Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 172, NWS Lake Charles, LA

December 13, 2001Vernon Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Dec 13, 2001, 11:33 AM CST for Vernon Parish, Louisiana. It was in force for 57 min. No storm report in the archive falls 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.

The facts

Issued: Dec 13, 2001, 11:33 AM CST (17:33 UTC)
Expired: Dec 13, 2001, 12:30 PM CST
In force: 57 min
Issued by: NWS Lake Charles, LA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Vernon Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 5.6 hours before the alert went out and 120 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: 47 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 514 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: -63 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

482 
WUUS54 KLCH 131732
SVRLCH
LAC115-131830-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1133 AM CST THU DEC 13 2001

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

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

* UNTIL 1230 PM CST

* AT 1129 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 20 MILES SOUTHWEST OF LEESVILLE...MOVING
  NORTHEAST AT 40 MPH.

* THIS STORM WILL BE NEAR...
  PICKERING BY 1145 AM CST
  LEESVILLE...NEW LLANO...FORT POLK...ANACOCO BY 1150 AM CST
  SLAGLE BY NOON CST
  KURTHWOOD BY 1205 PM CST
  SIMPSON...LACAMP BY 1210 PM CST

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

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

LAT...LON 3137 9323 3119 9284 3091 9348 3114 9352

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 13, 10:11 AM CST, 1 hour 22 minutes earlier.

Area forecast discussion, Dec 13, 10:11 AM CST, 1 hour 22 minutes before

SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1011 AM CST THU DEC 13 2001

FORECAST LOOKS TO BE ON TRACK FOR THE SHORT TERM. POPS WILL BE HIGH
AHEAD OF COLD FRONT TODAY AND TONIGHT. LATEST MODEL RUNS MOVE LOW
PRESSURE CENTER FROM THE MID TO UPPER SOUTHEAST TEXAS COAST AT MID
DAY ALONG FRONT INTO CENTRAL LOUISIANA THIS EVENING. FRONT SHOULD
TRAIL SOUTH TO SOUTHWEST FROM LOW BUT NOT MAKE IT THROUGH EASTERN
PARTS OF THE AREA BEFORE SUNSET.

WILL INCREASE CHANCE OF RAIN FOR TONIGHT AND RE-ISSUE FLOOD WATCH
FOR THE LOUISIANA PART OF THE AREA FOR TODAY.

.LCH...FLOOD WATCH...FFA....LAZ027>033-041>045-051>055-TODAY.

.PRELIM NUMBERS...
AEX 68/44/57/42/65/56  950017
BPT 69/48/58/47/68/60  930017
LCH 68/48/59/46/68/60  940017
LFT 71/47/59/46/68/60  9700-7

SPARKS

In the hours before

Special weather statement, Dec 13, 6:00 AM CST, 5 hours 33 minutes before

LAZ027>033-041>045-051>055-TXZ180>182-201-215-216-131600-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAKE CHARLES LA
600 AM CST THU DEC 13 2001

...HEAVY RAINS AND POSSIBLE SEVERE WEATHER TODAY...

AN UPPER LEVEL STORM SYSTEM OVER THE SOUTHWESTERN STATES WILL MOVE
EASTWARD TODAY. SOUTHERLY WINDS AHEAD OF THIS SYSTEM WILL BRING
ABUNDANT GULF MOISTURE ACROSS SOUTHEAST TEXAS...AS WELL AS SOUTHERN
AND CENTRAL LOUISIANA.

THIS RICH MOISTURE COMBINED WITH ENERGY FROM A STORM SYSTEM TO THE
WEST WILL PRODUCE WIDESPREAD SHOWERS AND THUNDERSTORMS. RAINFALL
AMOUNTS WILL AVERAGE BETWEEN 2 AND 3 INCHES WITH LOCALIZED AMOUNTS UP
TO 4 INCHES POSSIBLE TODAY. THE LAKE CHARLES WEATHER OFFICE HAS
ALREADY RECEIVED OVER TWO INCHES OF RAIN SINCE MIDNIGHT.

WINDS WILL FAVOR THUNDERSTORMS TO DEVELOP AND MOVE OVER THE SAME
AREAS FOR LONG PERIODS OF TIME. BECAUSE RELATIVELY MOIST GROUNDS
ALREADY EXIST ACROSS THE AREA...THESE RAINFALL AMOUNTS WILL INCREASE
THE CHANCE FOR FLOODING.

ALL INTERESTS LIVING IN FLOOD PRONE AREAS ALONG RIVERS...STREAMS...
CREEKS AND BAYOUS SHOULD CLOSELY MONITOR THIS WEATHER SITUATION OVER
THE NEXT COUPLE OF DAYS.

IN ADDITION...UPPER LEVEL CONDITIONS WILL BECOME FAVORABLE FOR THE
DEVELOPMENT OF LARGE HAIL AND STRONG WINDS WITH SOME OF THE
THUNDERSTORMS TODAY.

STAY TUNED TO YOUR WEATHER RADIO OR LOCAL MEDIA FOR THE LATEST
WEATHER INFORMATION.

K. KUYPER

Special weather statement, Dec 13, 11:01 AM CST, 32 minutes before

LAZ027>033-041>045-051>055-TXZ180>182-201-215-216-140000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1101 AM CST THU DEC 13 2001

...HEAVY RAINS AND POSSIBLE SEVERE WEATHER TODAY...

A SURFACE LOW PRESSURE CENTER ALONG THE MID TO UPPER TEXAS COAST LATE
THIS MORNING IS EXPECTED TO MOVE NORTHEAST INTO CENTRAL LOUISIANA
THIS EVENING. SOUTHERLY WINDS AHEAD OF THIS SYSTEM WILL BRING
MOIST UNSTABLE AIR INTO THE AREA AHEAD OF THE LOW AND A COLD FRONT
THAT WILL TRAIL SOUTHWEST FROM THE LOW.

WIDESPREAD SHOWERS AND THUNDERSTORMS WILL OCCUR IN THE MOIST
UNSTABLE AIR ALONG AND AHEAD OF THE SYSTEM. RAINFALL AMOUNTS WILL
AVERAGE BETWEEN 1 TO 2 INCHES WITH LOCALIZED AMOUNTS OF 3 TO 5 INCHES
POSSIBLE TODAY. PARTS OF THE AREA HAVE ALREADY RECEIVED 2 TO 4 INCHES
OF PRECIPITATION FROM RECENT RAINS. ADDITIONAL RAINS IN THESE AREA
WILL CAUSE RAPID RUNOFF AND POSSIBLY FLOODING.

ALL INTERESTS LIVING IN FLOOD PRONE AREAS ALONG RIVERS...STREAMS...
CREEKS AND BAYOUS SHOULD CLOSELY MONITOR THIS WEATHER SITUATION
TODAY AND TONIGHT.

IN ADDITION...UPPER LEVEL CONDITIONS WILL BECOME FAVORABLE FOR THE
DEVELOPMENT OF LARGE HAIL...STRONG WINDS...AND ISOLATED TORNADOES
WITH SOME OF THE THUNDERSTORMS TODAY.

STAY TUNED TO YOUR WEATHER RADIO OR LOCAL MEDIA FOR THE LATEST
WEATHER INFORMATION.

20

Local storm report, Dec 13, 11:20 AM CST, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
1120 AM CST THU DEC 13 2001

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

1118 AM    NEWTON                    TX   .88 INCH HAIL
12/13/01   NEWTON                         REPORTED BY SHERIFFS DEPT

FN

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 13, 9:30 AM CST	Severe Thunderstorm Warning	LCH	Vernon	60 min
Dec 13, 3:08 PM CST	Severe Thunderstorm Warning	LCH	Vernon	67 min
Dec 13, 3:13 PM CST	Flash Flood Warning	LCH	Vernon	4 hr
Dec 13, 3:25 PM CST	Special Marine Warning	LCH		65 min
Dec 13, 3:25 PM CST	Special Marine Warning	LCH		65 min
Dec 13, 4:26 PM CST	Severe Thunderstorm Warning	LCH	Cameron	49 min
Dec 13, 4:35 PM CST	Severe Thunderstorm Warning	LCH	Allen	55 min
Dec 13, 5:29 PM CST	Special Marine Warning	LCH		61 min
Dec 13, 5:29 PM CST	Special Marine Warning	LCH		61 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2001 Every severe thunderstorm warning in 2001

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.