Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 94, NWS Lake Charles, LA

June 29, 2001Calcasieu Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jun 29, 2001, 5:34 PM CDT for Calcasieu Parish, Louisiana. It was in force for 41 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
Jun 29, 2001, 5:34 PM CDT (22:34 UTC)
Expired
Jun 29, 2001, 6:15 PM CDT
In force
41 min
Issued by
NWS Lake Charles, LA
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Calcasieu Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 10.6 hours before the alert went out and 19 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 12:00Z on 2001-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1679 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 12:00Z on 2001-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
1679 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
967 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KLCH 292234
SVRLCH
LAC019-292315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
534 PM CDT FRI JUN 29 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CALCASIEU PARISH IN SOUTHWEST LOUISIANA

* UNTIL 615 PM CDT

* AT 532 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER WESTLAKE...MOVING NORTHEAST AT 20 MPH.

* THIS STORM WILL BE NEAR...
  MOSS BLUFF BY 545 PM CDT
  WESTLAKE BY 538 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 WHEATHER TO THE WEATHER SERVICE.

LAT...LON 3026 9343 3013 9328 3024 9314 3039 9328

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 Jun 29, 3:00 PM CDT, 2 hours 34 minutes earlier.

Area forecast discussion, Jun 29, 3:00 PM CDT, 2 hours 34 minutes before
SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
300 PM CDT FRI JUN 29 2001

CURRENTLY...STRONGEST SHOWER AND THUNDERSTORM ACTIVITY LOCATED
OVER THE LAKES AREA OF SOUTHEAST TEXAS AND CENTRAL LOUISIANA
ALONG AN OLD OUTFLOW BOUNDARY SAGGING SOUTH INTO THE NORTHERN
PORTIONS OF THE FORECAST AREA.

SHOWERS AND THUNDERSTORMS LOOK LIKELY THIS WEEKEND. MOIST TROPICAL
AIRMASS WILL CONTINUE TO BE IN PLACE WITH PRECIPITABLE WATER VALUES
IN THE 1.5 TO 2 INCH RANGE. MEANWHILE...MID LEVEL LOW PRESSURE SYSTEM
WILL DRIFT TO THE SOUTHWEST FROM THE MID MISSISSIPPI VALLEY TO EAST
TEXAS.

WITH AFTERNOON CAPE VALUES RUNNING OVER 3500 J/KG EACH DAY AND MID
LEVEL COOLING AS LOW DRIFTS INTO THE FORECAST AREA...THE POSSIBILITY
FOR PULSE SEVERE STORMS WILL CONTINUE. ALSO...WITH THE HIGH PWAT
VALUES...THE POSSIBILITY FOR HEAVY RAINFALL WILL EXIST.

EXTENDED...
WET TROPICAL PATTERN CONTI,NUES INTO EARLY PART OF NEXT WEEK.

.LCH...NONE.

.PRELIM NUMBERS...
BPT 72/87/72/87/73 26362
LCH 71/87/71/87/73 26362
LFT 71/87/71/87/73 26362
AEX 69/87/70/86/71 36462

7-RUA

In the hours before

Local storm report, Jun 29, 1:03 PM CDT, 4 hours 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
103 PM CDT FRI JUN 29 2001

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

1130 AM    HACKBERRY              LA      WIND DAMAGE
06/29/01   CAMERON                        PUBLIC RPT LIGHT POLE
                                          BLOWN DOWN AT PARK
Local storm report, Jun 29, 2:33 PM CDT, 3 hours 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
233 PM CDT FRI JUN 29 2001

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

150 PM     2 S WOODVILLE          TX      WIND DAMAGE
06/29/01   TYLER                          TREES DOWNED ON POWER LINES

215 PM     MAURICEVILLE           TX      WIND DAMAGE
06/29/01   ORANGE                         SMALL TREES BLOWN DOWN

R. ERICKSON
Local storm report, Jun 29, 4:56 PM CDT, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
456 PM CDT FRI JUN 29 2001

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

0420 PM    LEONVILLE                 LA   WIND DAMAGE
06/29/01   ST LANDRY                      CAR/TRAILER BLEW OFF
                                          ROAD...TREES DOWN...DIME
                                          SIZE HAIL

FN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 3:02 PM CDTSevere Thunderstorm WarningLCHRapides58 min
Jun 29, 4:15 PM CDTSevere Thunderstorm WarningLCHSaint Landry60 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2001Every severe thunderstorm warning 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.