Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 123, NWS Lake Charles, LA

December 18, 20214 counties in Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Dec 18, 2021, 12:28 PM CST for 4 counties in Texas. It was in force for 45 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
Dec 18, 2021, 12:28 PM CST (18:28 UTC)
Expired
Dec 18, 2021, 1:13 PM CST
In force
45 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Hardin County, TX, Jasper County, TX, Newton County, TX, Tyler County, TX

The radar

The Lake Charles radar (KLCH), 92 km from the middle of the area, began a volume at 18:33 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 nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 6.5 hours before the alert went out and 93 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 12:00Z on 2021-12-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1750 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 12:00Z on 2021-12-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.193958Sfc1 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
1750 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
441 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.7

Open this sounding in Storm Lab

The text

As transmitted.

582 
WUUS54 KLCH 181828
SVRLCH
TXC199-241-351-457-181930-
/O.NEW.KLCH.SV.W.0123.211218T1828Z-211218T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
1228 PM CST Sat Dec 18 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Southeastern Tyler County in southeastern Texas...
  Northwestern Newton County in southeastern Texas...
  Northeastern Hardin County in southeastern Texas...
  Eastern Jasper County in southeastern Texas...

* Until 130 PM CST.

* At 1228 PM CST, severe thunderstorms were located along a line
  extending from Jasper to Caney Head, moving east at 20 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Jasper, Newton, Kirbyville, Call, Evadale, Fred, Buna, Caney Head,
  Trout Creek, Farrsville, Magnolia Springs, Old Salem, Mt. Union,
  Wrights Settlement, Jamestown, Roganville, Stringtown and
  Bleakwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3098 9358 3027 9385 3043 9430 3100 9401
TIME...MOT...LOC 1828Z 285DEG 19KT 3092 9397 3052 9416 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Donato
2 follow-up statements
403 
WWUS54 KLCH 181907
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
107 PM CST Sat Dec 18 2021

TXC199-241-457-181916-
/O.CAN.KLCH.SV.W.0123.000000T0000Z-211218T1930Z/
Tyler TX-Hardin TX-Jasper TX-
107 PM CST Sat Dec 18 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TYLER...
NORTHEASTERN HARDIN AND EASTERN JASPER COUNTIES IS CANCELLED...

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

LAT...LON 3098 9358 3027 9385 3030 9390 3069 9385
      3098 9370
TIME...MOT...LOC 1906Z 285DEG 19KT 3087 9375 3047 9395 

$$

TXC351-181930-
/O.CON.KLCH.SV.W.0123.000000T0000Z-211218T1930Z/
Newton TX-
107 PM CST Sat Dec 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM CST
FOR NORTHWESTERN NEWTON COUNTY...

At 106 PM CST, severe thunderstorms were located along a line
extending from Newton to near Buna, moving east at 20 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Newton, Wrights Settlement, Old Salem, Trout Creek, Stringtown and
Bleakwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3098 9358 3027 9385 3030 9390 3069 9385
      3098 9370
TIME...MOT...LOC 1906Z 285DEG 19KT 3087 9375 3047 9395 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Donato
497 
WWUS54 KLCH 181913
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
113 PM CST Sat Dec 18 2021

TXC351-181923-
/O.CAN.KLCH.SV.W.0123.000000T0000Z-211218T1930Z/
Newton TX-
113 PM CST Sat Dec 18 2021

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

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

LAT...LON 3098 9358 3027 9385 3030 9390 3069 9385
      3098 9370
TIME...MOT...LOC 1912Z 285DEG 19KT 3086 9371 3046 9391 

$$

Donato

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 18, 11:26 AM CSTSpecial Weather StatementLCHTyler34 min
Dec 18, 11:52 AM CSTSpecial Weather StatementLCHHardin23 min
Dec 18, 12:11 PM CSTSpecial Weather StatementLCHJasper, Newton34 min
Dec 18, 12:13 PM CSTSpecial Weather StatementLCHHardin32 min
Dec 18, 12:44 PM CSTSpecial Weather StatementLCHJefferson, Orange31 min
Dec 18, 12:52 PM CSTSevere Thunderstorm WarningLCHNewton38 min
Dec 18, 1:32 PM CSTSevere Thunderstorm WarningLCHJefferson, Orange58 min

Nearby

Severe Thunderstorm Warnings in Texas, 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.