Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 65, NWS Lake Charles, LA

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

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 23, 2021, 10:58 PM CDT for Avoyelles Parish, Evangeline Parish, Saint Landry Parish, Louisiana. It was in force for 46 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, 10:58 PM CDT (03:58 UTC)
Expired
Apr 23, 2021, 11:44 PM CDT
In force
46 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), 101 km from the middle of the area, began a volume at 03:59 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.

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, 4.0 hours before the alert went out and 154 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.

337 
WUUS54 KLCH 240358
SVRLCH
LAC009-039-097-240500-
/O.NEW.KLCH.SV.W.0065.210424T0358Z-210424T0500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
1058 PM CDT Fri Apr 23 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Northeastern Evangeline Parish in central Louisiana...
  Avoyelles Parish in central Louisiana...
  North central St. Landry Parish in central Louisiana...

* Until midnight CDT.

* At 1058 PM CDT, a severe thunderstorm was located over Indian Lake,
  or 7 miles north of Ville Platte, moving east at 45 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, Bunkie, Simmesport, Moreauville, Turkey Creek,
  Bordelonville, Morrow, Cottonport, Pine Prairie, Mansura, Hessmer,
  Evergreen, Plaucheville, Bayou Chicot, Goudeau, Indian Lake, Chicot
  State Park, Whiteville, Big Cane and Dupont.

This includes Interstate 49 between mile markers 35 and 54.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 400 AM CDT for central
Louisiana.

A Tornado Watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a small interior
room.

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

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.

&&

LAT...LON 3110 9171 3109 9172 3107 9171 3105 9172
      3099 9178 3098 9180 3087 9180 3086 9182
      3083 9180 3064 9240 3086 9245 3097 9227
      3096 9221 3100 9222 3123 9181
TIME...MOT...LOC 0358Z 247DEG 38KT 3080 9224 

HAIL...0.88IN
WIND...60MPH
 
$$
3 follow-up statements
698 
WWUS54 KLCH 240420
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
1120 PM CDT Fri Apr 23 2021

LAC039-240429-
/O.CAN.KLCH.SV.W.0065.000000T0000Z-210424T0500Z/
Evangeline LA-
1120 PM CDT Fri Apr 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN EVANGELINE PARISH
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
Louisiana.

LAT...LON 3110 9171 3109 9172 3107 9171 3105 9172
      3098 9180 3087 9180 3086 9182 3083 9180
      3071 9217 3077 9217 3079 9221 3085 9221
      3085 9224 3089 9224 3094 9228 3096 9228
      3096 9221 3100 9222 3123 9181
TIME...MOT...LOC 0419Z 247DEG 38KT 3089 9200 

$$

LAC009-097-240500-
/O.CON.KLCH.SV.W.0065.000000T0000Z-210424T0500Z/
Avoyelles LA-St. Landry LA-
1120 PM CDT Fri Apr 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR AVOYELLES AND NORTH CENTRAL ST. LANDRY PARISHES...

At 1119 PM CDT, a severe thunderstorm was located over Goudeau, or
near Morrow, moving northeast at 45 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Bunkie, Simmesport, Moreauville, Bordelonville, Morrow, Cottonport,
Mansura, Hessmer, Evergreen, Plaucheville, Goudeau, Whiteville, Big
Cane, Dupont, Big Bend and Hamburg.

This includes Interstate 49 between mile markers 35 and 38, between
mile markers 41 and 42, and between mile markers 46 and 54.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 400 AM CDT for central
Louisiana.

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a small interior room.

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

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.

&&

LAT...LON 3110 9171 3109 9172 3107 9171 3105 9172
      3098 9180 3087 9180 3086 9182 3083 9180
      3071 9217 3077 9217 3079 9221 3085 9221
      3085 9224 3089 9224 3094 9228 3096 9228
      3096 9221 3100 9222 3123 9181
TIME...MOT...LOC 0419Z 247DEG 38KT 3089 9200 

HAIL...0.88IN
WIND...60MPH
 
$$
655 
WWUS54 KLCH 240431
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
1131 PM CDT Fri Apr 23 2021

LAC097-240440-
/O.CAN.KLCH.SV.W.0065.000000T0000Z-210424T0500Z/
St. Landry LA-
1131 PM CDT Fri Apr 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL ST. LANDRY
PARISH 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
Louisiana.

LAT...LON 3110 9171 3109 9172 3107 9171 3105 9172
      3098 9180 3087 9180 3087 9204 3088 9209
      3096 9219 3121 9179
TIME...MOT...LOC 0430Z 247DEG 38KT 3094 9187 

$$

LAC009-240500-
/O.CON.KLCH.SV.W.0065.000000T0000Z-210424T0500Z/
Avoyelles LA-
1131 PM CDT Fri Apr 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR SOUTHERN AVOYELLES PARISH...

At 1130 PM CDT, a severe thunderstorm was located near Simmesport,
moving northeast at 45 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Bunkie, Simmesport, Moreauville, Bordelonville, Cottonport, Mansura,
Evergreen, Plaucheville, Goudeau, Dupont, Big Bend and Hamburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 400 AM CDT for central
Louisiana.

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a small interior room.

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

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.

&&

LAT...LON 3110 9171 3109 9172 3107 9171 3105 9172
      3098 9180 3087 9180 3087 9204 3088 9209
      3096 9219 3121 9179
TIME...MOT...LOC 0430Z 247DEG 38KT 3094 9187 

HAIL...0.88IN
WIND...60MPH
 
$$
462 
WWUS54 KLCH 240444
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
1144 PM CDT Fri Apr 23 2021

LAC009-240453-
/O.CAN.KLCH.SV.W.0065.000000T0000Z-210424T0500Z/
Avoyelles LA-
1144 PM CDT Fri Apr 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN AVOYELLES PARISH IS
CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.  However gusty winds and heavy rain are still
possible with this thunderstorm.

A Tornado Watch remains in effect until 400 AM CDT for central
Louisiana.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Lake Charles.

LAT...LON 3110 9171 3109 9172 3107 9171 3105 9172
      3098 9180 3087 9180 3087 9204 3088 9209
      3096 9219 3121 9179
TIME...MOT...LOC 0441Z 247DEG 38KT 3100 9171 

$$

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, 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.