Alert archive / Louisiana / Tornado Warnings in 2007

Tornado Warning 28, NWS New Orleans, LA

October 17, 2007Washington Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Oct 17, 2007, 5:42 PM CDT for Washington Parish, Louisiana. It was in force for 33 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Oct 17, 2007, 5:42 PM CDT (22:42 UTC)
Expired: Oct 17, 2007, 6:15 PM CDT
In force: 33 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon

County Washington Parish, LA

What was reported inside it

Time	Report	Where	Remark
Oct 17, 5:45 PM CDT	TORNADO	Franklinton, LA	ROOF DAMAGE TO FURNITURE STORE.
Oct 17, 6:00 PM CDT	TORNADO	10 N Franklinton, LA	DAMAGE TO TRAILER.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.7 hours before the alert went out and 83 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: 390 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 699 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 153 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 172242
TORLIX
LAC117-172315-
/O.NEW.KLIX.TO.W.0028.071017T2242Z-071017T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
542 PM CDT WED OCT 17 2007

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  WASHINGTON PARISH IN SOUTHEAST LOUISIANA...
  THIS INCLUDES THE CITY OF FRANKLINTON...

* UNTIL 615 PM CDT

* AT 538 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  FRANKLINTON...MOVING NORTH AT 25 MPH.


THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

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

LAT...LON 3080 9012 3083 9022 3100 9022 3100 8998
      3100 8997
TIME...MOT...LOC 2242Z 193DEG 23KT 3088 9015

$$

32

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 17, 4:52 PM CDT	Tornado Warning	LIX	Livingston, Saint Helena	23 min
Oct 17, 5:08 PM CDT	Tornado Warning	LIX	Saint Tammany	37 min
Oct 17, 5:11 PM CDT	Tornado Warning	LIX	Saint Tammany, Washington	34 min

Nearby

Tornado Warnings in Louisiana, 2007 Every tornado warning in 2007 Tornadoes in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.