Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 130, NWS Lake Charles, LA

October 12, 2001Avoyelles Parish, Rapides Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Oct 12, 2001, 10:47 PM CDT for Avoyelles Parish, Rapides Parish, Louisiana. It was in force for 43 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
Oct 12, 2001, 10:47 PM CDT (03:47 UTC)
Expired
Oct 12, 2001, 11:30 PM CDT
In force
43 min
Issued by
NWS Lake Charles, LA
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Avoyelles Parish, LA, Rapides Parish, LA

The radar

The Ft Polk radar (KPOE), 56 km from the middle of the area, began a volume at 03:48 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 00:00Z, 3.8 hours before the alert went out and 140 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 2001-10-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2537 joules per kilogram.LCLEL10008507005003002001001 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 2001-10-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
2537 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
640 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.9
Supercell composite
6.4

Open this sounding in Storm Lab

The text

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

335 
WUUS54 KLCH 130349
SVRLCH
LAC009-079-130430-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1047 PM CDT FRI OCT 12 2001

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RAPIDES PARISH IN CENTRAL LOUISIANA
  NORTHWESTERN AVOYELLES PARISH IN CENTRAL LOUISIANA

* UNTIL 1130 PM CDT

* AT 1045 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 22 MILES WEST OF EFFIE...MOVING NORTHEAST AT 25
  MPH. ANOTHER SEVERE THUNDERSTORM WAS JUST EAST OF FOREST HILL...   
  MOVING EAST AT 25 MPH.

* THESE STORMS WILL BE NEAR...
  LECOMPTE BY 1055 PM CDT
  ECHO...CHENEYVILLE BY 1110 PM CDT
  CENTERPOINT BY 1125 PM CDT
  DEVILLE...EFFIE BY 1130 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 WEATHER TO THE WEATHER SERVICE.

LAT...LON 3116 9265 3100 9254 3111 9193 3143 9217

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 Oct 12, 9:07 PM CDT, 1 hour 40 minutes earlier.

Area forecast discussion, Oct 12, 9:07 PM CDT, 1 hour 40 minutes before
SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS FORECAST DISCUSSION...
NATIONAL WEATHER SERVICE LAKE CHARLES LA
907 PM CDT FRI OCT 12 2001

.OVERNIGHT...
ITS BEEN A LONG DAY...COURTESY OF THE SEVERE WEATHER.

.LCH...FFA (FLOOD WATCH) TXZ180>182-201-215-216
    ...                  LAZ027-030-031-041-042-051

.PREVAILING NUMBERS...
AEX 70/78/55/76/49/73/50 4830000
BPT 73/80/56/77/55/75/58 4800000
LCH 72/80/56/77/53/75/57 4800000
LFT 70/83/58/76/52/73/54 4830000

TRARES

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 12, 7:12 PM CDTSevere Thunderstorm WarningLCHBeauregard63 min
Oct 12, 7:30 PM CDTTornado WarningLCHBeauregard45 min
Oct 12, 8:43 PM CDTSevere Thunderstorm WarningLCHVernon47 min
Oct 12, 9:00 PM CDTSevere Thunderstorm WarningLCHAllen60 min
Oct 12, 9:48 PM CDTSevere Thunderstorm WarningLCHRapides57 min
Oct 13, 4:47 AM CDTSpecial Marine WarningLCH43 min
Oct 13, 4:47 AM CDTSpecial Marine WarningLCH43 min
Oct 13, 5:02 AM CDTTornado WarningLCHBeauregard28 min
Oct 13, 5:05 AM CDTTornado WarningLCHVernon55 min
Oct 13, 5:24 AM CDTTornado WarningLCHBeauregard36 min
Oct 13, 5:33 AM CDTSpecial Marine WarningLCH57 min
Oct 13, 5:33 AM CDTSpecial Marine WarningLCH57 min
Oct 13, 5:40 AM CDTSevere Thunderstorm WarningLCHCalcasieu65 min
Oct 13, 5:48 AM CDTSevere Thunderstorm WarningLCHCameron57 min
Oct 13, 6:02 AM CDTSevere Thunderstorm WarningLCHRapides58 min
Oct 13, 6:25 AM CDTSevere Thunderstorm WarningLCHAllen, Beauregard65 min
Oct 13, 6:34 AM CDTSevere Thunderstorm WarningLCHVermilion56 min
Oct 13, 6:47 AM CDTSevere Thunderstorm WarningLCHCalcasieu, Cameron58 min
Oct 13, 6:57 AM CDTSevere Thunderstorm WarningLCHRapides48 min
Oct 13, 7:00 AM CDTSevere Thunderstorm WarningLCHJefferson Davis60 min
Oct 13, 7:10 AM CDTSevere Thunderstorm WarningLCHAvoyelles65 min
Oct 13, 7:13 AM CDTSevere Thunderstorm WarningLCHEvangeline62 min
Oct 13, 7:26 AM CDTSpecial Marine WarningLCH64 min
Oct 13, 7:26 AM CDTSpecial Marine WarningLCH64 min
Oct 13, 7:26 AM CDTSpecial Marine WarningLCH64 min
Oct 13, 7:26 AM CDTSpecial Marine WarningLCH64 min
Oct 13, 7:32 AM CDTSevere Thunderstorm WarningLCHAllen58 min
Oct 13, 7:56 AM CDTSevere Thunderstorm WarningLCHAcadia64 min
Oct 13, 8:08 AM CDTSevere Thunderstorm WarningLCHVermilion67 min
Oct 13, 8:31 AM CDTSevere Thunderstorm WarningLCHSaint Landry59 min
Oct 13, 8:37 AM CDTTornado WarningLCHAcadia23 min
Oct 13, 8:39 AM CDTTornado WarningLCHVermilion66 min
Oct 13, 8:42 AM CDTSevere Thunderstorm WarningLCHLafayette63 min
Oct 13, 8:51 AM CDTSpecial Marine WarningLCH54 min
Oct 13, 8:51 AM CDTSpecial Marine WarningLCH54 min
Oct 13, 8:51 AM CDTSpecial Marine WarningLCH54 min
Oct 13, 9:05 AM CDTSevere Thunderstorm WarningLCHAcadia25 min
Oct 13, 9:24 AM CDTSevere Thunderstorm WarningLCHSaint Martin66 min
Oct 13, 9:43 AM CDTSevere Thunderstorm WarningLCHIberia62 min
Oct 13, 10:25 AM CDTSevere Thunderstorm WarningLCHSt. Mary65 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; radar from the NEXRAD Level II archive.