Alert archive / Louisiana / Tornado Warnings in 2001

Tornado Warning 1, NWS Jackson, MS

February 16, 2001Tensas Parish, Louisiana

NWS Jackson, MS issued this tornado warning at Feb 16, 2001, 11:14 AM CST for Tensas Parish, Louisiana. It was in force for 31 min. 1 report came from 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, with what was reported inside it.

The facts

Issued: Feb 16, 2001, 11:14 AM CST (17:14 UTC)
Expired: Feb 16, 2001, 11:45 AM CST
In force: 31 min
Issued by: NWS Jackson, MS
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Tensas Parish, LA

What was reported inside it

Time	Report	Where	Remark
Feb 16, 11:15 AM CST	Thunderstorm Wind	Newellton, LA	A few trees and power lines were blown down.

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.

Issued	Product	Office	Lasted
Feb 16, 10:00 AM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 5.2 hours before the alert went out and 115 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: 261 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 649 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 188 m²/s²
0-3 km storm-relative helicity: 205 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KJAN 161714
TORJAN
LAC107-161745-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1114 AM CST FRI FEB 16 2001

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  TENSAS PARISH IN NORTHEAST LOUISIANA

* UNTIL 1145 AM CST

* AT 1114 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO ABOUT 3 MILES NORTH OF ST. JOSEPH...MOVING NORTHEAST AT 60 
  MPH.

A TORNADO MAY FORM AT ANY TIME - TAKE COVER NOW ABANDON MOBILE HOMES
AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS.

56

LAT...LON 3203 9136 3188 9125 3201 9115 3215 9114

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 16, 11:04 AM CST	Severe Thunderstorm Warning	JAN	Tensas	41 min
Feb 16, 11:11 AM CST	Severe Thunderstorm Warning	JAN	Madison	49 min
Feb 16, 11:24 AM CST	Severe Thunderstorm Warning	JAN	Catahoula	21 min

Nearby

Tornado Warnings in Louisiana, 2001 Every tornado warning in 2001 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.