Alert archive / Louisiana / Tornado Warnings in 2005

Tornado Warning 83, NWS New Orleans, LA

August 18, 2005Saint Charles Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Aug 18, 2005, 3:49 PM CDT for Saint Charles Parish, Louisiana. It was in force for 26 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: Aug 18, 2005, 3:49 PM CDT (20:49 UTC)
Expired: Aug 18, 2005, 4:15 PM CDT
In force: 26 min
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

County Saint Charles Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.8 hours before the alert went out and 68 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: 2358 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 798 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 7 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.

000 
WFUS54 KLIX 182050
TORLIX
LAC089-182115-
/O.NEW.KLIX.TO.W.0083.050818T2049Z-050818T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
349 PM CDT THU AUG 18 2005

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  ST. CHARLES PARISH IN SOUTHEAST LOUISIANA

* UNTIL 415 PM CDT

* AT 347 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR   
  DESTREHAN...MOVING EAST AT 5 MPH.


IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
PENNY SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

LAT...LON 2991 9039 3000 9039 3002 9041 3008 9041
      3005 9038 3005 9027 3004 9029 3003 9027
      2991 9027

$$

24

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 18, 3:27 PM CDT	Severe Thunderstorm Warning	LIX	Saint Charles	33 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.