Alert archive / Louisiana / Tornado Warnings in 2003

Tornado Warning 31, NWS Jackson, MS

March 18, 2003Tensas Parish, Louisiana

NWS Jackson, MS issued this tornado warning at Mar 18, 2003, 6:14 PM CST for Tensas Parish, Louisiana. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Mar 18, 2003, 6:14 PM CST (00:14 UTC)
Expired: Mar 18, 2003, 7:15 PM CST
In force: 61 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Tensas Parish, LA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 18, 2:15 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 0.2 hours before the alert went out and 132 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: 209 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 936 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 166 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

295 
WFUS54 KJAN 190014
TORJAN
LAC107-190115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
614 PM CST TUE MAR 18 2003

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

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

* UNTIL 715 PM CST

* AT 614 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 14 MILES SOUTHWEST OF WATERPROOF...OR ABOUT 6 MILES
  NORTHWEST OF FERRIDAY...MOVING NORTHEAST AT 35 MPH.

* THE TORNADO IS EXPECTED TO...
  BE NEAR WATERPROOF AT 625 PM CST
  BE NEAR ST. JOSEPH AT 640 PM CST
  BE NEAR NEWELLTON AT 650 PM CST

IN ADDITION TO THE THREAT OF A TORNADO...DAMAGING HAIL AND STRONG
WINDS CAN BE EXPECTED. GO TO A SAFE PLACE NOW

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

LAT...LON 3177 9151 3190 9155 3214 9128 3199 9111
          3178 9138

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 18, 6:00 PM CST	Severe Thunderstorm Warning	JAN	Franklin	60 min
Mar 18, 6:02 PM CST	Severe Thunderstorm Warning	JAN	Franklin	58 min
Mar 18, 6:09 PM CST	Severe Thunderstorm Warning	JAN	Franklin	51 min
Mar 18, 6:21 PM CST	Tornado Warning	JAN	Franklin	44 min
Mar 18, 6:40 PM CST	Severe Thunderstorm Warning	JAN	Concordia	30 min
Mar 18, 6:46 PM CST	Tornado Warning	JAN	Madison	59 min
Mar 18, 7:28 PM CST	Severe Thunderstorm Warning	JAN	Tensas	42 min
Mar 18, 7:55 PM CST	Severe Thunderstorm Warning	JAN	East Carroll	45 min

Nearby

Tornado Warnings in Louisiana, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.