Alert archive / Louisiana / Tornado Warnings in 2005

Tornado Warning 3, NWS Shreveport, LA

April 6, 2005Bienville Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at Apr 6, 2005, 12:30 AM CDT for Bienville Parish, Louisiana. It was in force for 30 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 6, 2005, 12:30 AM CDT (05:30 UTC)
Expired: Apr 6, 2005, 1:00 AM CDT
In force: 30 min
Issued by: NWS Shreveport, LA
Area: Counties, with a storm outline in the text

County Bienville Parish, LA

The radar

The Shreveport radar (KSHV), 74 km from the middle of the area, began a volume at 05:33 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 nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 5.5 hours before the alert went out and 65 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: 778 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 902 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KSHV 060530
TORSHV
LAC013-060600-
/O.NEW.KSHV.TO.W.0003.050406T0530Z-050406T0600Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1230 AM CDT WED APR 6 2005

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  BIENVILLE PARISH IN NORTHWEST LOUISIANA

* UNTIL 100 AM CDT

* AT 1227 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 8 MILES
  SOUTHWEST OF GIBSLAND...OR ABOUT 12 MILES SOUTHEAST OF MINDEN...
  MOVING NORTHEAST AT 30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  GIBSLAND BY 1240 AM CDT
  ARCADIA BY 1255 AM CDT

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
FOR...
  BIENVILLE PARISH IN NORTHWEST LOUISIANA
UNTIL 100 AM CDT.

LAT...LON 3243 9313 3247 9315 3258 9316 3258 9288
      3247 9288

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 10:38 PM CDT	Severe Thunderstorm Warning	SHV	De Soto	67 min
Apr 5, 10:47 PM CDT	Severe Thunderstorm Warning	SHV	Caddo	58 min
Apr 5, 11:23 PM CDT	Severe Thunderstorm Warning	SHV	Bossier	67 min
Apr 6, 12:09 AM CDT	Severe Thunderstorm Warning	SHV	Bienville	51 min
Apr 6, 1:58 AM CDT	Severe Thunderstorm Warning	SHV	Jackson, Ouachita	47 min
Apr 6, 2:38 AM CDT	Severe Thunderstorm Warning	SHV	Grant	22 min
Apr 6, 2:44 AM CDT	Severe Thunderstorm Warning	SHV	Winn	46 min
Apr 6, 3:12 AM CDT	Severe Thunderstorm Warning	SHV	Grant	63 min
Apr 6, 4:09 AM CDT	Severe Thunderstorm Warning	SHV	Grant	36 min
Apr 6, 4:30 AM CDT	Severe Thunderstorm Warning	SHV	LaSalle	45 min

Nearby

Tornado Warnings in Louisiana, 2005 Every tornado warning in 2005 Tornadoes in 2005

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.