Alert archive / Louisiana / Wind Advisories in 2014

Wind Advisory 9, NWS Lake Charles, LA

February 20, 201410 parishes in Louisiana; 4 counties in Texas

NWS Lake Charles, LA issued this wind advisory at Feb 20, 2014, 12:35 PM CST for 10 parishes in Louisiana; 4 counties in Texas. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Feb 20, 2014, 12:35 PM CST (18:35 UTC)
Expired
Feb 20, 2014, 6:00 PM CST
In force
5 hr
Issued by
NWS Lake Charles, LA

Counties Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Cameron Parish, LA, Evangeline Parish, LA, Lafayette Parish, LA, Rapides Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Vernon Parish, LA, Hardin County, TX, Jasper County, TX, Newton County, TX, Tyler County, TX

The radar

The Ft Polk radar (KPOE), 58 km from the middle of the area, began a volume at 18:34 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.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 6.6 hours before the alert went out and 61 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, Lake Charles Mun, LA at 12:00Z on 2014-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 540 joules per kilogram.LCLLFCEL10008507005003002001001 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, Lake Charles Mun, LA at 12:00Z on 2014-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 153 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
540 J/kg
Mixed-layer CIN
-136 J/kg
Mixed-layer LCL
512 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
153 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

617 
WWUS74 KLCH 201835
NPWLCH

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1235 PM CST THU FEB 20 2014

...STRONG SOUTHERLY WINDS IMPACTING THE AREA...

.THE COMBINATION OF HIGH PRESSURE RIDGING ACROSS THE NORTHERN GULF
OF MEXICO AND LOW PRESSURE STRENGTHENING OVER THE SOUTHERN PLAINS
IS PRODUCING STRONG SOUTHERLY WINDS ACROSS THE AREA. THESE WINDS
WILL GRADUALLY RELAX FROM WEST TO EAST ACROSS THE AREA THIS
AFTERNOON AS A COLD FRONT APPROACHES THE REGION.

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-
210000-
/O.NEW.KLCH.WI.Y.0009.140220T1835Z-140221T0000Z/
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-
INCLUDING THE CITIES OF...LEESVILLE...NEW LLANO...ALEXANDRIA...
PINEVILLE...MARKSVILLE...BUNKIE...COTTONPORT...SIMMESPORT...
MANSURA...DE RIDDER...OAKDALE...KINDER...VILLE PLATTE...MAMOU...
OPELOUSAS...EUNICE...LAKE CHARLES...SULPHUR...JENNINGS...WELSH...
LAKE ARTHUR...CROWLEY...RAYNE...CHURCH POINT...LAFAYETTE...
BREAUX BRIDGE...ST. MARTINVILLE...ABBEVILLE...KAPLAN...
NEW IBERIA...MORGAN CITY...FRANKLIN...PATTERSON...BERWICK...
BAYOU VISTA...STEPHENSVILLE...HACKBERRY...HOLLY BEACH...CAMERON...
GRAND CHENIER...WOODVILLE...COLMESNEIL...LUMBERTON...SILSBEE...
BEAUMONT...PORT ARTHUR...ORANGE...VIDOR...BRIDGE CITY...JASPER...
KIRBYVILLE...NEWTON...BUNA...DEWEYVILLE
1235 PM CST THU FEB 20 2014

...WIND ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM CST THIS EVENING. 

* WINDS...SOUTHERLY WINDS AROUND 20 MPH WITH GUSTS TO 30 MPH.

* IMPACTS...HIGH PROFILE VEHICLES MAY HAVE DIFFICULTY DRIVING ON 
  EAST TO WEST ROADWAYS...ESPECIALLY BRIDGES. 

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.

&&

$$

25
1 follow-up statement
867 
WWUS74 KLCH 202102
NPWLCH

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAKE CHARLES LA
302 PM CST THU FEB 20 2014

...STRONG SOUTHERLY WINDS IMPACTING THE AREA...

.THE COMBINATION OF HIGH PRESSURE RIDGING ACROSS THE NORTHERN
GULF OF MEXICO AND LOW PRESSURE STRENGTHENING OVER THE SOUTHERN
PLAINS IS PRODUCING STRONG SOUTHERLY WINDS ACROSS THE AREA. THESE
WINDS WILL GRADUALLY RELAX FROM WEST TO EAST ACROSS THE AREA THIS
AFTERNOON AS A COLD FRONT APPROACHES THE REGION.

LAZ027-030-041-073-TXZ180-201-215-216-259>262-202215-
/O.CAN.KLCH.WI.Y.0009.000000T0000Z-140221T0000Z/
VERNON-BEAUREGARD-CALCASIEU-WEST CAMERON-TYLER-HARDIN-JEFFERSON-
ORANGE-NORTHERN JASPER-NORTHERN NEWTON-SOUTHERN JASPER-
SOUTHERN NEWTON-
INCLUDING THE CITIES OF...LEESVILLE...NEW LLANO...DE RIDDER...
LAKE CHARLES...SULPHUR...HACKBERRY...HOLLY BEACH...WOODVILLE...
COLMESNEIL...LUMBERTON...SILSBEE...BEAUMONT...PORT ARTHUR...
ORANGE...VIDOR...BRIDGE CITY...JASPER...KIRBYVILLE...NEWTON...
BUNA...DEWEYVILLE
302 PM CST THU FEB 20 2014

...WIND ADVISORY IS CANCELED...

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

SOUTHERLY WINDS HAVE DIMINISHED OVER THE PAST HOUR...THEREFORE THE
WIND ADVISORY HAS BEEN CANCELED.

$$

LAZ028-029-031>033-042>045-052>055-074-210000-
/O.CON.KLCH.WI.Y.0009.000000T0000Z-140221T0000Z/
RAPIDES-AVOYELLES-ALLEN-EVANGELINE-ST. LANDRY-JEFFERSON DAVIS-
ACADIA-LAFAYETTE-UPPER ST. MARTIN-VERMILION-IBERIA-ST. MARY-
LOWER ST. MARTIN-EAST CAMERON-
INCLUDING THE CITIES OF...ALEXANDRIA...PINEVILLE...MARKSVILLE...
BUNKIE...COTTONPORT...SIMMESPORT...MANSURA...OAKDALE...KINDER...
VILLE PLATTE...MAMOU...OPELOUSAS...EUNICE...JENNINGS...WELSH...
LAKE ARTHUR...CROWLEY...RAYNE...CHURCH POINT...LAFAYETTE...
BREAUX BRIDGE...ST. MARTINVILLE...ABBEVILLE...KAPLAN...
NEW IBERIA...MORGAN CITY...FRANKLIN...PATTERSON...BERWICK...
BAYOU VISTA...STEPHENSVILLE...CAMERON...GRAND CHENIER
302 PM CST THU FEB 20 2014

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING...

* WINDS...SOUTHERLY WINDS AROUND 20 MPH WITH GUSTS TO 30 MPH.

* IMPACTS...HIGH PROFILE VEHICLES MAY HAVE DIFFICULTY DRIVING ON 
  EAST TO WEST ROADWAYS...ESPECIALLY BRIDGES. 

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.

&&

$$

25

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 19, 7:24 PM CSTDense Fog AdvisoryLCHCameron, Lafayette, Saint Martin14 hr
Feb 20, 3:33 AM CSTLow Water AdvisoryLCH29 hr
Feb 20, 3:33 AM CSTSmall Craft AdvisoryLCH32 hr
Feb 20, 4:59 PM CSTSpecial Weather StatementLCHSaint Landry61 min
Feb 20, 4:41 PM CSTSpecial Weather StatementLCHJasper64 min
Feb 20, 5:46 PM CSTSpecial Weather StatementLCHHardin, Jasper59 min
Feb 20, 5:51 PM CSTSpecial Weather StatementLCHOrange54 min
Feb 20, 5:57 PM CSTSevere Thunderstorm WarningLCHHardin, Jasper, Newton, Tyler63 min

Nearby

Wind Advisories in Louisiana, 2014Wind Advisories in Texas, 2014Every wind advisory in 2014

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.