Alert archive / Louisiana / Wind Advisories in 2019

Wind Advisory 7, NWS Lake Charles, LA

April 13, 20196 parishes in Louisiana

NWS Lake Charles, LA issued this wind advisory at Apr 13, 2019, 7:13 PM CDT for 6 parishes in Louisiana. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Apr 13, 2019, 7:13 PM CDT (00:13 UTC)
Expired: Apr 14, 2019, 1:00 AM CDT
In force: 6 hr
Issued by: NWS Lake Charles, LA

Counties Avoyelles Parish, LA, Cameron Parish, LA, Evangeline Parish, LA, Lafayette Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA

The radar

The Lake Charles radar (KLCH), 102 km from the middle of the area, began a volume at 00:16 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

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.2 hours before the alert went out and 242 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: 1822 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 617 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 439 m²/s²
0-3 km storm-relative helicity: 458 m²/s²
Significant tornado parameter: 5.5
Supercell composite: 21.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this wind advisory 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 wind advisory went out at Apr 13, 6:58 PM CDT, 15 minutes earlier.

Area forecast discussion, Apr 13, 6:58 PM CDT, 15 minutes before

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Hazardous weather outlook, Apr 13, 4:05 PM CDT, 3 hours 8 minutes before

Hazardous Weather Outlook
National Weather Service Lake Charles LA
405 PM CDT Sat Apr 13 2019

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-
142115-
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-
405 PM CDT Sat Apr 13 2019

This Hazardous Weather Outlook is for portions of central
Louisiana, south central Louisiana, southwest Louisiana, west
central Louisiana, and southeast Texas.

.DAY ONE...This Afternoon and Tonight
Tornado watch 53 remains in effect for the northern half of the
area until 7 PM. Conditions will remain favorable for all forms of
severe weather including tornadoes, damaging winds and large hail.
In addition, brief periods of heavy rainfall will be possible. A
cold front will move through the area from west to east this
evening bringing the severe weather threat to an end.

A wind advisory also remains in effect for portions of southwest
and central Louisiana until 7 PM Saturday. Winds of 20 to 25 MPH
are expected with gusts to 35.

.DAYS TWO THROUGH SEVEN...Sunday through Friday
Another area of low pressure and an associated cold front will
produce scattered to numerous showers and thunderstorms across the
region on Wednesday. Some of these storms will have the potential
to be strong to severe.

.SPOTTER INFORMATION STATEMENT...
Spotter activation may be requested Wednesday.

GMZ430-432-435-450-452-455-470-472-475-142115-
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-
405 PM CDT Sat Apr 13 2019

This Hazardous Weather Outlook is for portions of Gulf of Mexico.

.DAY ONE...This Afternoon and Tonight
Scattered to numerous showers and thunderstorms are expected
across the coastal waters this afternoon into this evening. Some
storms could become strong to severe with waterspouts, hail and
strong gusty winds. In addition, heavy rainfall could reduce
visibilities to less than one mile at times. Storms will end from
west to east later night.

Strong onshore flow will continue through the evening with strong
offshore flow developing later tonight following the frontal
passage. A gale warning has been issued from 1 AM until 2 PM
Sunday. A small craft advisory will bracket the gale warning both
through this evening and tomorrow afternoon. Sustained winds of 20
to 30 knots with gusts to 40 knots can be expected. This will
result in seas building to 7 to 10 feet.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

.SPOTTER INFORMATION STATEMENT...
Spotter activation may be requested Wednesday.

In the hours before

Special weather statement, Apr 13, 3:22 PM CDT, 3 hours 51 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
322 PM CDT Sat Apr 13 2019

LAZ027-TXZ259-260-132100-
Vernon LA-Northern Newton TX-Northern Jasper TX-
322 PM CDT Sat Apr 13 2019

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL VERNON PARISH...
NORTHERN NEWTON AND EAST CENTRAL JASPER COUNTIES UNTIL 400 PM CDT...

At 322 PM CDT, Doppler radar was tracking a strong thunderstorm near
Kirbyville, moving northeast at 55 mph.

Pea size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Newton, Kirbyville, Toledo Bend Dam, Call, Burkeville, Farrsville,
Magnolia Springs, Burr Ferry, Mayflower, Mt. Union, Jamestown,
Roganville, Stringtown, Bleakwood, Wiergate and Evans.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

A Tornado Watch remains in effect until 700 PM CDT for west central
Louisiana...and southeastern Texas.

LAT...LON 3109 9340 3059 9389 3069 9408 3117 9377
      3118 9360 3117 9358 3118 9356
TIME...MOT...LOC 2022Z 211DEG 49KT 3071 9393

RM12

Special weather statement, Apr 13, 4:02 PM CDT, 3 hours 11 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
402 PM CDT Sat Apr 13 2019

LAZ027-TXZ260-132115-
Vernon LA-Northern Newton TX-
402 PM CDT Sat Apr 13 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN VERNON PARISH IN
WEST CENTRAL LOUISIANA AND NORTHEASTERN NEWTON COUNTIES UNTIL 415 PM
CDT...

At 402 PM CDT, Doppler radar was tracking a strong thunderstorm near
Burr Ferry, or near Toledo Bend Dam, moving northeast at 55 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Anacoco, Toledo Bend Dam, Hornbeck, Burr Ferry and Kurthwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A Tornado Watch remains in effect until 700 PM CDT for west central
Louisiana...and southeastern Texas.

LAT...LON 3136 9313 3101 9345 3110 9362 3117 9358
      3119 9355 3123 9355 3128 9352 3128 9344
      3136 9339
TIME...MOT...LOC 2102Z 211DEG 49KT 3113 9349

RM12

Special weather statement, Apr 13, 4:08 PM CDT, 3 hours 5 minutes before

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Special weather statement, Apr 13, 4:36 PM CDT, 2 hours 37 minutes before

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Special weather statement, Apr 13, 5:59 PM CDT, 1 hour 14 minutes before

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Special weather statement, Apr 13, 6:02 PM CDT, 1 hour 11 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
Apr 14, 4:11 AM CDT	Small Craft Advisory	LCH		8 hr
Apr 13, 8:20 PM CDT	River Flood Warning	LCH	Hardin, Jasper, Jefferson, Orange	32 hr

Nearby

Wind Advisories in Louisiana, 2019 Every wind advisory in 2019

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.