Alert archive / Louisiana / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 56, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 2, 2000, 3:49 PM CDT for Beauregard Parish, Louisiana. It was in force for 56 min. 1 report came from 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, with what was reported inside it.
The facts
- Issued
- Apr 2, 2000, 3:49 PM CDT (20:49 UTC)
- Expired
- Apr 2, 2000, 4:45 PM CDT
- In force
- 56 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Beauregard Parish, LA
The radar
The Lake Charles radar (KLCH), 59 km from the middle of the area, began a volume at 20:50 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 2, 4:38 PM CDT | Hail 1.5 | Singer, LA |
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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 2, 12:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.8 hours before the alert went out and 61 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.
- Mixed-layer CAPE
- 984 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 512 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KLCH 022052 SVRLCH LAC011-022145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 349 PM CDT SUN APR 2 2000 THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BEAUREGARD PARISH IN SOUTHWEST LOUISIANA * UNTIL 445 PM CDT * AT 349 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 30 MILES SOUTHWEST OF DE RIDDER IN SOUTHWEST BEAUREGARD PARISH...MOVING NORTHEAST AT 30 MPH. * THIS STORM WILL BE NEAR... FIELDS BY 355 PM CDT ORETTA BY 410 PM CDT SINGER BY 430 PM CDT LONGVILLE BY 445 PM CDT SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND TORRENTIAL RAIN. A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT SUNDAY EVENING FOR SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS. CALL 337-477-5285 TO REPORT SEVERE WEATHER TO THE WEATHER SERVICE. LAT...LON 3052 9374 3039 9359 3061 9320 3085 9344
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 2, 1:43 PM CDT, 2 hours 6 minutes earlier.
Area forecast discussion, Apr 2, 1:43 PM CDT, 2 hours 6 minutes before
SOUTHEAST TEXAS AND SOUTHWEST LOUISIANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 143 PM CDT SUN APR 2 2000 ...A TORNADO WATCH IS IN EFFECT UNTIL 6 PM CDT... ...POSSIBLE FLOODING PROBLEM TONIGHT... .FIRST PERIOD... AT THE TOP OF THE FRICTION LAYER (NEAR 925 MB)...THE LLJ (LOW-LEVEL JET) AND ATTENDANT THETA-E (EQUIVALENT POTENTIAL TEMPERATURE) RIDGE EXTENDS FROM ALABAMA THROUGH THE MOUTH OF THE MISSISSIPPI RIVER. THIS MESO-SCALE CONFIGURATION HAS SET-UP A FRONTAL INTERFACE...SITUATED ACROSS SOUTH CENTRAL LOUISIANA. EXPECT CONVECTIVE RAINS ORGANIZING INTO LINES WITHIN THE LAFAYETTE/NEW IBERIA NEIGHBORHOOD. OTHERWISE ...CONTINUOUS STABLE RAINS ARE EXPECTED ACROSS THE REMAINDER OF THE FORECAST AREA...THE GENTLE RAINFALL RATES WILL BRING THE GROUND TO FIELD CAPACITY. LOCALIZED FLOODING MAY BE A PROBLEM...UNDULATIONS IN THE SOUTHWESTERLY CURRENT ALOFT MAY TRIGGER A FEW EMBEDDED TSTMS. FINALLY...LOW CEILINGS AND PATCHY FOG ARE LIKELY IN THE RAIN AREAS. .SECOND PERIOD... THE SYNOPTIC CONFIGURATION BECOMES COMPLICATED. THE ETA GUIDANCE DEPICTS THE 925 MB FRONTAL INTERFACE SKEDADDLING ACROSS THE FORECAST AREA...SHOVING THE CONVECTIVE RAINS TO THE EAST OF THE LAFAYETTE/NEW IBERIA NEIGHBORHOOD. SIGNIFICANT QUASI-GEOSTROPHIC LIFT (500 MB PVA) BECOMES ESTABLISHED ACROSS THE WESTERN HALF OF THE FORECAST AREA... BUT FORTUNATELY IN THE WAKE OF THE 925 MB FRONTAL INTERFACE. THE STRONG DESCENT IN THE WAKE WILL EXTINGUISH THE RAINS...BEGINNING FROM THE WEST (EARLY AFTERNOON) AND ENDING TO THE EAST (EARLY EVENING). FINALLY...THE PRIMARY SOUTHERN PLAINS COLD FRONT WILL BULLDOSE INTO UPPER SOUTHEAST TEXAS DURING THE EARLY EVENING. .THIRD PERIOD... EXPECT A RAPID COOL-DOWN AS THE SOUTHERN PLAINS COLD FRONT SPILLS INTO THE NORTHWEST GULF OF MEXICO. BRISK NORTHERS WILL BRING ABOUT CLEAR SKIES AND COLD WIND CHILLS. GUSTY WINDS MAY BE A PROBLEM... COLD AIR ADVECTION WITHIN THE FRICTION LAYER WILL PRODUCE A SUPER- ADIABATIC LAPSE RATE...WHICH ENCOURAGES DOWNWARD MOMENTUM TRANSFER. WIND GUSTS TO 30 KT ARE POSSIBLE. .FOURTH PERIOD... BRISK WINDS WILL SLOWLY RELAX BY THE AFTERNOON. AFTERNOON HIGHS WILL BE RUNNING ABOUT 10 DEG F BELOW NORMAL. 21 .LCH...TORNADO WATCH IS IN EFFECT TX...TX180>182-210-215>216 LA...LA027>029-030>033-041>043-051 PRELIMINARY NUMBERS... LCH 67/72/49/65 8820 BPT 68/74/47/65 7710 LFT 68/74/52/60 8840 AEX 65/68/47/58 7720
In the hours before
Local storm report, Apr 2, 2:43 PM CDT, 1 hour 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
243 PM CDT SUN APR 2 2000
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....r
0241 PM HAMSHIRE TX 1.75 INCH HAIL
04/2/00 JEFFERSON REPORTED BY JEFFERSON
COUNTY SHERIFFS DEPT.
FNLocal storm report, Apr 2, 3:23 PM CDT, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
323 PM CDT SUN APR 2 2000
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0324 PM MAURICEVILLE TX 1.75 INCH HAIL
04/2/00 ORANGE REPORTED BY SHERIFFS DEPT.
FNThe office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 6:10 AM CDT | Severe Thunderstorm Warning | LCH | Vernon | 65 min |
| Apr 2, 3:14 PM CDT | Tornado Warning | LCH | Calcasieu | 61 min |
| Apr 2, 4:25 PM CDT | Severe Thunderstorm Warning | LCH | Calcasieu, Cameron | 65 min |
| Apr 2, 5:24 PM CDT | Severe Thunderstorm Warning | LCH | Calcasieu | 66 min |
| Apr 2, 5:40 PM CDT | Severe Thunderstorm Warning | LCH | Jefferson Davis | 65 min |
| Apr 2, 6:07 PM CDT | Tornado Warning | LCH | Cameron | 68 min |
| Apr 2, 6:12 PM CDT | Severe Thunderstorm Warning | LCH | Allen | 48 min |
| Apr 2, 6:21 PM CDT | Severe Thunderstorm Warning | LCH | Evangeline, Saint Landry | 54 min |
| Apr 2, 6:46 PM CDT | Severe Thunderstorm Warning | LCH | Calcasieu | 59 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2000Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.