Alert archive / Texas / Tornado Warnings in 2018

Tornado Warning 95, NWS Shreveport, LA

October 14, 2018Upshur County, Texas

NWS Shreveport, LA issued this tornado warning at Oct 14, 2018, 9:12 PM CDT for Upshur County, Texas. It was in force for 33 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 14, 2018, 9:12 PM CDT (02:12 UTC)
Expired: Oct 14, 2018, 9:45 PM CDT
In force: 33 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Upshur County, TX

The radar

The Shreveport radar (KSHV), 94 km from the middle of the area, began a volume at 02:13 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 14, 7:07 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 00:00Z, 2.2 hours before the alert went out and 101 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: 1259 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 971 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 194 m²/s²
0-3 km storm-relative helicity: 173 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 10.0

Open this sounding in Storm Lab

The text

As transmitted.

609 
WFUS54 KSHV 150212
TORSHV
TXC459-150245-
/O.NEW.KSHV.TO.W.0095.181015T0212Z-181015T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
912 PM CDT SUN OCT 14 2018

The National Weather Service in Shreveport has issued a

* Tornado Warning for...
  Northeastern Upshur County in northeastern Texas...

* Until 945 PM CDT.
    
* At 912 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles northeast of Gilmer, moving east at 30 mph.

  HAZARD...Tornado and quarter 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...
  Ore City and Cedar Springs around 930 PM 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 or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 3291 9474 3290 9472 3289 9471 3286 9471
      3286 9470 3284 9470 3284 9469 3283 9468
      3282 9470 3277 9470 3273 9486 3281 9491
TIME...MOT...LOC 0212Z 248DEG 24KT 3279 9484 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

13

2 follow-up statements

512 
WWUS54 KSHV 150220
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
920 PM CDT SUN OCT 14 2018

TXC459-150245-
/O.CON.KSHV.TO.W.0095.000000T0000Z-181015T0245Z/
Upshur TX-
920 PM CDT SUN OCT 14 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
NORTHEASTERN UPSHUR COUNTY...
    
At 920 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Ore City, or 10 miles northeast of Gilmer, moving
east northeast at 25 mph.

HAZARD...Tornado and quarter 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...
  Ore City and Cedar Springs around 930 PM 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 or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 3291 9474 3290 9472 3289 9471 3286 9471
      3286 9470 3284 9470 3284 9469 3283 9468
      3282 9470 3277 9470 3276 9480 3285 9484
TIME...MOT...LOC 0220Z 248DEG 22KT 3281 9479 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

13

024 
WWUS54 KSHV 150240
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
940 PM CDT SUN OCT 14 2018

TXC459-150250-
/O.EXP.KSHV.TO.W.0095.000000T0000Z-181015T0245Z/
Upshur TX-
940 PM CDT SUN OCT 14 2018

...THE TORNADO WARNING FOR NORTHEASTERN UPSHUR COUNTY WILL EXPIRE AT
945 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
northeastern Texas.

LAT...LON 3291 9474 3290 9472 3289 9471 3286 9471
      3286 9470 3284 9470 3284 9469 3283 9468
      3282 9470 3277 9470 3276 9480 3285 9484
TIME...MOT...LOC 0240Z 248DEG 24KT 3286 9465 

$$

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 14, 7:56 PM CDT	Special Weather Statement	SHV	Wood	49 min
Oct 14, 8:20 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Upshur, Wood	40 min
Oct 14, 8:21 PM CDT	Tornado Warning	SHV	Upshur, Wood	39 min
Oct 14, 8:55 PM CDT	Severe Thunderstorm Warning	SHV	Smith	44 min
Oct 14, 8:59 PM CDT	Special Weather Statement	SHV	Upshur	46 min
Oct 14, 9:02 PM CDT	Special Weather Statement	SHV	Wood	43 min
Oct 14, 9:42 PM CDT	Special Weather Statement	SHV	Marion	48 min
Oct 14, 10:25 PM CDT	River Flood Warning	SHV	Franklin, Morris, Titus	9 days
Oct 14, 10:26 PM CDT	River Flood Warning	SHV	Smith, Wood	41 days
Oct 14, 10:30 PM CDT	Special Weather Statement	SHV	Smith	45 min
Oct 14, 11:18 PM CDT	Special Weather Statement	SHV	Smith	42 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.