Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 66, NWS Lake Charles, LA

April 24, 20216 parishes in Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 24, 2021, 1:59 AM CDT for 6 parishes in Louisiana. It was in force for 61 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 24, 2021, 1:59 AM CDT (06:59 UTC)
Expired
Apr 24, 2021, 3:00 AM CDT
In force
61 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Cameron Parish, LA, Iberia Parish, LA, Lafayette Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Vermilion Parish, LA

The radar

The Lake Charles radar (KLCH), 129 km from the middle of the area, began a volume at 06:59 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
Apr 24, 2:14 AM CDTTSTM WND GST 634 Wnw New Iberia, LAMEASURED AT KARA ASOS

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

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 7.0 hours before the alert went out and 128 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°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 2021-04-24The 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.

250 
WUUS54 KLCH 240659
SVRLCH
LAC023-045-055-099-101-113-240800-
/O.NEW.KLCH.SV.W.0066.210424T0659Z-210424T0800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
159 AM CDT Sat Apr 24 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Iberia Parish in south central Louisiana...
  Southeastern Cameron Parish in southwestern Louisiana...
  Southeastern Lafayette Parish in south central Louisiana...
  Northwestern St. Mary Parish in south central Louisiana...
  Vermilion Parish in southwestern Louisiana...
  West central St. Martin Parish in south central Louisiana...

* Until 300 AM CDT.

* At 158 AM CDT, a severe thunderstorm was located 11 miles northeast
  of Rockefeller Wildlife Range, moving east at 65 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  New Iberia, Abbeville, Jeanerette, Kaplan, Freshwater City, Forked
  Island, Intracoastal City, Cypremort Point, Pecan Island, Avery
  Island, Erath, Delcambre, Loreauville, Lydia, Acadiana Regional
  Airport, Jefferson Island, Sorrel, Coteau, Henry and Cade.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2948 9184 2953 9197 2958 9203 2962 9202
      2962 9204 2960 9207 2952 9198 2958 9205
      2958 9215 2953 9231 2962 9275 2994 9278
      3015 9154 2963 9160 2962 9166 2952 9177
      2949 9177
TIME...MOT...LOC 0658Z 258DEG 56KT 2982 9265 

HAIL...<.75IN
WIND...70MPH
 
$$

Brazzell
2 follow-up statements
541 
WWUS54 KLCH 240713
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
213 AM CDT Sat Apr 24 2021

LAC023-240723-
/O.CAN.KLCH.SV.W.0066.000000T0000Z-210424T0800Z/
Cameron LA-
213 AM CDT Sat Apr 24 2021

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

LAT...LON 2948 9184 2953 9197 2958 9203 2962 9202
      2962 9204 2960 9207 2952 9198 2958 9205
      2958 9215 2953 9231 2959 9260 2997 9260
      3015 9154 2963 9160 2962 9166 2952 9177
      2949 9177
TIME...MOT...LOC 0713Z 258DEG 56KT 2987 9239 

$$

LAC045-055-099-101-113-240800-
/O.CON.KLCH.SV.W.0066.000000T0000Z-210424T0800Z/
Iberia LA-Lafayette LA-St. Mary LA-Vermilion LA-St. Martin LA-
213 AM CDT Sat Apr 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 AM CDT
FOR IBERIA...SOUTHEASTERN LAFAYETTE...NORTHWESTERN ST. MARY...
VERMILION AND WEST CENTRAL ST. MARTIN PARISHES...

At 213 AM CDT, a severe thunderstorm was located near Forked Island,
moving east at 65 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
New Iberia, Abbeville, Jeanerette, Kaplan, Freshwater City, Forked
Island, Intracoastal City, Cypremort Point, Pecan Island, Avery
Island, Erath, Delcambre, Loreauville, Lydia, Acadiana Regional
Airport, Jefferson Island, Sorrel, Coteau, Henry and Cade.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2948 9184 2953 9197 2958 9203 2962 9202
      2962 9204 2960 9207 2952 9198 2958 9205
      2958 9215 2953 9231 2959 9260 2997 9260
      3015 9154 2963 9160 2962 9166 2952 9177
      2949 9177
TIME...MOT...LOC 0713Z 258DEG 56KT 2987 9239 

HAIL...<.75IN
WIND...70MPH
 
$$

Brazzell
371 
WWUS54 KLCH 240733
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
233 AM CDT Sat Apr 24 2021

LAC045-055-099-101-113-240800-
/O.CON.KLCH.SV.W.0066.000000T0000Z-210424T0800Z/
Iberia LA-Lafayette LA-St. Mary LA-Vermilion LA-St. Martin LA-
233 AM CDT Sat Apr 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 AM CDT
FOR IBERIA...SOUTHEASTERN LAFAYETTE...NORTHWESTERN ST. MARY...EASTERN
VERMILION AND WEST CENTRAL ST. MARTIN PARISHES...

At 233 AM CDT, a severe thunderstorm was located over Erath, or near
Abbeville, moving east at 65 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
New Iberia, Abbeville, Jeanerette, Kaplan, Freshwater City, Forked
Island, Intracoastal City, Cypremort Point, Avery Island, Erath,
Delcambre, Loreauville, Lydia, Acadiana Regional Airport, Jefferson
Island, Sorrel, Coteau, Henry, Cade and Meaux.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2948 9184 2953 9197 2958 9203 2962 9202
      2962 9204 2960 9207 2952 9198 2958 9205
      2958 9215 2953 9231 2955 9242 3002 9233
      3015 9154 2963 9160 2962 9166 2952 9177
      2949 9177
TIME...MOT...LOC 0733Z 258DEG 56KT 2993 9204 

HAIL...<.75IN
WIND...70MPH
 
$$

Brazzell

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, 9:43 PM CDTSevere Thunderstorm WarningLCHAllen, Beauregard, Vernon13 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, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.