Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 78, NWS Lake Charles, LA

May 11, 2021Hardin County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at May 11, 2021, 6:27 PM CDT for Hardin County, Texas. It was in force for 63 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 11, 2021, 6:27 PM CDT (23:27 UTC)
Expired
May 11, 2021, 7:30 PM CDT
In force
63 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

County Hardin County, TX

The radar

The Houston radar (KHGX), 115 km from the middle of the area, began a volume at 23:29 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.

IssuedProductOfficeLasted
May 11, 5:22 PM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 11.5 hours before the alert went out and 128 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 2021-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2925 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 2021-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 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
2925 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
472 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
1.8
Supercell composite
11.9

Open this sounding in Storm Lab

The text

As transmitted.

567 
WUUS54 KLCH 112327
SVRLCH
TXC199-120030-
/O.NEW.KLCH.SV.W.0078.210511T2327Z-210512T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
627 PM CDT Tue May 11 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Hardin County in southeastern Texas...

* Until 730 PM CDT.

* At 626 PM CDT, severe thunderstorms were located along a line
  extending from 7 miles south of Alabama-Coushatta Reservation to 11
  miles southwest of Votaw to near Plum Grove, moving east at 35 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...
  Silsbee, Kountze, Saratoga, Thicket, Wildwood, Batson, Caney Head,
  Votaw, Honey Island and Village Mills.

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 3049 9473 3049 9454 3053 9454 3053 9409
      3034 9420 3016 9440 3017 9462 3018 9462
TIME...MOT...LOC 2326Z 270DEG 33KT 3061 9469 3035 9484 3019 9502 

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

Rua
1 follow-up statement
387 
WWUS54 KLCH 120004
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
704 PM CDT Tue May 11 2021

TXC199-120030-
/O.CON.KLCH.SV.W.0078.000000T0000Z-210512T0030Z/
Hardin TX-
704 PM CDT Tue May 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR HARDIN COUNTY...

At 704 PM CDT, severe thunderstorms were located along a line
extending from near Warren to near Honey Island to near Batson,
moving east at 15 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...
Silsbee, Kountze, Saratoga, Wildwood, Batson, Caney Head, Honey
Island and Village Mills.

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 3049 9411 3035 9421 3016 9442 3017 9462
      3018 9462 3026 9465 3034 9460 3049 9457
      3049 9454 3053 9454 3053 9409
TIME...MOT...LOC 0004Z 249DEG 15KT 3065 9446 3037 9453 3019 9463 

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

Rua

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 9:02 PM CDTRiver Flood WarningLCHJasper, Tyler21 days
May 11, 3:20 AM CDTFlash Flood WatchLCHHardin, Jasper, Newton, Tyler34 hr
May 11, 6:42 AM CDTSpecial Weather StatementLCHNewton33 min
May 11, 7:23 AM CDTSpecial Weather StatementLCHJasper22 min
May 11, 7:39 AM CDTSpecial Weather StatementLCHHardin51 min
May 11, 5:58 PM CDTSevere Thunderstorm WarningLCHJasper, Tyler62 min
May 11, 6:54 PM CDTSevere Thunderstorm WarningLCHJasper, Newton, Tyler25 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.