Alert archive / Louisiana / Tornado Warnings in 2021

Tornado Warning 8, NWS Lake Charles, LA

April 7, 2021Avoyelles Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Apr 7, 2021, 10:11 PM CDT for Avoyelles Parish, Louisiana. It was in force for 19 min. 2 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 7, 2021, 10:11 PM CDT (03:11 UTC)
Expired: Apr 7, 2021, 10:30 PM CDT
In force: 19 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Avoyelles Parish, LA

The radar

The Ft Polk radar (KPOE), 118 km from the middle of the area, began a volume at 03:11 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.

What was reported inside it

Time	Report	Where	Remark
Apr 7, 10:16 PM CDT	TSTM WND DMG	2 Ese Bordelonville, LA	AN EF1 TORNADO TOUCHED DOWN ALONG HWY 451 AND PETELABORDE RD. ONE HOME LOST ITS ROOF. SEVERAL BARNS AND OUTBUILDINGS LOST ROOFS. SEVERAL TREES WERE SNAPPED OR UPROOTED.
Apr 7, 10:17 PM CDT	TSTM WND DMG	2 Se Bordelonville, LA	ROOF OFF OF A BUILDING ON PETE LABORDE RD NEAR BORDELONVILLE. THIS WAS POSSIBLY DUE TO A TORNADO.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 3.2 hours before the alert went out and 178 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: 1905 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 549 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 204 m²/s²
0-3 km storm-relative helicity: 210 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 12.6

Open this sounding in Storm Lab

The text

As transmitted.

424 
WFUS54 KLCH 080311
TORLCH
LAC009-080330-
/O.NEW.KLCH.TO.W.0008.210408T0311Z-210408T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lake Charles LA
1011 PM CDT Wed Apr 7 2021

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  East central Avoyelles Parish in central Louisiana...

* Until 1030 PM CDT.
    
* At 1011 PM CDT, a severe thunderstorm capable of producing a
  tornado was located over Bordelonville, moving east at 30 mph.

  HAZARD...Tornado and quarter size hail.

  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...
  Big Bend around 1020 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Hamburg.

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 3119 9168 3117 9168 3116 9170 3114 9172
      3112 9172 3111 9170 3109 9172 3108 9171
      3106 9171 3099 9178 3101 9195 3115 9194
      3120 9169
TIME...MOT...LOC 0311Z 272DEG 25KT 3110 9187 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

24

1 follow-up statement

175 
WWUS54 KLCH 080324
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
1024 PM CDT Wed Apr 7 2021

LAC009-080334-
/O.EXP.KLCH.TO.W.0008.000000T0000Z-210408T0330Z/
Avoyelles LA-
1024 PM CDT Wed Apr 7 2021

...THE TORNADO WARNING FOR EAST CENTRAL AVOYELLES PARISH WILL EXPIRE
AT 1030 PM CDT...
        
The storm which prompted the warning will be moving out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3119 9168 3117 9168 3116 9170 3114 9172
      3112 9172 3111 9170 3109 9172 3108 9171
      3106 9171 3099 9178 3101 9195 3115 9194
      3120 9169
TIME...MOT...LOC 0324Z 272DEG 25KT 3110 9179 

$$

24

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 7:07 PM CDT	Special Weather Statement	LCH	Vernon	38 min
Apr 7, 7:53 PM CDT	Severe Thunderstorm Warning	LCH	Vernon	16 min
Apr 7, 8:17 PM CDT	Special Weather Statement	LCH	Vernon	43 min
Apr 7, 8:33 PM CDT	Special Weather Statement	LCH	Rapides	42 min
Apr 7, 9:01 PM CDT	Severe Thunderstorm Warning	LCH	Avoyelles, Rapides	44 min
Apr 7, 9:11 PM CDT	Tornado Warning	LCH	Avoyelles, Rapides	19 min
Apr 7, 9:33 PM CDT	Special Weather Statement	LCH	Allen, Beauregard, Evangeline	42 min
Apr 7, 9:37 PM CDT	Severe Thunderstorm Warning	LCH	Avoyelles	38 min
Apr 7, 9:44 PM CDT	Tornado Warning	LCH	Avoyelles	31 min
Apr 7, 11:39 PM CDT	Special Weather Statement	LCH	Saint Landry	51 min
Apr 8, 12:31 AM CDT	Severe Thunderstorm Warning	LCH	Saint Landry	16 min
Apr 8, 12:39 AM CDT	Special Weather Statement	LCH	Lafayette	36 min
Apr 8, 6:22 AM CDT	Dense Fog Advisory	LCH	Avoyelles, Rapides	3 hr

Nearby

Tornado Warnings in Louisiana, 2021 Every tornado warning in 2021 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.