Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 22, NWS Lake Charles, LA

April 7, 2021Avoyelles Parish, Rapides Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 7, 2021, 9:01 PM CDT for Avoyelles Parish, Rapides Parish, Louisiana. It was in force for 44 min. 5 reports 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 7, 2021, 9:01 PM CDT (02:01 UTC)
Expired: Apr 7, 2021, 9:45 PM CDT
In force: 44 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Avoyelles Parish, LA, Rapides Parish, LA

The radar

The Ft Polk radar (KPOE), 59 km from the middle of the area, began a volume at 02:03 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

Time	Report	Where	Remark
Apr 7, 9:13 PM CDT	TORNADO	3 Nne Lecompte, LA	AN EF1 TORNADO TOUCHED DOWN ALONG LAMOURIE RD,REMOVING THE ROOF OF A SMALL BARN AND FLIPPING OVER AN UNTIED SINGLE WIDE MOBILE HOME. SEVERAL TREES WERE SNAPPED AS WELL.
Apr 7, 9:52 PM CDT	TSTM WND DMG	1 S Marksville, LA	MINOR WIND RELATED DAMAGE TO BUILDINGS AND SIGNS ON THE SOUTHSIDE OF MARKSVILLE. DAMAGE WAS SEEN AT THE SONIC DRIVE-IN AS WELL AS THE AVOYELLES PARISH 911 OFFICE. THIS WAS POSSIBLY DUE TO A TORNADO.
Apr 7, 9:52 PM CDT	TSTM WND DMG	1 S Marksville, LA	MINOR WIND RELATED DAMAGE TO BUILDINGS AND SIGNS ON THE SOUTHSIDE OF MARKSVILLE. DAMAGE WAS SEEN AT THE SONIC DRIVE-IN AS WELL AS THE AVOYELLES PARISH 911 OFFICE. THIS WAS NOT A TORNADO.
Apr 7, 9:52 PM CDT	TORNADO	3 S Marksville, LA	AN EF1 TORNADO TOUCHED DOWN AT THE CHARTER SCHOOL,DAMAGING SOME OF THE EXTERIOR WALLS. SEVERAL ROOFS OF OUTSIDE BALLFIELDS WERE DESTROYED. MANY TREES WERE SNAPPED OR UPROOTED NEAR OLD RIVER ROAD EAST OF THE SCHOOL.
Apr 7, 9:54 PM CDT	TSTM WND DMG	3 S Marksville, LA	MINOR WIND RELATED DAMAGE AT THE AVOYELLES PUBLIC CHARTER SCHOOL LOCATED NEAR MANSURA. THIS WAS POSSIBLY DUE TO A TORNADO.

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, 2.0 hours before the alert went out and 139 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1905 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 549 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 204 m²/s²
0-3 km storm-relative helicity: 210 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 12.6

Open this sounding in Storm Lab

The text

As transmitted.

723 
WUUS54 KLCH 080201
SVRLCH
LAC009-079-080245-
/O.NEW.KLCH.SV.W.0022.210408T0201Z-210408T0245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
901 PM CDT Wed Apr 7 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Central Rapides Parish in central Louisiana...
  Northwestern Avoyelles Parish in central Louisiana...

* Until 945 PM CDT.

* At 901 PM CDT, a severe thunderstorm was located near Lecompte, or
  10 miles south of Alexandria, moving east at 40 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...
  Marksville, Effie, Mansura, Lecompte, Hessmer, Echo, Poland,
  Centerpoint, Ruby, Woodworth and Forest Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3107 9258 3123 9258 3129 9205 3102 9201
TIME...MOT...LOC 0201Z 270DEG 35KT 3114 9247 

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

24

1 follow-up statement

024 
WUUS54 KLCH 080202 CCA
SVRLCH
LAC009-079-080245-
/O.COR.KLCH.SV.W.0022.210408T0201Z-210408T0245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
902 PM CDT Wed Apr 7 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Central Rapides Parish in central Louisiana...
  Northwestern Avoyelles Parish in central Louisiana...

* Until 945 PM CDT.

* At 902 PM CDT, a severe thunderstorm was located near Lecompte, or
  10 miles south of Alexandria, moving east at 40 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...
  Marksville, Effie, Mansura, Lecompte, Hessmer, Echo, Poland,
  Centerpoint, Ruby, Woodworth and Forest Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3107 9258 3123 9258 3129 9205 3102 9201
TIME...MOT...LOC 0202Z 270DEG 35KT 3114 9247 

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

24

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 7:07 PM CDT	Special Weather Statement	LCH	Vernon	38 min
Apr 7, 7:53 PM CDT	Severe Thunderstorm Warning	LCH	Vernon	16 min
Apr 7, 8:17 PM CDT	Special Weather Statement	LCH	Vernon	43 min
Apr 7, 8:33 PM CDT	Special Weather Statement	LCH	Rapides	42 min
Apr 7, 9:11 PM CDT	Tornado Warning	LCH	Avoyelles, Rapides	19 min
Apr 7, 9:33 PM CDT	Special Weather Statement	LCH	Allen, Beauregard, Evangeline	42 min
Apr 7, 9:37 PM CDT	Severe Thunderstorm Warning	LCH	Avoyelles	38 min
Apr 7, 9:44 PM CDT	Tornado Warning	LCH	Avoyelles	31 min
Apr 7, 10:11 PM CDT	Tornado Warning	LCH	Avoyelles	19 min
Apr 7, 11:39 PM CDT	Special Weather Statement	LCH	Saint Landry	51 min
Apr 8, 12:31 AM CDT	Severe Thunderstorm Warning	LCH	Saint Landry	16 min
Apr 8, 12:39 AM CDT	Special Weather Statement	LCH	Lafayette	36 min
Apr 8, 6:22 AM CDT	Dense Fog Advisory	LCH	Avoyelles, Rapides	3 hr

Nearby

Severe Thunderstorm Warnings in Louisiana, 2021 Every 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.