Alert archive / Louisiana / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 6, NWS Lake Charles, LA

March 10, 2000Vernon Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 10, 2000, 3:26 PM CST for Vernon Parish, Louisiana. It was in force for 64 min. 2 reports came from 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, with what was reported inside it.

The facts

Issued: Mar 10, 2000, 3:26 PM CST (21:26 UTC)
Expired: Mar 10, 2000, 4:30 PM CST
In force: 64 min
Issued by: NWS Lake Charles, LA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Vernon Parish, LA

What was reported inside it

Time	Report	Where	Remark
Mar 10, 4:00 PM CST	Hail 1.75	Leesville, LA
Mar 10, 4:00 PM CST	Thunderstorm Wind 50 E	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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 10, 1:00 PM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.4 hours before the alert went out and 119 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: 1937 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 542 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 79 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KLCH 102129
SVRLCH
LAC115-102230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
326 PM CST FRI MAR 10 2000

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

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

* UNTIL 430 PM CST

* AT 321 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM 15 MILES SOUTHWEST OF LEESVILLE...MOVING     
  NORTHEAST AT 25 MPH.

* THIS STORM WILL BE NEAR...
  LEESVILLE BY 340 PM
  NEW LLANO BY 340 PM
  SLAGLE BY 350 PM
  SIMPSON BY 400 PM

HAIL TO THE SIZE OF QUARTERS CAN BE EXPECTED.

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

LAT...LON 3122 9353 3099 9350 3116 9281 3135 9300

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 Mar 10, 2:56 PM CST, 30 minutes earlier.

Area forecast discussion, Mar 10, 2:56 PM CST, 30 minutes before

SOUTHEAST TEXAS AND SOUTHWEST LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
256 PM CST FRI MAR 10 2000

MODELS INDICATE UPPER DIVERGENT PATTERN WILL MOVE INTO WESTERN PARTS
OF THE FORECAST AREA BY MIDNIGHT TONIGHT AND MOVE EAST OF...OR
WEAKEN OVER...THE EASTERN EXTREMES OF THE AREA SATURDAY MORNING. MID
AND UPPER LEVEL SHORTWAVE TROUGH AXIS SHOULD BE OVER THE LOCAL AREA
AT MID-DAY SATURDAY. AHEAD OF THIS TROUGH...700-300 MB Q-VECTOR
CONVERGENCE WILL BE INCREASING EXTREME NORTHWEST BY MIDNIGHT TONIGHT
WITH A MODERATE TO STRONG Q-VECTOR CONVERGENCE RIDGE MOVING SOUTHEAST
OVER THE AREA TONIGHT INTO MID-DAY SATURDAY WEAKENING OVER THE EAST
SATURDAY AFTERNOON. AREA OF STRONG UPWARD VERTICAL VELOCITIES /OMEGA/
WILL BEGIN MOVING INTO THE NORTHWESTERN PARTS OF THE AREA THIS
EVENING...MOVE OVER THE NORTHWEST THROUGH THE MIDNIGHT HOURS AND BE
WEAKENING AND EXITING THE SOUTHEAST PART OF THE AREA SATURDAY
MORNING. STRONGEST MID AND UPPER LEVEL INSTABILITY IS PROGGED TO BE
MAINLY ALONG AND BEHIND THE SURFACE FRONT. THE SURFACE COLD FRONT IS
PROGGED TO MOVE INTO THE NORTHWEST EXTREMES OF THE AREA THIS EVENING
AND MOVE OUT TO THE EAST SATURDAY MORNING. MODELS INDICATE THAT THERE
WILL BE HIGH MEAN RELATIVE HUMIDITIES AND MOISTURE BEHIND THE FRONT
FOR THE LOCAL AREA SATURDAY. MEAN RELATIVE HUMIDITY PROGS SHOW
CONSIDERABLE MOISTURE NEAR AND AHEAD OF THE FRONT MOVING EAST OVER
THE NORTHERN PARTS OF THE AREA TONIGHT WITH MOISTURE THINNER AND
MAINLY BEHIND FRONT SOUTH PART. MODERATE TO HIGH MEAN RELATIVE
HUMIDITIES SHOULD LINGER OVER EASTERN PARTS OF THE AREA SATURDAY
MORNING BUT DRY AIR IS PROGGED FOR THE ENTIRE AREA SATURDAY AFTERNOON
THROUGH SUNDAY.

CHANCES OF RAIN WILL BE BETTER IN HIGHER INSTABILITY AND MOISTURE
NORTH PART. WILL KEEP POPS IN LIKELY CATEGORY NORTH PART AND HAVE
MAINLY CHANCE POPS SOUTH PART FOR TONIGHT. WILL CARRY SLIGHT CHANCE
POPS CENTRAL AND CHANCE POPS EAST FOR SATURDAY MORNING IN HIGHER
MOISTURE AND INSTABILITY BEHIND FRONT. NGM MOS TEMPERATURES LOOK
ABOUT RIGHT.

.LCH...SMALL CRAFT ADVISORY CAMERON LOUISIANA TO HIGH ISLAND TEXAS
 LA...SMALL CRAFT ADVISORY GMZZ450-470
 TX...SMALL_ CRAFT ADVISORY GMZ450-470

.PRELIMINARY NUMBERS...
BPT 55/65/43/66 6000
LCH 54/63/40/66 5200
LFT 54/61/40/63 4200
AEX 52/59/38/64 8300

In the hours before

Special weather statement, Mar 10, 11:09 AM CST, 4 hours 17 minutes before

LAZ027>033-041>045-051>055-TXZ180>182-201-215-216-110400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1109 AM CST FRI MAR 10 2000

...THERE IS A RISK OF SEVERE WEATHER THIS AFTERNOON INTO TONIGHT FOR
SOUTHEAST TEXAS AND CENTRAL AND SOUTHERN LOUISIANA...

SCATTERED SHOWERS AND THUNDERSTORMS ARE FORECAST TO DEVELOP ACROSS
SOUTHEAST TEXAS AND CENTRAL AND SOUTHWEST LOUISIANA THIS AFTERNOON.
A SQUALL LINE IS FORECAST TO DEVELOP INTO SOUTHEAST TEXAS THIS
EVENING AND MOVE EAST THROUGH LOUISIANA TONIGHT. SEVERE THUNDERSTORMS
ARE POSSIBLE WITH THE SQUALL LINE. THE PRIMARY THREAT WILL BE
DAMAGING WINDS AND LARGE HAIL. ISOLATED TORNADOES WILL ALSO BE
POSSIBLE...MAINLY OVER THE LAKES AREA OF INTERIOR SOUTHEAST TEXAS
INTO CENTRAL LOUISIANA.

THE THUNDERSTORM ACTIVITY WILL BE IN RESPONSE TO A STRONG UPPER
LEVEL DISTURBANCE AND AN ASSOCIATED COLD FRONT THAT WILL MOVE ACROSS
THE REGION THIS EVENING AND TONIGHT.

WIDESPREAD ONE TO TWO INCH RAINFALL TOTALS ARE EXPECTED ACROSS THE
REGION. THE HEAVIEST RAINS ARE EXPECTED OVER THE LAKES AREA OF
SOUTHEAST TEXAS AND CENTRAL SECTIONS OF LOUISIANA. THIS RAINFALL
HOWEVER...WILL NOT END THE DROUGHT CONDITIONS ONGOING ACROSS THE
REGION AS RAPID RUNOFF FROM DROUGHT HARDENED GROUNDS CAN BE
EXPECTED.

ACTIVATION OF STORM SPOTTERS WILL LIKELY BE REQUIRED THIS AFTERNOON.
RESIDENTS WITH NOAA WEATHER RADIOS SHOULD SET THEIR RADIOS FOR ALERT.
ADDITIONAL WEATHER INFORMATION CAN ALSO BE OBTAINED THROUGH THE LAKE
CHARLES NATIONAL WEATHER SERVICE WEB SITE AT WWW.SRH.NOAA.GOV/LCH.

SPARKS

Local storm report, Mar 10, 2:21 PM CST, 1 hour 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
221 PM CST FRI MAR 10 2000

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

0105 PM    2 NW JASPER               TX   .75 INCH HAIL
03/10/00   JASPER

RE

Local storm report, Mar 10, 2:39 PM CST, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
239 PM CST FRI MAR 10 2000

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

0200 PM    BURKEVILLE                TX   1.75 INCH HAIL
03/10/00   NEWTON

RE

Local storm report, Mar 10, 2:45 PM CST, 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
245 PM CST FRI MAR 10 2000

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

0130 PM    2 W BURKEVILLE            TX   1.00 INCH HAIL
03/10/00   NEWTON

RE

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 10, 2:36 PM CST	Severe Thunderstorm Warning	LCH	Vernon	54 min
Mar 10, 4:14 PM CST	Severe Thunderstorm Warning	LCH	Rapides	61 min
Mar 10, 4:24 PM CST	Tornado Warning	LCH	Vernon	66 min
Mar 10, 4:44 PM CST	Severe Thunderstorm Warning	LCH	Avoyelles	61 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2000 Every severe thunderstorm warning in 2000

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.