Alert archive / Louisiana / Tornado Warnings in 2021

Tornado Warning 11, NWS Lake Charles, LA

April 10, 2021Avoyelles Parish, Saint Landry Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Apr 10, 2021, 1:22 AM CDT for Avoyelles Parish, Saint Landry Parish, Louisiana. It was in force for 23 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 10, 2021, 1:22 AM CDT (06:22 UTC)
Expired: Apr 10, 2021, 1:45 AM CDT
In force: 23 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Avoyelles Parish, LA, Saint Landry Parish, LA

The radar

The Ft Polk radar (KPOE), 115 km from the middle of the area, began a volume at 06:27 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 10, 1:26 AM CDT	TORNADO 1	3 W Lebeau, LA	A TEAM DOING RESEARCH WITH NSSL FOUND DAMAGE WITH THIS TORNADO.MOST OF THE DAMAGE WAS TREE DAMAGE WEST OF HWY 71 AND CROSSINGHWY 71. IT DID DESTROY A BARN BEFORE THE DAMAGE PATH WAS LOST NEAR HWY 361.
Apr 10, 1:27 AM CDT	TORNADO	3 W Lebeau, LA	TDS DECTED FROM KPOE LAST FOR AT LEAST 12 MINUTES.

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 9, 10:25 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 10, 12:16 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 6.4 hours before the alert went out and 151 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: 2773 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 733 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 149 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 7.7

Open this sounding in Storm Lab

The text

As transmitted.

461 
WFUS54 KLCH 100622
TORLCH
LAC009-097-100645-
/O.NEW.KLCH.TO.W.0011.210410T0622Z-210410T0645Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lake Charles LA
122 AM CDT Sat Apr 10 2021

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  Southeastern Avoyelles Parish in central Louisiana...
  Northeastern St. Landry Parish in central Louisiana...

* Until 145 AM CDT.
    
* At 121 AM CDT, a severe thunderstorm capable of producing a tornado
  was located near Lebeau, or 8 miles south of Morrow, moving
  northeast 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...
  Lebeau around 130 AM CDT.
  Palmetto and Big Cane around 135 AM CDT.
  Bayou Current around 145 AM CDT.

This includes Interstate 49 between mile markers 28 and 37.
 
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 3087 9180 3086 9182 3084 9180 3083 9180
      3082 9181 3081 9181 3078 9177 3076 9175
      3074 9176 3072 9174 3064 9209 3075 9217
      3097 9181
TIME...MOT...LOC 0621Z 242DEG 27KT 3071 9206 

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

$$

24

1 follow-up statement

484 
WWUS54 KLCH 100630
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
130 AM CDT Sat Apr 10 2021

LAC009-097-100645-
/O.CON.KLCH.TO.W.0011.000000T0000Z-210410T0645Z/
Avoyelles LA-St. Landry LA-
130 AM CDT Sat Apr 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 AM CDT FOR
SOUTHEASTERN AVOYELLES AND NORTHEASTERN ST. LANDRY PARISHES...
    
At 130 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Lebeau, or near Palmetto, moving northeast 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...
  Palmetto around 135 AM CDT.
  Bayou Current around 155 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.

&&

LAT...LON 3087 9180 3086 9182 3084 9180 3083 9180
      3082 9181 3081 9181 3078 9177 3076 9175
      3074 9176 3072 9174 3067 9204 3078 9211
      3097 9181
TIME...MOT...LOC 0630Z 242DEG 27KT 3074 9199 

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

$$

24

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 9:08 PM CDT	Special Weather Statement	LCH	Rapides	82 min
Apr 9, 9:24 PM CDT	Severe Thunderstorm Warning	LCH	Rapides	81 min
Apr 10, 12:28 AM CDT	Severe Thunderstorm Warning	LCH	Avoyelles, Rapides	47 min
Apr 10, 12:52 AM CDT	Special Weather Statement	LCH	Vernon	38 min
Apr 10, 12:53 AM CDT	Tornado Warning	LCH	Avoyelles, Rapides	22 min
Apr 10, 1:10 AM CDT	Tornado Warning	LCH	Avoyelles	35 min
Apr 10, 1:13 AM CDT	Severe Thunderstorm Warning	LCH	Avoyelles, Evangeline, Saint Landry	47 min
Apr 10, 1:34 AM CDT	Severe Thunderstorm Warning	LCH	Saint Landry	41 min
Apr 10, 1:40 AM CDT	Tornado Warning	LCH	Avoyelles, Saint Landry	18 min
Apr 10, 1:42 AM CDT	Tornado Warning	LCH	Saint Landry	33 min
Apr 10, 2:11 AM CDT	Tornado Warning	LCH	Saint Landry	34 min
Apr 10, 4:11 AM CDT	Severe Thunderstorm Warning	LCH	Beauregard, Calcasieu	49 min
Apr 10, 4:58 AM CDT	Special Weather Statement	LCH	Lafayette, Saint Martin, Vermilion	62 min
Apr 10, 5:00 AM CDT	Special Weather Statement	LCH	Calcasieu	60 min
Apr 10, 6:01 AM CDT	Severe Thunderstorm Warning	LCH	Calcasieu, Cameron, Jefferson Davis	29 min
Apr 10, 6:05 AM CDT	Special Weather Statement	LCH	Iberia, St. Mary, Vermilion	40 min
Apr 10, 6:51 AM CDT	Special Marine Warning	LCH		54 min
Apr 10, 6:55 AM CDT	Special Weather Statement	LCH	Vermilion	50 min
Apr 10, 10:44 AM CDT	Severe Thunderstorm Warning	LCH	St. Mary	31 min
Apr 10, 11:14 AM CDT	Severe Thunderstorm Warning	LCH	St. Mary	12 min
Apr 10, 11:56 AM CDT	River Flood Warning	LCH	Beauregard, Calcasieu	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.