Alert archive / Louisiana / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 113, NWS Lake Charles, LA

December 24, 2002Cameron Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Dec 24, 2002, 12:00 AM CST for Cameron Parish, Louisiana. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Dec 24, 2002, 12:00 AM CST (06:00 UTC)
Expired: Dec 24, 2002, 1:00 AM CST
In force: 60 min
Issued by: NWS Lake Charles, LA
Area: Counties, with a storm outline in the text

County Cameron Parish, LA

The radar

The Lake Charles radar (KLCH), 21 km from the middle of the area, began a volume at 06:00 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Dec 23, 7:10 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 6.0 hours before the alert went out and 21 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: 2187 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 466 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 254 m²/s²
0-3 km storm-relative helicity: 247 m²/s²
Significant tornado parameter: 2.7
Supercell composite: 12.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KLCH 240600
SVRLCH
LAC023-240700-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1158 PM CST MON DEC 23 2002

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

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

* UNTIL 100 AM CST

* AT 1155 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM ALONG A LINE EXTENDING FROM 14 MILES NORTHWEST
  OF GRAND LAKE TO 18 MILES SOUTHEAST OF SABINE NATIONAL WILDLIFE    
  REFUGE...MOVING EAST AT 30 MPH.

* THIS STORM WILL BE NEAR...
  CREOLE BY 1210 AM CST
  LACASSINE NATIONAL WILDLIFE REFUGE BY 1220 AM CST
  KLONDIKE BY 1230 AM CST

SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MPH...DESTRUCTIVE 
HAIL...DEADLY LIGHTNING AND TORRENTIAL RAIN. REMEMBER TORNADOES CAN 
AND DO FORM WITH LITTLE OR NO WARNING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST TUESDAY MORNING
FOR SOUTH CENTRAL LOUISIANA. A TORNADO WATCH ALSO REMAINS IN EFFECT
UNTIL 300 AM CST TUESDAY MORNING FOR SOUTHWESTERN LOUISIANA AND
SOUTHEAST TEXAS.

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

LAT...LON 3006 9369 2982 9372 2974 9262 3003 9263

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 23, 10:55 PM CST	Special Marine Warning	LCH		95 min
Dec 23, 11:15 PM CST	Severe Thunderstorm Warning	LCH	Vernon	60 min
Dec 23, 11:27 PM CST	Severe Thunderstorm Warning	LCH	Beauregard	63 min
Dec 23, 11:34 PM CST	Severe Thunderstorm Warning	LCH	Calcasieu	56 min
Dec 23, 11:58 PM CST	Severe Thunderstorm Warning	LCH	Cameron	62 min
Dec 24, 12:05 AM CST	Severe Thunderstorm Warning	LCH	Allen	55 min
Dec 24, 12:22 AM CST	Special Marine Warning	LCH		83 min
Dec 24, 12:22 AM CST	Special Marine Warning	LCH		83 min
Dec 24, 12:26 AM CST	Severe Thunderstorm Warning	LCH	Jefferson Davis	64 min
Dec 24, 12:35 AM CST	Severe Thunderstorm Warning	LCH	Rapides	55 min
Dec 24, 12:37 AM CST	Severe Thunderstorm Warning	LCH	Evangeline	53 min
Dec 24, 12:52 AM CST	Severe Thunderstorm Warning	LCH	Avoyelles	53 min
Dec 24, 1:05 AM CST	Severe Thunderstorm Warning	LCH	Saint Landry	55 min
Dec 24, 1:12 AM CST	Severe Thunderstorm Warning	LCH	Acadia	63 min
Dec 24, 1:45 AM CST	Special Marine Warning	LCH		90 min
Dec 24, 1:45 AM CST	Special Marine Warning	LCH		90 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2002 Every severe thunderstorm warning in 2002

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.