Alert archive / Louisiana / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 111, NWS Shreveport, LA

March 29, 2000Winn Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Mar 29, 2000, 9:10 PM CST for Winn Parish, Louisiana. It was in force for 50 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: Mar 29, 2000, 9:10 PM CST (03:10 UTC)
Expired: Mar 29, 2000, 10:00 PM CST
In force: 50 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County Winn Parish, LA

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 3.2 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: 1962 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 709 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 251 m²/s²
0-3 km storm-relative helicity: 317 m²/s²
Significant tornado parameter: 3.6
Supercell composite: 17.5

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSHV 300311
SVRSHV
LAC127-300400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
910 PM CST WED MAR 29 2000

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WINN PARISH IN LOUISIANA

* UNTIL 1000 PM CST

* AT 910 PM CST...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTHWEST OF
  WINNFIELD...MOVING SOUTHEAST AT 35 MPH.

THIS THUNDERSTORM WILL PRODUCE LARGE HAIL AND STRONG DAMAGING WINDS.
DO NOT REMAIN OUTSIDE...THIS IS A DANGEROUS WEATHER SITUATION.

REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE
THUNDERSTORJM WARNING FOR...
  WINN PARISH IN LOUISIANA 
UNTIL 1000 PM CST.

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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 29, 8:00 PM CST, 1 hour 10 minutes earlier.

Area forecast discussion, Mar 29, 8:00 PM CST, 1 hour 10 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
800 PM CST WED MAR 29 2000

WATCH IS OVER. UPDATED ZONES AND REDUCED NUMBER OF GROUPINGS.
UPDATED WINDS BUT DIDN/T TOUCH TEMPS. SOME POSSIBLY SEVERE WORDING
WAS RETAINED ACCORDING TO SPC SLIGHT RISK OUTLOOK...BUT POPS REDUCED.
17

.SHV...NONE.

In the hours before

Local storm report, Mar 29, 5:25 PM CST, 3 hours 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
525 PM CST WED MAR 29 2000

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

0450 PM    15 W ATLANTA              TX   1 INCH HAIL
03/29/00   CASS                           REPORTED BY AMATEUR RADIO
                                          SPOTTERS

0517 PM    WOODLAWN                  TX   1.75 INCH HAIL
03/29/00   HARRISON                       REPORTED BY AMATEUR RADIO
                                          SPOTTERS

Local storm report, Mar 29, 6:45 PM CST, 2 hours 25 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED FOR DATE...
NATIONAL WEATHER SERVICE SHREVEPORT LA
645 PM CST WED MAR 29 2000

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

0540 PM    MIRA                      LA   1 INCH HAIL
03/29/00   CADDO                          REPORTED BY AMATEUR RADIO
                                          SPOTTERS

0553 PM    PLAIN DEALING             LA   .75 INCH HAIL
03/29/00   BOSSIER                        REPORTED BY AMATEUR RADIO
                                          SPOTTERS

0635 PM    SHREVEPORT                LA   .75 INCH HAIL
03/29/00   CADDO                          REPORTED BY AMATEUR RADIO
                                          SPOTTERS

NNNN

Special weather statement, Mar 29, 6:45 PM CST, 2 hours 25 minutes before

TXZ096-097-108>112-124-125-136-137-300200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
645 PM CST WED MAR 29 2000

...TORNADO WATCH CANCELLED FOR PORTIONS OF NORTHWEST TEXAS...

THE THREAT FOR SEVERE THUNDERSTORMS AND TORNADOES HAS ENDED FOR
PORTIONS OF NORTHEAST TEXAS...MAINLY WEST OF A LINE FROM TEXARKANA
TO TYLER. STRONG THUNDERSTORMS HAVE MOVED EAST OUT OF THE AREA...
AND A MORE STABLE AIR MASS IS MOVING INTO THE AREA. THE COUNTIES
CLEARED FROM THE WATCH ARE...

BOWIE...RED RIVER...FRANKLIN...TITUS...MORRIS...CASS...CAMP...
WOOD...UPSHUR...SMITH...AND GREGG.

THE ORIGINAL WATCH REMAINS IN EFFECT ELSEWHERE...UNTIL 8 PM.

Local storm report, Mar 29, 6:46 PM CST, 2 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
645 PM CST TUE MAR 28 2000

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

0540 PM    MIRA                      LA   1 INCH HAIL
03/29/00   CADDO                          REPORTED BY AMATEUR RADIO
                                          SPOTTERS

0553 PM    PLAIN DEALING             LA   .75 INCH HAIL
03/29/00   BOSSIER                        REPORTED BY AMATEUR RADIO
                                          SPOTTERS

0635 PM    SHREVEPORT                LA   .75 INCH HAIL
03/29/00   CADDO                          REPORTED BY AMATEUR RADIO
                                          SPOTTERS

NNNN

Local storm report, Mar 29, 7:40 PM CST, 1 hour 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
740 PM CST WED MAR 29 2000

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

0655 PM    2 N CURTIS                LA   .88 INCH HAIL
03/29/00   BOSSIER                        REPORTED BY AMATEUR RADIO
                                          SPOTTERS

0702 PM    1 W SHREVEPORT RGNL ARP   LA   .75 INCH HAIL
03/29/00   CADDO                          REPORTED BY AMATEUR RADIO
                                          SPOTTERS

Local storm report, Mar 29, 7:42 PM CST, 1 hour 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
742 PM CST WED MAR 29 2000

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

0713 PM    6 S SHREVEPORT DOWNTOWN   LA   .75 INCH HAIL
03/29/00   CADDO                          REPORTED BY OFF-DUTY NWS
                                          EMPLOYEE

0738 PM    RINGGOLD                  LA   .75 INCH HAIL
03/29/00   BIENVILLE                      REPORTED BY AMATEUR RADIO
                                          SPOTTERS

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 29, 6:15 PM CST	Tornado Warning	SHV	Bossier	30 min
Mar 29, 6:21 PM CST	Severe Thunderstorm Warning	SHV	Caddo	54 min
Mar 29, 6:55 PM CST	Severe Thunderstorm Warning	SHV	Webster	50 min
Mar 29, 7:00 PM CST	Severe Thunderstorm Warning	SHV	Bossier	30 min
Mar 29, 7:29 PM CST	Severe Thunderstorm Warning	SHV	Bienville	46 min
Mar 29, 8:28 PM CST	Severe Thunderstorm Warning	SHV	Jackson, Winn	47 min
Mar 29, 10:32 PM CST	Severe Thunderstorm Warning	SHV	LaSalle	43 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; the sounding from the Mesonet's radiosonde archive.