Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 11, NWS Lake Charles, LA

April 8, 2002Hardin County, Jasper County, Tyler County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 8, 2002, 1:47 AM CDT for Hardin County, Jasper County, Tyler County, Texas. It was in force for 58 min. 3 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 8, 2002, 1:47 AM CDT (06:47 UTC)
Expired
Apr 8, 2002, 2:45 AM CDT
In force
58 min
Issued by
NWS Lake Charles, LA
Area
Counties, with a storm outline in the text

Counties Hardin County, TX, Jasper County, TX, Tyler County, TX

What was reported inside it

TimeReportWhereRemark
Apr 8, 2:03 AM CDTThunderstorm WindCountywide, TX
Apr 8, 2:15 AM CDTHail 0.75Evadale, TX
Apr 8, 2:17 AM CDTThunderstorm WindBuna, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 8, 1:15 AM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 6.8 hours before the alert went out and 123 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-pSkew-T log-p diagram, Lake Charles Mun, LA at 00:00Z on 2002-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 645 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 00:00Z on 2002-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
645 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
735 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KLCH 080647
SVRLCH
TXC199-241-457-080745-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
147 AM CDT MON APR 8 2002

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

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

* UNTIL 245 AM CDT

* AT 147 AM CDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS 18
  MILES SOUTHWEST OF JASPER...MOVING NORTHEAST AT 20 MPH.

* THIS STORM WILL BE NEAR...
  JASPER BY 225 AM CDT
  KOUNTZE BY 240 AM CDT 

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

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

LAT...LON 3093 9451 3016 9460 3034 9392 3113 9394

K. KUYPER

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lake Charles, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 7, 8:54 PM CDT, 4 hours 53 minutes earlier.

Area forecast discussion, Apr 7, 8:54 PM CDT, 4 hours 53 minutes before
SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
854 PM CDT SUN APR 7 2002

IR SAT PIX SHOWS LARGE MCS OVER CEN TX...MOVING EAST. RADARS INDICATE
A LINE OF STRONG TO SEVERE STORMS FROM DALLAS TO SAN ANTONIO....WITH
A NEW MCC AND LINE OF STORMS DEVELOPING ACROSS NORTHEAST TEXAS FROM
PALESTINE TO TEXARKANA.

TEMPS STILL RUNNING IN LOWER 70S AREAWIDE...WITH STRONG SOUTHEAST
WINDS IN THE 15 TO 20 KT RANGE STILL. WILL BE TWEAKING THE ZONES
WITH WORDING...TO MENTION PRECIP CHANCES INCREASING TOWARDS
MORNING...AND POSSIBILITY OF SEVERE STORMS.  15

.PRELIMINARY NUMBERS...
       MO    TU    WE  M T W
AEX 67/73 62/79 58/79 59431-
BPT 70/76 64/81 60/81 682---
LCH 69/75 64/81 60/81 5821--
LFT 68/74 64/81 63/81 38531-

.LCH...SMALL CRAFT ADVISORY...GMZ450 455 470 475...ATCHAFALAYA RIVER
LOUISIANA TO HIGH ISLAND TEXAS.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 2:47 AM CDTSevere Thunderstorm WarningLCHJasper, Jefferson, Orange58 min
Apr 8, 2:49 AM CDTSevere Thunderstorm WarningLCHNewton56 min
Apr 8, 2:50 AM CDTSevere Thunderstorm WarningLCHJasper, Jefferson, Orange55 min

Nearby

Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.