Alert archive / Louisiana / Tornado Warnings in 2000

Tornado Warning 33, NWS Shreveport, LA

April 23, 2000De Soto Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at Apr 23, 2000, 6:58 PM CDT for De Soto Parish, Louisiana. It was in force for 32 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, 6:58 PM CDT (23:58 UTC)
Expired: Apr 23, 2000, 7:30 PM CDT
In force: 32 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County De Soto Parish, LA

The radar

The Shreveport radar (KSHV), 45 km from the middle of the area, began a volume at 00:05 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, 7:05 PM CDT	Tornado F3	Evelyn, LA	A high precipitation supercell produced a tornado as part of an outbreak of tornados across the region. Damage consisted of large pine trees snapped and oak trees blown down. Most damage to residences were from fallen trees. A number of outbuildings were da

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, 12.0 hours before the alert went out and 47 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.

561 
WFUS54 KSHV 232358
TORSHV
LAC031-240030-

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

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN DE SOTO PARISH IN LOUISIANA

* UNTIL 730 PM CDT

* AT 655 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 2 MILES NORTH OF MANSFIELD...MOVING SOUTHEAST AT 25 MPH.
  THIS TORNADO WILL AFFECT MANSFIELD BETWEEN 700 PM AND 705 PM AND
  THEN MOVE TOWARD RAMBIN AROUND 730 PM.

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

REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
FOR...
  EASTERN DE SOTO PARISH IN LOUISIANA
UNTIL 730 PM CDT.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 9:08 AM CDT	Severe Thunderstorm Warning	SHV	Sabine	52 min
Apr 23, 9:36 AM CDT	Severe Thunderstorm Warning	SHV	Natchitoches	54 min
Apr 23, 10:00 AM CDT	Severe Thunderstorm Warning	SHV	Grant	60 min
Apr 23, 10:30 AM CDT	Severe Thunderstorm Warning	SHV	LaSalle	30 min
Apr 23, 5:01 PM CDT	Tornado Warning	SHV	Caddo	59 min
Apr 23, 5:24 PM CDT	Tornado Warning	SHV	Bossier	66 min
Apr 23, 5:54 PM CDT	Tornado Warning	SHV	Caddo	66 min
Apr 23, 5:58 PM CDT	Severe Thunderstorm Warning	SHV	Webster	32 min
Apr 23, 6:07 PM CDT	Severe Thunderstorm Warning	SHV	De Soto	53 min
Apr 23, 6:09 PM CDT	Tornado Warning	SHV	Webster	66 min
Apr 23, 6:13 PM CDT	Tornado Warning	SHV	De Soto	47 min
Apr 23, 6:23 PM CDT	Tornado Warning	SHV	Bossier	67 min
Apr 23, 6:26 PM CDT	Severe Thunderstorm Warning	SHV	Claiborne	64 min
Apr 23, 6:36 PM CDT	Tornado Warning	SHV	Bienville	54 min
Apr 23, 6:38 PM CDT	Tornado Warning	SHV	Claiborne	67 min

Nearby

Tornado Warnings in Louisiana, 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.