Alert archive / Louisiana / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 21, NWS Lake Charles, LA

April 4, 20195 parishes in Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 4, 2019, 8:42 AM CDT for 5 parishes in Louisiana. It was in force for 63 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 4, 2019, 8:42 AM CDT (13:42 UTC)
Expired
Apr 4, 2019, 9:45 AM CDT
In force
63 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Iberia Parish, LA, Lafayette Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Vermilion Parish, LA

What was reported inside it

TimeReportWhereRemark
Apr 4, 8:58 AM CDTHAIL 1New Iberia, LAMEDIA REPORTS OF ONE INCH HAIL AROUND NEW IBERIA.
Apr 4, 9:00 AM CDTTSTM WND DMGLydia, LATREES SNAPPED OR BLOWN DOWN AND POWER POLES LEANING IN SEVERAL AREAS AROUND LYDIA. POSSIBLE TORNADO.
Apr 4, 9:00 AM CDTTSTM WND DMGLydia, LAPUBLC SENT PICTURE OF POWER POLLS DOWN AND LEANING IN LYDIA ALONG US90
Apr 4, 9:14 AM CDTHAIL 1Jeanerette, LAMEDIA REPORTS SHOWED ONE INCH HAIL IN JEANERETTE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 1.7 hours before the alert went out and 190 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, Slidell Radar S, LA at 12:00Z on 2019-04-04Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2019-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 220 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
941 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
220 m²/s²
0-3 km storm-relative helicity
236 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

839 
WUUS54 KLCH 041342
SVRLCH
LAC045-055-099-101-113-041445-
/O.NEW.KLCH.SV.W.0021.190404T1342Z-190404T1445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
842 AM CDT Thu Apr 4 2019

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Southeastern Lafayette Parish in south central Louisiana...
  Iberia Parish in south central Louisiana...
  Northwestern St. Mary Parish in south central Louisiana...
  Northeastern Vermilion Parish in southwestern Louisiana...
  Northwestern St. Martin Parish in south central Louisiana...

* Until 945 AM CDT.

* At 842 AM CDT, a severe thunderstorm was located over Delcambre, or
  near Avery Island, moving northeast at 30 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Lafayette, New Iberia, Abbeville, Catahoula, Breaux Bridge,
  Franklin, St. Martinville, Jeanerette, Kaplan, Avery Island,
  Broussard, Youngsville, Erath, Delcambre, Maurice, Loreauville,
  Butte La Rose, Lydia, Acadiana Regional Airport and Jefferson
  Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3003 9128 2987 9155 2981 9170 2980 9178
      2985 9184 2986 9193 2978 9201 2978 9205
      2980 9211 3006 9230 3037 9165 3025 9158
      3023 9147 3020 9149 3019 9147 3011 9147
      3010 9139 3006 9137 3006 9131
TIME...MOT...LOC 1342Z 238DEG 27KT 2995 9198 

HAIL...0.75IN
WIND...60MPH
 
$$

K. Kuyper
1 follow-up statement
500 
WWUS54 KLCH 041405
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
905 AM CDT Thu Apr 4 2019

LAC055-113-041415-
/O.CAN.KLCH.SV.W.0021.000000T0000Z-190404T1445Z/
Lafayette LA-Vermilion LA-
905 AM CDT Thu Apr 4 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LAFAYETTE AND
NORTHEASTERN VERMILION PARISHES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3003 9128 2987 9155 2981 9170 2980 9178
      2983 9182 3001 9198 3026 9162 3024 9156
      3023 9148 3020 9149 3019 9147 3011 9147
      3010 9146 3010 9139 3006 9137 3006 9131
TIME...MOT...LOC 1405Z 238DEG 27KT 3003 9183 

$$

LAC045-099-101-041445-
/O.CON.KLCH.SV.W.0021.000000T0000Z-190404T1445Z/
Iberia LA-St. Mary LA-St. Martin LA-
905 AM CDT Thu Apr 4 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 AM CDT
FOR IBERIA...NORTHWESTERN ST. MARY AND CENTRAL ST. MARTIN PARISHES...

At 905 AM CDT, a severe thunderstorm was located over New Iberia,
moving northeast at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
New Iberia, Franklin, St. Martinville, Jeanerette, Loreauville,
Sorrel, Coteau, Lydia, Lake Fausse Pointe and Acadiana Regional
Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3003 9128 2987 9155 2981 9170 2980 9178
      2983 9182 3001 9198 3026 9162 3024 9156
      3023 9148 3020 9149 3019 9147 3011 9147
      3010 9146 3010 9139 3006 9137 3006 9131
TIME...MOT...LOC 1405Z 238DEG 27KT 3003 9183 

HAIL...1.00IN
WIND...60MPH
 
$$

RM12

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 2:14 AM CDTSpecial Weather StatementLCHVernon31 min
Apr 4, 2:19 AM CDTSpecial Weather StatementLCHVernon26 min
Apr 4, 2:28 AM CDTSevere Thunderstorm WarningLCHVernon27 min
Apr 4, 2:34 AM CDTSpecial Marine WarningLCH56 min
Apr 4, 2:35 AM CDTSevere Thunderstorm WarningLCHBeauregard40 min
Apr 4, 3:13 AM CDTSevere Thunderstorm WarningLCHAllen, Beauregard, Vernon27 min
Apr 4, 3:23 AM CDTSpecial Weather StatementLCHJefferson Davis37 min
Apr 4, 4:07 AM CDTSpecial Weather StatementLCHEvangeline23 min
Apr 4, 4:25 AM CDTSpecial Marine WarningLCH35 min
Apr 4, 4:31 AM CDTSevere Thunderstorm WarningLCHAvoyelles, Evangeline, Saint Landry19 min
Apr 4, 4:38 AM CDTSpecial Weather StatementLCHCameron37 min
Apr 4, 4:41 AM CDTSpecial Weather StatementLCHSaint Martin34 min
Apr 4, 4:48 AM CDTSevere Thunderstorm WarningLCHIberia, St. Mary27 min
Apr 4, 5:09 AM CDTSevere Thunderstorm WarningLCHCameron, Jefferson Davis51 min
Apr 4, 5:18 AM CDTAreal Flood AdvisoryLCHCalcasieu, Cameron117 min
Apr 4, 6:09 AM CDTSpecial Weather StatementLCHJefferson Davis51 min
Apr 4, 6:12 AM CDTSevere Thunderstorm WarningLCHCameron, Jefferson Davis, Vermilion48 min
Apr 4, 6:22 AM CDTFlash Flood WarningLCHCalcasieu, Cameron, Jefferson Davis, St. Mary5 hr
Apr 4, 6:54 AM CDTSevere Thunderstorm WarningLCHAcadia, Cameron, Vermilion66 min
Apr 4, 7:25 AM CDTSpecial Weather StatementLCHJefferson Davis50 min
Apr 4, 7:51 AM CDTFlash Flood WarningLCHAcadia, Cameron, Jefferson Davis, Vermilion3 hr
Apr 4, 7:53 AM CDTFlash Flood WarningLCHAllen, Beauregard, Calcasieu, Jefferson Davis2 hr
Apr 4, 7:55 AM CDTSevere Thunderstorm WarningLCHIberia, Vermilion65 min
Apr 4, 8:22 AM CDTSpecial Weather StatementLCHAcadia, Jefferson Davis53 min
Apr 4, 8:33 AM CDTFlash Flood WarningLCHIberia, Lafayette, Saint Martin, St. Mary, Vermilion117 min
Apr 4, 9:11 AM CDTSpecial Weather StatementLCHJefferson Davis64 min
Apr 4, 9:19 AM CDTFlash Flood Warning EmergencyLCHCalcasieu116 min
Apr 4, 9:32 AM CDTSpecial Weather StatementLCHLafayette43 min
Apr 4, 10:06 AM CDTRiver Flood WarningLCHBeauregard, Calcasieu70 days
Apr 4, 10:30 AM CDTSpecial Weather StatementLCHAcadia, Lafayette, Saint Martin, St. Mary, Vermilion45 min
Apr 4, 10:44 AM CDTFlash Flood WarningLCHAcadia, Iberia, Lafayette, Saint Martin, St. Mary, Vermilion2 hr
Apr 4, 10:51 AM CDTSevere Thunderstorm WarningLCHIberia, Saint Martin, St. Mary36 min
Apr 4, 11:17 AM CDTSevere Thunderstorm WarningLCHSaint Martin, St. Mary29 min
Apr 4, 11:58 AM CDTFlash Flood WarningLCHCalcasieu2 hr
Apr 4, 12:13 PM CDTSpecial Weather StatementLCHBeauregard47 min
Apr 4, 12:31 PM CDTSevere Thunderstorm WarningLCHAllen, Beauregard, Vernon59 min
Apr 4, 12:42 PM CDTFlash Flood WarningLCHAcadia, Cameron, Iberia, Jefferson Davis, Lafayette, Saint Martin and 2 more2 hr
Apr 4, 12:43 PM CDTTornado WarningLCHBeauregard21 min
Apr 4, 1:29 PM CDTSpecial Weather StatementLCHEvangeline46 min
Apr 4, 1:32 PM CDTSpecial Weather StatementLCHAcadia43 min
Apr 4, 2:15 PM CDTAreal Flood WarningLCHAcadia, Calcasieu, Cameron, Iberia, Jefferson Davis, Lafayette and 3 more3 hr
Apr 4, 2:19 PM CDTSpecial Weather StatementLCHEvangeline56 min
Apr 4, 2:26 PM CDTSpecial Weather StatementLCHSaint Landry49 min
Apr 4, 5:15 PM CDTSevere Thunderstorm WarningLCHBeauregard45 min
Apr 4, 5:58 PM CDTSevere Thunderstorm WarningLCHBeauregard62 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.