Alert archive / Texas / Tornado Warnings in 2018

Tornado Warning 83, NWS Shreveport, LA

June 10, 2018Sabine County, San Augustine County, Texas

NWS Shreveport, LA issued this tornado warning at Jun 10, 2018, 4:51 PM CDT for Sabine County, San Augustine County, Texas. It was in force for 39 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
Jun 10, 2018, 4:51 PM CDT (21:51 UTC)
Expired
Jun 10, 2018, 5:30 PM CDT
In force
39 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Sabine County, TX, San Augustine County, TX

The radar

The Ft Polk radar (KPOE), 118 km from the middle of the area, began a volume at 21:54 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, 9.9 hours before the alert went out and 138 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 2018-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1196 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 2018-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 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
1196 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
6 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

156 
WFUS54 KSHV 102151
TORSHV
TXC403-405-102230-
/O.NEW.KSHV.TO.W.0083.180610T2151Z-180610T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
451 PM CDT SUN JUN 10 2018

The National Weather Service in Shreveport has issued a

* Tornado Warning for...
  Central San Augustine County in eastern Texas...
  Northwestern Sabine County in eastern Texas...

* Until 530 PM CDT.
    
* At 450 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 10 miles southwest of Macune, or 18 miles north of
  Ebenezer, moving east at 15 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 tornadic thunderstorm will remain over mainly rural areas of
  central San Augustine and northwestern Sabine Counties, including
  the following locations... Chinaquapin and Broaddus.

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!

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Shreveport.

&&

LAT...LON 3125 9432 3136 9431 3143 9404 3120 9406
TIME...MOT...LOC 2150Z 269DEG 14KT 3129 9427 

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

$$

24
1 follow-up statement
740 
WWUS54 KSHV 102213
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
513 PM CDT SUN JUN 10 2018

TXC403-102223-
/O.CAN.KSHV.TO.W.0083.000000T0000Z-180610T2230Z/
Sabine TX-
513 PM CDT SUN JUN 10 2018

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

LAT...LON 3125 9432 3132 9426 3135 9405 3120 9406
TIME...MOT...LOC 2213Z 267DEG 9KT 3129 9421 

$$

TXC405-102230-
/O.CON.KSHV.TO.W.0083.000000T0000Z-180610T2230Z/
San Augustine TX-
513 PM CDT SUN JUN 10 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR SOUTHERN
SAN AUGUSTINE COUNTY...
    
At 513 PM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles south of Macune, or 17 miles north of Ebenezer,
moving east at 10 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.

Locations impacted include...
Broaddus.

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!

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 3125 9432 3132 9426 3135 9405 3120 9406
TIME...MOT...LOC 2213Z 267DEG 9KT 3129 9421 

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

$$

24

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 12:49 PM CDTSpecial Weather StatementSHVShelby41 min
Jun 10, 1:00 PM CDTAreal Flood AdvisorySHVShelby3 hr
Jun 10, 2:02 PM CDTSpecial Weather StatementSHVPanola43 min
Jun 10, 3:34 PM CDTSpecial Weather StatementSHVShelby41 min
Jun 10, 4:19 PM CDTSpecial Weather StatementSHVSabine, San Augustine41 min
Jun 10, 4:48 PM CDTSpecial Weather StatementSHVRusk42 min
Jun 10, 4:53 PM CDTSevere Thunderstorm WarningSHVSmith37 min
Jun 10, 5:22 PM CDTFlash Flood WarningSHVSabine, San Augustine3 hr
Jun 10, 5:31 PM CDTSpecial Weather StatementSHVSabine44 min
Jun 10, 5:36 PM CDTSpecial Weather StatementSHVGregg39 min
Jun 10, 5:51 PM CDTSpecial Weather StatementSHVSmith39 min
Jun 10, 5:55 PM CDTSpecial Weather StatementSHVCass50 min
Jun 10, 6:09 PM CDTSpecial Weather StatementSHVWood51 min
Jun 10, 6:12 PM CDTSpecial Weather StatementSHVPanola48 min
Jun 10, 6:15 PM CDTSpecial Weather StatementSHVSabine45 min
Jun 10, 6:19 PM CDTSpecial Weather StatementSHVSabine41 min
Jun 10, 6:35 PM CDTSpecial Weather StatementSHVWood25 min

Nearby

Tornado Warnings in Texas, 2018Every tornado warning in 2018Tornadoes in 2018

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.