Alert archive / Louisiana / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 28, NWS Lake Charles, LA

April 13, 2013Iberia Parish, Saint Martin Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 13, 2013, 11:24 PM CDT for Iberia Parish, Saint Martin Parish, Louisiana. 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 13, 2013, 11:24 PM CDT (04:24 UTC)
Expired
Apr 14, 2013, 12:15 AM CDT
In force
51 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon

Counties Iberia Parish, LA, Saint Martin Parish, LA

The radar

The Lake Charles radar (KLCH), 148 km from the middle of the area, began a volume at 04:26 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 00:00Z, 4.4 hours before the alert went out and 201 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 00:00Z on 2013-04-14Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2013-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -112 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
1617 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-112 m²/s²
0-3 km storm-relative helicity
174 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 10:20 PM CDTSpecial Marine WarningLCH25 min
Apr 13, 10:41 PM CDTSpecial Weather StatementLCHSt. Mary49 min
Apr 13, 11:06 PM CDTSpecial Marine WarningLCH39 min
Apr 13, 11:53 PM CDTSpecial Weather StatementLCHSt. Mary52 min
Apr 14, 12:07 AM CDTSpecial Weather StatementLCHSaint Martin38 min
Apr 14, 12:39 AM CDTSpecial Weather StatementLCHSaint Martin51 min
Apr 14, 12:57 AM CDTSpecial Weather StatementLCHAcadia63 min
Apr 14, 12:59 AM CDTSmall Craft Advisory for WindsLCH6 hr
Apr 14, 1:19 AM CDTAreal Flood AdvisoryLCHIberia, Lafayette, Saint Landry, Saint Martin, St. Mary, Vermilion116 min
Apr 14, 2:21 AM CDTSpecial Weather StatementLCHSaint Landry54 min
Apr 14, 3:19 AM CDTAreal Flood AdvisoryLCHAcadia, Cameron, Jefferson Davis, Lafayette, Saint Landry, Saint Martin and 1 more116 min
Apr 14, 7:25 AM CDTAreal Flood AdvisoryLCHAcadia, Avoyelles, Lafayette, Saint Landry, Saint Martin3 hr
Apr 14, 12:16 PM CDTRiver Flood WarningLCHLafayette, Vermilion24 hr

Nearby

Severe Thunderstorm Warnings in Louisiana, 2013Every severe thunderstorm warning in 2013

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.