Alert archive / Texas / Tornado Warnings in 2001

Tornado Warning 12, NWS Lake Charles, LA

October 13, 2001Tyler County, Texas

NWS Lake Charles, LA issued this tornado warning at Oct 13, 2001, 3:23 AM CDT for Tyler County, Texas. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Oct 13, 2001, 3:23 AM CDT (08:23 UTC)
Expired: Oct 13, 2001, 3:45 AM CDT
In force: 22 min
Issued by: NWS Lake Charles, LA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Tyler County, TX

The radar

The Ft Polk radar (KPOE), 155 km from the middle of the area, began a volume at 08:26 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 13, 12:30 AM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 8.4 hours before the alert went out and 168 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: 2537 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 640 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 6.4

Open this sounding in Storm Lab

The text

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

501 
WFUS54 KLCH 130824
TORLCH
TXC457-130845-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
323 AM CDT SAT OCT 13 2001

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN TYLER COUNTY IN SOUTHEAST TEXAS

* UNTIL 345 AM CDT

* AT 317 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  A DEVELOPING TORNADO 3 MILES NORTHWEST OF CHESTER...MOVING
  NORTHEAST AT 20 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
RURAL NORTHWESTERN TYLER COUNTY

A TORNADO MAY FORM AT ANY TIME - TAKE COVER NOW. ABANDON MOBILE HOMES
AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS.

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT SATURDAY MORNING
FOR WEST CENTRAL LOUISIANA AND SOUTHEAST TEXAS.

LAT...LON 3097 9477 3084 9462 3112 9436 3124 9448

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 12, 7:38 PM CDT	Severe Thunderstorm Warning	LCH	Jasper	52 min
Oct 13, 4:37 AM CDT	Severe Thunderstorm Warning	LCH	Hardin, Jasper, Newton	53 min
Oct 13, 4:50 AM CDT	Severe Thunderstorm Warning	LCH	Jefferson, Orange	55 min
Oct 13, 4:55 AM CDT	Tornado Warning	LCH	Jasper	35 min

Nearby

Tornado Warnings in Texas, 2001 Every tornado warning in 2001 Tornadoes in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.