Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 101, NWS Lake Charles, LA

December 25, 20126 counties in Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Dec 25, 2012, 11:23 AM CST for 6 counties in Texas. It was in force for 67 min. 6 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: Dec 25, 2012, 11:23 AM CST (17:23 UTC)
Expired: Dec 25, 2012, 12:30 PM CST
In force: 67 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon

Counties Hardin County, TX, Jasper County, TX, Jefferson County, TX, Newton County, TX, Orange County, TX, Tyler County, TX

The radar

The Lake Charles radar (KLCH), 105 km from the middle of the area, began a volume at 17:23 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
Dec 25, 11:35 AM CST	TSTM WND GST 44	Jasper, TX
Dec 25, 11:35 AM CST	HAIL 0.5	Kountze, TX	HARDIN COUNTY SHERIFF REPORTS NICKEL SIZE HAIL AT THE SHERIFFS OFFICE.
Dec 25, 11:38 AM CST	HAIL 0.25	Magnolia Springs, TX	PUBLIC REPORTS VIA FACEBOOK, PEA SIZE HAIL NEAR MAGNOLIA SPRINGS.
Dec 25, 12:05 PM CST	TSTM WND GST 54	2 E Buna, TX	RAWS STATION EAST OF BUNA REPORTS A WIND GUST OF 54 MPH.
Dec 25, 12:05 PM CST	TSTM WND GST 54	Kirbyville, TX	KIRBYVILLE RAWS SITE REPORTS A 20 FOOT WIND GUST OF 54 MPH.
Dec 25, 12:28 PM CST	TSTM WND DMG	Vidor, TX	VIDOR POLICE REPORT AN APARTMENT COMPLEX AT 475 S DENVER HAD ITS ROOF BLOWN OFF AND DEBRIS SCATTERED ON THE ROADWAY.

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
Dec 25, 9:17 AM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 5.4 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: 1505 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 500 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 265 m²/s²
0-3 km storm-relative helicity: 353 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 10.9

Open this sounding in Storm Lab

The text

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

281 
WUUS54 KLCH 251723
SVRLCH
TXC199-241-245-351-361-457-251830-
/O.NEW.KLCH.SV.W.0101.121225T1723Z-121225T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1123 AM CST TUE DEC 25 2012

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HARDIN COUNTY IN SOUTHEAST TEXAS...
  THIS INCLUDES...SOUR LAKE...SILSBEE...SARATOGA...LUMBERTON...
  KOUNTZE...
  JASPER COUNTY IN SOUTHEAST TEXAS...
  THIS INCLUDES...KIRBYVILLE...JASPER...EVADALE...BUNA...
  EXTREME NORTH CENTRAL JEFFERSON COUNTY IN SOUTHEAST TEXAS...
  NORTHWESTERN NEWTON COUNTY IN SOUTHEAST TEXAS...
  THIS INCLUDES...TOLEDO BEND DAM...NEWTON...CALL...BURKEVILLE...
  NORTHWESTERN ORANGE COUNTY IN SOUTHEAST TEXAS...
  THIS INCLUDES VIDOR...
  SOUTHEASTERN TYLER COUNTY IN SOUTHEAST TEXAS...
  THIS INCLUDES...TOWN BLUFF...FRED...

* UNTIL 1230 PM CST

* AT 1123 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH...FROM 15 MILES
  NORTH OF JASPER TO 7 MILES SOUTHWEST OF SARATOGA...MOVING EAST AT
  30 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  JASPER BY 1130 AM CST...
  HARRISBURG...KOUNTZE AND FRED BY 1135 AM CST...
  CANEY HEAD...SOUR LAKE AND MAGNOLIA SPRINGS BY 1140 AM CST...
  MAYFLOWER...MT. UNION AND FARRSVILLE BY 1145 AM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND HEAVY RAIN. STAY INDOORS...
AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CST TUESDAY AFTERNOON
FOR SOUTHWESTERN LOUISIANA AND SOUTHEAST TEXAS.

&&

PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE AT
337-477-5285 EXTENSION 1.

LAT...LON 3115 9399 3118 9354 3012 9395 3012 9460
      3022 9464
TIME...MOT...LOC 1723Z 270DEG 26KT 3112 9390 3020 9454

$$

27

1 follow-up statement

119 
WWUS54 KLCH 251758
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1158 AM CST TUE DEC 25 2012

TXC199-241-245-351-361-457-251830-
/O.CON.KLCH.SV.W.0101.000000T0000Z-121225T1830Z/
HARDIN TX-JASPER TX-NEWTON TX-TYLER TX-JEFFERSON TX-ORANGE TX-
1158 AM CST TUE DEC 25 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CST
FOR NORTHWESTERN ORANGE...EXTREME NORTH CENTRAL JEFFERSON...
SOUTHEASTERN TYLER...NEWTON...SOUTHEASTERN JASPER AND EASTERN HARDIN
COUNTIES...

AT 1155 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SEVERE THUNDERSTORMS ON RADAR CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES SOUTHEAST OF
BURKEVILLE TO LUMBERTON..MOVING EAST AT 45 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  LAKEVIEW...TROUT CREEK AND BUNA BY 1205 PM CST...
  WEISS BLUFF AND EVADALE BY 1210 PM CST...
  VIDOR...PINE FOREST AND WRIGHTS SETTLEMENT BY 1215 PM CST...
  GIST BY 1225 PM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CST TUESDAY AFTERNOON
FOR SOUTHWESTERN LOUISIANA AND SOUTHEAST TEXAS.

&&

LAT...LON 3012 9453 3117 9365 3118 9354 3012 9395
TIME...MOT...LOC 1758Z 270DEG 38KT 3092 9355 3031 9421

$$

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 24, 8:52 PM CST	Dense Fog Advisory	LCH	Hardin, Jasper, Newton	6 hr
Dec 25, 2:31 AM CST	Special Weather Statement	LCH	Jasper, Tyler	59 min
Dec 25, 4:17 AM CST	Wind Advisory	LCH	Hardin, Jasper, Newton, Tyler	26 hr
Dec 25, 10:30 AM CST	Severe Thunderstorm Warning	LCH	Tyler	60 min
Dec 25, 10:57 AM CST	Severe Thunderstorm Warning	LCH	Hardin, Tyler	33 min
Dec 25, 11:00 AM CST	Severe Thunderstorm Warning	LCH	Jasper	30 min
Dec 25, 11:37 AM CST	Severe Thunderstorm Warning	LCH	Newton	68 min
Dec 25, 11:48 AM CST	Severe Thunderstorm Warning	LCH	Jefferson, Orange	42 min
Dec 25, 12:20 PM CST	Severe Thunderstorm Warning	LCH	Newton, Orange	55 min
Dec 25, 12:27 PM CST	Severe Thunderstorm Warning	LCH	Jefferson, Orange	63 min

Nearby

Severe Thunderstorm Warnings in Texas, 2012 Every severe thunderstorm warning in 2012

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.