Alert archive / Louisiana / Tornado Warnings in 2011

Tornado Warning 2, NWS Lake Charles, LA

March 5, 20114 parishes in Louisiana

NWS Lake Charles, LA issued this tornado warning at Mar 5, 2011, 8:40 AM CST for 4 parishes in Louisiana. It was in force for 50 min. 3 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: Mar 5, 2011, 8:40 AM CST (14:40 UTC)
Expired: Mar 5, 2011, 9:30 AM CST
In force: 50 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon

Counties Acadia Parish, LA, Cameron Parish, LA, Jefferson Davis Parish, LA, Vermilion Parish, LA

The radar

The Lake Charles radar (KLCH), 45 km from the middle of the area, began a volume at 14:44 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
Mar 5, 8:40 AM CST	TORNADO	6 E Hayes, LA	EF0 TORNADO BEGAN NORTHEAST OF HWY 99 AND MARCEAUX RD INTERSECTION AND ENDED EAST OF HWY 382. SEVERAL FARM BUILDINGS WERE DAMAGED ALONG HWY 382 WITH SHEET METAL BLOWN ACROSS THE ROADWAY. PATH LENGTH 2 MILES AND PATH WIDTH 25 YARDS.
Mar 5, 8:51 AM CST	TORNADO 0	6 Nw Lake Arthur, LA	EF0 TORNADO BEGAN SOUTHWEST OF LYONS RD AND MOUTON RD INTERSECTION AND ENDED NORTHWEST OF HWY 26 AND BOBBY RD. SEVERAL POWER POLES WERE KNOCKED DOWN ALONG MOUTON RD AND LYONS RD. A MOBILE HOME LOST PART OF ITS ROOF ON BOBBY RD. PATH LENGTH 3 MILES AND PATH WID
Mar 5, 9:30 AM CST	TSTM WND DMG	1 N Crowley, LA	* 3 INJ * KATC REPORTS MODERATE BUILDING DAMAGE NEAR A WAFFLE HOUSE ALONG HWY 100 AND 13 JUST NORTH OF I-10. ADDITIONAL DAMAGE INCLUDES TWO RUPTURED GAS LINES. KATC ALSO REPORTS 3 MINOR INJURIES ASSOCIATED WITH THE STORM. POSSIBLE TORNADO

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

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 2.7 hours before the alert went out and 44 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: 635 J/kg
Mixed-layer CIN: -138 J/kg
Mixed-layer LCL: 891 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

349 
WFUS54 KLCH 051440
TORLCH
LAC001-023-053-113-051530-
/O.NEW.KLCH.TO.W.0002.110305T1440Z-110305T1530Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
840 AM CST SAT MAR 5 2011

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN ACADIA PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES...MERMENTAU...IOTA...CROWLEY...
  NORTHEASTERN CAMERON PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES KLONDIKE...
  SOUTHEASTERN JEFFERSON DAVIS PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES...LAKE ARTHUR...JENNINGS...
  NORTHWESTERN VERMILION PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES GUEYDAN...

* UNTIL 930 AM CST

* AT 839 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  THORNWELL...MOVING EAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  RICEVILLE...EVANGELINE...MORSE...EGAN...MOWATA...MAXIE AND LYONS
  POINT

PRECAUTIONARY/PREPAREDNESS ACTIONS...

NATIONAL WEATHER SERVICE RADAR INDICATES A TORNADO MAY FORM AT ANY
TIME. TAKE COVER NOW! ABANDON MOBILE HOMES AND VEHICLES. MOVE TO AN
INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR AWAY FROM WINDOWS.

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

&&

PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE AT
337-477-5285 EXTENSION 1.

LAT...LON 3014 9289 3015 9288 3017 9290 3018 9291
      3043 9240 3002 9225 3001 9284
TIME...MOT...LOC 1440Z 252DEG 21KT 3013 9277

$$

23

1 follow-up statement

488 
WWUS54 KLCH 051503
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
903 AM CST SAT MAR 5 2011

LAC001-023-053-113-051530-
/O.CON.KLCH.TO.W.0002.000000T0000Z-110305T1530Z/
CAMERON LA-VERMILION LA-ACADIA LA-JEFFERSON DAVIS LA-
903 AM CST SAT MAR 5 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 AM CST FOR
SOUTHEASTERN JEFFERSON DAVIS...WESTERN ACADIA...NORTHWESTERN
VERMILION AND NORTHEASTERN CAMERON PARISHES...

AT 902 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
TORNADO.  THIS TORNADO WAS LOCATED NEAR JENNINGS..MOVING NORTHEAST AT
20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
GUEYDAN...MERMENTAU...RICEVILLE...MORSE...EVANGELINE...MOWATA...
MAXIE...LYONS POINT...MIDLAND...IOTA...ESTHERWOOD...EGAN AND CROWLEY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN LOUISIANA.

&&

LAT...LON 3014 9289 3015 9288 3017 9290 3018 9291
      3043 9240 3002 9225 3001 9284
TIME...MOT...LOC 1503Z 242DEG 17KT 3018 9267

$$

MM

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 5, 12:27 AM CST	Marine Dense Fog Advisory	LCH		9 hr
Mar 5, 3:46 AM CST	Small Craft Advisory	LCH		26 hr
Mar 5, 7:39 AM CST	Special Marine Warning	LCH		66 min
Mar 5, 8:14 AM CST	Severe Thunderstorm Warning	LCH	Acadia, Calcasieu, Cameron, Jefferson Davis, Vermilion	61 min
Mar 5, 9:11 AM CST	Special Marine Warning	LCH		64 min
Mar 5, 9:32 AM CST	Severe Thunderstorm Warning	LCH	Acadia, Lafayette, Saint Landry, Saint Martin	58 min
Mar 5, 9:52 AM CST	Tornado Warning	LCH	Acadia, Lafayette, Saint Landry, Saint Martin	38 min
Mar 5, 10:17 AM CST	Special Marine Warning	LCH		58 min
Mar 5, 10:28 AM CST	Special Weather Statement	LCH	Saint Martin, Vermilion	62 min
Mar 5, 11:04 AM CST	Special Marine Warning	LCH		86 min
Mar 5, 11:42 AM CST	Severe Thunderstorm Warning	LCH	Saint Martin, St. Mary	63 min
Mar 5, 11:53 AM CST	Tornado Warning	LCH	Saint Martin, St. Mary	52 min
Mar 5, 12:33 PM CST	Special Marine Warning	LCH		27 min

Nearby

Tornado Warnings in Louisiana, 2011 Every tornado warning in 2011 Tornadoes in 2011

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.