Alert archive / Texas / Tornado Warnings in 2017

Tornado Warning 96, NWS Lake Charles, LA

August 28, 2017Hardin County, Jefferson County, Texas

NWS Lake Charles, LA issued this tornado warning at Aug 28, 2017, 3:42 PM CDT for Hardin County, Jefferson 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
Aug 28, 2017, 3:42 PM CDT (20:42 UTC)
Expired
Aug 28, 2017, 4:15 PM CDT
In force
33 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Hardin County, TX, Jefferson County, TX

The radar

The Lake Charles radar (KLCH), 100 km from the middle of the area, began a volume at 20:41 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
Aug 28, 12:16 PM CDTTornado WatchSPC12 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.7 hours before the alert went out and 101 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 2017-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 169 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2017-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 377 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
169 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
610 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
377 m²/s²
0-3 km storm-relative helicity
499 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.8

Open this sounding in Storm Lab

The text

As transmitted.

143 
WFUS54 KLCH 282042
TORLCH
TXC199-245-282115-
/O.NEW.KLCH.TO.W.0096.170828T2042Z-170828T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lake Charles LA
342 PM CDT MON AUG 28 2017

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  Northwestern Jefferson County in southeastern Texas...
  South central Hardin County in southeastern Texas...

* Until 415 PM CDT
    
* At 341 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Fannett, or 8 miles northeast of Hamshire, moving
  northwest at 20 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  China around 410 PM CDT. 
  Bevil Oaks around 415 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW!  Avoid windows. If you are outdoors, in a mobile 
home, or in a vehicle, move to the closest substantial shelter and 
protect yourself from flying debris.

&&

LAT...LON 2995 9416 2991 9425 3011 9442 3019 9424
TIME...MOT...LOC 2041Z 152DEG 17KT 2995 9422 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

K. Kuyper

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 7:00 PM CDTTornado WarningLCHJefferson30 min
Aug 27, 7:24 PM CDTTornado WarningLCHJefferson51 min
Aug 27, 7:41 PM CDTFlash Flood WarningLCHHardin, Jasper, Jefferson, Orange10 hr
Aug 27, 9:54 PM CDTTornado WarningLCHJefferson36 min
Aug 27, 11:58 PM CDTFlash Flood WarningLCHNewton, Orange8 hr
Aug 28, 12:19 AM CDTTornado WarningLCHJefferson, Orange26 min
Aug 28, 12:49 AM CDTSpecial Weather StatementLCHOrange41 min
Aug 28, 3:42 AM CDTTornado WarningLCHJefferson38 min
Aug 28, 4:55 AM CDTSpecial Weather StatementLCHOrange50 min
Aug 28, 5:00 AM CDTCoastal Flood AdvisoryLCH9 hr
Aug 28, 5:42 AM CDTFlash Flood Warning EmergencyLCHHardin, Jasper, Jefferson, Orange12 hr
Aug 28, 7:54 AM CDTFlash Flood WarningLCHNewton, Orange11 hr
Aug 28, 8:05 AM CDTFlash Flood WarningLCHJasper, Tyler11 hr
Aug 28, 9:18 AM CDTRiver Flood WarningLCHNewton10 days
Aug 28, 9:38 AM CDTTornado WarningLCHJasper, Newton22 min
Aug 28, 10:20 AM CDTTropical Storm WarningLCH58 hr
Aug 28, 10:31 AM CDTRiver Flood WarningLCHJasper, Tyler11 days
Aug 28, 10:31 AM CDTRiver Flood WarningLCHHardin, Jasper15 days
Aug 28, 2:26 PM CDTRiver Flood WarningLCHOrange13 days
Aug 28, 2:30 PM CDTTornado WarningLCHJefferson30 min
Aug 28, 3:14 PM CDTTornado WarningLCHJefferson31 min
Aug 28, 4:15 PM CDTStorm Surge WatchLCH51 hr
Aug 28, 5:55 PM CDTFlash Flood Warning EmergencyLCHHardin, Jasper, Jefferson, Newton, Orange28 hr

Nearby

Tornado Warnings in Texas, 2017Every tornado warning in 2017Tornadoes in 2017

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.