Alert archive / Louisiana / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 124, NWS Lake Charles, LA

June 21, 2008Acadia Parish, Cameron Parish, Vermilion Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jun 21, 2008, 6:10 PM CDT for Acadia Parish, Cameron Parish, Vermilion Parish, Louisiana. It was in force for 35 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 21, 2008, 6:10 PM CDT (23:10 UTC)
Expired
Jun 21, 2008, 6:45 PM CDT
In force
35 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon

Counties Acadia Parish, LA, Cameron Parish, LA, Vermilion Parish, LA

The radar

The Lake Charles radar (KLCH), 58 km from the middle of the area, began a volume at 23:11 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 12:00Z, 11.2 hours before the alert went out and 56 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 12:00Z on 2008-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2352 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 12:00Z on 2008-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
2352 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
798 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.8

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 4:56 AM CDTSpecial Marine WarningLCH2 hr
Jun 21, 3:08 PM CDTSevere Thunderstorm WarningLCHAllen, Evangeline, Rapides, Vernon52 min
Jun 21, 3:11 PM CDTSevere Thunderstorm WarningLCHSaint Martin, St. Mary34 min
Jun 21, 3:34 PM CDTSpecial Marine WarningLCH56 min
Jun 21, 3:54 PM CDTSevere Thunderstorm WarningLCHAvoyelles51 min
Jun 21, 4:22 PM CDTSevere Thunderstorm WarningLCHVermilion38 min
Jun 21, 4:28 PM CDTSpecial Marine WarningLCH2 hr
Jun 21, 4:51 PM CDTSpecial Marine WarningLCH54 min
Jun 21, 5:05 PM CDTSevere Thunderstorm WarningLCHVermilion29 min
Jun 21, 5:14 PM CDTSevere Thunderstorm WarningLCHAcadia, Jefferson Davis61 min
Jun 21, 5:24 PM CDTSevere Thunderstorm WarningLCHJefferson Davis36 min
Jun 21, 5:54 PM CDTAreal Flood AdvisoryLCHAcadia, Jefferson Davis3 hr
Jun 21, 6:08 PM CDTSevere Thunderstorm WarningLCHLafayette, Saint Martin52 min
Jun 21, 6:29 PM CDTAreal Flood AdvisoryLCHLafayette3 hr
Jun 21, 3:21 PM CDTSevere Thunderstorm WarningLCHHardin39 min
Jun 21, 4:01 PM CDTSevere Thunderstorm WarningLCHHardin44 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2008Every severe thunderstorm warning in 2008

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.