Alert archive / Louisiana / Tornado Warnings in 2019

Tornado Warning 13, NWS Shreveport, LA

April 7, 2019De Soto Parish, Sabine Parish, Louisiana; Shelby County, Texas

NWS Shreveport, LA issued this tornado warning at Apr 7, 2019, 1:00 PM CDT for De Soto Parish, Sabine Parish, Louisiana; Shelby County, Texas. It was in force for 12 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
Apr 7, 2019, 1:00 PM CDT (18:00 UTC)
Expired
Apr 7, 2019, 1:12 PM CDT
In force
12 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

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

The radar

The Shreveport radar (KSHV), 78 km from the middle of the area, began a volume at 18:02 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 nearest sounding before it

Shreveport, LA (KBAD), launched 12:00Z, 6.0 hours before the alert went out and 81 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 12:00Z on 2019-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1489 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 12:00Z on 2019-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 224 square meters per square second.193958Sfc1 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
1489 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
516 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
224 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
2.2
Supercell composite
12.0

Open this sounding in Storm Lab

The text

As transmitted.

155 
WFUS54 KSHV 071800
TORSHV
LAC031-085-TXC419-071845-
/O.NEW.KSHV.TO.W.0013.190407T1800Z-190407T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
100 PM CDT Sun Apr 7 2019

The National Weather Service in Shreveport has issued a

* Tornado Warning for...
  Southern De Soto Parish in northwestern Louisiana...
  Northwestern Sabine Parish in northwestern Louisiana...
  East central Shelby County in eastern Texas...

* Until 145 PM CDT.
    
* At 1259 PM CDT, a severe thunderstorm capable of producing a
  tornado was located 8 miles southwest of Converse, or 21 miles east
  of Center, moving northeast at 15 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 tornadic thunderstorm will remain over mainly rural areas of
  southern De Soto, northwestern Sabine Parishes in northwestern
  Louisiana and east central Shelby Counties, including the following
  locations... Huxley.

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 3169 9379 3171 9387 3185 9381 3183 9369
TIME...MOT...LOC 1759Z 207DEG 13KT 3172 9383 

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

$$

Duplantis
2 follow-up statements
444 
WWUS54 KSHV 071808
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
108 PM CDT Sun Apr 7 2019

TXC419-071818-
/O.CAN.KSHV.TO.W.0013.000000T0000Z-190407T1845Z/
Shelby TX-
108 PM CDT Sun Apr 7 2019

...THE TORNADO WARNING FOR EAST CENTRAL SHELBY COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3172 9377 3174 9382 3177 9382 3185 9381
      3183 9369
TIME...MOT...LOC 1808Z 207DEG 13KT 3175 9381 

$$

LAC031-085-071845-
/O.CON.KSHV.TO.W.0013.000000T0000Z-190407T1845Z/
De Soto LA-Sabine LA-
108 PM CDT Sun Apr 7 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR SOUTHERN
DE SOTO AND NORTHWESTERN SABINE PARISHES...
    
At 108 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Converse, or 20 miles south of Mansfield, moving
northeast at 15 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 tornadic thunderstorm will remain over mainly rural areas of
southern De Soto and northwestern Sabine Parishes.

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 3172 9377 3174 9382 3177 9382 3185 9381
      3183 9369
TIME...MOT...LOC 1808Z 207DEG 13KT 3175 9381 

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

$$

Duplantis
504 
WWUS54 KSHV 071812
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
112 PM CDT Sun Apr 7 2019

LAC031-085-071821-
/O.CAN.KSHV.TO.W.0013.000000T0000Z-190407T1845Z/
De Soto LA-Sabine LA-
112 PM CDT Sun Apr 7 2019

...THE TORNADO WARNING FOR SOUTHERN DE SOTO AND NORTHWESTERN SABINE
PARISHES 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 Severe Thunderstorm Watch remains in effect until 900 PM CDT for
northwestern Louisiana.

LAT...LON 3172 9377 3174 9382 3177 9382 3185 9381
      3183 9369
TIME...MOT...LOC 1809Z 207DEG 13KT 3176 9380 

$$

Duplantis

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 6, 7:23 PM CDTAreal Flood AdvisorySHVJackson, Lincoln, Union112 min
Apr 6, 7:42 PM CDTFlash Flood WarningSHVJackson, Lincoln, Union3 hr
Apr 6, 8:06 PM CDTSevere Thunderstorm WarningSHVGrant, Natchitoches, Winn39 min
Apr 6, 8:28 PM CDTAreal Flood AdvisorySHVGrant, Natchitoches, Winn2 hr
Apr 6, 8:42 PM CDTAreal Flood AdvisorySHVGrant, Natchitoches, Winn2 hr
Apr 6, 8:53 PM CDTSevere Thunderstorm WarningSHVGrant, Jackson, Natchitoches, Winn37 min
Apr 6, 9:28 PM CDTSevere Thunderstorm WarningSHVJackson, Winn47 min
Apr 6, 9:32 PM CDTSevere Thunderstorm WarningSHVJackson, Lincoln, Ouachita, Union43 min
Apr 6, 9:34 PM CDTSevere Thunderstorm WarningSHVCaldwell, Grant, LaSalle, Winn41 min
Apr 6, 10:17 PM CDTSpecial Weather StatementSHVWinn43 min
Apr 6, 10:19 PM CDTSpecial Weather StatementSHVLaSalle41 min
Apr 6, 10:42 PM CDTSpecial Weather StatementSHVUnion33 min
Apr 6, 11:16 PM CDTSpecial Weather StatementSHVNatchitoches, Winn59 min
Apr 6, 11:18 PM CDTSpecial Weather StatementSHVCaldwell57 min
Apr 6, 11:26 PM CDTAreal Flood AdvisorySHVGrant, Natchitoches, Winn3 hr
Apr 6, 11:27 PM CDTAreal Flood AdvisorySHVCaldwell, Grant, LaSalle, Winn3 hr
Apr 7, 12:11 AM CDTSpecial Weather StatementSHVCaldwell64 min
Apr 7, 12:56 AM CDTAreal Flood AdvisorySHVCaldwell, Jackson, Ouachita, Winn3 hr
Apr 7, 3:02 AM CDTSpecial Weather StatementSHVBossier43 min
Apr 7, 3:31 AM CDTSevere Thunderstorm WarningSHVBienville, Claiborne, Webster44 min
Apr 7, 4:01 AM CDTSevere Thunderstorm WarningSHVClaiborne, Lincoln, Union59 min
Apr 7, 4:59 AM CDTSpecial Weather StatementSHVUnion46 min
Apr 7, 5:11 AM CDTSpecial Weather StatementSHVUnion49 min
Apr 7, 6:43 AM CDTSevere Thunderstorm WarningSHVBossier, Webster62 min
Apr 7, 7:56 AM CDTAreal Flood AdvisorySHVClaiborne, Webster4 hr
Apr 7, 10:01 AM CDTRiver Flood WarningSHVWebster52 days
Apr 7, 10:01 AM CDTRiver Flood WarningSHVBienville, Bossier, Webster21 days
Apr 7, 10:04 AM CDTAreal Flood AdvisorySHVCaddo3 hr
Apr 7, 10:28 AM CDTRiver Flood WarningSHVCaldwell, Grant, LaSalle, Winn21 days
Apr 7, 1:23 PM CDTSpecial Weather StatementSHVClaiborne52 min
Apr 7, 1:56 PM CDTSpecial Weather StatementSHVGrant49 min
Apr 7, 1:58 PM CDTSpecial Weather StatementSHVSabine47 min
Apr 7, 2:22 PM CDTSevere Thunderstorm WarningSHVGrant, Natchitoches, Sabine, Winn53 min
Apr 7, 2:24 PM CDTSevere Thunderstorm WarningSHVOuachita52 min
Apr 7, 2:28 PM CDTSevere Thunderstorm WarningSHVUnion47 min
Apr 7, 2:35 PM CDTSevere Thunderstorm WarningSHVGrant, LaSalle, Winn39 min
Apr 7, 2:45 PM CDTSevere Thunderstorm WarningSHVSabine60 min
Apr 7, 2:58 PM CDTAreal Flood AdvisorySHVBienville, Claiborne, Lincoln, Union3 hr
Apr 7, 2:59 PM CDTSevere Thunderstorm WarningSHVUnion61 min
Apr 7, 3:13 PM CDTSevere Thunderstorm WarningSHVBienville, De Soto, Natchitoches, Red River, Sabine, Winn62 min
Apr 7, 3:19 PM CDTSevere Thunderstorm WarningSHVOuachita26 min
Apr 7, 3:35 PM CDTSevere Thunderstorm WarningSHVBienville, Claiborne, Jackson, Lincoln, Union41 min
Apr 7, 3:45 PM CDTSevere Thunderstorm WarningSHVOuachita20 min
Apr 7, 3:51 PM CDTSevere Thunderstorm WarningSHVDe Soto, Sabine54 min
Apr 7, 3:57 PM CDTSevere Thunderstorm WarningSHVBienville, Bossier, Caddo, Claiborne, De Soto, Lincoln and 3 more63 min
Apr 7, 4:08 PM CDTAreal Flood AdvisorySHVBienville, De Soto, Jackson, Lincoln, Natchitoches, Red River and 3 more3 hr
Apr 7, 4:28 PM CDTSevere Thunderstorm WarningSHVGrant, Natchitoches40 min
Apr 7, 4:40 PM CDTAreal Flood AdvisorySHVBienville, Bossier, Caddo, Claiborne, De Soto, Red River and 1 more3 hr
Apr 7, 4:52 PM CDTAreal Flood AdvisorySHVCaldwell, Grant, Jackson, LaSalle, Natchitoches, Winn3 hr
Apr 7, 4:56 PM CDTSevere Thunderstorm WarningSHVGrant, Winn16 min
Apr 7, 5:26 PM CDTFlash Flood WarningSHVClaiborne, Webster6 hr
Apr 7, 6:03 PM CDTSpecial Weather StatementSHVOuachita27 min
Apr 7, 6:35 PM CDTAreal Flood AdvisorySHVJackson, Lincoln, Ouachita3 hr
Apr 6, 7:13 PM CDTSevere Thunderstorm WarningSHVNacogdoches, Panola, Rusk, Shelby23 min
Apr 6, 8:09 PM CDTSpecial Weather StatementSHVPanola51 min
Apr 6, 8:15 PM CDTSevere Thunderstorm WarningSHVCherokee, Nacogdoches21 min
Apr 6, 8:53 PM CDTSpecial Weather StatementSHVShelby52 min
Apr 6, 9:14 PM CDTSevere Thunderstorm WarningSHVSan Augustine, Shelby46 min
Apr 7, 3:40 AM CDTSpecial Weather StatementSHVUpshur50 min
Apr 7, 4:21 AM CDTSpecial Weather StatementSHVGregg54 min
Apr 7, 5:07 AM CDTSpecial Weather StatementSHVSmith38 min
Apr 7, 5:43 AM CDTSpecial Weather StatementSHVCamp47 min
Apr 7, 5:45 AM CDTSpecial Weather StatementSHVCass60 min
Apr 7, 6:07 AM CDTSpecial Weather StatementSHVUpshur38 min
Apr 7, 6:16 AM CDTSevere Thunderstorm WarningSHVCamp, Cass, Marion, Morris, Upshur59 min
Apr 7, 7:07 AM CDTSevere Thunderstorm WarningSHVBowie, Cass53 min
Apr 7, 9:16 AM CDTSpecial Weather StatementSHVHarrison44 min
Apr 7, 9:30 AM CDTSpecial Weather StatementSHVRusk60 min
Apr 7, 10:00 AM CDTRiver Flood WarningSHVNacogdoches, Rusk, San Augustine, Shelby3 days
Apr 7, 11:25 AM CDTRiver Flood WarningSHVGregg, Smith, Upshur, Wood21 days
Apr 7, 11:25 AM CDTRiver Flood WarningSHVAnderson, Cherokee, Houston68 days
Apr 7, 11:25 AM CDTRiver Flood WarningSHVAnderson, Cherokee, Houston, Trinity6 days
Apr 7, 11:50 AM CDTRiver Flood WarningSHVGregg57 hr
Apr 7, 2:47 PM CDTTornado WarningSHVAngelina, Nacogdoches17 min
Apr 7, 4:32 PM CDTSevere Thunderstorm WarningSHVGregg, Harrison, Panola, Rusk47 min
Apr 7, 4:43 PM CDTAreal Flood AdvisorySHVGregg, Harrison, Panola, Rusk, Shelby, Upshur3 hr

Nearby

Tornado Warnings in Louisiana, 2019Tornado Warnings in Texas, 2019Every tornado warning in 2019Tornadoes in 2019

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.