Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Lake Charles, LA

April 15, 2021Jasper County, Tyler County, Texas

NWS Lake Charles, LA issued this special weather statement at Apr 15, 2021, 11:20 PM CDT for Jasper County, Tyler County, Texas. It was in force for 40 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 15, 2021, 11:20 PM CDT (04:20 UTC)
Expired
Apr 16, 2021, 12:00 AM CDT
In force
40 min
Issued by
NWS Lake Charles, LA

Counties Jasper County, TX, Tyler County, TX

The radar

The Lake Charles radar (KLCH), 122 km from the middle of the area, began a volume at 04:19 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, 4.3 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 00:00Z on 2021-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2021-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
952 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
210 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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 15, 8:01 PM CDT, 3 hours 19 minutes earlier.

Area forecast discussion, Apr 15, 8:01 PM CDT, 3 hours 19 minutes before
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</head>
<body>
  <main class="wrap">
    <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 15, 3:45 PM CDT, 7 hours 35 minutes before
Hazardous Weather Outlook
National Weather Service Lake Charles LA
345 PM CDT Thu Apr 15 2021

TXZ180-201-215-216-259>262-162045-
Tyler-Hardin-Jefferson-Orange-Northern Jasper-Northern Newton-
Southern Jasper-Southern Newton-
345 PM CDT Thu Apr 15 2021

This Hazardous Weather Outlook is for southeast Texas.

.DAY ONE...This afternoon and tonight.

Isolated, mainly light showers, will be possible this afternoon and
early this evening. Precipitation will increase after midnight
through Friday morning as an upper level disturbance moves across the
area.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Scattered to widespread showers and thunderstorms will persist Friday
into Friday night as a cold front approaches. A few of these storms
could be strong to severe with damaging winds and large hail being
the primary threats. The front will move through Saturday morning
with isolated showers possible in it's wake through Saturday
afternoon.

Drier conditions are expected Sunday through mid next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

LAZ027>033-041>045-052>055-073-074-162045-
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-
345 PM CDT Thu Apr 15 2021

...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY AFTERNOON...

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

.DAY ONE...This afternoon and tonight.
Isolated, mainly light showers, will be possible this afternoon and
early this evening. Precipitation will increase after midnight
through Friday morning as an upper level disturbance moves across the
area.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Scattered to widespread showers and thunderstorms will persist Friday
into Friday night as a cold front approaches. A few of these storms
could be strong to severe with damaging winds and large hail being
the primary threats. Some storms will also be capable of producing
heavy rainfall that could lead to localized flash flooding. The
front will move through Saturday morning with isolated showers
possible in it's wake through Saturday afternoon.

Drier conditions are expected Sunday through mid next week.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

GMZ430-432-435-450-452-455-470-472-475-162045-
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-
345 PM CDT Thu Apr 15 2021

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

.DAY ONE...This afternoon and tonight.

Isolated, mainly light showers, will be possible this afternoon and
early this evening across the coastal waters.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Scattered to widespread showers and thunderstorms will redevelop
Friday into Friday night as a cold front approaches. A few of these
storms could be strong to severe with damaging winds and large hail
being the primary threats. Some storms will also be capable of
producing heavy rainfall. The front will move through Saturday
morning with isolated showers possible in it's wake through Saturday
afternoon.

Drier conditions are expected Sunday through mid next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Apr 15, 11:20 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Lake Charles LA
1120 PM CDT Thu Apr 15 2021

TXZ180-259-160500-
Northern Jasper TX-Tyler TX-
1120 PM CDT Thu Apr 15 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN TYLER AND EAST CENTRAL
JASPER COUNTIES UNTIL MIDNIGHT CDT...

At 1120 PM CDT, Doppler radar was tracking a strong thunderstorm near
Woodville, moving east at 40 mph.

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

Locations impacted include...
Jasper, Woodville, Kirbyville, Town Bluff, Spurger, Roganville,
Magnolia Springs, Mt. Union, Ivanhoe and Hillister.

LAT...LON 3064 9456 3082 9454 3091 9388 3056 9389
TIME...MOT...LOC 0420Z 272DEG 37KT 3073 9447

Rua

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 11:57 PM CDTSevere Thunderstorm WarningLCHBeauregard48 min
Apr 16, 3:06 AM CDTSpecial Weather StatementLCHEvangeline24 min
Apr 16, 3:11 AM CDTSevere Thunderstorm WarningLCHBeauregard, Calcasieu34 min
Apr 16, 3:30 AM CDTSpecial Weather StatementLCHEvangeline45 min
Apr 16, 3:44 AM CDTSevere Thunderstorm WarningLCHAllen, Beauregard, Calcasieu, Jefferson Davis31 min
Apr 16, 4:12 AM CDTSevere Thunderstorm WarningLCHAcadia, Allen, Evangeline, Jefferson Davis33 min
Apr 16, 4:13 AM CDTSpecial Weather StatementLCHSaint Landry47 min
Apr 16, 4:33 AM CDTSevere Thunderstorm WarningLCHAcadia, Jefferson Davis, Lafayette, Saint Landry, Vermilion42 min
Apr 16, 5:11 AM CDTSevere Thunderstorm WarningLCHIberia, Lafayette, Saint Landry, Saint Martin, St. Mary, Vermilion64 min
Apr 16, 10:34 AM CDTRiver Flood WarningLCHLafayette, Saint Landry, Saint Martin57 hr
Apr 16, 4:22 PM CDTSmall Craft AdvisoryLCH35 hr
Apr 16, 1:59 AM CDTSpecial Weather StatementLCHJasper, Tyler31 min
Apr 16, 2:35 AM CDTSpecial Weather StatementLCHJasper, Newton25 min
Apr 16, 2:43 AM CDTSevere Thunderstorm WarningLCHJasper, Newton, Tyler32 min

Nearby

Special Weather Statements in Texas, 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.