Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 21, NWS Shreveport, LA

January 29, 2013Angelina County, Cherokee County, Nacogdoches County, Texas

NWS Shreveport, LA issued this severe thunderstorm warning at Jan 29, 2013, 8:10 PM CST for Angelina County, Cherokee County, Nacogdoches County, Texas. It was in force for 65 min. 1 report 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: Jan 29, 2013, 8:10 PM CST (02:10 UTC)
Expired: Jan 29, 2013, 9:15 PM CST
In force: 65 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon

Counties Angelina County, TX, Cherokee County, TX, Nacogdoches County, TX

What was reported inside it

Time	Report	Where	Remark
Jan 29, 8:40 PM CST	TSTM WND DMG	Nacogdoches, TX	TREE THROUGH A WOOD FRAME HOUSE DOING DAMAGE TO MUCH OF THE KITCHEN.

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
Jan 29, 5:37 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 2.2 hours before the alert went out and 150 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: 1413 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 679 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 291 m²/s²
0-3 km storm-relative helicity: 335 m²/s²
Significant tornado parameter: 3.1
Supercell composite: 10.4

Open this sounding in Storm Lab

The text

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

382 
WUUS54 KSHV 300210
SVRSHV
TXC005-073-347-300315-
/O.NEW.KSHV.SV.W.0021.130130T0210Z-130130T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
810 PM CST TUE JAN 29 2013

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ANGELINA COUNTY IN EASTERN TEXAS...
  THIS INCLUDES THE CITIES OF...LUFKIN...DIBOLL...
  NACOGDOCHES COUNTY IN EASTERN TEXAS...
  THIS INCLUDES THE CITY OF NACOGDOCHES...
  SOUTHEASTERN CHEROKEE COUNTY IN NORTHEAST TEXAS...

* UNTIL 915 PM CST

* AT 809 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM TRAWICK TO 17 MILES SOUTHWEST OF WELLS...MOVING SOUTHEAST AT  
  40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  POLLOK...GARRISON...HUDSON...MELROSE...WODEN...MARTINSVILLE...     
  HUNTINGTON...ETOILE AND LUFKIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 3113 9483 3126 9490 3132 9491 3135 9496
      3139 9496 3144 9502 3147 9511 3151 9511
      3153 9513 3177 9493 3177 9495 3179 9498
      3184 9493 3185 9445 3166 9440 3158 9431
      3123 9433 3132 9444 3108 9462
TIME...MOT...LOC 0209Z 290DEG 27KT 3178 9470 3127 9508

$$

13

1 follow-up statement

882 
WWUS54 KSHV 300256
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
856 PM CST TUE JAN 29 2013

TXC073-300306-
/O.CAN.KSHV.SV.W.0021.000000T0000Z-130130T0315Z/
CHEROKEE TX-
856 PM CST TUE JAN 29 2013

...THE SEVERE THUNDERSTORM WARNING FOR CHEROKEE COUNTY IS
CANCELLED...

LAT...LON 3113 9482 3121 9487 3123 9487 3126 9490
      3129 9489 3130 9491 3133 9491 3185 9469
      3185 9445 3164 9440 3158 9431 3123 9433
      3132 9444 3108 9462
TIME...MOT...LOC 0256Z 290DEG 27KT 3169 9440 3112 9473

$$

TXC005-347-300315-
/O.CON.KSHV.SV.W.0021.000000T0000Z-130130T0315Z/
NACOGDOCHES TX-ANGELINA TX-
856 PM CST TUE JAN 29 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CST
FOR ANGELINA AND NACOGDOCHES COUNTIES...

AT 856 PM CST...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM MARTINSVILLE TO DIBOLL...MOVING
SOUTHEAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HUNTINGTON...ATTOYAC...ETOILE...SHAWNEE AND CHIRENO

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 3113 9482 3121 9487 3123 9487 3126 9490
      3129 9489 3130 9491 3133 9491 3185 9469
      3185 9445 3164 9440 3158 9431 3123 9433
      3132 9444 3108 9462
TIME...MOT...LOC 0256Z 290DEG 27KT 3169 9440 3112 9473

$$

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 29, 6:02 PM CST	Severe Thunderstorm Warning	SHV	Franklin, Wood	58 min
Jan 29, 6:14 PM CST	Severe Thunderstorm Warning	SHV	Franklin, Red River, Titus	46 min
Jan 29, 6:24 PM CST	Severe Thunderstorm Warning	SHV	Smith, Wood	66 min
Jan 29, 6:52 PM CST	Severe Thunderstorm Warning	SHV	Bowie, Camp, Cass, Morris, Red River, Titus and 1 more	38 min
Jan 29, 7:17 PM CST	Severe Thunderstorm Warning	SHV	Cass, Cherokee, Gregg, Harrison, Marion, Panola and 3 more	58 min
Jan 29, 7:29 PM CST	Severe Thunderstorm Warning	SHV	Bowie, Camp, Cass, Morris, Upshur	61 min
Jan 29, 8:15 PM CST	Severe Thunderstorm Warning	SHV	Harrison, Panola, Shelby	60 min
Jan 29, 8:19 PM CST	Severe Thunderstorm Warning	SHV	Cass	56 min
Jan 29, 9:09 PM CST	Severe Thunderstorm Warning	SHV	Shelby	51 min
Jan 29, 9:21 PM CST	Severe Thunderstorm Warning	SHV	Angelina, Nacogdoches, San Augustine	54 min
Jan 29, 9:52 PM CST	Severe Thunderstorm Warning	SHV	Angelina, Sabine, San Augustine, Shelby	53 min
Jan 29, 11:21 PM CST	Severe Thunderstorm Warning	SHV	Angelina, Cherokee, Nacogdoches, Panola, Rusk, San Augustine and 1 more	39 min
Jan 30, 1:28 AM CST	Lake Wind Advisory	SHV	Angelina, Bowie, Camp, Cass, Cherokee, Franklin and 15 more	17 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2013 Every severe thunderstorm warning 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.