Alert archive / Texas / Tornado Warnings in 2000

Tornado Warning 26, NWS Shreveport, LA

April 23, 2000Harrison County, Texas

NWS Shreveport, LA issued this tornado warning at Apr 23, 2000, 5:26 PM CDT for Harrison County, Texas. It was in force for 19 min. 2 reports 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, 5:26 PM CDT (22:26 UTC)
Expired: Apr 23, 2000, 5:45 PM CDT
In force: 19 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County Harrison County, TX

The radar

The Shreveport radar (KSHV), 51 km from the middle of the area, began a volume at 22:30 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
Apr 23, 5:30 PM CDT	Tornado F1	Scottsville, TX	Wooded region with no homes or structures in the path of this tornado. Numerous pine and oak trees snapped and broken. This tornado is one of several tornadoes spawned from a high precipitation supercell that moved across Harrison county, TX into Louisiana.
Apr 23, 5:30 PM CDT	Hail 4.5	Waskom, TX

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 nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 10.4 hours before the alert went out and 59 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 721 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 271 m²/s²
0-3 km storm-relative helicity: 416 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

331 
WFUS54 KSHV 232228
TORSHV
TXC203-232245-

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

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN HARRISON COUNTY IN TEXAS

* UNTIL 545 PM CDT

* AT 526 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES WEST OF 
  WASKOM...OR ABOUT 11 MILES EAST SOUTHEAST OF MARSHALL...MOVING
  EAST AT 35 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   WASKOM AT 538 PM CDT

THIS THUNDERSTORM CAN PRODUCE A TORNADO THAT IS OBSCURED BY RAIN AND
DIFFICULT TO SEE.

IF YOU ARE IN A MOBILE HOME...ABANDON IT FOR A STURDY BUILDING OR GET
IN A DITCH OR CULVERT. MOBILE HOMES PROVIDE NO PROTECTION IN A
TORNADO.

REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
FOR...
  SOUTHEASTERN HARRISON COUNTY IN TEXAS
UNTIL 545 PM CDT.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 8:38 AM CDT	Severe Thunderstorm Warning	SHV	San Augustine	37 min
Apr 23, 8:55 AM CDT	Severe Thunderstorm Warning	SHV	Sabine, Shelby	50 min
Apr 23, 3:18 PM CDT	Severe Thunderstorm Warning	SHV	Titus	57 min
Apr 23, 3:31 PM CDT	Tornado Warning	SHV	Titus	59 min
Apr 23, 3:48 PM CDT	Severe Thunderstorm Warning	SHV	Camp	27 min
Apr 23, 3:50 PM CDT	Tornado Warning	SHV	Morris	40 min
Apr 23, 4:00 PM CDT	Severe Thunderstorm Warning	SHV	Upshur	60 min
Apr 23, 4:05 PM CDT	Tornado Warning	SHV	Cass	55 min
Apr 23, 4:16 PM CDT	Severe Thunderstorm Warning	SHV	Gregg	44 min
Apr 23, 4:20 PM CDT	Tornado Warning	SHV	Gregg	40 min
Apr 23, 4:33 PM CDT	Tornado Warning	SHV	Harrison	57 min
Apr 23, 4:55 PM CDT	Tornado Warning	SHV	Cass	35 min
Apr 23, 5:17 PM CDT	Tornado Warning	SHV	Panola	58 min
Apr 23, 6:21 PM CDT	Severe Thunderstorm Warning	SHV	Marion	24 min

Nearby

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