Alert archive / Texas / Tornado Warnings in 2017

Tornado Warning 88, NWS Lake Charles, LA

August 28, 2017Jasper County, Newton County, Texas

NWS Lake Charles, LA issued this tornado warning at Aug 28, 2017, 9:38 AM CDT for Jasper County, Newton County, Texas. It was in force for 22 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Aug 28, 2017, 9:38 AM CDT (14:38 UTC)
Expired: Aug 28, 2017, 10:00 AM CDT
In force: 22 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Jasper County, TX, Newton County, TX

The radar

The Lake Charles radar (KLCH), 76 km from the middle of the area, began a volume at 14:38 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.

What was reported inside it

Time	Report	Where	Remark
Aug 28, 9:49 AM CDT	TSTM WND DMG	Call, TX	SHERIFFS DEPT REPORTS TREE DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 2.6 hours before the alert went out and 77 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

975 
WFUS54 KLCH 281438
TORLCH
TXC241-351-281500-
/O.NEW.KLCH.TO.W.0088.170828T1438Z-170828T1500Z/

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

The National Weather Service in Lake Charles has issued a

* Tornado Warning for...
  West central Newton County in southeastern Texas...
  East central Jasper County in southeastern Texas...

* Until 1000 AM CDT
    
* At 936 AM CDT, a severe thunderstorm capable of producing a tornado
  was located near Wrights Settlement, or near Call, 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...
  Call around 1000 AM CDT. 

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 3052 9376 3046 9387 3054 9400 3065 9383
TIME...MOT...LOC 1436Z 140DEG 12KT 3052 9386 

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

$$

K. Kuyper

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 27, 7:00 PM CDT	Tornado Warning	LCH	Jefferson	30 min
Aug 27, 7:24 PM CDT	Tornado Warning	LCH	Jefferson	51 min
Aug 27, 7:41 PM CDT	Flash Flood Warning	LCH	Hardin, Jasper, Jefferson, Orange	10 hr
Aug 27, 9:54 PM CDT	Tornado Warning	LCH	Jefferson	36 min
Aug 27, 11:58 PM CDT	Flash Flood Warning	LCH	Newton, Orange	8 hr
Aug 28, 12:19 AM CDT	Tornado Warning	LCH	Jefferson, Orange	26 min
Aug 28, 12:49 AM CDT	Special Weather Statement	LCH	Orange	41 min
Aug 28, 3:42 AM CDT	Tornado Warning	LCH	Jefferson	38 min
Aug 28, 4:55 AM CDT	Special Weather Statement	LCH	Orange	50 min
Aug 28, 5:00 AM CDT	Coastal Flood Advisory	LCH		9 hr
Aug 28, 5:42 AM CDT	Flash Flood Warning Emergency	LCH	Hardin, Jasper, Jefferson, Orange	12 hr
Aug 28, 7:54 AM CDT	Flash Flood Warning	LCH	Newton, Orange	11 hr
Aug 28, 8:05 AM CDT	Flash Flood Warning	LCH	Jasper, Tyler	11 hr
Aug 28, 9:18 AM CDT	River Flood Warning	LCH	Newton	10 days
Aug 28, 10:20 AM CDT	Tropical Storm Warning	LCH		58 hr
Aug 28, 10:31 AM CDT	River Flood Warning	LCH	Jasper, Tyler	11 days
Aug 28, 10:31 AM CDT	River Flood Warning	LCH	Hardin, Jasper	15 days
Aug 28, 2:26 PM CDT	River Flood Warning	LCH	Orange	13 days
Aug 28, 2:30 PM CDT	Tornado Warning	LCH	Jefferson	30 min
Aug 28, 3:14 PM CDT	Tornado Warning	LCH	Jefferson	31 min
Aug 28, 3:42 PM CDT	Tornado Warning	LCH	Hardin, Jefferson	33 min
Aug 28, 4:15 PM CDT	Storm Surge Watch	LCH		51 hr
Aug 28, 5:55 PM CDT	Flash Flood Warning Emergency	LCH	Hardin, Jasper, Jefferson, Newton, Orange	28 hr

Nearby

Tornado Warnings in Texas, 2017 Every tornado warning in 2017 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.