Alert archive / Louisiana / Wind Advisories in 2012

Wind Advisory 13, NWS Lake Charles, LA

March 21, 2012Saint Martin Parish, Louisiana

NWS Lake Charles, LA issued this wind advisory at Mar 21, 2012, 3:48 AM CDT for Saint Martin Parish, Louisiana. It took effect at Mar 21, 2012, 4:00 AM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Mar 21, 2012, 3:48 AM CDT (08:48 UTC)
In effect from
Mar 21, 2012, 4:00 AM CDT
Expired
Mar 21, 2012, 10:12 AM CDT
In force
6 hr
Issued by
NWS Lake Charles, LA

County Saint Martin Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 8.8 hours before the alert went out and 184 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-pSkew-T log-p diagram, Slidell Radar S, LA at 00:00Z on 2012-03-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1474 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2012-03-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1474 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
578 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
239 m²/s²
Significant tornado parameter
1.2
Supercell composite
8.0

Open this sounding in Storm Lab

The text

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

191 
WWUS74 KLCH 210848
NPWLCH

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAKE CHARLES LA
348 AM CDT WED MAR 21 2012

...A WIND ADVISORY IS IN EFFECT UNTIL NOON CDT TODAY...

.GUSTY SOUTHEASTERLY WINDS WILL CONTINUE THIS MORNING OVER COASTAL
ACADIANA AHEAD OF AN APPROACHING COLD FRONT.

LAZ053-054-211700-
/O.CAN.KLCH.WI.Y.0012.000000T0000Z-120321T1200Z/
/O.NEW.KLCH.WI.Y.0013.120321T0900Z-120321T1700Z/
IBERIA-ST. MARY-
INCLUDING THE CITIES OF...NEW IBERIA...MORGAN CITY...FRANKLIN...
PATTERSON...BERWICK...BAYOU VISTA
348 AM CDT WED MAR 21 2012

...WIND ADVISORY IN EFFECT UNTIL NOON CDT TODAY...

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL NOON CDT TODAY. 

* TIMING...THROUGH THIS MORNING.

* WINDS...SOUTH TO SOUTHEAST AT 20 TO 25 MPH WITH HIGHER GUSTS.

* IMPACTS...LOOSE OBJECTS SUCH AS GARBAGE CANS WILL BE BLOWN 
  AROUND. DRIVING MAY BE DIFFICULT FOR HIGH PROFILE VEHICLES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 20 TO 34 MPH ARE
EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

WINDS OVER LOCAL WATERWAYS COULD BE 5 MPH HIGHER THAN OVER LAND.
SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING.

&&

$$

LAZ052-211700-
/O.CAN.KLCH.WI.Y.0011.000000T0000Z-120321T1200Z/
/O.NEW.KLCH.WI.Y.0013.120321T0900Z-120321T1700Z/
VERMILION-
INCLUDING THE CITIES OF...ABBEVILLE...KAPLAN
348 AM CDT WED MAR 21 2012

...WIND ADVISORY IN EFFECT UNTIL NOON CDT TODAY...

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL NOON CDT TODAY. 

* TIMING...FROM LATE MORNING THROUGH EARLY EVENING.

* WINDS...SOUTH AT 20 TO 30 MPH WITH HIGHER GUSTS... ESPECIALLY 
  NEAR THE COAST AND NEAR AREA LAKES. 

* IMPACTS...LOOSE OBJECTS SUCH AS GARBAGE CANS WILL BE BLOWN 
  AROUND. DRIVING MAY BE DIFFICULT FOR HIGH PROFILE VEHICLES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 20 TO 34 MPH ARE
EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

WINDS OVER LOCAL WATERWAYS COULD BE 5 MPH HIGHER THAN OVER LAND.
SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING.

&&

$$

LAZ074-211000-
/O.CAN.KLCH.WI.Y.0011.000000T0000Z-120321T1200Z/
EAST CAMERON-
INCLUDING THE CITIES OF...CAMERON...GRAND CHENIER
348 AM CDT WED MAR 21 2012

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS CANCELLED THE
WIND ADVISORY. 

A COLD FRONT HAS NOW MOVED EAST OF THE AREA AND WINDS HAVE DIMINISHED.

$$

LAZ055-211700-
/O.NEW.KLCH.WI.Y.0013.120321T0900Z-120321T1700Z/
LOWER ST. MARTIN-
INCLUDING THE CITY OF...STEPHENSVILLE
348 AM CDT WED MAR 21 2012

...WIND ADVISORY IN EFFECT UNTIL NOON CDT TODAY...

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL NOON CDT TODAY. 

* TIMING...THROUGH THIS MORNING.

* WINDS...SOUTH TO SOUTHEAST AT 20 TO 25 MPH WITH HIGHER GUSTS.

* IMPACTS...LOOSE OBJECTS SUCH AS GARBAGE CANS WILL BE BLOWN 
  AROUND. DRIVING MAY BE DIFFICULT FOR HIGH PROFILE VEHICLES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 20 TO 34 MPH ARE
EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

WINDS OVER LOCAL WATERWAYS COULD BE 5 MPH HIGHER THAN OVER LAND.
SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING.

&&

$$
1 follow-up statement
377 
WWUS74 KLCH 211512
NPWLCH

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1012 AM CDT WED MAR 21 2012

...WIND ADVISORY FOR LOWER ACADIANA CANCELLED...

.OBSERVATIONS FROM LOWER ACADIANA SHOW THAT WINDS HAVE RELAXED
WITH THE PASSAGE OF THE FRONTAL BOUNDARY...THEREFORE THE WIND
ADVISORY WHICH HAD BEEN ISSUED EARLIER HAS BEEN CANCELLED.

LAZ052>055-211615-
/O.CAN.KLCH.WI.Y.0013.000000T0000Z-120321T1700Z/
VERMILION-IBERIA-ST. MARY-LOWER ST. MARTIN-
INCLUDING THE CITIES OF...ABBEVILLE...KAPLAN...NEW IBERIA...
MORGAN CITY...FRANKLIN...PATTERSON...BERWICK...BAYOU VISTA...
STEPHENSVILLE
1012 AM CDT WED MAR 21 2012

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS CANCELLED THE
WIND ADVISORY. 

OBSERVATIONS SHOW WINDS HAVE RELAXED ACROSS THE AREA...THEREFORE
THE WIND ADVISORY HAS BEEN CANCELLED.

$$

25

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 20, 7:25 PM CDTTornado WarningLCHCalcasieu35 min
Mar 20, 7:29 PM CDTFlash Flood WarningLCHBeauregard, Calcasieu, Vernon5 hr
Mar 20, 8:14 PM CDTRiver Flood WarningLCHVernon5 days
Mar 20, 8:14 PM CDTRiver Flood WarningLCHBeauregard, Calcasieu26 days
Mar 20, 8:20 PM CDTSpecial Marine WarningLCH55 min
Mar 20, 8:57 PM CDTFlash Flood WarningLCHBeauregard, Calcasieu6 hr
Mar 20, 11:59 PM CDTSpecial Marine WarningLCH61 min
Mar 21, 12:19 AM CDTFlash Flood WarningLCHBeauregard, Calcasieu, Vernon6 hr
Mar 21, 12:28 AM CDTSevere Thunderstorm WarningLCHCalcasieu, Cameron, Jefferson Davis62 min
Mar 21, 12:33 AM CDTTornado WarningLCHCalcasieu, Cameron, Jefferson Davis27 min
Mar 21, 1:26 AM CDTTornado WarningLCHJefferson Davis19 min
Mar 21, 1:31 AM CDTSevere Thunderstorm WarningLCHAcadia, Calcasieu, Cameron, Jefferson Davis, Vermilion59 min
Mar 21, 1:50 AM CDTSevere Thunderstorm WarningLCHAllen, Jefferson Davis55 min
Mar 21, 2:13 AM CDTSpecial Weather StatementLCHBeauregard62 min
Mar 21, 2:56 AM CDTFlash Flood WarningLCHAllen, Jefferson Davis4 hr
Mar 21, 3:41 AM CDTTornado WarningLCHCameron, Vermilion34 min
Mar 21, 3:55 AM CDTSpecial Marine WarningLCH65 min
Mar 21, 4:04 AM CDTTornado WarningLCHAcadia, Cameron, Jefferson Davis, Vermilion26 min
Mar 21, 4:35 AM CDTTornado WarningLCHVermilion25 min
Mar 21, 4:44 AM CDTTornado WarningLCHAcadia, Vermilion31 min
Mar 21, 4:51 AM CDTSpecial Marine WarningLCH54 min
Mar 21, 5:17 AM CDTTornado WarningLCHVermilion28 min
Mar 21, 5:34 AM CDTSevere Thunderstorm WarningLCHAcadia, Evangeline, Lafayette, Saint Landry, Vermilion56 min
Mar 21, 5:51 AM CDTTornado WarningLCHLafayette, Vermilion24 min
Mar 21, 6:00 AM CDTSpecial Marine WarningLCH60 min
Mar 21, 6:10 AM CDTAreal Flood WarningLCHBeauregard, Calcasieu, Vernon5 days
Mar 21, 7:01 AM CDTSpecial Weather StatementLCHAvoyelles, Lafayette, Saint Landry, Saint Martin59 min
Mar 21, 7:10 AM CDTSpecial Marine WarningLCH65 min
Mar 21, 7:20 AM CDTSevere Thunderstorm WarningLCHIberia, Saint Martin, St. Mary39 min
Mar 21, 7:24 AM CDTSevere Thunderstorm WarningLCHIberia, Saint Martin47 min
Mar 21, 7:54 AM CDTAreal Flood WarningLCHIberia, St. Mary3 hr
Mar 21, 8:10 AM CDTSevere Thunderstorm WarningLCHIberia, Saint Martin, St. Mary65 min
Mar 21, 10:45 AM CDTRiver Flood WarningLCHBeauregard, Vernon5 days
Mar 21, 4:17 PM CDTAreal Flood AdvisoryLCHIberia, Saint Martin, St. Mary3 hr

Nearby

Wind Advisories in Louisiana, 2012Every wind advisory 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.