Alert archive / Louisiana / Tornado Warnings in 2017

Tornado Warning 57, NWS Lake Charles, LA

August 26, 2017Beauregard Parish, Louisiana; Newton County, Texas

NWS Lake Charles, LA issued this tornado warning at Aug 26, 2017, 4:30 PM CDT for Beauregard Parish, Louisiana; Newton County, Texas. It was in force for 30 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 26, 2017, 4:30 PM CDT (21:30 UTC)
Expired
Aug 26, 2017, 5:00 PM CDT
In force
30 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Beauregard Parish, LA, Newton County, TX

The radar

The Lake Charles radar (KLCH), 77 km from the middle of the area, began a volume at 21:32 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 26, 12:50 PM CDTTornado WatchSPC13 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.5 hours before the alert went out and 79 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 2017-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2221 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 2017-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 241 square meters per square second.1939Sfc1 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
2221 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
512 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
241 m²/s²
0-3 km storm-relative helicity
305 m²/s²
Significant tornado parameter
1.9
Supercell composite
13.5

Open this sounding in Storm Lab

The text

As transmitted.

844 
WFUS54 KLCH 262130
TORLCH
LAC011-TXC351-262200-
/O.NEW.KLCH.TO.W.0057.170826T2130Z-170826T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lake Charles LA
430 PM CDT SAT AUG 26 2017

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  Northwestern Beauregard Parish in southwestern Louisiana...
  Central Newton County in southeastern Texas...

* Until 500 PM CDT
    
* At 430 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Bivens, or 7 miles south of Bon Weir, moving
  northwest at 30 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...
  Bon Weir around 445 PM CDT. 
  Newton around 500 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Bleakwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. 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 3059 9352 3051 9370 3073 9387 3078 9387
      3094 9362
TIME...MOT...LOC 2130Z 154DEG 28KT 3063 9365 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

24

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 25, 11:19 PM CDTSpecial Marine WarningLCH41 min
Aug 25, 11:52 PM CDTSpecial Marine WarningLCH53 min
Aug 26, 10:54 AM CDTRiver Flood WarningLCHCalcasieu12 days
Aug 26, 12:34 PM CDTTornado WarningLCHCalcasieu26 min
Aug 26, 1:21 PM CDTSpecial Weather StatementLCHSaint Landry24 min
Aug 26, 2:00 PM CDTFlash Flood WarningLCHBeauregard, Calcasieu4 hr
Aug 26, 3:38 PM CDTTornado WarningLCHVernon37 min
Aug 26, 5:33 PM CDTSpecial Marine WarningLCH27 min
Aug 26, 11:40 AM CDTTornado WarningLCHOrange35 min
Aug 26, 11:48 AM CDTFlash Flood WarningLCHHardin, Jasper, Jefferson, Newton, Orange6 hr
Aug 26, 12:03 PM CDTFlash Flood WarningLCHHardin6 hr
Aug 26, 12:32 PM CDTTornado WarningLCHJasper, Orange28 min
Aug 26, 12:55 PM CDTTornado WarningLCHJasper, Tyler35 min
Aug 26, 1:27 PM CDTFlash Flood WarningLCHHardin, Jasper, Tyler5 hr
Aug 26, 1:29 PM CDTTornado WarningLCHJasper, Tyler31 min
Aug 26, 1:41 PM CDTSpecial Weather StatementLCHJasper34 min
Aug 26, 1:43 PM CDTSpecial Weather StatementLCHHardin32 min
Aug 26, 1:54 PM CDTTornado WarningLCHJasper, Tyler36 min
Aug 26, 2:40 PM CDTTornado WarningLCHHardin35 min
Aug 26, 3:06 PM CDTTornado WarningLCHHardin, Tyler24 min
Aug 26, 3:33 PM CDTTornado WarningLCHTyler27 min
Aug 26, 4:18 PM CDTTornado WarningLCHJasper, Orange27 min
Aug 26, 5:45 PM CDTFlash Flood WarningLCHHardin, Jasper, Jefferson, Newton, Orange6 hr

Nearby

Tornado Warnings in Louisiana, 2017Tornado 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.