Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 71, NWS Lake Charles, LA

May 9, 2021Beauregard Parish, Vernon Parish, Louisiana; Newton County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at May 9, 2021, 7:22 PM CDT for Beauregard Parish, Vernon Parish, Louisiana; Newton County, Texas. It was in force for 53 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: May 9, 2021, 7:22 PM CDT (00:22 UTC)
Expired: May 9, 2021, 8:15 PM CDT
In force: 53 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Beauregard Parish, LA, Vernon Parish, LA, Newton County, TX

The radar

The Ft Polk radar (KPOE), 42 km from the middle of the area, began a volume at 00:23 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.

Issued	Product	Office	Lasted
May 9, 5:45 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 0.4 hours before the alert went out and 112 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: 1849 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 683 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 96 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 6.9

Open this sounding in Storm Lab

The text

As transmitted.

383 
WUUS54 KLCH 100022
SVRLCH
LAC011-115-TXC351-100115-
/O.NEW.KLCH.SV.W.0071.210510T0022Z-210510T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
722 PM CDT Sun May 9 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Northeastern Beauregard Parish in southwestern Louisiana...
  Vernon Parish in west central Louisiana...
  Northern Newton County in southeastern Texas...

* Until 815 PM CDT.

* At 721 PM CDT, severe thunderstorms were located along a line
  extending from 11 miles east of Hemphill to near Toledo Bend Dam to
  6 miles east of Mayflower to Burkeville to near Jamestown, 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...
  De Ridder, Leesville, Newton, Rosepine, Anacoco, Toledo Bend Dam,
  Fort Polk, Slagle, Burkeville, New Llano, Hornbeck, Hutton, Burr
  Ferry, Kurthwood, Junction, Stringtown, Cravens, Simpson, Wiergate
  and Evans.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 these storms. 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 these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3101 9303 3093 9301 3089 9302 3075 9317
      3085 9384 3098 9373 3108 9367 3117 9368
      3118 9360 3117 9358 3118 9355 3123 9354
      3124 9356 3128 9353 3128 9344 3136 9339
      3136 9303
TIME...MOT...LOC 0021Z 285DEG 34KT 3131 9366 3116 9364 3109 9362 3098
9367 3089 9380

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

Rua

2 follow-up statements

851 
WWUS54 KLCH 100046
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
746 PM CDT Sun May 9 2021

TXC351-100056-
/O.CAN.KLCH.SV.W.0071.000000T0000Z-210510T0115Z/
Newton TX-
746 PM CDT Sun May 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN NEWTON COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
southwestern and west central Louisiana...and southeastern Texas.

LAT...LON 3101 9303 3093 9301 3088 9303 3075 9317
      3081 9356 3086 9356 3103 9348 3128 9352
      3128 9344 3136 9339 3136 9303
TIME...MOT...LOC 0046Z 285DEG 34KT 3125 9340 3110 9338 3103 9336 3092
9341 3083 9354

$$

LAC011-115-100115-
/O.CON.KLCH.SV.W.0071.000000T0000Z-210510T0115Z/
Beauregard LA-Vernon LA-
746 PM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHEASTERN BEAUREGARD AND VERNON PARISHES...

At 746 PM CDT, severe thunderstorms were located along a line
extending from near Anacoco to 6 miles west of New Llano to 8 miles
east of Burr Ferry to 7 miles west of Rosepine to near Junction,
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...
De Ridder, Leesville, Rosepine, Anacoco, Fort Polk, Slagle, New
Llano, Hornbeck, Hutton, Kurthwood, Junction, Cravens, Simpson and
Pickering.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
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 these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3101 9303 3093 9301 3088 9303 3075 9317
      3081 9356 3086 9356 3103 9348 3128 9352
      3128 9344 3136 9339 3136 9303
TIME...MOT...LOC 0046Z 285DEG 34KT 3125 9340 3110 9338 3103 9336 3092
9341 3083 9354

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

Rua

116 
WWUS54 KLCH 100106
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
806 PM CDT Sun May 9 2021

LAC011-115-100115-
/O.CON.KLCH.SV.W.0071.000000T0000Z-210510T0115Z/
Beauregard LA-Vernon LA-
806 PM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHEASTERN BEAUREGARD AND CENTRAL VERNON PARISHES...

At 806 PM CDT, severe thunderstorms were located along a line
extending from near Slagle to Fort Polk to 7 miles west of Cravens to
near De Ridder to near Tulla, moving east 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...
De Ridder, Fort Polk, Slagle, Kurthwood, Hutton, Cravens and Simpson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
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 these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3079 9342 3089 9328 3100 9323 3107 9325
      3136 9325 3136 9303 3101 9303 3093 9301
      3088 9303 3075 9317
TIME...MOT...LOC 0106Z 285DEG 34KT 3120 9319 3105 9317 3098 9315 3087
9320 3078 9333

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

Rua

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 8:17 PM CDT	Special Weather Statement	LCH	Allen	43 min
May 9, 8:51 PM CDT	Special Weather Statement	LCH	Rapides	39 min
May 9, 9:55 PM CDT	Special Weather Statement	LCH	Evangeline	50 min
May 9, 10:09 PM CDT	Special Weather Statement	LCH	Allen	51 min
May 10, 12:33 AM CDT	Special Weather Statement	LCH	Saint Martin	27 min
May 10, 3:08 AM CDT	Special Weather Statement	LCH	Vernon	37 min
May 10, 3:45 AM CDT	Special Weather Statement	LCH	Rapides	30 min
May 10, 4:36 AM CDT	Special Weather Statement	LCH	Rapides	24 min
May 10, 4:48 AM CDT	Severe Thunderstorm Warning	LCH	Avoyelles, Rapides	45 min
May 10, 6:17 AM CDT	Special Weather Statement	LCH	Evangeline	43 min
May 10, 6:40 AM CDT	Severe Thunderstorm Warning	LCH	Avoyelles, Evangeline, Saint Landry	25 min
May 10, 7:23 AM CDT	Special Weather Statement	LCH	Saint Landry	22 min
May 10, 7:27 AM CDT	Special Weather Statement	LCH	Saint Landry	33 min
May 10, 7:47 AM CDT	Special Weather Statement	LCH	Saint Landry	13 min
May 10, 8:00 AM CDT	Special Weather Statement	LCH	Saint Landry	15 min
May 10, 8:33 AM CDT	Special Weather Statement	LCH	Saint Martin	27 min
May 10, 10:08 AM CDT	River Flood Warning	LCH	Beauregard, Vernon	5 days
May 10, 10:08 AM CDT	River Flood Warning	LCH	Beauregard, Vernon	38 days
May 10, 6:33 PM CDT	Special Weather Statement	LCH	Avoyelles	57 min
May 9, 8:48 PM CDT	Special Weather Statement	LCH	Tyler	42 min
May 9, 9:30 PM CDT	Special Weather Statement	LCH	Jasper	45 min
May 10, 9:03 AM CDT	Areal Flood Warning	LCH	Newton	34 hr
May 10, 6:05 PM CDT	Special Weather Statement	LCH	Tyler	55 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2021 Severe Thunderstorm Warnings in Texas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.