Alert archive / Louisiana / Tornado Warnings in 2017

Tornado Warning 26, NWS Shreveport, LA

March 24, 2017De Soto Parish, Sabine Parish, Louisiana; Shelby County, Texas

NWS Shreveport, LA issued this tornado warning at Mar 24, 2017, 10:09 PM CDT for De Soto Parish, Sabine Parish, Louisiana; Shelby County, Texas. It was in force for 51 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
Mar 24, 2017, 10:09 PM CDT (03:09 UTC)
Expired
Mar 24, 2017, 11:00 PM CDT
In force
51 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

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

The radar

The Shreveport radar (KSHV), 58 km from the middle of the area, began a volume at 03:12 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
Mar 24, 10:35 PM CDTTORNADO1 Ese Mansfield, LAAN EF1 TORNADO TOUCHED DOWN ALONG PINE STREET, AND THEN MOVED TO THE NORTHEAST ALONG BINNING ROAD. THE PRIMARY DAMAGE WAS SNAPPED PINE TREES. HOWEVER, TWO HOMES HAD TREES FALL ON THEM, AND FOUR OUT BUILDINGS WERE DAMAGED OR DESTROYED BY FALLING TREES.
Mar 24, 10:38 PM CDTTSTM WND DMG2 Se Mansfield, LASEVERAL TREES DOWN ON HOUSES ALONG 175 SOUTHEAST OF MANSFIELD.

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
Mar 24, 9:23 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 00:00Z, 3.2 hours before the alert went out and 62 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 2017-03-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 24 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 2017-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 276 square meters per square second.1939587897Sfc1 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
24 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1519 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
276 m²/s²
0-3 km storm-relative helicity
418 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted.

875 
WFUS54 KSHV 250309
TORSHV
LAC031-085-TXC419-250400-
/O.NEW.KSHV.TO.W.0026.170325T0309Z-170325T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
1009 PM CDT FRI MAR 24 2017

The National Weather Service in Shreveport has issued a

* Tornado Warning for...
  Southwestern De Soto Parish in northwestern Louisiana...
  Northwestern Sabine Parish in northwestern Louisiana...
  Northeastern Shelby County in eastern Texas...

* Until 1100 PM CDT
    
* At 1009 PM CDT, a severe thunderstorm capable of producing a
  tornado was located 11 miles southeast of Logansport, or 17 miles
  southwest of Mansfield, 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...
  Mansfield around 1045 PM CDT. 

Other locations impacted by this tornadic thunderstorm include South
Mansfield, Carmel, Stanley, Reeds Store, Grand Cane and 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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3177 9386 3183 9398 3217 9380 3209 9359
TIME...MOT...LOC 0309Z 208DEG 26KT 3184 9389 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

15
1 follow-up statement
777 
WWUS54 KSHV 250325
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
1025 PM CDT FRI MAR 24 2017

LAC085-TXC419-250334-
/O.CAN.KSHV.TO.W.0026.000000T0000Z-170325T0400Z/
Sabine LA-Shelby TX-
1025 PM CDT FRI MAR 24 2017

...THE TORNADO WARNING FOR NORTHWESTERN SABINE PARISH IN NORTHWESTERN
LOUISIANA AND NORTHEASTERN SHELBY 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 300 AM CDT for northwestern
Louisiana.

LAT...LON 3190 9375 3194 9392 3217 9380 3209 9359
TIME...MOT...LOC 0324Z 203DEG 33KT 3200 9381 

$$

LAC031-250400-
/O.CON.KSHV.TO.W.0026.000000T0000Z-170325T0400Z/
De Soto LA-
1025 PM CDT FRI MAR 24 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
SOUTHWESTERN DE SOTO PARISH...
    
At 1025 PM CDT, a severe thunderstorm capable of producing a tornado 
was located 5 miles west southwest of Mansfield, moving northeast at 
40 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...
  Mansfield around 1035 PM CDT. 

Other locations impacted by this tornadic thunderstorm include South
Mansfield, Carmel, Stanley, Reeds Store and Grand Cane.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3190 9375 3194 9392 3217 9380 3209 9359
TIME...MOT...LOC 0324Z 203DEG 33KT 3200 9381 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

15

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 24, 8:02 PM CDTSevere Thunderstorm WarningSHVCaddo43 min
Mar 24, 9:00 PM CDTSevere Thunderstorm WarningSHVBossier, Caddo45 min
Mar 24, 9:32 PM CDTSevere Thunderstorm WarningSHVBossier, Claiborne, Webster43 min
Mar 24, 9:38 PM CDTSevere Thunderstorm WarningSHVDe Soto, Sabine37 min
Mar 24, 10:13 PM CDTSevere Thunderstorm WarningSHVDe Soto, Natchitoches, Red River, Sabine47 min
Mar 24, 10:46 PM CDTTornado WarningSHVBienville, Bossier, De Soto, Red River44 min
Mar 24, 11:00 PM CDTSevere Thunderstorm WarningSHVBienville, Grant, Jackson, Natchitoches, Red River, Sabine and 1 more60 min
Mar 24, 11:03 PM CDTTornado WarningSHVNatchitoches, Winn28 min
Mar 24, 11:38 PM CDTAreal Flood AdvisorySHVSabine3 hr
Mar 25, 12:00 AM CDTSevere Thunderstorm WarningSHVBienville, Caldwell, Grant, Jackson, Natchitoches, Ouachita and 1 more60 min
Mar 25, 12:03 AM CDTTornado WarningSHVJackson27 min
Mar 24, 7:24 PM CDTSpecial Weather StatementSHVBowie, Camp, Cass, Gregg, Marion, Morris and 1 more51 min
Mar 24, 7:27 PM CDTSpecial Weather StatementSHVCherokee, Rusk48 min
Mar 24, 8:16 PM CDTSevere Thunderstorm WarningSHVGregg, Harrison, Marion, Panola, Rusk44 min
Mar 24, 8:37 PM CDTTornado WarningSHVHarrison, Marion23 min
Mar 24, 8:55 PM CDTSevere Thunderstorm WarningSHVAngelina, Nacogdoches, San Augustine65 min
Mar 24, 9:25 PM CDTSevere Thunderstorm WarningSHVAngelina, Nacogdoches, Sabine, San Augustine50 min
Mar 24, 10:32 PM CDTTornado WarningSHVSabine28 min

Nearby

Tornado Warnings in Louisiana, 2017Tornado Warnings in Texas, 2017Every tornado warning in 2017Tornadoes in 2017

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.