Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 9, NWS Lake Charles, LA

March 23, 2021Tyler County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 23, 2021, 2:57 AM CDT for Tyler County, Texas. It was in force for 33 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: Mar 23, 2021, 2:57 AM CDT (07:57 UTC)
Expired: Mar 23, 2021, 3:30 AM CDT
In force: 33 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

County Tyler County, TX

The radar

The Ft Polk radar (KPOE), 142 km from the middle of the area, began a volume at 07:58 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 00:00Z, 8.0 hours before the alert went out and 156 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: 82 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 715 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 183 m²/s²
0-3 km storm-relative helicity: 405 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

566 
WUUS54 KLCH 230757
SVRLCH
TXC457-230830-
/O.NEW.KLCH.SV.W.0009.210323T0757Z-210323T0830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
257 AM CDT Tue Mar 23 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Northwestern Tyler County in southeastern Texas...

* Until 330 AM CDT.

* At 256 AM CDT, a severe thunderstorm was located 7 miles east of
  Corrigan, or 7 miles northwest of Chester, 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...
  Colmesneil, Chester and Rockland. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3106 9456 3105 9449 3103 9448 3104 9445
      3100 9445 3101 9444 3103 9441 3103 9438
      3104 9434 3102 9433 3102 9432 3093 9431
      3087 9463 3101 9466
TIME...MOT...LOC 0756Z 262DEG 40KT 3100 9469 

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

Stigger/87

2 follow-up statements

239 
WWUS54 KLCH 230811
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
311 AM CDT Tue Mar 23 2021

TXC457-230830-
/O.CON.KLCH.SV.W.0009.000000T0000Z-210323T0830Z/
Tyler TX-
311 AM CDT Tue Mar 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM CDT
FOR NORTHWESTERN TYLER COUNTY...

At 311 AM CDT, a severe thunderstorm was located near Rockland,
moving east at 45 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Colmesneil, Chester and Rockland. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3106 9456 3105 9449 3103 9448 3104 9445
      3100 9445 3101 9444 3103 9441 3103 9438
      3104 9434 3102 9433 3102 9432 3093 9431
      3087 9463 3101 9466
TIME...MOT...LOC 0811Z 262DEG 40KT 3102 9449 

HAIL...0.75IN
WIND...60MPH
 
$$

Stigger/87

352 
WWUS54 KLCH 230824
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
324 AM CDT Tue Mar 23 2021

TXC457-230830-
/O.CON.KLCH.SV.W.0009.000000T0000Z-210323T0830Z/
Tyler TX-
324 AM CDT Tue Mar 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM CDT
FOR NORTHWESTERN TYLER COUNTY...

At 323 AM CDT, a severe thunderstorm was located near Rockland,
moving east at 45 mph.

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

SOURCE...Radar indicated.

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

This severe thunderstorm will remain over mainly rural areas of
northwestern Tyler County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3105 9449 3103 9448 3104 9445 3100 9445
      3101 9444 3103 9441 3103 9438 3098 9439
      3093 9455 3099 9459 3105 9450
TIME...MOT...LOC 0823Z 262DEG 40KT 3104 9433 

HAIL...0.75IN
WIND...60MPH
 
$$

Stigger/87

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 23, 3:30 AM CDT	Special Weather Statement	LCH	Tyler	15 min
Mar 23, 5:20 AM CDT	Special Weather Statement	LCH	Hardin, Jasper, Tyler	40 min
Mar 23, 7:43 AM CDT	Flash Flood Warning	LCH	Jefferson	2 hr

Nearby

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.