Alert archive / Louisiana / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 111, NWS Lake Charles, LA

June 20, 2023Iberia Parish, Saint Martin Parish, St. Mary Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jun 20, 2023, 6:01 PM CDT for Iberia Parish, Saint Martin Parish, St. Mary Parish, Louisiana. It was in force for 29 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
Jun 20, 2023, 6:01 PM CDT (23:01 UTC)
Expired
Jun 20, 2023, 6:30 PM CDT
In force
29 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 20, 5:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.0 hours before the alert went out and 195 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 2023-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1812 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, Slidell Radar S, LA at 12:00Z on 2023-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 143 square meters per square second.193958Sfc1 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
1812 J/kg
Mixed-layer CIN
-260 J/kg
Mixed-layer LCL
883 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
176 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 2:50 PM CDTHeat AdvisoryLCHBeauregard, Calcasieu, Cameron28 hr
Jun 20, 4:49 PM CDTSpecial Weather StatementLCHRapides41 min
Jun 20, 4:55 PM CDTSevere Thunderstorm WarningLCHRapides50 min
Jun 20, 5:44 PM CDTSevere Thunderstorm WarningLCHRapides, Vernon46 min
Jun 20, 6:28 PM CDTSevere Thunderstorm WarningLCHAllen, Evangeline, Rapides47 min
Jun 20, 6:38 PM CDTSevere Thunderstorm WarningLCHAvoyelles, Rapides67 min
Jun 20, 6:44 PM CDTSevere Thunderstorm WarningLCHIberia, Saint Martin, St. Mary46 min
Jun 20, 6:48 PM CDTSevere Thunderstorm WarningLCHSaint Martin42 min
Jun 20, 6:53 PM CDTSevere Thunderstorm WarningLCHAvoyelles, Evangeline, Rapides52 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2023Every severe thunderstorm warning in 2023

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.