Alert archive / Louisiana / Tornado Warnings in 2000

Tornado Warning 37, NWS Shreveport, LA

April 23, 2000Bossier Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at Apr 23, 2000, 7:21 PM CDT for Bossier Parish, Louisiana. It was in force for 54 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 23, 2000, 7:21 PM CDT (00:21 UTC)
Expired
Apr 23, 2000, 8:15 PM CDT
In force
54 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Bossier Parish, LA

The radar

The Shreveport radar (KSHV), 34 km from the middle of the area, began a volume at 00:23 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

TimeReportWhereRemark
Apr 23, 7:22 PM CDTTornado F1Bossier City, LAAbout 30 homes with roof damage. Several trees blown down and many tree limbs snapped. Fences blown down. This tornado continued from Caddo Parish.

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.

IssuedProductOfficeLasted
Apr 23, 4:00 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 0.4 hours before the alert went out and 26 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, Shreveport, LA at 00:00Z on 2000-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1042 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2000-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 368 square meters per square second.1939587897Sfc1 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
1042 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
1141 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
368 m²/s²
0-3 km storm-relative helicity
558 m²/s²
Significant tornado parameter
2.0
Supercell composite
11.5

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KSHV 240023
TORSHV
LAC015-240115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
721 PM CDT SUN APR 23 2000

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  BOSSIER PARISH IN LOUISIANA

* UNTIL 815 PM CDT

* AT 721 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A POSSIBLE TORNADO NEAR DOWNTOWN SHREVEPORT MOVING EAST NEAR 20 
  MPH. THIS STORM ALSO HAS A HISTORY OF PRODUCING LARGE HAIL. IF YOU
  LIVE IN BOSSIER CITY...TAKE COVER IMMEDIATELY.

DURING A TORNADO...SEEK SHELTER IN AN INTERIOR HALLWAY OR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS. GET UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY
AND ALWAYS STAY AWAY FROM WINDOWS.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
FOR...
  BOSSIER PARISH IN LOUISIANA
UNTIL 815 PM CDT.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 23, 7:00 PM CDTSevere Thunderstorm WarningSHVRed River45 min
Apr 23, 7:06 PM CDTSevere Thunderstorm WarningSHVCaddo39 min
Apr 23, 7:10 PM CDTTornado WarningSHVCaddo60 min
Apr 23, 7:16 PM CDTTornado WarningSHVRed River59 min
Apr 23, 7:17 PM CDTTornado WarningSHVLincoln58 min
Apr 23, 7:25 PM CDTTornado WarningSHVBienville65 min
Apr 23, 7:51 PM CDTTornado WarningSHVNatchitoches54 min
Apr 23, 7:56 PM CDTSevere Thunderstorm WarningSHVDe Soto64 min
Apr 23, 8:22 PM CDTTornado WarningSHVJackson, Lincoln, Ouachita53 min
Apr 23, 8:37 PM CDTTornado WarningSHVGrant, Winn53 min
Apr 23, 8:41 PM CDTTornado WarningSHVUnion19 min
Apr 23, 9:00 PM CDTTornado WarningSHVUnion15 min
Apr 23, 9:12 PM CDTSevere Thunderstorm WarningSHVLaSalle48 min
Apr 23, 9:18 PM CDTSevere Thunderstorm WarningSHVOuachita42 min
Apr 23, 9:20 PM CDTSevere Thunderstorm WarningSHVSabine40 min
Apr 23, 9:24 PM CDTSevere Thunderstorm WarningSHVNatchitoches, Winn36 min
Apr 23, 9:30 PM CDTSevere Thunderstorm WarningSHVCaldwell30 min

Nearby

Tornado Warnings in Louisiana, 2000Every tornado warning in 2000Tornadoes 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.