Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 112, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Dec 21, 1997, 1:31 AM CST for Vernon Parish, Louisiana. It was in force for 49 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 21, 1997, 1:31 AM CST (07:31 UTC)
- Expired
- Dec 21, 1997, 2:20 AM CST
- In force
- 49 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
County Vernon Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 21, 2:00 AM CST | Thunderstorm Wind | Leesville, 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 nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 7.5 hours before the alert went out and 110 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 496 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 325 m²/s²
- 0-3 km storm-relative helicity
- 420 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KLCH 210733
SVRLCH
LAC115-210820-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
131 AM CST SUN DEC 21 1997
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES LA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 220 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
IN SOUTHWESTERN LOUISIANA
VERNON PARISH
AT 130 AM CST...NEXRAD DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
ENTERING WESTERN VERNON PARISH. THE COMMUNITIES OF ANACOCO AND
LEESVILLE ARE IN THE PATH OF THIS STORM.
SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND TORRENTIAL RAIN. FOR
YOUR PROTECTION...SEEK SHELTER IN A\ STRONG BUILDING. STAY AWAY
FROM WINDOWS AND AVOID USING TELEPHONES...COMPUTERS...OR OTHER
ELECTRICAL EQUIPMENT UNTIL THE STORM HAS PASSED.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 20, 8:42 PM CST, 4 hours 49 minutes earlier.
Area forecast discussion, Dec 20, 8:42 PM CST, 4 hours 49 minutes before
SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 840 PM CST SAT DEC 20 1997 OOZ LCH SOUNDING SHOWS BIG INCREASE IN MOISTURE AND DESTABILIZATION OVER AREA AS PW UP FROM 0.87 TO 1.43 AND LI DECREASING FROM 10 TO (-1). UPPER AIR ANALYSIS SHOWS LEFT FRONT QUAD OF H3 120 KT JET STREAK SHOULD MOVE OVER FA SHORTLY ALONG WITH DRY PUNCH AT H7. ALSO...VWP ON KLCH AND KPOE STILL SHOWS GOOD LOW LEVEL WIND SHEAR. KLCH RADAR ALSO RECENTLY SHOWING STORMS BEGINNING TO SHOW ROTATION IN SOUTHEAST TEXAS. THEREFORE...SEVERE AND HEAVY RAIN WORDING IN FORECAST STILL LOOKS GOOD. THUMBNAIL SKETCH SHOWS LINE OF STORMS IN CENTRAL TX REACHING BPT BY 6Z...LCHL 8Z...AEX AND LFT 9-10Z. 7
Nearby
Severe Thunderstorm Warnings in Louisiana, 1997Every severe thunderstorm warning in 1997
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.