Alert archive / Louisiana / Red Flag Warnings in 2023

Red Flag Warning 8, NWS New Orleans, LA

October 30, 202319 parishes in Louisiana; 8 counties in Mississippi

NWS New Orleans, LA issued this red flag warning at Oct 30, 2023, 3:07 PM CDT for 19 parishes in Louisiana; 8 counties in Mississippi. It took effect at Oct 31, 2023, 10:00 AM CDT. It was in force for 9 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: Oct 30, 2023, 3:07 PM CDT (20:07 UTC)
In effect from: Oct 31, 2023, 10:00 AM CDT
Expired: Oct 31, 2023, 7:00 PM CDT
In force: 9 hr
Issued by: NWS New Orleans, LA

All 27 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, Hancock County, MS, Harrison County, MS, Jackson County, MS, Pearl River County, MS, Pike County, MS, Walthall County, MS, Wilkinson County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.1 hours before the alert went out and 76 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 25 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 861 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New Orleans, LA wrote its last area forecast discussion before this red flag warning went out at Oct 30, 12:59 PM CDT, 2 hours 8 minutes earlier.

Area forecast discussion, Oct 30, 12:59 PM CDT, 2 hours 8 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 30, 3:17 AM CDT	Gale Watch	LIX		25 hr
Oct 30, 3:07 PM CDT	Fire Weather Watch	LIX	Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 13 more	24 hr

Nearby

Red Flag Warnings in Louisiana, 2023 Red Flag Warnings in Mississippi, 2023 Every red flag warning 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.