Alert archive / Texas / Tornado Warnings in 2018

Tornado Warning 49, NWS Shreveport, LA

April 6, 2018Panola County, Shelby County, Texas; De Soto Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at Apr 6, 2018, 8:08 PM CDT for Panola County, Shelby County, Texas; De Soto Parish, Louisiana. It was in force for 10 min. 2 reports 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 6, 2018, 8:08 PM CDT (01:08 UTC)
Expired
Apr 6, 2018, 8:18 PM CDT
In force
10 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties De Soto Parish, LA, Panola County, TX, Shelby County, TX

The radar

The Shreveport radar (KSHV), 62 km from the middle of the area, began a volume at 01:11 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 6, 8:20 PM CDTHAIL 11 Ene Tenaha, TX
Apr 6, 8:23 PM CDTHAIL 2Tenaha, TXPICTURE ON TWITTER.

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 6, 3:20 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 1.1 hours before the alert went out and 225 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, Lake Charles Mun, LA at 00:00Z on 2018-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1528 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, Lake Charles Mun, LA at 00:00Z on 2018-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 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
1528 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
633 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
215 m²/s²
Significant tornado parameter
1.8
Supercell composite
11.9

Open this sounding in Storm Lab

The text

As transmitted.

022 
WFUS54 KSHV 070108
TORSHV
LAC031-TXC365-419-070145-
/O.NEW.KSHV.TO.W.0049.180407T0108Z-180407T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
808 PM CDT FRI APR 6 2018

The National Weather Service in Shreveport has issued a

* Tornado Warning for...
  Southwestern De Soto Parish in northwestern Louisiana...
  Southeastern Panola County in northeastern Texas...
  Northeastern Shelby County in eastern Texas...

* Until 845 PM CDT
    
* At 807 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Tenaha, or 11 miles southeast of Carthage, moving
  southeast at 10 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...
  Tenaha around 820 PM CDT. 
  Joaquin around 845 PM CDT. 

Other locations impacted by this tornadic thunderstorm include Woods,
Stanley, James and Paxton.

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 3198 9436 3213 9424 3200 9385 3175 9402
TIME...MOT...LOC 0107Z 304DEG 8KT 3201 9423 

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

$$

FB
1 follow-up statement
926 
WWUS54 KSHV 070118
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
818 PM CDT FRI APR 6 2018

LAC031-TXC365-419-070127-
/O.CAN.KSHV.TO.W.0049.000000T0000Z-180407T0145Z/
De Soto LA-Panola TX-Shelby TX-
818 PM CDT FRI APR 6 2018

...THE TORNADO WARNING FOR SOUTHWESTERN DE SOTO PARISH...SOUTHEASTERN
PANOLA AND NORTHEASTERN SHELBY 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 1100 PM CDT for northwestern
Louisiana...and eastern and northeastern Texas.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Shreveport.

LAT...LON 3198 9436 3213 9424 3200 9385 3175 9402
TIME...MOT...LOC 0115Z 304DEG 8KT 3200 9421 

$$

FB

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 6, 7:17 PM CDTSpecial Weather StatementSHVPanola43 min
Apr 6, 7:24 PM CDTSevere Thunderstorm WarningSHVHarrison, Panola36 min
Apr 6, 7:44 PM CDTSevere Thunderstorm WarningSHVPanola, Rusk, Shelby46 min
Apr 6, 7:59 PM CDTSevere Thunderstorm WarningSHVHarrison, Panola33 min
Apr 6, 8:02 PM CDTSpecial Weather StatementSHVRusk43 min
Apr 6, 8:21 PM CDTSevere Thunderstorm WarningSHVSabine, San Augustine, Shelby54 min
Apr 6, 8:31 PM CDTSevere Thunderstorm WarningSHVPanola, Rusk, Shelby44 min
Apr 6, 8:32 PM CDTSevere Thunderstorm WarningSHVSmith, Upshur, Wood43 min
Apr 6, 8:34 PM CDTSpecial Weather StatementSHVRusk41 min
Apr 6, 8:44 PM CDTTornado WarningSHVSan Augustine, Shelby19 min
Apr 6, 9:12 PM CDTSevere Thunderstorm WarningSHVAngelina, Nacogdoches, Panola, Rusk, Sabine, San Augustine and 1 more48 min
Apr 6, 9:17 PM CDTSpecial Weather StatementSHVCherokee, Rusk, Smith43 min
Apr 6, 9:56 PM CDTSevere Thunderstorm WarningSHVAngelina, Nacogdoches, Panola, Rusk, Sabine, San Augustine and 1 more64 min
Apr 6, 9:58 PM CDTSpecial Weather StatementSHVCherokee77 min
Apr 6, 11:00 PM CDTSevere Thunderstorm WarningSHVAngelina, Cherokee, Nacogdoches, Sabine, San Augustine60 min
Apr 6, 11:53 PM CDTSevere Thunderstorm WarningSHVAngelina, Nacogdoches, Sabine, San Augustine52 min
Apr 7, 3:40 AM CDTFreeze WarningSHVBowie, Cass, Red River28 hr
Apr 7, 9:08 AM CDTRiver Flood WarningSHVNacogdoches, Rusk, San Augustine, Shelby8 days
Apr 7, 11:34 AM CDTSpecial Weather StatementSHVPanola, Rusk26 min
Apr 6, 7:05 PM CDTSevere Thunderstorm WarningSHVBienville, Jackson, Lincoln40 min
Apr 6, 7:09 PM CDTSevere Thunderstorm WarningSHVCaldwell, Ouachita36 min
Apr 6, 7:10 PM CDTTornado Warning EmergencySHVDe Soto, Red River50 min
Apr 6, 7:19 PM CDTSevere Thunderstorm WarningSHVBienville, Jackson, Natchitoches, Red River, Winn56 min
Apr 6, 7:25 PM CDTTornado WarningSHVBienville, Red River8 min
Apr 6, 7:29 PM CDTSevere Thunderstorm WarningSHVCaldwell, Jackson, Ouachita, Winn46 min
Apr 6, 7:30 PM CDTSevere Thunderstorm WarningSHVBienville, Bossier, Caddo, De Soto, Natchitoches, Red River and 1 more60 min
Apr 6, 7:41 PM CDTTornado WarningSHVBienville, Natchitoches, Winn35 min
Apr 6, 7:43 PM CDTTornado WarningSHVCaldwell, Jackson, Ouachita47 min
Apr 6, 7:57 PM CDTTornado WarningSHVNatchitoches, Red River10 min
Apr 6, 7:59 PM CDTSevere Thunderstorm WarningSHVGrant, Natchitoches, Red River, Winn61 min
Apr 6, 8:13 PM CDTSevere Thunderstorm WarningSHVCaldwell, Jackson, LaSalle, Winn62 min
Apr 6, 8:13 PM CDTTornado WarningSHVDe Soto, Natchitoches, Red River11 min
Apr 6, 8:18 PM CDTTornado WarningSHVNatchitoches, Red River11 min
Apr 6, 8:56 PM CDTSevere Thunderstorm WarningSHVGrant, LaSalle, Natchitoches, Sabine, Winn64 min
Apr 6, 9:17 PM CDTTornado WarningSHVGrant, Natchitoches16 min
Apr 6, 9:55 PM CDTSevere Thunderstorm WarningSHVGrant, LaSalle, Natchitoches, Sabine50 min
Apr 6, 11:42 PM CDTSpecial Weather StatementSHVSabine63 min
Apr 7, 12:40 AM CDTSpecial Weather StatementSHVNatchitoches65 min

Nearby

Tornado Warnings in Texas, 2018Tornado Warnings in Louisiana, 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.