Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 11, NWS Lake Charles, LA

March 23, 2021Avoyelles Parish, Evangeline Parish, Saint Landry Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 23, 2021, 7:08 AM CDT for Avoyelles Parish, Evangeline Parish, Saint Landry Parish, Louisiana. It was in force for 37 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
Mar 23, 2021, 7:08 AM CDT (12:08 UTC)
Expired
Mar 23, 2021, 7:45 AM CDT
In force
37 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Avoyelles Parish, LA, Evangeline Parish, LA, Saint Landry Parish, LA

The radar

The Ft Polk radar (KPOE), 92 km from the middle of the area, began a volume at 12:12 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

TimeReportWhereRemark
Mar 23, 7:22 AM CDTTORNADOWashington, LAAN EF-1 TORNADO TOUCHED DOWN IN THE TOWN OFWASHINGTON, RIPPING SEVERAL HOMES ROOFS AND SNAPPING THE TRUNKS OF SEVERAL TREES

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

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 0.1 hours before the alert went out and 245 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, Slidell Radar S, LA at 12:00Z on 2021-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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, Slidell Radar S, LA at 12:00Z on 2021-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 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
13 J/kg
Mixed-layer CIN
-246 J/kg
Mixed-layer LCL
759 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

693 
WUUS54 KLCH 231208
SVRLCH
LAC009-039-097-231245-
/O.NEW.KLCH.SV.W.0011.210323T1208Z-210323T1245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
708 AM CDT Tue Mar 23 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Southeastern Evangeline Parish in central Louisiana...
  South central Avoyelles Parish in central Louisiana...
  Northern St. Landry Parish in central Louisiana...

* Until 745 AM CDT.

* At 707 AM CDT, a severe thunderstorm was located near Grand
  Prairie, or near Ville Platte, moving northeast at 35 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Eunice, Ville Platte, Mamou, Palmetto, Morrow, Washington,
  Chataignier, Goudeau, Prairie Ronde, Savoy, Whiteville, Big Cane,
  Grand Prairie and Lebeau.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3048 9238 3057 9249 3096 9202 3073 9180
TIME...MOT...LOC 1207Z 240DEG 33KT 3065 9221 

HAIL...0.88IN
WIND...60MPH
 
$$

Stigger/87
1 follow-up statement
400 
WWUS54 KLCH 231226
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
726 AM CDT Tue Mar 23 2021

LAC009-039-097-231245-
/O.CON.KLCH.SV.W.0011.000000T0000Z-210323T1245Z/
Evangeline LA-Avoyelles LA-St. Landry LA-
726 AM CDT Tue Mar 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 AM CDT
FOR SOUTHEASTERN EVANGELINE...SOUTH CENTRAL AVOYELLES AND
NORTHEASTERN ST. LANDRY PARISHES...

At 726 AM CDT, a severe thunderstorm was located near Lebeau, or near
Morrow, moving northeast at 40 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Ville Platte, Palmetto, Morrow, Washington, Whiteville, Big Cane,
Goudeau, Prairie Ronde, Grand Prairie and Lebeau.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3053 9227 3067 9236 3096 9202 3073 9180
TIME...MOT...LOC 1226Z 240DEG 33KT 3074 9203 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

Stigger/87

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 23, 4:32 AM CDTSpecial Weather StatementLCHAcadia, Allen, Calcasieu, Cameron, Evangeline, Jefferson Davis and 1 more43 min
Mar 23, 5:06 AM CDTFlash Flood WarningLCHCalcasieu, Jefferson Davis84 min
Mar 23, 5:08 AM CDTFlash Flood WatchLCHAllen, Cameron, Evangeline, Lafayette, Saint Landry, Saint Martin8 hr
Mar 23, 5:17 AM CDTSpecial Weather StatementLCHAcadia, Allen, Calcasieu, Cameron, Evangeline, Jefferson Davis and 1 more43 min
Mar 23, 5:45 AM CDTFlash Flood WarningLCHAcadia, Allen, Calcasieu, Cameron, Evangeline, Jefferson Davis and 1 more2 hr
Mar 23, 6:01 AM CDTSpecial Weather StatementLCHAcadia, Allen, Calcasieu, Cameron, Evangeline, Jefferson Davis and 1 more44 min
Mar 23, 6:10 AM CDTTornado WarningLCHAcadia, Allen, Evangeline, Jefferson Davis, Saint Landry35 min
Mar 23, 6:36 AM CDTTornado WarningLCHSaint Landry24 min
Mar 23, 6:45 AM CDTSpecial Marine WarningLCH60 min
Mar 23, 6:51 AM CDTSevere Thunderstorm WarningLCHJefferson Davis24 min
Mar 23, 7:19 AM CDTSevere Thunderstorm WarningLCHCameron26 min
Mar 23, 7:24 AM CDTSevere Thunderstorm WarningLCHAllen, Evangeline21 min
Mar 23, 7:30 AM CDTSpecial Marine WarningLCH30 min
Mar 23, 7:43 AM CDTFlash Flood WarningLCHAcadia, Allen, Avoyelles, Calcasieu, Cameron, Evangeline and 3 more2 hr
Mar 23, 7:43 AM CDTSevere Thunderstorm WarningLCHCameron62 min
Mar 23, 7:45 AM CDTSevere Thunderstorm WarningLCHAvoyelles, Saint Landry30 min
Mar 23, 8:16 AM CDTTornado WarningLCHSaint Landry29 min
Mar 23, 8:24 AM CDTTornado WarningLCHCameron, Vermilion36 min
Mar 23, 8:45 AM CDTSevere Thunderstorm WarningLCHSaint Landry, Saint Martin45 min
Mar 23, 8:53 AM CDTTornado WarningLCHAcadia, Lafayette, Vermilion37 min
Mar 23, 9:25 AM CDTSevere Thunderstorm WarningLCHIberia, Lafayette, Saint Martin, Vermilion50 min
Mar 23, 9:48 AM CDTAreal Flood WarningLCHAcadia, Allen, Avoyelles, Calcasieu, Cameron, Evangeline and 2 more3 hr
Mar 23, 10:13 AM CDTSevere Thunderstorm WarningLCHIberia, Saint Martin32 min
Mar 23, 10:44 AM CDTSpecial Marine WarningLCH16 min
Mar 23, 11:58 AM CDTRiver Flood WarningLCHCalcasieu21 days
Mar 23, 11:58 AM CDTRiver Flood WarningLCHAcadia, Evangeline, Saint Landry4 days
Mar 23, 11:58 AM CDTRiver Flood WarningLCHCalcasieu5 days
Mar 23, 12:08 PM CDTSpecial Marine WarningLCH52 min
Mar 23, 3:19 PM CDTFlash Flood WarningLCHIberia, St. Mary116 min
Mar 23, 3:43 PM CDTSmall Craft AdvisoryLCH12 hr
Mar 23, 6:00 PM CDTSpecial Marine WarningLCH90 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.