Alert archive / Louisiana / Flash Flood Warnings in 2024

Flash Flood Warning 23, NWS New Orleans, LA

March 4, 20244 parishes in Louisiana

NWS New Orleans, LA issued this flash flood warning at Mar 4, 2024, 4:44 PM CST for 4 parishes in Louisiana. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 4, 2024, 4:44 PM CST (22:44 UTC)
Expired
Mar 4, 2024, 7:45 PM CST
In force
3 hr
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Flood severity
None

Counties Jefferson Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Saint Bernard Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 10.7 hours before the alert went out and 318 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 2024-03-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1223 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 2024-03-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
1223 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
552 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.7

Open this sounding in Storm Lab

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 4, 10:01 AM CSTSpecial Weather StatementLIXSaint Charles, Saint John the Baptist59 min
Mar 4, 11:06 AM CSTSpecial Marine WarningLIX54 min
Mar 4, 11:48 AM CSTSpecial Marine WarningLIX27 min
Mar 4, 11:49 AM CSTSpecial Weather StatementLIXSaint Tammany41 min
Mar 4, 11:53 AM CSTSpecial Marine WarningLIX42 min
Mar 4, 12:23 PM CSTSevere Thunderstorm WarningLIXJefferson, Orleans, Plaquemines, Saint Bernard37 min
Mar 4, 12:26 PM CSTSpecial Marine WarningLIX64 min
Mar 4, 1:32 PM CSTSpecial Marine WarningLIX43 min
Mar 4, 1:39 PM CSTSpecial Weather StatementLIXEast Baton Rouge, Iberville, Pointe Coupee, West Baton Rouge51 min
Mar 4, 2:08 PM CSTSpecial Marine WarningLIX67 min
Mar 4, 2:31 PM CSTSpecial Weather StatementLIXAscension44 min
Mar 4, 3:08 PM CSTAreal Flood AdvisoryLIXIberville, Pointe Coupee, West Baton Rouge3 hr
Mar 4, 3:11 PM CSTSpecial Marine WarningLIX64 min
Mar 4, 3:12 PM CSTMarine Dense Fog AdvisoryLIX13 hr
Mar 4, 3:12 PM CSTSmall Craft AdvisoryLIX24 hr
Mar 4, 3:14 PM CSTSpecial Weather StatementLIXSaint John the Baptist31 min
Mar 4, 3:22 PM CSTSpecial Marine WarningLIX53 min
Mar 4, 3:45 PM CSTSevere Thunderstorm WarningLIXSaint John the Baptist, Tangipahoa20 min
Mar 4, 3:47 PM CSTSpecial Marine WarningLIX58 min
Mar 4, 3:48 PM CSTSpecial Weather StatementLIXEast Baton Rouge, West Baton Rouge27 min
Mar 4, 3:51 PM CSTSpecial Marine WarningLIX54 min
Mar 4, 4:03 PM CSTSpecial Weather StatementLIXSaint Tammany27 min
Mar 4, 4:09 PM CSTSpecial Marine WarningLIX66 min
Mar 4, 4:12 PM CSTAreal Flood AdvisoryLIXEast Baton Rouge, Iberville, West Baton Rouge3 hr
Mar 4, 4:27 PM CSTAreal Flood AdvisoryLIXJefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles3 hr
Mar 4, 4:39 PM CSTAreal Flood WarningLIXJefferson, Orleans, Plaquemines, Saint Bernard5 min
Mar 4, 4:49 PM CSTFlash Flood WarningLIXPointe Coupee, West Feliciana3 hr
Mar 4, 4:54 PM CSTFlash Flood WarningLIXPointe Coupee3 hr
Mar 4, 4:59 PM CSTSpecial Marine WarningLIX61 min
Mar 4, 5:02 PM CSTSevere Thunderstorm WarningLIXOrleans, Saint Bernard32 min
Mar 4, 5:09 PM CSTSpecial Marine WarningLIX66 min
Mar 4, 5:19 PM CSTFlash Flood WarningLIXJefferson, Orleans, Saint Charles3 hr
Mar 4, 5:50 PM CSTSpecial Marine WarningLIX55 min

Nearby

Flash Flood Warnings in Louisiana, 2024Every flash flood warning in 2024

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.