Alert archive / Texas / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 21, NWS Lake Charles, LA

April 29, 2006Hardin County, Tyler County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 29, 2006, 7:33 AM CDT for Hardin County, Tyler County, Texas. It was in force for 57 min. 2 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 29, 2006, 7:33 AM CDT (12:33 UTC)
Expired: Apr 29, 2006, 8:30 AM CDT
In force: 57 min
Issued by: NWS Lake Charles, LA
Area: Counties, with a storm outline in the text

Counties Hardin County, TX, Tyler County, TX

The radar

The Lake Charles radar (KLCH), 126 km from the middle of the area, began a volume at 12:36 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 29, 7:38 AM CDT	HAIL 0.75	5 Nw Thicket, TX	HARDIN COUNTY SHERIFF OFFICE REPORTED PENNY SIZE HAIL IN THE EXTREME NORTHWEST CORNER OF THE COUNTY.
Apr 29, 8:14 AM CDT	TSTM WND DMG	Woodville, TX	HARDIN COUNTY SHERIFF OFFICE REPORTED TREE DOWN IN WOODVILLE.

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 29, 6:04 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 0.6 hours before the alert went out and 127 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: 726 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 547 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 308 m²/s²
0-3 km storm-relative helicity: 470 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 8.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KLCH 291234
SVRLCH
TXC199-457-291330-
/O.NEW.KLCH.SV.W.0021.060429T1233Z-060429T1330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
733 AM CDT SAT APR 29 2006

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TYLER COUNTY IN SOUTHEAST TEXAS
  HARDIN COUNTY IN SOUTHEAST TEXAS

* UNTIL 830 AM CDT

* AT 730 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 8 MILES NORTHWEST OF WOODVILLE
  TO 10 MILES NORTH OF THICKET TO 15 MILES SOUTHWEST OF THICKET...AND
  MOVING NORTHEAST AT 30 MPH.

* SEVERE THUNDERSTORMS EXPECTED TO BE NEAR...
   COLMESNEIL BY 745 AM CDT
   WOODVILLE...THICKET AND IVANHOE BY 755 AM CDT
   HILLISTER BY 805 AM CDT
   WARREN AND HONEY ISLAND BY 815 AM CDT
   WILDWOOD AND KOUNTZE BY 820 AM CDT
   VILLAGE MILLS BY 825 AM CDT

SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MPH...DESTRUCTIVE
HAIL...DEADLY LIGHTNING AND TORRENTIAL RAIN.

A TORNADO WATCH IS ALSO IN EFFECT. TORNADOES CAN DEVELOP SUDDENLY
FROM SEVERE THUNDERSTORMS.

CALL 337-477-5285 TO REPORT SEVERE WEATHER TO THE WEATHER SERVICE.

LAT...LON 3089 9463 3048 9453 3048 9472 3029 9466
      3032 9410 3042 9413 3056 9410 3082 9421
      3099 9427

$$

K. KUYPER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 5:29 AM CDT	Lake Wind Advisory	LCH	Hardin, Tyler	14 hr
Apr 29, 7:41 AM CDT	Tornado Warning	LCH	Tyler	49 min
Apr 29, 8:57 AM CDT	Severe Thunderstorm Warning	LCH	Jasper, Newton	63 min
Apr 29, 10:36 AM CDT	Tornado Warning	LCH	Hardin	39 min
Apr 29, 11:15 AM CDT	Tornado Warning	LCH	Hardin, Jasper	30 min
Apr 29, 1:36 PM CDT	Severe Thunderstorm Warning	LCH	Orange	24 min

Nearby

Severe Thunderstorm Warnings in Texas, 2006 Every severe thunderstorm warning in 2006

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.