Alert archive / Texas / Tornado Warnings in 2018

Tornado Warning 89, NWS Shreveport, LA

October 13, 2018Cherokee County, Smith County, Texas

NWS Shreveport, LA issued this tornado warning at Oct 13, 2018, 3:21 PM CDT for Cherokee County, Smith County, Texas. It was in force for 54 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: Oct 13, 2018, 3:21 PM CDT (20:21 UTC)
Expired: Oct 13, 2018, 4:15 PM CDT
In force: 54 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

Counties Cherokee County, TX, Smith County, TX

The radar

The Shreveport radar (KSHV), 151 km from the middle of the area, began a volume at 20:25 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
Oct 13, 3:40 PM CDT	HAIL 1	5 S Noonday, TX

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 13, 3:06 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 12:00Z, 8.4 hours before the alert went out and 160 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 988 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

783 
WFUS54 KSHV 132021
TORSHV
TXC073-423-132115-
/O.NEW.KSHV.TO.W.0089.181013T2021Z-181013T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
321 PM CDT SAT OCT 13 2018

The National Weather Service in Shreveport has issued a

* Tornado Warning for...
  Southeastern Smith County in northeastern Texas...
  Northern Cherokee County in northeastern Texas...

* Until 415 PM CDT.
    
* At 320 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 8 miles west of Frankston, or 16 miles southeast of
  Athens, moving east at 35 mph.

  HAZARD...Tornado and golf ball size hail.

  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...
  Reese around 345 PM CDT.
  Jacksonville, Bullard and Mount Selman around 355 PM CDT.
  Mixon around 400 PM CDT.
  Troup around 410 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Concord, Teaselville, New Summerfield and Cuney.

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.

If on or near Lake Palestine, get away from the water and move to 
safe shelter immediately. If you can hear thunder, you are close 
enough to be struck by lightning. Severe thunderstorms can produce 
large capsizing waves, even on small bodies of water. Move into dock 
and seek safe shelter now! Do not be caught on the water in a 
thunderstorm.

&&

LAT...LON 3218 9546 3221 9547 3232 9500 3192 9499
      3196 9545 3199 9545 3201 9543 3204 9544
      3205 9542 3206 9544 3208 9542 3212 9546
      3214 9546 3215 9548
TIME...MOT...LOC 2020Z 265DEG 32KT 3204 9564 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

12

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 13, 9:49 AM CDT	River Flood Warning	SHV	Franklin, Morris, Red River, Titus	10 days
Oct 13, 4:12 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Rusk, Smith	63 min
Oct 13, 4:45 PM CDT	Areal Flood Advisory	SHV	Cherokee, Gregg, Nacogdoches, Rusk, Smith, Upshur and 1 more	3 hr
Oct 13, 5:07 PM CDT	Tornado Warning	SHV	Panola, Rusk	38 min
Oct 13, 5:11 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Gregg, Rusk, Smith	29 min
Oct 13, 5:29 PM CDT	Tornado Warning	SHV	Panola	46 min
Oct 13, 6:13 PM CDT	Tornado Warning	SHV	Panola	7 min
Oct 13, 6:43 PM CDT	Severe Thunderstorm Warning	SHV	Panola	19 min

Nearby

Tornado Warnings in Texas, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.