Alert archive / Texas / Tornado Warnings in 2017

Tornado Warning 49, NWS Lake Charles, LA

August 26, 2017Jasper County, Tyler County, Texas

NWS Lake Charles, LA issued this tornado warning at Aug 26, 2017, 12:55 PM CDT for Jasper County, Tyler County, Texas. It was in force for 35 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, 12:55 PM CDT (17:55 UTC)
Expired
Aug 26, 2017, 1:30 PM CDT
In force
35 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Jasper County, TX, Tyler County, TX

The radar

The Lake Charles radar (KLCH), 93 km from the middle of the area, began a volume at 17:54 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, 5.9 hours before the alert went out and 95 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°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.

598 
WFUS54 KLCH 261755
TORLCH
TXC241-457-261830-
/O.NEW.KLCH.TO.W.0049.170826T1755Z-170826T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lake Charles LA
1255 PM CDT SAT AUG 26 2017

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  Southeastern Tyler County in southeastern Texas...
  Southeastern Jasper County in southeastern Texas...

* Until 130 PM CDT
    
* At 1255 PM CDT, a severe thunderstorm capable of producing a
  tornado was located near Evadale, moving north at 35 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. 

* Locations impacted include...
  Buna, Mt. Union and Magnolia Springs. 

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3073 9415 3074 9392 3037 9395 3034 9408
      3036 9410 3044 9411 3046 9410 3047 9410
      3049 9408 3051 9408 3052 9407 3053 9412
TIME...MOT...LOC 1755Z 175DEG 29KT 3040 9403 

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

$$

Jones
1 follow-up statement
925 
WWUS54 KLCH 261822
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
122 PM CDT SAT AUG 26 2017

TXC241-457-261830-
/O.CON.KLCH.TO.W.0049.000000T0000Z-170826T1830Z/
Tyler TX-Jasper TX-
122 PM CDT SAT AUG 26 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR
SOUTHEASTERN TYLER AND SOUTHEASTERN JASPER COUNTIES...
    
At 122 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Mt. Union, or 7 miles east of Fred, moving north at
35 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. 

Locations impacted include...
Buna, Mt. Union and Magnolia Springs. 

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3073 9415 3074 9392 3037 9395 3034 9408
      3036 9410 3044 9411 3046 9410 3047 9410
      3049 9408 3051 9408 3052 9407 3053 9412
TIME...MOT...LOC 1822Z 175DEG 29KT 3062 9405 

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

$$

Jones

The office that day

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

IssuedProductOfficeCountiesLasted
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, 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, 2:00 PM CDTFlash Flood WarningLCHNewton, Orange4 hr
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, 4:30 PM CDTTornado WarningLCHNewton30 min
Aug 26, 5:45 PM CDTFlash Flood WarningLCHHardin, Jasper, Jefferson, Newton, Orange6 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.