Alert archive / Louisiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 122, NWS Lake Charles, LA

August 18, 20118 parishes in Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Aug 18, 2011, 9:16 PM CDT for 8 parishes in Louisiana. It was in force for 59 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 18, 2011, 9:16 PM CDT (02:16 UTC)
Expired: Aug 18, 2011, 10:15 PM CDT
In force: 59 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon

Counties Acadia Parish, LA, Cameron Parish, LA, Iberia Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Vermilion Parish, LA

The radar

The Lake Charles radar (KLCH), 100 km from the middle of the area, began a volume at 02:19 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 2.3 hours before the alert went out and 98 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: 3729 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 1392 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 143 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 12.3

Open this sounding in Storm Lab

The text

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

830 
WUUS54 KLCH 190216
SVRLCH
LAC001-023-045-053-055-099-101-113-190315-
/O.NEW.KLCH.SV.W.0122.110819T0216Z-110819T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
916 PM CDT THU AUG 18 2011

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN IBERIA PARISH IN SOUTH CENTRAL LOUISIANA...
  THIS INCLUDES...NEW IBERIA...AVERY ISLAND...
  SOUTHERN LAFAYETTE PARISH IN SOUTH CENTRAL LOUISIANA...
  WEST CENTRAL ST. MARTIN PARISH IN SOUTH CENTRAL LOUISIANA...
  THIS INCLUDES ST. MARTINVILLE...
  WEST CENTRAL ST. MARY PARISH IN SOUTH CENTRAL LOUISIANA...
  SOUTHERN ACADIA PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES...MERMENTAU...CROWLEY...HAYES...
  NORTHEASTERN CAMERON PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES...LACASSINE NATIONAL WILDLIFE REFUGE...KLONDIKE...
  SOUTHERN JEFFERSON DAVIS PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES...WELSH...LAKE ARTHUR...JENNINGS...
  VERMILION PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES...KAPLAN...GUEYDAN...FORKED ISLAND...ABBEVILLE...

* UNTIL 1015 PM CDT

* AT 916 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING DAMAGING WINDS
  IN EXCESS OF 60 MPH...FROM 6 MILES SOUTHEAST OF HAYES TO 8 MILES
  SOUTHEAST OF NEW IBERIA...MOVING SOUTH AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  LYDIA...ABBEVILLE...GUEYDAN AND KAPLAN BY 925 PM CDT...
  KLONDIKE...WRIGHT...DELCAMBRE AND ERATH BY 930 PM CDT...
  LOWRY AND AVERY ISLAND BY 935 PM 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.

&&

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

LAT...LON 2974 9215 2973 9219 2971 9217 2970 9217
      2985 9308 3009 9297 3009 9289 3016 9293
      3026 9289 3010 9166 2973 9169 2970 9185
      2970 9186 2976 9189 2982 9184 2982 9188
      2982 9197 2972 9213 2969 9209
TIME...MOT...LOC 0216Z 002DEG 17KT 3005 9284 2990 9172

$$

21

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lake Charles, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 18, 8:03 PM CDT, 1 hour 13 minutes earlier.

Area forecast discussion, Aug 18, 8:03 PM CDT, 1 hour 13 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
803 PM CDT THU AUG 18 2011

.UPDATE...
SEVERAL CLUSTERS OF STRONG THUNDERSTORMS HAVE DEVELOPED ALONG AN
OUTFLOW BOUNDARY DROPPING SOUTH ACRS THE AREA. ADJUSTED POPS BASED
ON LATEST RADAR TRENDS WITH HIGHEST POPS OVER ERN ZONES. ANY
STORMS THAT DEVELOP WILL BE CAPABLE OF PRODUCING STRONG GUSTY
WINDS AND FREQUENT LIGHTNING. ACTIVITY IS EXPECTED TO DIMINISH
LATE THIS EVENING.  UPDATED ZONES ARE OUT.  24

&&

.PREV DISCUSSION... /ISSUED 309 PM CDT THU AUG 18 2011/

DISCUSSION...SEVERE THUNDERSTORM NOW JUST SOUTH OF JACKSON.
CONVECTION HAS DEVELOPED/INTENSIFIED FROM OUTFLOW LAID DOWN BY
EARLIER MCS THAT ADVANCED ACROSS ARKANSAS INTO NORTH MISSISSIPPI.
CONVECTION OF A LESSER INTENSITY HAS NOW BEGUN TO DEVELOP ALONG
SAME OUTFLOW EXTENDING ACROSS NORTH LOUISIANA INTO EAST TEXAS WITH
BOUNDARY ADVANCING SOUTH AT AROUND 25 MPH. COULD SEE A FEW STRONG
THUNDERSTORMS DEVELOP AS BOUNDARY MOVES INTO THE AREA LATER THIS
AFTERNOON...ESPECIALLY AS INITIAL OUTFLOW OR OTHER CONVECTIVE
BOUNDARIES COLLIDE WITH DEVELOPING SEA-BREEZE...ALBEIT WEAK.

OTHERWISE SEEING SOME EXTREMELY HOT TEMPERATURES ACROSS THE AREA.
DEWPOINTS HAVE MANAGED TO MIX DOWN INTO THE MID 60S NORTH...THE
UPPER 60S TO 70 NORTH. THUS FLIRTING WITH HEAT ADVISORY CRITERIA
BUT AT THIS TIME FOR THE MOST PART FALLING SHORT. SIMILAR
TEMP/DEWPOINT PATTERN EXPECTED TOMORROW.

ONGOING WEATHER PATTERN EXPECTED TO CONTINUE. AREA WILL REMAIN
UNDER THE INFLUENCE OF EXPANSIVE SOUTH PLAINS HIGH. TEMPERATURES
WELL ABOVE THE NORM WILL BE MAINTAINED WHILE RAIN CHANCES SHOULD
STAY LIMITED. COULD SEE A WETTER PATTERN DEVELOP TOWARD THE MID
PART OF THE NEW WEEK AS GLOBAL MODELS SHOWING SOME RETROGRADING OF
HIGH AS A DEEP LOW DEVELOPS OVER THE UPPER MIDWEST.

CONTINUE TO WATCH WESTWARD MOVING DISTURBANCE OVER THE CARIBBEAN
WITH NHC CARRYING AN 80 PERCENT CHANCE OF DEVELOPMENT.

MARINE...HIGH PRESSURE PREVAILING OVER THE NWRN GULF WILL KEEP
THE AREA IN A MOSTLY LIGHT AND SRLY FLOW REGIME THROUGH THE
PERIOD...AND NO FLAGS ARE ANTICIPATED THIS FORECAST.

&&

.PRELIMINARY POINT TEMPS/POPS...
KLCH  78 100  78  96 /  30  20  20  20
KBPT  79 100  79  97 /  20  20  20  20
KAEX  75 103  75 103 /  30  20  20  20
KLFT  76 100  76  96 /  40  20  20  20

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...NONE.
TX...NONE.
GM...NONE.

&&

Hazardous weather outlook, Aug 18, 4:48 AM CDT, 16 hours 28 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAKE CHARLES LA
448 AM CDT THU AUG 18 2011

GMZ430-432-435-450-452-455-470-472-475-LAZ027>033-041>045-051>055-
TXZ180-201-215-216-259>262-191000-
SABINE LAKE-CALCASIEU LAKE-VERMILION BAY-
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM-
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM-
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY
LA OUT 20 NM-
WATERS FROM CAMERON LA TO HIGH ISLAND TX FROM 20 TO 60 NM-
WATERS FROM  INTRACOASTAL CITY TO CAMERON LA FROM 20 TO 60 NM-
WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY LA FROM
20 TO 60 NM-VERNON-RAPIDES-AVOYELLES-BEAUREGARD-ALLEN-EVANGELINE-
ST. LANDRY-CALCASIEU-JEFFERSON DAVIS-ACADIA-LAFAYETTE-
UPPER ST. MARTIN-CAMERON-VERMILION-IBERIA-ST. MARY-
LOWER ST. MARTIN-TYLER-HARDIN-JEFFERSON-ORANGE-NORTHERN JASPER-
NORTHERN NEWTON-SOUTHERN JASPER-SOUTHERN NEWTON-
448 AM CDT THU AUG 18 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NORTHWEST
GULF OF MEXICO...LA...CENTRAL LOUISIANA...SOUTH CENTRAL
LOUISIANA...SOUTHWEST LOUISIANA...WEST CENTRAL LOUISIANA...
SOUTHEAST TEXAS AND TX.

.DAY ONE...TODAY AND TONIGHT
WITH HIGH TEMPERATURES IN THE UPPER 90S TO LOWER 100S AND AFTERNOON
HUMIDITY VALUES OF 30 TO 40 PERCENT...HEAT INDEX VALUES ACROSS
MUCH OF THE AREA WILL RANGE FROM 102 TO 107 DEGREES THIS
AFTERNOON. THE MOST DANGEROUS READINGS WILL BE BETWEEN 2 PM AND 5
PM...AROUND THE TIME OF HIGH TEMPERATURES. PRECAUTIONS SHOULD BE
MADE TO DELAY ANY STRENUOUS OUTDOOR ACTIVITIES TO BEFORE OF AFTER
THESE HOURS. IF YOU HAVE TO WORK OUTDOORS THIS AFTERNOON...DRINK
PLENTY OF NON-ALCOHOLIC LIQUIDS AND WEAR LIGHT-COLORED CLOTHING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
HOT DAYS WILL CONTINUE THROUGH THE WEEK WITH HEAT INDICES WELL
OVER 100 DEGREES ACROSS MANY LOCATIONS AWAY FROM THE COAST. RAIN
CHANCES WILL BE SLIM AT BEST...WITH SHOWER AND STORM DEVELOPMENT
EXPECTED MAINLY FROM MID-DAY THROUGH EARLY EVENING. SEVERE STORMS
ARE NOT EXPECTED.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED.

25

In the hours before

Special weather statement, Aug 18, 7:59 PM CDT, 1 hour 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
759 PM CDT THU AUG 18 2011

LAZ030-031-041-042-TXZ180-201-259>262-190200-
HARDIN TX-NORTHERN JASPER TX-NORTHERN NEWTON TX-TYLER TX-
BEAUREGARD LA-ALLEN LA-CALCASIEU LA-JEFFERSON DAVIS LA-
SOUTHERN JASPER TX-SOUTHERN NEWTON TX-
759 PM CDT THU AUG 18 2011

...SIGNIFICANT WEATHER ADVISORY FOR HARDIN...JASPER...NEWTON AND
TYLER COUNTIES...SIGNIFICANT WEATHER ADVISORY FOR BEAUREGARD...
ALLEN...CALCASIEU AND JEFFERSON DAVIS PARISHES UNTIL 900 PM CDT...

AT 756 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SQUALL LINE OF STRONG WINDS...THE LEADING EDGE EXTENDING FROM 7
MILES NORTH OF CHESTER TO 7 MILES NORTH OF IOWA...MOVING SOUTHWEST
AT 20 MPH.

* THE SQUALL LINE OF STRONG WINDS WILL BE NEAR...
  ORETTA BY 805 PM...
  TOWN BLUFF...MAGNOLIA SPRINGS AND COLMESNEIL BY 810 PM...
  BANCROFT...TROUT CREEK...GILLIS AND FIELDS BY 815 PM...
  DE QUINCY AND MT. UNION BY 820 PM...

THE PRIMARY THREAT FROM THESE STORMS IS WIND GUSTS TO NEAR 40 MPH...
WHICH COULD DOWN TREE LIMBS AND BLOW AROUND UNSECURED SMALL OBJECTS.

LAT...LON 3104 9461 3106 9457 3105 9450 3104 9447
      3106 9434 3047 9282 3009 9307 3071 9460
      3099 9466

JT

Special weather statement, Aug 18, 8:07 PM CDT, 1 hour 9 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
807 PM CDT THU AUG 18 2011

LAZ031>033-041>045-052-190200-
ST. LANDRY LA-LAFAYETTE LA-EVANGELINE LA-ALLEN LA-ACADIA LA-
CALCASIEU LA-JEFFERSON DAVIS LA-UPPER ST. MARTIN LA-VERMILION LA-
807 PM CDT THU AUG 18 2011

...SIGNIFICANT WEATHER ADVISORY FOR ST. LANDRY...LAFAYETTE...
EVANGELINE...ALLEN...ACADIA...CALCASIEU...JEFFERSON DAVIS...VERMILION
AND ST. MARTIN PARISHES UNTIL 900 PM CDT...

AT 803 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SQUALL LINE OF STRONG WINDS...THE LEADING EDGE EXTENDING FROM KINDER
TO 8 MILES SOUTHEAST OF MELVILLE...MOVING SOUTH AT 20 MPH.

* THE SQUALL LINE OF STRONG WINDS WILL BE NEAR...
  SUNSET...GRAND COTEAU AND BRANCH BY 815 PM...
  KROTZ SPRINGS AND CANKTON BY 820 PM...
  MAXIE...MIRE AND ARNAUDVILLE BY 825 PM...
  FENTON AND MAXIE BY 830 PM...

THE PRIMARY THREAT FROM THESE STORMS IS WIND GUSTS TO NEAR 40 MPH...
WHICH COULD DOWN TREE LIMBS AND BLOW AROUND UNSECURED SMALL OBJECTS.

LAT...LON 3004 9214 3015 9302 3054 9280 3053 9225
      3069 9173 3056 9175 3052 9173 3051 9173
      3050 9170 3043 9163 3039 9162 3037 9164
      3025 9158

JT

Local storm report, Aug 18, 8:40 PM CDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
840 PM CDT THU AUG 18 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0820 PM     HAIL             5 SSW OPELOUSAS         30.46N 92.12W
08/18/2011  E0.50 INCH       ST. LANDRY         LA   PUBLIC

            PUBLIC REPORTS MARBLE SIZE HAIL AND WIND GUSTS TO 45 MPH.

0822 PM     HAIL             5 S OPELOUSAS           30.45N 92.09W
08/18/2011  E0.50 INCH       ST. LANDRY         LA   PUBLIC

            PUBLIC REPORTS DIME SIZE HAIL AND WIND GUSTS OF 35-40 MPH

0822 PM     TSTM WND GST     3 N OPELOUSAS           30.57N 92.08W
08/18/2011  E50 MPH          ST. LANDRY         LA   PUBLIC

            PUBLIC REPORTS WIND GUST OF 50 MPH. WINDS BLEW OVER A
            WROUGHT IRON LAWN CHAIR

0822 PM     TSTM WND GST     CARENCRO                30.31N 92.04W
08/18/2011  E45 MPH          LAFAYETTE          LA   AMATEUR RADIO

            HAM RADIO OPERATOR RELAYED A REPORT OF WIND GUSTS TO 45
            MPH AND FLOODING BEGINNING TO OCCUR BETWEEN CARENCRO AND
            CANKTON

&&

DJONES

Local storm report, Aug 18, 8:43 PM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
843 PM CDT THU AUG 18 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0825 PM     HAIL             5 W OPELOUSAS           30.52N 92.17W
08/18/2011  E1.00 INCH       ST. LANDRY         LA   PUBLIC

            PUBLIC REPORTS QUARTER SIZE HAIL TREE BRANCHES BLOWN DOWN
            AND BLOWN TRANSFORMERS

&&

DJONES

Local storm report, Aug 18, 8:57 PM CDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
857 PM CDT THU AUG 18 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0845 PM     TSTM WND GST     LAFAYETTE               30.22N 92.03W
08/18/2011  E50 MPH          LAFAYETTE          LA   AMATEUR RADIO

            HAM RADIO OPERATOR ESTIMATES WIND GUST OF 50 MPH

0815 PM     TSTM WND GST     SUNSET                  30.41N 92.07W
08/18/2011  E50 MPH          ST. LANDRY         LA   PUBLIC

            PUBLIC ESTIMATES WINDS OF 50 MPH.

0850 PM     HAIL             LAFAYETTE               30.22N 92.03W
08/18/2011  E0.50 INCH       LAFAYETTE          LA   AMATEUR RADIO

            HAM RADIO OPERATOR REPORTS DIME SIZE HAIL NEAR LAFAYETTE
            HIGH SCHOOL. OPERATOR ALSO MEASURED A WIND GUST OF 48 MPH

0844 PM     TSTM WND GST     LAFAYETTE               30.22N 92.03W
08/18/2011  M53 MPH          LAFAYETTE          LA   ASOS

            LAFAYETTE ASOS MEASURED A WIND GUST OF 53 MPH.

&&

DJONES

Local storm report, Aug 18, 9:16 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
916 PM CDT THU AUG 18 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0902 PM     TSTM WND GST     LAFAYETTE               30.22N 92.03W
08/18/2011  E70 MPH          LAFAYETTE          LA   PUBLIC

            PUBLIC ESTIMATES WIND GUST OF 60-75 MPH. REPORT ALSO
            INDICATED THAT A PINE CONE FLEW THROUGH AND BROKE A HOUSE
            WINDOW.

0902 PM     HAIL             SCOTT                   30.24N 92.09W
08/18/2011  E0.25 INCH       LAFAYETTE          LA   PUBLIC

            HAM OPERATOR REPORTS PEA SIZE HAIL ALONG I-10 AND HIGHWAY
            93 AS WELL AS WIND GUSTS TO 45 MPH.

0900 PM     TSTM WND GST     LAFAYETTE               30.22N 92.03W
08/18/2011  E75 MPH          LAFAYETTE          LA   PUBLIC

            PUBLIC ESTIMATES WIND GUST OF 75 MPH. POWER OUTAGES ALSO
            REPORTED ON THRUWAY.

0907 PM     LIGHTNING        SCOTT                   30.24N 92.09W
08/18/2011                   LAFAYETTE          LA   AMATEUR RADIO

            HAM RADIO OPERATOR REPORTS LIGHTNING STRUCK A TRAILER
            BETWEEN SCOTT AND DUSON AND THE TRAILER IS ON FIRE.

0854 PM     TSTM WND GST     LAFAYETTE               30.22N 92.03W
08/18/2011  M72 MPH          LAFAYETTE          LA   ASOS

            LAFAYETTE ASOS MEASURED A WIND GUST OF 72 MPH

&&

DJONES

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 18, 7:05 PM CDT	Special Weather Statement	LCH	Allen, Saint Landry	55 min
Aug 18, 7:10 PM CDT	Severe Thunderstorm Warning	LCH	Avoyelles, Saint Landry	65 min
Aug 18, 7:50 PM CDT	Special Marine Warning	LCH		55 min
Aug 18, 7:59 PM CDT	Special Weather Statement	LCH	Beauregard, Calcasieu	61 min
Aug 18, 8:07 PM CDT	Special Weather Statement	LCH	Acadia, Jefferson Davis, Lafayette, Saint Landry	53 min
Aug 18, 8:19 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Allen, Evangeline, Iberia, Jefferson Davis, Lafayette and 3 more	56 min
Aug 18, 9:35 PM CDT	Special Weather Statement	LCH	Beauregard	55 min
Aug 18, 10:09 PM CDT	Special Weather Statement	LCH	Calcasieu	66 min
Aug 18, 10:16 PM CDT	Special Marine Warning	LCH		59 min
Aug 18, 10:31 PM CDT	Special Weather Statement	LCH	Cameron	59 min
Aug 18, 10:46 PM CDT	Special Marine Warning	LCH		59 min
Aug 18, 10:52 PM CDT	Special Weather Statement	LCH	Cameron	53 min
Aug 18, 11:12 PM CDT	Special Marine Warning	LCH		63 min
Aug 18, 11:31 PM CDT	Special Marine Warning	LCH		59 min
Aug 19, 4:31 AM CDT	Heat Advisory	LCH	Allen, Avoyelles, Beauregard, Evangeline, Lafayette, Rapides and 3 more	13 hr

Nearby

Severe Thunderstorm Warnings in Louisiana, 2011 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.