Alert archive / Louisiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 6, NWS Lake Charles, LA

January 12, 1998Evangeline Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jan 12, 1998, 1:47 AM CST for Evangeline Parish, Louisiana. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 12, 1998, 1:47 AM CST (07:47 UTC)
Expired
Jan 12, 1998, 2:20 AM CST
In force
33 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Evangeline Parish, LA

The watch it was issued in

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

IssuedProductOfficeLasted
Jan 11, 11:30 PM CSTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 7.8 hours before the alert went out and 102 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 1998-01-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 16 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 1998-01-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 148 square meters per square second.1939587897117Sfc1 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
16 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
953 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
148 m²/s²
0-3 km storm-relative helicity
253 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

421 
WUUS1 KLCH 120750 RRA
SVRLCH
LAC039-120820-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
147 AM CST MON JAN 12 1998

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

   ...EVANGELINE PARISH

AT 145 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM NEAR THE TOWN OAKDALE. THE SEVERE STORM
WAS MOVING TO THE EAST AT 40 MPH. THE TOWNS OF PINE PRARIE AND
TURKEY CREEK ARE IN THE PATH OF THIS STORM. THE MAIN THREAT FROM
THIS STORM WILL BE LARGE HAIL AND DAMAGING WINDS.

THIS IS A VERY DANGEROUS STORM. FOR YOUR PROTECTION...SEEK SHELTER
IMMEDIATELY IN A STRONG BUILDING. MOVE TO AN INTERIOR ROOM...SUCH
AS A CLOSET OR BATHROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. DO NOT STAND BY WINDOWS.

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 Jan 11, 8:17 PM CST, 5 hours 30 minutes earlier.

Area forecast discussion, Jan 11, 8:17 PM CST, 5 hours 30 minutes before
SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
817 PM CST SUN JAN 11 1998

WL KEEP POPS HIGH FOR TONIGHT AS AMS ACROSS THE FA CONTINUES TO
DESTABILIZE. UPPER LEVEL DYNAMICS ARE KIND OF TRICKY. IT LUKS LIKE
THE AREA WILL BE INFLUENCED BY A JET COUPLET TONIGHT WITH THE
RR QUAD OF ONE JET STREAK MOVING ACROSS EASTERN TEXAS NOW AND THE
LF QUAD OF ANOTHER JET STREAK MOVING OVER THE NW GULF OF MEXICO.
A SFC TROF WILL CURRENTLY OVER SOUTH CENTRAL TX WILL MOVE INTO
THE AREA LATER TONIGHT. SEVERE WX IS ALSO POSSIBLE WITH LIS IN THE
0 TO -4 RANGE AND GOOD DIRECTIONAL AND SPEED SHEAR.

SO...WITH THIS SAID...CURRENT FCST LUKS GUD.

10

In the hours before

Local storm report, Jan 11, 11:35 PM CST, 2 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1135 PM CST SUN JAN 11 1998

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

1035 PM    WARREN                    TX   0.75 INCH HAIL
01/11/98   TYLER                          NICKEL SIZE HAIL REPORTED BY
                                          TELEVISION STATION WEATHER
                                          OBSERVOR.
Local storm report, Jan 12, 12:21 AM CST, 1 hour 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1221 AM CST MON JAN 12 1998

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

645 AM     S LACASSINE               LA   WIND DAMAGE
01/12/98   JEFFERSON DAVIS                POWER LINES DOWNED DUE TO
                                          TREE LIMBS. HWY 101 JUST
                                          SOUTH OF LACASSINE. REPORTED
                                          BY JEFF DAVIS ELECTRIC.
Local storm report, Jan 12, 12:48 AM CST, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1248 AM CST MON JAN 12 1998

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

1130 PM    KIRBYVILLE                TX   0.75 INCH HAIL
01/11/98   JASPER                         DIME SIZE HAIL REPORTED BY
                                          JASPER COUNTY SHERIFFS
                                          OFFICE PERSONNEL.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 12, 1:05 AM CSTTornado WarningLCHBeauregard50 min
Jan 12, 1:23 AM CSTTornado WarningLCHAllen47 min
Jan 12, 2:11 AM CSTTornado WarningLCHAllen29 min
Jan 12, 2:25 AM CSTSevere Thunderstorm WarningLCHEvangeline45 min
Jan 12, 2:33 AM CSTFlash Flood WarningLCHAllen, Evangeline117 min
Jan 12, 2:33 AM CSTFlash Flood WarningLCHBeauregard117 min
Jan 12, 2:38 AM CSTSevere Thunderstorm WarningLCHAvoyelles62 min
Jan 12, 3:13 AM CSTTornado WarningLCHEvangeline47 min
Jan 12, 3:53 AM CSTSevere Thunderstorm WarningLCHSaint Landry62 min
Jan 12, 4:29 AM CSTSevere Thunderstorm WarningLCHCalcasieu61 min
Jan 12, 4:52 AM CSTFlash Flood WarningLCHAllen, Evangeline4 hr
Jan 12, 5:33 AM CSTFlash Flood WarningLCHBeauregard4 hr
Jan 12, 5:43 AM CSTFlash Flood WarningLCHSaint Landry2 hr
Jan 12, 7:01 AM CSTFlash Flood WarningLCHCalcasieu, Jefferson Davis119 min
Jan 12, 7:47 AM CSTFlash Flood WarningLCHSaint Landry118 min
Jan 12, 8:11 AM CSTFlash Flood WarningLCHAcadia119 min
Jan 12, 9:02 AM CSTFlash Flood WarningLCHAllen, Evangeline, Jefferson Davis3 hr
Jan 12, 9:02 AM CSTFlash Flood WarningLCHBeauregard, Calcasieu3 hr
Jan 12, 9:50 AM CSTFlash Flood WarningLCHAcadia, Saint Landry2 hr

Nearby

Severe Thunderstorm Warnings in Louisiana, 1998Every severe thunderstorm warning in 1998

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.