Alert archive / Louisiana / Flash Flood Warnings in 2020

Flash Flood Warning 44, NWS Lake Charles, LA

October 23, 2020Iberia Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Oct 23, 2020, 5:31 PM CDT for Iberia Parish, Louisiana. It was in force for 119 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
Oct 23, 2020, 5:31 PM CDT (22:31 UTC)
Expired
Oct 23, 2020, 7:30 PM CDT
In force
119 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

County Iberia Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.5 hours before the alert went out and 354 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, Jackson, MS at 12:00Z on 2020-10-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 591 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, Jackson, MS at 12:00Z on 2020-10-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
591 J/kg
Mixed-layer CIN
-75 J/kg
Mixed-layer LCL
853 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
83 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
Oct 23, 4:28 AM CDTSpecial Marine WarningLCH62 min
Oct 23, 2:45 PM CDTSpecial Weather StatementLCHVernon45 min
Oct 23, 3:30 PM CDTSpecial Weather StatementLCHBeauregard, Vernon45 min
Oct 23, 4:21 PM CDTSpecial Weather StatementLCHAllen, Beauregard, Calcasieu, Rapides, Vernon39 min
Oct 23, 4:23 PM CDTSpecial Weather StatementLCHSt. Mary52 min
Oct 23, 5:02 PM CDTSpecial Weather StatementLCHAcadia, Allen, Avoyelles, Calcasieu, Cameron, Evangeline and 5 more43 min
Oct 23, 5:07 PM CDTSpecial Weather StatementLCHIberia38 min
Oct 23, 5:44 PM CDTSpecial Weather StatementLCHAcadia, Avoyelles, Evangeline, Iberia, Lafayette, Saint Landry and 2 more46 min
Oct 23, 6:27 PM CDTSpecial Weather StatementLCHAvoyelles, Iberia, Lafayette, Saint Landry, Saint Martin, St. Mary48 min
Oct 23, 1:28 PM CDTSpecial Weather StatementLCHTyler47 min
Oct 23, 2:14 PM CDTSpecial Weather StatementLCHHardin, Jasper, Tyler31 min

Nearby

Flash Flood Warnings in Louisiana, 2020Every flash flood 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.