Alert archive / Texas / Tornado Warnings in 2013

Tornado Warning 12, NWS Shreveport, LA

February 18, 2013Gregg County, Panola County, Rusk County, Texas

NWS Shreveport, LA issued this tornado warning at Feb 18, 2013, 5:13 PM CST for Gregg County, Panola County, Rusk County, Texas. It was in force for 32 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: Feb 18, 2013, 5:13 PM CST (23:13 UTC)
Expired: Feb 18, 2013, 5:45 PM CST
In force: 32 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon

Counties Gregg County, TX, Panola County, TX, Rusk County, TX

The radar

The Shreveport radar (KSHV), 79 km from the middle of the area, began a volume at 23:14 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
Feb 18, 5:18 PM CST	TORNADO	9 Ese Kilgore, TX	A BRIEF EF-0 TORNADO SNAPPED THE TOPS OUT OF SEVERAL PINE TREES ALONG HWY 322 NEAR BARNES CREEK. THE PATH LENGTH WAS 30 YDS...THE PATH WIDTH WAS 20 YDS...AND THE ESTIMATED MAXIMUM WINDS WERE 70 MPH.
Feb 18, 5:27 PM CST	TORNADO	9 W Tatum, TX	AN EF-0 TORNADO UPROOTED AND SNAPPED THE TOPS OF SEVERAL PINE TREES LONG COUNTY ROAD 2126 AND FM 782. THE PATH LENGTH WAS 1.5 MILES...THE PATH WIDTH WAS 30 YDS...AND THE ESTIMATED MAXIMUM WINDS WERE 70 MPH.
Feb 18, 5:33 PM CST	HAIL 1	13 Se Longview, TX

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
Feb 18, 2:19 PM CST	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 11.2 hours before the alert went out and 88 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 668 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 510 m²/s²
0-3 km storm-relative helicity: 670 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

934 
WFUS54 KSHV 182313
TORSHV
TXC183-365-401-182345-
/O.NEW.KSHV.TO.W.0012.130218T2313Z-130218T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
513 PM CST MON FEB 18 2013

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN GREGG COUNTY IN NORTHEAST TEXAS...
  THIS INCLUDES THE CITY OF KILGORE...
  NORTHWESTERN PANOLA COUNTY IN NORTHEAST TEXAS...
  NORTHERN RUSK COUNTY IN NORTHEAST TEXAS...

* UNTIL 545 PM CST

* AT 509 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR KILGORE...
  MOVING EAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  TATUM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WARNING MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE
STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO
DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...
MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM
WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

&&

LAT...LON 3244 9487 3238 9446 3236 9443 3215 9448
      3227 9493
TIME...MOT...LOC 2313Z 282DEG 21KT 3232 9478

$$

05

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 18, 3:02 PM CST	Severe Thunderstorm Warning	SHV	Bowie, Cass	58 min
Feb 18, 4:26 PM CST	Severe Thunderstorm Warning	SHV	Gregg, Rusk, Smith	49 min
Feb 18, 4:29 PM CST	Severe Thunderstorm Warning	SHV	Cass, Marion	46 min
Feb 18, 5:11 PM CST	Severe Thunderstorm Warning	SHV	Cherokee, Rusk, Smith	34 min
Feb 18, 5:16 PM CST	Severe Thunderstorm Warning	SHV	Harrison, Marion	29 min
Feb 18, 5:26 PM CST	Tornado Warning	SHV	Nacogdoches, Panola, Rusk, Shelby	34 min
Feb 18, 5:45 PM CST	Severe Thunderstorm Warning	SHV	Cherokee, Nacogdoches, Rusk	45 min
Feb 18, 5:45 PM CST	Tornado Warning	SHV	Panola, Rusk	45 min
Feb 18, 5:49 PM CST	Severe Thunderstorm Warning	SHV	Marion	26 min
Feb 18, 5:59 PM CST	Tornado Warning	SHV	Nacogdoches, Panola, Rusk, Shelby	46 min

Nearby

Tornado Warnings in Texas, 2013 Every tornado warning in 2013 Tornadoes in 2013

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.