Alert archive / Louisiana / Tornado Warnings in 2021

Tornado Warning 13, NWS Lake Charles, LA

April 10, 2021Saint Landry Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Apr 10, 2021, 1:42 AM CDT for Saint Landry Parish, Louisiana. It was in force for 33 min. 1 report 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, 1:42 AM CDT (06:42 UTC)
Expired: Apr 10, 2021, 2:15 AM CDT
In force: 33 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

County Saint Landry Parish, LA

The radar

The Ft Polk radar (KPOE), 109 km from the middle of the area, began a volume at 06:40 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, 2:06 AM CDT	TORNADO 3	5 Sw Palmetto, LA	* 1 FATAL, 7 INJ * A STRONG TORNADO TOUCHED DOWN ON BOLDEN ROAD, DESTROYING SEVERAL HOMES. SINGLE WIDE MOBILE HOME THAT WAS TIED DOWN ROLLED NUMEROUS TIMES OVER 320 YARDS. ONE MAN DIED IN THIS HOME. DOUBLE WIDE MOBILE HOME NEXT DOOR ROLLED OVER 100 YARDS.

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, 6.7 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-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.

738 
WFUS54 KLCH 100642
TORLCH
LAC097-100715-
/O.NEW.KLCH.TO.W.0013.210410T0642Z-210410T0715Z/

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

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  Central St. Landry Parish in central Louisiana...

* Until 215 AM CDT.
    
* At 141 AM CDT, a severe thunderstorm capable of producing a tornado
  was located over Prairie Ronde, or near Opelousas, moving northeast
  at 30 mph.

  HAZARD...Tornado and ping pong ball 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...
  Opelousas around 150 AM CDT.
  Washington around 200 AM CDT.
  Port Barre around 205 AM CDT.
  Palmetto around 215 AM CDT.

This includes Interstate 49 between mile markers 18 and 29.
 
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 3052 9176 3050 9222 3057 9224 3057 9221
      3061 9221 3063 9220 3075 9182
TIME...MOT...LOC 0641Z 242DEG 26KT 3056 9218 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

K. Kuyper

1 follow-up statement

482 
WWUS54 KLCH 100702
SVSLCH

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

LAC097-100715-
/O.CON.KLCH.TO.W.0013.000000T0000Z-210410T0715Z/
St. Landry LA-
202 AM CDT Sat Apr 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 AM CDT FOR
NORTHEASTERN ST. LANDRY PARISH...
    
At 202 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Washington, or 7 miles southwest of Palmetto, moving
northeast at 30 mph.

HAZARD...Tornado and ping pong ball 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 220 AM CDT.

This includes Interstate 49 between mile markers 23 and 29.
 
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 3057 9177 3057 9206 3061 9212 3065 9213
      3075 9182
TIME...MOT...LOC 0702Z 222DEG 24KT 3065 9202 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

K. Kuyper

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, 1:22 AM CDT	Tornado Warning	LCH	Avoyelles, Saint Landry	23 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, 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.