Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 62, NWS Lake Charles, LA

April 23, 2021Allen Parish, Beauregard Parish, Vernon Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 23, 2021, 9:43 PM CDT for Allen Parish, Beauregard Parish, Vernon Parish, Louisiana. It was in force for 13 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 23, 2021, 9:43 PM CDT (02:43 UTC)
Expired
Apr 23, 2021, 9:56 PM CDT
In force
13 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Hail
1.25 in
Wind
70.0 mph

Counties Allen Parish, LA, Beauregard Parish, LA, Vernon Parish, LA

The radar

The Ft Polk radar (KPOE), 34 km from the middle of the area, began a volume at 02:47 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
Apr 23, 8:30 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 2.7 hours before the alert went out and 89 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 2021-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 865 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 00:00Z on 2021-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 383 square meters per square second.1939587897117Sfc1 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
865 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
546 m above ground
0-6 km bulk shear
87 kt
0-1 km storm-relative helicity
383 m²/s²
0-3 km storm-relative helicity
442 m²/s²
Significant tornado parameter
2.4
Supercell composite
10.3

Open this sounding in Storm Lab

The text

As transmitted.

842 
WUUS54 KLCH 240243
SVRLCH
LAC003-011-115-240315-
/O.NEW.KLCH.SV.W.0062.210424T0243Z-210424T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
943 PM CDT Fri Apr 23 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Northeastern Beauregard Parish in southwestern Louisiana...
  Southeastern Vernon Parish in west central Louisiana...
  North central Allen Parish in southwestern Louisiana...

* Until 1015 PM CDT.

* At 942 PM CDT, a severe thunderstorm was located over Grant, or
  near Mittie, moving east at 50 mph.

  HAZARD...70 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Locations impacted include...
  Elizabeth, Sugartown, Mittie and Grant. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 400 AM CDT for central,
southwestern and west central Louisiana.

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

&&

LAT...LON 3095 9282 3089 9282 3089 9279 3078 9272
      3066 9303 3083 9309 3096 9283
TIME...MOT...LOC 0242Z 253DEG 44KT 3080 9291 

HAIL...1.25IN
WIND...70MPH
 
$$

Stigger/87
1 follow-up statement
478 
WWUS54 KLCH 240256
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
956 PM CDT Fri Apr 23 2021

LAC003-011-115-240306-
/O.CAN.KLCH.SV.W.0062.000000T0000Z-210424T0315Z/
Beauregard LA-Vernon LA-Allen LA-
956 PM CDT Fri Apr 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BEAUREGARD...
SOUTHEASTERN VERNON AND NORTH CENTRAL ALLEN PARISHES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 400 AM CDT for central,
southwestern and west central Louisiana.

LAT...LON 3095 9282 3089 9282 3089 9279 3078 9272
      3066 9303 3083 9309 3096 9283
TIME...MOT...LOC 0255Z 253DEG 44KT 3085 9272 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 23, 7:15 PM CDTSevere Thunderstorm WarningLCHVernon60 min
Apr 23, 7:35 PM CDTTornado WarningLCHVernon25 min
Apr 23, 7:45 PM CDTSevere Thunderstorm WarningLCHBeauregard22 min
Apr 23, 7:57 PM CDTTornado WarningLCHBeauregard33 min
Apr 23, 8:00 PM CDTSevere Thunderstorm WarningLCHRapides, Vernon60 min
Apr 23, 8:25 PM CDTSevere Thunderstorm WarningLCHAvoyelles, Rapides1 min
Apr 23, 8:26 PM CDTTornado WarningLCHRapides, Vernon34 min
Apr 23, 8:29 PM CDTTornado WarningLCHBeauregard31 min
Apr 23, 8:51 PM CDTRiver Flood WarningLCHAllen21 days
Apr 23, 8:51 PM CDTRiver Flood WarningLCHAllen, Rapides21 days
Apr 23, 8:51 PM CDTRiver Flood WarningLCHAcadia, Evangeline, Saint Landry40 hr
Apr 23, 8:51 PM CDTRiver Flood WarningLCHAllen, Beauregard5 days
Apr 23, 8:51 PM CDTRiver Flood WarningLCHAllen, Beauregard4 days
Apr 23, 8:51 PM CDTRiver Flood WarningLCHAcadia, Allen, Evangeline, Jefferson Davis21 days
Apr 23, 8:51 PM CDTRiver Flood WarningLCHAllen, Calcasieu, Jefferson Davis21 days
Apr 23, 9:00 PM CDTSevere Thunderstorm WarningLCHAvoyelles, Rapides60 min
Apr 23, 9:00 PM CDTSevere Thunderstorm WarningLCHAllen, Beauregard, Evangeline, Rapides, Vernon14 min
Apr 23, 9:34 PM CDTSevere Thunderstorm WarningLCHAllen, Rapides26 min
Apr 23, 9:57 PM CDTSevere Thunderstorm WarningLCHAllen, Evangeline33 min
Apr 23, 10:19 PM CDTSevere Thunderstorm WarningLCHAvoyelles, Evangeline, Rapides, Saint Landry41 min
Apr 23, 10:58 PM CDTSevere Thunderstorm WarningLCHAvoyelles, Evangeline, Saint Landry46 min
Apr 23, 11:01 PM CDTSpecial Weather StatementLCHJefferson Davis44 min
Apr 23, 11:12 PM CDTSpecial Weather StatementLCHBeauregard33 min
Apr 23, 11:28 PM CDTSpecial Weather StatementLCHCameron17 min
Apr 23, 11:41 PM CDTSpecial Weather StatementLCHAcadia34 min
Apr 23, 11:50 PM CDTSpecial Weather StatementLCHCameron, Jefferson Davis25 min
Apr 24, 12:29 AM CDTSpecial Marine WarningLCH61 min
Apr 24, 12:36 AM CDTSpecial Weather StatementLCHAcadia, Lafayette, Saint Landry54 min
Apr 24, 1:26 AM CDTSpecial Marine WarningLCH64 min
Apr 24, 1:31 AM CDTSpecial Weather StatementLCHCameron, Vermilion44 min
Apr 24, 1:59 AM CDTSevere Thunderstorm WarningLCHCameron, Iberia, Lafayette, Saint Martin, St. Mary, Vermilion61 min
Apr 24, 2:00 AM CDTSpecial Marine WarningLCH60 min
Apr 24, 2:26 AM CDTSpecial Marine WarningLCH64 min
Apr 24, 2:52 AM CDTSevere Thunderstorm WarningLCHIberia, Saint Martin, St. Mary53 min
Apr 24, 2:54 AM CDTSpecial Marine WarningLCH36 min
Apr 24, 2:58 AM CDTRiver Flood WarningLCHLafayette, Saint Martin, Vermilion58 hr
Apr 24, 2:58 AM CDTRiver Flood WarningLCHAcadia, Jefferson Davis, Vermilion21 days

Nearby

Severe Thunderstorm Warnings in Louisiana, 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.