Alert archive / Louisiana / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 21, NWS Lake Charles, LA

March 18, 2000Acadia Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 18, 2000, 2:33 PM CST for Acadia Parish, Louisiana. It was in force for 42 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
Mar 18, 2000, 2:33 PM CST (20:33 UTC)
Expired
Mar 18, 2000, 3:15 PM CST
In force
42 min
Issued by
NWS Lake Charles, LA
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Acadia Parish, LA

What was reported inside it

TimeReportWhereRemark
Mar 18, 3:00 PM CSTHail 0.75Branch, 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 nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.6 hours before the alert went out and 90 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 2000-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 46 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2000-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 square meters per square second.19395878Sfc1 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
46 J/kg
Mixed-layer CIN
-332 J/kg
Mixed-layer LCL
812 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KLCH 182034
SVRLCH
LAC001-182115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
233 PM CST SAT MAR 18 2000

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

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

* UNTIL 315 PM CST

* AT 227 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 11 MILES SOUTHWEST OF CHURCH POINT...MOVING
  NORTHEAST AT 35 MPH.

* THIS STORM WILL BE NEAR...
  MIRE BY 240 PM CST
  SUNSET BY 255 PM CST

THIS THUNDERSTORM IS CAPABLE OF PRODUCING VERY LARGE HAIL WHICH COULD
CAUSE SIGNIFICANT DAMAGE TO PROPERTY.

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

LAT...LON 3034 9245 3021 9231 3041 9204 3053 9231

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 18, 12:33 PM CSTSevere Thunderstorm WarningLCHVermilion57 min
Mar 18, 1:09 PM CSTSevere Thunderstorm WarningLCHLafayette66 min
Mar 18, 1:25 PM CSTSevere Thunderstorm WarningLCHSaint Martin65 min
Mar 18, 1:46 PM CSTSevere Thunderstorm WarningLCHSaint Landry59 min
Mar 18, 2:50 PM CSTSevere Thunderstorm WarningLCHEvangeline55 min
Mar 18, 3:14 PM CSTSevere Thunderstorm WarningLCHAllen61 min
Mar 18, 3:27 PM CSTSevere Thunderstorm WarningLCHBeauregard33 min
Mar 18, 3:54 PM CSTSevere Thunderstorm WarningLCHBeauregard, Calcasieu66 min
Mar 18, 3:54 PM CSTSevere Thunderstorm WarningLCHAllen66 min
Mar 18, 4:10 PM CSTSevere Thunderstorm WarningLCHVernon65 min
Mar 18, 4:14 PM CSTSevere Thunderstorm WarningLCHRapides61 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.