Alert archive / Louisiana / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 21, NWS Lake Charles, LA

March 25, 20094 parishes in Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 25, 2009, 10:11 PM CDT for 4 parishes in Louisiana. It was in force for 49 min. 13 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 25, 2009, 10:11 PM CDT (03:11 UTC)
Expired: Mar 25, 2009, 11:00 PM CDT
In force: 49 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon

Counties Allen Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Jefferson Davis Parish, LA

The radar

The Lake Charles radar (KLCH), 51 km from the middle of the area, began a volume at 03:14 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 25, 10:12 PM CDT	TSTM WND DMG	4 Wsw Ragley, LA	NWS STORM SURVEY FOUND MICROBURST WIND DAMAGE ALONG HIGHWAY 12 WEST OF THE KERNAN COMMUNITY. NUMEROUS TREES WERE BLOWN DOWN FROM NW TO SE.
Mar 25, 10:14 PM CDT	TSTM WND DMG	7 N Sulphur, LA	NWS STORM SURVEY FOUND MICROBURST WIND DAMAGE IN THE BUHLER COMMUNITY ALONG HIGHWAY 27 AND BANKENS RD. NUMEROUS TREES AND POWER LINES WERE BLOWN DOWN AND A RADIO TOWER AT A GAS PLANT WAS TOPPLED. SEVERAL MOBILE HOMES HAD MINOR DAMAGE TO SKIRTING AND SIDING. AL
Mar 25, 10:20 PM CDT	TSTM WND DMG	Ragley, LA	NUMEROUS TREES DOWN IN RAGLEY REPORTED BY BEAUREGARD PARISH SHERIFF OFFICE.
Mar 25, 10:20 PM CDT	TSTM WND DMG	Sugartown, LA	CARPORT BLOWN INTO ROADWAY REPORTED BY BEAUREGARD PARISH SHERIFF OFFICE.
Mar 25, 10:40 PM CDT	TSTM WND DMG	Moss Bluff, LA	TREE BLOWN DOWN ALONG HIGHWAY 171 1/2 MILE NORTH OF GILLIS.
Mar 25, 10:45 PM CDT	HAIL 1	Sulphur, LA	QUARTER SIZE HAIL IN SULPHUR REPORTED BY KPLC-TV.
Mar 25, 10:46 PM CDT	TSTM WND DMG	Ragley, LA	WIDESPREAD POWER OUTAGES THROUGHOUT BEAUREGARD PARISH REPORTED BY KPLC-TV.
Mar 25, 10:47 PM CDT	TSTM WND DMG	Oberlin, LA	TREES WERE BLOWN DOWN WITH MINOR ROOF DAMAGE TO A FEW BUILDINGS IN OBERLIN.
Mar 25, 10:50 PM CDT	HAIL 1	Carlyss, LA	QUARTER SIZE HAIL REPORTED IN CARLYSS BY KPLC-TV.
Mar 25, 10:55 PM CDT	TSTM WND DMG	4 Sw Lake Charles, LA	A FEW TREES WERE BLOWN DOWN IN THE SOUTHERN SECTIONS OF LAKE CHARLES.
Mar 25, 10:56 PM CDT	TSTM WND GST 60.4	5 S Lake Charles, LA	60.4 MPH WIND GUST MEASURED AT LAKE CHARLES AG CENTER.
Mar 25, 10:57 PM CDT	TSTM WND DMG	9 Ese Oberlin, LA	NWS STORM SURVEY FOUND MICROBURST WIND DAMAGE IN THE HAMPTON COMMUNITY ALONG COTTONGIN CASTOR ROAD AT HIGHWAY 104. NUMEROUS LARGE TREES WERE BLOWN DOWN WITH ONE FALLING ON A HOUSE. A MOBILE HOME HAD ITS ROOF BLOWN OFF. ALL DAMAGE WAS IN A WNW TO ESE DIRECTION
Mar 25, 11:05 PM CDT	HAIL 1	Carlyss, LA	QUARTER SIZE HAIL REPORTED IN CARLYSS BY KPLC-TV.

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
Mar 25, 8:54 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 3.2 hours before the alert went out and 51 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: 3131 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 474 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 130 m²/s²
0-3 km storm-relative helicity: 153 m²/s²
Significant tornado parameter: 2.5
Supercell composite: 9.3

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KLCH 260311
SVRLCH
LAC003-011-019-053-260400-
/O.NEW.KLCH.SV.W.0021.090326T0311Z-090326T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1011 PM CDT WED MAR 25 2009

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ALLEN PARISH IN SOUTHWEST LOUISIANA...
   THIS INCLUDES THE CITIES OF...OBERLIN...OAKDALE...KINDER...
  EASTERN BEAUREGARD PARISH IN SOUTHWEST LOUISIANA...
   THIS INCLUDES THE CITIES OF...SUGARTOWN...RAGLEY...DRY CREEK...
  CALCASIEU PARISH IN SOUTHWEST LOUISIANA...
   THIS INCLUDES THE CITIES OF...VINTON...SULPHUR...LAKE CHARLES...
  NORTHWESTERN JEFFERSON DAVIS PARISH IN SOUTHWEST LOUISIANA...
   THIS INCLUDES THE CITIES OF...WELSH...FENTON...ELTON...

* UNTIL 1100 PM CDT

* AT 1005 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM SUGARTOWN TO VINTON...AND
  MOVING EAST AT 40 MPH.

* THESE SEVERE THUNDERSTORMS WILL BE NEAR...
  RAGLEY BY 1015 PM CDT...
  SULPHUR AND CARLYSS BY 1025 PM CDT...
  ELIZABETH...REEVES AND MITTIE BY 1030 PM CDT...
  LAKE CHARLES AND MOSS BLUFF BY 1035 PM CDT...
  IOWA BY 1050 PM CDT...
  OAKDALE AND OBERLIN BY 1055 PM CDT...
  WELSH AND FENTON BY 1100 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 300 AM CDT THURSDAY 
MORNING FOR SOUTHWESTERN LOUISIANA.

&&

LAT...LON 3087 9259 3057 9259 3055 9262 3050 9263
      3042 9262 3006 9300 3008 9369 3025 9368
      3087 9318
TIME...MOT...LOC 0308Z 276DEG 37KT 3086 9308 3019 9360

$$

SHAMBURGER

1 follow-up statement

000 
WWUS54 KLCH 260339
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1039 PM CDT WED MAR 25 2009

LAC003-011-019-053-260400-
/O.CON.KLCH.SV.W.0021.000000T0000Z-090326T0400Z/
ALLEN LA-BEAUREGARD LA-JEFFERSON DAVIS LA-CALCASIEU LA-
1039 PM CDT WED MAR 25 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR CALCASIEU...NORTHWESTERN JEFFERSON DAVIS...EASTERN BEAUREGARD AND
ALLEN PARISHES...

AT 1036 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM OAKDALE TO 8 MILES SOUTHWEST
OF CARLYSS...MOVING EAST AT 45 MPH.

THESE SEVERE THUNDERSTORMS WILL BE NEAR...
  OBERLIN BY 1045 PM CDT...
  LEBLEU SETTLEMENT...LAKE CHARLES AND KINDER BY 1050 PM CDT...
  IOWA AND FENTON BY 1055 PM CDT...
  ELTON...LACASSINE...BELL CITY AND WELSH BY 1100 PM CDT...

THESE STORMS HAVE PRODUCED POWER OUTAGES IN MOSS BLUFF.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 300 AM CDT
THURSDAY MORNING FOR SOUTHWESTERN LOUISIANA.

&&

LAT...LON 3025 9368 3087 9304 3087 9259 3057 9259
      3055 9262 3050 9263 3042 9262 3006 9300
      3008 9369 3020 9368
TIME...MOT...LOC 0337Z 276DEG 37KT 3083 9267 3010 9346

$$

SHAMBURGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 25, 8:52 PM CDT	Severe Thunderstorm Warning	LCH	Beauregard, Vernon	38 min
Mar 25, 9:27 PM CDT	Severe Thunderstorm Warning	LCH	Beauregard, Calcasieu	48 min
Mar 25, 9:35 PM CDT	Tornado Warning	LCH	Beauregard, Calcasieu	25 min
Mar 25, 10:29 PM CDT	Tornado Warning	LCH	Calcasieu, Jefferson Davis	31 min
Mar 25, 10:36 PM CDT	Special Marine Warning	LCH		24 min
Mar 25, 10:55 PM CDT	Special Marine Warning	LCH		35 min
Mar 25, 10:57 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Calcasieu, Cameron, Jefferson Davis, Vermilion	48 min
Mar 25, 11:02 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Allen, Avoyelles, Evangeline, Rapides, Saint Landry	43 min
Mar 25, 11:30 PM CDT	Special Marine Warning	LCH		45 min
Mar 25, 11:43 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Cameron, Iberia, Jefferson Davis, Lafayette, Saint Martin and 1 more	47 min
Mar 25, 11:45 PM CDT	Severe Thunderstorm Warning	LCH	Avoyelles, Saint Landry	30 min
Mar 26, 12:31 AM CDT	Severe Thunderstorm Warning	LCH	Cameron, Iberia, Lafayette, Saint Martin, St. Mary, Vermilion	59 min
Mar 26, 12:38 AM CDT	Special Marine Warning	LCH		67 min
Mar 26, 1:28 AM CDT	Severe Thunderstorm Warning	LCH	Iberia, Saint Martin, St. Mary, Vermilion	62 min
Mar 26, 1:46 AM CDT	Special Marine Warning	LCH		44 min
Mar 26, 9:48 AM CDT	River Flood Warning	LCH	Beauregard, Calcasieu	13 days
Mar 26, 4:25 PM CDT	Tornado Warning	LCH	Acadia, Allen, Evangeline, Jefferson Davis, Saint Landry	35 min
Mar 26, 4:59 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Evangeline, Saint Landry	61 min
Mar 26, 5:25 PM CDT	Special Marine Warning	LCH		65 min
Mar 26, 5:29 PM CDT	Severe Thunderstorm Warning	LCH	Allen, Evangeline, Rapides, Vernon	61 min
Mar 26, 5:42 PM CDT	Severe Thunderstorm Warning	LCH	Vernon	63 min
Mar 26, 5:48 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Allen, Evangeline, Saint Landry	42 min
Mar 26, 5:55 PM CDT	Severe Thunderstorm Warning	LCH	Avoyelles, Saint Landry	50 min
Mar 26, 6:04 PM CDT	Severe Thunderstorm Warning	LCH	Vernon	44 min
Mar 26, 6:12 PM CDT	Special Marine Warning	LCH		63 min
Mar 26, 6:26 PM CDT	Severe Thunderstorm Warning	LCH	Vernon	64 min
Mar 26, 6:57 PM CDT	Severe Thunderstorm Warning	LCH	Calcasieu	63 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2009 Every severe thunderstorm warning in 2009

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.