Alert archive / Louisiana / Wind Advisories in 2023

Wind Advisory 1, NWS New Orleans, LA

January 18, 202319 parishes in Louisiana; 5 counties in Mississippi

NWS New Orleans, LA issued this wind advisory at Jan 18, 2023, 3:41 AM CST for 19 parishes in Louisiana; 5 counties in Mississippi. It took effect at Jan 18, 2023, 9:00 AM CST. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued
Jan 18, 2023, 3:41 AM CST (09:41 UTC)
In effect from
Jan 18, 2023, 9:00 AM CST
Expired
Jan 19, 2023, 4:00 AM CST
In force
19 hr
Issued by
NWS New Orleans, LA
All 24 counties

Ascension Parish, LA, Assumption Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberville Parish, LA, Jefferson Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Pointe Coupee Parish, LA, Saint Bernard Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Amite County, MS, Pearl River County, MS, Pike County, MS, Walthall County, MS, Wilkinson County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 9.7 hours before the alert went out and 210 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 00:00Z on 2023-01-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 21 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 00:00Z on 2023-01-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.1939587897Sfc1 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
21 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
1179 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
103 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
Jan 17, 9:14 PM CSTDense Fog AdvisoryLIXJefferson, Livingston, Orleans, Plaquemines, Saint Bernard, Saint John the Baptist and 2 more12 hr
Jan 17, 9:15 PM CSTMarine Dense Fog AdvisoryLIX12 hr
Jan 18, 3:45 AM CSTSmall Craft AdvisoryLIX24 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.