Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 178, NWS Lake Charles, LA

December 22, 2001Calcasieu Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Dec 22, 2001, 8:26 PM CST for Calcasieu Parish, Louisiana. It was in force for 64 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
Dec 22, 2001, 8:26 PM CST (02:26 UTC)
Expired
Dec 22, 2001, 9:30 PM CST
In force
64 min
Issued by
NWS Lake Charles, LA
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Calcasieu Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 2.4 hours before the alert went out and 34 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 2001-12-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 555 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 2001-12-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 129 square meters per square second.1939587897Sfc1 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
555 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
767 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
278 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.0

Open this sounding in Storm Lab

The text

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

936 
WUUS54 KLCH 230226
SVRLCH
LAC019-230330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
826 PM CST SAT DEC 22 2001

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

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

* UNTIL 930 PM CST

* AT 820 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER CENTRAL CALCASIEU PARISH...MOVING
  NORTHEAST AT 40 MPH.

* THIS STORM WILL BE NEAR...
NORTH OF MOSS BLUFF AND BY GILLIS BY 845 PM

SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MPH...DESTRUCTIVE
HAIL...DEADLY LIGHTNING AND TORRENTIAL RAIN.

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 3023 9367 3017 9353 3032 9324 3041 9343

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 Dec 22, 8:00 PM CST, 26 minutes earlier.

Area forecast discussion, Dec 22, 8:00 PM CST, 26 minutes before
SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
800 PM CST SAT DEC 22 2001

CLEARING LINE OF STORMS MOVING THRU NW TYLER COUNTY AT THIS TIME.
FRONT THRU HOU AND LOOKS TO MOVE THRU LCH AND BPT BEFORE MIDNIGHT...
LFT AROUND 4 AM. SHOWERS LOOK TO END DRG THE EARLY MRNG HOURS. SKIES
CLEARING TOWARDS SUNRISE. LOOKS LIKE A GREAT DAY ON TAP WITH TEMPS
STRUGGLING TO REACH 60 DEGREES.

CHRISTMAS WHICH IS ON EVERYONES MIND... ESPECIALLY IF YOU ARE UNDER
THE AGE OF 15 LOOKS TO BE COLD. CLR SKIES...NO RAIN... MRNG LOWS
STARTING OUT AROUND 30 DOWN TOWARDS THE COAST... MID 20S INLAND
LCTNS. AFTN TEMPS AROUND 50.

WILL UPDATE THE FORECAST FOR MINOR CHANGES.

.LCH...SMALL CRAFT ADVISORY GMZ450-455-470-475

.PRELIM NUMBERS...
AEX 47/57/29/50/25/45 900000
BPT 50/62/34/53/31/50 900000
LCH 54/61/34/52/30/49 900000
LFT 60/60/34/52/29/48 900000

K. KUYPER

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 22, 9:24 PM CSTSpecial Marine WarningLCH66 min
Dec 22, 9:24 PM CSTSpecial Marine WarningLCH66 min
Dec 22, 9:27 PM CSTSevere Thunderstorm WarningLCHCalcasieu, Cameron48 min
Dec 22, 9:41 PM CSTSevere Thunderstorm WarningLCHAllen, Rapides64 min
Dec 22, 10:40 PM CSTSevere Thunderstorm WarningLCHRapides65 min
Dec 22, 10:45 PM CSTSpecial Marine WarningLCH60 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.