Alert archive / Louisiana / Tornado Warnings in 2007

Tornado Warning 13, NWS Lake Charles, LA

September 13, 2007Vermilion Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Sep 13, 2007, 4:15 AM CDT for Vermilion Parish, Louisiana. It was in force for 30 min. 1 report 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: Sep 13, 2007, 4:15 AM CDT (09:15 UTC)
Expired: Sep 13, 2007, 4:45 AM CDT
In force: 30 min
Issued by: NWS Lake Charles, LA
Area: Counties, with a storm outline in the text

County Vermilion Parish, LA

The radar

The Lake Charles radar (KLCH), 76 km from the middle of the area, began a volume at 09:19 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.

What was reported inside it

Time	Report	Where	Remark
Sep 13, 4:20 AM CDT	TORNADO	5 E Gueydan, LA	TORNADO BLEW ROOF OFF HOME AND DOWNED TREES AND POWER LINES 1 MILE NORTHWEST OF MULVEY. TIME APPROXIMATE AND BASED ON RADAR.

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Sep 13, 3:04 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 9.3 hours before the alert went out and 74 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: 134 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 755 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 106 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 KLCH 130915
TORLCH
LAC113-130945-
/O.NEW.KLCH.TO.W.0013.070913T0915Z-070913T0945Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
415 AM CDT THU SEP 13 2007

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL VERMILION PARISH IN SOUTHWEST LOUISIANA...

* UNTIL 445 AM CDT

* AT 408 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER CENTRAL
  VERMILION PARISH...OR ABOUT 8 MILES SOUTHEAST OF GUEYDAN...MOVING
  NORTH AT 25 MPH.

* THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
  INDICATED PARISH.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT THURSDAY MORNING
FOR SOUTHWESTERN LOUISIANA.

LAT...LON 2996 9250 2993 9237 3009 9234 3005 9241
      3009 9253

$$

06

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 12, 10:44 PM CDT	River Flood Warning	LCH	Calcasieu	22 hr
Sep 12, 10:44 PM CDT	River Flood Warning	LCH	Calcasieu	22 hr
Sep 12, 10:56 PM CDT	Inland Tropical Storm Warning	LCH	Allen, Beauregard, Rapides, Vernon	14 hr
Sep 13, 12:59 AM CDT	Inland Hurricane Warning	LCH		5 hr
Sep 13, 2:12 AM CDT	Flash Flood Warning	LCH	Calcasieu, Cameron, Jefferson Davis, Vermilion	4 hr
Sep 13, 2:16 AM CDT	Flash Flood Warning	LCH	Acadia, Jefferson Davis	4 hr
Sep 13, 4:56 AM CDT	Flash Flood Warning	LCH	Acadia, Lafayette, Saint Landry, Vermilion	4 hr
Sep 13, 6:04 AM CDT	Flash Flood Warning	LCH	Beauregard	4 hr
Sep 13, 6:13 AM CDT	Flash Flood Warning	LCH	Calcasieu, Jefferson Davis	4 hr
Sep 13, 9:29 AM CDT	River Flood Warning	LCH	Rapides	4 days
Sep 13, 9:29 AM CDT	River Flood Warning	LCH	Calcasieu	11 hr
Sep 13, 9:29 AM CDT	River Flood Warning	LCH	Beauregard, Calcasieu	6 days
Sep 13, 9:59 AM CDT	Flash Flood Warning	LCH	Beauregard, Vernon	3 hr
Sep 13, 12:49 PM CDT	Lake Wind Advisory	LCH	Allen, Avoyelles, Beauregard, Evangeline, Lafayette, Rapides and 3 more	3 hr
Sep 13, 1:41 PM CDT	Coastal Flood Warning	LCH	Saint Martin	2 hr

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; radar from the NEXRAD Level II archive.