Alert archive / Texas / Tornado Warnings in 2015

Tornado Warning 5, NWS Shreveport, LA

April 9, 20154 counties in Texas

NWS Shreveport, LA issued this tornado warning at Apr 9, 2015, 7:08 PM CDT for 4 counties in Texas. It was in force for 67 min. 4 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 9, 2015, 7:08 PM CDT (00:08 UTC)
Expired: Apr 9, 2015, 8:15 PM CDT
In force: 67 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

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

The radar

The Shreveport radar (KSHV), 74 km from the middle of the area, began a volume at 00:09 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

Time	Report	Where	Remark
Apr 9, 7:10 PM CDT	TORNADO	2 E Longview, TX	EF-1 TORNADO NE OF DOWNTOWN LONGVIEW. PATH LENGTH OF 1.32 MILES. PATH WIDTH OF 335 YARDS.
Apr 9, 7:20 PM CDT	TORNADO	6 Ene Longview, TX	EF-1 TORNADO BEGAN 6.5 NW OF HALLSVILLE AND ENDED 4.5 MILES NNW OF HALLSVILLE. PATH LENGTH OF 4.54 MILES. PATH WIDTH OF 760 YARDS.
Apr 9, 7:22 PM CDT	TSTM WND DMG	6 Nw Hallsville, TX	TREES DOWN AND POSSIBLE HOUSE DAMAGE ON CURTIS BLACK ROAD
Apr 9, 7:32 PM CDT	TSTM WND DMG	3 E Longview, TX	ROOF DAMAGE TO A NURSING HOME. NEARBY MOBILE HOME PARK ALSO RECEIVED DAMAGE.

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.

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 82 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.

642 
WFUS54 KSHV 100008
TORSHV
TXC183-203-315-459-100115-
/O.NEW.KSHV.TO.W.0005.150410T0008Z-150410T0115Z/

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

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN HARRISON COUNTY IN NORTHEASTERN TEXAS...
  SOUTHEASTERN UPSHUR COUNTY IN NORTHEASTERN TEXAS...
  SOUTH CENTRAL MARION COUNTY IN NORTHEASTERN TEXAS...
  CENTRAL GREGG COUNTY IN NORTHEASTERN TEXAS...

* UNTIL 815 PM CDT
    
* AT 708 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER LONGVIEW...MOVING EAST AT 30 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...
  HALLSVILLE AROUND 730 PM CDT.
  HARLETON AROUND 735 PM CDT.
  MARSHALL AROUND 800 PM CDT.
  WOODLAWN AROUND 805 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
NESBITT AND JUDSON.

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 3243 9482 3258 9485 3279 9431 3250 9432
TIME...MOT...LOC 0007Z 247DEG 25KT 3252 9476 

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

$$

15

1 follow-up statement

644 
WWUS54 KSHV 100034
SVSSHV

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

TXC183-459-100043-
/O.CAN.KSHV.TO.W.0005.000000T0000Z-150410T0115Z/
UPSHUR TX-GREGG TX-
734 PM CDT THU APR 9 2015

...THE TORNADO WARNING FOR SOUTHEASTERN UPSHUR AND CENTRAL GREGG
COUNTIES IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS EXITED GREGG AND 
SOUTHERN UPSHUR COUNTIES. THEREFORE THE WARNING HAS BEEN CANCELLED.

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

LAT...LON 3250 9464 3262 9466 3279 9431 3250 9432
TIME...MOT...LOC 0033Z 249DEG 23KT 3257 9458 

$$

TXC203-315-100115-
/O.CON.KSHV.TO.W.0005.000000T0000Z-150410T0115Z/
HARRISON TX-MARION TX-
734 PM CDT THU APR 9 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHWESTERN HARRISON AND SOUTH CENTRAL MARION COUNTIES...
    
AT 734 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 4 MILES NORTH OF HALLSVILLE...OR 11 MILES EAST OF LONGVIEW...MOVING
EAST AT 25 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...
  MARSHALL AND WOODLAWN AROUND 810 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
NESBITT.

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 3250 9464 3262 9466 3279 9431 3250 9432
TIME...MOT...LOC 0033Z 249DEG 23KT 3257 9458 

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

$$

15

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 7:05 PM CDT	Tornado Warning	SHV	Rusk	40 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.