Alert archive / Louisiana / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 140, NWS Lake Charles, LA

July 23, 2000Cameron Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jul 23, 2000, 3:13 PM CDT for Cameron Parish, Louisiana. It was in force for 32 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: Jul 23, 2000, 3:13 PM CDT (20:13 UTC)
Expired: Jul 23, 2000, 3:45 PM CDT
In force: 32 min
Issued by: NWS Lake Charles, LA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Cameron Parish, LA

The radar

The Lake Charles radar (KLCH), 52 km from the middle of the area, began a volume at 20:14 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 nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.2 hours before the alert went out and 51 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: 2253 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 813 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 38 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 232013
SVRLCH
LAC023-232045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
313 PM CDT SUN JUL 23 2000

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

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

* UNTIL 345 PM CDT

* AT 310 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM JUST SOUTH OF HACKBERRY...MOVING SOUTH AT 25
  MPH.

* THIS STORM WILL BE NEAR...
  HOLLY BEACH...CAMERON BY 325 PM

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 2999 9332 2993 9351 2916 9325 2925 9296

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 23, 1:04 PM CDT, 2 hours 9 minutes earlier.

Area forecast discussion, Jul 23, 1:04 PM CDT, 2 hours 9 minutes before

SOUTHEAST TEXAS AND SOUTHWEST LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
104 PM CDT SUN JUL 23 2000

CONVECTION CONTINUES TO FIRE SOUTH OF BOUNDARY WHICH REMAINS JUST
NORTH OF CWA EXTENDING ACROSS CENTRAL LOUISIANA INTO EAST TEXAS.
GOOD DEW POINT DISCONTINUITY WITH MID 60S JUST NORTH OF FRONT...
LOW 70S SOUTH.

ETA DROPS FRONT TO COAST AROUND MIDNIGHT AS VORT MAX DIGS SE INTO
SOUTHWEST MISSISSIPPI. THIS FEATURE CONTINUES TO MOVE SOUTHEAST WITH
SURFACE FRONT MOVING INTO GULF AND DISSIPATING. WILL USE FRONTAL
PASSAGE AS TIMING FOR ENDING OF PRECIPITATION AS MUCH DRIER AIR AT
THE SURFACE AND ALOFT BUILDS INTO THE REGION. LONG WAVE TROF AXIS
SHIFTS JUST EAST OF THE CWA AND BECOMES QUASI STATIONARY. THIS WILL
PROVIDE A DRY NORTHERLY FLOW AND A RAIN-FREE FORECAST THROUGH TUESDAY
DESPITE ANOTHER SHORTWAVE DROPPING SOUTHEAST THROUGH BACK SIDE OF
TROF.

WILL REINTRODUCE CHANCE OF SHOWERS AND THUNDERSTORMS WED AS MRF
RETROGRADES LONGWAVE TROF AND DEVELOPS 5H LOW OVER NORTH-CENTRAL
GULF.

23...MARCOTTE

.LCH...
LA...NONE.
TX...NONE.

.PRELIM NUMBERS...
BPT 72/92/70/91 4000
LCH 72/92/70/91 5000
LFT 70/91/68/89 6000
AEX 65/87/63/87 3000

In the hours before

Local storm report, Jul 23, 9:44 AM CDT, 5 hours 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
944 AM CDT SUN JUL 23 2000

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

0230 AM    PALMETTO                  LA   WIND DAMAGE
07/23/00   ST. LANDRY                     TREES BLOWN DOWN...RPT BY
                                          RADIO STATION IN OPELOUSAS

R. ERICKSON

Local storm report, Jul 23, 1:30 PM CDT, 1 hour 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
130 PM CDT SUN JUL 23 2000

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

0125 PM    LONGVILLE                 LA   0.75 INCH HAIL
07/23/00   BEAUREGARD                     RPT BY SHERIFF DEPT

R. ERICKSON

Local storm report, Jul 23, 2:30 PM CDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
230 PM CDT SUN JUL 23 2000

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

0145 PM    DE QUINCY                 LA   0.75 INCH HAIL
07/23/00   CALCASIEU                      RPT BY POLICE DEPT

R. ERICKSON

Local storm report, Jul 23, 2:35 PM CDT, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
235 PM CDT SUN JUL 23 2000

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

0230 PM    MAURICEVILLE              LA   WIND DAMAGE
07/23/00   ORANGE                         MANY TREES DOWNED...RPT
                                          BY SHERIFF DEPT

R. ERICKSON

Local storm report, Jul 23, 2:58 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
258 PM CDT SUN JUL 23 2000

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

0255 PM    AVERY ISLAND              LA   WIND DAMAGE
07/23/00   IBERIA                         MANY TREES DOWNED...
                                          RPT BY SHERIFF DEPT

R. ERICKSON

Local storm report, Jul 23, 3:08 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
308 PM CDT SUN JUL 23 2000

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

0305 PM    BEVIL OAKS                TX   WIND DAMAGE
07/23/00   JEFFERSON                      MANY TREES DOWNED...
                                          RPT BY SHERIFF DEPT

R. ERICKSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 2:25 AM CDT	Severe Thunderstorm Warning	LCH	Saint Landry	65 min
Jul 23, 4:58 AM CDT	Severe Thunderstorm Warning	LCH	Avoyelles	62 min
Jul 23, 1:17 PM CDT	Severe Thunderstorm Warning	LCH	Beauregard	58 min
Jul 23, 1:22 PM CDT	Severe Thunderstorm Warning	LCH	Calcasieu	53 min
Jul 23, 1:57 PM CDT	Severe Thunderstorm Warning	LCH	Cameron	63 min
Jul 23, 2:14 PM CDT	Severe Thunderstorm Warning	LCH	Calcasieu	31 min
Jul 23, 2:47 PM CDT	Severe Thunderstorm Warning	LCH	Iberia, St. Mary	58 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2000 Every severe thunderstorm warning in 2000

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.