Alert archive / Louisiana / Tornado Warnings in 2016

Tornado Warning 50, NWS Shreveport, LA

April 30, 2016Bossier Parish, Webster Parish, Louisiana; Columbia County, Lafayette County, Arkansas

NWS Shreveport, LA issued this tornado warning at Apr 30, 2016, 12:25 AM CDT for Bossier Parish, Webster Parish, Louisiana; Columbia County, Lafayette County, Arkansas. It was in force for 50 min. 3 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 30, 2016, 12:25 AM CDT (05:25 UTC)
Expired
Apr 30, 2016, 1:15 AM CDT
In force
50 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Columbia County, AR, Lafayette County, AR, Bossier Parish, LA, Webster Parish, LA

The radar

The Shreveport radar (KSHV), 92 km from the middle of the area, began a volume at 05:27 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 30, 12:28 AM CDTTSTM WND DMG2 Ese Bradley, ARTREES DOWN ON POWER LINES ON ARKANSAS HWY 160.
Apr 30, 12:31 AM CDTTSTM WND DMG3 Nw Taylor, ARTREES DOWN ALONG ARKANSAS HWY 53.
Apr 30, 12:41 AM CDTTORNADO8 S Stamps, ARAN EF-1 TORNADO BEGAN JUST SOUTH OF CR 1 IN COLUMBIA COUNTY AND TRAVELED NORTH NORTHEAST INTO LAFAYETTE COUNTY AND LIFTED ALONG CR 21 JUST SOUTH OF CR 81. DAMAGE CONSISTED OF SNAPPED AND UPROOTED TREES. EST. PEAK WINDS 90-100 MPH...PATH LENGTH OF 1.5 MILES...P

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 29, 9:58 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 00:00Z, 5.4 hours before the alert went out and 86 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 2016-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 835 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 2016-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 455 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
835 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
591 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
455 m²/s²
0-3 km storm-relative helicity
577 m²/s²
Significant tornado parameter
2.9
Supercell composite
11.8

Open this sounding in Storm Lab

The text

As transmitted.

581 
WFUS54 KSHV 300525
TORSHV
ARC027-073-LAC015-119-300615-
/O.NEW.KSHV.TO.W.0050.160430T0525Z-160430T0615Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1225 AM CDT SAT APR 30 2016

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN COLUMBIA COUNTY IN SOUTHWESTERN ARKANSAS...
  EASTERN LAFAYETTE COUNTY IN SOUTHWESTERN ARKANSAS...
  NORTH CENTRAL BOSSIER PARISH IN NORTHWESTERN LOUISIANA...
  NORTHWESTERN WEBSTER PARISH IN NORTHWESTERN LOUISIANA...

* UNTIL 115 AM CDT
    
* AT 1225 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR WELCOME...OR 7 MILES NORTHWEST OF
  SPRINGHILL...MOVING NORTH NORTHEAST AT 35 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...
  TAYLOR AND CANFIELD AROUND 1235 AM CDT. 
  BUSSEY AROUND 1240 AM CDT. 
  SMITHLAND AROUND 1250 AM CDT. 
  STAMPS AND BUCKNER AROUND 105 AM CDT. 
  WALDO AROUND 110 AM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE MARS
HILL...LERCH...CORNELIUS...MOUNT VERNON...MCKAMIE AND STATE LINE.

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 3333 9321 3295 9353 3302 9373 3341 9353
TIME...MOT...LOC 0524Z 201DEG 29KT 3305 9355 

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

$$

15
1 follow-up statement
912 
WWUS54 KSHV 300538
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1238 AM CDT SAT APR 30 2016

LAC015-119-300545-
/O.CAN.KSHV.TO.W.0050.000000T0000Z-160430T0615Z/
BOSSIER LA-WEBSTER LA-
1238 AM CDT SAT APR 30 2016

...THE TORNADO WARNING FOR NORTH CENTRAL BOSSIER AND NORTHWESTERN
WEBSTER PARISHES IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FOR
SOUTHWESTERN ARKANSAS.

LAT...LON 3304 9345 3311 9368 3341 9353 3333 9321
TIME...MOT...LOC 0535Z 201DEG 32KT 3316 9349 

$$

ARC027-073-300615-
/O.CON.KSHV.TO.W.0050.000000T0000Z-160430T0615Z/
COLUMBIA AR-LAFAYETTE AR-
1238 AM CDT SAT APR 30 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 AM CDT FOR WESTERN
COLUMBIA AND EASTERN LAFAYETTE COUNTIES...
    
AT 1235 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED OVER BUSSEY...OR 4 MILES NORTHWEST OF TAYLOR
ALONG THE LAFAYETTE AND COLUMBIA COUNTY LINE...MOVING NORTH
NORTHEAST AT 35 MPH. ANOTHER CIRCULATION WAS INDICATED JUST TO THE
WEST ABOUT 7 MILES NORTHEAST OF BRADLEY...ALSO MOVING NORTH
NORTHEAST AT 35 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...
  SMITHLAND AROUND 1245 AM CDT. 
  STAMPS AROUND 1255 AM CDT. 
  BUCKNER AROUND 100 AM CDT. 
  WALDO AROUND 105 AM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE MARS
HILL...LERCH...CORNELIUS...MOUNT VERNON AND MCKAMIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3304 9345 3311 9368 3341 9353 3333 9321
TIME...MOT...LOC 0535Z 201DEG 32KT 3316 9349 

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

$$

15

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 9:54 PM CDTSpecial Weather StatementSHVBossier51 min
Apr 29, 9:58 PM CDTTornado WarningSHVBossier, Caddo32 min
Apr 29, 10:27 PM CDTTornado WarningSHVCaddo33 min
Apr 29, 10:57 PM CDTTornado WarningSHVCaddo33 min
Apr 29, 11:25 PM CDTSevere Thunderstorm WarningSHVBossier, Caddo65 min
Apr 29, 11:30 PM CDTTornado WarningSHVBossier, Caddo30 min
Apr 29, 11:32 PM CDTFlash Flood WarningSHVBossier, Caddo, Webster8 hr
Apr 29, 11:59 PM CDTTornado WarningSHVBossier, Caddo46 min
Apr 30, 12:13 AM CDTSevere Thunderstorm WarningSHVCaddo62 min
Apr 30, 12:35 AM CDTTornado WarningSHVCaddo55 min
Apr 30, 12:58 AM CDTTornado WarningSHVCaddo47 min
Apr 30, 1:27 AM CDTFlash Flood WarningSHVBossier, Claiborne, Webster5 hr
Apr 30, 1:30 AM CDTTornado WarningSHVBossier, Caddo45 min
Apr 30, 3:42 AM CDTAreal Flood AdvisorySHVBossier, Caddo, De Soto3 hr
Apr 30, 4:20 AM CDTRiver Flood WarningSHVDe Soto9 days
Apr 30, 4:30 AM CDTSevere Thunderstorm WarningSHVDe Soto, Natchitoches, Red River, Sabine60 min
Apr 30, 5:31 AM CDTSevere Thunderstorm WarningSHVBienville, De Soto, Red River46 min
Apr 30, 6:01 AM CDTAreal Flood WarningSHVClaiborne, Webster6 hr
Apr 30, 6:15 AM CDTSpecial Weather StatementSHVSabine45 min
Apr 30, 7:27 AM CDTAreal Flood WarningSHVBossier, Caddo6 hr
Apr 30, 7:36 AM CDTRiver Flood WarningSHVCaddo13 days
Apr 30, 8:03 AM CDTTornado WarningSHVBienville, Jackson, Natchitoches, Red River, Winn27 min
Apr 30, 8:09 AM CDTTornado WarningSHVJackson, Lincoln, Union25 min
Apr 30, 10:23 AM CDTSpecial Weather StatementSHVGrant52 min
Apr 30, 11:12 AM CDTRiver Flood WarningSHVCaldwell, Ouachita3 days
Apr 30, 11:18 AM CDTRiver Flood WarningSHVCaldwell, Grant, LaSalle, Winn4 days
Apr 30, 12:08 PM CDTRiver Flood WarningSHVBienville, Bossier, Red River, Webster10 days
Apr 30, 12:08 PM CDTSpecial Weather StatementSHVLaSalle37 min
Apr 30, 12:15 PM CDTRiver Flood WarningSHVBossier, Caddo, Red River8 days
Apr 30, 1:27 PM CDTAreal Flood WarningSHVBossier, Caddo3 hr
Apr 29, 7:24 PM CDTFlash Flood WarningSHVHempstead, Howard, Little River, Nevada, Sevier10 hr
Apr 29, 9:21 PM CDTSpecial Weather StatementSHVHempstead39 min
Apr 29, 10:09 PM CDTSevere Thunderstorm WarningSHVHoward, Little River, Sevier66 min
Apr 29, 11:15 PM CDTSevere Thunderstorm WarningSHVHempstead, Howard, Little River, Nevada, Sevier60 min
Apr 30, 12:58 AM CDTTornado WarningSHVColumbia, Lafayette, Nevada47 min
Apr 30, 2:12 AM CDTSpecial Weather StatementSHVColumbia48 min
Apr 30, 2:44 AM CDTTornado WarningSHVColumbia, Union61 min
Apr 30, 4:17 AM CDTRiver Flood WarningSHVLittle River, Sevier53 hr
Apr 30, 5:21 AM CDTAreal Flood WarningSHVHempstead, Howard, Little River, Nevada, Sevier6 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.