Alert archive / Louisiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 4, NWS Lake Charles, LA

January 17, 2012Rapides Parish, Vernon Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jan 17, 2012, 3:08 PM CST for Rapides Parish, Vernon Parish, Louisiana. It was in force for 37 min. 2 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: Jan 17, 2012, 3:08 PM CST (21:08 UTC)
Expired: Jan 17, 2012, 3:45 PM CST
In force: 37 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon

Counties Rapides Parish, LA, Vernon Parish, LA

What was reported inside it

Time	Report	Where	Remark
Jan 17, 3:22 PM CST	HAIL 0.75	2 Wnw Alexandria, LA
Jan 17, 3:22 PM CST	HAIL 1	Gardner, LA

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, 9.1 hours before the alert went out and 149 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: 1296 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 458 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 278 m²/s²
0-3 km storm-relative helicity: 300 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 8.5

Open this sounding in Storm Lab

The text

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

266 
WUUS54 KLCH 172108
SVRLCH
LAC079-115-172145-
/O.NEW.KLCH.SV.W.0004.120117T2108Z-120117T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
308 PM CST TUE JAN 17 2012

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN RAPIDES PARISH IN CENTRAL LOUISIANA...
  THIS INCLUDES...ALEXANDRIA INTERNATIONAL AIRPORT...PINEVILLE...
  BOYCE...ALEXANDRIA...
  NORTHEASTERN VERNON PARISH IN WEST CENTRAL LOUISIANA...

* UNTIL 345 PM CST

* AT 307 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM...CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...
  AND DAMAGING WINDS IN EXCESS OF 60 MPH...11 MILES SOUTHWEST OF
  BOYCE...MOVING EAST AT 45 MPH.

GOLFBALL SIZE HAIL HAS BEEN REPORTED WITH THIS STORM IN CLIFTON.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GARDNER BY 315 PM CST...
  BOYCE BY 320 PM CST...
  ALEXANDRIA INTERNATIONAL AIRPORT BY 330 PM CST...
  ALEXANDRIA...TIOGA AND TIMBER TRAILS BY 335 PM CST...
  PINEVILLE...LIBUSE...KINGSVILLE AND PARADISE BY 340 PM CST...

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 3119 9224 3125 9295 3135 9296 3136 9295
      3143 9269 3142 9268 3140 9267 3140 9262
      3146 9232 3147 9223
TIME...MOT...LOC 2107Z 266DEG 40KT 3131 9282

$$
TINGLER

3 follow-up statements

817 
WWUS54 KLCH 172121
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
321 PM CST TUE JAN 17 2012

LAC115-172130-
/O.CAN.KLCH.SV.W.0004.000000T0000Z-120117T2145Z/
VERNON LA-
321 PM CST TUE JAN 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN VERNON PARISH IS
CANCELLED...

LAT...LON 3119 9224 3124 9281 3136 9278 3146 9232
      3147 9223
TIME...MOT...LOC 2120Z 272DEG 40KT 3128 9266

$$

LAC079-172145-
/O.CON.KLCH.SV.W.0004.000000T0000Z-120117T2145Z/
RAPIDES LA-
321 PM CST TUE JAN 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CST
FOR NORTHERN RAPIDES PARISH...

AT 315 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO 
GOLF BALL SIZE.  THIS STORM WAS LOCATED NEAR GARDNER...MOVING EAST AT
45 MPH.

THIS STORM HAS PRODUCE GOLF BALL SIZE HAIL IN CLIFTON.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  ALEXANDRIA INTERNATIONAL AIRPORT BY 330 PM CST...
  ALEXANDRIA...7 MILES SOUTH OF TIOGA AND 9 MILES SOUTH OF TIMBER
  TRAILS BY 335 PM CST...
  PINEVILLE...KINGSVILLE AND 7 MILES SOUTH OF PARADISE BY 340 PM
  CST...
  KOLIN...LIBUSE AND 8 MILES SOUTH OF ESLER REGIONAL AIRPORT BY 345
  PM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

CONTINUOUS LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...WHEN THUNDER ROARS...GO INDOORS.

&&

LAT...LON 3119 9224 3124 9281 3136 9278 3146 9232
      3147 9223
TIME...MOT...LOC 2120Z 272DEG 40KT 3128 9266

$$

TINGLER

067 
WWUS54 KLCH 172134
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
334 PM CST TUE JAN 17 2012

LAC079-172145-
/O.CON.KLCH.SV.W.0004.000000T0000Z-120117T2145Z/
RAPIDES LA-
334 PM CST TUE JAN 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CST
FOR CENTRAL RAPIDES PARISH...

AT 331 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR ALEXANDRIA INTERNATIONAL AIRPORT..MOVING EAST
AT 45 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  ALEXANDRIA...PINEVILLE...6 MILES SOUTH OF KINGSVILLE AND 7 MILES
  SOUTH OF TIOGA BY 340 PM CST...
  KOLIN...6 MILES SOUTH OF LIBUSE AND 9 MILES SOUTHWEST OF ESLER
  REGIONAL AIRPORT BY 345 PM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

CONTINUOUS LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...WHEN THUNDER ROARS...GO INDOORS.

&&

LAT...LON 3125 9262 3133 9259 3145 9223 3119 9224
TIME...MOT...LOC 2133Z 272DEG 40KT 3128 9252

$$

TINGLER

096 
WWUS54 KLCH 172144
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
344 PM CST TUE JAN 17 2012

LAC079-172153-
/O.EXP.KLCH.SV.W.0004.000000T0000Z-120117T2145Z/
RAPIDES LA-
344 PM CST TUE JAN 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL RAPIDES PARISH WILL
EXPIRE AT 345 PM CST...

THE STORM THAT PROMPTED THE WARNING HAS WEAKENED, HOWEVER VERY HEAVY 
RAINFALL AND HAIL TO DIME SIZE WILL STILL BE POSSIBLE AS THIS STORM 
PASSES.

LAT...LON 3125 9262 3133 9259 3145 9223 3119 9224
TIME...MOT...LOC 2143Z 272DEG 40KT 3127 9239

$$

TINGLER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 17, 5:32 AM CST	Small Craft Advisory	LCH		27 hr
Jan 17, 9:08 AM CST	Special Weather Statement	LCH	Vernon	7 min
Jan 17, 9:19 AM CST	Special Weather Statement	LCH	Rapides	26 min
Jan 17, 9:23 AM CST	Tornado Warning	LCH	Rapides, Vernon	13 min
Jan 17, 9:57 AM CST	Special Weather Statement	LCH	Vernon	48 min
Jan 17, 10:18 AM CST	Special Weather Statement	LCH	Vernon	42 min
Jan 17, 11:16 AM CST	Special Weather Statement	LCH	Rapides	29 min
Jan 17, 11:24 AM CST	Severe Thunderstorm Warning	LCH	Avoyelles, Rapides	44 min
Jan 17, 2:38 PM CST	Severe Thunderstorm Warning	LCH	Rapides, Vernon	37 min
Jan 17, 3:13 PM CST	Special Weather Statement	LCH	Avoyelles	17 min
Jan 17, 5:04 PM CST	Special Weather Statement	LCH	Evangeline	41 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.