Alert archive / Louisiana / Special Weather Statements in 2012

Special Weather Statement, NWS Lake Charles, LA

August 9, 2012St. Mary Parish, Louisiana

NWS Lake Charles, LA issued this special weather statement at Aug 9, 2012, 7:46 PM CDT for St. Mary Parish, 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 9, 2012, 7:46 PM CDT (00:46 UTC)
Expired: Aug 9, 2012, 8:45 PM CDT
In force: 59 min
Issued by: NWS Lake Charles, LA

County St. Mary Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 0.8 hours before the alert went out and 181 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: 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

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 9, 6:36 PM CDT, 1 hour 10 minutes earlier.

Area forecast discussion, Aug 9, 6:36 PM CDT, 1 hour 10 minutes before

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Hazardous weather outlook, Aug 9, 5:26 AM CDT, 14 hours 20 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAKE CHARLES LA
526 AM CDT THU AUG 9 2012

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-
101030-
VERNON-RAPIDES-AVOYELLES-BEAUREGARD-ALLEN-EVANGELINE-ST. LANDRY-
CALCASIEU-JEFFERSON DAVIS-ACADIA-LAFAYETTE-UPPER ST. MARTIN-
VERMILION-IBERIA-ST. MARY-LOWER ST. MARTIN-WEST CAMERON-
EAST CAMERON-TYLER-HARDIN-JEFFERSON-ORANGE-NORTHERN JASPER-
NORTHERN NEWTON-SOUTHERN JASPER-SOUTHERN NEWTON-
526 AM CDT THU AUG 9 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
LOUISIANA...SOUTH CENTRAL LOUISIANA...SOUTHWEST LOUISIANA...WEST
CENTRAL LOUISIANA AND SOUTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY. TYPICAL BRIEF
HEAVY RAINS AND CONSIDERABLE CLOUD TO GROUND LIGHTNING WILL
ACCOMPANY THIS ACTIVITY. NO ORGANIZED SEVERE THUNDERSTORMS ARE
ANTICIPATED...BUT A PULSE THUNDERSTORM BRIEFLY REACHING SEVERE LIMITS
CANNOT BE RULED OUT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SHOWER AND THUNDERSTORM ACTIVITY IS EXPECTED TO CONTINUE THROUGH
FRIDAY AS A WEAK COLD FRONT SLIDES ACROSS THE FORECAST AREA AND
STALLS NEAR THE COAST. AS WILL BE THE CASE TODAY...NO ORGANIZED SEVERE
THUNDERSTORMS ARE ANTICIPATED....BUT A PULSE THUNDERSTORM BRIEFLY
REACHING SEVERE LIMITS CANNOT BE RULED OUT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY NOT BE REQUIRED.

GMZ430-432-435-450-452-455-470-472-475-101030-
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-
526 AM CDT THU AUG 9 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NORTHWEST
GULF OF MEXICO.

.DAY ONE...TODAY AND TONIGHT

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS CAN BE EXPECTED TODAY
AND TONIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH
FRIDAY...WITH CHANCES LOWERING THROUGH THE WEEKEND AND NEW WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE REQUIRED.

In the hours before

Special weather statement, Aug 9, 2:59 PM CDT, 4 hours 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
259 PM CDT THU AUG 9 2012

LAZ033-045-092045-
ST. LANDRY LA-UPPER ST. MARTIN LA-
259 PM CDT THU AUG 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR ST. LANDRY AND ST. MARTIN
PARISHES UNTIL 345 PM CDT...

AT 256 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 6 MILES EAST OF PORT BARRE...MOVING EAST AT 10
MPH.

* THE STRONG THUNDERSTORM WILL BE NEAR...
  KROTZ SPRINGS BY 335 PM...

THE PRIMARY THREATS FROM THIS STORM ARE FREQUENT LIGHTNING AND WIND
GUSTS TO NEAR 40 MPH...WHICH COULD DOWN TREE LIMBS AND BLOW AROUND
UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE HOME OR BUILDING
UNTIL THIS STORM HAS PASSED.

THIS STORM COULD PRODUCE RAINFALL AMOUNTS OF ONE TO TWO INCHES IN A
SHORT PERIOD OF TIME...RESULTING IN PONDING OF WATER AROUND LOW LYING
ROADWAYS. REMEMBER...DO NOT DRIVE YOUR VEHICLE INTO WATER COVERED
ROADWAYS. THE DEPTH MAY BE TOO GREAT TO ALLOW A SAFE CROSSING.

LAT...LON 3051 9198 3069 9194 3066 9174 3063 9174
      3061 9175 3056 9175 3052 9173 3051 9173
      3050 9170 3046 9166

24

Special weather statement, Aug 9, 3:51 PM CDT, 3 hours 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
351 PM CDT THU AUG 9 2012

LAZ033-045-092130-
ST. LANDRY LA-UPPER ST. MARTIN LA-
351 PM CDT THU AUG 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR ST. LANDRY AND ST. MARTIN
PARISHES UNTIL 430 PM CDT...

AT 346 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 2 MILES WEST OF LEONVILLE...MOVING EAST AT 15
MPH.

* THE STRONG THUNDERSTORM WILL BE NEAR...
  ARNAUDVILLE BY 410 PM...
  CECILIA BY 430 PM...

THE PRIMARY THREATS FROM THIS STORM ARE FREQUENT LIGHTNING AND WIND
GUSTS TO NEAR 40 MPH...WHICH COULD DOWN TREE LIMBS AND BLOW AROUND
UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE HOME OR BUILDING
UNTIL THIS STORM HAS PASSED.

THIS STORM COULD PRODUCE RAINFALL AMOUNTS OF ONE TO TWO INCHES IN A
SHORT PERIOD OF TIME...RESULTING IN PONDING OF WATER AROUND LOW LYING
ROADWAYS. REMEMBER...DO NOT DRIVE YOUR VEHICLE INTO WATER COVERED
ROADWAYS. THE DEPTH MAY BE TOO GREAT TO ALLOW A SAFE CROSSING.

LAT...LON 3050 9173 3031 9176 3040 9210 3057 9205
      3055 9174 3052 9172 3051 9173

24

Special weather statement, Aug 9, 4:33 PM CDT, 3 hours 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
433 PM CDT THU AUG 9 2012

LAZ033-044-045-092230-
ST. LANDRY LA-LAFAYETTE LA-UPPER ST. MARTIN LA-
433 PM CDT THU AUG 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR ST. LANDRY...LAFAYETTE AND ST.
MARTIN PARISHES UNTIL 530 PM CDT...

AT 432 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
CLUSTER OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 2 MILES
SOUTHEAST OF OPELOUSAS TO 3 MILES SOUTHEAST OF HENDERSON...MOVING
SOUTHEAST AT 15 TO 20 MPH.

* THE CLUSTER OF STRONG THUNDERSTORMS WILL BE NEAR...
  GRAND COTEAU...SUNSET AND BUTTE LA ROSE BY 440 PM...
  CANKTON BY 445 PM...
  CARENCRO BY 500 PM...
  BREAUX BRIDGE BY 525 PM...
  CATAHOULA BY 530 PM...

THE PRIMARY THREATS FROM THESE STORMS ARE FREQUENT LIGHTNING AND WIND
GUSTS 40 TO 50 MPH...WHICH COULD DOWN TREE LIMBS AND BLOW AROUND
UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE HOME OR BUILDING
UNTIL THESE STORMS HAVE PASSED.

THESE STORMS COULD PRODUCE RAINFALL AMOUNTS OF ONE TO THREE INCHES
IN A SHORT PERIOD OF TIME...RESULTING IN PONDING OF WATER AROUND LOW
LYING ROADWAYS. REMEMBER...DO NOT DRIVE YOUR VEHICLE INTO WATER
COVERED ROADWAYS. THE DEPTH MAY BE TOO GREAT TO ALLOW A SAFE
CROSSING.

LAT...LON 3008 9158 3029 9214 3032 9214 3033 9216
      3035 9217 3053 9217 3058 9212 3055 9174
      3051 9173 3050 9170 3043 9163 3039 9162
      3037 9164 3026 9159 3024 9151

LANDRENEAU

Special weather statement, Aug 9, 5:20 PM CDT, 2 hours 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
520 PM CDT THU AUG 9 2012

TXZ260-092315-
NORTHERN NEWTON TX-
520 PM CDT THU AUG 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR NEWTON COUNTY UNTIL 615 PM CDT...

AT 520 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM OVER JAMESTOWN...MOVING SOUTHEAST AT 5 MPH.

* THE STRONG THUNDERSTORM WILL BE NEAR...
  NEWTON BY 605 PM...

THE PRIMARY THREATS FROM THIS STORM ARE FREQUENT LIGHTNING...PEA TO
NICKEL SIZE HAIL...AND WIND GUSTS 40 TO 50 MPH...WHICH COULD DOWN
TREE LIMBS AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A
SAFE HOME OR BUILDING UNTIL THIS STORM HAS PASSED.

LAT...LON 3091 9362 3069 9371 3081 9387 3092 9387
      3095 9386

LANDRENEAU

Special weather statement, Aug 9, 5:26 PM CDT, 2 hours 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
526 PM CDT THU AUG 9 2012

LAZ032-033-043-092330-
ST. LANDRY LA-EVANGELINE LA-ACADIA LA-
526 PM CDT THU AUG 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR ST. LANDRY...EVANGELINE AND
ACADIA PARISHES UNTIL 630 PM CDT...

AT 523 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 3 MILES WEST OF DURALDE...MOVING SOUTHEAST AT 15
MPH.

* THE STRONG THUNDERSTORM WILL BE NEAR...
  DURALDE BY 535 PM...
  EUNICE BY 605 PM...
  EUNICE BY 610 PM...
  SAVOY BY 625 PM...

THE PRIMARY THREATS FROM THIS STORM ARE FREQUENT LIGHTNING...PEA TO
NICKEL SIZE HAIL...AND WIND GUSTS 40 TO 50 MPH...WHICH COULD DOWN
TREE LIMBS AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A
SAFE HOME OR BUILDING UNTIL THIS STORM HAS PASSED.

LAT...LON 3050 9225 3037 9250 3052 9262 3057 9258
      3059 9260 3061 9260 3066 9255

RUA

Special weather statement, Aug 9, 7:46 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 11:18 PM CDT	Severe Thunderstorm Warning	LCH	Avoyelles, Rapides	72 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
Aug 10, 3:51 PM CDT	Special Weather Statement	LCH	Jasper, Tyler	54 min
Aug 10, 4:15 PM CDT	Severe Thunderstorm Warning	LCH	Jasper, Tyler	37 min
Aug 10, 4:48 PM CDT	Special Weather Statement	LCH	Hardin, Jasper, Tyler	72 min
Aug 10, 6:01 PM CDT	Special Weather Statement	LCH	Orange	59 min
Aug 10, 6:19 PM CDT	Severe Thunderstorm Warning	LCH	Jasper, Newton, Orange	41 min

Nearby

Special Weather Statements in Louisiana, 2012 Every special weather statement 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.