Alert archive / Louisiana / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 4, NWS Lake Charles, LA

March 25, 2002Beauregard Parish, Vernon Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 25, 2002, 10:27 PM CST for Beauregard Parish, Vernon Parish, Louisiana. It was in force for 63 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 25, 2002, 10:27 PM CST (04:27 UTC)
Expired: Mar 25, 2002, 11:30 PM CST
In force: 63 min
Issued by: NWS Lake Charles, LA
Area: Counties, with a storm outline in the text

Counties Beauregard Parish, LA, Vernon Parish, LA

What was reported inside it

Time	Report	Where	Remark
Mar 25, 10:37 PM CST	Thunderstorm Wind	Leesville, LA
Mar 25, 10:38 PM CST	Thunderstorm Wind	De Ridder, 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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 25, 7:30 PM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 4.5 hours before the alert went out and 108 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: 819 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 932 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 77 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KLCH 260427 CCA
SVRLCH
LAC011-115-260530-

BULLETIN - IMMEDIATE BROADCAST REQUESTED...CORRECTION
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1023 PM CST MON MAR 25 2002

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  VERNON PARISH IN WEST CENTRAL LOUISIANA
  BEAUREGARD PARISH IN SOUTHWEST LOUISIANA

* UNTIL 1130 PM CST

* AT 1015 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM ALONG A LINE EXTENDING FROM 22 MILES WEST OF
  ANACOCO TO 31 MILES SOUTHWEST OF DE RIDDER...MOVING NORTHEAST AT
  25 MPH.

* THIS STORM WILL BE NEAR...
  ROSEPINE...DE RIDDER BY 1030 PM CST
  PICKERING...NEW LLANO...LEESVILLE...FORT POLK BY 1035 PM CST
  KURTHWOOD BY 1040 PM CST

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

TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS.

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

LAT...LON 3135 9340 3061 9353 3075 9320 3138 9312

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 25, 9:49 PM CST	Severe Thunderstorm Warning	LCH	Rapides	56 min
Mar 25, 10:24 PM CST	Severe Thunderstorm Warning	LCH	Beauregard, Vernon	66 min
Mar 25, 10:53 PM CST	Severe Thunderstorm Warning	LCH	Avoyelles	52 min
Mar 26, 12:09 AM CST	Severe Thunderstorm Warning	LCH	Rapides	66 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.