Alert archive / Louisiana / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 76, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Aug 9, 2012, 11:18 PM CDT for Avoyelles Parish, Rapides Parish, Louisiana. It was in force for 72 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
- Aug 9, 2012, 11:18 PM CDT (04:18 UTC)
- Expired
- Aug 10, 2012, 12:30 AM CDT
- In force
- 72 min
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
Counties Avoyelles Parish, LA, Rapides Parish, LA
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 4.3 hours before the alert went out and 163 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.
- Mixed-layer CAPE
- 2742 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 1064 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.3
The text
As transmitted, in the capitals the NWS used until 2016.
900
WUUS54 KLCH 100418
SVRLCH
LAC009-079-100530-
/O.NEW.KLCH.SV.W.0076.120810T0418Z-120810T0530Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1118 PM CDT THU AUG 9 2012
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
AVOYELLES PARISH IN CENTRAL LOUISIANA...
THIS INCLUDES...SIMMESPORT...MOREAUVILLE...MARKSVILLE...EFFIE...
BORDELONVILLE...
NORTHEASTERN RAPIDES PARISH IN CENTRAL LOUISIANA...
THIS INCLUDES...LENA...ALEXANDRIA INTERNATIONAL AIRPORT...
PINEVILLE...CHENEYVILLE...BOYCE...ALEXANDRIA...
* UNTIL 1230 AM CDT
* AT 1116 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH...FROM 25 MILES
NORTH OF LENA TO 23 MILES NORTH OF BORDELONVILLE...MOVING SOUTH AT
30 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
HOLLOWAY AND DEVILLE BY 1140 PM CDT...
LAKE OPHELIA NATIONAL WILDLIFE REFUGE BY 1145 PM CDT...
ESLER REGIONAL AIRPORT AND BROUILLETTE BY 1150 PM CDT...
EFFIE AND CENTERPOINT BY 1155 PM CDT...
LIBUSE...KOLIN AND BIG BEND BY MIDNIGHT CDT...
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.
THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL OVER NORTHEAST LOUISIANA. SEEK SHELTER INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS.
DAMAGING WINDS MAY OCCUR UP TO 20 MILES AHEAD OF THE RAIN. GO TO A
SAFE PLACE UNTIL THE STORM HAS PASSED...AND STAY AWAY FROM WINDOWS.
&&
PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE AT
337-477-5285 EXTENSION 1.
LAT...LON 3150 9268 3146 9270 3140 9266 3147 9216
3141 9215 3136 9207 3134 9207 3135 9203
3132 9200 3123 9199 3130 9191 3123 9179
3120 9168 3114 9171 3106 9171 3098 9180
3094 9180 3101 9239 3142 9287 3152 9273
TIME...MOT...LOC 0416Z 021DEG 24KT 3179 9271 3178 9231
3150 9216 3141 9185
$$
LANDRENEAU1 follow-up statement
419
WWUS54 KLCH 100449
SVSLCH
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1149 PM CDT THU AUG 9 2012
LAC009-079-100530-
/O.CON.KLCH.SV.W.0076.000000T0000Z-120810T0530Z/
RAPIDES LA-AVOYELLES LA-
1149 PM CDT THU AUG 9 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR AVOYELLES AND EASTERN RAPIDES PARISHES...
AT 1144 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE
LOCATED FROM BALL TO CENTERPOINT TO 11 MILES NORTHEAST OF LAKE
OPHELIA NATIONAL WILDLIFE REFUGE..MOVING SOUTH AT 35 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
RUBY AND ALEXANDRIA BY 1155 PM CDT...
POLAND...LAKE OPHELIA NATIONAL WILDLIFE REFUGE...BROUILLETTE AND
ECHO BY MIDNIGHT CDT...
MARKSVILLE BY 1205 AM CDT...
BIG BEND...WOODWORTH AND LECOMPTE BY 1215 AM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER INSIDE A STURDY BUILDING AND STAY AWAY
FROM WINDOWS.
DAMAGING WINDS MAY OCCUR UP TO 20 MILES AHEAD OF THE RAIN. GO TO A
SAFE PLACE UNTIL THE STORM HAS PASSED...AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 3143 9248 3147 9216 3141 9215 3136 9207
3134 9207 3135 9203 3132 9200 3123 9199
3130 9191 3123 9179 3120 9168 3114 9171
3106 9171 3098 9180 3094 9180 3101 9239
3120 9261
TIME...MOT...LOC 0448Z 017DEG 32KT 3138 9245 3122 9218
3135 9185
$$
LANDRENEAUThe office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 7:46 PM CDT | Special Weather Statement | LCH | St. Mary | 59 min |
| Aug 10, 12:31 AM CDT | Special Weather Statement | LCH | Avoyelles | 59 min |
| Aug 10, 1:34 AM CDT | Severe Thunderstorm Warning | LCH | Rapides, Vernon | 35 min |
| Aug 10, 1:49 AM CDT | Severe Thunderstorm Warning | LCH | Allen, Evangeline, Rapides | 56 min |
| Aug 10, 2:39 AM CDT | Special Weather Statement | LCH | Acadia, Allen, Evangeline | 66 min |
| Aug 10, 5:49 AM CDT | Severe Thunderstorm Warning | LCH | Avoyelles, Rapides | 56 min |
| Aug 10, 6:29 AM CDT | Severe Thunderstorm Warning | LCH | Avoyelles | 37 min |
| Aug 10, 1:42 PM CDT | Special Marine Warning | LCH | 63 min | |
| Aug 10, 2:31 PM CDT | Special Weather Statement | LCH | St. Mary | 59 min |
| Aug 10, 5:18 PM CDT | Special Weather Statement | LCH | Beauregard | 57 min |
| Aug 10, 5:46 PM CDT | Special Weather Statement | LCH | Allen | 59 min |
| Aug 10, 6:43 PM CDT | Special Weather Statement | LCH | Allen, Rapides | 62 min |
| Aug 10, 6:50 PM CDT | Severe Thunderstorm Warning | LCH | Calcasieu | 40 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2012Every 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.