Alert archive / Louisiana / Wind Advisories in 2023

Wind Advisory 12, NWS New Orleans, LA

December 24, 20239 parishes in Louisiana; 5 counties in Mississippi

NWS New Orleans, LA issued this wind advisory at Dec 24, 2023, 4:13 AM CST for 9 parishes in Louisiana; 5 counties in Mississippi. It took effect at Dec 24, 2023, 10:00 AM CST. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Dec 24, 2023, 4:13 AM CST (10:13 UTC)
In effect from
Dec 24, 2023, 10:00 AM CST
Expired
Dec 25, 2023, 12:00 AM CST
In force
14 hr
Issued by
NWS New Orleans, LA

Counties Jefferson Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Saint Bernard Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, Hancock County, MS, Harrison County, MS, Jackson County, MS, Pearl River County, MS, Walthall County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 10.2 hours before the alert went out and 19 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 2023-12-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 00:00Z on 2023-12-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
827 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 24, 4:00 AM CSTGale WarningLIX20 hr
Dec 24, 4:00 AM CSTSmall Craft AdvisoryLIX24 hr
Dec 24, 5:20 PM CSTSpecial Weather StatementLIXOrleans40 min
Dec 24, 4:12 AM CSTCoastal Flood WarningLIXHancock26 hr

Nearby

Wind Advisories in Louisiana, 2023Wind Advisories in Mississippi, 2023Every wind advisory in 2023

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.