Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 179, NWS Lake Charles, LA

December 22, 2001Calcasieu Parish, Cameron Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Dec 22, 2001, 9:27 PM CST for Calcasieu Parish, Cameron Parish, Louisiana. It was in force for 48 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, 9:27 PM CST (03:27 UTC)
Expired: Dec 22, 2001, 10:15 PM CST
In force: 48 min
Issued by: NWS Lake Charles, LA
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Calcasieu Parish, LA, Cameron Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 3.5 hours before the alert went out and 13 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

089 
WUUS54 KLCH 230329
SVRLCH
LAC019-023-230415-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
927 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
  CAMERON PARISH IN SOUTHWEST LOUISIANA

* UNTIL 1015 PM CST

* AT 920 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES SOUTH OF GRAND LAKE...MOVING NORTHEAST
  AT 40 MPH.

* THIS STORM WILL BE NEAR...
GRAND LAKE AT 940 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.

DESTRUCTIVE WINDS CAN BE EXPECTED - TAKE COVER NOW VEHICLES AND
MOBILE HOMES ARE NOT SAFE.

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

LAT...LON 3000 9346 2987 9330 2995 9299 3025 9312

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, 1 hour 27 minutes earlier.

Area forecast discussion, Dec 22, 8:00 PM CST, 1 hour 27 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

In the hours before

Local storm report, Dec 22, 9:00 PM CST, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
900 PM CST SAT DEC 22 2001

TIME(CST)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0840 PM    GILLIS                    LA   WIND DAMAGE
12/22/01   CALCASIEU                      BARN MOVED OFF FOUNDATION
                                          AT 855 GILLIS LANE.

0840 PM    GILLIS                    LA   .88 INCH HAIL
12/22/01   CALCASIEU

THM

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 22, 8:26 PM CST	Severe Thunderstorm Warning	LCH	Calcasieu	64 min
Dec 22, 9:24 PM CST	Special Marine Warning	LCH		66 min
Dec 22, 9:24 PM CST	Special Marine Warning	LCH		66 min
Dec 22, 9:41 PM CST	Severe Thunderstorm Warning	LCH	Allen, Rapides	64 min
Dec 22, 10:40 PM CST	Severe Thunderstorm Warning	LCH	Rapides	65 min
Dec 22, 10:45 PM CST	Special Marine Warning	LCH		60 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2001 Every 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.