Alert archive / Louisiana / Special Weather Statements in 2021

Special Weather Statement, NWS Lake Charles, LA

April 13, 2021Evangeline Parish, Louisiana

NWS Lake Charles, LA issued this special weather statement at Apr 13, 2021, 8:29 AM CDT for Evangeline Parish, Louisiana. It was in force for 61 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
Apr 13, 2021, 8:29 AM CDT (13:29 UTC)
Expired
Apr 13, 2021, 9:30 AM CDT
In force
61 min
Issued by
NWS Lake Charles, LA

County Evangeline Parish, LA

The radar

The Ft Polk radar (KPOE), 72 km from the middle of the area, began a volume at 13:30 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, 1.5 hours before the alert went out and 123 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 2021-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2326 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2021-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 184 square meters per square second.19395878Sfc1 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
2326 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
457 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
184 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
1.4
Supercell composite
8.9

Open this sounding in Storm Lab

The text

As transmitted.

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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 Apr 13, 6:49 AM CDT, 1 hour 40 minutes earlier.

Area forecast discussion, Apr 13, 6:49 AM CDT, 1 hour 40 minutes before
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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Apr 13, 4:20 AM CDT, 4 hours 9 minutes before
Hazardous Weather Outlook
National Weather Service Lake Charles LA
420 AM CDT Tue Apr 13 2021

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-140930-
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-
420 AM CDT Tue Apr 13 2021

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

.DAY ONE...Today and tonight.

There is a slight risk for severe thunderstorms today and tonight
across the area with the main threat being hail followed by wind
damage and an isolated tornado is possible. In addition...moderate
to occasional heavy rain could cause some isolated flooding of
low lying areas. When thunderstorms roar...stay indoors! Increased
cloud to ground lightning can be expected.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The threat of localized flooding is an ongoing concern across the
extreme eastern part of central and south central Louisiana Wednesday
and Wednesday night with lingering rains through Friday. A Flood
watch may be needed if forecast rain amounts significantly change or
expand. Otherwise...increased cloud to ground lightning will be
possible through Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

GMZ430-432-435-450-452-455-470-472-475-140930-
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-
420 AM CDT Tue Apr 13 2021

This Hazardous Weather Outlook is for the Gulf of Mexico and the
coastal lakes and bays of the Gulf of Mexico.

.DAY ONE...Today and tonight.

The probability for widespread hazardous weather is low. However...
showers and thunderstorms will be on the increase with higher
winds and seas near the stronger thunderstorms. Cloud to ground
lightning will be on the increase.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The probability for widespread hazardous weather is low. A cool
front will move into the coastal waters late Wednesday. Winds
and seas will be elevated Wednesday night and Thursday as high
pressure begins to build in behind the cold front. At least some
chance of showers and thunderstorms will be evident each day at
least through early Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Apr 13, 6:47 AM CDT, 1 hour 42 minutes before
Special Weather Statement
National Weather Service Lake Charles LA
647 AM CDT Tue Apr 13 2021

LAZ030-131230-
Beauregard LA-
647 AM CDT Tue Apr 13 2021

...SPECIAL WEATHER STATEMENT...

At 647 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Longville to near Bancroft. Movement was
northeast at 20 mph.

Half inch hail and winds in excess of 30 mph will be possible with
these storms.

Locations impacted include...
De Ridder, Merryville, Singer, Longville, Bivens, Tulla and Bundick
Lake.

LAT...LON 3054 9330 3054 9368 3080 9354 3083 9341
      3085 9307 3081 9299
TIME...MOT...LOC 1147Z 233DEG 19KT 3067 9325 3057 9364

06
Special weather statement, Apr 13, 7:07 AM CDT, 1 hour 22 minutes before
Special Weather Statement
National Weather Service Lake Charles LA
707 AM CDT Tue Apr 13 2021

LAZ030-031-131245-
Allen LA-Beauregard LA-
707 AM CDT Tue Apr 13 2021

...SPECIAL WEATHER STATEMENT...

At 707 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Mittie to near Oberlin. Movement was
northeast at 20 mph.

Half inch hail and winds in excess of 30 mph will be possible with
these storms.

Locations impacted include...
Oakdale, Elizabeth, Mittie and Grant.

LAT...LON 3083 9266 3059 9283 3068 9305 3088 9295
      3088 9283 3089 9282 3089 9280
TIME...MOT...LOC 1207Z 210DEG 18KT 3072 9298 3066 9282

06
Special weather statement, Apr 13, 7:26 AM CDT, 1 hour 3 minutes before
Special Weather Statement
National Weather Service Lake Charles LA
726 AM CDT Tue Apr 13 2021

LAZ027>033-TXZ260-131315-
St. Landry LA-Avoyelles LA-Evangeline LA-Allen LA-Beauregard LA-
Vernon LA-Rapides LA-Northern Newton TX-
726 AM CDT Tue Apr 13 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN RAPIDES...EVANGELINE...
BEAUREGARD...SOUTHWESTERN AVOYELLES...NORTHWESTERN ST. LANDRY...
VERNON...ALLEN PARISHES IN SOUTHWESTERN LOUISIANA AND NORTHEASTERN
NEWTON COUNTIES UNTIL 815 AM CDT...

At 725 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Merryville to 7 miles northeast of Tulla
to near Elizabeth to near Swords. Movement was north at 25 mph.

Half inch hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
De Ridder, Eunice, Oakdale, Ville Platte, Leesville, Bunkie, Mamou,
Oberlin, Rosepine, Glenmora, Merryville, Cheneyville, Elizabeth,
Turkey Creek, Singer, Sugartown, Hineston, Mittie, Dry Creek and Fort
Polk.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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

These storms 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.

&&

LAT...LON 3117 9355 3114 9213 3048 9221 3059 9364
TIME...MOT...LOC 1225Z 184DEG 21KT 3074 9359 3082 9316 3081 9284 3054
9227

K. Kuyper
Special weather statement, Apr 13, 8:29 AM CDT, 0 minutes before
Special Weather Statement
National Weather Service Lake Charles LA
829 AM CDT Tue Apr 13 2021

LAZ028-029-032-131430-
Avoyelles LA-Evangeline LA-Rapides LA-
829 AM CDT Tue Apr 13 2021

...SIGNIFICANT WEATHER ADVISORY...

At 828 AM CDT, Doppler radar was tracking a strong thunderstorm over
Bayou Chicot, or near Turkey Creek, moving north at 25 mph.

Pea size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Ville Platte, Bunkie, Cheneyville, Turkey Creek, Pine Prairie,
Mansura, Lecompte, Hessmer, Evergreen, Bayou Chicot, Echo, Indian
Lake, Chicot State Park, Beaver, St. Landry and Forest Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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.

&&

LAT...LON 3108 9205 3085 9216 3085 9221 3079 9221
      3078 9220 3067 9225 3077 9260 3089 9260
      3119 9246
TIME...MOT...LOC 1328Z 201DEG 23KT 3081 9239

Rua

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 6:47 AM CDTSpecial Weather StatementLCHBeauregard43 min
Apr 13, 7:07 AM CDTSpecial Weather StatementLCHAllen38 min
Apr 13, 7:26 AM CDTSpecial Weather StatementLCHAllen, Beauregard, Evangeline, Vernon49 min
Apr 13, 9:10 AM CDTSpecial Weather StatementLCHSaint Landry50 min
Apr 13, 10:56 AM CDTSpecial Weather StatementLCHAcadia49 min
Apr 13, 11:46 AM CDTSpecial Weather StatementLCHLafayette, Saint Martin44 min
Apr 13, 12:33 PM CDTSpecial Weather StatementLCHSaint Martin57 min
Apr 13, 12:53 PM CDTFlash Flood WarningLCHIberia, Lafayette, Saint Martin, St. Mary, Vermilion6 hr
Apr 13, 1:09 PM CDTRiver Flood WarningLCHLafayette, Saint Martin, Vermilion18 hr
Apr 13, 1:33 PM CDTSpecial Weather StatementLCHSaint Martin57 min
Apr 13, 2:24 PM CDTSpecial Weather StatementLCHSaint Martin51 min
Apr 13, 2:47 PM CDTFlash Flood WarningLCHIberia, Saint Martin, St. Mary4 hr
Apr 13, 2:55 PM CDTSpecial Weather StatementLCHSt. Mary65 min
Apr 13, 3:31 PM CDTFlash Flood WatchLCHAllen, Avoyelles, Beauregard, Cameron, Evangeline, Lafayette and 4 more4 days
Apr 13, 4:33 PM CDTSpecial Marine WarningLCH27 min
Apr 13, 5:16 PM CDTSpecial Marine WarningLCH59 min
Apr 13, 5:20 PM CDTSpecial Weather StatementLCHLafayette40 min
Apr 13, 6:49 PM CDTSpecial Weather StatementLCHAssumption41 min
Apr 13, 6:53 PM CDTSpecial Marine WarningLCH67 min

Nearby

Special Weather Statements in Louisiana, 2021Every special weather statement in 2021

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.