Alert archive / Texas / Tornado Warnings in 2017

Tornado Warning 66, NWS Lake Charles, LA

August 27, 2017Newton County, Texas

NWS Lake Charles, LA issued this tornado warning at Aug 27, 2017, 1:50 PM CDT for Newton County, Texas. It was in force for 25 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 27, 2017, 1:50 PM CDT (18:50 UTC)
Expired
Aug 27, 2017, 2:15 PM CDT
In force
25 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Newton County, TX

The radar

The Ft Polk radar (KPOE), 68 km from the middle of the area, began a volume at 18:50 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 nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 6.8 hours before the alert went out and 119 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 2017-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 323 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 2017-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 181 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
323 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
934 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
181 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.0

Open this sounding in Storm Lab

The text

As transmitted.

441 
WFUS54 KLCH 271850
TORLCH
TXC351-271915-
/O.NEW.KLCH.TO.W.0066.170827T1850Z-170827T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lake Charles LA
150 PM CDT SUN AUG 27 2017

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  Northern Newton County in southeastern Texas...

* Until 215 PM CDT
    
* At 150 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Mayflower, or near Burkeville, moving northwest at
  15 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...
  Mayflower around 200 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Wiergate.

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 3113 9354 3097 9365 3106 9389 3116 9391
      3118 9361
TIME...MOT...LOC 1850Z 121DEG 15KT 3109 9367 

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

$$

Jones
1 follow-up statement
794 
WWUS54 KLCH 271903
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
203 PM CDT SUN AUG 27 2017

TXC351-271915-
/O.CON.KLCH.TO.W.0066.000000T0000Z-170827T1915Z/
Newton TX-
203 PM CDT SUN AUG 27 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 PM CDT FOR
NORTHWESTERN NEWTON COUNTY...
    
At 203 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Mayflower, or 8 miles northwest of Burkeville,
moving northwest at 15 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...
Mayflower.

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 3113 9354 3107 9368 3107 9384 3116 9391
      3118 9361
TIME...MOT...LOC 1903Z 121DEG 15KT 3112 9373 

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 27, 1:21 AM CDTFlash Flood Warning EmergencyLCHHardin, Jasper, Jefferson, Orange14 hr
Aug 27, 8:15 AM CDTRiver Flood WarningLCHHardin8 days
Aug 27, 8:29 AM CDTFlash Flood WarningLCHJasper, Newton, Tyler6 hr
Aug 27, 8:52 AM CDTTornado WarningLCHJefferson23 min
Aug 27, 9:18 AM CDTTornado WarningLCHHardin, Jasper, Jefferson, Orange27 min
Aug 27, 9:43 AM CDTTornado WarningLCHHardin, Jasper, Jefferson, Orange32 min
Aug 27, 9:55 AM CDTFlash Flood WarningLCHNewton, Orange5 hr
Aug 27, 10:15 AM CDTTornado WarningLCHHardin, Jasper, Orange30 min
Aug 27, 10:43 AM CDTTornado WarningLCHHardin, Jasper, Tyler32 min
Aug 27, 10:47 AM CDTSpecial Weather StatementLCHOrange58 min
Aug 27, 2:31 PM CDTFlash Flood WarningLCHJasper, Newton, Tyler5 hr
Aug 27, 2:47 PM CDTFlash Flood WarningLCHHardin, Jasper, Jefferson, Newton, Orange5 hr
Aug 27, 6:02 PM CDTTornado WarningLCHJefferson28 min
Aug 27, 6:27 PM CDTTornado WarningLCHJefferson33 min

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.