Alert archive / Texas / Tornado Warnings in 2016

Tornado Warning 28, NWS Shreveport, LA

April 11, 2016Harrison County, Marion County, Upshur County, Texas

NWS Shreveport, LA issued this tornado warning at Apr 11, 2016, 6:20 PM CDT for Harrison County, Marion County, Upshur County, Texas. It was in force for 40 min. 5 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 11, 2016, 6:20 PM CDT (23:20 UTC)
Expired
Apr 11, 2016, 7:00 PM CDT
In force
40 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Harrison County, TX, Marion County, TX, Upshur County, TX

The radar

The Shreveport radar (KSHV), 100 km from the middle of the area, began a volume at 23:24 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 11, 6:24 PM CDTTSTM WND DMGGilmer, TXA LARGE TREE WAS BLOWN DOWN BEHIND A HOME IN GILMER.
Apr 11, 6:24 PM CDTHAIL 1.75Gilmer, TXA PICTURE WAS POSTED TO THE KLTV FACEBOOK PAGE OF LARGE HAIL ESTIMATED TO BE THE SIZE OF GOLFBALLS THAT FELL IN GILMER.
Apr 11, 6:40 PM CDTHAIL 1.755 Ssw Ore City, TXGOLFBALL SIZE HAIL FELL IN THE DIANA COMMUNITY.
Apr 11, 6:44 PM CDTHAIL 1.757 Ssw Ore City, TXPHOTO FROM KLTV FACEBOOK PAGE SHOWS GOLFBALL SIZE HAIL IN DIANA COMMUNITY.
Apr 11, 6:45 PM CDTHAIL 2.75Bettie, TXBASEBALL SIZED HAIL REPORTED AT UNION HILL HIGH SCHOOL...

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 11, 1:38 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 12:00Z, 11.3 hours before the alert went out and 107 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 2016-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 520 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 2016-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 270 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
520 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
585 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
270 m²/s²
0-3 km storm-relative helicity
389 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.2

Open this sounding in Storm Lab

The text

As transmitted.

615 
WFUS54 KSHV 112320
TORSHV
TXC203-315-459-120000-
/O.NEW.KSHV.TO.W.0028.160411T2320Z-160412T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
620 PM CDT MON APR 11 2016

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN HARRISON COUNTY IN NORTHEASTERN TEXAS...
  WESTERN MARION COUNTY IN NORTHEASTERN TEXAS...
  NORTHEASTERN UPSHUR COUNTY IN NORTHEASTERN TEXAS...

* UNTIL 700 PM CDT
    
* AT 619 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
  WAS LOCATED 6 MILES NORTH OF GILMER...MOVING EAST AT 35 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...
  CEDAR SPRINGS AROUND 635 PM CDT. 
  ORE CITY AROUND 640 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE MIDWAY
AND BETTIE.

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!

&&

LAT...LON 3290 9499 3287 9450 3263 9456 3275 9505
TIME...MOT...LOC 2319Z 277DEG 32KT 3284 9492 

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

$$

06
1 follow-up statement
099 
WWUS54 KSHV 112336
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
636 PM CDT MON APR 11 2016

TXC203-315-459-120000-
/O.CON.KSHV.TO.W.0028.000000T0000Z-160412T0000Z/
HARRISON TX-MARION TX-UPSHUR TX-
636 PM CDT MON APR 11 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
NORTHWESTERN HARRISON...WESTERN MARION AND NORTHEASTERN UPSHUR
COUNTIES...
    
AT 635 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR ORE CITY...OR 13 MILES EAST OF GILMER...MOVING EAST 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...
  HARLETON AROUND 650 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM AT NIGHT. DO NOT
WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW!

&&

LAT...LON 3287 9473 3287 9450 3263 9456 3269 9481
TIME...MOT...LOC 2335Z 281DEG 34KT 3275 9472 

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

$$

06

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 10:40 AM CDTSpecial Weather StatementSHVBowie, Titus35 min
Apr 11, 10:51 AM CDTSevere Thunderstorm WarningSHVBowie, Morris, Red River, Titus39 min
Apr 11, 12:02 PM CDTSevere Thunderstorm WarningSHVBowie58 min
Apr 11, 3:55 PM CDTSevere Thunderstorm WarningSHVRed River50 min
Apr 11, 4:44 PM CDTSevere Thunderstorm WarningSHVBowie, Red River61 min
Apr 11, 5:02 PM CDTSevere Thunderstorm WarningSHVFranklin, Wood58 min
Apr 11, 5:29 PM CDTTornado WarningSHVCamp, Franklin, Upshur, Wood61 min
Apr 11, 5:52 PM CDTSevere Thunderstorm WarningSHVCamp, Franklin, Gregg, Morris, Upshur, Wood53 min
Apr 11, 6:43 PM CDTSevere Thunderstorm WarningSHVGregg, Harrison, Marion, Upshur62 min
Apr 11, 6:55 PM CDTTornado WarningSHVHarrison, Marion53 min

Nearby

Tornado Warnings in Texas, 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.