Alert archive / Louisiana / Tornado Warnings in 2016

Tornado Warning 13, NWS Shreveport, LA

March 13, 2016Claiborne Parish, Louisiana; Union County, Arkansas

NWS Shreveport, LA issued this tornado warning at Mar 13, 2016, 7:08 PM CDT for Claiborne Parish, Louisiana; Union County, Arkansas. It was in force for 11 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
Mar 13, 2016, 7:08 PM CDT (00:08 UTC)
Expired
Mar 13, 2016, 7:19 PM CDT
In force
11 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Union County, AR, Claiborne Parish, LA

The radar

The Shreveport radar (KSHV), 121 km from the middle of the area, began a volume at 00:08 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.

IssuedProductOfficeLasted
Mar 13, 2:10 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 00:00Z, 0.1 hours before the alert went out and 112 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 2016-03-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 947 joules per kilogram.LCLEL10008507005003002001001 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 2016-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 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
947 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1702 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.7

Open this sounding in Storm Lab

The text

As transmitted.

795 
WFUS54 KSHV 140008
TORSHV
ARC139-LAC027-140100-
/O.NEW.KSHV.TO.W.0013.160314T0008Z-160314T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
708 PM CDT SUN MAR 13 2016

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN UNION COUNTY IN SOUTH CENTRAL ARKANSAS...
  NORTHEASTERN CLAIBORNE PARISH IN NORTHWESTERN LOUISIANA...

* UNTIL 800 PM CDT
    
* AT 708 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
  WAS LOCATED 10 MILES SOUTHEAST OF ATLANTA...OR 13 MILES NORTHEAST OF
  HOMER...MOVING NORTHEAST 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...
  JUNCTION CITY AND WESSON AROUND 735 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
CATESVILLE...THREE CREEKS...NEWELL AND JUNCTION CITY.

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 9259 3301 9272 3302 9272 3301 9273
      3291 9295 3299 9301 3321 9274
TIME...MOT...LOC 0008Z 231DEG 26KT 3296 9295 

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

$$

MD
1 follow-up statement
143 
WWUS54 KSHV 140019
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
719 PM CDT SUN MAR 13 2016

ARC139-LAC027-140028-
/O.CAN.KSHV.TO.W.0013.000000T0000Z-160314T0100Z/
UNION AR-CLAIBORNE LA-
719 PM CDT SUN MAR 13 2016

...THE TORNADO WARNING FOR SOUTHWESTERN UNION COUNTY IN SOUTH CENTRAL
ARKANSAS AND NORTHEASTERN CLAIBORNE 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 TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT FOR SOUTH CENTRAL
ARKANSAS AND NORTHWESTERN LOUISIANA.

LAT...LON 3307 9259 3301 9272 3302 9272 3301 9273
      3291 9295 3299 9301 3321 9274
TIME...MOT...LOC 0018Z 231DEG 26KT 3301 9288 

$$

MD

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 13, 7:02 PM CDTSevere Thunderstorm WarningSHVClaiborne, Webster44 min
Mar 13, 7:38 PM CDTSevere Thunderstorm WarningSHVUnion67 min
Mar 13, 8:13 PM CDTSpecial Weather StatementSHVUnion47 min
Mar 13, 8:16 PM CDTSevere Thunderstorm WarningSHVUnion24 min
Mar 13, 8:17 PM CDTSevere Thunderstorm WarningSHVJackson, Lincoln, Ouachita, Union17 min
Mar 13, 8:19 PM CDTAreal Flood WarningSHVLaSalle42 hr
Mar 13, 8:22 PM CDTSevere Thunderstorm WarningSHVBienville, Jackson25 min
Mar 13, 8:44 PM CDTFlash Flood Warning EmergencySHVCaldwell21 hr
Mar 13, 8:57 PM CDTSpecial Weather StatementSHVOuachita48 min
Mar 13, 9:05 PM CDTSpecial Weather StatementSHVCaldwell55 min
Mar 13, 9:07 PM CDTSevere Thunderstorm WarningSHVJackson, Ouachita25 min
Mar 13, 9:29 PM CDTSevere Thunderstorm WarningSHVOuachita20 min
Mar 13, 7:08 PM CDTTornado WarningSHVUnion52 min
Mar 13, 7:30 PM CDTTornado WarningSHVHempstead, Nevada33 min
Mar 13, 8:03 PM CDTSevere Thunderstorm WarningSHVHempstead, Nevada42 min
Mar 13, 9:57 PM CDTAreal Flood WarningSHVUnion66 hr

Nearby

Tornado Warnings in Louisiana, 2016Tornado Warnings in Arkansas, 2016Every tornado warning in 2016Tornadoes in 2016

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.