Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 99, NWS Lake Charles, LA

December 25, 2012Hardin County, Tyler County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Dec 25, 2012, 10:57 AM CST for Hardin County, Tyler County, Texas. It was in force for 33 min. 5 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, 10:57 AM CST (16:57 UTC)
Expired: Dec 25, 2012, 11:30 AM CST
In force: 33 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon

Counties Hardin County, TX, Tyler County, TX

The radar

The Lake Charles radar (KLCH), 132 km from the middle of the area, began a volume at 16:58 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, 11:00 AM CST	HAIL 0.5	2 S Woodville, TX	TYLER COUNTY SHERIFF REPORTS MARBLE SIZE HAIL 2 MILES SOUTH OF WOODVILLE.
Dec 25, 11:20 AM CST	HAIL 0.25	N Woodville, TX	TYLER COUNTY SHERIFF REPORTS DIME SIZE HAIL IN WOODVILLE AND 2 TREES DOWN.
Dec 25, 11:20 AM CST	HAIL 0.5	5 S Woodville, TX	TYLER COUNTY SHERIFF REPORTS NICKEL SIZE HAIL 5 MILES SOUTH OF WOODVILLE IN ADDITION TO 4 TREES DOWN.
Dec 25, 11:35 AM CST	TSTM WND GST 51	2 Se Woodville, TX	RAWS SITE 2 MILES SOUTHEAST OF WOODVILLE REPORTED A WIND GUST OF 51 MPH.
Dec 25, 11:35 AM CST	HAIL 0.5	Kountze, TX	HARDIN COUNTY SHERIFF REPORTS NICKEL SIZE HAIL AT THE SHERIFFS OFFICE.

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, 5.0 hours before the alert went out and 133 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.

174 
WUUS54 KLCH 251657
SVRLCH
TXC199-457-251730-
/O.NEW.KLCH.SV.W.0099.121225T1657Z-121225T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1057 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...WILDWOOD...THICKET...SARATOGA...KOUNTZE...
  SOUTHERN TYLER COUNTY IN SOUTHEAST TEXAS...
  THIS INCLUDES...WOODVILLE...WARREN...

* UNTIL 1130 AM CST

* AT 1057 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH...FROM 5 MILES
  NORTHEAST OF WOODVILLE TO 17 MILES SOUTHWEST OF THICKET...MOVING
  NORTHEAST AT 70 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  THICKET AND BATSON BY 1105 AM CST...
  WARREN AND SARATOGA BY 1110 AM CST...
  WILDWOOD AND HONEY ISLAND BY 1115 AM CST...
  VILLAGE MILLS AND KOUNTZE BY 1120 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 3050 9455 3080 9462 3081 9461 3088 9420
      3084 9419 3023 9427 3019 9463 3049 9473
TIME...MOT...LOC 1657Z 242DEG 62KT 3086 9432 3028 9482

$$

1 follow-up statement

384 
WWUS54 KLCH 251707
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1107 AM CST TUE DEC 25 2012

TXC199-457-251730-
/O.CON.KLCH.SV.W.0099.000000T0000Z-121225T1730Z/
HARDIN TX-TYLER TX-
1107 AM CST TUE DEC 25 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM CST
FOR SOUTHERN TYLER AND HARDIN COUNTIES...

AT 1106 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 17 MILES NORTHEAST OF
WOODVILLE TO 6 MILES SOUTHWEST OF THICKET..MOVING NORTHEAST AT 70
MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  WILDWOOD BY 1115 AM CST...
  VILLAGE MILLS AND HONEY ISLAND BY 1120 AM CST...
  KOUNTZE BY 1125 AM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3049 9473 3050 9455 3081 9459 3088 9420
      3084 9419 3023 9427 3019 9463
TIME...MOT...LOC 1707Z 243DEG 59KT 3091 9417 3034 9467

$$

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, 11:00 AM CST	Severe Thunderstorm Warning	LCH	Jasper	30 min
Dec 25, 11:23 AM CST	Severe Thunderstorm Warning	LCH	Hardin, Jasper, Jefferson, Newton, Orange, Tyler	67 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.