Alert archive / Louisiana / Wind Advisories in 2017

Wind Advisory 13, NWS Lake Charles, LA

August 29, 20174 counties in Texas; 9 parishes in Louisiana

NWS Lake Charles, LA issued this wind advisory at Aug 29, 2017, 11:29 PM CDT for 4 counties in Texas; 9 parishes in Louisiana. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued
Aug 29, 2017, 11:29 PM CDT (04:29 UTC)
Expired
Aug 30, 2017, 7:00 PM CDT
In force
20 hr
Issued by
NWS Lake Charles, LA

Counties Allen Parish, LA, Avoyelles Parish, LA, Beauregard 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), 52 km from the middle of the area, began a volume at 04:31 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 00:00Z, 4.5 hours before the alert went out and 67 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 00:00Z on 2017-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 888 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 00:00Z on 2017-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
888 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
667 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.6

Open this sounding in Storm Lab

The text

As transmitted.

175 
WWUS74 KLCH 300429
NPWLCH

URGENT - WEATHER MESSAGE
National Weather Service Lake Charles LA
1129 PM CDT Tue Aug 29 2017

...GUSTY WINDS EXPECTED TOMORROW AS HARVEY MOVES INLAND...

.Tropical Storm Harvey was over the Gulf of Mexico about 60 miles 
south-southwest of Cameron, Louisiana. Harvey is moving toward the
northeast near 6 mph, and this motion is expected to continue the 
rest of tonight and on Wednesday. The center of Harvey is expected
to move inland along the Cameron Parish coastline near Rutherford
Beach early Wednesday morning, then continue into Central
Louisiana by Wednesday afternoon. Gusts to near tropical storm
force are possible. 

LAZ027>033-043>045-TXZ180-201-259>262-301230-
/O.NEW.KLCH.WI.Y.0013.170830T0429Z-170831T0000Z/
Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry-
Acadia-Lafayette-Upper St. Martin-Tyler-Hardin-Northern Jasper-
Northern Newton-Southern Jasper-Southern Newton-
Including the cities of Fort Polk, Pickering, Leesville, Slagle, 
Alexandria, Pineville, Effie, Marksville, Bunkie, Cottonport, 
Simmesport, Mansura, Bundick Lake, De Ridder, Fields, Oretta, 
Oakdale, Kinder, Ville Platte, Beaver, St. Landry, Mamou, 
Reddell, Lawtell, Opelousas, Eunice, Crowley, Rayne, Branch, 
Church Point, Richard, Lafayette, Breaux Bridge, Cade, 
St. Martinville, Town Bluff, Fred, Hillister, Ivanhoe, Spurger, 
Warren, Woodville, Lumberton, Silsbee, Holly Springs, Jasper, 
Kirbyville, Magnolia Springs, Mt. Union, Roganville, Burkeville, 
Farrsville, Jamestown, Newton, Wiergate, Bleakwood, Call, Gist, 
Buna, Evadale, and Deweyville
1129 PM CDT Tue Aug 29 2017

...WIND ADVISORY IN EFFECT UNTIL 7 PM CDT WEDNESDAY...

The National Weather Service in Lake Charles has issued a Wind
Advisory, which is in effect until 7 PM CDT Wednesday. 

* TIMING...Through Wednesday.

* WINDS...Gusts to tropical storm force

* IMPACTS...Difficult driving conditions for high profile 
  vehicles, especially on elevated roadways. Loose lawn objects 
  along with trash cans will be blown around. Small tree limbs 
  broken. Sporadic power outages possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 20 mph are expected. Winds
this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

13
1 follow-up statement
236 
WWUS74 KLCH 300953
NPWLCH

URGENT - WEATHER MESSAGE
National Weather Service Lake Charles LA
453 AM CDT Wed Aug 30 2017

...GUSTY WINDS EXPECTED TODAY AS HARVEY CONTINUES TO MOVE 
INLAND...

.The center of Harvey has made landfall this morning and is
expected to continue north northeast into Central Louisiana
through this afternoon. Gusts to near tropical storm force are 
possible.

LAZ027>033-043>045-TXZ180-201-259>262-302300-
/O.CON.KLCH.WI.Y.0013.000000T0000Z-170831T0000Z/
Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry-
Acadia-Lafayette-Upper St. Martin-Tyler-Hardin-Northern Jasper-
Northern Newton-Southern Jasper-Southern Newton-
Including the cities of Fort Polk, Pickering, Leesville, Slagle, 
Alexandria, Pineville, Effie, Marksville, Bunkie, Cottonport, 
Simmesport, Mansura, Bundick Lake, De Ridder, Fields, Oretta, 
Oakdale, Kinder, Ville Platte, Beaver, St. Landry, Mamou, 
Reddell, Lawtell, Opelousas, Eunice, Crowley, Rayne, Branch, 
Church Point, Richard, Lafayette, Breaux Bridge, Cade, 
St. Martinville, Town Bluff, Fred, Hillister, Ivanhoe, Spurger, 
Warren, Woodville, Lumberton, Silsbee, Holly Springs, Jasper, 
Kirbyville, Magnolia Springs, Mt. Union, Roganville, Burkeville, 
Farrsville, Jamestown, Newton, Wiergate, Bleakwood, Call, Gist, 
Buna, Evadale, and Deweyville
453 AM CDT Wed Aug 30 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* TIMING...Through Wednesday.

* WINDS...Gusts to tropical storm force

* IMPACTS...Difficult driving conditions for high profile 
  vehicles, especially on elevated roadways. Loose lawn objects 
  along with trash cans will be blown around. Small tree limbs 
  broken. Sporadic power outages possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 20 mph are expected. Winds
this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 7:24 PM CDTFlash Flood WarningLCHJasper, Newton6 hr
Aug 29, 10:16 PM CDTFlash Flood Warning EmergencyLCHHardin, Jasper, Jefferson, Newton, Orange11 hr
Aug 29, 10:22 PM CDTFlash Flood WarningLCHJasper, Newton11 hr
Aug 29, 11:10 PM CDTFlash Flood WarningLCHHardin, Jasper, Tyler10 hr
Aug 30, 8:40 AM CDTFlash Flood Warning EmergencyLCHHardin, Jasper, Jefferson, Newton, Orange, Tyler24 hr
Aug 29, 7:09 PM CDTFlash Flood WarningLCHCalcasieu, Cameron3 hr
Aug 29, 7:13 PM CDTSpecial Marine WarningLCH32 min
Aug 29, 7:42 PM CDTSpecial Marine WarningLCH33 min
Aug 30, 4:18 AM CDTFlash Flood WarningLCHCalcasieu, Cameron5 hr
Aug 30, 8:20 AM CDTFlash Flood WarningLCHBeauregard, Calcasieu, Vernon12 hr

Nearby

Wind Advisories in Louisiana, 2017Wind Advisories in Texas, 2017Every wind advisory in 2017

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.