Alert archive / Louisiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 1, NWS Lake Charles, LA

January 9, 2012Beauregard Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jan 9, 2012, 4:19 AM CST for Beauregard Parish, Louisiana. It was in force for 41 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: Jan 9, 2012, 4:19 AM CST (10:19 UTC)
Expired: Jan 9, 2012, 5:00 AM CST
In force: 41 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon

County Beauregard Parish, LA

The radar

The Lake Charles radar (KLCH), 57 km from the middle of the area, began a volume at 10:20 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 nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 10.3 hours before the alert went out and 59 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: 213 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 878 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

467 
WUUS54 KLCH 091019
SVRLCH
LAC011-091100-
/O.NEW.KLCH.SV.W.0001.120109T1019Z-120109T1100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
419 AM CST MON JAN 9 2012

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN BEAUREGARD PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES...SINGER...MERRYVILLE...FIELDS...

* UNTIL 500 AM CST

* AT 419 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH...9 MILES SOUTHWEST OF FIELDS...
  MOVING NORTHEAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  BANCROFT...BIVENS AND JUNCTION

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND HEAVY RAIN. STAY INDOORS...
AWAY FROM WINDOWS.

&&

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

LAT...LON 3061 9320 3049 9345 3049 9349 3046 9349
      3040 9356 3040 9374 3044 9370 3048 9372
      3052 9371 3053 9374 3060 9370 3059 9368
      3061 9369 3086 9352
TIME...MOT...LOC 1019Z 226DEG 23KT 3046 9367

$$

23

1 follow-up statement

159 
WWUS54 KLCH 091047
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
447 AM CST MON JAN 9 2012

LAC011-091100-
/O.CON.KLCH.SV.W.0001.000000T0000Z-120109T1100Z/
BEAUREGARD LA-
447 AM CST MON JAN 9 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 AM CST
FOR WESTERN BEAUREGARD PARISH...

AT 443 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
SOUTHEAST OF BIVENS..MOVING NORTHEAST AT 25 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SINGER

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND HEAVY RAIN. STAY INDOORS...
AWAY FROM WINDOWS.

&&

LAT...LON 3046 9353 3059 9367 3078 9345 3064 9329
      3049 9348 3049 9349 3048 9349
TIME...MOT...LOC 1047Z 226DEG 23KT 3058 9352

$$

MM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 8, 8:54 PM CST	Marine Dense Fog Advisory	LCH		10 hr
Jan 8, 9:02 PM CST	Dense Fog Advisory	LCH	Cameron, Lafayette, Saint Martin	10 hr
Jan 9, 5:17 AM CST	Tornado Warning	LCH	Beauregard	28 min
Jan 9, 5:49 AM CST	Tornado Warning	LCH	Beauregard	26 min
Jan 9, 6:18 AM CST	Tornado Warning	LCH	Beauregard, Vernon	42 min
Jan 9, 12:08 PM CST	Areal Flood Advisory	LCH	Vernon	4 hr
Jan 9, 2:04 PM CST	Special Marine Warning	LCH		56 min
Jan 9, 3:02 PM CST	Special Marine Warning	LCH		58 min
Jan 9, 3:22 PM CST	Areal Flood Advisory	LCH	Calcasieu	4 hr
Jan 9, 5:02 PM CST	Special Marine Warning	LCH		88 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2012 Every severe thunderstorm warning in 2012

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.