Alert archive / Texas / Tornado Warnings in 2015

Tornado Warning 4, NWS Shreveport, LA

April 9, 2015Rusk County, Texas

NWS Shreveport, LA issued this tornado warning at Apr 9, 2015, 7:05 PM CDT for Rusk County, Texas. It was in force for 40 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: Apr 9, 2015, 7:05 PM CDT (00:05 UTC)
Expired: Apr 9, 2015, 7:45 PM CDT
In force: 40 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Rusk County, TX

The radar

The Shreveport radar (KSHV), 97 km from the middle of the area, began a volume at 00:04 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.

Issued	Product	Office	Lasted
Apr 9, 3:06 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 00:00Z, 0.1 hours before the alert went out and 106 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1023 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1138 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 249 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 8.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

973 
WFUS54 KSHV 100005
TORSHV
TXC401-100045-
/O.NEW.KSHV.TO.W.0004.150410T0005Z-150410T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
705 PM CDT THU APR 9 2015

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN RUSK COUNTY IN NORTHEASTERN TEXAS...

* UNTIL 745 PM CDT

* AT 705 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED JUST SOUTH OF ARP...OR 11 MILES EAST OF WHITEHOUSE...
  MOVING NORTHEAST AT 30 MPH. DAMAGE HAS BEEN REPORTED TO TREES SOUTHWEST OF TROUP
  WITH THIS STORM. IF YOU ARE IN ITS PATH...TAKE COVER NOW!

  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...
  TURNERTOWN AROUND 710 PM CDT.
  OVERTON...NEW LONDON AND JOINERVILLE AROUND 720 PM CDT.
  HENDERSON AROUND 730 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE CHURCH
HILL...CHAPMAN...STEWART...OAK HILL AND MONROE.

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 3210 9498 3227 9498 3237 9481 3237 9467
      3215 9459
TIME...MOT...LOC 0003Z 246DEG 27KT 3218 9503 

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

$$

15

1 follow-up statement

783 
WWUS54 KSHV 100040
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
740 PM CDT THU APR 9 2015

TXC401-100050-
/O.EXP.KSHV.TO.W.0004.000000T0000Z-150410T0045Z/
RUSK TX-
740 PM CDT THU APR 9 2015

...THE TORNADO WARNING FOR NORTHWESTERN RUSK COUNTY WILL EXPIRE AT
745 PM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER HEAVY RAIN
IS STILL POSSIBLE WITH THESE THUNDERSTORMS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR NORTHEASTERN
TEXAS.

LAT...LON 3210 9498 3227 9498 3237 9481 3237 9467
      3215 9459
TIME...MOT...LOC 0039Z 246DEG 27KT 3218 9503 

$$

15

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 7:08 PM CDT	Tornado Warning	SHV	Gregg, Harrison, Marion, Upshur	67 min
Apr 9, 7:16 PM CDT	Areal Flood Advisory	SHV	Cherokee, Gregg, Rusk, Smith, Upshur	119 min
Apr 9, 7:56 PM CDT	Severe Thunderstorm Warning	SHV	Rusk	49 min
Apr 9, 8:01 PM CDT	Tornado Warning	SHV	Rusk	44 min
Apr 9, 8:08 PM CDT	Severe Thunderstorm Warning	SHV	Harrison, Panola, Rusk	67 min
Apr 9, 8:12 PM CDT	Severe Thunderstorm Warning	SHV	Harrison, Marion	33 min
Apr 9, 8:34 PM CDT	Severe Thunderstorm Warning	SHV	Harrison, Marion, Panola	56 min
Apr 9, 8:35 PM CDT	Special Weather Statement	SHV	Red River	40 min
Apr 9, 8:41 PM CDT	Severe Thunderstorm Warning	SHV	Panola, Rusk	34 min
Apr 9, 10:58 PM CDT	Special Weather Statement	SHV	Gregg, Harrison, Marion	47 min

Nearby

Tornado Warnings in Texas, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.