Alert archive / Texas / Tornado Warnings in 2018

Tornado Warning 65, NWS Shreveport, LA

April 13, 20185 counties in Texas

NWS Shreveport, LA issued this tornado warning at Apr 13, 2018, 11:10 PM CDT for 5 counties in Texas. It was in force for 23 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
Apr 13, 2018, 11:10 PM CDT (04:10 UTC)
Expired
Apr 13, 2018, 11:33 PM CDT
In force
23 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Cass County, TX, Gregg County, TX, Harrison County, TX, Marion County, TX, Upshur County, TX

The radar

The Shreveport radar (KSHV), 66 km from the middle of the area, began a volume at 04:14 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

TimeReportWhereRemark
Apr 13, 11:15 PM CDTTORNADO9 Sse Ore City, TXNUMEROUS UP ROOTED TREES AND DOWN POWER LINES IN DIANA, TEXAS ON DUNN BOTTOM RD. OFF HWY 154.

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.

IssuedProductOfficeLasted
Apr 13, 9:53 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 00:00Z, 4.2 hours before the alert went out and 72 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, Shreveport, LA at 00:00Z on 2018-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1539 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, Shreveport, LA at 00:00Z on 2018-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 square meters per square second.19395878Sfc1 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
1539 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
1018 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
1.4
Supercell composite
13.1

Open this sounding in Storm Lab

The text

As transmitted.

650 
WFUS54 KSHV 140410
TORSHV
TXC067-183-203-315-459-140445-
/O.NEW.KSHV.TO.W.0065.180414T0410Z-180414T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
1110 PM CDT FRI APR 13 2018

The National Weather Service in Shreveport has issued a

* Tornado Warning for...
  Marion County in northeastern Texas...
  South central Cass County in northeastern Texas...
  Northern Harrison County in northeastern Texas...
  East central Upshur County in northeastern Texas...
  North central Gregg County in northeastern Texas...

* Until 1145 PM CDT
    
* At 1109 PM CDT, a severe thunderstorm capable of producing a
  tornado was located near Harleton, or 12 miles northeast of
  Longview, moving northeast at 55 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...
  Jefferson and Berea around 1130 PM CDT. 
  Lodi around 1140 PM CDT. 
  Kildare and Smithland around 1145 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Fairview, Lassater, Uncertain, Pruett, Avinger and Nesbitt.

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 3254 9468 3273 9480 3307 9432 3293 9414
      3273 9405
TIME...MOT...LOC 0409Z 238DEG 46KT 3268 9465 

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

$$

FB
3 follow-up statements
321 
WWUS54 KSHV 140417
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
1117 PM CDT FRI APR 13 2018

TXC183-459-140426-
/O.CAN.KSHV.TO.W.0065.000000T0000Z-180414T0445Z/
Upshur TX-Gregg TX-
1117 PM CDT FRI APR 13 2018

...THE TORNADO WARNING FOR EAST CENTRAL UPSHUR AND NORTH CENTRAL
GREGG COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 600 AM CDT for northeastern
Texas.

LAT...LON 3280 9470 3307 9432 3293 9414 3273 9405
      3255 9464 3268 9469
TIME...MOT...LOC 0416Z 240DEG 44KT 3271 9456 

$$

TXC067-203-315-140445-
/O.CON.KSHV.TO.W.0065.000000T0000Z-180414T0445Z/
Marion TX-Cass TX-Harrison TX-
1117 PM CDT FRI APR 13 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR
MARION...SOUTH CENTRAL CASS AND NORTHERN HARRISON COUNTIES...
    
At 1116 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Harleton, or 17 miles northwest of Marshall, moving
northeast at 50 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...
  Jefferson and Berea around 1130 PM CDT. 
  Lodi around 1140 PM CDT. 
  Smithland and Kildare around 1145 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Fairview, Lassater, Uncertain, Pruett, Avinger and Nesbitt.

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 3280 9470 3307 9432 3293 9414 3273 9405
      3255 9464 3268 9469
TIME...MOT...LOC 0416Z 240DEG 44KT 3271 9456 

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

$$

FB
275 
WWUS54 KSHV 140422
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
1122 PM CDT FRI APR 13 2018

TXC067-203-315-140445-
/O.CON.KSHV.TO.W.0065.000000T0000Z-180414T0445Z/
Marion TX-Cass TX-Harrison TX-
1122 PM CDT FRI APR 13 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR
MARION...SOUTH CENTRAL CASS AND NORTHERN HARRISON COUNTIES...
    
At 1122 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Berea, or 14 miles northwest of Marshall, moving
northeast at 50 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...
  Jefferson around 1130 PM CDT. 
  Lodi around 1140 PM CDT. 
  Smithland and Kildare around 1145 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Fairview, Lassater, Uncertain, Pruett and Avinger.

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 3307 9432 3293 9414 3273 9405 3259 9452
      3267 9458 3284 9465
TIME...MOT...LOC 0422Z 242DEG 45KT 3273 9446 

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

$$

FB
280 
WWUS54 KSHV 140433
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
1133 PM CDT FRI APR 13 2018

TXC067-203-315-140443-
/O.CAN.KSHV.TO.W.0065.000000T0000Z-180414T0445Z/
Marion TX-Cass TX-Harrison TX-
1133 PM CDT FRI APR 13 2018

...THE TORNADO WARNING FOR MARION...SOUTH CENTRAL CASS AND NORTHERN
HARRISON COUNTIES IS CANCELLED...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.  

A tornado watch remains in effect until 600 AM CDT for northeastern
Texas.

LAT...LON 3307 9432 3293 9414 3273 9405 3259 9452
      3267 9458 3284 9465
TIME...MOT...LOC 0432Z 238DEG 46KT 3279 9434 

$$

FB

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 7:51 PM CDTTornado WarningSHVBowie25 min
Apr 13, 9:47 PM CDTSpecial Weather StatementSHVWood13 min
Apr 13, 10:00 PM CDTSevere Thunderstorm WarningSHVAngelina, Camp, Cherokee, Franklin, Gregg, Nacogdoches and 4 more60 min
Apr 13, 10:19 PM CDTSpecial Weather StatementSHVBowie, Franklin, Morris, Red River, Titus41 min
Apr 13, 10:57 PM CDTSevere Thunderstorm WarningSHVBowie, Camp, Cass, Franklin, Gregg, Harrison and 9 more33 min
Apr 13, 11:30 PM CDTSevere Thunderstorm WarningSHVBowie, Cass, Harrison, Marion, Panola45 min
Apr 13, 11:54 PM CDTTornado WarningSHVHarrison, Panola21 min
Apr 13, 11:57 PM CDTSpecial Weather StatementSHVAngelina, Nacogdoches, San Augustine, Shelby48 min
Apr 14, 12:15 AM CDTSevere Thunderstorm WarningSHVPanola45 min
Apr 14, 1:10 AM CDTSpecial Weather StatementSHVSabine, San Augustine65 min
Apr 14, 4:24 AM CDTLake Wind AdvisorySHVAngelina, Bowie, Camp, Cass, Cherokee, Franklin and 15 more15 hr

Nearby

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