Alert archive / Louisiana / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 28, NWS Lake Charles, LA

March 18, 2000Vernon Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 18, 2000, 4:10 PM CST for Vernon Parish, Louisiana. It was in force for 65 min. 1 report 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 18, 2000, 4:10 PM CST (22:10 UTC)
Expired: Mar 18, 2000, 5:15 PM CST
In force: 65 min
Issued by: NWS Lake Charles, LA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Vernon Parish, LA

The radar

The Ft Polk radar (KPOE), 29 km from the middle of the area, began a volume at 22:11 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.

What was reported inside it

Time	Report	Where	Remark
Mar 18, 4:30 PM CST	Hail 0.88	Rosepine, 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 18, 3:15 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 10.2 hours before the alert went out and 104 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: 46 J/kg
Mixed-layer CIN: -332 J/kg
Mixed-layer LCL: 812 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KLCH 182211
SVRLCH
LAC115-182315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
410 PM CST SAT MAR 18 2000

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

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

* UNTIL 515 PM CST

* AT 404 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES SOUTHWEST OF ROSEPINE...MOVING NORTHEAST AT
  30 MPH.

* THIS STORM WILL BE NEAR...
  FORT POLK BY 425 PM CST...
  SLAGLE BY 445 PM CST...
  ANACOCO BY 450 PM CST...

THIS THUNDERSTORM IS CAPABLE OF PRODUCING VERY LARGE HAIL WHICH COULD
CAUSE SIGNIFICANT DAMAGE TO PROPERTY.

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

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 800 PM CST 
SATURDAY EVENING FOR SOUTHWEST LOUISIANA.

LAT...LON 3090 9352 3089 9284 3131 9289 3127 9351

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 18, 2:45 PM CST, 1 hour 25 minutes earlier.

Area forecast discussion, Mar 18, 2:45 PM CST, 1 hour 25 minutes before

SOUTHEAST TEXAS AND SOUTHWEST LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
245 PM CST SAT MAR 18 2000

STORMS THIS AFTERNOON FOCUSING ALONG WARM FRONT WITH NUMEROUS
REPORTS OF LARGE HAIL IN LAFAYETTE PARISH AND ADJACENT PARISHES.
STRONGEST STORMS CURRENTLY IN THE WESTERN PORTION OF THE FORECAST
AREA ALTHOUGH STORMS ARE DEVELOPING OVER EASTERN TX MOVING TOWARDS
THE EXTREME SOUTHEAST TX WITH SVR TSTM WATCH IN THIS AREA.
ENVIRONMENT REMAINS FAVORABLE FOR ADDITIONAL DEVELOPMENT THROUGH THE
EVENING HOURS.

STORMS ENDING LATER THIS EVE WITH RAIN ENDING TWRDS SUNRISE... AS UPPER
SYSTEM MOVES EAST.

.LCH...
LA...NONE
TX...NONE

.PRELIM...
BP7T 60/68/43/71 9000
LCH 62/68/43/70 9000
LFT 60/69/53/67 9000
AEX 59/60/43/68 9000

KUYPER

In the hours before

Local storm report, Mar 18, 2:06 PM CST, 2 hours 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
206 PM CST SAT MAR 18 2000

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

0106 PM    ABBEVILLE                 LA   .88 INCH HAIL
03/18/00   VERMILION

Local storm report, Mar 18, 2:19 PM CST, 1 hour 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
219 PM CST SAT MAR 18 2000

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

0220 PM    5 N ARNAUDVILLE           LA   1.00 INCH HAIL
03/18/00   ST. LANDRY

Local storm report, Mar 18, 2:47 PM CST, 1 hour 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
247 PM CST SAT MAR 18 2000

TIME(CST)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....5

0245 PM    WOODVILLE                 TX   1.75 INCH HAIL
03/18/00   TYLER

Local storm report, Mar 18, 3:11 PM CST, 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
311 PM CST SAT MAR 18 2000

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

0305 PM    MAMOU                     LA   1.75 INCH HAIL
03/18/00   EVANGELINE                     REPORTED BY PUBLIC

ZA

Local storm report, Mar 18, 3:24 PM CST, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
324 PM CST SAT MAR 18 2000

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

0315 PM    VILLE PLATTE              LA   1.00 INCH HAIL
03/18/00   EVANGELINE                     REPORTED BY PUBLIC

Local storm report, Mar 18, 3:49 PM CST, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
349 PM CST SAT MAR 18 2000

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

0340 PM    MITTIE                    LA   1.00 INCH HAIL
03/18/00   ALLEN                          REPORTED BY PUBLIC

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 18, 12:33 PM CST	Severe Thunderstorm Warning	LCH	Vermilion	57 min
Mar 18, 1:09 PM CST	Severe Thunderstorm Warning	LCH	Lafayette	66 min
Mar 18, 1:25 PM CST	Severe Thunderstorm Warning	LCH	Saint Martin	65 min
Mar 18, 1:46 PM CST	Severe Thunderstorm Warning	LCH	Saint Landry	59 min
Mar 18, 2:33 PM CST	Severe Thunderstorm Warning	LCH	Acadia	42 min
Mar 18, 2:50 PM CST	Severe Thunderstorm Warning	LCH	Evangeline	55 min
Mar 18, 3:14 PM CST	Severe Thunderstorm Warning	LCH	Allen	61 min
Mar 18, 3:27 PM CST	Severe Thunderstorm Warning	LCH	Beauregard	33 min
Mar 18, 3:54 PM CST	Severe Thunderstorm Warning	LCH	Beauregard, Calcasieu	66 min
Mar 18, 3:54 PM CST	Severe Thunderstorm Warning	LCH	Allen	66 min
Mar 18, 4:14 PM CST	Severe Thunderstorm Warning	LCH	Rapides	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; radar from the NEXRAD Level II archive.