Alert archive / Texas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 44, NWS Lake Charles, LA

April 18, 2019Hardin County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 18, 2019, 5:37 AM CDT for Hardin County, Texas. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 18, 2019, 5:37 AM CDT (10:37 UTC)
Expired
Apr 18, 2019, 6:28 AM CDT
In force
51 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Hardin County, TX

The radar

The Lake Charles radar (KLCH), 115 km from the middle of the area, began a volume at 10:42 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, 10.6 hours before the alert went out and 117 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 2019-04-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 553 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 00:00Z on 2019-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 195 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
553 J/kg
Mixed-layer CIN
-209 J/kg
Mixed-layer LCL
597 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
195 m²/s²
0-3 km storm-relative helicity
210 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Apr 18, 4:05 AM CDT, 1 hour 32 minutes earlier.

Area forecast discussion, Apr 18, 4:05 AM CDT, 1 hour 32 minutes before
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Hazardous weather outlook, Apr 17, 3:18 PM CDT, 14 hours 19 minutes before
Hazardous Weather Outlook
National Weather Service Lake Charles LA
318 PM CDT Wed Apr 17 2019

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-
182030-
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-
318 PM CDT Wed Apr 17 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

A squall line of showers and thunderstorms will begin to move into
Southeast Texas late overnight and before daybreak. There is a
Marginal Risk (5 percent) that severe weather in the form of
damaging winds and/or large hail may occur along the squall line
northwest of a Leesville to Beaumont line.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

On Thursday an upper level storm system along with a cold front
will clash with a moist and unstable air mass to produce showers
and thunderstorms with the potential for severe weather.

An Enhanced Risk (30 percent) that severe weather will occur
within 25 miles of a point is outlined roughly east of a
Leesville to Cameron line. This is for the potential of super
cell thunderstorms to develop ahead of a squall line late Thursday
morning into Thursday afternoon. The risk will include a 10
percent chance of significant tornadoes, along with damaging
winds and/or large hail. Also, the squall line itself will bring
a risk of damaging winds and/or large hail, along with a few quick
spin ups embedded within the line.

West of a Leesville to Cameron line to the Sabine River, a Slight
Risk (15 percent) of severe weather is outlined, mainly from
damaging winds and/or large hail along a squall line.

Also, during Thursday, there is a Slight Risk (10-20 percent) of
excessive rainfall leading to flooding east of a Leesville to
Abbeville line, and a Marginal Risk (5-10 percent) of excessive
rainfall leading to flooding west of a Leesville to Abbeville line
to the Sabine River. This will be mainly from street flooding due
to high rainfall rates falling in poor drainage areas. Also, high
tides along the coast may back-up some drainage systems in lower
Acadiana that run into the Gulf.

Due to strong south winds ahead of the front, tides will run about
1 to 2 feet above predicted levels that may cause some water run
up along the coast and minor coastal flooding for lower Acadiana
and the lower Atchafalaya Basin.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

GMZ430-432-435-450-452-455-470-472-475-182030-
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-
318 PM CDT Wed Apr 17 2019

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

.DAY ONE...This Afternoon and Tonight

South winds will increase with speeds over 20 knots. A small craft
advisory will be in effect.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Strong south winds will continue on Thursday east of Cameron with
a small craft advisory continuing.

Strong and gusty offshore winds will develop behind a cold front
late Thursday and persist into Friday. Wind speeds will be 25 to
30 knots with some gusts to gale force.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

In the hours before

Special weather statement, Apr 18, 4:46 AM CDT, 51 minutes before
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Special weather statement, Apr 18, 5:30 AM CDT, 7 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 3:30 AM CDTWind AdvisoryLCHLafayette, Saint Martin12 hr
Apr 18, 3:35 AM CDTGale WarningLCH12 hr
Apr 18, 7:52 AM CDTSpecial Weather StatementLCHVernon53 min
Apr 18, 8:11 AM CDTTornado WarningLCHVernon34 min
Apr 18, 9:27 AM CDTSpecial Weather StatementLCHAllen33 min
Apr 18, 9:32 AM CDTSpecial Weather StatementLCHCameron, Jefferson Davis43 min
Apr 18, 9:41 AM CDTSmall Craft AdvisoryLCH38 hr
Apr 18, 9:45 AM CDTSpecial Weather StatementLCHJefferson Davis45 min
Apr 18, 9:53 AM CDTSpecial Weather StatementLCHSaint Martin52 min
Apr 18, 9:55 AM CDTSpecial Marine WarningLCH35 min
Apr 18, 10:08 AM CDTSpecial Weather StatementLCHAcadia, Vermilion52 min
Apr 18, 10:15 AM CDTSpecial Marine WarningLCH2 hr
Apr 18, 10:19 AM CDTSpecial Weather StatementLCHAcadia, Cameron, Jefferson Davis56 min
Apr 18, 10:34 AM CDTSpecial Weather StatementLCHAllen, Evangeline, Rapides41 min
Apr 18, 11:00 AM CDTSevere Thunderstorm WarningLCHAcadia, Allen, Avoyelles, Evangeline, Rapides, Saint Landry45 min
Apr 18, 11:04 AM CDTSpecial Weather StatementLCHLafayette41 min
Apr 18, 11:05 AM CDTFlash Flood WatchLCHAllen, Avoyelles, Cameron, Evangeline, Lafayette, Rapides and 2 more8 hr
Apr 18, 11:06 AM CDTTornado WarningLCHAvoyelles, Evangeline, Saint Landry24 min
Apr 18, 11:12 AM CDTSpecial Weather StatementLCHAvoyelles33 min
Apr 18, 11:25 AM CDTAreal Flood AdvisoryLCHAcadia, Jefferson Davis3 hr
Apr 18, 11:34 AM CDTAreal Flood AdvisoryLCHRapides3 hr
Apr 18, 11:40 AM CDTSpecial Weather StatementLCHAvoyelles, Lafayette, Saint Landry65 min
Apr 18, 11:46 AM CDTSpecial Weather StatementLCHCalcasieu44 min
Apr 18, 12:02 PM CDTFlash Flood WarningLCHAcadia, Evangeline, Jefferson Davis, Saint Landry3 hr
Apr 18, 12:03 PM CDTSevere Thunderstorm WarningLCHAcadia, Avoyelles, Lafayette, Saint Landry42 min
Apr 18, 12:11 PM CDTAreal Flood AdvisoryLCHAvoyelles3 hr
Apr 18, 12:16 PM CDTSpecial Weather StatementLCHCameron44 min
Apr 18, 12:27 PM CDTSpecial Marine WarningLCH63 min
Apr 18, 12:35 PM CDTFlash Flood WarningLCHAvoyelles2 hr
Apr 18, 12:39 PM CDTSpecial Marine WarningLCH21 min
Apr 18, 12:53 PM CDTSpecial Weather StatementLCHLafayette, Saint Martin52 min
Apr 18, 12:58 PM CDTAreal Flood AdvisoryLCHLafayette, Saint Landry, Saint Martin, Vermilion2 hr
Apr 18, 12:58 PM CDTSpecial Weather StatementLCHVermilion47 min
Apr 18, 1:52 PM CDTSpecial Weather StatementLCHLafayette, Saint Martin, Vermilion38 min
Apr 18, 1:57 PM CDTFlash Flood WarningLCHLafayette, Saint Landry, Saint Martin3 hr
Apr 18, 2:14 PM CDTSpecial Weather StatementLCHSt. Mary46 min
Apr 18, 2:32 PM CDTAreal Flood AdvisoryLCHIberia, Vermilion118 min
Apr 18, 3:25 PM CDTRiver Flood WarningLCHLafayette, Vermilion23 hr
Apr 18, 3:47 PM CDTAreal Flood AdvisoryLCHIberia, Saint Martin, St. Mary58 min
Apr 18, 4:18 PM CDTGale WarningLCH18 hr
Apr 18, 5:01 PM CDTAreal Flood AdvisoryLCHIberia, Lafayette, Saint Martin119 min
Apr 18, 4:46 AM CDTSpecial Weather StatementLCHTyler29 min
Apr 18, 5:30 AM CDTSpecial Weather StatementLCHHardin30 min
Apr 18, 6:15 AM CDTSevere Thunderstorm WarningLCHHardin, Jasper, Newton, Tyler30 min
Apr 18, 6:45 AM CDTSpecial Weather StatementLCHJasper, Newton30 min

Nearby

Severe Thunderstorm Warnings in Texas, 2019Every severe thunderstorm warning 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.