Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 31, NWS Lake Charles, LA

April 10, 2021Beauregard Parish, Calcasieu Parish, Louisiana; Jasper County, Newton County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 10, 2021, 4:11 AM CDT for Beauregard Parish, Calcasieu Parish, Louisiana; Jasper County, Newton County, Texas. It was in force for 49 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
Apr 10, 2021, 4:11 AM CDT (09:11 UTC)
Expired
Apr 10, 2021, 5:00 AM CDT
In force
49 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Beauregard Parish, LA, Calcasieu Parish, LA, Jasper County, TX, Newton County, TX

The radar

The Lake Charles radar (KLCH), 59 km from the middle of the area, began a volume at 09:14 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, 9.2 hours before the alert went out and 61 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 2021-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2773 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 2021-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.1939587897Sfc1 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
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.

960 
WUUS54 KLCH 100911
SVRLCH
LAC011-019-TXC241-351-101000-
/O.NEW.KLCH.SV.W.0031.210410T0911Z-210410T1000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
411 AM CDT Sat Apr 10 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Southwestern Beauregard Parish in southwestern Louisiana...
  Northwestern Calcasieu Parish in southwestern Louisiana...
  Southwestern Newton County in southeastern Texas...
  Southeastern Jasper County in southeastern Texas...

* Until 500 AM CDT.

* At 411 AM CDT, a severe thunderstorm was located near Gist, or 7
  miles southeast of Buna, moving east at 20 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Deweyville, Starks, Wrights Settlement, Devils Pocket, Lunita,
  Hartburg and Edgerly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3029 9397 3045 9396 3050 9349 3021 9350
TIME...MOT...LOC 0911Z 275DEG 19KT 3035 9389 

HAIL...1.00IN
WIND...60MPH
 
$$

24
1 follow-up statement
425 
WWUS54 KLCH 100930
SVSLCH

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

TXC241-100939-
/O.CAN.KLCH.SV.W.0031.000000T0000Z-210410T1000Z/
Jasper TX-
430 AM CDT Sat Apr 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JASPER COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3028 9389 3046 9388 3050 9349 3021 9350
TIME...MOT...LOC 0929Z 275DEG 19KT 3034 9378 

$$

LAC011-019-TXC351-101000-
/O.CON.KLCH.SV.W.0031.000000T0000Z-210410T1000Z/
Beauregard LA-Calcasieu LA-Newton TX-
430 AM CDT Sat Apr 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 AM CDT
FOR SOUTHWESTERN BEAUREGARD...NORTHWESTERN CALCASIEU PARISHES IN
SOUTHWESTERN LOUISIANA AND SOUTHWESTERN NEWTON COUNTIES...

At 429 AM CDT, a severe thunderstorm was located over Deweyville,
moving east at 20 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Deweyville, Starks, Wrights Settlement, Devils Pocket, Lunita,
Hartburg and Edgerly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3028 9389 3046 9388 3050 9349 3021 9350
TIME...MOT...LOC 0929Z 275DEG 19KT 3034 9378 

HAIL...1.00IN
WIND...60MPH
 
$$

24

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 9:08 PM CDTSpecial Weather StatementLCHRapides82 min
Apr 9, 9:24 PM CDTSevere Thunderstorm WarningLCHRapides81 min
Apr 10, 12:28 AM CDTSevere Thunderstorm WarningLCHAvoyelles, Rapides47 min
Apr 10, 12:52 AM CDTSpecial Weather StatementLCHVernon38 min
Apr 10, 12:53 AM CDTTornado WarningLCHAvoyelles, Rapides22 min
Apr 10, 1:10 AM CDTTornado WarningLCHAvoyelles35 min
Apr 10, 1:13 AM CDTSevere Thunderstorm WarningLCHAvoyelles, Evangeline, Saint Landry47 min
Apr 10, 1:22 AM CDTTornado WarningLCHAvoyelles, Saint Landry23 min
Apr 10, 1:34 AM CDTSevere Thunderstorm WarningLCHSaint Landry41 min
Apr 10, 1:40 AM CDTTornado WarningLCHAvoyelles, Saint Landry18 min
Apr 10, 1:42 AM CDTTornado WarningLCHSaint Landry33 min
Apr 10, 2:11 AM CDTTornado WarningLCHSaint Landry34 min
Apr 10, 4:58 AM CDTSpecial Weather StatementLCHLafayette, Saint Martin, Vermilion62 min
Apr 10, 5:00 AM CDTSpecial Weather StatementLCHCalcasieu60 min
Apr 10, 6:01 AM CDTSevere Thunderstorm WarningLCHCalcasieu, Cameron, Jefferson Davis29 min
Apr 10, 6:05 AM CDTSpecial Weather StatementLCHIberia, St. Mary, Vermilion40 min
Apr 10, 6:51 AM CDTSpecial Marine WarningLCH54 min
Apr 10, 6:55 AM CDTSpecial Weather StatementLCHVermilion50 min
Apr 10, 10:44 AM CDTSevere Thunderstorm WarningLCHSt. Mary31 min
Apr 10, 11:14 AM CDTSevere Thunderstorm WarningLCHSt. Mary12 min
Apr 10, 11:56 AM CDTRiver Flood WarningLCHBeauregard, Calcasieu3 hr
Apr 10, 12:55 AM CDTSevere Thunderstorm WarningLCHJasper, Newton15 min
Apr 10, 3:34 AM CDTSevere Thunderstorm WarningLCHJasper, Newton41 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2021Severe Thunderstorm Warnings in Texas, 2021Every severe thunderstorm warning 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.