 3004 9182
      3005 9182 2995 9175
TIME...MOT...LOC 0112Z 242DEG 22KT 3002 9190 

$$

Tingler

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 7:01 PM CDTFlash Flood WarningLCHLafayette5 hr
May 17, 7:18 PM CDTTornado WarningLCHIberia, Lafayette, Saint Martin27 min
May 17, 7:19 PM CDTTornado WarningLCHLafayette, Vermilion26 min
May 17, 7:20 PM CDTFlash Flood WarningLCHVermilion3 hr
May 17, 7:35 PM CDTAreal Flood WarningLCHAcadia, Allen, Calcasieu, Evangeline, Jefferson Davis6 hr
May 17, 7:40 PM CDTSpecial Marine WarningLCH65 min
May 17, 8:22 PM CDTSpecial Weather StatementLCHSaint Martin38 min
May 17, 8:23 PM CDTFlash Flood Warning Considerable damage threatLCHIberia, Lafayette, Saint Martin, Vermilion3 hr
May 17, 8:33 PM CDTRiver Flood WarningLCHLafayette, Saint Landry, Saint Martin8 days
May 17, 8:33 PM CDTRiver Flood WarningLCHBeauregard, Vernon8 days
May 17, 8:33 PM CDTRiver Flood WarningLCHCalcasieu12 days
May 17, 8:33 PM CDTRiver Flood WarningLCHAcadia, Evangeline, Saint Landry5 days
May 17, 8:33 PM CDTRiver Flood WarningLCHAllen, Rapides21 days
May 17, 8:33 PM CDTRiver Flood WarningLCHAcadia, Allen, Evangeline, Jefferson Davis8 days
May 17, 8:33 PM CDTSpecial Marine WarningLCH87 min
May 17, 8:53 PM CDTSpecial Weather StatementLCHSaint Martin, St. Mary52 min
May 17, 9:49 PM CDTSpecial Weather StatementLCHIberia, St. Mary56 min
May 17, 9:54 PM CDTSpecial Marine WarningLCH96 min
May 17, 11:08 PM CDTAreal Flood WarningLCHVermilion3 hr
May 17, 11:44 PM CDTAreal Flood WarningLCHIberia, Lafayette, Saint Martin, Vermilion3 hr
May 18, 12:24 AM CDTSpecial Marine WarningLCH66 min
May 18, 1:40 AM CDTAreal Flood WarningLCHAcadia, Calcasieu, Jefferson Davis5 hr
May 18, 1:48 AM CDTSmall Craft AdvisoryLCH5 days
May 18, 2:25 AM CDTAreal Flood WarningLCHIberia, Lafayette, Saint Landry, Saint Martin, Vermilion6 hr
May 18, 2:25 AM CDTSpecial Marine WarningLCH50 min
May 18, 7:00 AM CDTAreal Flood WarningLCHCalcasieu, Jefferson Davis3 hr
May 18, 7:54 AM CDTAreal Flood WarningLCHIberia, Lafayette, Saint Martin, Vermilion2 hr
May 18, 9:47 AM CDTSpecial Marine WarningLCH58 min
May 18, 11:06 AM CDTRiver Flood WarningLCHAllen, Beauregard21 days
May 18, 11:56 AM CDTRiver Flood WarningLCHCalcasieu10 days
May 18, 1:25 PM CDTSpecial Marine WarningLCH65 min
May 18, 1:42 PM CDTCoastal Flood AdvisoryLCHCameron8 hr
May 18, 1:57 PM CDTWind AdvisoryLCHCameron, Saint Martin14 hr

Nearby

Tornado Warnings in Louisiana, 2021Every tornado warning in 2021Tornadoes in 2021

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.