Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 33, NWS Lake Charles, LA

July 7, 2002Jasper County, Newton County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Jul 7, 2002, 10:37 PM CDT for Jasper County, Newton County, Texas. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 7, 2002, 10:37 PM CDT (03:37 UTC)
Expired
Jul 7, 2002, 11:30 PM CDT
In force
53 min
Issued by
NWS Lake Charles, LA
Area
Counties, with a storm outline in the text

Counties Jasper County, TX, Newton County, TX

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 nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 3.6 hours before the alert went out and 70 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 2002-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3420 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2002-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.1939Sfc1 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
3420 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1263 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.3

Open this sounding in Storm Lab

The text

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

953 
WUUS54 KLCH 080337
SVRLCH
TXC241-351-080430-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1037 PM CDT SUN JUL 7 2002

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NEWTON COUNTY IN SOUTHEAST TEXAS
  JASPER COUNTY IN SOUTHEAST TEXAS

* UNTIL 1130 PM CDT

* AT 1032 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES NORTH OF DEWEYVILLE...MOVING WEST AT 25
  MPH.

* THIS STORM WILL BE NEAR...
  BUNA BY 1100 PM 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 3028 9374 3049 9375 3051 9405 3029 9406

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 Jul 7, 1:13 PM CDT, 9 hours 24 minutes earlier.

Area forecast discussion, Jul 7, 1:13 PM CDT, 9 hours 24 minutes before
SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL
WEATHER SERVICE LAKE CHARLES LA...UPDATE
113 PM CDT SUN JUL 7 2002

UPDATED ZONES AGAIN...EXTENDED HEAT ADVISORY INTO SOUTHERN ZONES AS
DEWPOINTS HOLD IN THE UPPER 70S WITH TEMPS INTO THE MID 90S.

...1245 PM DISC...

UNFORTUNATELY THE TEMPERATURES IN THE NORTHERN HALF OF THE AREA
HAVING CONTINUED TO SOAR UNDER A LIGHT EAST TO NORTHEAST WIND.
DEWPOINTS IN THE UPPER 70S TO NEAR 80 GIVE HEAT INDICES NEAR 115
DEGREES. ISSUED A HEAT ADVISORY FOR THE NORTHERN ZONES AS CONDITIONS
WILL NOT ABATE UNTIL EARLY THIS EVENING.

WILL UPDATE FORECAST FOR UPPER 90S IN THE NORTHERN ZONES.

.LCH...NONE.

.UPDATED NUMBERS...
AEX 97/73/94/73/94/74 213141
BPT 94/75/92/74/93/76 214141
LCH 94/75/93/75/93/76 214141
LFT 94/74/93/75/92/75 214141

06

PREVIOUS DISCUSSION AT 930 AM:
SEE NO SUPRISES THIS AFTERNOON. AREA UNDER NEGATIVE VORTICITY
ADVECTION AND CONVECTIVE TEMPERATURE ON LCH SOUNDING UP TO 90. K-
INDEX OF 24 WOULD ONLY SUPPORT ISOLATED THUNDERSTORM ACTIVITY.
ANOTHER HOT DAY IS ON TAP FOR THE CWA. CURRENT FORECAST PACKAGE LOOKS
GOOD. WILL NOT MAKE ANY CHANGES. STORM PREDICTION CENTER HAS
INDICATED THAT ANY STORMS THAT DO DEVELOP HAVE THE POTENTIAL TO
PRODUCE STRONG GUSTY WINDS. THIS IS IN THE FORECAST.

.LCH...NONE.

.PRELIMINARY NUMBERS...
AEX 96/73/94/73/94/74 213141
BPT 94/75/92/74/93/76 214141
LCH 94/75/93/75/93/76 214141
LFT 94/74/93/75/92/75 214141

06

In the hours before

Local storm report, Jul 7, 9:10 PM CDT, 1 hour 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES,LA
910 PM CDT SUN JUL 7 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0725 PM    BREAUX BRIDGE             LA   WIND DAMAGE
07/08/02   UPPER ST MARTIN                NUMEROUS TREES DOWN
                                          THROUGHOUT THE PARISH
                                          REPORTED BY SHERIFF
                                          DEPARTMENT.

0735 PM    ST MARTINVILLE            LA   WIND DAMAGE
07/07/02   UPPER ST MARTIN                TREES DOWN IN THE ST
                                          MARTINVILLE AREA REPORTED
                                          BY LOUISIANA STATE POLICE
                                          TROOP I.

0739 PM    LAYAFETTE                 LA   WIND DAMAGE
07/07/02   LAFAYETTE                      TREE DOWN IN CITY OF
                                          LAFAYETTE. REPORTED BY OFF
                                          DUTY STATE POLICE TROOPER.
Local storm report, Jul 7, 9:10 PM CDT, 1 hour 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES,LA
910 PM CDT SUN JUL 7 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0725 PM    BREAUX BRIDGE             LA   WIND DAMAGE
07/07/02   UPPER ST MARTIN                NUMEROUS TREES DOWN
                                          THROUGHOUT THE PARISH
                                          REPORTED BY SHERIFF
                                          DEPARTMENT.

0735 PM    ST MARTINVILLE            LA   WIND DAMAGE
07/07/02   UPPER ST MARTIN                TREES DOWN IN THE ST
                                          MARTINVILLE AREA REPORTED
                                          BY LOUISIANA STATE POLICE
                                          TROOP I.

0739 PM    LAYAFETTE                 LA   WIND DAMAGE
07/07/02   LAFAYETTE                      TREE DOWN IN CITY OF
                                          LAFAYETTE. REPORTED BY OFF
                                          DUTY STATE POLICE TROOPER.
Local storm report, Jul 7, 10:30 PM CDT, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES,LA
1030 PM CDT SUN JUL 7 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1000 PM    DE RIDDER                 LA   WIND DAMAGE
07/07/02   BEAUREGARD                     NUMEROUS TREES DOWN ALONG
                                          HIGHWAY 394 AND 171 BETWEEN
                                          BUNDICK LAKE AND DE RIDDER.
                                          REPORTED BY BEAUREGARD
                                          SHERIFF DEPARTMENT.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 9:22 PM CDTSevere Thunderstorm WarningLCHTyler53 min
Jul 7, 11:24 PM CDTSevere Thunderstorm WarningLCHTyler36 min
Jul 7, 11:42 PM CDTSevere Thunderstorm WarningLCHHardin33 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; the sounding from the Mesonet's radiosonde archive.