Alert archive / Texas / Tornado Warnings in 2018

Tornado Warning 97, NWS Shreveport, LA

October 31, 2018Bowie County, Texas; Little River County, Arkansas

NWS Shreveport, LA issued this tornado warning at Oct 31, 2018, 5:11 PM CDT for Bowie County, Texas; Little River County, Arkansas. It was in force for 26 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: Oct 31, 2018, 5:11 PM CDT (22:11 UTC)
Expired: Oct 31, 2018, 5:37 PM CDT
In force: 26 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Little River County, AR, Bowie County, TX

The radar

The Shreveport radar (KSHV), 118 km from the middle of the area, began a volume at 22:15 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.

Issued	Product	Office	Lasted
Oct 31, 3:02 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 12:00Z, 10.2 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-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: 273 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 723 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 187 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted.

308 
WFUS54 KSHV 312211
TORSHV
ARC081-TXC037-312300-
/O.NEW.KSHV.TO.W.0097.181031T2211Z-181031T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
511 PM CDT WED OCT 31 2018

The National Weather Service in Shreveport has issued a

* Tornado Warning for...
  South central Little River County in southwestern Arkansas...
  Southeastern Bowie County in northeastern Texas...

* Until 600 PM CDT.
    
* At 511 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near New Boston, moving northeast 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...
  New Boston around 525 PM CDT.
  Hooks around 535 PM CDT.
  Nash and Red Lick around 545 PM CDT.
  Texarkana and Richmond around 555 PM CDT.

Other locations impacted by this tornadic thunderstorm include Leary
and Red Bank.

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 3332 9442 3340 9451 3365 9423 3348 9405
TIME...MOT...LOC 2211Z 232DEG 27KT 3337 9445 

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

$$

35

3 follow-up statements

890 
WWUS54 KSHV 312224
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
524 PM CDT WED OCT 31 2018

ARC081-TXC037-312300-
/O.CON.KSHV.TO.W.0097.000000T0000Z-181031T2300Z/
Little River AR-Bowie TX-
524 PM CDT WED OCT 31 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR SOUTHERN
LITTLE RIVER AND EAST CENTRAL BOWIE COUNTIES...
    
At 524 PM CDT, a severe thunderstorm capable of producing a tornado
was located near New Boston, moving northeast 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...
  Hooks around 535 PM CDT.
  Red Lick around 545 PM CDT.

Other locations impacted by this tornadic thunderstorm include Leary
and Red Bank.

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 3338 9434 3345 9442 3363 9421 3358 9416
      3351 9408
TIME...MOT...LOC 2224Z 232DEG 27KT 3343 9436 

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

$$

35

880 
WWUS54 KSHV 312233
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
533 PM CDT WED OCT 31 2018

ARC081-TXC037-312300-
/O.CON.KSHV.TO.W.0097.000000T0000Z-181031T2300Z/
Little River AR-Bowie TX-
533 PM CDT WED OCT 31 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR SOUTHERN
LITTLE RIVER AND EAST CENTRAL BOWIE COUNTIES...
    
At 533 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Hooks, or 7 miles east of New Boston, moving
northeast 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...
  Red Lick around 545 PM CDT.

Other locations impacted by this tornadic thunderstorm include Leary
and Red Bank.

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 3342 9427 3349 9437 3363 9421 3358 9416
      3351 9408
TIME...MOT...LOC 2233Z 232DEG 27KT 3347 9429 

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

$$

35

572 
WWUS54 KSHV 312237
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
537 PM CDT WED OCT 31 2018

ARC081-TXC037-312247-
/O.CAN.KSHV.TO.W.0097.000000T0000Z-181031T2300Z/
Little River AR-Bowie TX-
537 PM CDT WED OCT 31 2018

...THE TORNADO WARNING FOR SOUTHERN LITTLE RIVER AND EAST CENTRAL
BOWIE COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 PM CDT for southwestern
Arkansas...and northeastern Texas.

LAT...LON 3342 9427 3349 9437 3363 9421 3358 9416
      3351 9408
TIME...MOT...LOC 2236Z 232DEG 27KT 3349 9426 

$$

35

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 31, 10:06 AM CDT	River Flood Warning	SHV	Gregg	24 hr
Oct 31, 10:07 AM CDT	River Flood Warning	SHV	Angelina, Houston, Polk, Trinity, Tyler	7 days
Oct 31, 10:10 AM CDT	River Flood Warning	SHV	Smith, Upshur, Wood	24 hr
Oct 31, 10:11 AM CDT	River Flood Warning	SHV	Nacogdoches, Rusk, San Augustine, Shelby	34 hr
Oct 31, 10:13 AM CDT	River Flood Warning	SHV	Angelina, Cherokee, Nacogdoches	9 days
Oct 31, 4:33 PM CDT	Tornado Warning	SHV	Bowie, Cass, Morris	42 min
Oct 31, 5:22 PM CDT	Special Weather Statement	SHV	Gregg, Upshur	38 min
Oct 31, 6:07 PM CDT	Special Weather Statement	SHV	Cherokee	38 min
Oct 31, 6:35 PM CDT	Special Weather Statement	SHV	Nacogdoches, Rusk	40 min
Oct 31, 6:45 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Nacogdoches, Panola, Rusk, San Augustine, Shelby	60 min
Oct 31, 3:22 PM CDT	Special Weather Statement	SHV	Sevier	53 min
Oct 31, 4:03 PM CDT	Severe Thunderstorm Warning	SHV	Howard, Sevier	42 min
Oct 31, 4:43 PM CDT	Severe Thunderstorm Warning	SHV	Howard, Sevier	47 min

Nearby

Tornado Warnings in Texas, 2018 Tornado Warnings in Arkansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.