Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 109, NWS Lake Charles, LA

October 27, 20215 counties in Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Oct 27, 2021, 10:54 AM CDT for 5 counties in Texas. It was in force for 51 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: Oct 27, 2021, 10:54 AM CDT (15:54 UTC)
Expired: Oct 27, 2021, 11:45 AM CDT
In force: 51 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Hardin County, TX, Jasper County, TX, Jefferson County, TX, Newton County, TX, Orange County, TX

The radar

The Lake Charles radar (KLCH), 63 km from the middle of the area, began a volume at 15:56 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
Oct 27, 7:55 AM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 3.9 hours before the alert went out and 65 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: 1422 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 604 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 255 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 7.1

Open this sounding in Storm Lab

The text

As transmitted.

553 
WUUS54 KLCH 271554
SVRLCH
TXC199-241-245-351-361-271645-
/O.NEW.KLCH.SV.W.0109.211027T1554Z-211027T1645Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
1054 AM CDT Wed Oct 27 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  North central Jefferson County in southeastern Texas...
  Southwestern Newton County in southeastern Texas...
  Southeastern Hardin County in southeastern Texas...
  Northern Orange County in southeastern Texas...
  Southeastern Jasper County in southeastern Texas...

* Until 1145 AM CDT.

* At 1053 AM CDT, a severe thunderstorm was located near Lakeview, or
  near Lumberton, moving east at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Beaumont, Lumberton, Vidor, Deweyville, Mauriceville, Pine Forest,
  Lakeview, Weiss Bluff, Gist, Hartburg and Forest Heights.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 400 PM CDT for southwestern
Louisiana...and southeastern Texas.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into a
small central room in a sturdy structure.

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

A Tornado Watch remains in effect until 400 PM CDT for southwestern
Louisiana...and southeastern Texas.

&&

LAT...LON 3029 9427 3041 9375 3040 9375 3039 9376
      3036 9375 3035 9376 3033 9376 3033 9375
      3030 9374 3030 9372 3023 9371 3021 9372
      3019 9372 3011 9423
TIME...MOT...LOC 1553Z 259DEG 27KT 3022 9416 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Brazzell

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 27, 8:13 AM CDT	Tornado Warning	LCH	Jefferson	32 min
Oct 27, 8:42 AM CDT	Tornado Warning	LCH	Jefferson, Orange	33 min
Oct 27, 9:10 AM CDT	Tornado Warning	LCH	Jasper, Newton, Orange	24 min
Oct 27, 9:21 AM CDT	Tornado Warning	LCH	Newton, Orange	24 min
Oct 27, 9:41 AM CDT	Tornado Warning	LCH	Newton, Orange	34 min
Oct 27, 10:09 AM CDT	Tornado Warning	LCH	Newton	36 min
Oct 27, 10:13 AM CDT	Special Weather Statement	LCH	Hardin, Jasper, Jefferson	47 min
Oct 27, 10:24 AM CDT	Flash Flood Warning	LCH	Jefferson, Orange	3 hr
Oct 27, 10:35 AM CDT	Severe Thunderstorm Warning	LCH	Jefferson, Orange	55 min
Oct 27, 11:04 AM CDT	Severe Thunderstorm Warning	LCH	Orange	26 min
Oct 27, 11:14 AM CDT	Severe Thunderstorm Warning	LCH	Jefferson, Orange	31 min
Oct 27, 11:30 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LCH	Newton, Orange	60 min

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.