Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 37, NWS Lake Charles, LA

March 24, 2001Saint Martin Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 24, 2001, 10:38 PM CST for Saint Martin Parish, Louisiana. It was in force for 37 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 24, 2001, 10:38 PM CST (04:38 UTC)
Expired
Mar 24, 2001, 11:15 PM CST
In force
37 min
Issued by
NWS Lake Charles, LA
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Saint Martin Parish, LA

What was reported inside it

TimeReportWhereRemark
Mar 24, 11:05 PM CSTHail 0.75Catahoula, 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 00:00Z, 4.6 hours before the alert went out and 137 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 2001-03-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 310 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 00:00Z on 2001-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 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
310 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
1119 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

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

406 
WUUS54 KLCH 250439
SVRLCH
LAC099-250515-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1038 PM CST SAT MAR 24 2001

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ST. MARTIN PARISH IN SOUTH CENTRAL LOUISIANA

* UNTIL 1115 PM CST

* AT 1037 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES NORTHWEST OF BREAUX BRIDGE...MOVING
  EAST AT 30 MPH.

* THIS STORM WILL BE NEAR...
  CECILIA BY 1045 PM CST
  HENDERSON BY 1050 PM CST

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 3041 9197 3026 9195 3012 9156 3034 9149

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 Mar 24, 8:30 PM CST, 2 hours 8 minutes earlier.

Area forecast discussion, Mar 24, 8:30 PM CST, 2 hours 8 minutes before
SOUTHEAST TEXAS AND SOUTHWEST LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
830 PM CST SAT MAR 24 2001

STORMS MOVG ACRS THE AREA TOWARDS THE EAST WHILE A FEW ISOLATED
CELLS ARE MOVG MORE SE...WILL CONT TO MONITOR. ATT DO NOT SEE ANY
WIDESPREAD SVR STORMS DVLPG...ALTHOUGH IT MAYBE PSBLY TO SEE ONE OR
TWO REACH SVR LIMITS.

COLD FRNT THRU POE AND AEX AND IS EXPECTED TO TRUCK THRU LCH/BPT
BEFORE 06Z. THIS WILL EFFECTIVELY CUT OUT LOW LVL INSTABILITY.
SUNNY SKIES AND COOLER TEMPS ON TAP FOR TMRW AFTN.

WILL MAKE SOME AMD TO ZONES.

.PRELIM NUMBERS...
AEX 47/61/36/62/40 50002
BPT 50/63/42/65/45 40001
LCH 51/63/40/65/42 50001
LFT 52/63/40/6@5/42 50001

K. KUYPER

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 24, 9:38 PM CSTSevere Thunderstorm WarningLCHEvangeline, Saint Landry52 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.