Alert archive / Louisiana / Tornado Warnings in 2004

Tornado Warning 22, NWS Jackson, MS

April 29, 2004Morehouse Parish, Louisiana; Ashley County, Arkansas

NWS Jackson, MS issued this tornado warning at Apr 29, 2004, 3:08 PM CDT for Morehouse Parish, Louisiana; Ashley County, Arkansas. It was in force for 47 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: Apr 29, 2004, 3:08 PM CDT (20:08 UTC)
Expired: Apr 29, 2004, 3:55 PM CDT
In force: 47 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

Counties Ashley County, AR, Morehouse Parish, LA

The radar

The Jackson/Brandon,MS radar (KDGX), 195 km from the middle of the area, began a volume at 20:10 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 29, 1:10 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 8.1 hours before the alert went out and 185 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: 1051 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

973 
WFUS54 KJAN 292008
TORJAN
ARC003-LAC067-292055-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
308 PM CDT THU APR 29 2004

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  ASHLEY COUNTY IN SOUTHEAST ARKANSAS
  MOREHOUSE PARISH IN NORTHEAST LOUISIANA

* UNTIL 355 PM CDT

* AT 303 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A DEVELOPING TORNADO 27 MILES WEST OF WILMOT...OR ABOUT 12 MILES   
  SOUTHEAST OF HUTTIG...MOVING NORTHEAST AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  WILMOT BY 355 PM CDT

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

LAT...LON 3306 9206 3282 9204 3302 9151 3324 9164

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 3:00 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse	45 min
Apr 29, 3:39 PM CDT	Severe Thunderstorm Warning	JAN	West Carroll	46 min
Apr 29, 3:47 PM CDT	Tornado Warning	JAN	West Carroll	43 min
Apr 29, 4:18 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll	47 min
Apr 29, 4:39 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Richland	61 min
Apr 29, 4:56 PM CDT	Tornado Warning	JAN	Franklin	39 min
Apr 29, 5:10 PM CDT	Tornado Warning	JAN	Madison	75 min
Apr 29, 6:02 PM CDT	Severe Thunderstorm Warning	JAN	Tensas	78 min

Nearby

Tornado Warnings in Louisiana, 2004 Tornado Warnings in Arkansas, 2004 Every tornado warning in 2004 Tornadoes in 2004

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; radar from the NEXRAD Level II archive.