Alert archive / Louisiana / Tornado Warnings in 2007

Tornado Warning 3, NWS Lake Charles, LA

February 12, 2007Allen Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Feb 12, 2007, 11:39 PM CST for Allen Parish, Louisiana. It was in force for 36 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: Feb 12, 2007, 11:39 PM CST (05:39 UTC)
Expired: Feb 13, 2007, 12:15 AM CST
In force: 36 min
Issued by: NWS Lake Charles, LA
Area: Counties, with a storm outline in the text

County Allen Parish, LA

The radar

The Lake Charles radar (KLCH), 50 km from the middle of the area, began a volume at 05:43 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
Feb 12, 10:39 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 5.7 hours before the alert went out and 50 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: 276 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 585 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 258 m²/s²
0-3 km storm-relative helicity: 297 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KLCH 130540
TORLCH
LAC003-130615-
/O.NEW.KLCH.TO.W.0003.070213T0539Z-070213T0615Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1139 PM CST MON FEB 12 2007

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* TORNADO WARNING FOR...
  ALLEN PARISH IN SOUTHWEST LOUISIANA

* UNTIL 1215 AM CST

* AT 1138 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER REEVES...
  MOVING NORTHEAST AT 20 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   LEBLANC BY 1150 PM CST

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

CALL 337-477-5285 TO REPORT SEVERE WEATHER TO THE WEATHER SERVICE.

LAT...LON 3053 9313 3044 9308 3054 9279 3065 9287

$$

25

1 follow-up statement

000 
WWUS54 KLCH 130612
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1210 AM CST TUE FEB 13 2007

LAC003-130620-
/O.EXP.KLCH.TO.W.0003.000000T0000Z-070213T0615Z/
ALLEN LA-
1210 AM CST TUE FEB 13 2007

...THE TORNADO WARNING FOR ALLEN PARISH EXPIRES AT 1215 AM CST...

THE SEVERE THUNDERSTORM THAT PROMPTED THE TORNADO WARNING HAS 
WEAKENED...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.  
HOWEVER...STRONG THUNDERSTORMS CONTINUE TO AFFECT SOUTHERN ALLEN 
PARISH.  FREQUENT LIGHTNING...GUSTY WINDS...AND SMALL HAIL WILL 
CONTINUE TO BE POSSIBLE EARLY THIS MORNING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 AM CST TUESDAY MORNING
FOR SOUTHWESTERN LOUISIANA.

LAT...LON 3053 9313 3044 9308 3054 9279 3065 9287

$$

SHAMBURGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 12, 8:35 PM CST	Tornado Warning	LCH	Beauregard, Calcasieu	25 min
Feb 12, 9:18 PM CST	Severe Thunderstorm Warning	LCH	Calcasieu	57 min
Feb 12, 9:47 PM CST	Flash Flood Warning	LCH	Beauregard, Calcasieu	3 hr
Feb 12, 10:13 PM CST	Severe Thunderstorm Warning	LCH	Calcasieu	62 min
Feb 13, 12:02 AM CST	Tornado Warning	LCH	Iberia, Lafayette, Saint Martin, Vermilion	43 min
Feb 13, 12:19 AM CST	Tornado Warning	LCH	Evangeline	26 min
Feb 13, 12:39 AM CST	Tornado Warning	LCH	Vermilion	36 min
Feb 13, 12:47 AM CST	Severe Thunderstorm Warning	LCH	Evangeline, Saint Landry	58 min
Feb 13, 12:50 AM CST	Tornado Warning	LCH	Iberia	40 min
Feb 13, 1:00 AM CST	Severe Thunderstorm Warning	LCH	Saint Martin	30 min
Feb 13, 1:15 AM CST	Tornado Warning	LCH	Vermilion	30 min
Feb 13, 1:27 AM CST	Severe Thunderstorm Warning	LCH	Acadia	63 min
Feb 13, 1:29 AM CST	Tornado Warning	LCH	Iberia, Lafayette, Saint Martin	31 min
Feb 13, 1:44 AM CST	Severe Thunderstorm Warning	LCH	Evangeline, Saint Landry	61 min
Feb 13, 1:49 AM CST	Special Marine Warning	LCH		56 min
Feb 13, 1:52 AM CST	Tornado Warning	LCH	Saint Martin	38 min
Feb 13, 2:37 AM CST	Special Marine Warning	LCH		53 min
Feb 13, 3:29 AM CST	Tornado Warning	LCH	St. Mary	31 min
Feb 13, 3:37 AM CST	Special Marine Warning	LCH		53 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.