Alert archive / Louisiana / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 92, NWS Lake Charles, LA

July 16, 2020Iberia Parish, Vermilion Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jul 16, 2020, 3:36 PM CDT for Iberia Parish, Vermilion Parish, Louisiana. It was in force for 39 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
Jul 16, 2020, 3:36 PM CDT (20:36 UTC)
Expired
Jul 16, 2020, 4:15 PM CDT
In force
39 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Iberia Parish, LA, Vermilion Parish, LA

The radar

The Lake Charles radar (KLCH), 122 km from the middle of the area, began a volume at 20:36 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.6 hours before the alert went out and 238 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 2020-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 216 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 2020-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.1939Sfc1 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
216 J/kg
Mixed-layer CIN
-124 J/kg
Mixed-layer LCL
856 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 1:59 PM CDTSpecial Weather StatementLCHSt. Mary46 min
Jul 16, 2:59 PM CDTSpecial Weather StatementLCHIberia46 min
Jul 16, 3:10 PM CDTSpecial Marine WarningLCH35 min
Jul 16, 3:27 PM CDTSpecial Weather StatementLCHVermilion48 min
Jul 16, 3:56 PM CDTSpecial Marine WarningLCH64 min
Jul 16, 5:04 PM CDTSpecial Marine WarningLCH41 min
Jul 16, 5:26 PM CDTSpecial Weather StatementLCHRapides64 min
Jul 16, 5:43 PM CDTSpecial Weather StatementLCHCameron32 min
Jul 16, 5:46 PM CDTSpecial Marine WarningLCH29 min
Jul 16, 5:49 PM CDTSpecial Marine WarningLCH41 min
Jul 16, 5:58 PM CDTSpecial Marine WarningLCH47 min
Jul 16, 6:13 PM CDTSpecial Weather StatementLCHCameron47 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2020Every severe thunderstorm warning in 2020

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.