Alert archive / Louisiana / Tornado Warnings in 2020

Tornado Warning 46, NWS Lake Charles, LA

August 26, 2020Avoyelles Parish, Evangeline Parish, Rapides Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Aug 26, 2020, 3:27 PM CDT for Avoyelles Parish, Evangeline Parish, Rapides Parish, Louisiana. It was in force for 18 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
Aug 26, 2020, 3:27 PM CDT (20:27 UTC)
Expired
Aug 26, 2020, 3:45 PM CDT
In force
18 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Avoyelles Parish, LA, Evangeline Parish, LA, Rapides Parish, LA

The radar

The Ft Polk radar (KPOE), 60 km from the middle of the area, began a volume at 20:29 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 26, 2:41 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.5 hours before the alert went out and 122 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 2020-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1484 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 2020-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 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
1484 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
605 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
160 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.3

Open this sounding in Storm Lab

The text

As transmitted.

468 
WFUS54 KLCH 262027
TORLCH
LAC009-039-079-262045-
/O.NEW.KLCH.TO.W.0046.200826T2027Z-200826T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
327 PM CDT Wed Aug 26 2020

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  South central Rapides Parish in central Louisiana...
  Northern Evangeline Parish in central Louisiana...
  Southwestern Avoyelles Parish in central Louisiana...

* Until 345 PM CDT.
    
* At 327 PM CDT, a severe thunderstorm capable of producing a tornado
  was located NEAR Turkey Creek, moving northwest at 40 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...
  Glenmora around 345 PM CDT.

Other locations impacted by this tornadic thunderstorm include Union
Hill, Forest Hill, Mcnary, Woodworth and St. Landry.

This includes Interstate 49 between mile markers 45 and 70.
 
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 3092 9216 3075 9230 3101 9276 3122 9257
TIME...MOT...LOC 2027Z 127DEG 34KT 3092 9237 

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

$$

Hallman
1 follow-up statement
193 
WWUS54 KLCH 262044
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
344 PM CDT Wed Aug 26 2020

LAC009-039-079-262052-
/O.EXP.KLCH.TO.W.0046.000000T0000Z-200826T2045Z/
Rapides LA-Evangeline LA-Avoyelles LA-
344 PM CDT Wed Aug 26 2020

...THE TORNADO WARNING FOR SOUTH CENTRAL RAPIDES...NORTHERN
EVANGELINE AND SOUTHWESTERN AVOYELLES PARISHES WILL EXPIRE AT 345 PM
CDT...
                
The storm which prompted the warning has weakened below severe
limits. Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 900 PM CDT for central
Louisiana.

LAT...LON 3092 9216 3075 9230 3101 9276 3122 9257
TIME...MOT...LOC 2042Z 127DEG 34KT 3099 9248 

$$

Hallman

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 10:13 AM CDTSpecial Marine WarningLCH2 hr
Aug 26, 10:20 AM CDTSpecial Weather StatementLCHCameron, Iberia, Lafayette, Saint Martin, St. Mary, Vermilion70 min
Aug 26, 11:29 AM CDTSpecial Weather StatementLCHCameron, Iberia, St. Mary, Vermilion61 min
Aug 26, 12:14 PM CDTSpecial Weather StatementLCHCalcasieu, Cameron91 min
Aug 26, 12:30 PM CDTSevere Thunderstorm WarningLCHBeauregard, Calcasieu, Cameron, Jefferson Davis60 min
Aug 26, 12:46 PM CDTSpecial Weather StatementLCHAcadia, Cameron, Iberia, Jefferson Davis, St. Mary, Vermilion44 min
Aug 26, 1:10 PM CDTTornado WarningLCHAcadia, Cameron, Jefferson Davis, Vermilion20 min
Aug 26, 2:08 PM CDTTornado WarningLCHAcadia22 min
Aug 26, 2:28 PM CDTTornado WarningLCHAcadia, Allen, Evangeline, Jefferson Davis14 min
Aug 26, 3:11 PM CDTTornado WarningLCHAvoyelles, Evangeline, Rapides, Saint Landry19 min
Aug 26, 3:18 PM CDTTornado WarningLCHBeauregard27 min
Aug 26, 3:37 PM CDTTornado WarningLCHVernon23 min
Aug 26, 4:18 PM CDTSpecial Weather StatementLCHAvoyelles, Rapides, Vernon42 min
Aug 26, 4:50 PM CDTSpecial Marine WarningLCH25 min

Nearby

Tornado Warnings in Louisiana, 2020Every tornado warning in 2020Tornadoes in 2020

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.